Opening and closing device and terminal machine applying the same

Abstract

The present application provides a kind of opening and closing device and terminal machine applying this opening and closing device, the opening and closing device can correspond to the soft display panel of the two faces of first shell and second shell, and can drive the internal mechanism of first shell and second shell when first shell and second shell are opened and closed, so that terminal machine body is more light and thin.The opening and closing device includes: first sliding mechanism, which is assembled on the first assembly base assembled on the side of first shell;And second sliding mechanism, which is assembled on the second assembly base assembled on the side of second shell.The first sliding mechanism includes: first B hinge shaft, second B hinge shaft, connecting member, first sliding mechanism drive belt and second sliding mechanism drive belt, third sliding mechanism drive belt and fourth sliding mechanism drive belt, first sliding member and second sliding member, third sliding member and fourth sliding member, and first chain mechanism and second chain mechanism.

Description

TECHNICAL FIELD

[0001] The present invention relates to an opening and closing device for a notebook computer, a laptop computer, an electronic dictionary, a PDA (Personal Digital Assistant), and the like, and a terminal machine using the same. BACKGROUND

[0002] Conventionally, an opening and closing device for connecting a first housing on the keyboard side and a second housing on the display panel side of a terminal machine such as a notebook computer or an electronic dictionary so as to be openable and closable has been known, for example, from Japanese Patent No. 1997-280248. The known opening and closing device is provided with an operating mechanism for operating the internal mechanism of the first housing on the side of the opening and closing device, so that the internal operating mechanism of the first housing is driven by the operating mechanism when the opening and closing device is operated to open and close. For example, when the first housing and the second housing are operated to open and close, the foot provided at the bottom of the first housing is driven by the operating mechanism so as to be extended and contracted in accordance with the opening and closing angle.

[0003] In recent years, terminal machines such as notebook computers have been required to be portable, and the opening and closing device for the display panel has been required to be different. For example, the opening and closing device is required to be applicable to a flexible display panel provided across both sides of the first housing and the second housing, or the opening and closing device is required to be provided with an operating mechanism for operating the internal mechanisms of the first housing and the second housing in accordance with the opening and closing operation of the opening and closing device. SUMMARY

[0004] An object of the present invention is to provide an opening and closing device and a terminal machine using the same, which are applicable to a flexible display panel provided across both sides of a first housing and a second housing, and which are capable of driving the internal mechanisms of the first housing and the second housing when the first housing and the second housing are operated to open and close, so that the body of the terminal machine is made thinner.

[0005] To achieve the above object, the opening and closing device of the present application comprises a first sliding mechanism, a second sliding mechanism, a first chain mechanism and a second chain mechanism, a connecting member, a first A hinge shaft, a second A hinge shaft, and a braking mechanism. The first sliding mechanism is arranged on a first assembly base assembled on a first housing side, and the second sliding mechanism is arranged on a second assembly base assembled on a second housing side. The first sliding mechanism comprises a first B hinge shaft, first and second sliding mechanism driving belts, and first and second sliding members. The first B hinge shaft is assembled on the first assembly base side and can rotate during the opening and closing operation of the first housing; the first and second sliding mechanism driving belts are wound on the first B hinge shaft at a certain interval and change the winding direction of each end portion; the first and second sliding members are assembled on the first assembly base side and can slide in the radial direction of the first B hinge shaft, and are connected to the other end portion side of the first and second sliding mechanism driving belts. The second sliding mechanism comprises a second B hinge shaft, third and fourth sliding mechanism driving belts, and third and fourth sliding members. The second B hinge shaft is assembled on the second assembly base side, opposite to the first B hinge shaft, and can rotate during the opening and closing operation of the second housing; the third and fourth sliding mechanism driving belts are wound on the second B hinge shaft at a certain interval and change the winding direction of each end portion; the third and fourth sliding members are assembled on the second assembly base side and can slide in the radial direction of the second B hinge shaft, and are connected to the other end portion side of the third and fourth sliding mechanism driving belts. The first and second chain mechanisms are arranged between the first and second sliding members and between the third and fourth sliding members, respectively; the connecting member connects the first and second B hinge shafts in the radial direction and allows them to rotate relative to each other. The first A hinge shaft is assembled on the first assembly base and can rotate, and is connected to the first B hinge shaft; the second A hinge shaft is assembled on the second assembly base and can rotate, and is connected to the second B hinge shaft. The braking mechanism is arranged on the first and second A hinge shafts and regulates the rotation angle of each. The braking mechanism comprises a locking segment and an assembly piece. The locking segment is arranged on the first A assembly member rotatable shaft support of the first A hinge shaft assembled on the first assembly base and the second A assembly member rotatable shaft support of the second A hinge shaft assembled on the second assembly base, respectively; the assembly piece is arranged on the connecting member connecting one end side of the first and second A hinge shafts. When the first and second assembly bases are rotated by the opening and closing operation of the first and second housings, respectively, the locking segments of the first and second A assembly members abut against the assembly piece of the connecting member to regulate rotation.

[0006] Secondly, the opening and closing device of the present application further comprises a synchronous rotation mechanism, which is disposed adjacent to the first sliding mechanism and the second sliding mechanism, and comprises the first A hinge shaft, the second A hinge shaft, a connecting member, and first and second synchronous rotation driving belts; the connecting member links the other ends of the first A hinge shaft and the second A hinge shaft in the radial direction; the first and second synchronous rotation driving belts are wound around the first A hinge shaft and the second A hinge shaft respectively at a certain interval and change the winding directions of each other.

[0007] In addition, the opening and closing device of the present application further comprises a friction torque generation mechanism, which is disposed adjacent to the first sliding mechanism and the second sliding mechanism, and comprises a first C hinge shaft, which is assembled to the first assembly base to be rotatable and is linked with the first B hinge shaft; a second C hinge shaft, which is assembled to the second assembly base to be rotatable and is linked with the second B hinge shaft; a connecting member, which links the first C hinge shaft and the second C hinge shaft with each other; a first friction torque generation part, which is composed of a fixed screw, a friction washer, and a flat spring assembled on the first C hinge shaft; and a second friction torque generation part, which is composed of a fixed screw, a friction washer, and a flat spring assembled on the second C hinge shaft.

[0008] Next, in the opening and closing device of the present application, the first housing and the second housing are assembled to the first assembly base and the second assembly base to be slidable.

[0009] Then, in the opening and closing device of the present application, a tension coil spring is stretched between either or both of the first housing and the second housing and either or both of the first assembly base and the second assembly base.

[0010] Further, in the opening and closing device of the present application, first and second chain structure members are respectively provided between the sliding members of the first sliding mechanism and the second sliding mechanism.

[0011] Furthermore, in the opening and closing device of the present application, the first housing and the second housing can drive the action mechanism inside the first housing and the second housing by the actions of the first sliding mechanism and the second sliding mechanism when the first housing and the second housing are opened and closed.

[0012] The terminal device of the present application uses the opening and closing device as described above.

[0013] According to the present application, if the opening and closing operation is performed on either the first housing or the second housing, either or both of the first housing and the second housing can slide relative to either or both of the first housing and the second housing, so that the soft display panel can be extended during the opening operation of the first housing and the second housing, effectively preventing the soft display panel from being wrinkled and preventing interference of the respective connecting end portions of the first housing and the second housing, and further regulating rotation above a specific angle.

[0014] According to the present application, if the opening and closing operation is performed on either the first housing or the second housing, the opening and closing operation can be transmitted to the other of the first housing and the second housing through the synchronous rotation mechanism, so that the opening and closing operation can be performed simultaneously.

[0015] According to the present application, the first housing and the second housing can generate a frictional torque during the opening and closing operation through the frictional torque generation mechanism, so that not only a good operation feeling can be given to the operator, but also the first housing and the second housing can be stably stopped and held at any opening and closing angle.

[0016] According to the present application, the first housing and the second housing are slidably assembled to the first assembly base and the second assembly base, and can perform sliding operation through the first sliding mechanism and the second sliding mechanism, respectively.

[0017] According to the present application, during the opening and closing operation of the first housing and the second housing, the soft display panel provided on the respective surfaces of the first housing and the second housing can be prevented from being wrinkled.

[0018] According to the present application, the central portion of the hinge mechanism is rotatably assembled between a pair of sliding members and is formed of a chain structure, one end portion of which is engaged with one of the sliding members and the other end portion of which is engaged with the other of the sliding members, so that regardless of any opening and closing operation of the opening and closing device, the one sliding member is driven to advance by the driving belt wound around the hinge shaft, and the chain structure assembled between the pair of sliding members and rotatable is driven to retreat by rotation, thereby winding back the other driving belt. In this way, regardless of any opening and closing operation of the opening and closing device, the driving belt can be prevented from being twisted or bent, so that a good opening and closing operation can be performed.

[0019] According to the present application, the internal mechanism provided in the respective interiors of the first housing and the second housing can be driven through the first sliding mechanism and the second sliding mechanism.

[0020] According to the present application, a terminal machine having the above opening and closing device can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1The following is a schematic diagram of a laptop computer, one of the terminal machines using the opening and closing device of the present invention: (a) is a perspective view of the terminal machine in the open state, (b) is a perspective view of the terminal machine in the 90° open state, and (c) is a perspective view of the terminal machine in the 180° open state.

[0022] Figure 2 This is a partially exploded perspective view of a terminal machine using the opening and closing device of the present invention.

[0023] Figure 3 The diagram illustrates the state of the opening and closing device of the present invention assembled into the first housing and the second housing. (a) is a perspective view of the device, and (b) is a perspective view showing the state of the assembled part.

[0024] Figure 4 It is along Figure 3 A cross-sectional view of line segment AA in the middle, with the internal mechanism of the opening and closing device omitted in the figure.

[0025] Figure 5 This is a perspective view of the opening and closing device of the present invention in an open state after being rotated 180°.

[0026] Figure 6 Is Figure 5 The image shown is a slanted view of the view after removing the cover.

[0027] Figure 7 yes Figure 5 The exploded 3D view of the state shown.

[0028] Figure 8 yes Figure 5 A perspective view of the first assembly base and the second assembly base in the opening and closing device shown.

[0029] Figure 9 yes Figure 5 The schematic diagram of the sliding component of the opening and closing device shown is as follows: (a) is its perspective view, (b) is its side view, and (c) is its cross-sectional view.

[0030] Figure 10 yes Figure 5 The schematic diagram of the adjusting component of the opening and closing device is shown in (a) as a perspective view and (b) as a cross-sectional view.

[0031] Figure 11 yes Figure 5 An exploded perspective view of the main parts of the synchronous rotation mechanism of the opening and closing device shown.

[0032] Figure 12 It is an exploded 3D diagram used for illustration. Figure 5 The sliding mechanism of the opening and closing device shown has the following structures: the first hinge shaft B and the second hinge shaft B.

[0033] Figure 13is an enlarged perspective view of the friction torque generation mechanism.

[0034] Figure 14 is Figure 5 is a schematic view of the first connecting member of the opening and closing device, (a) is a perspective view thereof, (b) is a plan view thereof, and (c) is a front view thereof.

[0035] Figure 15 is Figure 5 is a perspective view of the first A assembly member and the second A assembly member of the opening and closing device.

[0036] Figure 16 is Figure 5 is a schematic view of each drive belt of the opening and closing device, (a) is a planar development of the synchronous rotation drive belt, and (b) is a planar development of the sliding mechanism drive belt.

[0037] Figure 17 is Figure 5 is a schematic view of the actuating member of the sliding mechanism of the opening and closing device, (a) is a plan view of the long actuating member, and (b) is a plan view of the short actuating member.

[0038] Figure 18 is Figure 5 is a perspective view of the chain structure member of the opening and closing device.

[0039] Figure 19 is Figure 5 is a cross-sectional view of the opening and closing device in the closed state, (a) is a cross-sectional view of the state in which the first sliding member and the third sliding member are divided, and (b) is a cross-sectional view of the state in which the second sliding member and the fourth sliding member are divided.

[0040] Figure 20 is Figure 5 is a cross-sectional view of the opening and closing device in the 180° open state, (a) is a cross-sectional view of the state in which the first sliding member and the third sliding member are divided, and (b) is a cross-sectional view of the state in which the second sliding member and the fourth sliding member are divided.

[0041] Figure 21 is a schematic view of the opening and closing device and the terminal machine of Embodiment 2, (a) is a perspective view of the terminal machine in the closed state, (b) is a perspective view of the terminal machine opened to 90°, and (c) is a perspective view of the terminal machine opened to 180°.

[0042] Figure 22 is Figure 21 is an enlarged cross-sectional explanatory view of the terminal machine and the opening and closing device divided by the sliding members, (a) is a schematic view of the first housing and the second housing in the closed state, and (b) is a schematic view of the opening to 90°.

[0043] Figure 23 is Figure 21 Fig. 6 is an enlarged sectional view of the terminal machine and the opening and closing device shown in Fig. 5, with the sliding member divided, (a) is a schematic view of the opening to a 180° state, and (b) is a schematic view of the opening to a 360° state. DETAILED DESCRIPTION

[0044] The following describes an embodiment of a notebook computer, which is an example of a terminal machine to which the present application is applied, with reference to the drawings, but the terminal machine to which the present application is implemented is not limited to a notebook computer, and includes a PDA and the like, represented by a laptop computer, an electronic dictionary, and the like. In addition, the present application is also applicable to various machines or containers that use a synchronous rotation mechanism, a sliding mechanism, or a frictional torque generation mechanism when opening and closing a first housing and a second housing.

[0045] As shown in (a), (b), and (c), the terminal machine 1, which is represented by a notebook computer in this embodiment 1, is connected to the first housing 2 and the second housing 3 in a relative manner via the opening and closing devices 4, 4 of the present application provided at both left and right portions of the connecting portion of the first housing 2 and the second housing 3, and is opened and closed from 0° to about 180°. Figure 1 The display panel portion 5 is constituted by a single piece of a soft display panel 5a that is foldable in this embodiment 1, and covers each of the two surfaces of the first housing 2 and the second housing 3 by a buffer sheet 5b. In addition, in this embodiment, the opening and closing devices 4, 4 are provided on the terminal machine 1 (notebook computer) in the same configuration on the left and right sides. Since the configurations of the opening and closing devices 4, 4 are the same, the following description is made with respect to the opening and closing device 4 on the right side of (a), and the configuration of the opening and closing device on the left side is omitted.

[0046] Figure 1 As shown in (a), (b), and (c), the terminal machine 1, which is represented by a notebook computer in this embodiment 1, is connected to the first housing 2 and the second housing 3 in a relative manner via the opening and closing devices 4, 4 of the present application provided at both left and right portions of the connecting portion of the first housing 2 and the second housing 3, and is opened and closed from 0° to about 180°.

[0047] As shown in particular in (a), the opening and closing device 4 is shown in a state in which the first assembly base 7 and the second assembly base 8 are each turned upside down in order to illustrate the internal mechanism. As illustrated, the opening and closing device 4 has the first assembly base 7 assembled on the first housing 2 side, and the second assembly base 8 assembled on the second housing 3 side. The first assembly base 7 and the second assembly base 8 are the same configuration, and as shown in particular in (a), are in the shape of a planar rectangle, and have wall portions 7a, 7a, 7a, 8a, 8a, 8a provided on three sides other than the side of the assembly of a plurality of hinge shafts described below, and receiving portions 7b and 8b in which the internal mechanism, such as the first sliding mechanism B1 and the second sliding mechanism B2 described below, is accommodated, provided on the inner sides. Figures 1 to 7 Figure 8 The receiving portions 7b and 8b, as shown in particular in (a) and (b), are in the shape of a planar rectangle, and have wall portions 7a, 7a, 7a, 8a, 8a, 8a provided on three sides other than the side of the assembly of a plurality of hinge shafts described below, and receiving portions 7b and 8b in which the internal mechanism, such as the first sliding mechanism B1 and the second sliding mechanism B2 described below, is accommodated, provided on the inner sides.

[0048] The receiving portions 7b and 8b, as shown in particular in (a) and (b), are in the shape of a planar rectangle, and have wall portions 7a, 7a, 7a, 8a, 8a, 8a provided on three sides other than the side of the assembly of a plurality of hinge shafts described below, and receiving portions 7b and 8b in which the internal mechanism, such as the first sliding mechanism B1 and the second sliding mechanism B2 described below, is accommodated, provided on the inner sides. Figure 6 Figure 7 ​​​As shown, the central partition walls 7c, 8c provided at about the central portions, the sliding guide grooves 6a, 6b and the sliding guide grooves 9a, 9b provided on the assembly table portions 7t, 7t, 7t, 7t and the assembly table portions 8t, 8t, 8t, 8t provided on both sides of the central partition walls 7c, 8c are partitioned by each pair of side partition members 7d, 7e, 8d, 8e assembled by assembly screws. In addition, between each bottom portion of the side partition members 7d, 7e, 8d, 8e and the receiving portions 7b and the receiving portions 8b, guide grooves are formed for the first action members 26a and the second action members 26b, and the third action members 27a and the fourth action members 27b to be inserted as described later.

[0049] Further, on the first assembly base 7 and the second assembly base 8, on the side edges where the wall portions 7a and 8a are not provided, assembly portions 7h, 7i, 7j, 7k, 7m and assembly portions 8h, 8i, 8j, 8k, 8m are provided opposite to each other, and shaft support portions 7z, 8z are provided to rotatably support the first chain link mechanism B3 and the second chain link mechanism B4 of the first chain link member 70 and the second chain link member 71 as described later.

[0050] On the side edges of the wall portions 7a, 7a, 7a and 8a, 8a, 8a of the peripheral walls of the first assembly base 7 and the second assembly base 8 where the wall portions 7a and 8a are not provided, as shown, Figures 5 to 7 As shown, the first A hinge shaft 10 and the second A hinge shaft 13 constituting the synchronous rotation mechanism A and the first B hinge shaft 11 and the second B hinge shaft 14 constituting the sliding mechanism B and the first C hinge shaft 12 and the second C hinge shaft 15 constituting the friction torque generation mechanism C are respectively common to each other in the same axis and parallel to the same direction, and can be rotated simultaneously.

[0051] The first A hinge shaft 10 and the second A hinge shaft 13 of the synchronous rotation mechanism A are of the same structure. As shown, Figure 11 The first A hinge shaft 10 and the second A hinge shaft 13 are both deformed shaft portions 10a and 13a, and rotatably pass through the circular bearing holes 46a, 46a of the second connecting member 46 provided at the central portions. The first B hinge shaft 11 and the second B hinge shaft 14 of the sliding mechanism B are of the same structure, as shown, Figure 12 A flange portion 11a, 14a is formed at about the central portion, and deformed shaft portions 11b, 11b and 14b, 14b are formed at both sides. Further, the first C hinge shaft 12 and the second C hinge shaft 15 of the friction torque generation mechanism C are of the same structure.

[0052] The first A hinge shaft 10 and the second A hinge shaft 13 of the synchronous rotation mechanism A as described above are as shown, Figure 7 and Figure 8As shown, on the assembly portions 7h and 8h provided at the right end portions of the first and second assembly bases 7 and 8, the deformed shaft portions 10a and 13a are rotatably shafted on the circular bearing holes 16a and 17a of the first and second A assembly members 16 and 17, which have the assembly pieces 16c and 17c assembled thereon. Further, the other end portions of the first and second A hinge shafts 10 and 13 are disposed inward of the first and second A assembly members 16 and 17, and are engaged with the deformed bearing holes 18a and 19a provided on the first and second B assembly members 18 and 19 assembled on the assembly portions 7i and 8i of the first and second assembly bases 7 and 8, to rotate simultaneously in conjunction with the opening and closing operation of the first and second assembly bases 7 and 8.

[0053] Next, the first and second B hinge shafts 11 and 14 of the sliding mechanism B are assembled on the assembly portions 7j and 8j provided at about the middle portions of the first and second assembly bases 7 and 8, and are rotatably shafted on the circular bearing holes 20a and 21a provided on the first and second C assembly members 20 and 21, and are insertedly engaged with the circular bearing holes 48a and 48a provided on the fourth connecting members 48 engaged with the other end portions of the first and second A hinge shafts 10 and 13. Figures 6 to 8

[0054] Further, the deformed bearing holes 22a and 23a provided on the first and second D assembly members 22 and 23 assembled on the assembly portions 7k and 8k are engaged with the end portions of the first and second C hinge shafts 12 and 15, and the other end portions of the first and second C hinge shafts 12 and 15 are rotatably shafted on the circular bearing holes 24a and 25a of the first and second E assembly members 24 and 25 assembled on the assembly portions 7m and 8m.

[0055] With the above configuration, the first A, B and C hinge shafts 10, 11 and 12, and the second A, B and C hinge shafts 13, 14 and 15, rotate integrally as one hinge simultaneously with the opening and closing operation of the first and second assembly bases 7 and 8 and the first and second housings 2 and 3. Basically, the configuration is not limited to the embodiment, and can be other configurations, as will be described later, and can be unnecessary when one of the synchronous rotation mechanism A, the sliding mechanism B or the frictional torque generating mechanism C assembled on each hinge shaft is omitted.

[0056] As shown in Figs. 1 and 2, the first and second assembly bases 7 and 8 are provided with guide rails 7n, 7n, 8n and 8n on the respective two side portions, and the respective guide rails 7n, 7n, 8n and 8n are particularly provided with a plurality of guide grooves 7n' and 8n' for guiding the first and second A hinge shafts 10 and 13, and a plurality of guide grooves 7n" and 8n" for guiding the first and second B hinge shafts 11 and 14. Figure 3 Figure 4 Further, as shown in Figs. 1 and 2, the first and second assembly bases 7 and 8 are provided with guide rails 7n, 7n, 8n and 8n on the respective two side portions, and the respective guide rails 7n, 7n, 8n and 8n are particularly provided with a plurality of guide grooves 7n' and 8n' for guiding the first and second A hinge shafts 10 and 13, and a plurality of guide grooves 7n" and 8n" for guiding the first and second B hinge shafts 11 and 14.​​Figure 3 and Figure 4 As shown, guide grooves 2b, 2b, 3b, 3b are provided on both sides of the first assembly base 7 and the second assembly base 8 to accommodate the first assembly base receiving portion 2a and the second assembly base receiving portion 3a respectively provided on the first housing 2 and the second housing 3. The first housing 2 and the second housing 3 are assembled to the first assembly base 7 and the second assembly base 8 through the engagement of each guide rail 7n, 7n, 8n, 8n and each guide groove 2b, 2b, 3b, 3b, and the first housing 2 and the second housing 3 are slidable relative to the first assembly base 7 and the second assembly base 8 of the opening and closing device 4.

[0057] In addition, there is a special connection between the first assembly base 7 and the second assembly base 8, and between the first housing 2 and the second housing 3. Figure 1 and Figure 3 As shown, a plurality of tension helical springs 2d, 2d... and tension helical springs 3d, 3d... are provided, and the first housing 2 and the second housing 3 frequently slide towards the first assembly base 7 and the second assembly base 8 to enhance their sliding.

[0058] As described above, the first A hinge shaft 10 and the second A hinge shaft 13 are provided with the synchronous rotation mechanism A (described later), the first B hinge shaft 11 and the second B hinge shaft 14 are provided with the sliding mechanism B, and the first C hinge shaft 12 and the second C hinge shaft 15 are provided with the friction torque generating mechanism C.

[0059] The first A assembly component 16, the first B assembly component 18, the first C assembly component 20, the first D assembly component 22, and the first E assembly component 24, as well as the second A assembly component 17, the second B assembly component 19, the second C assembly component 21, the second D assembly component 23, and the second E assembly component 25, are all identical except for the shape of the bearing holes, which may be circular or deformed. The first A assembly component 16 and the second A assembly component 17 are used as representative examples, particularly... Figure 15 As shown, the slightly rectangular body portions 16b and 17b have circular bearing holes 16a and 17a on one side, and right-angled bent assembly pieces 16c and 17c on the other side. Assembly holes 16d and 17d are formed on the assembly pieces 16c and 17c. The first A assembly member 16 and the second A assembly member 17 overlap the assembly pieces 16c and 17c on the assembly portions 7h and 8h, which have assembly holes 7o and 8o at one end of the first assembly base 7 and the second assembly base 8, and lock them with assembly screws.

[0060] In the other first B assembly member 18, first C assembly member 20, first D assembly member 22, and first E assembly member 24, second B assembly member 19, second C assembly member 21, second D assembly member 23, and second E assembly member 25, the bearing holes 18a, 22a, 19a, 23a of the first B assembly member 18, first D assembly member 22, and second B assembly member 19, second D assembly member 23 are deformed bearing holes, and the bearing holes 20a, 24a, and 21a, 25a of the other first C assembly member 20, first E assembly member 24, and second C assembly member 21, second E assembly member 25 are circular bearing holes. Also, the other configuration is that only the locking sections 16e and 17e are provided on the first A assembly member 16 and second A assembly member 17, and the other configurations are the same, as shown in Figure 7 and Figure 8 indicated, are assembled in the assembly sections 7i, 8i, 7j, 8j, and assembly sections 7k, 8k, 7m, 8m provided in the first assembly base 7 and second assembly base 8. In the figure, as shown particularly in Figure 7 , only the first A assembly member 16 and second A assembly member 17 and first E assembly member 24 and second E assembly member 25 are shown independently, and the others are shown in a state of being assembled in the assembly sections.

[0061] As described above, the assembly sections of the assembly members are assembled in order from the assembly sections 7h, 8h of the first A assembly member 16 and second A assembly member 17, which are provided at a specific interval apart from each other in the first assembly base 7 and second assembly base 8, as indicated in Figure 7 and Figure 8 . The assembly sections 7h to 8m and 8h to 8m are respectively provided with assembly holes 7o, 7p, 7q, 7r, 7s, and 8o, 8p, 8q, 8r, 8s. The assembly pieces (only 16c, 17c, 24c, 25c are shown in the figure) provided in the first B assembly member 18 to first E assembly member 24 and second B assembly member 19 to second E assembly member 25 overlap the assembly sections 7i, 8i, 7j, 8j, 7k, 8k, 7m, 8m and are respectively fastened with locking screws.

[0062] The first A hinge shaft 10 and second A hinge shaft 13 constituting the synchronous rotation mechanism A rotatably support one end portion side of each deformed shaft portion 10a, 13a in the circular bearing holes 16a, 17a provided in the first A assembly member 16 and second A assembly member 17, while engaging the other end portion side in the deformed bearing holes 18a, 19a of the first B assembly member 18 and second B assembly member 19.

[0063] Secondly, one end of the first A hinge shaft 10 is rotatably assembled with a circular bearing hole 16a provided in the first A assembly member 16, and the other end engages with a deformable bearing hole 18a provided in the first B assembly member 18. One end of the first B hinge shaft 11 is rotatably supported with a circular bearing hole 20a provided in the first C assembly member 20, and the other end engages with a deformable hole (not shown) provided in the first connecting tube portion 61. One end of the first C hinge shaft 12 engages with a deformable bearing hole 22a provided in the first D assembly member 22 and also engages with a deformable hole (not shown) provided in the first connecting tube portion 61, and the other end is rotatably supported with a circular bearing hole 24a provided in the first E assembly member 24.

[0064] as Figures 6 to 7 As shown, one end of the second A hinge shaft 13 is rotatably assembled with respect to a circular bearing hole 17a provided in the second A assembly member 17, and the other end engages with a deformable bearing hole 19a provided in the second B assembly member 19. One end of the second B hinge shaft 14 is rotatably supported with respect to a circular bearing hole 21a provided in the second C assembly member 21, and the other end engages with a deformable hole (not shown) provided in the second connecting tube portion 63. One end of the second C hinge shaft 15 engages with a deformable bearing hole 23a provided in the second D assembly member 23 and also engages with a deformable hole (not shown) provided in the second connecting tube portion 63, and the other end is rotatably supported with respect to a circular bearing hole 25a provided in the second E assembly member 25.

[0065] Therefore, when the first housing 2 and the second housing 3 are opened from the open state, the first A hinge shaft 10, the first B hinge shaft 11, and the first C hinge shaft 12, which are assembled on the first B assembly member 18 and the first D assembly member 22 and rotate simultaneously, rotate in the same direction as a whole. The second A hinge shaft 13, the second B hinge shaft 14, and the second C hinge shaft 15, which are assembled on the second B assembly member 19 and the second D assembly member 23, rotate in the same direction as a whole. At this time, the rotation of the first A hinge shaft 10 and the second A hinge shaft 13 is synchronized via the synchronous rotation mechanism A.

[0066] And, especially Figures 5 to 7As shown, symbol 43 is a shielding member for preventing foreign matter from entering the interior of the opening and closing device 4 and for shielding the line of sight from the outside, which is assembled between each first B hinge shaft 11 and second B hinge shaft 14 and each first C hinge shaft 12 and second C hinge shaft 15. Screw holes 43a, 43b, 43c, 43d provided thereon are assembled with assembly holes 52c, 49c provided on the eighth connecting member 52 and the fifth connecting member 49, which connect each first C hinge shaft 12 and second C hinge shaft 15 of the frictional torque generation mechanism C, and assembly holes 48c, 47c provided on the fourth connecting member 48 and the third connecting member 47, by means of assembly screws not shown in the drawing.

[0067] The synchronous rotation mechanism A is as shown in Figure 11 As shown, each of the first A hinge shaft 10 and the second A hinge shaft 13 has the second connecting member 46 sandwiched therebetween in the axial direction and is assembled with the first pulley (pulley wheel) 53 and the second pulley 54 and the third pulley 55 and the fourth pulley 56 of the deformed shaft portions 10a, 10a and 13a, 13a, respectively, both ends of which are wound with the first synchronous rotation drive belt 28 and the second synchronous rotation drive belt 29 in opposite directions, respectively. The first pulley 53 and the second pulley 54 and the third pulley 55 and the fourth pulley 56 are each composed of three first a small pulley 53a, first b small pulley 53b, first c small pulley 53c, and second a small pulley 54a, second b small pulley 54b, second c small pulley 54c, and third a small pulley 55a, third b small pulley 55b, third c small pulley 55c, and fourth a small pulley 56a, fourth b small pulley 56b, fourth c small pulley 56c of the same diameter, which are overlapped in the axial direction, and each of the outer peripheries of the first b small pulley 53b and the second b small pulley 54b and the third b small pulley 55b and the fourth b small pulley 56b is provided with a locking piece 53d, 54d and 55d, 56d.

[0068] Each of the first synchronous rotation drive belt 28 and the second synchronous rotation drive belt 29 is a thin sheet having a thickness of about 0.3 mm and flexibility, such as a metal thin sheet of stainless steel, and an expanded view thereof is as shown in Figure 16 (a). As shown, each of both end portions thereof is provided with a locking hole 28a, 28b and a locking hole 29a, 29b in the form of a planar rectangle, and the central portion is provided with an elongated hole 28c and 29c in the long direction. First, the first synchronous rotation drive belt 28 is locked to the locking pieces 53d, 55d provided on the first b small pulley 53b and the third b small pulley 55b by means of the locking holes 28a, 28b thereof, and is wound around the first pulley 53 and the third pulley 55 by changing the winding direction of both end portions thereof, respectively. The first b small pulley 53b and the third b small pulley 55b constitute the first pulley 53 assembled on the first A hinge shaft 10 and the third pulley 55 assembled on the second A hinge shaft 13, respectively.

[0069] Secondly, the second synchronous rotation drive belt 29 is locked to locking plates 54d and 56d respectively provided on the second b small pulley 54b and the fourth b small pulley 56b through its locking holes 29a and 29b, and is wound in the opposite direction to the first synchronous rotation drive belt 28. The second b small pulley 54b and the fourth b small pulley 56b respectively constitute the second pulley 54 assembled on the first A hinge shaft 10 and the fourth pulley 56 assembled on the second A hinge shaft 13. In embodiment 1, the first A hinge shaft 10 and the second A hinge shaft 13 are connected by four connecting members: the first connecting member 45, the second connecting member 46, the third connecting member 47 and the fourth connecting member 48, and can rotate relative to each other. One side of each of their two ends is supported by circular bearing holes 16a and 17a for rotation, while the other side is locked in deformable bearing holes 18a and 19a. Circular bearing holes 16a and 17a are respectively provided on the first A assembly member 16 provided on the first assembly base 7 and the second A assembly member 17 provided on the second assembly base 8; deformable bearing holes 18a and 19a are respectively provided on the first B assembly member 18 and the second B assembly member 19. With this structure, the first A hinge shaft 10 and the second A hinge shaft 13 can rotate simultaneously with the first assembly base 7 and the second assembly base 8 as the first housing 2 and the second housing 3 open and close.

[0070] Furthermore, regarding the sliding mechanism B, it is explained that this sliding mechanism B is composed of a first sliding mechanism B1 on the first assembly base 7 side and a second sliding mechanism B2 on the second assembly base 8 side. The first sliding mechanism B1 and the second sliding mechanism B2 have the same structure. Therefore, in this specification, when referring to the sliding mechanism, it means both the first sliding mechanism B1 and the second sliding mechanism B2.

[0071] First, let's start with the first sliding mechanism B1, as follows: Figures 5 to 7 and Figure 12 As shown, the first sliding mechanism B1 is composed of a first B hinge shaft 11, a first sliding member 34 and a second sliding member 35, a first sliding mechanism drive belt 30 and a second sliding mechanism drive belt 31. The first sliding member 34 and the second sliding member 35 slide in the radial direction of the first B hinge shaft 11 within the sliding guide grooves 6a and 6b separated by the central partition wall 7c and the side partition members 7d and 7e on the first assembly base 7. One end of the first sliding mechanism drive belt 30 and the second sliding mechanism drive belt 31 are wound around the fifth pulley 57 and the sixth pulley 58 in opposite winding directions, respectively, and the other end is connected to the first sliding member 34 and the second sliding member 35. The fifth pulley 57 and the sixth pulley 58 are assembled on the deformable shaft portions 11b and 11b, which sandwich the flange portion 11a of the first B hinge shaft 11.

[0072] The second sliding mechanism B2 is similar.Figures 5 to 7 and Figure 12 As shown, the structure comprises a second B hinge shaft 14, a third sliding member 36 and a fourth sliding member 37, a third sliding mechanism drive belt 32 and a fourth sliding mechanism drive belt 33. The third sliding member 36 and the fourth sliding member 37 slide in the radial direction of the second B hinge shaft 14 within the sliding guide grooves 9a and 9b separated by the central partition wall 8c and the side partition members 8d and 8e on the second assembly base 8. One end of the third sliding mechanism drive belt 32 and the fourth sliding mechanism drive belt 33 is wound around the seventh pulley 59 and the eighth pulley 60 in opposite winding directions, respectively, and the other end is connected to the third sliding member 36 and the fourth sliding member 37. The seventh pulley 59 and the eighth pulley 60 are assembled on the deformable shaft portions 14b and 14b, which sandwich the flange portion 14a of the second B hinge shaft 14.

[0073] More specifically, the first B hinge axis 11 and the second B hinge axis 14 have the same structure, such as... Figure 12 As shown, the deformable shaft portions 11b, 11b and 14b, 14b provided between the flange portion 11a and the flange portion 14a are used to assemble the fifth pulley 57, the sixth pulley 58, the seventh pulley 59 and the eighth pulley 60. The fifth pulley 57, the sixth pulley 58, the seventh pulley 59 and the eighth pulley 60 each have three thin pulleys of the same diameter. The fifth a small pulley 57a, the fifth b small pulley 57b, the fifth c small pulley 57c, the sixth a small pulley 58a, the sixth b small pulley 58b, the sixth c small pulley 58c, the seventh a small pulley 59a, the seventh b small pulley 59b, the seventh c small pulley 59c, and the eighth a small pulley 60a, the eighth b small pulley 60b, and the eighth c small pulley 60c overlap, and locking pieces 57d, 58d, 59d, and 60d are respectively provided on the fifth b small pulley 57b, the sixth b small pulley 58b, the seventh b small pulley 59b, and the eighth b small pulley 60b in the center.

[0074] The first sliding mechanism drive belt 30 to the fourth sliding mechanism drive belt 33 are, for example, stainless steel metal components, sheet-shaped with a thickness of approximately 0.3 mm, constructed of the same material and with the same structure. Furthermore, the first synchronous rotation drive belt 28 and the second synchronous rotation drive belt 29 have the same structure. Therefore, Figure 16 (b) The unfolded diagram of one of them is used as a representative, and the other parts are given symbols respectively. As shown in the figure, the two ends are respectively provided with planar rectangular locking holes 30a, 30b, 31a, 31b, 32a, 32b, 33a, 33b, and the long side of each central part is provided with long holes 30c, 31c, 32c, 33c.

[0075] The first slide member 34, the second slide member 35, the third slide member 36, and the fourth slide member 37 are all of the same configuration. The first slide member 34 is shown as representative in Figure 9 , and the other slide members are shown with the symbol (). As can be seen from the figure, the first slide member 34 to the fourth slide member 37 are all of a planar slightly rectangular shape, and are composed of a thick portion 34a, 35a, 36a, 37a and a thin portion 34b, 35b, 36b, 37b. At the front end of the thin portion 34b, 35b, 36b, 37b, a chain member engaging hole 34c, 35c, 36c, 37c of the first chain link mechanism B3 first chain member 70 and the second chain link mechanism B4 second chain member 71 is provided in a direction orthogonal to the direction of elongation, and at the opposite side of the thick portion 34a, 35a, 36a, 37a, a drive belt assembly recess 34d, 35d, 36d, 37d is provided. In addition, the underside of the thin portion 34b, 35b, 36b, 37b between the drive belt assembly recess 34d, 35d, 36d, 37d and the chain member engaging hole 34c, 35c, 36c, 37c is provided with an assembly shaft portion 34e, 35e, 36e, 37e. The drive belt assembly recess 34d, 35d, 36d, 37d is configured to incline inwardly of a drive belt assembly portion 34f, 35f, 36f, 37f, and the central portion of the drive belt assembly portion 34f, 35f, 36f, 37f is provided with an assembly screw hole 34g, 35g, 36g, 37g. In addition, the front portion and the rear portion of the drive belt assembly portion 34f, 35f, 36f, 37f are provided with a front side gap 34h, 35h, 36h, 37h and a rear side gap 34i, 35i, 36i, 37i through which the first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 33 pass. In addition, the front side gap 34h, 35h, 36h, 37h is formed between the front wall portion 34k, 35k, 36k, 37k and the drive belt assembly portion 34f, 35f, 36f, 37f.

[0076] As shown in Figure 5 and Figure 7 , the first chain link mechanism side cover 97 and the second chain link mechanism side cover 98 that cover the upper surface of the first chain link mechanism B3 and the second chain link mechanism B4 are assembled to the assembly table portion 7u, 7u and 8u, 8u provided in the first assembly base 7 and the second assembly base 8, and cover the upper surface of the first chain link mechanism B3 and the second chain link mechanism B4, respectively.

[0077] Each of the first A adjustment member 39, the first B adjustment member 40, the second A adjustment member 41, and the second B adjustment member 42 is of the same configuration, and in particular as shown in Figure 10As shown, one end portion side has locking protrusions 39a, 40a, 41a, 42a, and the central portion is provided with guide long holes 39b, 40b, 41b, 42b.

[0078] In each of the first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 33, the first slide mechanism drive belt 30 and the second slide mechanism drive belt 31 are particularly as shown Figures 5 to 7 and Figure 12 and Figure 20 As shown, each one end portion side is assembled in the fifth pulley 57 and the sixth pulley 58 of the first B hinge shaft 11, the former is wound from the lower side, and the latter is wound from the upper side, and the locking protrusions 57d, 58d provided on the fifth b small pulley 57b and the sixth b small pulley 58b are engaged with the locking holes 30a, 31a and wound. As shown Figure 20 As shown, in each of the other end portions of the first slide mechanism drive belt 30 and the second slide mechanism drive belt 31, the former is guided to the drive belt assembly portion 34f through the lower side of the front wall portion 34k of the first slide member 34, at which time the locking protrusions 39a provided on the first A adjusting member 39 are inserted into the locking hole 30a of the front end portion and assembled by locking with the adjusting screw 38a. The latter is guided to the drive belt assembly portion 35f through the upper side of the front wall portion 35k of the second slide member 35, at which time the locking protrusions 40a provided on the first B adjusting member 40 are inserted into the locking hole 31a of the front end portion and assembled by locking with the adjusting screw 38b. Therefore, by sliding the first A adjusting member 39 and the first B adjusting member 40, the tension thereof can be freely adjusted by locking the adjusting screws 38a, 38b.

[0079] The one end portion side of the third slide mechanism drive belt 32 and the fourth slide mechanism drive belt 33 is assembled in the seventh pulley 59 and the eighth pulley 60 of the second B hinge shaft 14, and the seventh b small pulley 59b and the eighth b small pulley 60b, the former is wound from the lower side, and the latter is wound from the upper side, and the locking protrusions 59d and 60d provided on the locking holes 32a, 33a on the locking protrusions 59d and 60d are engaged and wound. As shown Figure 20 As shown, in each of the other end portions of the third slide mechanism drive belt 32 and the fourth slide mechanism drive belt 33, the former is guided to the drive belt assembly portion 36f through the lower side of the front wall portion 36k of the third slide member 36, at which time the locking protrusions 41a provided on the second A adjusting member 41 are inserted into the locking hole 32b of the front end portion and assembled by locking with the adjusting screw 38c. The latter is guided to the drive belt assembly portion 37f through the front wall portion 37k of the second B slide member 37, at which time the locking protrusions 42a provided on the second B adjusting member 42 are inserted into the locking hole 33b of the front end portion and assembled by locking with the adjusting screw 38d. Therefore, by sliding the second A adjusting member 41 and the second B adjusting member 42, the tension thereof can be freely adjusted by locking the adjusting screws 38c, 38d.

[0080] The first A hinge shaft 10 and the second A hinge shaft 13 are provided with a brake mechanism D that regulates the rotation angle of each, as shown particularly in Figure 6 The brake mechanism D is composed of a first brake mechanism Dl and a second brake mechanism D2.

[0081] First, the first brake mechanism Dl is composed of the assembly piece portion 45d provided in the first connecting member 45, and a lock portion 16e provided in the first A assembly member 16 that rotatably supports the first A hinge shaft 10 assembled to the first assembly base 7, as shown particularly in Figures 5 to 7 The second brake mechanism D2 is composed of the assembly piece portion 45d provided in the first connecting member 45, and a lock portion 17e provided in the second A assembly member 17 that rotatably supports the second A hinge shaft 13 assembled to the second assembly base 8. The first assembly base 7 and the second assembly base 8 are rotated by 90° at a time while opening and closing the first housing 2 and the second housing 3, and the lock portion 16e of the first A assembly member 16 and the lock portion 17e of the second A assembly member 17 abut against the assembly piece portion 45d of the first connecting member 45 to regulate the rotation thereof. Further, the first connecting member 45 has a circular bearing hole 45b, 45c through which the first A hinge shaft 10 and the second A hinge shaft 13 are rotatably inserted, in the body portion 45a other than the assembly piece portion 45d, as shown particularly in Figure 14 Further, the configuration of the first brake mechanism Dl and the second brake mechanism D2 is not limited to that of Embodiment 1. As long as the opening and closing angle of the first housing 2 and the second housing 3 is regulated to be within 0° to 180°, various configurations including known technologies can be included.

[0082] As shown in Figure 18 The first chain member 70 of the first link mechanism B3 is slightly elliptical in plan view. The first chain member 70 is a member that links the actions of the first sliding member 34 and the second sliding member 35, and the second chain member 71 is a member that links the actions of the third sliding member 36 and the fourth sliding member 37. That is, as shown in Figure 8 The first chain member 70 has a rotation shaft hole 70a in which the shaft support portion 7z of the first assembly base 7 is inserted in the slightly central portion thereof, and a pair of engaging shaft portions 70b, 70c are provided at both ends thereof. As shown in Figure 6 and Figure 7As shown, the engaging shaft portions 70b, 70c engage with the chain member engaging holes 34c, 35c provided at the respective one end portions of the first sliding member 34 and the second sliding member 35. Thus, via the first chain member 70, when either of the first sliding member 34 and the second sliding member 35 is wound by the linked first sliding mechanism drive belt 30 or the second sliding mechanism drive belt 31, it is assisted to smoothly slide by the sliding action of the wound second sliding mechanism drive belt 31 or the first sliding mechanism drive belt 30.

[0083] Next, as shown in Figure 6 and Figure 7 and Figure 18 As shown, the second chain member 71 has a rotation shaft hole 71a provided at the approximate center portion thereof into which the shaft support portion 8z of the second assembly base 8 is inserted, and a pair of engaging shaft portions 71b, 71c provided at both ends thereof. The engaging shaft portions 71b, 71c engage with the chain member engaging holes 36c, 37c provided at the respective one end portions of the third sliding member 36 and the fourth sliding member 37. Thus, via the second chain member 71, when either of the third sliding member 36 and the fourth sliding member 37 is wound by the linked third sliding mechanism drive belt 32 or the fourth sliding mechanism drive belt 33, it is assisted to smoothly slide by the sliding action of the wound fourth sliding mechanism drive belt 33 or the third sliding mechanism drive belt 32.

[0084] As shown in Figure 5 and Figure 7 As shown, the upper side of the first assembly base 7 is provided with a first sliding member side cover 95 that covers the first sliding member 34 and the second sliding member 35. The first sliding member side cover 95 is a flat rectangular plate-shaped body that covers a portion of the first sliding member 34 and the second sliding member 35. The first sliding member side cover 95 is assembled with the assembly table portions 7t, 7t, 7t, 7t provided in the first assembly base 7 by screws or the like. In addition, the first sliding member side cover 95 prevents contact with the first housing 2 side when the first sliding member 34 and the second sliding member 35 slide, thereby preventing smooth sliding action.

[0085] In addition, the upper side of the receiving portion 8b of the second assembly base 8 is provided with a second sliding member side cover 96 that covers the third sliding member 36 and the fourth sliding member 37. The second sliding member side cover 96 is a flat rectangular plate-shaped body that covers a portion of the third sliding member 36 and the fourth sliding member 37. The second sliding member side cover 96 is assembled with the assembly table portions 8t, 8t, 8t, 8t provided in the second assembly base 8 by screws or the like. In addition, the second sliding member side cover 96 prevents contact with the second housing 3 side when the third sliding member 36 and the fourth sliding member 37 slide, thereby preventing smooth sliding action.

[0086] Next, the frictional torque generating mechanism C will be described. The frictional torque generating mechanism C is composed of a first frictional torque generating mechanism Cl provided on the first C hinge shaft 12 side and a second frictional torque generating mechanism C2 provided on the second C hinge shaft 15 side.

[0087] First, the first frictional torque generating mechanism Cl is composed of a first frictional torque generating portion Cl-1 and a second frictional torque generating portion Cl-2. The first frictional torque generating portion Cl-1 is provided on the first C hinge shaft 12 side, connected to a first locking screw 72 provided on the approximate center of the first C hinge shaft 12, and then composed in the order of a first frictional washer 73, a plurality of flat springs 74, a second frictional washer 75, a seventh connecting member 51, a third frictional washer 76, an eighth connecting member 52, and a fourth frictional washer 77. The second frictional torque generating portion Cl-2 is connected to a fifth frictional washer 79 provided on a second locking screw 78 provided adjacent to the first locking screw 72, and then composed in the order of a plurality of flat springs 80, a sixth frictional washer 81, a sixth connecting member 50, a seventh frictional washer 82, and a fifth connecting member 49.

[0088] Next, the second frictional torque generating mechanism C2 is provided on the second C hinge shaft 15 side, composed of a third frictional torque generating portion C2-1 and a fourth frictional torque generating portion C2-2. The third frictional torque generating portion C2-1 is connected to a third locking screw 84 provided on the approximate center of the second C hinge shaft 15, and then composed in the order of an eighth frictional washer 85, a plurality of flat springs 86, a ninth frictional washer 87, a seventh connecting member 51, a tenth frictional washer 88, an eighth connecting member 52, and an eleventh frictional washer 89. The fourth frictional torque generating portion C2-2 is connected to a twelfth frictional washer 91 provided on a fourth locking screw 90 provided adjacent to the third locking screw 84, and then composed in the order of a plurality of flat springs 92, a thirteenth frictional washer 93, a sixth connecting member 50, a fourteenth frictional washer 94, and a fifth connecting member 49.

[0089] Therefore, when the first housing 2 and the second housing 3 are opened and closed, frictional torques are generated in the first frictional torque generating portion Cl-1 and the second frictional torque generating portion Cl-2 of the first frictional torque generating mechanism Cl and the third frictional torque generating portion C2-1 and the fourth frictional torque generating portion C2-2 of the second frictional torque generating mechanism C2.

[0090] Secondly, the opening and closing device 4 is described. The user holds the terminal device 1 by hand, and either the first housing 2 or the second housing 3, or both, can be opened. For example, the user holds one side of the first housing 2 with one hand, and opens the second housing 3 with the other hand. Through this opening operation, the first A assembly member 18 rotates the first A hinge shaft 10 via the synchronous rotation mechanism A, and this rotation driving force is transmitted to the second A hinge shaft 13 via the first synchronous rotation driving belt 28 and the second synchronous rotation driving belt 29. The second assembly base 8 rotates in the opposite direction of the first assembly base 7 via this rotation driving force, and the first housing 2 and the second housing 3 are opened in opposite directions via the first B assembly member 18 and the second B assembly member 19. In this way, the first C hinge shaft 12 rotates via the first D assembly member 22, and the second C hinge shaft 15 rotates via the second D assembly member 23, along with the opening and closing operation of the first assembly base 7 and the second assembly base 8. In addition, the first B hinge shaft 11 rotates via the first connecting pipe portion 61, and the second B hinge shaft 14 rotates via the second connecting pipe portion 63. In this way, the first sliding mechanism B1 and the second sliding mechanism B2 of the sliding mechanism B, and the first frictional torque generation mechanism C1 and the second frictional torque generation mechanism C2 of the frictional torque generation mechanism C are simultaneously operated via the synchronous rotation mechanism A.

[0091] The above operation also occurs when the first housing 2 and the second housing 3 are closed, but in the opposite direction. In addition, when the first housing 2 is operated, or when the first housing 2 and the second housing 3 are simultaneously operated, the rotation driving force of the synchronous rotation mechanism A is transmitted to the first A hinge shaft 10 and the second A hinge shaft 13, the first B hinge shaft 11 and the second B hinge shaft 14, and the first C hinge shaft 12 and the second C hinge shaft 15, and the same above operation occurs as the first A hinge shaft 10 and the second A hinge shaft 13, the first B hinge shaft 11 and the second B hinge shaft 14, and the first C hinge shaft 12 and the second C hinge shaft 15 simultaneously rotate.

[0092] Alternatively, the sliding mechanism B can be operated without using the synchronous rotation mechanism B. In addition, due to the frictional torque generation mechanism C, the first housing 2 and the second housing 3 can be stopped at any angle and maintained in a stable stop state, but the sliding mechanism B can also be operated without the frictional torque generation mechanism C.

[0093] Secondly, the operation of the sliding mechanism B is described. The first sliding mechanism B1 and the second sliding mechanism B2 of the sliding mechanism B are synchronously operated by the synchronous rotation mechanism A, the first B hinge shaft 11 and the second B hinge shaft 14 are rotated in opposite directions, the first sliding member 34 and the second sliding member 35 are driven in opposite directions by the first sliding mechanism driving belt 30 and the second sliding mechanism driving belt 31, and the third sliding member 36 and the fourth sliding member 37 are slid in opposite directions by the third sliding mechanism driving belt 32 and the fourth sliding mechanism driving belt 33. At this time, even if the first sliding mechanism driving belt 30 to the fourth sliding mechanism driving belt 33 are made of thin metal, the first chain structure 70 and the second chain structure 71 of the first chain link mechanism B3 and the second chain link mechanism B4 assist the operation of any of the first sliding mechanism driving belt 30 to the fourth sliding mechanism driving belt 33 on the winding side, and assist the operation of any of the first sliding member 34 to the fourth sliding member 37 linked by the winding sliding mechanism driving belt, so as to prevent the belt from loosening and to smoothly slide.

[0094] Further, the first sliding mechanism B1 and the second sliding mechanism B2 of the sliding mechanism B of the opening and closing device 4 are engaged with the engagement shaft portions 26g and 27g of the short second actuating members 26b and the fourth actuating members 27b as shown in the engagement portions 3c (the first housing 2 side is omitted in the figure) provided on the first housing 2 and the second housing 3, and slide away from each other against the pulling force of the respective tensile coil springs 3d, 3d, … (only one of which is shown in the figure), so as to pull the flexible display panel 5a stretched across the two surfaces of the first housing 2 and the second housing 3 outward, and prevent the flexible display panel 5a from wrinkling. Figure 3

[0095] In addition, the first frictional torque generating mechanism C1 and the second frictional torque generating mechanism C2 of the frictional torque generating mechanism C are operated when the first housing 2 and the second housing 3 are opened and closed, and generate a frictional torque as described above, so as to stop and keep the first housing 2 and the second housing 3 stable at any angle, and provide a stable operation feeling.

[0096] The opening and closing angle of the opening and closing device 4 of this embodiment 1 is between 0° and 180°, and when the first housing 2 and the second housing 3 are opened to 180° every 90°, the assembled piece portion 45d of the first connecting member 45 connecting the first A hinge shaft 10 and the second A hinge shaft 13 abuts against the locking segment portions 16e and 17e provided by the first A assembled member 16 and the second A assembled member 17, so as to prevent the opening from exceeding this.

[0097] Embodiment 2 is shown in Figures 21 to 23 ​As shown, the opening and closing device of the present application and the notebook computer using the opening and closing device relate to other embodiments of terminal machines. The opening and closing device 101 relating to this embodiment 2 is omitted in the middle, but like the opening and closing device 4 shown in embodiment 1, except that the first assembly base 7 and the second assembly base 8 do not have guide rails 7n, 7n and 8n, 8n, and do not have tension coil springs 2d, 2d, …, 3d, 3d, … or a brake mechanism D, etc., other configurations such as the synchronous rotation mechanism A, the sliding mechanism B, the friction torque generation mechanism C are the same as embodiment 1.

[0098] Therefore, the first housing 2 and the second housing 3 of the opening and closing device 101 of this embodiment 2 can be opened and closed between 0° and 360°. In addition, as shown in Figures 21 to 23 Figure 22 and Figure 23 As shown, the first display panel 104 and the second display panel 105 are respectively arranged on the upper surface of the first housing 102 and the second housing 103 of the terminal machine 100. In this embodiment 2, with the opening and closing operation of the first housing 102 and the second housing 103, the inside of the first housing 102 and the second housing 103, or each action mechanism equipped on the outside but omitted in the drawing, can be made to act by the first action member 26a and the third action member 27a and the second action member 26b and the fourth action member 27b shown in particular in Figure 17 Figure 17 (a) and the other end portion side is provided with a connection long hole 26e, 27e. In addition, in the second action member 26b and the fourth action member 27b, as shown in particular in Figure 17 (b), while being provided with an axle support hole 26f, 27f, the one end portion side is provided with an action axle portion 26g, 27g, and the other end portion side is provided with a connection long hole 26h, 27h.

[0099] The present application is configured as described above, and is particularly suitable for an opening and closing device that can thin the thickness of the first housing and the second housing of a terminal machine, or an opening and closing device of a terminal machine that has a flexible display panel across both surfaces of the first housing and the second housing, or an opening and closing device that can operate the internal mechanism and the external mechanism of the first housing and the second housing and a terminal machine using the opening and closing device.​​

Claims

1. An opening and closing device, comprising: a first sliding mechanism provided on a first assembly base assembled to a first housing side; a second sliding mechanism provided on a second assembly base assembled to a second housing side; wherein, the first sliding mechanism comprises: a first B hinge shaft assembled to the first assembly base side to be rotated when the first housing is operated to open and close; a first sliding mechanism driving belt and a second sliding mechanism driving belt wound on the first B hinge shaft at intervals and changing the winding directions of the respective end portions from each other; and a first sliding member and a second sliding member assembled to the first assembly base side to be slid toward the radial direction of the first B hinge shaft and connected to the other end portion side of the first sliding mechanism driving belt and the second sliding mechanism driving belt; wherein, the second sliding mechanism comprises: a second B hinge shaft assembled to the second assembly base side, facing the first B hinge shaft and to be rotated when the second housing is operated to open and close; a third sliding mechanism driving belt and a fourth sliding mechanism driving belt wound on the second B hinge shaft at intervals and changing the winding directions of the respective end portions from each other; and a third sliding member and a fourth sliding member assembled to the second assembly base side to be slid toward the radial direction of the second B hinge shaft and connected to the other end portion side of the third sliding mechanism driving belt and the fourth sliding mechanism driving belt; a first link mechanism and a second link mechanism provided between the first sliding member and the second sliding member and between the third sliding member and the fourth sliding member, respectively; a connecting member connecting the first B hinge shaft and the second B hinge shaft in the radial direction to be rotatable relative to each other; a first A hinge shaft assembled to the first assembly base to be rotated while being connected to the first B hinge shaft; a second A hinge shaft assembled to the second assembly base to be rotated while being connected to the second B hinge shaft; and a brake mechanism provided on the first A hinge shaft and the second A hinge shaft and regulating the respective rotation angles thereof; wherein, the brake mechanism comprises: a locking section provided on a first A assembly member rotatable shaft support of the first A hinge shaft assembled on the first assembly base and a second A assembly member rotatable shaft support of the second A hinge shaft assembled on the second assembly base, respectively; and an assembly piece provided on a connecting member connecting one end side of the first A hinge shaft and the second A hinge shaft; when the first assembly base and the second assembly base are each rotated by the opening and closing operation of the first housing and the second housing, the locking sections of the first A assembly member and the second A assembly member abut against the assembly piece of the connecting member to regulate the rotation, respectively.

2. The opening and closing device according to claim 1, further comprising a synchronous rotation mechanism provided adjacent to the first sliding mechanism and the second sliding mechanism, comprising: the first A hinge shaft; the second A hinge shaft; ​ a connecting member that links the other end sides of the first A hinge shaft and the second A hinge shaft to each other in a radial direction; and first and second synchronous rotation driving belts that are wound around the first and second A hinge shafts, respectively, at intervals and change the winding directions thereof.

3. The opening and closing device according to claim 1, further comprising a friction torque generation mechanism disposed adjacent to the first and second sliding mechanisms, the friction torque generation mechanism comprising: a first C hinge shaft assembled to the first assembly base so as to be rotatable while being linked to the first B hinge shaft; a second C hinge shaft assembled to the second assembly base so as to be rotatable while being linked to the second B hinge shaft; a connecting member that links the first and second C hinge shafts to each other; a first friction torque generation portion composed of a fixed screw, a friction washer, and a flat spring assembled to the first C hinge shaft; and a second friction torque generation portion composed of a fixed screw, a friction washer, and a flat spring assembled to the second C hinge shaft.

4. The opening and closing device according to claim 1, the first and second housings being assembled to the first and second assembly bases so as to be slidable and performing sliding actions by the first and second sliding mechanisms, respectively.

5. The opening and closing device according to claim 1, a tension coil spring being stretched between either or both of the first and second housings and either or both of the first and second assembly bases.

6. The opening and closing device according to claim 1, first and second chain structure members being provided between the respective sliding members of the first and second sliding mechanisms.

7. The opening and closing device according to claim 1, an action mechanism inside the first and second housings being driven by actions of the first and second sliding mechanisms when the first and second housings are operated to open and close.

8. A terminal machine using the opening and closing device according to claim 1.

Images