JP5556648B2 - Portable device - Google Patents

Description

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

  For example, in a battery lid used in an electronic camera, as described in Patent Document 1, when a battery housing part provided in a camera case is closed so as to be openable and closable, the battery lid is opened in the opening part of the battery housing part. The inner part of the lid body is inserted, and the waterproof packing provided on the outer peripheral part of the inner part of the inserted lid body is in close contact with the inner peripheral surface of the opening of the battery storage part, so that it is waterproof. Is known.

JP 2004-157240 A

  The battery cover of such an electronic camera is formed continuously along the outer periphery with a packing groove opened only on the outer peripheral side on the outer peripheral surface of the inner side of the cover main body to be inserted into the opening of the battery storage unit. When the waterproof packing is inserted into the packing groove, a part of the inserted waterproof packing protrudes from the packing groove to the outer peripheral side, and when the inner part of the lid body is inserted into the opening of the battery housing part in this state In addition, a part of the waterproof packing protruding from the packing groove is configured to be in elastic contact with the inner peripheral surface of the opening of the battery storage unit.

  However, in such a battery lid of an electronic camera, the packing groove formed on the outer peripheral surface of the inner side of the lid main body is formed only on the outer peripheral side of the lid main body. When molding with a mold, if a slide mechanism is not provided in the mold, a packing groove cannot be formed on the outer peripheral surface of the lid body, which complicates the structure of the mold and makes it difficult to manufacture the mold. There is a problem that the mold cost and the price of the product become high.

An object of the present invention is to make it possible to ensure the waterproofness of a device case with a simple mold for molding.

In order to solve the above problems, the present invention includes the following components.
The invention according to claim 1 is a portable device including a lid member for closing an opening of a storage portion provided in the device case, wherein the lid member forms an outer part of the outer shape of the device case. And an inner lid portion that is attached to the inside of the outer lid portion and is detachably inserted into the opening of the storage portion, and the outer lid portion is formed with an annular outer peripheral portion. The inner lid part is formed with an outer peripheral part corresponding to the outer peripheral part of the outer lid part, and the inner lid part is attached to the outer lid part, so that the upper side as viewed from the inner lid part side. The outer lid portion and the inner lid of the outer lid portion are configured to be open only on the outer circumferential side of the inner lid portion by being covered by the lower surface of the outer circumferential portion of the outer lid portion provided on the outer lid portion. The inner lid by the outer peripheral part of the part Comprises a gasket groove provided along the outer periphery of said outer lid portion includes a first lid portion made of soft synthetic resin having elasticity, a made of synthetic resin harder than the synthetic resin of the soft Two-portion parts, and these are molded in two colors with the first lid portion located outside the device case and the second lid portion located inside. Equipment.

According to this invention, the mold for molding has a simple structure, and the waterproofness of the device case can be ensured.

It is the front view which showed one Embodiment which applied this invention to the portable information terminal. FIG. 2 is a perspective view of the portable information terminal shown in FIG. 1 viewed from the back side. FIG. 3 is an enlarged cross-sectional view of the portable information terminal shown in FIG. FIG. 3 is an enlarged perspective view showing a battery lid of the portable information terminal shown in FIG. FIG. 5 is an enlarged perspective view showing a battery cover of the portable information terminal shown in FIG. 4 as viewed obliquely from below. FIG. 6 is an enlarged perspective view illustrating a state where a waterproof packing is removed from the battery lid of the portable information terminal shown in FIG. 5. FIG. 7 is an enlarged back view showing the battery cover shown in FIG. 6 as viewed from below. It is an expanded sectional view in the BB arrow view of the battery cover shown by FIG. It is sectional drawing which expanded and showed the principal part of the battery cover shown by FIG. FIG. 7 is an enlarged perspective view showing an outer lid portion of the battery lid shown in FIG. 6 as viewed obliquely from below. FIG. 7 is an enlarged perspective view showing an inner lid portion of the battery lid shown in FIG. 6 as viewed obliquely from above. FIG. 12 is an enlarged perspective view showing an inner lid portion of the battery lid shown in FIG. 11 as viewed obliquely from below. FIG. 12 is an enlarged side view showing the inner lid portion shown in FIG. 11 as viewed from the side. FIG. 6 is an enlarged perspective view showing a waterproof packing of the battery cover shown in FIG. 5.

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 and 2, the portable information terminal includes a device case 1. The device case 1 is composed of an upper case 2 and a lower case 3. In the device case 1, the display unit 4 and the key input unit 5 are provided in an exposed state on the upper surface side of the upper case 2. A battery cover 6 is detachably attached to the lower surface of the lower case 3.

  In this case, the display unit 4 includes a flat display panel such as a liquid crystal display panel or an EL (electroluminescence) display panel, and is configured to display various types of information associated with information processing electro-optically. The key input unit 5 includes various keys necessary for information processing such as character keys, cursor keys, and function keys. Further, inside the lower case 3, as shown in FIG. 3, a battery storage portion 7 for storing a battery (not shown) is provided below the lower case 3 in a state corresponding to the lower side of the key input portion 5. It is provided open to the side (upper side in FIG. 2).

  Further, as shown in FIGS. 1 and 2, the device case 1 is formed in a substantially rectangular box shape that is long in the front-rear direction (vertical direction in FIG. 1). As shown in FIG. 1, the device case 1 has a length in the width direction (left-right direction in FIG. 1) orthogonal to the front-rear direction in the upper side portion where the display unit 4 is provided. It is formed slightly longer than the length in the width direction of the provided lower side portion.

  Thereby, as for this apparatus case 1, the part of the lower side located in the key input part 5 is formed in the grip part 1a. That is, the device case 1 is held with one hand by grasping the lower grip part 1a located in the key input unit 5 and in this state while viewing the information displayed on the display unit 4, the key input unit 5 It is comprised so that input operation may be carried out.

  By the way, as shown in FIGS. 2 and 3, the battery cover 6 is configured to close the opening 7 a of the battery storage portion 7 provided in the lower case 3 at a location corresponding to the key input portion 5 so as to be openable and closable. Has been. As shown in FIGS. 3 to 6, the battery lid 6 is attached to an outer lid portion 11 that forms a part of the outer shape of the lower case 3 and an inner side (lower side in FIG. 3) of the outer lid portion 11. And an inner lid portion 12 that is detachably inserted into an opening 7a of a battery housing portion 7 provided in the lower case 3.

  As shown in FIGS. 3 to 8, the outer lid portion 11 includes a first lid portion 13 made of a soft synthetic resin, and a second lid portion 14 made of a synthetic resin harder than the soft synthetic resin. These are integrally formed by two-color molding. In this case, the 1st cover part 13 consists of a soft synthetic resin which has elasticity, such as rubber | gum and an elastomer, and is located in the outer side (upper side in FIG. 8) with respect to the lower case 3. FIG.

  Further, as shown in FIGS. 2 and 3, the first lid portion 13 is formed on a curved surface 13 a whose outer peripheral surface (upper surface in FIG. 3) is continuous with the lower surface of the lower case 3. Thereby, the 1st cover part 13 is comprised so that it may closely_contact | adhere to a palm favorably by the curved surface 13a of the 1st cover part 13, when the grip part 1a of the apparatus case 1 is gripped with a hand.

  The 2nd cover part 14 consists of hard synthetic resins, such as ABS resin and a polycarbonate (PC), and as shown in FIGS. 5-8, it is an inner side (lower side in FIG. 8) which faces the lower surface of the lower case 3. As shown in FIG. positioned. On the inner side surface (lower surface in FIG. 8) of the second lid portion 14, as shown in FIG. 10, reinforcing ribs 14a are formed in a lattice shape vertically and horizontally. As shown in FIG. 10, a plurality of boss portions 14b having screw holes 14c are formed at predetermined positions of the reinforcing rib 14a.

  In this case, as shown in FIG. 3, the second lid portion 14 is formed so that its outer shape is slightly larger than the opening portion 7 a of the battery storage portion 7 provided in the lower case 3, and the opening portion 7 a of the battery storage portion 7. It is comprised so that it may contact | abut to the edge located outside. Further, as shown in FIGS. 2 and 4 to 7, the lower case 3 is provided at each corner portion located on both sides of one end portion of the second lid portion 14 (the end portion on the upper side in FIG. 2). A pair of mounting recesses 16 to which the paired mounting members 15 are respectively mounted are provided.

  As shown in FIGS. 4 to 7 and 10, the pair of mounting recesses 16 are formed by cutting each corner of the second lid portion 14 into a substantially semicircular shape. A flange portion 16 a is provided at the lower portion of the inner peripheral surface of the mounting recess 16. As a result, the outer lid portion 11 has the pair of attachment members 15 of the lower case 3 inserted into the pair of attachment recesses 16 so as to be detachable from the side, and the attachment member 15 is disposed on the flange portion 16a. Thus, the flange portion 16 a is pressed against the lower case 3 and attached to the lower case 3.

  In this case, as shown in FIG. 2, the pair of attachment members 15 includes an arm portion 15a attached to the lower surface (lower surface in FIG. 2) of the lower case 3 so as to be rotatable in the surface direction, and the arm portion 15a. It has a configuration provided with a disc-shaped presser part 15b provided at the tip part. As a result, the pair of attachment members 15 rotates the arm portion 15a in the lateral direction (left-right direction in FIG. 2) and inserts the holding portion 15b into each attachment recess 16 of the outer lid portion 11 from the side. The outer lid portion 11 is configured to be pressed against the lower case 3.

  On the other hand, the inner lid portion 12 is made of a hard synthetic resin such as ABS resin or polycarbonate (PC) like the second lid portion 14, and as shown in FIGS. 3 and 5 to 7, A plurality of screws 17 are attached to the lower surface of the second lid portion 14. As shown in FIG. 3, the inner lid portion 12 has an outer shape that is substantially the same as or slightly smaller than the inner peripheral surface of the opening 7 a of the battery housing portion 7 provided in the lower case 3. ing.

  That is, as shown in FIGS. 3 and 5 to 8, the inner lid portion 12 includes an upper plate portion 12 a that is slightly smaller than the outer shape of the outer lid portion 11, and a frame-shaped side plate portion that is suspended from the edge portion. The upper plate portion 12a and the side plate portion 12b are configured to be inserted into the opening portion 7a of the battery housing portion 7. In this case, as shown in FIGS. 11 to 13, packing grooves 18 are continuously provided in an annular shape along the outer periphery of the inner lid portion 12 on the outer peripheral portion of the side plate portion 12 b.

  As shown in FIGS. 8 and 9, the packing groove 18 is a stepped notch portion formed on the outer peripheral surface of the inner lid portion 12, and the upper surface side facing the outer lid portion 11 and the inner lid portion 12. Are opened in two directions perpendicular to each other. Thereby, as shown in FIG. 5, the packing groove 18 is configured such that the waterproof packing 20 is attached in an annularly continuous state along the outer periphery of the inner lid portion 12.

  As shown in FIG. 14, the waterproof packing 20 is made of an elastic member such as rubber and has a substantially circular cross section. In this case, as shown in FIG. 8 and FIG. 9, when the waterproof packing 20 is disposed in the packing groove 18 of the inner lid portion 12, a part of the waterproof packing 20 extends from the packing groove 18 to the outer peripheral side of the inner lid portion 12. The packing groove 18 is formed to be slightly thicker than the circumferential depth of the packing groove 18.

  That is, as shown in FIGS. 6, 8, and 9, the packing groove 18 has an upper surface side of the packing groove 18 when the inner lid portion 12 is attached to the lower surface of the second lid portion 14 in the outer lid portion 11. By being covered by the lower surface of the outer peripheral portion of the second lid portion 14 of the outer lid portion 11, the outer lid portion 11 is configured to be opened only on the outer peripheral side of the inner lid portion 12. Accordingly, as shown in FIGS. 5, 8, and 8, the waterproof packing 20 is configured such that a part of the waterproof packing 20 protrudes only to the outer peripheral side of the inner lid portion 12 when mounted in the packing groove 18. ing.

  Further, as shown in FIGS. 7, 11, and 12, the upper plate portion 12 a of the inner lid portion 12 has a plurality of screw insertion holes 19 into which the plurality of screws 17 are inserted. It is provided corresponding to a plurality of boss portions 14 b provided on the lid portion 14. As a result, as shown in FIGS. 3 and 7, the inner lid portion 12 has a plurality of screws 17 inserted into the plurality of screw insertion holes 19 from the lower side of the second lid portion 14 of the outer lid portion 11. It is configured to be attached to the outer lid portion 11 by being screwed into each screw hole 14c of a plurality of boss portions 14b provided on the lower surface and tightened.

Next, a case where such a battery lid 6 is manufactured will be described.
In this case, the outer lid portion 11 and the inner lid portion 12 are manufactured separately. First, when the outer lid portion 11 is manufactured, the first lid portion 13 made of a soft synthetic resin such as rubber or elastomer is formed by two-color molding using a molding die, and the soft synthetic resin is used. Also, the second lid portion 14 made of hard synthetic resin such as hard ABS resin or polycarbonate is integrally molded.

  At this time, for example, the second lid portion 14 made of a hard synthetic resin is molded with a first molding die, and the second lid portion 14 molded with the first molding die is used for the second molding. The first lid portion 13 made of soft synthetic resin is molded in this state. Thereby, the outer side cover part 11 in which the 1st cover part 13 and the 2nd cover part 14 were integrally formed by 2 color molding is manufactured.

  Further, when the inner lid portion 12 is molded, like the second lid portion 14, it is manufactured by injecting a hard synthetic resin such as ABS resin or polycarbonate into a molding die. At this time, as shown in FIGS. 10 to 13, the packing groove 18 is formed in the outer peripheral portion of the inner lid portion 12 in two directions orthogonal to each other between the upper surface facing the outer lid portion 11 and the outer peripheral side of the inner lid portion 12. Are continuously formed along the outer periphery of the inner lid portion 12 in a state of being opened.

  In this case, since the packing groove 18 of the inner lid portion 12 is not an undercut shape or an overhang shape, when the inner lid portion 12 is molded with a molding die, a slide mechanism is not provided in the die. The parting line (PL) shown in FIG. 13 can be divided into an upper mold and a lower mold, and the mold can be cut out. As a result, the mold for molding has a simple structure. Thus, the inner lid portion 12 can be easily formed.

  Next, the inner lid portion 12 is attached to the outer lid portion 11. At this time, as shown in FIG. 3, the plurality of screws 17 are respectively inserted into the plurality of screw insertion holes 19 provided in the inner lid portion 12 from the lower side thereof, and the lower surface of the second lid portion 14 of the outer lid portion 11. Are screwed into the respective screw holes 14c of the plurality of boss portions 14b provided in the base plate and tightened. As a result, the inner lid portion 12 is attached to the outer lid portion 11.

  Thus, when the inner lid portion 12 is attached to the outer lid portion 11, as shown in FIGS. 8 and 9, the upper surface side of the packing groove 18 formed on the outer periphery of the upper portion of the inner lid portion 12 is the outer side. It is covered with the lower surface of the outer peripheral part in the 2nd cover part 14 of the cover part 11. FIG. For this reason, the packing groove | channel 18 will be in the state open | released only to the outer peripheral side of the inner side cover part 12, as shown in FIG. Then, the waterproof packing 20 is mounted in the packing groove 18. At this time, as shown in FIG. 9, the waterproof packing 20 is mounted in the packing groove 18 in a state where a part of the waterproof packing 20 protrudes from the packing groove 18 to the outer peripheral side of the inner lid portion 12.

Next, a case where such a battery lid 6 is attached to the lower case 3 to close the opening 7a of the battery housing portion 7 will be described.
At this time, as shown in FIG. 3, the inner lid portion 12 of the battery lid 6 is made to correspond to the opening portion 7 a of the battery housing portion 7 of the lower case 3, and in this state, the inner lid portion 12 is opened to the opening portion of the battery housing portion 7. 7a, the second lid portion 14 of the outer lid portion 11 is brought into contact with the outer edge portion of the opening 7a of the battery housing portion 7.

  Then, a part of the waterproof packing 20 mounted in the packing groove 18 on the outer peripheral surface of the inner lid 12 is brought into elastic contact with the inner peripheral surface of the opening 7 a of the battery storage unit 7. Thereby, the opening 7 a of the battery housing portion 7 is sealed by the inner lid portion 12. In this state, as shown in FIG. 2, the battery lid 6 is fixed to the lower case 3 by a pair of attachment members 15 provided on the lower case 3.

  At this time, the arm portions 15 a of the pair of attachment members 15 are rotated in the lateral direction, and the presser portions 15 b are inserted into the pair of attachment recesses 16 provided in the outer lid portion 11 from the side thereof. Then, the pressing portions 15b of the pair of mounting members 15 are arranged on the flange portions 16a provided in the pair of mounting recess portions 16, respectively, and the pressing portions 15b of the pair of mounting members 15 cause the flange portions 16a to be It is pressed against the lower case 3. Thereby, the battery cover 6 is attached to the lower case 3 in a state where the battery housing portion 7 is sealed.

  By the way, in such a portable information terminal, the battery capacity varies depending on the model, and accordingly, the size of the battery storage unit 7 may vary depending on the model. In such a case, it can be dealt with simply and easily only by exchanging the inner lid portion 12 in accordance with the size of the opening 7a of the battery housing portion 7. That is, by removing the screw 17, the inner lid portion 12 can be easily detached from the outer lid portion 11 and replaced with the inner lid portion 12 corresponding to the size of the opening 7 a of the battery housing portion 7. Even if the size of the opening 7a of the portion 7 is different, it can be dealt with.

  As described above, according to the battery lid 6, the outer lid portion 11 that forms a part of the outer shape of the device case 1 and the opening 7 a of the battery housing portion 7 that is attached to the inner side of the outer lid portion 11 are inserted. An inner lid portion 12 that is removably inserted, and the outer circumferential portion of the inner lid portion 12 is opened with packing grooves opened in two directions orthogonal to each other on the outer lid portion 11 side and the outer lid side of the inner lid portion 12. 18 is arranged along the outer periphery of the inner lid portion 12 in a state of being located closer to the center side than the outer periphery of the outer lid portion 11, so that the molding die has a simple structure and is manufactured at low cost. And waterproofness can be ensured.

  That is, in the battery lid 6, when the inner lid portion 12 is attached to the inner side of the outer lid portion 11, the outer circumferential portion of the outer lid portion 11 covers the packing groove 18 formed in the outer circumferential portion of the inner lid portion 12. Thus, the waterproof packing 20 can be reliably and satisfactorily installed in the packing groove 18 opened only on the outer peripheral side of the inner lid portion 12. Therefore, waterproofness can be ensured.

  In addition, when the inner lid portion 12 is molded with a molding die, it is not necessary to form an undercut or overhanging packing groove in the inner lid portion 12, so a slide mechanism is provided in the die. Instead, the mold can be removed simply by separating the mold with a parting line (PL). For this reason, the mold for molding can have a simple structure, the mold for molding and the inner lid portion 12 can be manufactured at a low cost, and the thickness near the packing groove 18 is increased. Since the thickness can be reinforced, the packing groove 18 can be formed firmly.

  As a result, the waterproof packing 20 can be reliably and satisfactorily installed in the packing groove 18, and a part of the prevention packing 20 can be protruded from the packing groove 18 to the outer peripheral side of the inner lid portion 12. When the inner lid portion 12 is inserted into the opening 7 a of the battery housing portion 7, a part of the prevention packing 20 protruding from the packing groove 18 is securely attached to the inner peripheral surface of the opening portion 7 a of the battery housing portion 7. In addition, it can be made to elastically contact with each other, whereby the opening 7a of the battery housing portion 7 can be surely sealed, so that waterproofness can be ensured.

  Moreover, in this battery lid 6, since the outer lid portion 11 and the inner lid portion 12 are separately molded, the outer lid portion is compared with the case where the outer lid portion 11 and the inner lid portion 12 are integrally molded. 11 and the inner lid portion 12 are molded, the outer lid portion 11 and the inner lid portion 12 are less likely to be restricted in shape by the packing groove 18, and thus the outer lid portion 11 and the inner lid portion 12. Can be formed in any shape.

  In this case, the outer lid portion 11 has a first lid portion 13 made of a soft synthetic resin having elasticity and a second lid portion 14 made of a synthetic resin harder than the soft synthetic resin. The outer lid portion 11 can be easily and easily manufactured by the two-color molding with the first lid portion 13 positioned on the outer side and the second lid portion 14 positioned on the inner side. In addition, a high impact resistance can be obtained.

  That is, the outer lid portion 11 is provided with a first lid portion 13 made of a soft synthetic resin having elasticity on the outside of the device case 1, and a second lid made of a hard synthetic resin inside the first lid portion 13. By providing the portion 14, when the outer lid portion 11 receives an impact such as a drop, the impact can be elastically absorbed by the first lid portion 13. The shock that has not been absorbed can be reliably and satisfactorily received by the second lid portion 14 and can withstand an impact caused by a drop of about 2 m in height, so that the impact resistance can be sufficiently enhanced.

  In addition, the first lid portion 13 of the outer lid portion 11 is formed on the curved surface 13a continuous with the lower surface of the lower case 3 so that the battery lid 6 is attached to the lower case 3 and the device case. When the first grip portion 1a is gripped by the hand, the palm can be satisfactorily brought into close contact with the curved surface 13a of the first lid portion 13. In this case, since the first lid portion 13 is formed of an elastic synthetic resin such as rubber or elastomer, the battery lid 6 has a good feel when the device case 1 is gripped, and the device case 1 is easily gripped. Can do.

  Further, the outer lid portion 11 is provided with reinforcing ribs 14a vertically and horizontally on the opposing surface of the second lid portion 14 facing the inner lid portion 12, so that the entire thickness of the second lid portion 14 is large. In addition, the thickness of the second lid portion 14 can be reduced by the reinforcing rib 14a to reduce the weight of the second lid portion 14, and the second lid 14a can be reduced by the reinforcing rib 14a even if the thickness is reduced. In addition to ensuring the strength of the portion 14, it is possible to reduce the occurrence of sink marks on the surface of the second lid portion 14 (upper surface in FIG. 12) by the reinforcing rib 14 a when the second lid portion 14 is molded, Thereby, the 2nd cover part 14 can be shape | molded favorably.

  Furthermore, according to this battery lid 6, since the outer lid portion 11 and the inner lid portion 12 are fixed to each other by the screws 17, the outer lid portion 11 and the inner lid portion 12 can be easily and easily attached. Can do. For this reason, for example, when the battery capacity varies depending on the model of the portable information terminal and the size of the battery storage unit 7 varies accordingly, the inner lid 12 is easily removed from the outer lid 11. Thus, even if the size of the battery storage portion 7 varies depending on the model, it can be easily and easily handled by simply replacing the inner cover portion 12 according to the size of the opening 7a of the battery storage portion 7. .

  In the above-described embodiment, the battery lid 6 that covers the battery housing portion 7 of the device case 1 as the lid member has been described. However, the battery lid 6 does not necessarily have to be, for example, a terminal housing portion of an external connection terminal or a memory card. The present invention can also be widely applied to lid members that block various storage units such as the card storage unit.

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

DESCRIPTION OF SYMBOLS 1 Device case 2 Upper case 3 Lower case 6 Battery cover 7 Battery accommodating part 7a Opening part 11 Outer cover part 12 Inner cover part 13 1st cover part 14 2nd cover part 14a Reinforcement rib 17 Screw 18 Packing groove 20 Waterproof packing

Claims (3)

In a portable device including a lid member for closing an opening of a storage portion provided in a device case,
The lid member includes an outer lid portion that forms a part of the outer shape of the device case, and an inner lid portion that is attached to the inside of the outer lid portion and is detachably inserted into the opening of the storage portion. Prepared,
The outer lid portion is formed with an annular outer peripheral portion, and the inner lid portion is formed with an outer peripheral portion corresponding to the outer peripheral portion of the outer lid portion. By attaching the inner lid portion, the structure is opened only on the outer peripheral side of the inner lid portion by being covered by the lower surface of the outer peripheral portion in the outer lid portion provided on the upper side when viewed from the inner lid portion side. going on, includes the outer peripheral portion and the outer circumferential packing groove provided along the inner lid part by said outer peripheral portion of the inner lid part of the outer lid part,
The outer lid portion includes a first lid portion made of a soft synthetic resin having elasticity and a second lid portion made of a synthetic resin harder than the soft synthetic resin. Two-color molding is performed in a state where the first lid portion is located and the second lid portion is located inside the first lid portion.   The portable device according to claim 1, wherein reinforcing ribs are provided vertically and horizontally on a surface of the second lid portion of the outer lid portion facing the inner lid portion of the second lid portion.   The portable device according to claim 1 or 2, wherein the outer lid portion and the inner lid portion are fixed to each other by a screw member.

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