JP2008193630A - Slide type compact electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent both casings from rattling when opened or closed in a slide type compact electronic apparatus comprising a first casing and a second casing which are engaged so as to mutually slide with a slide mechanism. <P>SOLUTION: In the slide type compact electronic apparatus, an elastic member 8 elastically deformable in a direction perpendicular to a facing surface on the surface of the first casing facing the second casing. On the surface of the second casing facing the first casing, a convex part 25 is formed which slides with the surface of the elastic member 8 when closed or opened so as to elastically deform the elastic member 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a small electronic device in which a pair of housings are slidably engaged with each other, such as a slide type mobile phone.

  In a sliding mobile phone, a base case with a numeric keypad on the surface and a slide case with a display on the surface are slidably engaged with each other, and both cases overlap with the largest overlap area. It is possible to set a closed state and an open state in which both housings overlap with each other with a minimum overlap area, and a call is normally performed in the open state.

As a slide mechanism for sliding the slide housing with respect to the base housing, for example, slide portions are provided on both sides of the slide housing, and the slide portions are provided on both sides of the base housing. A guide groove that is slidably engaged is provided, and sliding of the slide housing with respect to the base housing is guided by sliding the slide portion along the guide groove (for example, Patent Document 1).
JP-A-11-331332 [H04M1 / 02]

  However, in the conventional slide type mobile phone, the two casings are engaged with each other by the slide mechanism, and are separated from each other even in the open state or the closed state. Since the minimum play for realizing a smooth slide is provided between the grooves, there is a problem that slight backlash occurs between the two cases in the open state and the closed state.

  An object of the present invention is to reliably prevent backlash of both housings in an open state or a closed state in a sliding small electronic device in which a pair of housings are engaged with each other by a slide mechanism.

In the slide-type small electronic device according to the present invention, the first housing and the second housing are slidably engaged with each other by the slide mechanism, and both the housings overlap with each other in the maximum overlapping area, It is possible to set an open state in which the casings overlap with a minimum overlapping area.
Here, an elastic member (8) that can be elastically deformed in a direction orthogonal to the opposing surface is disposed on a surface of the first housing facing the second housing, and the first housing of the second housing. On the surface facing the body, a convex portion (25) is formed which slides on the surface of the elastic member (8) in a closed state or an open state and elastically deforms the elastic member (8).

  In the slide type small electronic device of the present invention, when the first housing and the second housing are shifted from the closed state to the open state, or when the open state is shifted to the closed state, the elastic member of the first housing The convex part (25) of the second housing comes into sliding contact with the surface of (8), and the elastic member (8) is elastically deformed in the thickness direction. The elastic repulsive force accompanying the elastic deformation of the elastic member (8) acts on the convex portion (25), thereby urging both housings away from each other. As a result, backlash between the two housings is absorbed.

In a specific configuration, the surface of the elastic member (8) is formed as a slope inclined in a plane including the approaching / separating direction of the convex portion (25).
According to the specific configuration, the convex portion (25) is formed on the surface of the elastic member (8) immediately before the first housing and the second housing reach the open state from the closed state or immediately before the first housing and the second housing reach the closed state from the open state. ) Abut, and the protrusion (25) slides on the surface of the elastic member (8) in the process of further sliding toward the open state or the closed state, and the component force in the thickness direction of the elastic member (8) Thus, the elastic member (8) is elastically deformed.

In another specific configuration, the elastic member (8) includes an elastic sheet (81) attached to the facing surface of the first housing and a highly slidable sheet (slidable contact with the convex portion (25)). 83).
According to the specific configuration, the elastic sheet (81) exhibits an elastic deformation function, and the highly slidable sheet (83) reduces sliding friction of the convex portion (25).

  According to the slide-type small electronic device according to the present invention, it is possible to reliably prevent rattling of both housings in the open state or the closed state.

Hereinafter, the embodiment in which the present invention is applied to a slide-type mobile phone will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 3, the slide type mobile phone according to the present invention has a base case (1) provided with a display (21) and function keys (22) on the surface, and a numeric keypad (11) on the surface. The slide casing (2) is configured to be slidable between a closed position shown in FIGS. 1 and 2 and an open position shown in FIG.

As shown in FIG. 4, the slide housing (2) is composed of a back side case half (23) and a front side case half (24), and the display (21) and the surface case half (24) are placed on the surface. Function key (22) is deployed.
On the other hand, the base housing (1) is composed of a rear case half (12) and a front case half (13), and a numeric keypad (11) is provided on the surface of the front case half (13). .
A slide mechanism (3) is interposed between the rear case half (23) of the slide casing (2) and the front case half (13) of the base casing (1).

  As shown in FIGS. 5 and 6, the slide mechanism (3) includes a first plate member (32) connected to the front case half (13) of the base casing (1), and a slide casing (2). The second plate member (33) connected to the back side case half (23) of the first and second slide members (2) is interposed between the plate members (32) and (33), and the slide housing (2) is closed and opened from the intermediate position. Springs (31) urging in both directions of the position, and both sides of the first plate member (32) are slidably engaged with both sides of the second plate member (33). The members (32) and (33) are allowed to move relative to each other in the sliding direction, and are prevented from separating in a direction perpendicular to the sliding direction.

As shown in FIG. 4, on the surface of the front case half (13) of the base housing (1), ribs (18) extending left and right are projected from the slide housing (2) at a position facing the slide housing (2). A wedge-shaped elastic member (8) is provided along the rib (18).
On the other hand, as shown in FIGS. 5 and 6, the rear surface of the case half (23) on the back side of the slide housing (2) has a rib-like protrusion extending left and right at a position facing the base housing (1). A portion (25) is formed.

In the process of sliding the slide housing (2) from the open position to the closed position, the convex portion (25) of the slide housing (2) approaches the elastic member (8) of the base housing (1), and the slide housing In the state where (2) has reached the closed position, the convex portion (25) of the slide casing (2) rides on the surface of the elastic member (8) of the base casing (1) and slides on the surface. Become. As a result, the elastic member (8) contracts in the thickness direction, and the surface of the elastic member (8) presses the convex portion (25) upward by the elastic repulsive force. Absorb play in the engaged state between the bodies (2).
As a result, the slide housing (2) is held in the closed position without causing any backlash with respect to the base housing (1).

As shown in FIG. 7, the base casing (1) is a circuit board (a plurality of electronic components (15) mounted between a rear case half (12) and a front case half (13)). 14) and a resin chassis (7) for holding the circuit board (14).
A SUS shield cover (4) is mounted on the surface of the circuit board (14) so as to cover a plurality of electronic components (15) related to the communication function on the circuit board (14).

Furthermore, a SUS reinforcing plate (5) is provided on the surface of the circuit board (14) so as to cover the shield cover (4), and the reinforcing plate (5) is the same as the shield cover (4). It is connected to a ground potential portion (not shown) on the circuit board (14).
A cushion member (41) is attached to the end of the shield cover (4) at its end, and the gap with the reinforcing plate (5) is adjusted by the cushion member (41).

  The surface of the reinforcing plate (5) is opposed to a key sheet (not shown) installed on the inner surface of the front case half (13) and is provided on the surface of the front case half (13). It is possible to receive the pressing force accompanying the pressing operation of the plurality of numeric keys (11).

  The back case half (12) of the base housing (1) has an opening (12a) for accommodating the battery (9) as shown in FIG. 8, and covers the opening (12a) to cover the battery lid. (17) is attached. A back cover (16) having a camera window (16a) is attached to the back surface of the back side case half (12).

Also, inside the base casing (1), on the chassis (7), a card reader (6) for reading the SIM card (60) and the SIM card (60) are transferred into the card reader (6). A card tray (61) is installed for this purpose.
A battery installation surface (71) for installing the battery (9) is formed on the rear surface of the chassis (7), and an area connected to the card reader installation surface (73) is formed on the battery installation surface (71). Further, a concave surface (72) for guiding the sliding of the card tray (61) is formed.
A label (19) is affixed to the battery installation surface (71) and the concave surface (72).

  Here, the concave surface (72) is formed at a position slightly lower than the battery installation surface (71), and the card reader installation surface (73) is formed at a position lower than the concave surface (72). A slope portion (74) that connects the concave surface (72) and the card reader installation surface (73) is formed at a boundary position between the concave surface (72) and the card reader installation surface (73).

Specifically, as shown in FIG. 12A, the elastic member 8 shown in FIG. 4 includes a sponge-like elastic sheet 81 attached to the surface of the front case half 13 and the elastic member. A resin sheet (82) attached to the surface of the sheet (81) and a highly slidable sheet (83) attached to the surface of the resin sheet (82).
The resin sheet (82) covers the entire surface of the elastic sheet (81) and extends to the opposite side of the rib (18), and reaches the surface of the front side case half (13), whereby the elastic sheet ( On the surface of 81), an inclined surface is formed which is inclined downward toward the surface side case half (13).
The highly slidable sheet (83) covers the entire surface of the resin sheet (82) and extends to the opposite side of the rib (18), and is against the surface of the surface side case half (13). On the surface of the highly slidable sheet (83), a gentle slope is formed so as to incline toward the front case half (13) side.

9 to 11 show a process in which the slide housing (2) slides from the open position toward the closed position.
In the state where the slide housing (2) is held in the open position as shown in FIG. 9, the convex portion (25) of the rear case half (23) of the slide housing (2) is formed on the base housing (1). It is spaced apart from the elastic member (8) on the front case half (13) (see FIG. 12 (a)).

When the slide housing (2) reaches just before the closed position as shown in FIG. 10 from this state, the convex portion (25) comes into contact with the slope area on the surface of the elastic member (8) as shown in FIG. 12 (b).
Further, when the slide housing (2) reaches the closed position as shown in FIG. 11, the convex portion (25) moves to the flat area through the slope area of the elastic member (8) as shown in FIG. (8) is elastically deformed in the thickness direction.

According to the slide type mobile phone according to the present invention, as described above, when the slide housing (2) reaches the closed position, the convex portion (25) on the slide housing (2) side becomes the base housing (1) side. The elastic member (8) is elastically deformed in the thickness direction, so that the elastic repulsive force of the elastic member (8) acts on the convex portion (25), and the slide housing (2 ) Is urged in a separating direction perpendicular to the sliding direction.
As a result, the play in the direction orthogonal to the sliding direction between the first plate member (32) and the second plate member (33) of the slide mechanism (3) shown in FIG. 5 is absorbed, and the base housing in the closed state is absorbed. A backlash between the body (1) and the slide housing (2) is prevented.

  Further, in the chassis (7), the concave surface (72) is lower than the battery installation surface (71), and the card reader installation surface (73) is lower than the concave surface (72). The card reader (6) can be installed at a lower position than the prior art by the height difference of the card reader installation surface (73). Accordingly, it is possible to reduce the thickness of the base casing (1) by the amount corresponding to the decrease in the position of the card reader (6) in the base casing (1).

  Moreover, the electronic component (15) covered with the shield cover (4) is also covered with the reinforcing plate (5), and is shielded by both the shield cover (4) and the reinforcing plate (5). The shielding effect equivalent to or higher than that of the shield by the conventional shield chassis can be obtained.

  Further, in the shield structure using the shield cover (4) and the reinforcing plate (5) instead of the conventional shield chassis, the shield cover (4) and the reinforcing plate (5) are each formed from a metal plate made of SUS. A thing with a small thickness can be adopted, and thereby, the base casing (1) is made thinner than the conventional structure using the shield chassis.

  In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim. For example, the rattling prevention mechanism comprising the elastic member (8) and the convex portion (25) according to the present invention is not limited to the configuration that functions in the closed state of the base housing (1) and the slide housing (2), but is in the open state. It is also possible to have a configuration that functions in the above.

It is the perspective view which looked at the slide type mobile phone concerning the present invention from the surface side. It is the perspective view which looked at this slide type cellular phone from the back side. It is a perspective view which shows the open state of this slide type mobile telephone. It is the perspective view which looked at the state which disassembled this slide type cellular phone from the surface side. It is the perspective view which looked at the state which disassembled this slide type cellular phone from the back side. It is a perspective view which shows the back surface of a slide housing | casing. It is the perspective view which looked at the state which decomposed | disassembled the base housing | casing from the surface side. It is the perspective view which looked at the state which decomposed | disassembled the base housing | casing from the back side. It is sectional drawing of the base housing | casing and slide housing | casing in an open state. It is sectional drawing of a base housing | casing and a slide housing | casing just before a closed state. It is sectional drawing of a base housing | casing and a slide housing | casing in a closed state. It is a series of principal part sectional views showing operation of the rattling prevention mechanism which consists of an elastic member and a convex part.

Explanation of symbols

(1) Base housing
(11) Numeric keypad
(12) Rear case half
(13) Front case half
(2) Slide housing
(21) Display
(23) Rear case half
(24) Front case half
(25) Convex
(3) Slide mechanism
(14) Circuit board
(15) Electronic components
(4) Shield cover
(5) Reinforcement plate
(6) Card reader
(61) Card tray
(7) Chassis
(71) Battery installation surface
(72) Tray guide surface
(73) Card reader installation surface
(74) Slope part
(8) Elastic member
(9) Battery

Claims (3)

The first housing and the second housing are slidably engaged with each other by the slide mechanism, the closed state in which both housings overlap with the maximum overlap area, and the open state in which both housings overlap with the minimum overlap area In a slide-type small electronic device that can set
An elastic member (8) that is elastically deformable in a direction orthogonal to the opposing surface is disposed on a surface of the first housing facing the second housing, and the first housing of the second housing is connected to the first housing. The opposing surface is formed with a projecting portion (25) that is slidably contacted with the surface of the elastic member (8) in a closed state or an open state to elastically deform the elastic member (8). Small electronic equipment.   The slide-type small electronic device according to claim 1, wherein the surface of the elastic member (8) is formed on a slope inclined in a plane including the approaching and separating direction of the convex portion (25).   The elastic member (8) includes an elastic sheet (81) attached to the opposing surface of the first housing and a highly slidable sheet (83) to which the convex portion (25) should be slidably contacted. The slide-type small electronic device according to claim 1 or 2.

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