JP5686245B2 - Portable device - Google Patents

Description

  The present invention relates to a portable device such as a personal digital assistant (PDA) and a cellular phone.

  For example, a portable device such as a cellular phone has a configuration in which an upper case and a lower case are provided and a module is incorporated in the upper case and the lower case, as described in Patent Document 1. It has been.

JP 2004-343751 A

  This type of portable device has a fitting rib on the outer periphery of the upper case, a fitting groove for fitting the fitting rib of the upper case on the outer periphery of the lower case, and the upper case and the lower case overlap. In this case, the fitting rib and the fitting groove are configured to fit each other. In this case, the fitting rib and the fitting groove are formed in a substantially cross shape so as to regulate the positions of the inner and outer directions of the upper case and the lower case and the peripheral direction perpendicular thereto.

  However, in such a conventional portable device, the upper case and the lower case are overlapped, and the fitting rib and the fitting groove are fitted to each other, and a plurality of positions of the upper case and the lower case are screwed. Since the module built in the upper case and the lower case hardly contributes to the rigidity of the upper case and the lower case, when the module receives an impact such as dropping, the module There is a problem that it is easy to move inside the lower case, and electronic components such as the display panel and circuit board of the module are easily damaged.

  Further, in such a conventional portable device, it is desired to reduce the thickness of each of the upper case and the lower case as the display panel has a larger screen and higher density mounting. If the thickness of the lower case is simply reduced, not only the above-mentioned problem is likely to occur, but also the problem that the entire device is liable to be twisted or warped due to an external impact.

  The problem to be solved by the present invention is to provide a portable device that can enhance the rigidity of the entire device and protect the internal components well.

The invention described in 請 Motomeko 1 has an upper case and a lower case disposed below the upper case, the portable device and a case in which is disposed inside the upper case and the lower case, A first fitting portion for restricting each position in the inner and outer directions of the upper case and the lower case and in the circumferential direction of the upper case and the lower case, and coupling the upper case and the lower case; A second fitting portion for restricting each position in the inner and outer directions of the case and the middle case and in the circumferential direction of the upper case and the middle case, and coupling the upper case and the middle case ; The first fitting portion includes a frame-shaped outer rib provided along a peripheral edge portion on the lower surface of the upper case, and a ring provided along the peripheral edge portion on the upper surface of the lower case to engage the outer rib. A plurality of cutout grooves provided in an inner rib located inside the outer rib in the upper case, and a plurality of cutout grooves provided in an edge of the annular groove portion in the lower case. It is a portable apparatus characterized by including a plurality of protrusions fitted to the.

  According to the present invention, the first fitting portion can restrict the positions of the upper case and the lower case in the inner and outer directions and the circumferential direction thereof to connect the upper case and the lower case, and the second fitting The upper case and the middle case can be coupled by regulating the positions of the upper case and the middle case in the inner and outer directions and the circumferential direction thereof.

  For this reason, the upper case, the lower case, and the middle case can be connected to each other, so that the rigidity of the entire device can be increased, so that when receiving an impact from the outside, the upper case, the lower case, and the middle case Therefore, it is possible to reliably prevent deformation and displacement of each case, and it is possible to satisfactorily protect the components incorporated inside.

It is the front view which showed one Embodiment which applied this invention to the portable information terminal. FIG. 2 is a side view of the portable information terminal shown in FIG. 1. It is an expanded sectional view in the AA arrow of the portable information terminal shown in FIG. FIG. 4 is a cross-sectional view illustrating an enlarged main part of the portable information terminal shown in FIG. 3. FIG. 2 is an enlarged perspective view illustrating the portable information terminal shown in FIG. 1 in an upper case, a middle case, and a lower case. FIG. 6 is an exploded perspective view showing the middle case of the portable information terminal shown in FIG. FIG. 6 is an exploded perspective view illustrating a state where an intermediate case is removed from the portable information terminal shown in FIG. 5. FIG. 2 is an enlarged perspective view showing one side portion of the portable information terminal shown in FIG. 1 as viewed obliquely from below. FIG. 3 is an enlarged cross-sectional view of the portable information terminal shown in FIG. FIG. 10 is an enlarged perspective view showing the upper case and the screw fitting of the portable information terminal shown in FIG. 9 in an exploded manner. In the portable information terminal shown in FIG. 10, a state in which the screwing bracket is attached to the upper case is shown, and (a) shows a state in which the screwing bracket is inserted into the mounting groove provided on the inner rib of the upper case. (B) is the figure which showed the state which attached the screwing metal fitting to the attachment groove | channel of the upper case.

Hereinafter, an embodiment in which the present invention is applied to a portable information terminal will be described with reference to FIGS.
As shown in FIGS. 1 to 3, the portable information terminal includes an upper case 1, a lower case 2 that is attached to the lower part of the upper case 1, and an inside of the upper case 1 and the lower case 2. Case 3 is provided.

  In this case, as shown in FIGS. 1 and 3, the middle case 3 is provided with the input display portion 4 and the keyboard portion 5 exposed on the upper side of the upper case 1. The middle case 3 is provided with a circuit board 6 as shown in FIGS. As shown in FIGS. 3 to 5, various electronic components 7 necessary for information processing are provided on the lower surface of the circuit board 6 corresponding to the lower side of the input display unit 4.

  As shown in FIGS. 3 and 4, the input display unit 4 includes a transparent touch panel 4a and a display panel 4b. The transparent touch panel 4a is configured to input information by touching the surface thereof. The display panel 4b is a flat display panel such as a liquid crystal display panel or an EL (electroluminescence) display panel, and is disposed below the transparent touch panel 4a. In this state, various types of information associated with information processing are electro-optically transmitted. Configured to display automatically.

  Thereby, the input display unit 4 is configured so that information displayed on the display panel 4b can be seen from above through the transparent touch panel 4a, and the transparent touch panel 4a is touch-operated while viewing the information displayed on the display panel 4b. ing. As shown in FIG. 1, the keyboard unit 5 includes various keys necessary for information processing such as character keys, cursor keys, and function keys.

  Further, as shown in FIGS. 1 and 5 to 7, the upper case 1 is provided with a display opening 8 a corresponding to the input display portion 4, and a key opening 8 b corresponds to the keyboard portion 5. Is provided. Further, as shown in FIGS. 5 to 8, the lower case 2 is provided with a battery storage portion 9 corresponding to the lower side of the keyboard portion 5.

  By the way, as shown in FIGS. 3 to 7, the upper case 1 and the lower case 2 have inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1) and peripheral directions (for example, front and rear in FIG. 1). The first fitting portion 11 is provided to regulate and fit each position in the direction of the arrow Y), and the upper case 1 and the middle case 3 are as shown in FIGS. A second fitting portion 12 that fits while restricting positions in the inner and outer directions (for example, the arrow X direction that is the width direction in FIG. 1) and the peripheral direction (for example, the arrow Y direction that is the front and rear direction in FIG. 1). Is provided.

  As shown in FIGS. 3 to 7, the first fitting portion 11 includes a frame-shaped outer rib 13 provided along the peripheral portion on the lower surface of the upper case 1 and the peripheral portion on the upper surface of the lower case 2. A plurality of notched grooves 15a provided in the inner case 15 provided in the upper case 1 and positioned on the inner side of the outer rib 13. And a plurality of protrusions 16 provided at the edge of the annular groove 14 in the lower case 2 and fitted into the plurality of cutout grooves 15a of the upper case 1. The first fitting portion 11 is configured such that the waterproof packing 17 is mounted in the annular groove portion 14.

  Thereby, as shown in FIGS. 4 and 7, when the lower case 2 is attached below the upper case 1, the first fitting portion 11 has the frame-shaped outer rib 13 of the upper case 1. In addition to restricting deformation of the upper case 1 and the lower case 2 in the inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1), the lower case The frame-shaped outer rib 13 of the upper case 1 is pressed against the waterproof packing 17 mounted in the two annular grooves 14.

  In this case, the waterproof packing 17 is a ring-shaped member made of an elastic material such as rubber, and is disposed in the annular groove 14 of the lower case 2 as shown in FIGS. When the frame-shaped outer rib 13 of the upper case 1 is fitted into the annular groove 14 of the lower case 2, the upper case 1 and the lower case are pressed by being pressed into the annular groove 14 by the frame-shaped outer rib 13. 2 to ensure waterproofness.

  As shown in FIGS. 4 and 7, the first fitting portion 11 includes a plurality of cuts provided on the inner rib 15 of the upper case 1 when the lower case 2 is attached to the lower portion of the upper case 1. A plurality of protrusions 16 provided at the edge of the annular groove 14 in the lower case 2 are inserted and fitted into the notch groove 15a, respectively, so that the peripheral direction of the upper case 1 and the lower case 2 (for example, The positional deviation in the arrow Y direction (the front-rear direction in FIG. 1) is restricted.

  On the other hand, as shown in FIGS. 4 to 6, the second fitting portion 12 includes a plurality of groove portions 18 provided along the peripheral edge portion on the lower surface located inside the inner rib 15 of the upper case 1, and A plurality of protrusions 19 are provided along the peripheral edge of the upper surface of the middle case 3 and fitted into the plurality of grooves 18 of the upper case 1. When the middle case 3 is mounted in the upper case 1, the second fitting portion 12 is configured such that the plurality of protrusions 19 of the middle case 3 are inserted and fitted into the plurality of grooves 18 of the upper case 1, respectively. It is configured.

  Thereby, as shown in FIGS. 4 to 6, the second fitting portion 12 is inserted and fitted into the plurality of grooves 18 of the upper case 1 by inserting the plurality of protrusions 19 of the middle case 3 respectively. While restricting the deformation of the upper case 1 and the middle case 3 in the inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1), the peripheral direction between the upper case 1 and the middle case 3 (for example, FIG. 1) The positional deviation in the direction of the arrow Y, which is the front-rear direction) is restricted.

  In this case, as shown in FIG. 4, a protruding contact 20 that contacts the inner surface of the outer rib 13 provided in the upper case 1 is provided on the outer peripheral surface of the middle case 3. The contact portion 20 of the middle case 3 is a frame-like shape provided on the upper case 1 when the plurality of protrusions 19 of the middle case 3 are inserted and fitted into the plurality of grooves 18 of the upper case 1. By contacting the inner surface of the outer rib 13, the frame-shaped outer rib 13 of the upper case 1 and the annular groove 14 of the lower case 2 in the first fitting portion 11 are in the thickness direction (see FIG. 4 is configured to restrict deformation in the right direction).

  By the way, as shown in FIG. 8, the lower case 2 and the middle case 3 are in the inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1) and the peripheral direction (for example, the front and rear direction in FIG. 1). The 3rd fitting part 21 which regulates and positions each position of the arrow Y direction) is provided. The third fitting portion 21 includes a plurality of protrusions 22 provided along the peripheral edge of the lower surface of the middle case 3 and a plurality of protrusions of the middle case 3 provided along the peripheral edge in the lower case 2. And a plurality of protruding ribs 23 into which the portion 22 is fitted.

  Thereby, as shown in FIG. 8, the third fitting portion 21 has a plurality of protrusions 22 of the middle case 3 inserted and fitted between the plurality of protrusion ribs 23 of the lower case 2. While restricting deformation of the case 2 and the middle case 3 in the inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1), the peripheral direction between the lower case 2 and the middle case 3 (for example, front and rear in FIG. 1) The positional deviation in the direction indicated by the arrow Y) is restricted.

  As shown in FIG. 8, the upper case 1, the lower case 2, and the middle case 3 have a plurality of a total of eight places, that is, the upper side, the lower side, and the two front and rear positions located in the middle between the upper and lower sides. The screw member 25 is configured to be coupled. In other words, the lower case 2 is provided with a plurality of screw insertion holes 26 in a total of eight places, two places in the front and back, located in the middle between the upper side, the lower side, and the upper and lower sides. The middle case 3 is provided with a plurality of boss mounting portions 27 corresponding to the screw insertion holes 26 of the lower case 2 except for locations located on both sides of the input display portion 4 and locations corresponding to the battery storage portion 9. It has been.

  In the upper case 1, as shown in FIGS. 5 to 7, a plurality of bosses 28 having screw holes into which the screw members 25 are screwed except for only two positions located on both sides of the input display unit 4, It is provided corresponding to the boss mounting portion 27 of the middle case 3. Each boss 28 of the upper case 1 is inserted into each boss mounting portion 27 of the middle case 3 when the middle case 3 is disposed in the upper case 1, and the lower case 2 disposed at the lower part of the middle case 3. The screw insertion holes 26 are configured so as to correspond to the respective screw insertion holes 26.

  In this case, as shown in FIGS. 9 to 11, the upper case 1 corresponds to the screw insertion holes 26 of the lower case 2 at locations where the pair of screw fittings 30 are located on both sides of the input display unit 4. Is provided. As shown in FIGS. 9 and 11, the screw fitting 30 is detachably attached to the inner rib 15 in the upper case 1, and its lower end portion extends to the lower side of the middle case 3, and this extended lower end portion Is bent along the lower surface of the middle case 3, and a screw hole 31 is provided at the bent portion.

  That is, as shown in FIGS. 9 and 10, the screw fitting 30 has a metal plate considerably formed at the upper portion corresponding to the inner rib 15 in the upper case 1 with an L-shaped attachment portion 30a. The intermediate portion 30b extending to the upper case 1 is bent so as to be slightly inclined toward the upper case 1, and a bent portion 30c is bent at a substantially right angle toward the lower portion of the intermediate portion 30b. The screw hole 31 is provided in 30c.

  Further, as shown in FIGS. 10 and 11, the inner rib 15 provided in the upper case 1 is provided with a mounting groove 32 to which the mounting portion 30a of the screw fitting 30 is detachably mounted. The mounting groove 32 has an insertion portion 32a into which the mounting portion 30a of the screwing metal fitting 30 is inserted from below, and the mounting portion 30a of the screwing metal fitting 30 is one of the front and rear directions of the upper case (left and right in FIG. 11). 11 and an engaging portion 32b that slides and engages on the right side.

  As a result, as shown in FIG. 11A and FIG. 11B, the screw fitting 30 has a mounting portion 30 a below the insertion portion 32 a of the mounting groove 32 provided in the inner rib 15 of the upper case 1. When the inserted attachment portion 30a reaches the upper end of the insertion portion 32a, the attachment portion 30a is in one of the front and rear directions (left and right in FIG. 11) (right side in FIG. 11). By sliding, the attachment portion 30a is configured to be attached to the upper case 1 by engaging with the engagement portion 32b.

  Further, as shown in FIG. 9, when the middle case 3 is disposed in the upper case 1, the screw fitting 30 has a bent portion 30c located below the middle case 3, and in this state, the upper portion When the lower case 2 is arranged at the lower part of the case 1, the screw hole 31 of the bent portion 30 c corresponds to the screw insertion hole 26 of the lower case 2, and the screw hole 31 extends from the screw insertion hole 26 of the lower case 2. When the inserted screw member 25 is screwed and tightened, the upper case 1 and the lower case 2 positioned on both sides of the input display unit 4 are coupled.

Next, the case where such a portable information terminal is assembled will be described.
First, as shown in FIGS. 5 and 6, the input display unit 4, the keyboard unit 5, and the circuit board 6 are attached to the middle case 3. At this time, as shown in FIG. 5, various electronic components 7 are attached to the lower surface of the circuit board 6 in advance. The input display unit 4 and the keyboard unit 5 are electrically connected to the circuit board 6.

  Next, as shown in FIG. 10 and FIG. 11, screw fittings 30 are attached to locations located on both sides of the input display unit 4 in the upper case 1. At this time, as shown in FIG. 11A, the attachment portion 30a of the screw fitting 30 is inserted into the insertion portion 32a of the attachment groove 32 provided in the inner rib 15 of the upper case 1 from below.

  When the attachment portion 30a of the screw fitting 30 reaches the upper end of the insertion portion 32a of the attachment groove 32, the attachment portion 30a of the screw attachment 30 is moved to the upper case as shown in FIG. 1 is slid in one of the front and rear directions (right and left in FIG. 11) (right in FIG. 11), and the mounting portion 30a of the screw fitting 30 is engaged with the engaging portion 32b of the mounting groove 32. Thereby, the screw fitting 30 is attached to the upper case 1.

  Thereafter, the middle case 3 is disposed in the upper case 1. At this time, the middle case 3 is inserted between the pair of screw fittings 30 provided on the upper case 1, and the bent portions 30 c of the pair of screw fittings 30 are positioned below the middle case 3. Deploy. At this time, the input display unit 4 is made to correspond to the display opening 8 a of the upper case 1, and the keyboard unit 5 is made to correspond to the key opening 8 b of the upper case 1.

  In this state, each boss 28 of the upper case 1 and each boss mounting portion 27 of the middle case 3 are made to correspond to each other, and the upper case 1 and the middle case 3 are coupled by the second fitting portion 12. At this time, as shown in FIG. 6, the plurality of protrusions 19 provided along the peripheral edge on the upper surface of the middle case 3 are provided in the plurality of grooves 18 provided along the peripheral edge on the lower surface of the upper case 1. Insert and fit each.

  As a result, the upper case 1 and the lower case 3 are restricted from being deformed in the inner and outer directions (for example, the direction of the arrow X in the width direction in FIG. 1) of the side surfaces of the upper case 1 and the upper case. 1 and the middle case 3 are restrained from being displaced in the peripheral direction (for example, the arrow Y direction which is the front-rear direction in FIG. 1), and are coupled in this state.

  Further, at this time, as shown in FIG. 4, the protruding contact portion 20 provided on the outer peripheral surface of the middle case 3 contacts the inner surface of the frame-shaped outer rib 13 provided on the upper case 1. . Also in this case, the upper case 1 and the middle case 3 have an inner direction (right direction in FIG. 4) in which the frame-shaped outer rib 13 of the upper case 1 and the annular groove 14 of the lower case 2 are in the thickness direction. It is joined in a state where the deformation to is restricted.

  When the middle case 3 is thus coupled to the upper case 1, the bosses 28 of the upper case 1 are inserted into the boss mounting portions 27 of the middle case 3, and the peripheral portion of the input display unit 4 is the upper case 1. The display opening 8a is exposed to the outside of the upper case 1 through the display opening 8a, and the keys of the keyboard 5 are inserted into the key openings 8b of the upper case 1 to be exposed to the top. It is exposed outside the case 1.

  Next, the waterproof packing 17 is mounted in the annular groove 14 of the lower case 2. In this state, as shown in FIGS. 3 and 4, the upper case 1 and the lower case 2 to which the middle case 3 is joined are joined by the first fitting portion 11, and as shown in FIG. 2 and the middle case 3 are joined by a third fitting portion 21.

  At this time, as shown in FIGS. 4 and 7, the frame-shaped outer rib 13 provided along the peripheral edge portion of the lower surface of the upper case 1 is formed into the annular shape provided along the peripheral edge portion of the upper surface of the lower case 2. A plurality of protrusions provided at the edges of the annular groove 14 in the lower case 2 are inserted into and fitted into the grooves 14 of the upper case 1, and are provided in the plurality of cutout grooves 15 a provided in the inner rib 15 of the upper case 1. 16 is inserted and fitted.

  As a result, the upper case 1 and the lower case 2 are connected to each other by inserting the frame-shaped outer rib 13 of the upper case 1 into the annular groove 14 of the lower case 2 and fitting the upper case 1 and the lower case 2 together. Are coupled in a state where deformation in the inner and outer directions (for example, the arrow X direction which is the width direction in FIG. 1) of each side surface portion is regulated.

  At the same time, the upper case 1 and the lower case 2 have a plurality of notched grooves 15 a provided in the inner rib 15 of the upper case 1 and a plurality of notched grooves 15 a provided in the edge of the annular groove 14 in the lower case 2. When the protrusions 16 are inserted and fitted, the upper case 1 and the lower case 2 are coupled in a state where positional deviation in the peripheral direction (for example, the arrow Y direction which is the front-rear direction in FIG. 1) is restricted. Is done.

  Further, when the upper case 1 and the lower case 2 are coupled in this manner, the frame-like outer rib 13 of the upper case 1 is inserted into the annular groove 14 of the lower case 2 as shown in FIG. As a result, the waterproof packing 17 mounted in the annular groove 14 of the lower case 2 is pressed by the frame-shaped outer rib 13 of the upper case 1.

  Further, when the upper case 1 and the lower case 2 are coupled in this manner, the lower case 2 and the middle case 3 are coupled by the third fitting portion 21 as shown in FIG. At this time, the plurality of protrusions 22 provided along the peripheral edge on the lower surface of the middle case 3 are inserted and fitted between the plurality of protrusion ribs 23 provided along the peripheral edge on the lower surface of the lower case 2. Match.

  Thereby, the lower case 2 and the middle case 3 are restricted from being deformed in the inner and outer directions (for example, the direction of the arrow X in the width direction of FIG. 1) of the side surfaces of the lower case 2 and the lower case. 2 and the middle case 3 are restrained from being displaced in the peripheral direction (for example, the arrow Y direction which is the front-rear direction in FIG. 1), and are coupled in this state.

  Thereafter, the screw members 25 are respectively inserted into the screw insertion holes 26 of the lower case 2 from the lower side, and are screwed into the screw holes of the bosses 28 of the upper case 1 and the screw holes 31 of the pair of screw fasteners 30. And tighten. As a result, the upper case 1 and the lower case 2 are firmly coupled by the first fitting portion 11, and the upper case 1 and the middle case 3 are firmly coupled by the second fitting portion 12. The case 2 and the middle case 3 are firmly coupled by the third fitting portion 21. Thereby, the rigidity of the whole upper case 1, lower case 2, and middle case 3 is ensured.

  At this time, as shown in FIGS. 10 and 11, the pair of screw fittings 30 is made of a metal plate, and the mounting portions 30 a of the screw fittings 30 are the inner ribs of the upper case 1 positioned on both sides of the input display unit 4. 15, and the bent portion 30 c of the screw fitting 30 is positioned below the middle case 3 in this state, thereby increasing the display area of the input display portion 4. Even when the gap between the upper case 1 and the middle case 3 at the positions located on both sides of the input display unit 4 is narrow, the upper case 1 and the lower case 2 are firmly coupled.

  In addition, when the upper case 1, the lower case 2, and the middle case 3 are firmly joined in this way, the frame-like outer ribs 13 of the upper case 1 are formed in an annular shape of the lower case 2 as shown in FIG. Since the waterproof packing 17 mounted in the groove portion 14 is further strongly pressed, the waterproofing of the upper case 1 and the lower case 2 is ensured.

  Thus, according to this portable information terminal, the upper case 1 and the lower case 2 are regulated by restricting the positions in the inner and outer directions of the upper case 1 and the lower case 2 and the peripheral direction of the upper case 1 and the lower case 2. The upper case 1 and the middle case 3 by regulating the positions of the first fitting portion 11 that couples the upper case 1 and the middle case 3 and the positions of the upper case 1 and the middle case 3 in the circumferential direction. And the second fitting portion 12 for coupling the device to increase the rigidity of the entire device, the input display portion 4, the keyboard portion 5, the circuit board 6, and the electronic component 7 incorporated therein The internal parts can be well protected.

  That is, in this portable information terminal, the first fitting portion 11 causes the upper case 1 and the lower case 2 to move in and out (for example, the arrow X direction which is the width direction in FIG. 1) and the peripheral direction (for example, FIG. 1). The upper case 1 and the lower case 2 can be coupled by restricting the respective positions in the width direction of the arrow X), and the inner and outer directions of the upper case 1 and the middle case 3 by the second fitting portion 12 The upper case 1 and the middle case 3 are coupled by regulating the positions in the direction (for example, the arrow X direction which is the width direction in FIG. 1) and the surrounding direction (for example, the arrow X direction which is the width direction in FIG. 1). be able to.

  For this reason, since the upper case 1, the lower case 2, and the middle case 3 can be coupled to each other, the rigidity of the entire device can be increased. Since the case 2 and the entire middle case 3 can receive the impact, it is possible to reliably prevent deformation and displacement of the cases 1 to 3, and the input display unit 4, the keyboard unit 5, The circuit board 6 and internal parts such as the electronic part 7 can be well protected.

  In this case, the first fitting portion 11 is provided along the peripheral edge portion on the upper surface of the lower case 2 and the frame-shaped outer rib 13 provided along the peripheral portion on the lower surface of the upper case 1. An annular groove 14 into which the frame-shaped outer rib 13 is fitted, a plurality of cutout grooves 15 a provided in the inner rib 15 located inside the outer rib 13 in the upper case 1, and an annular groove in the lower case 2. Since it has a plurality of projections 16 provided at the edge of the groove 14 and fitted into the plurality of notched grooves 15a of the upper case 1, the upper case 1 and the lower case 2 are securely and firmly coupled to each other. Can be made.

  That is, when the upper case 1 and the lower case 2 are coupled, the first fitting portion 11 is fitted by inserting the frame-shaped outer rib 13 of the upper case 1 into the annular groove portion 14 of the lower case 2. By doing so, it is possible to regulate the deformation of the side surfaces of the upper case 1 and the lower case 2 in the inner and outer directions that are the thickness direction (for example, the arrow X direction that is the width direction in FIG. 1). It is possible to reliably and satisfactorily prevent the upper case 1 and the lower case 2 from being deformed in the inner / outer direction, which is the thickness direction of the side surface portion, when receiving an impact.

  Further, when the upper case 1 and the lower case 2 are coupled, the first fitting portion 11 is formed in a plurality of notch grooves 15 a provided in the inner rib 15 of the upper case 1 so as to be annular in the lower case 2. The plurality of protrusions 16 provided at the edge of the groove 14 are inserted and fitted into each other, whereby the peripheral direction of the upper case 1 and the lower case 2 (for example, the arrow Y direction which is the front-rear direction in FIG. 1) ) Can be controlled reliably and well to prevent the upper case 1 and the lower case 2 from being displaced along the peripheral direction when subjected to an impact such as dropping. it can.

  In this case, when the upper case 1 and the lower case 2 are coupled with the waterproof packing 17 mounted in the annular groove 14 of the lower case 2, the frame-shaped outer rib 13 of the upper case 1 is formed. Since the frame-shaped outer rib 13 is inserted into the annular groove 14 of the lower case 2 and presses the waterproof packing 17 into the annular groove 14, the waterproof property between the upper case 1 and the lower case 2 can be secured. .

  The second fitting portion 12 includes a plurality of grooves 18 provided along the peripheral edge portion on the lower surface of the upper case 1 and a plurality of groove portions 18 provided along the peripheral edge portion on the upper surface of the middle case 3. Since the plurality of protrusions 19 fitted to the groove 18 are provided, when the upper case 1 and the middle case 3 are coupled, the plurality of protrusions of the middle case 3 are connected to the plurality of grooves 18 of the upper case 1. When 19 is inserted and fitted, deformation of the side surfaces of the upper case 1 and the middle case 3 in the thickness direction is the inner and outer direction (for example, the arrow X direction which is the width direction in FIG. 1). In addition to being able to be regulated, it is possible to regulate the displacement of the upper case 1 and the middle case 3 in the peripheral direction (for example, the arrow Y direction which is the front-rear direction in FIG. 1).

  That is, when the plurality of protrusions 19 of the middle case 3 are respectively inserted and fitted into the plurality of grooves 18 of the upper case 1, the second fitting portion 12 is provided on each side surface portion of the upper case 1 and the middle case 3. The deformation in the inner and outer directions, which is the thickness direction, is restricted, and the displacement of the upper case 1 and the middle case 3 in the circumferential direction is restricted. It is possible to reliably and satisfactorily prevent the middle case 3 from being deformed in the inner and outer directions, which are the thickness directions of the side surfaces thereof, and the upper case 1 and the middle case 3 are displaced in the circumferential direction. This can be reliably and well prevented.

  In this case, the outer peripheral surface of the middle case 3 is provided with protruding contact portions 20 that contact the inner surface of the frame-shaped outer rib 13 of the upper case 1, so that the plurality of groove portions 18 of the upper case 1 are provided. When the plurality of protrusions 19 of the middle case 3 are inserted and fitted to each other, the contact portion 20 of the middle case 3 comes into contact with the inner side surface of the outer rib 13 of the upper case 1, so that the first fitting The outer rib 13 of the upper case 1 and the annular groove 14 of the lower case 2 in the portion 11 can be reliably and firmly restricted from being deformed in the inner direction which is the thickness direction. 1, the lower case 2 and the middle case 3 can be reliably and satisfactorily prevented from deforming inward and outward.

  Further, in this portable information terminal, the lower case 2 and the middle case 3 are coupled by restricting the respective positions in the inner and outer directions of the lower case 2 and the middle case 3 and the circumferential direction of the lower case 2 and the middle case 3. Since the third fitting portion 21 is provided, the third fitting portion 21 causes the lower case 2 and the middle case 3 to move in and out (for example, the arrow X direction which is the width direction in FIG. 1) and the surrounding direction ( For example, the lower case 2 and the middle case 3 can be coupled by restricting each position in the arrow X direction (width direction in FIG. 1).

  In this case, the third fitting portion 21 includes a plurality of protrusions 22 provided along the peripheral edge portion on the lower surface of the middle case 3 and a plurality of the middle case 3 provided along the peripheral edge portion in the lower case 2. Since the protrusions 22 of the lower case 2 and the middle case 3 are coupled, the middle case 3 is interposed between the plurality of protrusion ribs 23 of the lower case 2. By inserting and fitting the plurality of protrusions 22 respectively, the inner and outer directions which are the thickness directions of the side surfaces of the lower case 2 and the middle case 3 (for example, the arrow X direction which is the width direction in FIG. 1). Deformation of the lower case 2 and the middle case 3 can be restricted, and displacement of the lower case 2 and the middle case 3 in the peripheral direction (for example, the arrow Y direction which is the front-rear direction in FIG. 1) can be restricted.

  That is, the third fitting portion 21 is configured so that the side surfaces of the lower case 2 and the middle case 3 are fitted when the plurality of projection portions 22 of the middle case 3 are inserted and fitted between the plurality of projection ribs 23 of the lower case 2. The inner case is deformed in the wall thickness direction, and the displacement of the lower case 2 and the middle case 3 in the circumferential direction is restricted. 2 and the middle case 3 can be reliably and satisfactorily prevented from deforming in the inner and outer directions, which are the thickness directions of the side surfaces thereof, and the lower case 1 and the middle case 3 are arranged along the peripheral direction. Misalignment can be reliably and satisfactorily prevented.

  Thus, in this portable information terminal, the upper case 1, the lower case 2, and the middle case 3 are made mutually and firmly by the first fitting portion 11, the second fitting portion 12, and the third fitting portion 21. Since it can couple | bond, the rigidity of the whole apparatus can be improved further. Thereby, when receiving an impact from the outside, the entire upper case 1, the lower case 2, and the middle case 3 can be prevented from being twisted more reliably, and the upper case 1, the lower case 2, and the middle case 3 can be prevented. It is possible to reliably and satisfactorily prevent warpage deformation due to mutual misalignment.

  Further, in this portable information terminal, the upper case 1, the lower case 2, and the middle case 3 are fastened to each other by the screw members 25, thereby the upper case 1, the lower case 2, and the middle case 3. Can be more firmly coupled by the first to third fitting portions 11, 12, and 21, so that when subjected to an impact such as dropping, the upper case 1, the lower case 2, and the middle case 3 Can be reliably and satisfactorily prevented from being warped and the upper case 1, the lower case 2 and the middle case 3 can be reliably and satisfactorily prevented from being warped and deformed.

  In this case, since a screw fitting 30 to which the lower case 2 is screwed is detachably fixed to the side surface in the upper case 1, the lower case 2 is attached to the upper case 1 by the screw fitting 30. It can be securely and firmly attached. The screw fitting 30 is attached to a mounting groove 32 provided on the inner rib 15 of the upper case 1 rather than a metal plate, and the bent portion 30b of the screw fitting 30 is located below the middle case 3, Since the screw hole 31 of the bent portion 30 c corresponds to the screw insertion hole 26 of the lower case 2, the lower case 2 can be securely and satisfactorily fastened to the upper case 1 by the screw member 25.

  That is, since this screwing metal fitting 30 has a configuration in which a metal plate is bent, when it is attached to the attachment groove 32 provided in the inner rib 15 of the upper case 1, the side surface of the upper case 1 and the middle case 3. And the bent portion 30b at the lower end can be positioned below the middle case 3. In this state, the screw insertion hole 26 of the lower case 2 can be positioned. Since the screw member 25 can be screwed into the screw hole 31 of the bent portion 30c, the lower case 2 can be securely and firmly fastened to the upper case 1.

  For this reason, since the side surface of the middle case 3 can be brought close to the side surface of the upper case 1, the middle case 3 disposed in the upper case 1 can be formed to be maximally large. Since the input display unit 4 incorporated in 3 can be enlarged to the maximum, and the area of the input display surface of the input display unit 4 can be increased. Also, a preferable one can be provided.

  Thus, even if the input display unit 4 and the middle case 3 are formed to be maximally large, the upper case 1 and the lower case 2 located on both sides of the input display unit 4 are securely connected by the screw fittings 30. Since it can be firmly fastened, even if it receives an impact such as a drop, the upper case 1 and the lower case 2 located at both sides of the input display unit 4 are deformed or displaced due to the impact. Therefore, the input display unit 4 can be well protected.

  In the above-described embodiment, the case where the present invention is applied to a portable information terminal is described. However, the portable information terminal is not necessarily required. For example, various portable types such as a cellular phone, an electronic dictionary, and a portable music player are used. It can be widely applied to portable devices.

DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3 Middle case 4 Input display part 5 Keyboard part 11 1st fitting part 12 2nd fitting part 13 Outer rib of 1st fitting part 14 Groove part 15 of 1st fitting part 15 1st fitting Inner rib 15a Notched groove 16 of inner rib 16 Projection part of annular groove part 17 Waterproof packing 18 Groove part of second fitting part 19 Projection part of second fitting part 20 Middle case contact part 21 Third fitting Part 22 Projection part of third fitting part 23 Projection rib of third fitting part 25 Screw member 26 Screw insertion hole 27 Boss mounting part 28 Boss 30 Screw fixing bracket 31 Screw hole 32 Mounting groove of upper case

Claims (7)

In a portable device comprising an upper case, a lower case arranged at the lower part of the upper case, and a middle case arranged inside the upper case and the lower case,
A first fitting portion that couples the upper case and the lower case by restricting respective positions in the inner and outer directions of the upper case and the lower case and in the circumferential direction of the upper case and the lower case;
A second fitting part for restricting each position in the inner and outer directions of the upper case and the middle case and the circumferential direction of the upper case and the middle case to couple the upper case and the middle case;
The first fitting portion includes a frame-shaped outer rib provided along a peripheral edge portion on a lower surface of the upper case, and a outer peripheral rib provided along a peripheral edge portion on an upper surface of the lower case. An annular groove portion to be fitted, a plurality of notched grooves provided in an inner rib located inside the outer rib in the upper case, and a plurality of notches provided in an edge portion of the annular groove portion in the lower case And a plurality of protrusions that fit into the notch grooves .   2. The portable device according to claim 1, wherein the second fitting portion is provided along a plurality of groove portions provided along a peripheral portion on a lower surface of the upper case and a peripheral portion on an upper surface of the middle case. And a plurality of protrusions fitted in the plurality of grooves. 3. The portable device according to claim 1 , wherein a projecting contact portion that contacts the inner surface of the outer rib of the upper case is provided on the outer peripheral surface of the middle case. A portable device. The portable device according to any one of claims 1 to 3 , wherein each position of the lower case and the middle case is regulated by restricting each position in an inner / outer direction of the lower case and the middle case and a circumferential direction of the lower case and the middle case. A portable device comprising a third fitting portion that joins the inner case to the middle case. 5. The portable device according to claim 4 , wherein the third fitting portion is provided along a plurality of protrusions provided along a peripheral portion on a lower surface of the middle case and a peripheral portion in the lower case. A plurality of projecting ribs into which the plurality of projecting parts are fitted , and the plurality of projecting parts and the plurality of projecting ribs are fitted into each other, thereby moving the lower case and the middle case in the circumferential direction. A portable device characterized by restricting the positional deviation of the mobile phone. The portable device according to any one of claims 1 to 5 , further comprising: a screw fitting that is detachably fixed to an inner surface of the upper case and is screwed to the lower case. Portable device. In a portable device comprising an upper case and a lower case disposed under the upper case,
A fitting part for connecting the upper case and the lower case by restricting each position in the inner and outer directions of the upper case and the lower case and the circumferential direction of the upper case and the lower case;
The fitting portion includes a frame-shaped outer rib provided along the peripheral edge portion on the lower surface of the upper case, and an annular shape provided along the peripheral edge portion on the upper surface of the lower case to fit the outer rib. A plurality of notch grooves provided in an inner rib located inside the outer rib in the upper case, and a plurality of notch grooves provided in an edge of the annular groove in the lower case. A portable device comprising a plurality of protrusions to be fitted.

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