CN102484230B

CN102484230B - Portable terminal device

Info

Publication number: CN102484230B
Application number: CN201080037801.5A
Authority: CN
Inventors: 小幡隆雄
Original assignee: Fujitsu Frontech Ltd
Current assignee: Fujitsu Frontech Ltd
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2014-11-05
Anticipated expiration: 2030-04-30
Also published as: CN102484230A; JP5373116B2; JPWO2011135728A1; TWI410204B; TW201138596A; WO2011135728A1

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

Mobile communication terminal

Technical field

The present invention relates to have to taking in the battery cover sealing the battery chamber of battery and the mobile communication terminal that this battery cover is locked in to the locking mechanism of apparatus main body.

Background technology

In recent years, particularly in the situation that mobile communication terminal is used in work, because the use such as scanning means etc. increases electric power consumption, need to change termly rechargeable battery (for example 1 times/day), battery cover is designed to be undertaken by simple operations the structure of dismounting.

In addition, even if require battery cover to meet to be subject to the impact that waits such as falling also can breakage and can maintain the specification of water resistance.

In addition; as the waterproof specification that comprises the electronic equipment of mobile communication terminal; for example the protection class that is called IPX7 of JIS/IEC (International Electrotechnical Commission) is configured to; in 15～35 ℃ of temperature ranges etc.; device bottom in the diving apart from water surface 1m, the waterproof level of the degree that test duration is not also intake for 30 minutes.

Therefore, as mobile communication terminal, there is the resistance to impact that in the situation that by mistake makes device fall etc., also cracky and water resistance can not lose efficacy simply, and, preferably when closing, cap seal can obtain the required encapsulation pressure of waterproof.

And for example patent documentation 1 discloses following structure, that is, in electromagnetic wave shielding box, by operating a plurality of knobs, each swivel plate is rotated, when each engaging sheet and protrusions snap, lid the front and back of the left and right of box main body Width to amount to four positions locked.

In addition, patent documentation 2 discloses following structure,, in the battery cover of portable electric appts, mains switch adopts the slide switch of three positions, the recess of two position of the operation knob that makes to have two place's projections in three positions and battery cover is chimeric, in the slip of these two locking position battery covers.

And, patent documentation 3 discloses following structure,, in box-shaped shell, when making to be arranged on arm plate on housing and rotating centered by the screw of the centre of length direction, the fitting portion that is arranged on two ends is oppositely chimeric with the embedded hole being formed on housing up and down respectively, and housing is locked on housing two positions.

But, in patent documentation 1, have with box main body by hinge part pivot joint seal the lid of incorporating section, but owing to being four structures that position makes box main body engage to lock with lid in the left and right sides, so become complicated mechanism, it is many that part number also becomes.In addition, in the situation that making box main body fall, impact now can make hinge part breakage or distortion by mistake.In addition, when hinge part breakage waits, can damage the water-proof function of incorporating section.

In addition, in patent documentation 2, because two place's projections of operation knob are directly entrenched in the recess of battery cover, so in the situation that making portable electric appts fall etc. by mistake, impact now directly acts on the fitting portion of operation knob and battery cover, can make fitting portion breakage or depart from.In this situation, can damage the water-proof function of battery chamber.

And, in patent documentation 3, although be in the situation that being subject to impacting, to be also difficult for unlocking the structure of (chimeric), to the water proofing property of enclosure interior without any consideration.Therefore, be the structure of easily intaking from the gap between housing and housing.

Prior art document

Patent documentation

Patent documentation 1: Japanese kokai publication hei 8-316678 communique

Patent documentation 2: Japanese kokai publication hei 9-326570 communique

Patent documentation 3: TOHKEMY 2002-111244 communique

Summary of the invention

The invention provides a kind of mobile communication terminal, with simple structure, by a plurality of locking position battery covers of operating in of control member, anti-impact force is strong, and can maintain water proofing property.

Mobile communication terminal of the present invention has: battery cover, and described battery cover is arranged at apparatus main body, and to sealing for taking in the battery chamber of battery; And locking mechanism, described locking mechanism is locked in described apparatus main body by this battery cover, and described mobile communication terminal is characterised in that,

Described locking mechanism has:

In the mode that can move, be arranged at the rod unit of described battery cover; Operate the control member of this rod unit; And engaging part, described engaging part is arranged at described apparatus main body, and described rod unit is along with the operation of described control member is moved, thus the both ends of this rod unit engage with described engaging part,

By described rod unit, engage with described engaging part, described battery cover is pushed to described apparatus main body side by the reaction force from this engaging part.

According to present embodiment, during closing battery chamber, battery cover is pushed to apparatus main body side by the reaction force from engaging part, thus battery chamber by very close to each other, sealed, thereby the water proofing property of maintaining.

Accompanying drawing explanation

Fig. 1 is the outside drawing that the past face side is observed the mobile communication terminal of embodiments of the present invention.

Fig. 2 observes the outside drawing of mobile communication terminal from rear side.

Fig. 3 is the outside drawing of pulling down battery cover and observing mobile communication terminal from rear side.

Fig. 4 is the outside drawing while observing battery cover from inner surface side.

Fig. 5 is the outside drawing while observing outside housing from inner surface side.

Fig. 6 is the exploded perspective view of battery cover when inner side housing is layered in to the inner surface of outside housing.

Fig. 7 is the exploded perspective view of lever arm, operation panel and operation knob.

Fig. 8 is the assembly drawing of lever arm, operation panel and operation knob.

Fig. 9 is the vertical view while observing battery cover from inner surface side.

Figure 10 A means the figure of the latch-release state of lever arm.

Figure 10 B means the figure of the lock-out state of lever arm.

Embodiment

Below, based on accompanying drawing explanation embodiments of the present invention.

Fig. 1 is the outside drawing that the past face side is observed the mobile communication terminal of embodiments of the present invention, and Fig. 2 observes the outside drawing of mobile communication terminal from rear side.

Mobile communication terminal is as HHT (Hand Held Terminal: handheld terminal) being known, is the small type mobile devices that can carry and can carry out sales management, stock control or purchasing management and other radio communications etc.

In Fig. 1, this mobile communication terminal 10 is to overlook that the front surface of observing the apparatus main body 12 be elongated rectangular shape has the display parts 14 such as liquid crystal display (LCD) of the data for exporting menu picture and storing, as the enter key 16 of the data input part of operation input data and select button 18 etc., has not shown data processing division (operational part) that data from enter key 16 inputs etc. are processed etc. in the inside of apparatus main body 12.

In addition although do not install in the mobile communication terminal 10 of present embodiment, be also the specification that can carry as the printer of printing functionality.

In Fig. 2, in the rear side of mobile communication terminal 10, there is the battery cover 22 sealing taking in the peristome 26a (with reference to Fig. 3) of the battery chamber 26 of battery 20.

The details aftermentioned of this battery cover 22, but can lock (executing lock) or unlock by operation knob 62 is carried out to rotating operation, thereby with respect to peristome 26a dismounting.

In this mobile communication terminal 10, be equipped with for reading the not shown scanning element (sign reading unit) of the coded message that article (commodity) have.

In addition,, while using this mobile communication terminal 10 to send Emails etc., when user uses enter key 16 input telephone numbers or e-mail address etc., by long-range, by radio communication, data send to the communication objective of appointment.The data that are sent out are transferred to communication objective ground from base station by telephone wire, LAN line etc.

Fig. 3 pulls down battery cover 22 and outside drawing while observing mobile communication terminal 10 from rear side.

In the present embodiment, battery 20 is rechargeable batteries, in mode that can dismounting, is incorporated in the battery chamber 26 of the rear side that is formed at apparatus main body 12.This battery chamber 26 maintains water resistance by covering peristome 26a with battery cover 22.

Peristome 26a forms by roughly half part opening of the below of the length direction (Y-direction of Fig. 3) of apparatus main body 12.In addition, the substantial middle at the length direction of apparatus main body 12, above peristome 26a, is formed with locking mechanism incorporating section 28.

Border between the back side this locking mechanism incorporating section 28 and apparatus main body 12 is formed with step.This step is equivalent to cover the thickness part of the battery cover 22 of locking mechanism incorporating section 28.Like this, when battery cover 22 is arranged on the peristome 26a of battery chamber 26, the back side of apparatus main body 12 becomes level and smooth face (with reference to Fig. 2).

In addition, locking mechanism incorporating section 28 has operation knob incorporating section 32 in the substantial middle of the Width (directions X of Fig. 3) of apparatus main body 12.And, distolateral in the left and right of the Width of this locking mechanism incorporating section 28, towards the below of the length direction (Y-direction of Fig. 3) of apparatus main body 12, be provided with the engagement pin 34,35 as engaging part.The lever arm 61 of locking mechanism 60 described later engages with this engagement pin 34,35.

In addition, below the peristome 26a of battery chamber 26, the left and right end portions of (below of the Y-direction of Fig. 3), has cut out claw installation portion 36,37.The claw 40,41 of battery cover 22 (with reference to Fig. 4 etc.) hooking is also fixed on this claw installation portion 36,37.

In addition, in battery chamber, 26 peristome 26a, is formed with the wall 30 of thin-walled around.These wall 30 butts of encapsulation 48 described later (with reference to Fig. 4 etc.) maintain the water-proof function of battery chamber 26.

Fig. 4 is the outside drawing while observing battery cover 22 from inner surface.

This battery cover 22 has the integrative-structure that outside housing 22A and inner side housing 22B are laminated.

The peristome 26a sealing of this battery cover 22Jiang battery chamber 26, and also there is predetermined intensity with respect to impulsive force etc., and there is the water-proof function (for example IPX7 grade in IS/IEC) of the waterproof standard level that reaches good.

Fig. 5 is the outside drawing while observing outside housing 22A from inner surface side.

As shown in Figure 5, outside housing 22A for example, consists of the elastomeric material of (Merlon) such as synthetic resin, and central authorities have housing main body 23.This outside housing 22A has arm guide 38 and the locking mechanism 60 of the upper side that is formed on length direction (Y-direction of Fig. 5).

These arm guide 38 through-thickness (the Z direction of Fig. 5) erect setting.These arm guide 38 guiding are mobile as lever arm 61 broad wayss (directions X of Fig. 5) of rod unit.Operation by operation knob 62 is moved these lever arm 61 broad wayss.

In addition, the left and right end portions in the lower side of the length direction (Y-direction of Fig. 5) of housing main body 23 is formed with claw 40,41.This claw 40,41 is installed in the claw installation portion 36,37 of aforesaid apparatus main body 12.And this claw 40,41 is embedded in claw installation portion 36,37, and by locking mechanism 60 is locked, outside housing 22A (battery cover 22) is installed on apparatus main body 12.

In addition, the left and right end portions at the Width (directions X of Fig. 5) of housing main body 23, is formed with the side rib 42,43 that erects the inner surface side that is arranged at thickness direction (the Z direction of Fig. 5) along its length continuously.The wall 30 of the side of the peristome 26a of this side rib 42,43Yan battery chamber 26 forms.

Fig. 6 is the exploded perspective view of the battery cover 22 when inner side housing 22B is layered on the housing 22A of outside.

In the present embodiment, housing 22B in inner side has: the stiffener 46 as strengthening part consisting of the material different from outside housing 22A; Be arranged on the adhesive tape 44 as adhesives of the housing 22A side, outside of this stiffener 46; Be arranged on the encapsulation as seal member (パッキ Application) 48 of a side contrary with adhesive tape 44 sides of stiffener 46.Like this, housing 22B in inner side is stuck by adhesive tape 44 and is layered in outside housing 22A.

As adhesive tape 44, use for example so rectangular box-like elastomeric material of two-sided tape.This adhesive tape 44 has bonding outside housing 22A and the effect of stiffener 46 and the effect cushioning.Thus, adhesive tape 44 requires to have cementability and resistance to impact.In addition, this adhesive tape 44 non-immersion for waterproof has.

The mechanical strength of 46 couples of outboard cover cover 22A of stiffener is strengthened, and stiffener 46 for example, consists of the metallic plate (stainless steel) with mar proof and resistance to impact.

This stiffener 46 has: central authorities have the plate main body 50 of opening 50a; Be formed on the cover portion 51 of length direction (Y-direction of Fig. 6) upper side of this plate main body 50; To the outstanding pair of right and left projection 56,57 of the lower side of length direction; With the left and right flank 53,54 of left and right end portions that is formed on the Width (directions X of Fig. 6) of plate main body 50.

Like this, the housing main body 23 of 50 couples of outboard cover cover 22A of the plate main body of stiffener 46 is strengthened, and in addition, the side rib 42,43 of 53,54 couples of outboard cover cover 22A of left and right flank of stiffener 46 is strengthened.And the claw 40,41 of 56,57 couples of outboard cover cover 22A of projection of stiffener 46 is strengthened.In addition the cover portion 51 protection locking mechanisms 60 of stiffener 46.

Because this stiffener 46 has mar proof, so, even if the frame of plastic outside housing 22A part is worn and torn with other object contacts, can not may wear to than the part of stiffener 46 inner portions yet.Therefore, the battery chamber 26 (with reference to Fig. 3) being covered by battery cover 22 can not expose, thereby maintains the water proofing property of the inside of battery chamber 26.

In addition, because this stiffener 46 has resistance to impact, so, even if plastic outside housing 22A is damaged because falling etc., comprise that the inner side housing 22B of stiffener 46 also can be damaged.Thus, can expose the water proofing property of the inside that maintains battery chamber 26 in Bu Shi battery chamber 26.

In addition, in the upper end of the length direction of the right flank 54 of stiffener 46, be provided with roughly L font and to the outstanding anti-deformation metalwork 58 as anti-deformation parts of the inner surface side of thickness direction (the Z direction of Fig. 6).

The lever arm 61 of locking mechanism 60 is reinforced cover portion 51 protection of plate 46, but lever arm 61 is when move along its length, and expose from cover portion 51 end of lever arm 61.Therefore, this anti-deformation metalwork 58 has one distolateral (the right-hand member side of the directions X of Fig. 6) of the length direction that prevents lever arm 61 to the effect of the inner surface side distortion of thickness direction (the Z direction of Fig. 6).

Encapsulation 48 consists of rubber or the synthetic resin with non-immersion.This encapsulation 48 is central authorities and has the rectangular box-like of rectangular-shaped opening 48a.In addition, the size of opening 48a forms identically or larger than it with the opening 50a of stiffener 46.

This encapsulation 48 sticks on a face (with the face of adhesive tape 44 opposition sides) of stiffener 46 by not shown adhesive tape or bonding agent.Like this, outside housing 22A and stiffener 46 and encapsulation 48 is stacked is integrated.

In addition, encapsulation 48 is pressed on to the wall 30 of surrounding of the peristome 26a of battery chamber 26 with predetermined pressure, by its reaction force, maintain thus the water-proof function of battery chamber 26.

In addition, as previously mentioned, on battery cover 22, in the position by the inner side of Width than the claw of outside housing 22A 40,41, the outstanding projection 56,57 that is provided with the stiffener 46 of inner side housing 22B.Therefore the lower end side that, this projection 56,57 is blocked the peristome 26a that hangs over battery chamber 26 is to strengthen hook part.

Below, the locking mechanism 60 of present embodiment is described.

Locking mechanism 60 is when the peristome 26a with battery cover 22 clad battery chambers 26, the mechanism by this battery cover 22 to apparatus main body 12 side compressions locking.By this locking, battery cover 22 is by apparatus main body 12 side compressions, thereby maintains the water proofing property of the inside of battery chamber 26.

This locking mechanism 60 has: can be arranged on movably the lever arm 61 as rod unit on battery cover 22; Operate the operation knob 62 as control member of this lever arm 61; And engagement pin 34,35 (with reference to Fig. 3), described engagement pin 34,35 is arranged on apparatus main body 12, and lever arm 61 is along with the operation of operation knob 62 is moved, thus both ends (65a, the 67) engaging that supplies lever arm 61.

Operation knob 62 is arranged on the central authorities of the length direction of lever arm 61.And along with the operation of operation knob 62, lever arm 61 moves along its length.

Fig. 7 is the exploded perspective view of lever arm 61, operation panel 63 and operation knob 62, and Fig. 8 is its assembly drawing.

In Fig. 7 and Fig. 8, lever arm 61 has: the rectangular box-like frame 65 with first end 65a; Below (Z direction) with respect to this frame 65 Fig. 7 has the flat part 66 that stage portion is also flatly extended; And the top from this flat part 66 to figure (Z direction) has the second end 67 that small stage portion is also flatly extended.

Like this, when battery cover 22Dui battery chamber 26 is sealed, lever arm 61 is mobile to Fig. 7 right-hand (directions X), and first end 65a engages with the engagement pin 35 of apparatus main body 12, and meanwhile, the second end 67 engages with engagement pin 34.

In addition, at the flat part 66 of lever arm 61, erect and be provided with operative pin 68.On the other hand, on operation panel 63, be formed with through hole 69.Operation panel 63 is installed on the operative pin 68 of lever arm 61 by this through hole 69.

This through hole 69 forms eccentric with respect to operation panel 63 center.Therefore, the operative pin 68 of intercalation in this through hole 69 also installed with respect to the center deviation heart of operation panel 63.Thus, while making operation knob 62 rotation, lever arm 61 moves along its length.

In addition,, on operation panel 63, except through hole 69, be also formed with a plurality of (being 4 in figure) through hole 70.Operation panel 63 utilizes this through hole 70 and operation knob 62 combinations, in non-rotary mode, is mounted.

Lever arm 61 is retained as can be mobile with respect to battery cover 22 broad wayss (directions X of Fig. 5 and Fig. 6).But lever arm 61 can be not mobile with respect to battery cover 22 through-thickness (the Z direction of Fig. 5).Like this, when operation knob 62 is rotated, lever arm 61 moves along its length and engages with engagement pin 34,35.

In addition, the anti-deformation metalwork 58 shown in Fig. 8 is the metalworks for preventing that the second end 67 of lever arm 61 from deforming because of fatigue etc.This is to be out of shape because of the second end 67 of External Force Acting in lever arm 61 through long-term use in order to prevent.

In addition, in the present embodiment, the situation that covers distolateral (the second end 67) of lever arm 61 is illustrated, but is not limited to this by anti-deformation metalwork 58.For example, also can cover by same metalwork the both end sides (first end 65a and the second end 67) of lever arm 61.

Thus, can prevent from acting on respectively the first end 65a of lever arm 61 and each Leading Edge Deformation that the second end 67 makes lever arm 61 because of external force.

Fig. 9 is the vertical view while observing battery cover 22 from inner surface side.

In Fig. 9, when operation knob 62 is carried out to rotating operation along arrow B direction, lever arm 61 moves along arrow C direction.Thus, the first end 65a of lever arm 61 and the second end 67 with engagement pin 34,35 (with reference to Fig. 3) thus engage locking battery cover 22.

In addition, when operation knob 62 is carried out to rotating operation round about, lever arm 61 moves to the direction contrary with arrow C, and the locking of battery cover 22 is disengaged.

Figure 10 A and Figure 10 B mean the figure of the operate condition of lever arm 61.

Figure 10 A represents that lever arm 61 is with respect to the latch-release state of engagement pin 34,35 (with reference to Fig. 3), and Figure 10 B represents that lever arm 61 is with respect to the lock-out state of engagement pin 34,35.

As shown in Figure 10 A, under the latch-release state of lever arm 61, lever arm 61 does not engage with engagement pin 34,35.

That is,, under this state, the first end 65a of lever arm 61 and the second end 67 are positioned at respect to engagement pin 34,35 position that (directions X) leaves along its length.This is the only state of the peristome 26a of clad battery chamber 26 of battery cover 22, and not locking.

Then, as shown in Figure 10 B, when operation knob 62 is rotated, by operation panel 63 and operative pin 68, make lever arm 61 (arrow C direction) movement along its length.

In addition, the rotation of this operation knob 62 is actually and under the state of the peristome 26a with battery cover 22 clad battery chambers 26, makes operation knob 62 rotate.

Like this, lever arm 61 along its length (directions X) is mobile, and the upper surface of its first end 65a and the second end 67 (the A face of Figure 10 A, A ' face) enters into the downside (Z direction) of engagement pin 34,35 and engages.Thus, lever arm 61 becomes lock-out state with engagement pin 34,35.

By this engaging, the peristome 26a of the battery cover 22 closing battery chambers 26 shown in Fig. 4.In addition, the end of first end 65a and the second end 67 can form the conical surface, easily to engage with engagement pin 34,35.

In addition, in the present embodiment, the first end 65a of lever arm 61 and the upper surface of the second end 67 (the A face of Figure 10 A, A ' face) are positioned at than the position of the slightly top side of the lowest surface of engagement pin 34,35 (the Z direction of Figure 10 A).

Thus, under the state engaging with engagement pin 34,35 at first end 65a and the second end 67, lever arm 61 (and battery cover 22) because of the reaction force of engagement pin 34,35 slightly downwards (arrow D direction) mobile.

By the movement of this lever arm 61 downwards (arrow D direction), the battery cover 22 that keeps this lever arm 61 is by apparatus main body 12 side compressions.Thus, encapsulation 48 is pressed on the wall 30 of surrounding of battery chamber 26 and maintains water resistance.In this situation, if encapsulation 48 has elasticity, can further improve water resistance.

In addition, in the present embodiment, as engagement pin 34,35, use the rounded Metallic rod in cross section, but be not limited to this, can also be polygon, ellipse or semicircle for for example cross section.Thus, when lever arm 61 engages with engagement pin 34,35, lever arm 61 is (arrow D direction) movement easily downwards with the bight butt of engagement pin 34,35.

Like this, in the present embodiment, by rotating the central operation knob 62 of battery cover 22, lever arm 61 is moved along its length, thereby can make this lever arm 61 engage with two engagement pins 34,35 of the left and right end of the Width of apparatus main body 12.

In addition, in the present embodiment, lever arm 61 can move and not be fixed on apparatus main body 12 or battery cover 22.Therefore,, even if make apparatus main body 12 fall etc. by mistake, be also difficult for lever arm 61 directly to impact.Therefore, lever arm 61 keeps the lock-out state of battery cover 22 and can not be out of shape.Like this, because battery cover 22 can not depart from, so can maintain the water-proof function of battery chamber 26 always.

In addition; operation knob 62 is operated and lever arm 61 is moved; under the state engaging with two engagement pins 34,35 of apparatus main body 12, the anti-deformation metalwork 58 that the end of lever arm 61 (for example the second end 67) are formed on stiffener 46 covers and protected.Thus, even if use for a long time, also can prevent the second end 67 distortion bending of apparatus main body 12 sides (for example to) of lever arm 61.

In addition, when battery cover 22 is arranged on apparatus main body 12, battery cover 22 is placed with in battery chamber to 26 peristome 26a, makes this battery cover 22 to the slid underneath of length direction (Y-direction of Fig. 3).Like this, after the claw of battery cover 22 40,41 is embedded in to claw installation portion 36,37, operation knob 62 is operated.Thus, the peristome 26a of battery cover 22 closing battery chambers 26, and, engage with the engagement pin 34,35 of two positions and locked.

In addition, now, because the projection 56,57 of stiffener 46 is also embedded in the wall 30 of peristome 26a, so the installation strength of battery cover 22 is enhanced.

According to present embodiment, locking mechanism 60 has lever arm 61, operation knob 62 and is arranged on the engagement pin 34,35 of apparatus main body 12, when lever arm 61 engages with engagement pin 34,35, because battery cover 22 is pressed to apparatus main body 12 thrusters by the reaction force from engagement pin 34,35, so can guarantee the water proofing property of battery chamber 26.

In addition, according to present embodiment, apparatus main body 12 consists of the elastomeric material of synthetic resin etc., due to the encapsulation 48 of battery cover 22 be connected to battery chamber 26 surrounding wall 30 and be urged, so by the peristome 26a of battery cover 22 closing battery chambers, ground very close to each other 26.Thereby, can guarantee to encapsulate pressure to maintain the water proofing property of battery chamber 26.

In addition, according to present embodiment, because lever arm 61 is not fixed on apparatus main body 12 or battery cover 22, so even if make device fall etc. by mistake, lever arm 61 self is not vulnerable to direct impact yet.Thus, lever arm 61 is difficult for removing with engaging of engagement pin 34,35, and battery chamber 26 is protected and can not expose.

Claims

1. a mobile communication terminal, described mobile communication terminal has: battery cover, described battery cover is arranged at apparatus main body, and to sealing for taking in the battery chamber of battery; And locking mechanism, described locking mechanism is locked in described apparatus main body by this battery cover, and described mobile communication terminal is characterised in that,

Described locking mechanism has: the rod unit that is arranged at described battery cover in the mode that can move; Operate the control member of this rod unit; And engaging part, described engaging part is arranged at described apparatus main body, and described rod unit is along with the operation of described control member is moved, thus the both ends of this rod unit engage with described engaging part,

Described control member is arranged at the central authorities of the length direction of described rod unit, and described rod unit is along with the operation of described control member is moved along its length,

Described rod unit has: the rectangular box-like frame with first end; The flat part that there is stage portion downwards and flatly extend with respect to this frame; And the second end that there is upward small stage portion and flatly extend from this flat part,

When described battery cover is sealed battery chamber, described rod unit is to right-hand movement, and described first end and the second end engage with described engaging part,

By described rod unit, engage with described engaging part, described battery cover is pushed to described apparatus main body side by the reaction force from this engaging part, and, described battery cover has anti-deformation parts, described anti-deformation parts prevent that at least one end at both ends of the length direction of described rod unit is out of shape to described apparatus main body side

Described anti-deformation parts are L font and outstanding to the inner surface side of thickness direction roughly, thereby covers a distolateral or both end sides of described rod unit.