Switchgear and terminal equipment using this switchgear

Abstract

To provide an opening / closing device which can make a terminal apparatus further thinner in a thickness, can cope with one piece of a flexible display sheet which is arranged while straddling both faces of a first box body and a second box body, and can operate internal mechanisms of the first box body and the second box body at opening / closing operations of the first box body and the second box body, and the terminal apparatus using the opening / closing device.SOLUTION: Hinge shafts are rotatably attached to a first attachment base attached to a first box body side, and a second attachment base attached to a second box body side, the hinge shafts are connected to each other by a connecting member, a pair of slide members are slidably arranged at sides of the first attachment base and the second attachment base, a pair of the slide members and the hinge shafts are connected to each other by a pair of drive belts, and an operation member which turns by a slide motion is connected to at least either of at least a pair of the slide members by a link member.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to an opening and closing device that connects a first housing and a second housing that are opened and closed relative to each other in terminal devices such as notebook computers, laptop computers, electronic dictionaries, and PDAs (Personal Digital Assistants), and to terminal devices that use this opening and closing device. [Background technology]

[0002] Conventionally, an opening / closing device that uses a hinge shaft to openably connect a first housing on the keyboard side of a terminal device such as a notebook computer or an electronic dictionary to a second housing on the display side is known, for example, as disclosed in Patent Document 1. This conventionally known opening / closing device has an operating mechanism installed between the opening / closing device and the first housing that can operate the internal mechanism of the first housing when the first and second housings are opened or closed, and is configured so that when the opening / closing device is opened or closed, the operating mechanism can operate the internal operating mechanism of the first housing, for example a mechanism that causes legs provided on the bottom of the first housing to extend and retract depending on the opening / closing angle when the first and second housings are opened or closed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-280248 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, there has been a demand for even thinner terminal devices that are designed to be portable, such as notebook computers, and for displays, there is also a demand for opening and closing devices that are compatible with displays that use a single flexible display sheet covering both the first and second housings, as well as opening and closing devices that are equipped with an operating mechanism that allows the internal mechanisms of both the first and second housings to be operated in conjunction with the opening and closing operation of the opening and closing device.

[0005] Therefore, an object of the present invention is to provide an opening and closing device that can make terminal devices thinner, can accommodate a single flexible display sheet that spans both sides of a first housing and a second housing, and has the function of operating the internal mechanisms of the first housing and the second housing when the first housing and the second housing are opened or closed, as well as a terminal device that uses this opening and closing device. [Means for solving the problem]

[0006] In order to achieve the above object, an opening and closing device according to claim 1 of the present application has a first slide mechanism provided on a first mounting base attached to a first housing side and a second slide mechanism provided on a second mounting base attached to a second housing side, the first slide mechanism comprising: a firstB hinge shaft attached to the first mounting base side so as to be rotatable when the first housing is opened or closed; a secondB hinge shaft attached to the second mounting base side, one end of which is wound around the firstB hinge shaft with a winding direction changed, the secondB hinge shaft facing the firstB hinge shaft and being rotatable when the second housing is opened or closed; a connecting member connecting the firstB hinge shaft and the secondB hinge shaft in a radial direction so as to be rotatable relative to each other; and a first slide mechanism drive shaft, one end of which is wound around the firstB hinge shaft with a winding direction changed from each other at a predetermined interval. a belt and a second slide mechanism drive belt, a third slide mechanism drive belt and a fourth slide mechanism drive belt wound around the second B hinge shaft with one end wound in a different direction from each other at a predetermined interval, a first slide member and a second slide member attached to the first mounting base side so as to be slidable in the radial direction of the first B hinge shaft and formed by connecting the other end sides of the first slide mechanism drive belt and the second slide mechanism drive belt, a third slide member and a fourth slide member attached to the second mounting base side so as to be slidable in the radial direction of the second B hinge shaft and formed by connecting the other end sides of the third slide mechanism drive belt and the fourth slide mechanism drive belt, and a first link mechanism and a second link mechanism respectively provided between the first slide member and the second slide member and between the third slide member and the fourth slide member. and a stopper mechanism that restricts the rotation angles of a firstA hinge shaft that is rotatably attached to the first mounting base and coupled to the firstB hinge shaft, and a secondA hinge shaft that is rotatably attached to the second mounting base and coupled to the secondB hinge shaft, the stopper mechanism including locking step portions provided on a firstA mounting member that is attached to the first mounting base and rotatably supports the firstA hinge shaft, and a secondA mounting member that is attached to the second mounting base and rotatably supports the secondA hinge shaft, and a mounting piece portion provided on a connecting member that connects one end side of the firstA hinge shaft and the secondA hinge shaft, and when each of the first mounting base and the second mounting base rotates due to an operation of opening or closing the first housing and the second housing, the locking step portions of the firstA mounting member and the secondA mounting member each come into contact with the mounting piece portion of the connecting member, thereby restricting the rotation. It is characterized by:

[0007] Next, in the opening and closing device described in claim 2 of the present application, a synchronous rotation mechanism is provided adjacent to the first slide mechanism and the second slide mechanism, and this synchronous rotation mechanism Record number 1A hinge shaft and front Record number 2A hinge shaft, the 1A hinge shaft and the 2A hinge shaft The other end ofand a first synchronous rotation drive belt and a second synchronous rotation drive belt wound around the first A hinge shaft and the second A hinge shaft at a predetermined interval with the belt wound in different directions.

[0008] Next, the opening and closing device described in claim 3 of the present application is characterized in that a friction torque generating mechanism is provided adjacent to the first slide mechanism and the second slide mechanism, and the friction torque generating mechanism is composed of a first C-hinge shaft rotatably attached to the first mounting base 7 and connected to the first B-hinge shaft, a second C-hinge shaft rotatably attached to the second mounting base and connected to the second B-hinge shaft, a connecting member connecting the first C-hinge shaft and the second C-hinge shaft to each other, a first friction torque generating unit composed of a fastening screw attached to the first C-hinge shaft, a friction washer and a disc spring, and a second friction torque generating unit composed of a fastening screw attached to the second C-hinge shaft, a friction washer and a disc spring.

[0009] Furthermore, the opening and closing device described in claim 4 of the present application is characterized in that the first housing and the second housing are slidably attached to the first mounting base and the second mounting base.

[0010] Furthermore, the opening and closing device described in claim 5 of the present application is characterized in that a tension coil spring is tensioned between either or both of the first housing and the second housing and either or both of the first mounting base and the second mounting base.

[0011] Furthermore, the opening and closing device described in claim 6 of the present application is characterized in that a first link mechanism and a second link mechanism are provided between the slide members of the first slide mechanism and the second slide mechanism, respectively.

[0012] Furthermore, the opening and closing device described in claim 7 of the present application is characterized in that the operating mechanisms inside the first housing and the second housing are operated by the first slide mechanism and the second slide mechanism, which operate when the first housing and the second housing are opened or closed.

[0013] And, the method according to claim 8 of the present application Terminal equipment The present invention is characterized in that the opening and closing device according to any one of claims 1 to 7 is used. [Effects of the Invention]

[0014] According to the invention of claim 1, when an opening or closing operation is performed on either the first housing or the second housing, either or both of the first housing and the second housing become slidable relative to either or both of the first housing and the second housing. Therefore, when the first housing and the second housing are opened, the flexible display sheet can be stretched, and wrinkles on the flexible display sheet can be effectively prevented. , th It also prevents interference between the connecting ends of the first and second housings. Furthermore, it is possible to restrict rotation beyond a certain angle. This is what is done.

[0015] Next, according to the invention described in claim 2, when an opening or closing operation is performed on either the first housing or the second housing, the opening or closing operation is transmitted to the other housing, either the first housing or the second housing, via the synchronous rotation mechanism, allowing the opening or closing operations to be performed simultaneously.

[0016] Next, according to the invention described in claim 3, the friction torque generated by the friction torque generating mechanism occurs when the first housing and the second housing are opened or closed, which gives the operator a comfortable operating feel and allows the first housing and the second housing to be stably stopped and held at any opening or closing angle.

[0017] Furthermore, according to the invention described in claim 4, the first housing and the second housing are slidably attached to the first mounting base and the second mounting base, and are configured to be able to slide by the first slide mechanism and the second slide mechanism, respectively.

[0018] Furthermore, according to the invention described in claim 5, when the first housing and the second housing are opened or closed, it is possible to prevent the flexible display sheet provided across each surface of the first housing and the second housing from wrinkling.

[0019] According to the invention of claim 6, the link mechanism is constituted by a link member rotatably attached at its center between a pair of slide members and having one end engaged with one of the slide members and the other end engaged with the other slide member, so that in either opening or closing the opening / closing device, one slide member is advanced by the drive belt wound around the hinge shaft, which in turn rotates the link member rotatably attached at its center between the pair of slide members, causing the other slide member to recede and the other drive belt to be unwound. Therefore, in either opening or closing the opening / closing device, kinks or twists in the drive belt can be prevented, allowing the opening / closing device to perform a suitable opening and closing operation.

[0020] Furthermore, according to the invention of claim 7, the first slide mechanism and the second slide mechanism can operate the internal mechanisms provided inside the first housing and the second housing.

[0021] According to the invention as set forth in claim 8, a terminal device having the features of the opening and closing device as set forth in claims 1 to 7 can be provided. [Brief explanation of the drawings]

[0022] [Figure 1]1A and 1B show a notebook computer as an example of a terminal device using an opening / closing device according to the present invention, in which (a) is a perspective view of the terminal device in a closed state, (b) is a perspective view of the terminal device in a 90° opened state, and (c) is a perspective view of the terminal device in a 180° opened state. [Figure 2] 1 is a partially exploded perspective view of a terminal device using a switching device according to the present invention. [Figure 3] 1A and 1B are diagrams illustrating the mounting state of the opening and closing device according to the present invention to the first and second housings, where FIG. 1A is a perspective view, and FIG. 1B is a perspective view showing the state of the mounting portion. [Figure 4] 4 is a cross-sectional view taken along line AA in FIG. 3, in which the internal mechanism of the switching device is omitted. [Figure 5] 1 is a perspective view of the opening and closing device according to the present invention in a state where it is turned over and opened 180 degrees. FIG. [Figure 6] 6 is a perspective view of the state shown in FIG. 5 with the cover removed. [Figure 7] FIG. 6 is an exploded perspective view of the state shown in FIG. 5. [Figure 8] FIG. 6 is a perspective view of a first mounting base and a second mounting base of the opening and closing device shown in FIG. 5. [Figure 9] 6A, 6B, and 6C show a slide member of the opening and closing device shown in FIG. 5, with FIG. 6A being a perspective view, FIG. 6B being a side view, and FIG. 6C being a cross-sectional view. [Figure 10] 6A and 6B show an adjusting member of the opening and closing device shown in FIG. 5, where FIG. 6A is a perspective view thereof and FIG. 6B is a cross-sectional view thereof. [Figure 11] FIG. 6 is an exploded perspective view of a main part of a synchronous rotation mechanism of the opening and closing device shown in FIG. [Figure 12] 6 is an exploded perspective view illustrating the configuration of a first B hinge shaft and a second B hinge shaft of the slide mechanism of the opening and closing device shown in FIG. 5. FIG. [Figure 13] FIG. 2 is an enlarged perspective view of a friction torque generating mechanism. [Figure 14] 6A, 6B, and 6C show a first connecting member of the opening and closing device shown in FIG. 5, with FIG. 6A being a perspective view thereof, FIG. 6B being a plan view thereof, and FIG. 6C being a front view thereof. [Figure 15]6 is a perspective view of a first A mounting member and a second A mounting member of the opening and closing device shown in FIG. 5. FIG. [Figure 16] 6A and 6B show the drive belts of the opening and closing device shown in FIG. 5, where FIG. 6A is a developed plan view of the synchronous rotation drive belt, and FIG. 6B is a developed plan view of the slide mechanism drive belt. [Figure 17] 6A and 6B show the operating members of the slide mechanism of the opening and closing device shown in FIG. 5, where (a) is a plan view of the longer one and (b) is a plan view of the shorter one. [Figure 18] FIG. 6 is a perspective view of a link member of the opening and closing device shown in FIG. [Figure 19] 6A and 6B are cross-sectional views of the opening and closing device shown in FIG. 5 in a closed state, where (a) is a cross-sectional view divided at the portion between the first slide member and the third slide member, and (b) is a cross-sectional view divided at the portion between the second slide member and the fourth slide member. [Figure 20] 6A and 6B are cross-sectional views of the opening and closing device shown in FIG. 5 in a 180° opened state, where (a) is a cross-sectional view divided at the portion between the first slide member and the third slide member, and (b) is a cross-sectional view divided at the portion between the second slide member and the fourth slide member. [Figure 21] 2 shows a second embodiment of the opening and closing device and terminal equipment according to the present invention, in which (a) is a perspective view of the terminal equipment in a closed state, (b) is a perspective view of the terminal equipment in a 90° opened state, and (c) is a perspective view of the terminal equipment in a 180° opened state. [Figure 22] An enlarged cross-sectional explanatory diagram of the terminal device and opening / closing device shown in Figure 21, divided at the sliding member, is shown, where (a) shows the state in which the first and second housings are closed, and (b) shows the state in which they are opened 90 degrees. [Figure 23] 22A and 22B are enlarged cross-sectional explanatory views of the terminal device and the switchgear slide member shown in FIG. 21, where (a) shows the state when opened 180° and (b) shows the state when opened 360°. DETAILED DESCRIPTION OF THE INVENTION

[0023] The present invention will be described below with reference to the accompanying drawings, assuming that the terminal device is a notebook computer, but terminal devices for which the present invention can be implemented include other terminal devices such as laptop computers, electronic dictionaries, and PDAs. The present invention can also be used in a variety of other devices and containers that require a synchronous rotation mechanism, a sliding mechanism, or a friction torque generating mechanism when opening and closing the first and second housings.

[0024] [Embodiment 1] As shown in Figures 1(a), (b), and (c), the terminal device 1, which is represented by a notebook computer according to this embodiment 1, is connected to the first housing 2 and the second housing 3 by opening and closing devices 4, 4 according to the present invention, which are provided on the left and right sides of the connecting portion between the first housing 2 and the second housing 3, so that the first housing 2 and the second housing 3 can be opened and closed relative to each other between 0° and approximately 180°.

[0025] In the first embodiment, the display unit 5 is made up of a single foldable flexible display sheet 5a, which covers both sides of the first housing 2 and the second housing 3 via a cushion sheet 5b. In this embodiment, a pair of opening / closing devices 4, 4 having the same configuration are provided on the left and right sides of the terminal device 1 (notebook computer). Since the opening / closing devices 4, 4 have the same configuration, the following description will focus on the opening / closing device 4 on the right side in FIG. 1(a), and will omit a description of the configuration of the other opening / closing device on the left side.

[0026] 1 to 7, the opening and closing device 4 is shown with both the first mounting base 7 and the second mounting base 8 turned upside down to explain the internal mechanism. According to the drawings, the opening and closing device 4 has a first mounting base 7 that is attached to the first housing 2 and a second mounting base 8 that is attached to the second housing 3. The first mounting base 7 and the second mounting base 8 have the same configuration, and as shown in FIG. 8 in particular, they are rectangular in shape when viewed from above, and have walls 7a, 7a, 7a, 7a, 8a, 8a, 8a on three sides excluding the side on which a plurality of hinge shafts described below are attached, thereby providing housing sections 7b and 8b inside for accommodating internal mechanisms such as a first sliding mechanism B1 and a second sliding mechanism B2 described below.

[0027] 6 and 7, the storage sections 7b and 8b are provided with slide guide grooves 6a, 6b and slide guide grooves 9a, 9b, which are partitioned by central partition walls 7c, 8c provided at approximately the center of each storage section, and by mounting base sections 7t, 7t, 7t, 7t provided on both sides of the central partition walls 7c, 8c and pairs of side partition members 7d, 7e, 8d, 8e attached to the mounting base sections 8t, 8t, 8t, 8t with mounting screws. Between the side partition members 7d, 7e, 8d, 8e and the bottoms of the storage sections 7b and 8b, respectively, there are guides through which a long first operating member 26a, a short second operating member 26b, a long third operating member 27a, and a short fourth operating member 27b are inserted, as will be described later. groove is formed 。

[0028] Furthermore, on the sides of the first mounting base 7 and the second mounting base 8 where the wall portions 7a and 8a are not provided, mounting portions 7h, 7i, 7j, 7k, 7m and mounting portions 8h, 8i, 8j, 8k, 8m are provided facing each other, and pivotal support portions 7z and 8z are provided to rotatably support the first link member 70 and the second link member 71 of the first link mechanism B3 and the second link mechanism B4 described later.

[0029] As shown in Figures 5 to 7, on the sides of the first mounting base 7 and the second mounting base 8 where the wall portions 7a, 7a, 7a and 8a, 8a, 8a that are the peripheral walls thereof are not provided, the firstA hinge shaft 10 and the secondA hinge shaft 13 that constitute the synchronous rotation mechanism A, the firstB hinge shaft 11 and the secondB hinge shaft 14 that constitute the slide mechanism B, and the firstC hinge shaft 12 and the secondC hinge shaft 15 that constitute the friction torque generating mechanism C, which will be described later, are mounted so that they share a common axis, are parallel to each other, and can rotate together in the same direction.

[0030] The first-A hinge shaft 10 and the second-A hinge shaft 13 of the synchronous rotation mechanism A have the same configuration. As shown in FIG. 11, the first-A hinge shaft 10 and the second-A hinge shaft 13 are formed as deformed shaft portions 10a and 13a as a whole, and their central portions are rotatably inserted into circular bearing holes 46a and 46a formed in the second connecting member 46. The first-B hinge shaft 11 and the second-B hinge shaft 14 of the slide mechanism B also have the same configuration, and as shown in FIG. 12, flange portions 11a and 14a are formed in the approximate center, with deformed shaft portions 11b and 14b formed on both sides. Furthermore, the first-C hinge shaft 12 and the second-C hinge shaft 15 of the friction torque generating mechanism C also have the same configuration.

[0031] Of the above, the firstA hinge shaft 10 and the secondA hinge shaft 13 of the synchronous rotation mechanism A have deformed shaft portions 10a and 13a at one end side rotatably supported in circular bearing holes 16a and 17a of the firstA mounting member 16 and the secondA mounting member 17, respectively, which have mounting pieces 16c and 17c attached to mounting portions 7h and 8h provided on the right ends of the first mounting base 7 and the second mounting base 8, as shown in Figures 7 and 8. In addition, the other end sides of the 1A hinge shaft 10 and the 2A hinge shaft 13 are engaged with deformed bearing holes 18a, 19a provided in the 1B mounting member 18 and the 2B mounting member 19, which are positioned inside the 1A mounting member 16 and the 2A mounting member 17 and attached to the respective mounting portions 7i and 8i of the first mounting base 7 and the second mounting base 8, and are configured to rotate together with the opening and closing movements of the first mounting base 7 and the second mounting base 8.

[0032] Next, as shown in Figures 6 to 8, one end of each of the firstB hinge shaft 11 and the secondB hinge shaft 14 of the slide mechanism B is attached to each of the mounting portions 7j and 8j provided approximately in the middle of the first mounting base 7 and the second mounting base 8, and is rotatably supported in circular bearing holes 20a and 21a provided in the firstC mounting member 20 and the secondC mounting member 21, and is inserted into and engaged with circular bearing holes 48a and 48a provided in the fourth connecting member 48 which is engaged with the other end sides of the firstA hinge shaft 10 and the secondA hinge shaft 13.

[0033] Furthermore, one end of the first C hinge shaft 12 and one end of the second C hinge shaft 15 of the friction torque generating mechanism C are engaged with the deformed bearing holes 22a and 23a provided in the first D mounting member 22 and the second D mounting member 23 attached to the mounting portions 7k and 8k, and the other end of the first C hinge shaft 12 and the second C hinge shaft 15 are rotatably supported in the circular bearing holes 24a and 25a of the first E mounting member 24 and the second E mounting member 25 attached to the mounting portions 7m and 8m.

[0034] With the above configuration, the 1A hinge shaft 10, the 1B hinge shaft 11, and the 1C hinge shaft 12, and the 2A hinge shaft 13, the 2B hinge shaft 14, and the 2C hinge shaft 15 rotate integrally like a single hinge shaft when the first mounting base 7 and the second mounting base 8, and thus the first housing 2 and the second housing 3, are opened or closed. However, this configuration is not limited to that of the embodiment, and other configurations may also be used, and as will be described later, this may not be required if any of the synchronous rotation mechanism A, the slide mechanism B, or the friction torque generating mechanism C attached to each hinge shaft is omitted.

[0035] As shown in Figures 3 and 4, the first mounting base 7 and the second mounting base 8 are provided with guide rails 7n, 7n, 8n, 8n on both sides, and these guide rails 7n, 7n, 8n, 8n engage with guide grooves 2b, 2b, 3b, 3b provided on both sides of the first mounting base accommodating section 2a and the second mounting base accommodating section 3a provided in the first housing 2 and the second housing 3, respectively, to accommodate the first mounting base 7 and the second mounting base 8, as shown particularly in Figures 3 and 4. The first housing 2 and the second housing 3 are attached to the first mounting base 7 and the second mounting base 8 by the engagement of these guide rails 7n, 7n and 8n, 8n with the guide grooves 2b, 2b, 3b, 3b. The first housing 2 and the second housing 3 are slidable relative to the first mounting base 7 and the second mounting base 8 of the opening and closing device 4.

[0036] In addition, as shown particularly in Figures 1 and 3, a plurality of tension coil springs 2d, 2d... and tension coil springs 3d, 3d... are stretched between the first mounting base 7 and the second mounting base 8 and the first housing 2 and the second housing 3, constantly biasing the first housing 2 and the second housing 3 to slide toward the first mounting base 7 and the second mounting base 8.

[0037] As explained above, the 1A hinge shaft 10 and the 2A hinge shaft 13 are each provided with a synchronous rotation mechanism A, which will be described later, the 1B hinge shaft 11 and the 2B hinge shaft 14 are each provided with a slide mechanism B, and further, the 1C hinge shaft 12 and the 2C hinge shaft 15 are each provided with a friction torque generating mechanism C.

[0038] The configurations of the 1A mounting member 16, 1B mounting member 18, 1C mounting member 20, 1D mounting member 22, and 1E mounting member 24, and the 2A mounting member 17, 2B mounting member 19, 2C mounting member 21, 2D mounting member 23, and 2E mounting member 25 are the same except for whether the shape of the bearing hole is circular or irregular. To explain the 1A mounting member 16 and the 2A mounting member 17 as representatives, as shown in Figure 15 in particular, circular bearing holes 16a, 17a are provided on one side of approximately rectangular main body portions 16b and 17b, and mounting pieces 16c, 17c bent at a right angle are provided on one side of the other. Mounting holes 16d and 17d are formed in the mounting pieces 16c and 17c, and the first A mounting member 16 and the second A mounting member 17 are fixed by overlapping the mounting pieces 16c and 17c with mounting portions 7h and 8h having mounting holes 7o and 8o provided at one end of the first mounting base 7 and the second mounting base 8, and tightening them with mounting screws.

[0039] Of the other 1B mounting member 18, 1C mounting member 20, 1D mounting member 22, and 1E mounting member 24, and 2B mounting member 19, 2C mounting member 21, 2D mounting member 23, and 2E mounting member 25, the bearing holes 18a, 22a, 19a, and 23a of the 1B mounting member 18, the 1D mounting member 22, the 2B mounting member 19, and the 2D mounting member 23 are deformed bearing holes, but the bearing holes 20a, 24a and 21a, 25a of the other 1C mounting member 20, the 1E mounting member 24, the 2C mounting member 21, and the 2E mounting member 25 are circular bearing holes. The only other components are that the first-A mounting member 16 and the second-A mounting member 17 have locking steps 16e and 17e, and the other components are the same, and as shown in Figures 7 and 8, they are attached to the mounting portions 7i, 8i, 7j, 8j and mounting portions 7k, 8k, 7m, 8m provided on the first mounting base 7 and the second mounting base 8. In the drawings, as shown in Figure 7 in particular, only the first-A mounting member 16, the second-A mounting member 17, the first-E mounting member 24, and the second-E mounting member 25 are shown independently, and the others are shown assembled to their respective mounting portions.

[0040] As described above, the mounting portions for mounting each mounting member are provided at predetermined intervals on the first mounting base 7 and the second mounting base 8, starting from mounting portions 7h and 8h of the firstA mounting member 16 and the secondA mounting member 17, as shown in Figures 7 and 8, and are indicated by designations 7i, 8i, 7j, 8j, 7k, 8k, 7m, and 8m. Mounting holes 7o, 7p, 7q, 7r, and 7s, and 8o, 8p, 8q, 8r, and 8s are provided on each of the mounting portions 7h to 7m and 8h to 8m, respectively. 1st E mounting member 24 and the respective mounting pieces (only 16c, 17 and 24c, 25c are shown) provided on the second B mounting member 19 to the second D mounting member 23 are connected to the respective mounting portions 7i, 8i, 7j, 8j, 7k, 8k. 7m, 8m The two are stacked on top of each other and secured with fastening screws.

[0041] In the case of the first A hinge shaft 10 and the second A hinge shaft 13 that constitute the synchronous rotation mechanism A, one end side of each deformed shaft portion 10a, 13a is rotatably supported in each circular bearing hole 16a, 17a provided in the first A mounting member 16 and the second A mounting member 17, and the other end side is engaged with each deformed bearing hole 18a, 19a in the first B mounting member 18 and the second B mounting member 19.

[0042] Next, one end of the 1A hinge shaft 10 is rotatably attached to a circular bearing hole 16a provided in the 1A mounting member 16, and the other end is engaged with a deformed bearing hole 18a provided in the 1B mounting member 18. One end of the 1B hinge shaft 11 is rotatably supported in a circular bearing hole 20a provided in the 1C mounting member 20, and the other end is engaged with a deformed hole (not shown) provided in the first connecting cylindrical portion 61. Furthermore, one end of the 1C hinge shaft 12 is engaged with a deformed bearing hole 22a provided in the 1D mounting member 22, and also engages with a deformed hole (not shown) provided in the first connecting cylindrical portion 61, and the other end is rotatably supported in a circular bearing hole 24a provided in the 1E mounting member 24.

[0043] 6 and 7, one end of the 2A hinge shaft 13 is rotatably attached to a circular bearing hole 17a provided in the 2A mounting member 17, and the other end is engaged with a deformed bearing hole 19a provided in the 2B mounting member 19. One end of the 2B hinge shaft 14 is rotatably supported in a circular bearing hole 21a provided in the 2C mounting member 21, and the other end is engaged with a deformed hole (not shown) provided in the second connecting cylindrical portion 63. One end of the 2C hinge shaft 15 is engaged with a deformed bearing hole 23a provided in the 2D mounting member 23, and also engages with a deformed hole (not shown) provided in the second connecting cylindrical portion 63, and the other end is rotatably supported in a circular bearing hole 25a provided in the 2E mounting member 25.

[0044] Therefore, when the first housing 2 and the second housing 3 are opened from their closed state, the 1A hinge shaft 10, the 1B hinge shaft 11, and the 1C hinge shaft 12 rotate integrally in the same direction via the 1B mounting member 18 and the 1D mounting member 22 attached to the first mounting base 7, which rotate together, and the 2A hinge shaft 13, the 2B hinge shaft 14, and the 2C hinge shaft 15 rotate integrally in the same direction via the 2B mounting member 19 and the 2D mounting member 23 attached to the second mounting base 8. At this time, the rotations of the 1A hinge shaft 10 and the 2A hinge shaft 13 are synchronized by the synchronous rotation mechanism A.

[0045] 5 to 7, the components indicated by the reference symbol 43 are shielding members that prevent foreign matter from entering the inside of the opening and closing device 4 and shield the internal structure from view from the outside, and are attached between the first B hinge shaft 11 and the second B hinge shaft 14, and between the first C hinge shaft 12 and the second C hinge shaft 15. Screw holes 43a, 43b, 43c, and 43d provided therein are used to insert the screws of the first C hinge shafts of the friction torque generating mechanism C. Hi The eighth connecting member 52 and the fifth connecting member 49 connect the hinge shaft 12 and the second C-hinge shaft 15. to The fourth connecting member 48 and the third connecting member 47 are attached to the mounting holes 52c and 49c formed therein and to the mounting holes 48c and 47c formed in the fourth connecting member 48 and the third connecting member 47 by mounting screws (not shown).

[0046] As shown in FIG. 11, the synchronous rotation mechanism A is composed of a first synchronous rotation drive belt 28 and a second synchronous rotation drive belt 29, both ends of which are wound in opposite directions around a first pulley 53 and a second pulley 54, and a third pulley 55 and a fourth pulley 56, which are attached to deformed shaft portions 10a, 10a and 13a, and 13a, respectively, with the second connecting member 46 sandwiched between them in the axial direction of the firstA hinge shaft 10 and the secondA hinge shaft 13. The first pulley 53, the second pulley 54, and the third pulley 55 and the fourth pulley 56 are each made up of three identical diameter pulleys, namely, the first a small pulley 53a, the first b small pulley 53b, the first c small pulley 53c, the second a small pulley 54a, the second b small pulley 54b, the second c small pulley 54c, the third a small pulley 55a, the third b small pulley 55b, the third c small pulley 55c, the fourth a small pulley 56a, the fourth b small pulley 56b, the fourth c small pulley 56c, all stacked in the axial direction. The middle pulleys, the first b small pulley 53b, the second b small pulley 54b, the third b small pulley 55b, the fourth b small pulley 56b, and the fourth b small pulley 56c, are each stacked in the axial direction. Locking piece 53d, 54d and 55d, 56d are provided.

[0047] Each of the first synchronous rotation drive belt 28 and the second synchronous rotation drive belt 29 is a thin, flexible sheet made of a metal, for example, stainless steel, having a thickness of about 0.3 mm, and its development view is shown in Figure 16(a). As shown in the drawing, each belt has planar rectangular locking holes 28a, 28b and locking holes 29a, 29b at both ends, and elongated holes 28c, 29c are provided in the longitudinal direction at the center. First, the first synchronous rotation drive belt 28 is provided on the firstb small pulley 53b and the thirdb small pulley 55b that constitute the first pulley 53 and the third pulley 55 attached to the firstA hinge shaft 10 and the secondA hinge shaft 13, respectively. Locking piece The winding direction is changed so that the winding direction is changed around the first pulley 53 and the third pulley 55, while the ... third pulley 55, while the winding direction is changed so

[0048] Next, the second synchronous rotation drive belt 29 is provided on the second small pulley 54b and the fourth small pulley 56b which constitute the second pulley 54 and the fourth pulley 56 attached to the first A hinge shaft 10 and the second A hinge shaft 13, respectively. Locking piece The first synchronous rotation drive belt 28 is wound in the opposite direction to the first synchronous rotation drive belt 28, with the locking holes 29a, 29b locked in the locking holes 54d, 56d. The first-A hinge shafts 10 and second-A hinge shafts 13 in embodiment 1 are rotatably connected to each other by four members: a first connecting member 45, a second connecting member 46, a third connecting member 47, and a fourth connecting member 48, and both end sides of the first hinge shafts 10 and second-A hinge shafts 13 are rotatably supported in circular bearing holes 16a and 17a provided in the first-A mounting member 16 and the second-A mounting member 17 provided in the first mounting base 7 and the second mounting base 8, and the other end sides are locked in deformed bearing holes 18a and 19a provided in the first-B mounting member 18 and the second-B mounting member 19. As a result, the first A hinge shaft 10 and the second A hinge shaft 13 are configured to be rotatable together with the first mounting base 7 and the second mounting base 8 as the first housing 2 and the second housing 3 are opened and closed.

[0049] Next, we will explain the slide mechanism B. This slide mechanism B is made up of a first slide mechanism B1 on the first mounting base 7 side and a second slide mechanism B2 on the second mounting base 8 side, but the first slide mechanism B1 and the second slide mechanism B2 have the same configuration. Therefore, in this specification, when we simply say "slide mechanism," it refers to both the first slide mechanism B1 and the second slide mechanism B2.

[0050] First, the first slide mechanism B1 will be described. As shown in Figures 5 to 7 and 12, this first slide mechanism B1 is composed of a 1B hinge shaft 11, a first slide member 34 and a second slide member 35 that slide in the radial direction of the 1B hinge shaft 11 within slide guide grooves 6a, 6b that are partitioned by a central partition wall 7c and side partition members 7d, 7e on the first mounting base 7, and a first slide mechanism drive belt 30 and a second slide mechanism drive belt 31 that have one end side wound in opposite winding directions around a fifth pulley 57 and a sixth pulley 58 attached to deformed shaft portions 11b, 11b that are provided on either side of the flange portion 11a of the 1B hinge shaft 11, and have the other end side connected to the first slide member 34 and the second slide member 35.

[0051] 5 to 7 and 12, the second slide mechanism B2 is composed of the secondB hinge shaft 14, a third slide member 36 and a fourth slide member 37 that slide in the radial direction of the secondB hinge shaft 14 within slide guide grooves 9a and 9b that are partitioned on the second mounting base 8 by a central partition wall 8c and side partition members 8d and 8e, and a third slide mechanism drive belt 32 and a fourth slide mechanism drive belt 33 that have one end side wound around a seventh pulley 59 and an eighth pulley 60 in opposite winding directions and have the other end side connected to the third slide member 36 and the fourth slide member 37.

[0052] To explain in more detail, the first B hinge shaft 11 and the second B hinge shaft 14 have the same configuration, and as shown in FIG. 12, the first B hinge shaft 11 and the second B hinge shaft 14 are provided with deformed shaft portions 11b, 11b and deformed shaft portions 14b, 14b sandwiched between the flange portions 11a and 14a. 11b, 11b·14b, a fifth pulley 57 and a sixth pulley 58, and a seventh pulley 59 and an eighth pulley 60 are attached through 14b. Each of the fifth pulley 57, sixth pulley 58, seventh pulley 59 and eighth pulley 60 consists of three thin pulleys of the same diameter: 5a small pulley 57a, 5b small pulley 57b, 5c small pulley 57c; 6a small pulley 58a, 6b small pulley 58b, 6c small pulley 58c; 7a small pulley 59a, 7b small pulley 59b, 7c small pulley 59c; and 8a small pulley 60a, 8b small pulley 60b, 8c small pulley 60c, which are stacked one on top of the other. Locking pieces 57d, 58d, 59d, 60d are provided on the middle fifth small pulley 57b, sixth small pulley 58b, seventh small pulley 59b, eighth small pulley 60b, respectively.

[0053] The first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 33 are made of metal, such as stainless steel, and are sheet-like with a thickness of approximately 0.3 mm. They are made of the same material and have the same structure as the first synchronous rotation drive belt 28 and the second synchronous rotation drive belt 29. Therefore, Figure 16(b) shows a representative developed view of one of them, and the others are marked with their respective reference symbols. As shown in the drawing, each of them has rectangular planar locking holes 30a, 30b, 31a, 31b, 32a, 32b, 33a, and 33b at both ends, and elongated holes 30c, 31c, 32c, and 33c in the longitudinal direction of each central portion.

[0054] The first slide member 34, the second slide member 35, the third slide member 36, and the fourth slide member 37 have the same configuration. Of these, the first slide member 34 is shown in Figure 9 as a representative, and the other slide members are indicated by parentheses. According to the drawing, the first slide member 34 to the fourth slide member 37 all have a generally rectangular shape in plan view, and are made up of thick portions 34a, 35a, 36a, and 37a and thin portions 34b, 35b, 36b, and 37b. The thin portions 34b, 35b, 36b, and 37b have link member engagement holes 34c and 35c at the tips thereof, which are oriented in a direction perpendicular to the direction of extension thereof, for the first link member 70 of the first link mechanism B3 and the second link member 71 of the second link mechanism B4. , 36c, 37c are provided, and drive belt mounting recesses 34d, 35d, 36d, 37d are provided in the thick portions 34a, 35a, 36a, 37a on the opposite side, and mounting shafts 34e, 35e, 36e, 37e are provided on the undersides of the thin portions 34b, 35b, 36b, 37b between the drive belt mounting recesses 34d, 35d, 36d, 37d and the link member engagement holes 34c, 35c, 36c, 37c. The drive belt mounting recesses 34d, 35d, 36d, 37d are configured such that drive belt mounting portions 34f, 35f, 36f, 37f are inclinedly provided therein, and mounting screw holes 34g, 35g, 36g, 37g are provided in the centers of the drive belt mounting portions 34f, 35f, 36f, 37f. Furthermore, front gaps 34h, 35h, 36h, 37h and rear gaps 34i, 35i, 36i, 37i are provided in front and rear of the drive belt mounting portions 34f, 35f, 36f, 37f, through which the first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 33 pass. The front gaps 34h, 35h, 36h, 37h are formed between the front wall portions 34k, 35k, 36k, 37k and the drive belt mounting portions 34f, 35f, 36f, 37f.

[0055] 5 and 7, a first link mechanism side cover 97 and a second link mechanism side cover 98 are attached to the mounting bases 7u, 7u and 8u, 8u provided on the first mounting base 7 and the second mounting base 8, respectively, to cover the top surfaces of the first link mechanism B3 and the second link mechanism B4. Structure B It covers the upper surfaces of the second link mechanism B3 and the second link mechanism B4.

[0056] Each of the 1A adjustment members 39, 1B adjustment members 40, 2A adjustment members 41, and 2B adjustment members 42 has the same configuration, and as shown in particular in Figure 10, it has locking protrusions 39a, 40a, 41a, and 42a on one end side, and guide long holes 39b, 40b, 41b, and 42b in the center.

[0057] Each first slide mechanism drive bell To 3 5 to 7, 12, and 20, one end of each of the first slide mechanism drive belt 30 and the second slide mechanism drive belt 31 is wound around a fifth pulley 57 and a sixth pulley 58 attached to the firstB hinge shaft 11, the former from below and the latter from above, with the locking holes 30a, 31a engaging with locking pieces 57d, 58d provided on the fifthb small pulley 57b and the sixthb small pulley 58b. As shown in FIG. 20, the other end of each of the first slide mechanism drive belt 30 and the second slide mechanism drive belt 31 is guided onto the drive belt mounting portion 34f through the underside of the front wall portion 34k of the first slide member 34, where the locking hole 30a at the tip end is inserted and engaged with a locking projection 39a provided on the firstA adjustment member 39, and then tightened with an adjustment screw 38a. The latter is guided onto the drive belt mounting portion 35f through the upper side of the front wall portion 35k of the second slide member 35, and is attached there by inserting and engaging the locking projection 40a provided on the firstB adjustment member 40 with the locking hole 31a at the tip, and then tightening the adjustment screw 38b. Therefore, after sliding the firstA adjustment member 39 and the firstB adjustment member 40, the tension can be freely adjusted by tightening the adjustment screws 38a, 38b.

[0058] The third slide mechanism drive belt 32 and the fourth slide mechanism drive belt 33 have one end wound around the seventhb small pulley 59b and the eighthb small pulley 60b of the seventh pulley 59 and the eighth pulley 60 attached to the 2B hinge shaft 14, respectively, with the former wound from below and the latter wound from above, with the locking pieces 59d and 60d provided thereon engaging with the locking holes 32a and 33a. As shown in Fig. 20, of the other ends of the third slide mechanism drive belt 32 and the fourth slide mechanism drive belt 33, the former is guided onto the drive belt mounting portion 36f through the underside of the front wall portion 36k of the third slide member 36, where it is attached by inserting and engaging the locking hole 32b at its tip with the locking projection 41a provided on the 2A adjustment member 41 and then tightening with the adjustment screw 38c. The latter is guided onto the drive belt mounting portion 37f through the front wall portion 37k of the second-B slide member 37, and is attached there by inserting and engaging the locking projection 42a provided on the second-B adjustment member 42 with the locking hole 33b at the tip thereof, and then tightening the adjustment screw 38d. Therefore, after sliding the second-A adjustment member 41 and the second-B adjustment member 42, the tension can be freely adjusted by tightening the adjustment screws 38c, 38d.

[0059] 6, the first A hinge shaft 10 and the second A hinge shaft 13 are provided with stopper mechanisms D that restrict the rotation angles of each of them. The stopper mechanisms D are made up of a first stopper mechanism D1 and a second stopper mechanism D2.

[0060] 5 to 7, the first stopper mechanism D1 is made up of an attachment piece 45d provided on the first connecting member 45 and a locking step 16e provided on the firstA mounting member 16 that is attached to the first mounting base 7 and rotatably supports the firstA hinge shaft 10, and the second stopper mechanism D2 is made up of an attachment piece 45d provided on the first connecting member 45 and a locking step 17e provided on the secondA mounting member 17 that is attached to the second mounting base 8 and rotatably supports the secondA hinge shaft 13. When the first mounting base 7 and the second mounting base 8 rotate by 90° together with the opening and closing operations of the first housing 2 and the second housing 3, the locking step 16e of the firstA mounting member 16 and the locking step 17e of the secondA mounting member 17 come into contact with the attachment piece 45d of the first connecting member 45, restricting further rotation. 14, in addition to the mounting piece portion 45d, the first connecting member 45 has circular bearing holes 45b, 45c in its main body portion 45a, through which the firstA hinge shaft 10 and the secondA hinge shaft 13 are rotatably inserted. Furthermore, the configurations of the first stopper mechanism D1 and the second stopper mechanism D2 are not limited to those of embodiment 1. In short, as long as the opening / closing angle between the first housing 2 and the second housing 3 is restricted to a range of 0° to 180°, various configurations are possible, including those based on known techniques.

[0061] As shown in Fig. 18, the first link member 70 of the first link mechanism B3 has a generally oval shape in a plan view. The first link member 70 links the movements of the first slide member 34 and the second slide member 35, and the second link member 71 links the movements of the third slide member 36 and the fourth slide member 37. That is, as shown in Fig. 8, the first link member 70 has, at its generally central portion, a rotation shaft hole 70a into which a pivot support portion 7z provided on the first mounting base 7 is inserted, and a pair of engagement shafts 70b, 70c provided on both ends thereof. The engagement shafts 70b, 70c are engaged with link member engagement holes 34c, 35c provided on one end of the first slide member 34 and the second slide member 35, respectively, as shown in Figs. 6 and 7. Therefore, when either the first slide member 34 or the second slide member 35 is wound up by the connected first slide mechanism drive belt 30 or second slide mechanism drive belt 31, this first link member 70 assists the sliding movement of the second slide mechanism drive belt 31 or first slide mechanism drive belt 30 being unwound, thereby ensuring smooth sliding movement.

[0062] 6, 7, and 18, the second link member 71 has a rotation shaft hole 71a at its approximate center, into which the pivot support 8z provided on the second mounting base 8 is inserted, and a pair of engagement shafts 71b, 71c provided at both ends, and these engagement shafts 71b, 71c are engaged with link member engagement holes 36c, 37c provided at one end of the third slide member 36 and the fourth slide member 37. Therefore, when either the third slide member 36 or the fourth slide member 37 is wound up by the connected third slide mechanism drive belt 32 or fourth slide mechanism drive belt 33, the second link member 71 assists the sliding movement of the unwound fourth slide mechanism drive belt 33 or third slide mechanism drive belt 32, thereby achieving a smooth sliding movement.

[0063] As shown in Figures 5 and 7, a first slide member side cover 95 is provided on the upper surface side of the first mounting base 7, covering the first slide member 34 and the second slide member 35. This first slide member side cover 95 is a plate-like body having a rectangular shape in plan view, and covers a part of the first slide member 34 and the second slide member 35. This first slide member side cover 95 is provided on the mounting base portions 7t, 7t , 7t, 7t The first slide member side cover 95 is attached to the first housing 2 using screws, etc. The first slide member side cover 95 prevents the first slide member 34 and the second slide member 35 from contacting the first housing 2 side and interfering with smooth sliding movement when the first slide member 34 and the second slide member 35 slide.

[0064] Furthermore, a second slide member side cover 96 that covers the third slide member 36 and the fourth slide member 37 is provided on the upper surface side of the accommodation portion 8b of the second mounting base 8. This second slide member side cover 96 is a plate-like body with a flat rectangular shape, and covers parts of the third slide member 36 and the fourth slide member 37. This second slide member side cover 96 is attached using screws or the like to mounting base portions 8t, 8t, 8t, 8t provided on the second mounting base 8. Furthermore, the second slide member side cover 96 prevents the third slide member 36 and the fourth slide member 37 from coming into contact with the second housing 3 when they slide, thereby preventing their smooth sliding action from being hindered.

[0065] Next, we will explain the friction torque generation mechanism C. This friction torque generation mechanism C is made up of a first friction torque generation mechanism C1 provided on the first C hinge shaft 12 side and a second friction torque generation mechanism C2 provided on the second C hinge shaft 15 side.

[0066] First, the first friction torque generating mechanism C1 further comprises a first friction torque generating unit C1-1 and a second friction torque generating unit C1-2. The first friction torque generating unit C1-1 is provided on the first C-hinge shaft 12 side, and is configured in this order in contact with a first fastening screw 72 provided in approximately the center of the first C-hinge shaft 12, including a first friction washer 73, multiple disc springs 74, a second friction washer 75, a seventh connecting member 51, a third friction washer 76, an eighth connecting member 52, and a fourth friction washer 77. The second friction torque generating section C1-2 is composed of, in order, a fifth friction washer 79 provided in contact with the second tightening screw 78 provided adjacent to the first tightening screw 72, multiple disc springs 80, a sixth friction washer 81, a sixth connecting member 50, a seventh friction washer 82, and a fifth connecting member 49.

[0067] Next, the second friction torque generation mechanism C2 is provided on the side of the second C hinge shaft 15, and is made up of a third friction torque generation unit C2-1 and a fourth friction torque generation unit C2-2. The third friction torque generation unit C2-1 is in contact with a third fastening screw 84 provided in approximately the center of the second C hinge shaft 15 and is made up of, in this order, an eighth friction washer 85, multiple disc springs 86, a ninth friction washer 87, a seventh connecting member 51, a tenth friction washer 88, an eighth connecting member 52, and an eleventh friction washer 89. The fourth friction torque generating section C2-2 is composed of, in order, a twelfth friction washer 91 provided in contact with the fourth fastening screw 90 provided adjacent to the third fastening screw 84, a plurality of disc springs 92, a thirteenth friction washer 93, a sixth connecting member 50, a fourteenth friction washer 94, and a fifth connecting member 49.

[0068] Therefore, when the first housing 2 and the second housing 3 are opened or closed, friction torque is generated in the first friction torque generating unit C1-1 and the second friction torque generating unit C1-2 and the third friction torque generating unit C2-1 and the fourth friction torque generating unit C2-2 of the first friction torque generating mechanism C1 and the second friction torque generating mechanism C2, respectively.

[0069] Next, the operation of the opening and closing device 4 will be described. The user can hold the terminal device 1 in his / her hand and open either the first housing 2 or the second housing 3, or both. In this case, for example, if the user holds the first housing 2 with one hand and opens the second housing 3 with the other hand, the first A hinge shaft 10 rotates via the first B mounting member 18 of the synchronous rotation mechanism A through the opening operation, and this rotational driving force is transmitted to the first synchronous rotation driving mechanism A. Movement Route 28 and No. 2 Synchronous rotation drive Movement The rotational drive force is transmitted to the secondA hinge shaft 13 via the bolt 29, and this rotational drive force causes the second mounting base 8 to rotate in the opposite direction to the first mounting base 7, so that the first housing 2 is opened in the opposite direction to the second housing 3 via the firstB mounting member 18 and the secondB mounting member 19. As a result, as the first mounting base 7 and the second mounting base 8 are opened and closed, the firstC hinge shaft 12 rotates via the firstD mounting member 22, and simultaneously the secondC hinge shaft 15 rotates via the secondD mounting member 23. At the same time, the firstB hinge shaft 11 rotates via the first connecting cylindrical portion 61, and the secondB hinge shaft 14 rotates via the second connecting cylindrical portion 63. As a result, the first slide mechanism B1 and the second slide mechanism B2 of the slide mechanism B and the first friction torque generation mechanism C1 and the second friction torque generation mechanism C2 of the friction torque generation mechanism C operate simultaneously via the synchronous rotation mechanism A.

[0070] The above operation also occurs, just in reverse, when closing the first housing 2 and the second housing 3. The above operation also occurs whether the first housing 2 is operated primarily or the first housing 2 and the second housing 3 are operated simultaneously, because the synchronous rotation mechanism A operates to transmit its rotational drive force to the first-A hinge shaft 10 and the second-A hinge shaft 13, causing 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 to rotate simultaneously.

[0071] Alternatively, in the present invention, the slide mechanism B operates without using the synchronous rotation mechanism A. Furthermore, although the friction torque generating mechanism C enables the first and second housings 2 and 3 to be stably stopped and held in a free stop when the first and second housings 2 and 3 are opened or closed, the slide mechanism B operates without this mechanism.

[0072] Next, we will describe the operation of the slide mechanism B. The first slide mechanism B1 and second slide mechanism B2 that make up this slide mechanism B operate in synchronization via the synchronous rotation mechanism A, and the firstB hinge shaft 11 and the secondB hinge shaft 14 rotate in opposite directions, so that the first slide member 34 and the second slide member 35 are driven in opposite directions by the first slide mechanism drive belt 30 and the second slide mechanism drive belt 31, and the third slide member 36 and the fourth slide member 37 slide in opposite directions by the third slide mechanism drive belt 32 and the fourth slide mechanism drive belt 33. In this case, even if each of the first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 33 is made of a thin metal material, the first link member 70 and the second link member 71 of the first link mechanism B3 and the second link mechanism B4 assist the operation of one of the first slide mechanism drive belt 30 to the fourth slide mechanism drive belt 34 that is being rewound, and assist the operation of one of the first slide member 34 to the fourth slide member 37 connected to this slide mechanism drive belt that is being rewound, thereby preventing the belt from sagging and allowing for smooth sliding.

[0073] The engaging portions 3c (the one on the first housing 2 side is not shown) provided on the first housing 2 and the second housing 3 shown in FIG. 3, which are engaged with the engaging shaft portions 26g and 27g of the short second operating member 26b and the fourth operating member 27b of the first sliding mechanism B1 and the second sliding mechanism B2 of the sliding mechanism B of the opening and closing device 4, respectively, slide in directions away from each other against the pulling forces of the tension coil springs 3d, 3d, ... (only one of which is shown), thereby pulling the flexible display sheet 5a stretched across both surfaces of the first housing 2 and the second housing 3 outward, thereby preventing the flexible display sheet 5a from being wrinkled.

[0074] When the first housing 2 and the second housing 3 are opened or closed, the first friction torque generating mechanism C1 and the second friction torque generating mechanism C2 of the friction torque generating mechanism C operate together to generate friction torque as described above, so that the first housing 2 and the second housing 3 can be stably held in a free stop at any opening or closing angle, providing a comfortable operating feel.

[0075] 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 by 90° each, up to a total of 180°, further opening is prevented by the abutment of the mounting piece portion 45d of the first connecting member 45 connecting the 1A hinge shaft 10 and the 2A hinge shaft 13 with the locking step portions 16e, 17e provided on the 1A mounting member 16 and the 2A mounting member 17.

[0076] [Embodiment 2] 21 to 23 show another embodiment of the opening / closing device according to the present invention and a terminal device related to a notebook computer using this opening / closing device. In the opening / closing device 101 according to this embodiment 2, although not shown in the drawings, unlike the opening / closing device 4 shown in embodiment 1, the first mounting base 7 and the second mounting base 8 do not have guide rails 7n, 7n or 8n, 8n, and the tension coil springs 2d, 2d..., 3d, 3d... and the stopper mechanism D are not provided. However, other configurations, such as the synchronous rotation mechanism A, the slide mechanism B, and the friction torque generating mechanism C, are the same as those of embodiment 1.

[0077] Therefore, opening / closing device 101 of this second embodiment can open and close first housing 2 and second housing 3 between 0° and 360° as shown in FIGS. 21 to 23. Furthermore, first display sheet 104 and second display sheet 105 are individually attached to the top surfaces of first housing 102 and second housing 103 of terminal device 100 as shown in FIGS. 22 and 23. In this second embodiment, when first housing 102 and second housing 103 are opened or closed, first operating member 26a, third operating member 27a, second operating member 26b, and fourth operating member 27b shown in FIG. 17 of the first embodiment can be used to operate various operating mechanisms (not shown) provided inside or outside first housing 102 and second housing 103 via connecting members (not shown). In some cases, the first slide mechanism and second slide mechanism can be used simultaneously as a friction torque generating mechanism. As shown in Figure 17(a), the first operating member 26a and the third operating member 27a are provided with shaft support holes 26c, 27c, and also have operating shaft portions 26d, 27d at one end and connecting elongated holes 26e, 27e at the other end. 26b and Fourth As shown in FIG. 17(b), the actuating member 27b is provided with shaft support holes 26f, 27f, and also has actuating shaft portions 26g, 27g at one end and connecting elongated holes 26h, 27h at the other end. [Industrial Applicability]

[0078] As the present invention is configured as described above, it can be suitably used as an opening / closing device that can reduce the thickness of the first and second housings of a terminal device, or an opening / closing device for a terminal device in which a flexible display sheet is provided across both sides of the first and second housings, as well as an opening / closing device that can operate the internal and external mechanisms of the first and second housings, and as terminal devices that use these opening / closing devices. [Explanation of symbols]

[0079] A Synchronous rotation mechanism B Slide mechanism B1 First slide mechanism B2 Second slide mechanism B3 First link mechanism B4 Second link mechanism C. Friction torque generating mechanism C1 First friction mechanism generating mechanism C1-1 First friction torque generating part C1-2 Second friction torque generating section C2 Second friction mechanism generating mechanism C2-1 Third friction torque generating section C2-2 4th friction torque generating part D Stopper mechanism D1 First stopper mechanism D2 Second stopper mechanism 1. Terminal equipment 2. First enclosure 2a First mounting base housing 2b Guide groove 3 Second enclosure 3a Second mounting base housing 3b Guide groove 4 Switchgear 5 Display section 5a Flexible display sheet 5b Cushion seat 6a Slide guide groove 6b Slide guide groove 7 First mounting base 7a Wall 7b Storage section 7c Central partition wall 7d Side partition member 7e Side partition material 7h Mounting part 7i Mounting part 7j Mounting part 7k mounting part 7m mounting part 7n guide rail 7o mounting hole 7p mounting hole 7q Mounting hole 7r Mounting hole 7s mounting hole 7t mounting base 7u mounting base 7x Mounting shaft 7y Mounting shaft 7z axis branch 8 Second mounting base 8a wall 8b Storage section 8c Central partition wall 8d Side partition member 8e Side partition material 8h Mounting part 8i Mounting part 8j mounting part 8k mounting part 8m mounting part 8n guide rail 8o mounting hole 8p mounting hole 8q Mounting hole 8r mounting hole 8s mounting hole 8t mounting base 8u mounting base 8x mounting shaft 8y Mounting shaft 8z axis branch 9a Slide guide groove 9b Slide guide groove 10 No. 1A hinge shaft 11 1st B hinge shaft 12 1st C hinge shaft 13 No. 2A hinge shaft 14 2nd B hinge shaft 15 2nd C hinge shaft 16 No. 1A mounting member 18 No. 1B mounting member 20. 1st C mounting member 22 First D mounting member 24 No. 1E mounting member 17 Second A mounting member 19 Second B mounting member 21 Second C mounting member 23 Second D mounting member 25 Second E mounting member 26a First operating member 26b Second operating member 27a Third operating member 27b Fourth operating member 28 First synchronous drive belt 29 Second synchronous rotation drive belt 30 First slide mechanism drive belt 31 Second slide mechanism drive belt 32 Third slide mechanism drive belt 33 Fourth slide mechanism drive belt 34 First slide member 35 second slide member 36 Third slide member 37 Fourth slide member 38a Adjustment screw 38b Adjustment screw 38c Adjustment screw 38d Adjustment screw 39 1A Adjustment Member 40 1B adjustment member 41 2nd A adjustment member 42 Second B adjustment member 43 Shielding material 44 Side cover member 45 First connecting member 46 Second connecting member 47 Third connecting member 48 Fourth connecting member 49 Fifth connecting member 50 Sixth connecting member 51 7th connection section Material 52 8th connecting member 53 First pulley 53a No. 1a small pulley 53b No. 1b small pulley 53c No. 1c small pulley 53d Locking piece 54 No. 2 pulley 54a No. 2a small pulley 54b 2nd small pulley 54c 2c small pulley 54d Locking piece 55 Third pulley 55a 3a small pulley 55b 3b small pulley 55c 3c small pulley 55d Locking piece 56 4th pulley 56a No. 4a small pulley 56b 4b small pulley 56c 4c small pulley 56d Locking piece 57 5th pulley 57a 5a small pulley 57b 5b small pulley 57c 5c small pulley 57d Locking piece 58 No. 6 Pulley 58a No. 6a small pulley 58b No. 6b small pulley 58c 6c small pulley 58d Locking piece 59 7th pulley 59a No. 7a small pulley 59b No. 7b small pulley 59c No. 7c small pulley 59d Locking piece 60 No. 8 pulley 60a No. 8a small pulley 60b No. 8b small pulley 60c No. 8c small pulley 60d locking piece 61 1st connecting cylinder part 62 Presser washer 63 2nd connecting cylinder part 64 Presser washer 70 First link member 71 Second link member 72 First tightening screw 73 First friction washer 74 Disc spring 75 Second friction washer 76 Third friction washer 77 4th friction washer 78 Second tightening screw 79 5th friction washer 80 Disc spring 81 No. 6 friction washer 82 7th friction washer 84 Third tightening screw 85 8th friction washer 86 Disc spring 87 9th friction washer 88 No. 10 friction washer 89 11th friction washer 90 Fourth tightening screw 91 12th friction washer 92 Disc spring 93 13th friction washer 94 No. 14 friction washer 100 Terminal Equipment 101 Switchgear 102 1st cabinet 103 Second cabinet 104 1st display sheet 105 Second display sheet

Claims

1. The device has a first slide mechanism provided on a first mounting base attached to a first housing side and a second slide mechanism provided on a second mounting base attached to a second housing side, and the first slide mechanism includes a first B hinge shaft attached to the first mounting base side so as to be rotatable when the first housing is opened or closed, a second B hinge shaft attached to the second mounting base side, one end of which is wound around the first B hinge shaft with winding directions changed, the second B hinge shaft facing the first B hinge shaft and being rotatable when the second housing is opened or closed, a connecting member connecting the first B hinge shaft and the second B hinge shaft in a radial direction so as to be rotatable relative to each other, a first slide mechanism drive belt and a second slide mechanism drive belt wound around the first B hinge shaft with one end thereof wound in different winding directions at a predetermined interval, and a third slide mechanism drive belt and a fourth slide mechanism drive belt wound around the second B hinge shaft with one end thereof wound in different winding directions at a predetermined interval. a first slide member and a second slide member attached to the first mounting base side so as to be slidable in the radial direction of the first-B hinge shaft and formed by connecting the other end sides of the first slide mechanism drive belt and the second slide mechanism drive belt; a third slide member and a fourth slide member attached to the second mounting base side so as to be slidable in the radial direction of the second-B hinge shaft and formed by connecting the other end sides of the third slide mechanism drive belt and the fourth slide mechanism drive belt; a first link mechanism and a second link mechanism provided between the first slide member and the second slide member and between the third slide member and the fourth slide member, respectively; and stopper mechanisms provided on a first-A hinge shaft rotatably attached to the first mounting base and connected to the first-B hinge shaft, and a second-A hinge shaft rotatably attached to the second mounting base and connected to the second-B hinge shaft, for restricting the rotation angles of each of the first slide member and the second slide member. the stopper mechanism includes a locking step portion provided on each of a first A mounting member attached to the first mounting base and rotatably supporting the first A hinge shaft and a second A mounting member attached to the second mounting base and rotatably supporting the second A hinge shaft, and an attachment piece portion provided on a connecting member connecting one end side of the first A hinge shaft and the second A hinge shaft, An opening and closing device characterized in that when each of the first mounting base and the second mounting base rotates due to the opening and closing operation of the first housing and the second housing, the locking step portions of the first A mounting member and the second A mounting member each abut against the mounting piece portion of the connecting member, thereby restricting rotation.

2. 2. The opening and closing device according to claim 1, wherein a synchronous rotation mechanism is provided adjacent to the first slide mechanism and the second slide mechanism, and the synchronous rotation mechanism comprises the first A hinge shaft, the second A hinge shaft, a connecting member that connects the other ends of the first A hinge shaft and the second A hinge shaft to each other in the radial direction, and a first synchronous rotation drive belt and a second synchronous rotation drive belt that are wound around the first A hinge shaft and the second A hinge shaft at a predetermined interval and in different winding directions.

3. 2. The opening and closing device according to claim 1, wherein a friction torque generating mechanism is provided adjacent to the first slide mechanism and the second slide mechanism, and the friction torque generating mechanism comprises: a first C-hinge shaft rotatably attached to the first mounting base 7 and connected to the first B-hinge shaft; a second C-hinge shaft rotatably attached to the second mounting base and connected to the second B-hinge shaft; a connecting member connecting the first C-hinge shaft and the second C-hinge shaft to each other; a first friction torque generating unit composed of a fastening screw attached to the first C-hinge shaft, a friction washer, and a disc spring; and a second friction torque generating unit composed of a fastening screw attached to the second C-hinge shaft, a friction washer, and a disc spring.

4. 2. The opening and closing device according to claim 1, wherein the first housing and the second housing are slidably attached to the first mounting base and the second mounting base, and are configured to be able to slide by the first slide mechanism and the second slide mechanism, respectively.

5. 2. The opening and closing device according to claim 1, wherein 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 mounting base and the second mounting base.

6. 2. The opening and closing device according to claim 1, wherein a first link mechanism and a second link mechanism are provided between the slide members of the first slide mechanism and the second slide mechanism, respectively.

7. 2. The opening and closing device according to claim 1, wherein the first sliding mechanism and the second sliding mechanism, which operate when the first housing and the second housing are opened or closed, operate operating mechanisms inside the first housing and the second housing.

8. A terminal device characterized by using the opening and closing device according to any one of claims 1 to 7.

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