JP5246763B2 - Openable electronic device - Google Patents

Description

  The present invention relates to an openable electronic device such as a mobile phone or a PDA (Personal Digital Assistant).

For example, as described in Patent Document 1, an open / close type mobile phone has a configuration in which a first casing and a second casing are connected to each other so as to be foldable by a hinge portion. . In this type of mobile phone, a cylindrical first holding portion is formed at an intermediate portion at one end portion of the first housing, and a cylindrical second holding portion is formed at both sides at one end portion of the second housing. Then, the first holding part is disposed between the second holding parts, and in this state, one hinge shaft is continuously inserted into the first holding part and the second holding part to constitute the hinge part. The first casing and the second casing are configured to rotate around the hinge portion.
JP 2002-314659 A

  In such an open / close type mobile phone, an electronic component such as a keyboard is mounted on one of the first housing and the second housing, and an electronic device such as a display panel is mounted on the other housing. When the parts are mounted and the first casing and the second casing are opened around the hinge portion, the first casing and the second casing are opened at an angle of 180 °. Since the keyboard is difficult to operate while viewing the information displayed on the display panel, the first housing and the second housing are generally configured to open at an angle of about 165 °.

  However, in such an open / close type mobile phone, when the first housing and the second housing are opened at an angle of about 165 ° and are used by mistake, The first housing and the second housing are inverted from each other so that they are substantially “h” -shaped, that is, the end of the first housing and the end of the second housing at a position away from the hinge portion. Falls in a state lower than the hinge portion, a load is applied in the direction of opening both the end portion of the first housing and the end portion of the second housing at positions separated from each other across the hinge portion. Will join. For this reason, when the rigidity of the hinge portion is higher than that of the first housing and the second housing, the first housing and the second housing are bent and deformed with the hinge portion as a fulcrum. There is a problem that electronic components mounted on the first and second housings may be damaged.

  The problem to be solved by the present invention is that even if a load is applied to the end of the first casing and the end of the second casing in the direction of opening both, the first casing and the second casing It is an object of the present invention to provide an openable electronic device that can prevent deformation of the housing and prevent damage to an electronic component mounted on at least one of the first housing and the second housing.

In order to solve the above problems, the present invention includes the following components.
The invention according to claim 1 is a first housing, a second housing, an electronic component mounted on at least one of the first housing and the second housing, and the first housing A hinge portion that connects the first housing and the second housing so as to be openable and closable; and the hinge portion for at least one of the first housing and the second housing A fastening member for attaching the first housing, a hinge holding member attached to the one housing by the fastening member, and the first housing and the second housing rotatably held by the hinge holding member An openable electronic device comprising: a hinge shaft attached to the other housing of the first housing; and a buffer portion interposed between the fastening member and the first housing. is there.

Invention according to claim 2, said fastening member is a fastening body portion projecting through the other surface from one surface of the one housing through a portion of the hinge holding member of the hinge portion, the fastening A head provided at one end of the main body, and a buffer mounting portion provided at the other end of the fastening main body for attaching the buffer to the fastening main body. The openable electronic device according to claim 1 .

Third aspect of the present invention, the buffering portion is openable of claim 1 or claim 2, characterized in that said a two bullet contact with the elastic body of the fastening member and the one housing It is an electronic device.

The invention of claim 4, wherein the elastic range wherein the hinge portion of said resilient member, said first housing, according to claim 3, characterized in that it is set in each rigid range of the second housing The openable electronic device described in 1.

The invention according to claim 5 is characterized in that the elastic body is a spring member, an elastic resin member, or a combination of them, and the switchable electronic device according to claim 3 or claim 4 It is.

The invention according to claim 6 is characterized in that the hinge portion is fastened to both the first housing and the second housing by the fastening member. The openable electronic device according to any one of 5 .

  According to the present invention, when a load is applied to the end of the first casing and the end of the second casing in the direction of opening both, the load can be absorbed by the buffering function of the fastening member. Thus, the deformation of the first housing and the second housing can be prevented, so that the electronic component mounted on at least one of the first housing and the second housing is the first housing. It is possible to reliably prevent damage due to deformation of the housing and the second housing.

(Embodiment 1)
Hereinafter, a first embodiment in which the present invention is applied to a mobile phone will be described with reference to FIGS.
Here, FIG. 1 is a schematic perspective view showing Embodiment 1 of a mobile phone to which the present invention is applied, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. FIG. 4 is a perspective view showing a state where the upper case of the case is disassembled, FIG. 4 is a perspective view showing a state where the lower case and the middle case of the first case are disassembled in the mobile phone of FIG. 1, and FIG. It is the expansion perspective view which showed the principal part in the vicinity of a part.

6 is an enlarged cross-sectional view of the main portion showing the vicinity of the hinge portion in FIG. 2, and FIG. 7 shows a state in which the function of the first embodiment is applied by applying a load to the end portion on the second case side in FIG. FIG. 8 is a diagram schematically showing the internal configuration of the first case and the second case in the state of FIG. 2, and FIG. 9 is an enlarged view of the vicinity of the hinge portion of FIG. 10 and FIG. 10 are views showing a state in which a load is applied to the end portion on the second case side in the state of FIG. 8 and the function of the first embodiment is applied. FIG. 11 is an enlarged view of the vicinity of the hinge portion of FIG. FIG. 12 is a diagram showing a state in which the front and back surfaces of FIG.

As shown in FIG. 1 and FIG. 2, this cellular phone connects a first case 1 having a keyboard 2 and a second case 3 having a display panel 4 so as to be foldable by a hinge portion 5. When the first and second cases 1 and 3 are rotated and folded (not shown) around the center, the keyboard 2 of the first case 1 and the display panel 4 of the second case 3 face each other. Are configured to overlap.

In this case, the first case 1 includes an upper case 6, a lower case 7, and a middle case 8, as shown in FIGS. Here, for example, the upper case 6 and the lower case 7 are made of synthetic resin, and the middle case 8 is made of metal such as magnesium alloy. A circuit board 9 is attached to the middle case 8 as shown in FIGS. 2 and 4, and the circuit board 9 is used to control various functions of the mobile phone as shown in FIG. Various electronic components 10 such as an IC chip necessary for the above are mounted.

A keyboard 2 is provided in the upper case 6 located above the circuit board 9 as shown in FIGS. The keyboard 2 includes various keys necessary for communication functions such as a numeric keypad and a mode key, and each key is exposed on the upper side of the upper case 6. Further, as shown in FIG. 2, various electronic components 12 such as a battery pack 11 and an auxiliary circuit board are arranged in the lower case 7 located below the circuit board 9.

As shown in FIGS. 1 to 4, the second case 3 includes an inner case 13 that faces the upper case 6 of the first case 1 and an outer case 14 that is located on the opposite side. Inside the second case 3, as shown in FIG. 2, a panel substrate 15 is provided. Further, the panel substrate 15 is provided with the display panel 4 exposed to the outside corresponding to the opening 13 a of the inner case 13. The display panel 4 is a flat display panel such as a liquid crystal display panel or an EL (electroluminescence) display panel, and is configured to display information optically.

As shown in FIGS. 1 to 4, the hinge portion 5 is for pivotally connecting the first case 1 and the second case 2 and holds a pair of hinges attached to the first case 1 side. A member 16 and a pair of hinge shafts 17 rotatably attached to the pair of hinge holding members 16 and attached to the second case 3 side are provided.

The hinge holding member 16 is made of a highly rigid metal, and is disposed on the second case 3 side and the fixing portion 18 attached to the middle case 8 of the first case 1 as shown in FIGS. 4 and 5. And a bearing portion 19 that rotatably holds the hinge shaft 17. As shown in FIGS. 6 and 7, the hinge shaft 17 is rotatably attached to a bearing portion 19 of the hinge holding member 16, and both ends are attached to the second case 3 in this state. In this case, one of the pair of hinge shafts 17 is formed in a round bar shape (not shown), and the other is formed in a cylindrical shape so that the connection cable 27 is inserted through the inside thereof.

Further, as shown in FIG. 3, the upper case 6 of the first case 1 is provided with a pair of bearing cover portions 20 that cover the bearing portions 19 of the pair of hinge holding members 16 so as to protrude upward. Further, as shown in FIGS. 3 and 4, a mounting recess 21 into which the pair of bearing cover portions 20 are inserted is provided at the end of the second case 3 positioned on the hinge portion 5 side. . Both ends of the hinge shaft 17 are inserted and attached to the inside of the second case 3 located on both sides of the mounting recess 21 (see FIG. 6).

By the way, the hinge holding member 16 of the hinge part 5 is attached to the middle case 8 of the first case 1 by a fastening member 23 having a buffering function, as shown in FIGS. That is, as shown in FIGS. 6 and 7, the fastening member 23 includes a fastening portion 24 for attaching the hinge holding member 16 to the middle case 8 of the first case 1, and the fastening portion 24 and the middle case 8. And a coil spring 25 which is a buffer portion interposed therebetween.

As shown in FIGS. 6 and 7, the fastening portion 24 protrudes from the upper surface side to the lower surface side through the attachment hole 18 a provided in the fixing portion 18 of the hinge holding member 16 to the through hole of the middle case 8. A round bar-shaped fastening body portion 24a, a head portion 24b provided at the upper end portion of the fastening body portion 24a, and a lower end portion of the fastening body 24a projecting downward from the middle case 8 to connect the coil spring 25 to the fastening body. A buffer mounting portion 24c for mounting to the portion 24a is provided. As shown in FIGS. 6 and 7, the coil spring 25 serving as a buffer portion is configured to elastically contact both the buffer mounting portion 24 c of the fastening portion 24 and the middle case 8.

That is, as shown in FIG. 6, the coil spring 25 is disposed between the middle case 8 and the buffer mounting portion 24c. In this state, the buffer mounting portion 24c is moved by the spring force (elastic force) of the coil spring 25. By pushing down to the lower side of the case 8 and pulling down the head portion 24 b of the fastening portion 24, the head portion 24 b of the fastening portion 24 presses the fixing portion 18 of the hinge holding member 16 against the upper surface of the middle case 8. Is attached to the middle case 8 with elasticity (buffer properties). In this case, the elastic range of the coil spring 25 is set within the rigidity ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3. That is, when a load is applied to the hinge portion 5, the coil spring 25 is compressed and deformed before the hinge portion 5, the middle case 8, and the second case 3.

Thus, in this cellular phone, when the first case 1 and the second case 3 are rotated and folded (not shown) around the hinge shaft 17 of the hinge portion 5, the keyboard 2 and the second case 1 of the first case 1 are folded. When the first case 1 and the second case 2 are rotated and opened when the display panel 4 of the two cases 3 faces and overlaps with each other, as shown in FIG. 1, the keyboard 2 of the first case 1 The display panel 4 of the second case 3 is configured to open at an angle of approximately 165 ° with the display panel 4 exposed upward.

Next, a case where such a mobile phone is used will be described.
First, when the cellular phone is opened from the folded state, as shown in FIG. 6, the head 24 b of the fastening portion 24 is moved by the spring force of the coil spring 25 that is a buffer portion of the fastening member 23. The first case 1 and the second case 2 rotate about the hinge shaft 17 of the hinge portion 5 by pressing the fixing portion 18 against the upper surface of the middle case 8 and attaching the hinge holding member 16 to the middle case 8 with elasticity. 8 and 9, the first case 1 side and the second case 3 side are opened at an angle of approximately 165 °.

In this state, as shown in FIG. 10, a load (FIG. 10) is applied to the end of the second case 3 side at a position away from the hinge portion 5 in the direction in which the first case 1 side and the second case 3 side are opened. 10 (indicated by arrow F), the fixing portion 18 of the hinge holding member 16 of the hinge portion 5 pushes up the head 24b of the fastening portion 24 of the fastening member 23 as shown in FIGS. The spring 25 is compressed. As a result, the coil spring 25 absorbs the load by its spring force (elastic force), so that the second case 3 side is further rotated by the amount of compression of the coil spring 25 without the second case 3 side being bent and deformed. Will open.

That is, when a load is applied to the fastening member 23 in the direction in which both the first case 1 side and the second case 3 side are opened, as shown in FIG. The head 24b of the fastening portion 24 of the fastening member 23 is pushed up against the spring force (elastic force) of the coil spring 25, and the buffer mounting portion 24c of the fastening portion 24 is pulled up accordingly. 1 case 1 is pressed against the middle case 8 and compressed.

At this time, since the elastic range of the coil spring 25 is set within the respective rigid ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3, the coil spring 25 is compressed. First, since the coil spring 25 absorbs the load, the first case 1 side and the second case 3 side rotate about the hinge shaft 17 of the hinge portion 5 and open at an angle of about 165 ° or more, thereby The second case 3 side is prevented from being bent and deformed with the hinge shaft 17 of the hinge portion 5 as a fulcrum.

In this case, for example, when the first case 1 side and the second case 3 side are opened and used at an angle of approximately 165 °, the mobile phone is accidentally dropped while being turned upside down, as shown in FIG. As described above, the end portion on the first case 1 side and the end portion on the second case 3 side at a position away from the hinge portion 5 are lower than the hinge portion 5 on the contact surface S such as the ground or the floor. Even in the case of a collision, a load is applied in the direction in which the first case 1 side and the second case 3 side are opened as described above.

Also at this time, as described above, the coil spring 25 is compressed in accordance with the load, so that the load can be absorbed by the coil spring 25, whereby the first case 1 side and the second case 3 side are separated. Since it pivots around the hinge part 5 and opens at an angle of approximately 165 ° or more, the first case 1 side and the second case 3 side bend and deform with the hinge shaft 17 of the hinge part 5 as a fulcrum. Can be prevented.

Thus, according to this mobile phone, the hinge portion that connects the first case 1 on which electronic parts such as the keyboard 2 are mounted and the second case 3 on which electronic parts such as the display panel 4 are mounted in an openable and closable manner. 5, the hinge holding member 16 is attached to the fastening member 23 for attaching the hinge holding member 16 of the hinge portion 5 to the first case 1 by a coil spring 25 so that the hinge holding member 16 is attached. When a load is applied to the end portion of the first case 1 and the end portion of the second case 3 at positions away from the portion 5 in the direction of opening both, the load is absorbed by the buffer function of the coil spring 25 of the fastening member 23. As a result, it is possible to prevent the first case 1 and the second case 3 from being bent and deformed, and various electronic components incorporated in the first case 1 and the second case 3 are damaged. It is possible to prevent the reliably.

  In this case, the hinge portion 5 includes a hinge holding member 16 that is attached to the first case 1 by the fastening member 23, and a hinge shaft that is rotatably held by the hinge holding member 16 and attached to the second case 3. 17, the structure of the hinge portion 5 is simple, and the first case 1 and the second case 3 can be smoothly and reliably rotated around the hinge shaft 17 of the hinge portion 5. Thus, the first case 1 and the second case 3 can be folded well and opened from the folded state.

The fastening member 23 includes a fastening portion 24 for attaching the hinge holding member 16 of the hinge portion 5 to the middle case 8 of the first case 1, and between the fastening portion 24 and the middle case 8 of the first case 1. Since the coil spring 25 that is an interposed buffer portion is provided, the hinge holding member 16 of the hinge portion 5 is elastically attached to the middle case 8 of the first case 1 by the spring force (elasticity) of the coil spring 25. It can be attached with.

That is, the fastening portion 24 passes through the mounting hole 18a of the fixing portion 18 in the hinge holding member 16 of the hinge portion 5 and penetrates from the upper surface side of the middle case 8 to the lower surface side of the first case 1 and protrudes, for example, in a round bar shape. The fastening main body 24a, the head 24b provided at the upper end of the fastening main body 24a, and the lower end of the fastening main body 24a projecting downward from the middle case 8, and the coil spring 25 to the fastening main body 24a. By providing the buffer mounting portion 24c for mounting, the fixing portion 18 of the hinge holding member 16 is securely attached to the middle case 8 of the first case 1 by the spring force of the coil spring 25. be able to.

Further, the buffer portion is a coil spring 25, and its elastic range is set within the respective rigid ranges of the hinge portion 5, the first case 1, and the second case 3, so that the end portion of the first case 1 When a load is applied to the end of the second case 3 in the direction of opening both, the load is applied to the spring force (elastic force) of the coil spring 25 before the first case 1 and the second case 3 are bent and deformed. ), It is possible to reliably prevent the first case 1 and the second case 3 from being bent and deformed.

(Embodiment 2)
Next, a second embodiment in which the present invention is applied to a mobile phone will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS.
Here, FIG. 13 is an exploded perspective view showing an enlarged main part when the hinge holding member of the hinge part is attached to the middle case of the first case in the second embodiment of the cellular phone to which the present invention is applied.

14 is an enlarged cross-sectional view of the main part showing a state where the hinge holding member of the hinge part is attached to the middle case of the first case in FIG. 13, and FIG. 15 is an end part on the second case side in the state of FIG. It is the expanded sectional view of the principal part which showed the state which the load of FIG. Further, FIG. 15 is also a drawing in which main parts and main parts are described for explanation.
This cellular phone has a configuration in which a leaf spring 30 is used as a buffer portion of the fastening member 23, and the other configuration is the same as that of the first embodiment.

That is, the leaf spring 30 which is a buffering portion of the fastening member 23 is formed by bending the metal plate into a substantially U shape, and providing insertion holes 30a into which the fastening body portions 24a of the fastening portion 24 are inserted in order on opposite sides thereof. It is configured. As shown in FIG. 14, the lower portion of the fastening main body portion 24 a of the fastening portion 24 that protrudes to the lower side of the middle case 8 is inserted into each insertion hole 30 a of the leaf spring 30. The lower side is attached elastically to the buffer mounting portion 24c, and the upper side of the leaf spring 30 is configured to elastically contact the lower surface of the middle case 8 in this state.

As a result, the leaf spring 30 pushes down the buffer mounting portion 24c of the fastening portion 24 to the lower side of the middle case 8 by the spring force (elastic force), and pulls down the head portion 24b of the fastening portion 24. Reference numeral 24b is configured to press the fixing portion 18 of the hinge holding member 16 against the upper surface of the middle case 8 and attach the hinge holding member 16 to the middle case 8 with elasticity (buffer properties). Also in this case, the elastic range of the leaf spring 30 is set within the rigidity ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3.

Such a cellular phone also includes a hinge portion 5 that connects the first case 1 on which electronic components such as the keyboard 2 are mounted and the second case 3 on which electronic components such as the display panel 4 are mounted in an openable and closable manner. Since the hinge holding member 16 is attached to the fastening member 23 for attaching the hinge holding member 16 of the hinge portion 5 to the first case 1 by a leaf spring 30, the hinge holding member 16 is attached. Similarly, when a load is applied to the end portion of the first case 1 and the end portion of the second case 3 at positions away from the hinge portion 5 in the direction of opening both, the load is buffered by the leaf spring 30 of the fastening member 23. It can be absorbed by the function, which can prevent the first case 1 and the second case 3 from being bent and deformed, and various electronic components incorporated in each of the first case 1 and the second case 3 The Sonsuru can be reliably prevented.

That is, when a load is applied to the end of the second case 3 at a position away from the hinge portion 5 in the state shown in FIG. 14 in the direction of opening the first case 1 and the second case 3, FIG. As shown, the fixing portion 18 of the hinge holding member 16 of the hinge portion 5 pushes up the head portion 24 b of the fastening portion 24 of the fastening member 23 against the spring force of the leaf spring 30 to compress the leaf spring 30. Thereby, since the leaf spring 30 absorbs the load, the second case 3 is further rotated and opened by the amount compressed by the leaf spring 30 without the second case 3 being bent and deformed.

At this time, since the elastic range of the leaf spring 30 is set within the rigidity ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3, when the leaf spring 30 is compressed, The first case 1 and the second case 3 rotate about the hinge portion 5 and the hinge shaft 17 to open at an angle of about 165 ° or more, whereby the second case 3 bends with the hinge shaft 17 of the hinge portion 5 as a fulcrum. Deformation can be prevented.

Also in this case, for example, when the first case 1 and the second case 3 are opened and used at an angle of approximately 165 °, the mobile phone is accidentally dropped while being turned upside down, Even when the end portion of the first case 1 and the end portion of the second case 3 at a distant position collide with the contact surface S such as the ground or the floor in a state lower than the hinge portion 5, A load is applied in the direction in which the first case 1 and the second case 3 are opened.

Also at this time, as described above, the leaf spring 30 is compressed in accordance with the load, so that the load can be absorbed by the leaf spring 30, whereby the first case 1 and the second case 3 are connected to the hinge portion. Therefore, the first case 1 and the second case 3 can be prevented from being bent and deformed with the hinge shaft 17 of the hinge portion 5 as a fulcrum. it can.

(Embodiment 3)
Next, a third embodiment in which the present invention is applied to a mobile phone will be described with reference to FIGS. Also in this case, the same portions as those in the first embodiment shown in FIGS.
Here, FIG. 16 is an exploded perspective view showing an enlarged main part when the hinge holding member of the hinge part is attached to the middle case of the first case in the third embodiment of the cellular phone to which the present invention is applied.

17 is an enlarged cross-sectional view of the main part showing the hinge holding member of the hinge part attached to the middle case of the first case in FIG. 16, and FIG. 18 is an end part on the second case side in the state of FIG. It is an expanded sectional view for description when a load is added to and the function of Embodiment 3 acts.
This mobile phone has a configuration in which an elastic member 35 such as rubber is used as a buffer portion of the fastening member 23, and the other configuration is the same as that of the first embodiment.

That is, the elastic member 35 serving as a buffer portion of the fastening member 23 is made of, for example, a synthetic resin having elasticity such as rubber or elastomer, and is formed in a substantially cylindrical shape as a whole. The insertion hole 35a into which is inserted is provided. As shown in FIG. 17, the elastic member 35 has a lower portion of the fastening body portion 24 a of the fastening portion 24 that protrudes downward from the middle case 8 and is inserted into the insertion hole 35 a of the elastic member 35. Are elastically attached to the buffer mounting portion 24c, and the upper surface of the elastic member 35 is configured to elastically contact the lower surface of the middle case 8 in this state.

Thereby, the elastic member 35 pushes down the buffer mounting portion 24c of the fastening portion 24 to the lower side of the middle case 8 by its elastic force, and elastically pulls down the head portion 24b of the fastening portion 24, whereby the head portion 24b. Is configured to press the fixing portion 18 of the hinge holding member 16 against the upper surface of the middle case 8 and attach the hinge holding member 16 to the middle case 8 with elasticity (buffer properties). In this case as well, the elastic range of the elastic member 35 is set within the rigidity ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3.

Such a cellular phone also includes a hinge portion 5 that connects the first case 1 on which electronic components such as the keyboard 2 are mounted and the second case 3 on which electronic components such as the display panel 4 are mounted in an openable and closable manner. Since the hinge holding member 16 is attached to the fastening member 23 for attaching the hinge holding member 16 of the hinge portion 5 to the first case 1 by the elastic member 35, the hinge holding member 16 is attached. Similarly, when a load is applied to the end portion of the first case 1 and the end portion of the second case 3 at positions away from the hinge portion 5 in the direction of opening both, the load is absorbed by the buffering function of the fastening member 23. Thus, the bending deformation of the first case 1 and the second case 3 can be prevented, and it is ensured that various electronic components incorporated in the first case 1 and the second case 3 are damaged. It is possible to prevent in.

That is, when a load is applied to the end of the second case 3 at a position away from the hinge 5 in the state shown in FIG. 17 in the direction in which the first case 1 and the second case 3 are opened, FIG. As shown, the fixing portion 18 of the hinge holding member 16 of the hinge portion 5 pushes up the head portion 24 b of the fastening portion 24 of the fastening member 23 against the elastic force of the elastic member 35 and compresses the elastic member 35. Thereby, since the elastic member 35 absorbs the load, the second case 3 is further rotated and opened as much as the elastic member 35 is compressed without the second case 3 being bent and deformed.

Also at this time, since the elastic range of the elastic member 35 is set within the rigidity ranges of the hinge portion 5, the middle case 8 of the first case 1, and the second case 3, the elastic member 35 is compressed and deformed. In addition, the first case 1 and the second case 3 rotate about the hinge shaft 17 of the hinge portion 5 and open at an angle of about 165 ° or more, whereby the second shaft 3 is pivoted about the hinge shaft 17 of the hinge portion 5. It is possible to prevent the case 3 from being bent and deformed.

Also in this case, for example, when the first case 1 and the second case 3 are opened and used at an angle of approximately 165 °, the mobile phone is accidentally dropped while being turned upside down, Even when the end portion of the first case 1 and the end portion of the second case 3 at a distant position collide with the contact surface S such as the ground or the floor in a state lower than the hinge portion 5, A load is applied in the direction in which the first case 1 and the second case 3 are opened.

Also at this time, as described above, since the elastic member 35 is compressed according to the load, the load can be absorbed by the elastic member 35, whereby the first case 1 and the second case 3 are connected to the hinge portion. Therefore, the first case 1 and the second case 3 can be prevented from being bent and deformed with the hinge shaft 17 of the hinge portion 5 as a fulcrum. it can.

In the first to third embodiments, the case where the coil spring 25, the leaf spring 30, and the elastic member 35 are used as an example of the buffer portion has been described. However, the present invention is not limited to this. It may be used, or may be a combination of the above-described spring member and elastic member, or a combination of these with a viscoelastic fluid or a damper device.

In the first to third embodiments, the fastening main body portion 24a is provided with a male screw portion, the fastening mounting portion 24c is provided with a female screw portion, and the initial compression amount when the elastic body members 25, 30, and 35 are assembled can be varied. By doing so, the opening angle with respect to the first case 1 when a load is applied to the tip of the second case 3 may be adjusted.
Furthermore, you may comprise a buffer part so that the fastening main-body part 24a itself of the said Embodiment 1-3 may have the function.

In the first to third embodiments, the case where the buffer portions such as the coil spring 25, the leaf spring 30, and the elastic member 35 are directly elastically contacted with both the middle case 8 and the buffer mounting portion 24c of the fastening portion 24 will be described. However, the present invention is not limited thereto, and for example, a spacer member such as a washer is interposed between the buffer portion and the middle case 8 and between the buffer portion and the buffer mounting portion 24c, so that the coil spring 25, the leaf spring 30, and the elastic You may comprise so that buffer parts, such as the member 35, may be indirectly elastically contacted with both the middle case 8 and the buffer attachment part 24c of the fastening part 24. FIG.

In the first to third embodiments, the case where the hinge holding member 16 of the hinge portion 5 is configured to be attached to the first case 1 by the fastening member 23 is described. The hinge holding member 16 may be attached to the second case 2 by the fastening member 23. In this case, the hinge shaft 17 of the hinge part 5 may be configured to be attached to the first case 1.

Further, not limited to this, for example, as in a modification shown in FIG. 19, two sets of hinge holding members 16 of the hinge portion 5 are prepared, and one hinge holding member 16 is moved to the first case 1 side by the fastening member 23. The other hinge holding member 16 is attached to the second case 3 side by the fastening member 23, and the hinge shaft 17 is rotatably attached to the two hinge holding members 16 in this state. 1 and the 2nd case 3 may be connected so that folding is possible. If comprised in this way, since the fastening member 23 is provided in both the 1st case 1 side and the 2nd case 3 side, it has a buffer effect of about twice compared with Embodiment 1-3.

Further, in the first to third embodiments, the mobile phone in which electronic parts such as the keyboard 2 are mounted on the first case 1 and the electronic parts such as the display panel 4 are mounted on the second case 3 has been described. For example, the present invention can also be applied to a mobile phone in which both a keyboard and a display panel are mounted on the first case and an electronic component is not mounted on the second case.

In the first to third embodiments and the modifications thereof, the case where the present invention is applied to a mobile phone has been described. However, the present invention is not necessarily a mobile phone. For example, a camera, a PDA (personal digital assistant), a notebook type It can be widely applied to various openable electronic devices such as personal computers, wearable personal computers, calculators, and electronic dictionaries.

It is the perspective view which showed Embodiment 1 of the mobile telephone to which this invention is applied. It is sectional drawing in the AA arrow of FIG. FIG. 2 is a perspective view illustrating a state where an upper case of a first case is disassembled in the mobile phone of FIG. FIG. 2 is a perspective view showing a state in which a lower case and an intermediate case of the first case are disassembled in the mobile phone of FIG. 1. FIG. 5 is an enlarged perspective view showing a main part in the vicinity of the hinge part of FIG. 4. It is an expanded sectional view of the principal part which showed the hinge part vicinity in FIG. FIG. 7 is an enlarged cross-sectional view of a main part illustrating a state in which a load is applied to an end portion on the second case side in FIG. 6 and a coil spring is compressed. It is the figure which showed schematically the internal structure of the 1st case and the 2nd case in the state of FIG. It is the figure which expanded and showed the hinge part vicinity of FIG. FIG. 9 is a diagram illustrating a state in which a load is applied to an end portion on the second case side and the coil spring is compressed in the state of FIG. 8. It is the figure which expanded and showed the hinge part vicinity of FIG. It is the figure which showed the state which fell on contact surfaces, such as the ground, in the state reversed in FIG. It is the disassembled perspective view which expanded and showed the principal part at the time of attaching the hinge holding member of a hinge part to the middle case of 1st case in Embodiment 2 of the mobile telephone to which this invention is applied. It is the expanded sectional view of the principal part which showed the state which attached the hinge holding member of the hinge part to the middle case of the 1st case in FIG. It is the expanded sectional view of the principal part which showed the state where the load was added to the edge part by the side of the 2nd case in the state of FIG. 14, and the leaf | plate spring was compressed. It is the disassembled perspective view which expanded and showed the principal part at the time of attaching the hinge holding member of a hinge part to the middle case of 1st case in Embodiment 3 of the mobile telephone to which this invention is applied. It is an expanded sectional view of the principal part which showed the state which attached the hinge holding member of the hinge part to the middle case of the 1st case in FIG. It is the expanded sectional view of the principal part which showed the state where the load was added to the edge part by the side of the 2nd case in the state of FIG. 17, and the elastic member was compressed. It is the figure which showed the state which fell on contact surfaces, such as the ground, in the state reversed upside down in the modification of the mobile telephone to which this invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st case 2 Keyboard 3 2nd case 4 Display panel 5 Hinge part 6 Upper case 7 Lower case 8 Middle case 9 Circuit board 16 Hinge holding member 17 Hinge shaft 18 Fixing part 19 Bearing part 23 Fastening member 24 Fastening part 24a Fastening body Portion 24b Head 24c Buffer mounting portion 25 Coil spring 30 Leaf spring 35 Elastic member

Claims (6)

A first casing, a second casing, an electronic component mounted on at least one of the first casing and the second casing, the first casing, and the second casing A hinge part that connects the housing to be openable and closable ;
A fastening member for attaching the hinge portion relative to at least one of the housing of said first casing and the second casing,
A hinge holding member attached to the one housing by the fastening member;
A hinge shaft that is rotatably held by the hinge holding member and is attached to the other of the first housing and the second housing;
A buffer portion interposed between the fastening member and the one housing;
Closing type electronic device, characterized in that it comprises. Wherein the fastening member includes a fastening body portion projecting through the other surface from one surface of the one housing through a portion of the hinge holding member of the hinge portion, provided on one end portion of the fastening body portion closing according to claim 1, characterized in that it comprises a head, and a buffer attachment part for attaching said buffer part provided at the other end portion of the fastening body portion relative to the fastening body portion Electronic equipment. The buffer portion is retractable electronic device according to claim 1 or claim 2, characterized in that both the said one of the housing and the fastening member is an elastic body elastically contacting. 4. The openable electronic device according to claim 3 , wherein an elastic range of the elastic body is set in each rigid range of the hinge portion, the first housing, and the second housing. 5. machine. The openable electronic device according to claim 3 or 4 , wherein the elastic body is a spring member, an elastic resin member, or a combination thereof. The opening and closing according to any one of claims 1 to 5 , wherein the hinge portion is fastened to both the first housing and the second housing by the fastening member. Electronic equipment.

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