JP5373116B2 - Mobile terminal device - Google Patents

Abstract

Provided is a portable terminal device which is resistant to impact force and capable of maintaining a waterproof property, and in which a battery cover is locked in two positions by the operation of an operation knob by a simple configuration. Specifically provided is a portable terminal device (10) comprising a battery cover (22) which is provided in a device body (12) and covers a battery chamber (26) for accommodating a battery (20), and a lock mechanism (60) which locks the battery cover (22) to the device body (12). The lock mechanism (60) comprises a lever arm (61) which is provided so as to be movable in the battery cover (22), an operation knob (24) for operating the lever arm (61), and engagement pins (34, 35) which are provided in the device body (12) and with which both ends of the lever arm (61) are engaged by the movement of the lever arm following the operation of the operation knob (24). The battery cover (22) is pressed against the device body (12) side by repulsive force from the engagement pins (34, 35) by the engagement of the lever arm (61) with the engagement pins (34, 35).

Description

  The present invention relates to a portable terminal device having a battery cover that closes a battery chamber that houses a battery, and a lock mechanism that locks the battery cover to a device body.

  In recent years, particularly in the case of portable terminal devices used for business use, power consumption has increased due to, for example, the use of scanner devices, etc., and therefore rechargeable batteries must be periodically replaced (for example, once / day). Yes, the battery cover is designed to be removable with a simple operation.

In addition, the battery cover is required to satisfy the specifications such that the battery cover is not damaged even when subjected to an impact due to dropping or the like and the waterproof performance can be maintained.
In addition, as a waterproof standard for electronic devices including portable terminal devices, for example, in the protection class of IPX7 in JIS / IEC (International Electrotechnical Commission), the temperature range is 15 to 35 ° C., and the lowest end of the device is diving 1 m from the water surface The waterproof level is set so as not to be submerged even after a test time of 30 minutes.

  For this reason, as a portable terminal device, it has impact resistance that is not easily damaged even if the device is accidentally dropped, etc., and the waterproof performance is not easily impaired. It is desirable to be able to obtain pressure.

  On the other hand, in Patent Document 1, for example, in the electromagnetic wave shield box, when the respective rotating pieces are rotated by operating a plurality of knobs to engage the respective locking pieces and the protrusions, the housing is the box body. The structure which is locked in a total of four places before and after in the left-right width direction is disclosed.

  Patent Document 2 discloses that in a battery case of a portable electronic device, the power switch is a three-position slide switch, and an operation knob having two protrusions is fitted into the recess of the battery case at two of the three positions. Then, the structure which locks the slide of a battery case in these 2 positions is disclosed.

  Further, in Patent Document 3, in a box-shaped housing, when an arm plate attached to a cover is rotated around an intermediate screw in the longitudinal direction, fitting portions provided at both ends are formed in the housing. A configuration is disclosed in which the fitting holes are respectively fitted in the upside down direction and the cover is locked to the housing at two locations.

  However, in Patent Document 1, a box body is provided with a casing that is pivotally attached to the box body by a hinge portion and closes the storage portion. However, the box body and the lid body are engaged and locked at four positions on both the left and right sides. Due to the configuration, the mechanism becomes complicated and the number of parts increases. If the box body is accidentally dropped, the hinge part may be damaged or deformed by the impact at that time. Further, when the hinge part is damaged, the waterproof function of the storage part may be impaired.

  Further, in Patent Document 2, since the two protrusions of the operation knob are directly fitted into the concave portion of the battery case, when the portable electronic device is accidentally dropped, the impact at that time is directly manipulated. It acts on the fitting part between the knob and the battery case, and the fitting part may be damaged or detached. In this case, the waterproof function of the battery chamber is impaired.

  Further, in Patent Document 3, even if the structure is such that the lock (fitting) is difficult to be removed even when subjected to an impact, no consideration is given to the waterproofness inside the housing. For this reason, it is the structure which is easy to be flooded from the clearance gap between a housing | casing and a cover.

JP-A-8-316678 Japanese Patent Laid-Open No. 9-326570 JP 2002-111244 A

The present invention provides a portable terminal device that has a simple configuration and that has a battery cover locked at a plurality of locations by operation of an operation means, is strong against impact force, and can maintain waterproofness.
The present invention relates to a portable terminal device having a battery cover that is provided in the apparatus body and closes a battery chamber that houses a battery, and a lock mechanism that locks the battery cover to the apparatus body.
The locking mechanism is
A lever member which is movable in the longitudinal direction to the battery cover has a longitudinal, rotatably provided in the attached and the battery cover to the lever member, said longitudinal said lever member by the rotational operation And an engaging member that is provided in the apparatus main body and engages with both ends in the longitudinal direction of the lever member that moves in accordance with the operation of the operating means.
The lever member is moved by a rotation operation of the operation means, a lock position where the both end portions engage with the engagement member, and a release position where the engagement with the engagement member is released . When the lever member engages with the engaging member, the lever member is pressed toward the apparatus main body by a repulsive force from the engaging member ,
The battery cover is deformed so as to receive the one end side when the one end side is pressed against an inner surface side at least one end side in the longitudinal direction of the lever member and prevent the one end side from being deformed to the apparatus main body side. It has a prevention member .

  According to the present embodiment, when the battery chamber is closed, the battery cover is pressed toward the apparatus main body by the repulsive force from the engaging member, so that the battery chamber is closed without any gap and the waterproof property is maintained. .

It is the external view which looked at the portable terminal device of embodiment of this invention from the front side. It is the external view seen from the back side same as the above. It is the external view which removed the battery cover and looked at the portable terminal device from the back side. It is an external view when a battery cover is seen from the inner surface side. It is an external view when an outer cover is seen from the inner surface side. It is a disassembled perspective view of a battery cover when an inner cover is laminated | stacked on the inner surface of an outer cover. It is a disassembled perspective view of a lever arm, an operation plate, and an operation knob. It is an assembly drawing same as the above. It is a top view when a battery cover is seen from the inner surface side. It is a figure which shows the lock release state of a lever arm. It is a figure which shows the locked state of a lever arm.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an external view of a mobile terminal device according to an embodiment of the present invention viewed from the front side, and FIG. 2 is an external view of the mobile terminal device viewed from the back side.

  The portable terminal device is known as HHT (Hand Held Terminal), and is a small mobile device that can be carried and can perform sales management, inventory management, purchase management, and other wireless communication.

  In FIG. 1, the mobile terminal device 10 inputs data to a display unit 14 such as a liquid crystal display (LCD) that outputs a menu screen or stored data on the front surface of a device body 12 that is an elongated rectangular shape in plan view. An input key 16 as a data input unit, a selection button 18 and the like are provided, and the apparatus main body 12 includes a data processing unit (calculation unit) (not shown) that processes data input from the input key 16 and the like. ing.

In addition, although it is not equipped in the portable terminal device 10 of this Embodiment, there exists a specification of mounting the printer as a printing function.
In FIG. 2, on the back side of the mobile terminal device 10, there is a battery cover 22 that closes an opening 26 a (see FIG. 3) of a battery chamber 26 that houses the battery 20.

As will be described in detail later, the battery cover 22 can be attached to and detached from the opening 26a by being locked (locked) or unlocked by rotating the operation knob 62.
The portable terminal device 10 is equipped with a scanner unit (mark reading unit) (not shown) that reads code information attached to an article (product).

  Note that when an e-mail or the like is transmitted using the portable terminal device 10, when the user inputs a telephone number, an e-mail address, or the like using the input key 16, data is designated by long-distance wireless communication. Called to the other communication partner. The transmitted data is transmitted from the base station to a communication partner via a telephone line, a LAN line, or the like.

FIG. 3 is an external view of the mobile terminal device 10 when viewed from the back side with the battery cover 22 removed.
In the present embodiment, the battery 20 is a rechargeable battery and is detachably accommodated in a battery chamber 26 formed on the back side of the apparatus main body 12. The battery chamber 26 is kept waterproof by covering the opening 26 a with the battery cover 22.

  The opening 26 a is open at substantially half of the lower side in the longitudinal direction (Y direction in FIG. 3) of the apparatus main body 12. In addition, a lock mechanism accommodating portion 28 is formed at the approximate center in the longitudinal direction of the apparatus main body 12 and above the opening 26a.

  The locking mechanism accommodating portion 28 has a step formed at the boundary with the back surface of the apparatus main body 12. This step corresponds to a thickness portion of the battery cover 22 that covers the lock mechanism housing portion 28. Thus, when the battery cover 22 is attached to the opening 26a of the battery chamber 26, the back surface of the apparatus main body 12 becomes a smooth surface (see FIG. 2).

  Further, the lock mechanism housing portion 28 has an operation knob housing portion 32 at the approximate center in the width direction (X direction in FIG. 3) of the apparatus main body 12. Furthermore, engagement pins 34 and 35 as engagement members are provided on the left and right ends in the width direction of the lock mechanism housing portion 28 toward the lower side in the longitudinal direction of the apparatus main body 12 (Y direction in FIG. 3). Yes. A lever arm 61 of a lock mechanism 60 described later is engaged with the engagement pins 34 and 35.

  In addition, claw attaching portions 36 and 37 are cut out at the left and right ends below the opening 26a of the battery chamber 26 (downward in the Y direction in FIG. 3). The claws 40 and 41 (see FIG. 4 and the like) of the battery cover 22 are hooked and fixed to the claw mounting portions 36 and 37.

  A thin wall surface 30 is formed around the opening 26 a of the battery chamber 26. A packing 48 (see FIG. 4 and the like), which will be described later, is brought into contact with the wall surface 30 to maintain the waterproof function of the battery chamber 26.

FIG. 4 is an external view of the battery cover 22 as viewed from the inner surface side.
The battery cover 22 has an integral structure in which an outer cover 22A and an inner cover 22B are stacked.

  The battery cover 22 closes the opening 26a of the battery chamber 26 so as to have a predetermined strength against impact force and the like, and also has a waterproof function (for example, IPX7 grade in IS / IEC) that satisfies an excellent waterproof standard level. have.

FIG. 5 is an external view of the outer cover 22A as viewed from the inner surface side.
As shown in FIG. 5, the outer cover 22 </ b> A is made of an elastic material such as synthetic resin (for example, polycarbonate) and has a cover body 23 at the center. The outer cover 22A has an arm guide 38 and a lock mechanism 60 formed on the upper side in the longitudinal direction (Y direction in FIG. 5).

  The arm guide 38 is erected in the thickness direction (Z direction in FIG. 5). The arm guide 38 guides the movement of the lever arm 61 as a lever member in the width direction (X direction in FIG. 5). The lever arm 61 is moved in the width direction by the operation of the operation knob 62.

  Further, claws 40 and 41 are formed at the left and right ends of the cover body 23 on the lower side in the longitudinal direction (Y direction in FIG. 5). The claws 40 and 41 are attached to the claw attachment portions 36 and 37 of the apparatus main body 12 described above. The claws 40 and 41 are fitted into the claw attachment portions 36 and 37 and the lock mechanism 60 is locked, whereby the outer cover 22A (battery cover 22) is attached to the apparatus main body 12.

  Further, side ribs 42 and 43 erected on the inner surface side in the thickness direction (Z direction in FIG. 5) are continuous in the longitudinal direction at the left and right ends of the cover body 23 in the width direction (X direction in FIG. 5). Is formed. The side ribs 42 and 43 are formed along the wall surface 30 on the side of the opening 26 a of the battery chamber 26.

FIG. 6 is an exploded perspective view of the battery cover 22 when the inner cover 22B is laminated on the outer cover 22A.
In the present embodiment, the inner cover 22B includes a reinforcing plate 46 as a reinforcing member made of a material different from that of the outer cover 22A, and an adhesive tape 44 as an adhesive provided on the side of the outer cover 22A of the reinforcing plate 46. It has packing 48 as a sealing member provided on the side opposite to the adhesive tape 44 side of the reinforcing plate 46. Thus, the inner cover 22 </ b> B is attached to the outer cover 22 </ b> A with the adhesive tape 44 and laminated.

  As the adhesive tape 44, for example, a rectangular frame-like elastic material such as a double-sided tape is used. The adhesive tape 44 has a role of adhering the outer cover 22A and the reinforcing plate 46 and a role of buffering. For this reason, the adhesive tape 44 is required to have adhesiveness and impact resistance. Further, the adhesive tape 44 has non-water immersion properties for waterproofing.

The reinforcing plate 46 reinforces the mechanical strength of the outer cover 22A, and is made of a metal plate (for example, stainless steel) having wear resistance and impact resistance.
The reinforcing plate 46 has a plate main body 50 having an opening 50a in the center, a cover portion 51 formed on the upper side in the longitudinal direction (Y direction in FIG. 6) of the plate main body 50, and projects downward in the longitudinal direction. And a pair of left and right protrusions 56 and 57, and left and right rib portions 53 and 54 formed at left and right ends of the plate body 50 in the width direction (X direction in FIG. 6).

  Thus, the plate body 50 of the reinforcing plate 46 reinforces the cover body 23 of the outer cover 22A, and the left and right rib portions 53 and 54 of the reinforcing plate 46 reinforce the side ribs 42 and 43 of the outer cover 22A. ing. Further, the protrusions 56 and 57 of the reinforcing plate 46 reinforce the claws 40 and 41 of the outer cover 22A. The cover portion 51 of the reinforcing plate 46 protects the lock mechanism 60.

  Since the reinforcing plate 46 has wear resistance, even if the frame portion of the synthetic resin outer cover 22A comes into contact with other objects and wears, the reinforcing plate 46 does not wear to the inside of the reinforcing plate 46. For this reason, the battery chamber 26 (see FIG. 3) covered with the battery cover 22 is not exposed, and the waterproofness inside the battery chamber 26 is maintained.

  Further, since the reinforcing plate 46 has impact resistance, the inner cover 22B including the reinforcing plate 46 is not damaged even if the outer cover 22A made of synthetic resin is damaged by dropping or the like. For this reason, the battery chamber 26 is not exposed and the waterproofness inside the battery chamber 26 is maintained.

  Further, at the upper end in the longitudinal direction of the right rib portion 54 of the reinforcing plate 46, a deformation preventing metal fitting 58 is provided as a deformation preventing member that is substantially L-shaped and protrudes to the inner surface side in the thickness direction (Z direction in FIG. 6). It has been.

  The lever arm 61 of the lock mechanism 60 is protected by the cover portion 51 of the reinforcing plate 46, but its end portion protrudes from the cover portion 51 when the lever arm 61 moves in the longitudinal direction. Therefore, the deformation preventing metal fitting 58 serves to prevent one end side in the longitudinal direction of the lever arm 61 (right end side in the X direction in FIG. 6) from being deformed to the inner surface side in the thickness direction (Z direction in FIG. 6). have.

  The packing 48 is made of a non-water-impregnated rubber or synthetic resin. The packing 48 has a rectangular frame shape having a rectangular opening 48a at the center. The size of the opening 48a is equal to or larger than that of the opening 50a of the reinforcing plate 46.

  The packing 48 is affixed to one surface of the reinforcing plate 46 (surface opposite to the adhesive tape 44) via an adhesive tape or adhesive (not shown). Thus, the outer cover 22 </ b> A is integrally laminated on the reinforcing plate 46 and the packing 48.

The packing 48 is pressed against the wall surface 30 around the opening 26a of the battery chamber 26 with a predetermined pressure, so that the waterproof function of the battery chamber 26 is maintained by the repulsive force.
Further, as described above, the battery cover 22 has the protrusions 56 and 57 of the reinforcing plate 46 of the inner cover 22B projecting inward in the width direction from the claws 40 and 41 of the outer cover 22A. Therefore, the protrusions 56 and 57 are hooked on the lower end side of the opening 26a of the battery chamber 26, and the hooking portion is reinforced.

Next, the lock mechanism 60 of the present embodiment will be described.
The lock mechanism 60 is a mechanism that, when the battery cover 22 covers the opening 26a of the battery chamber 26, presses and locks the battery cover 22 toward the apparatus main body 12 side. With this lock, the battery cover 22 is pressed against the apparatus main body 12 side, and the waterproofness inside the battery chamber 26 is maintained.

The lock mechanism 60 includes a lever arm 61 as a lever member movably provided on the battery cover 22, an operation knob 62 as an operation means for operating the lever arm 61, and an operation knob 62 provided on the apparatus main body 12. The lever arm 61 is moved by the above operation, and has engaging pins 34 and 35 (see FIG. 3) with which both end portions (65a and 67) are engaged.
The operation knob 62 is provided at the center of the lever arm 61 in the longitudinal direction. The lever arm 61 moves in the longitudinal direction in accordance with the operation of the operation knob 62.

FIG. 7 is an exploded perspective view of the lever arm 61, the operation plate 63, and the operation knob 62, and FIG. 8 is an assembly view thereof.
7 and 8, the lever arm 61 has a rectangular frame-shaped frame body 65 having a first end 65a, and a stepped portion below the frame body 65 in FIG. The flat plate portion 66 extends horizontally, and the second end portion 67 extends horizontally from the flat plate portion 66 with a slight step portion upward (Z direction) in the figure.

  Thus, when the battery cover 22 is closed to the battery chamber 26, the lever arm 61 moves in the right direction (X direction) in FIG. 7 and the first end portion 65 a engages with the engagement pin 35 of the apparatus body 12. At the same time, the second end 67 is engaged with the engagement pin 34.

  An operation pin 68 is erected on the flat plate portion 66 of the lever arm 61. On the other hand, a through hole 69 is formed in the operation plate 63. The operation plate 63 is attached to the operation pin 68 of the lever arm 61 through the through hole 69.

  The through hole 69 is formed eccentrically with respect to the center of the operation plate 63. For this reason, the operation pin 68 inserted into the through hole 69 is also attached eccentrically with respect to the center of the operation plate 63. Thus, when the operation knob 62 is rotated, the lever arm 61 moves in the longitudinal direction.

  The operation plate 63 has a plurality of (four in the figure) through-holes 70 in addition to the through-holes 69. The operation plate 63 is coupled to the operation knob 62 using the through hole 70 and is attached so as not to rotate.

  The lever arm 61 is held so as to be movable with respect to the battery cover 22 in the width direction (X direction in FIGS. 5 and 6). However, the lever arm 61 does not move in the thickness direction (Z direction in FIG. 5) with respect to the battery cover 22. Thus, when the operation knob 62 is rotated, the lever arm 61 moves in the longitudinal direction and engages with the engagement pins 34 and 35.

  Further, the deformation preventing metal fitting 58 shown in FIG. 8 is a metal fitting that prevents the second end 67 of the lever arm 61 from being deformed due to a sag or the like. This is to prevent external force from acting on the second end 67 of the lever arm 61 and deforming due to long-term use.

In the present embodiment, the case where one end side (second end portion 67) of the lever arm 61 is covered with the deformation preventing metal fitting 58 has been described, but the present invention is not limited to this. For example, you may make it cover the both ends side (1st end part 65a and 2nd end part 67) of the lever arm 61 with the same metal fitting.
Thereby, it is possible to prevent the external ends from acting on the first end portion 65 a and the second end portion 67 of the lever arm 61 to deform each end portion of the lever arm 61.

FIG. 9 is a plan view of the battery cover 22 as viewed from the inner surface side.
In FIG. 9, when the operation knob 62 is rotated in the direction of arrow B, the lever arm 61 moves in the direction of arrow C. As a result, the first end 65a and the second end 67 of the lever arm 61 are engaged with the engagement pins 34 and 35 (see FIG. 3), and the battery cover 22 is locked.
When the operation knob 62 is turned in the opposite direction, the lever arm 61 moves in the opposite direction to the arrow C, and the battery cover 22 is unlocked.

10A and 10B are diagrams illustrating the operating state of the lever arm 61. FIG.
10A shows the unlocked state of the lever arm 61 with respect to the engaging pins 34 and 35 (see FIG. 3), and FIG. 10B shows the locked state of the lever arm 61 with respect to the engaging pins 34 and 35.

As shown in FIG. 10A, when the lever arm 61 is unlocked, the lever arm 61 and the engagement pins 34 and 35 are not engaged.
That is, in this state, the first end portion 65 a and the second end portion 67 of the lever arm 61 are located away from the engagement pins 34 and 35 in the longitudinal direction (X direction). This is a state in which the battery cover 22 simply covers the opening 26a of the battery chamber 26, and is not locked.

Next, as shown in FIG. 10B, when the operation knob 62 is rotated, the lever arm 61 moves in the longitudinal direction (arrow C direction) via the operation plate 63 and the operation pin 68.
The operation knob 62 is actually rotated by covering the opening 26a of the battery chamber 26 with the battery cover 22 and rotating the operation knob 62 in this state.

  Thus, the lever arm 61 moves in the longitudinal direction (X direction), and the upper surfaces (the A surface and the A ′ surface in FIG. 10A) of the first end portion 65a and the second end portion 67 of the engaging pins 34, 35 Enter the lower side (Z direction) and engage. As a result, the lever arm 61 and the engaging pins 34 and 35 are locked.

  Due to this engagement, the battery cover 22 shown in FIG. 4 is closed by the opening 26 a of the battery chamber 26. The tips of the first end portion 65a and the second end portion 67 are preferably formed on tapered surfaces so as to be easily engaged with the engagement pins 34 and 35.

  In the present embodiment, the upper surfaces (the A and A ′ surfaces in FIG. 10A) of the first end portion 65a and the second end portion 67 of the lever arm 61 are slightly smaller than the lowermost surfaces of the engagement pins 34 and 35. It is located above (Z direction in FIG. 10A).

  Thereby, in a state where the first end portion 65a and the second end portion 67 are engaged with the engaging pins 34, 35, the lever arm 61 (and the battery cover 22) is slightly lowered by the repulsive force of the engaging pins 34, 35. Move in the direction of arrow D.

  As the lever arm 61 moves downward (arrow D direction), the battery cover 22 holding the lever arm 61 is pressed against the apparatus main body 12 side. Thereby, the packing 48 is pressed against the wall surface 30 around the battery chamber 26, and the waterproof performance is maintained. In this case, if the packing 48 has elasticity, the waterproof performance is further improved.

  In the present embodiment, a metal bar having a circular cross section is used as the engaging pins 34 and 35. However, the present invention is not limited to this, and for example, a polygonal cross section, an elliptical shape, a semicircular shape, or the like may be used. Thus, when the lever arm 61 is engaged with the engagement pins 34 and 35, the lever arm 61 is in contact with the corners of the engagement pins 34 and 35 and easily moves downward (in the direction of arrow D).

  Thus, in this embodiment, the lever arm 61 is moved in the longitudinal direction by turning the operation knob 62 at the center of the battery cover 22, and the lever arm 61 is moved to the left and right ends in the width direction of the apparatus main body 12. The two engaging pins 34 and 35 can be engaged.

  In the present embodiment, the lever arm 61 is not fixed to the apparatus main body 12 or the battery cover 22 and is movable. For this reason, even if the apparatus main body 12 is accidentally dropped or the like, the impact is not easily transmitted directly to the lever arm 61. For this reason, the lever arm 61 is not deformed and the battery cover 22 is kept locked. Thus, since the battery cover 22 does not come off, the waterproof function of the battery chamber 26 is maintained as it is.

  Further, when the lever arm 61 is moved by operating the operation knob 62 and engaged with the two engaging pins 34 and 35 of the apparatus main body 12, the end of the lever arm 61 (for example, the second end 67). Is covered and protected by a deformation prevention metal fitting 58 formed on the reinforcing plate 46. Accordingly, it is possible to prevent the second end 67 of the lever arm 61 from being deformed (for example, bent toward the apparatus main body 12) even when used for a long time.

  In order to attach the battery cover 22 to the apparatus main body 12, the battery cover 22 is applied to the opening 26a of the battery chamber 26, and the battery cover 22 is slid downward in the longitudinal direction (Y direction in FIG. 3). Thus, after the claws 40 and 41 of the battery cover 22 are fitted into the claw attachment portions 36 and 37, the operation knob 62 is operated. As a result, the battery cover 22 closes the opening 26a of the battery chamber 26, and further engages with the two engagement pins 34 and 35 to be locked.

At this time, since the protrusions 56 and 57 of the reinforcing plate 46 are also fitted into the wall surface 30 of the opening 26a, the mounting strength of the battery cover 22 is enhanced.
According to the present embodiment, the lock mechanism 60 includes the lever arm 61, the operation knob 62, and the engagement pins 34 and 35 provided on the apparatus main body 12, and the lever arm 61 is engaged with the engagement pins 34 and 35. When the battery cover 22 is engaged, the battery cover 22 is pressed toward the apparatus main body 12 by the repulsive force from the engagement pins 34 and 35, so that the waterproof property of the battery chamber 26 can be ensured.

  In addition, according to the present embodiment, the device main body 12 is made of an elastic material such as synthetic resin, and the packing 48 of the battery cover 22 contacts and is pressed against the wall surface 30 around the battery chamber 26. The battery cover 22 closes the opening 26a of the battery chamber 26 without any gap. Therefore, the packing pressure is secured and the waterproof property of the battery chamber 26 is maintained.

  Further, according to the present embodiment, since the lever arm 61 is not fixed to the apparatus main body 12 or the battery cover 22, even if the apparatus is accidentally dropped or the like, the lever arm 61 itself is not easily subjected to an impact. For this reason, the engagement between the lever arm 61 and the engagement pins 34 and 35 is unlikely to be released, and the battery chamber 26 is protected without being exposed.

Claims (2)

In a mobile terminal device having a battery cover that is provided in the apparatus body and closes a battery chamber that houses a battery, and a lock mechanism that locks the battery cover to the apparatus body.
The locking mechanism is
A lever member which is movable in the longitudinal direction to the battery cover has a longitudinal, rotatably provided in the attached and the battery cover to the lever member, said longitudinal said lever member by the rotational operation And an engaging member that is provided in the apparatus main body and engages with both ends in the longitudinal direction of the lever member that moves in accordance with the operation of the operating means.
The lever member is moved by a rotation operation of the operation means, a lock position where the both end portions engage with the engagement member, and a release position where the engagement with the engagement member is released . When the lever member engages with the engaging member, the lever member is pressed toward the apparatus main body by a repulsive force from the engaging member ,
The battery cover is deformed so as to receive the one end side when the one end side is pressed against an inner surface side at least one end side in the longitudinal direction of the lever member and prevent the one end side from being deformed to the apparatus main body side. A portable terminal device comprising a prevention member . Said operating means, the portable terminal device according to claim 1, characterized in that provided in the central longitudinal direction of the lever member.

Images