JP2010074440A - Mobile terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal device which suppresses the generation of a deviation at an attachment position of a connection part when casings are connected to each other, and prevents the deviation from occurring in an overlap between the casings. <P>SOLUTION: The portable terminal device includes a connection part 250 of a 2-spindle hinge structure which is fastened to a fixed casing 100 and a movable casing by a screw 11 to connect both casings. There are formed abutment parts 105a, 105b, and 206 for abutting on the connection part 250 from the side of restraining the movement of the connection part 250 in a rotation direction of the screw 11 when the connection part 250 is fastened to at least one of the fixed casing 100 and the movable casing. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mobile terminal device, and more particularly to a mobile terminal device having a connecting portion having a biaxial hinge structure.

  In recent mobile phones, in order to meet demands for reducing the thickness and size of mobile phones, two housings (a fixed housing and a movable housing) are connected via a connecting portion having a biaxial hinge structure. Many are connected. As the biaxial hinge structure, for example, an open / close shaft that allows the movable housing to be opened and closed with respect to the fixed housing, and a rotary shaft that allows the movable housing to rotate about an axis orthogonal to the open / close shaft, A structure having two axes is used (see Patent Document 1).

JP 2005-299835 A

  In such a mobile phone, when the fixed housing and the movable housing are connected, the connecting portion is fastened to both the housings with screws. However, when the connecting portion is fastened with a screw, there may be a deviation in the attachment position of the connecting portion due to torque tightening the screw. Due to the displacement of the attachment position of the connecting portion, there is a problem that when the mobile phone is closed, a displacement occurs in the overlap between the housings of the fixed housing and the movable housing. Even if the displacement generated at the attachment position of the connecting portion is slight, the influence of the attachment position is increased at a portion away from the connection portion, and the overlap between the casings is increased.

  The disclosed technology has been made in order to solve the above-described problems caused by the prior art, and when connecting the housings to each other, it is possible to prevent the housings from being attached to each other. It is an object of the present invention to provide a portable terminal device that can prevent a deviation from occurring in the overlap.

  In order to solve the above-described problems and achieve the object, a portable terminal device disclosed in the present application is, in one aspect, connected to a fixed housing and a movable housing with screws to connect the two housings. A connecting part having a shaft hinge structure is provided, and the connecting part is prevented from moving in the rotational direction of the screw when fastening the connecting part to at least one of the fixed side housing and the movable side housing. An abutting portion that abuts is formed.

  According to one aspect of the mobile terminal device disclosed in the present application, the connection portion is prevented from moving in the rotation direction of the screw when the connection portion is fastened to at least one of the fixed-side housing and the movable-side housing. Since the abutting portion that abuts against the connecting portion from the side is formed, when the connecting portion is fastened with a screw, the attachment position of the connecting portion is prevented from being displaced, and the housings are displaced from each other. There is an effect that can be prevented.

  Exemplary embodiments of a mobile terminal device disclosed in the present application will be described below in detail with reference to the accompanying drawings. This embodiment shows an application example to a mobile phone as a mobile terminal device. Note that the present invention is not limited to the embodiments.

  Here, FIG. 1 is an external perspective view showing an open state of the mobile phone 10 according to the embodiment. 2 is an external perspective view of the connecting portion 250 included in the mobile phone 10 shown in FIG. The mobile phone 10 includes a fixed casing 100, a movable casing 200, and a hinge cover (cover portion) 300, and is generally configured.

  The mobile phone 10 is used for transmission, and includes a fixed-side housing 100 having various operation keys such as a numeric keypad 102 having function keys (0 to 9) and function keys (mode setting keys) 104, and the like. The fixed-side housing 100 and the movable-side housing 200 formed to have approximately the same size are connected to each other by a connecting portion 250 (see also FIG. 2) so as to be opened and closed (folded).

  As shown in FIG. 2, the connecting portion 250 includes a fixed side attaching portion 12, a first rotating portion 14, a second rotating portion 16, and a movable side attaching portion 18. The fixed side attachment portion 12 is for attaching the connecting portion 250 to the fixed side housing 100. Mounting holes 12 a and 12 b are formed in the fixed side mounting portion 12. The connecting portion 250 is attached to the fixed-side housing 100 by fastening the fixed-side attachment portion 12 to the fixed-side housing 100 with the screws 11 that pass through the attachment holes 12a and 12b.

  The first rotating part 14 is rotatable about a first axis (opening / closing axis) 20 with respect to the fixed side mounting part 12. The first rotating unit 14 can open and close the movable casing 200 with respect to the fixed casing 100 by rotation about the first shaft 20 (see also FIG. 1).

  The second rotating unit 16 is rotatable about a second axis (rotating shaft) 22 with respect to the first rotating unit 14. The second shaft 22 is substantially orthogonal to the first shaft, and allows the movable housing 200 to rotate.

  The movable side attaching portion 18 is formed integrally with the second rotating portion 16. The movable side attaching part 18 is for attaching the connecting part 250 to the movable side casing 200. An attachment hole 18 a is formed in the movable side attachment portion 18. The connecting portion 250 is attached to the movable housing 200 by fastening the movable attachment 18 to the movable housing 200 with the screw 11 passing through the attachment hole 18a.

  That is, by attaching the connecting portion 250 to the fixed-side housing 100 and the movable-side housing 200, the fixed-side housing 100 and the movable-side housing 200 are connected, and the movable-side housing 200 with respect to the fixed-side housing 100 is connected. The movable casing 200 is rotatable about the second shaft 22.

  The fixed housing 100 is divided into two parts, a fixed front case 110 on which an operation panel 101 having various operation keys such as a numeric keypad 102 is arranged, and a fixed rear case 120 located on the back side (lower side in FIG. 1). It has a structure.

  As shown in the figure, the fixed front case 110 is provided with a mouthpiece 103 in which the numeric keypad 102, the function key 104 and a microphone for converting a user's voice into an electric signal are disposed. Yes. The two cases 110 and 120 are assembled by screwing and fixing with mounting screws (not shown) at four positions.

  FIG. 3 is a diagram illustrating the fixed-side housing 100 before the connecting portion 250 is attached. FIG. 4 is a diagram illustrating a state where the connecting portion 250 is attached to the fixed-side housing 100. A screw hole 100 a for screwing the screw 11 when attaching the connecting portion 250 to the fixed side housing 100 is formed in the fixed side housing 100.

  The fixed housing 100 is formed with contact ribs (contact portions) 105a and 105b. When the connecting portion 250 is fastened to the stationary housing 100 with the screw 11, the contact ribs 105 a and 105 b are displaced in the attaching direction of the connecting portion 250 as the connecting portion 250 rotates in the rotation direction of the screw 11. To prevent. The displacement of the attachment position of the connecting portion 250 is such that the inner diameters of the attachment holes 12a and 12b are formed slightly larger than the outer diameter of the screw 11, and the torque applied when the screw 11 is fastened is connected by frictional force. This is caused by adding to the part 250.

  Here, the position where the abutment rib 105a is formed is a side (indicated by an arrow X) that prevents the connecting portion 250 from rotating in the rotation direction of the screw 11 when the connecting portion 250 is fastened through the mounting hole 12a. It is a position that comes into contact with the connecting portion 250 from the direction shown). Further, the position where the contact rib 105b is formed is a side (indicated by an arrow Y) that prevents the connecting portion 250 from rotating in the rotation direction of the screw 11 when the connecting portion 250 is fastened through the mounting hole 12b. It is a position that comes into contact with the connecting portion 250 from the direction side. The contact ribs 105 a and 105 b are formed at positions where the ribs are diagonal to the connecting portion 250.

  The movable casing 200 is formed with substantially the same planar dimensions as the fixed casing 100, and the casings overlap with each other with the mobile phone 10 closed (see also FIG. 10). The movable casing 200 includes a two-part structure of a movable front case 210 and a movable rear case 220 located on the back side (lower side in FIG. 1). As shown in the figure, a large display panel 201 for visually recognizing an LCD module (liquid crystal display module) 205 is provided at a substantially central portion of the surface of the movable front case 210 among them.

  In addition, an earpiece 202 is provided at the upper end portion of the movable front case 210 so that the user of the mobile phone 10 can touch the ear and listen to the voice. Inside the earpiece 202, a speaker for converting an electrical signal into sound is disposed. These cases 210 and 220 are also attached and fixed at four positions by attachment screws (not shown), and a screw cover cover 203 is provided at the upper position of the display panel 201.

  FIG. 5 is a diagram illustrating the movable-side housing 200 before the connecting portion 250 is attached. FIG. 6 is a diagram illustrating a state where the connecting portion 250 is attached to the movable housing 200. The movable housing 200 is formed with a screw hole 200 a for screwing the screw 11 when the connecting portion 250 is attached to the movable housing 200.

  A contact rib (contact portion) 206 is formed on the movable housing 200. The abutment rib 206 is configured to prevent the connecting portion 250 from rotating when the connecting portion 250 is fastened to the movable housing 200 with the screw 11, so that the attachment position of the connecting portion 250 is displaced. prevent. The displacement of the attachment position of the connecting portion 250 is such that the inner diameter of the attachment hole 18a is slightly larger than the outer diameter of the screw 11, and the torque applied when the screw 11 is fastened is caused by frictional force. It is caused by joining.

  Here, the position where the abutment rib 206 is formed is such that when the connecting portion 250 is fastened via the mounting hole 18a, the connecting portion 250 is prevented from rotating in the rotation direction of the screw 11 (in the direction of the arrow Z). It is a position that comes into contact with the connecting portion 250 from the direction shown).

  As shown in FIG. 7, the movable housing 200 is provided with an angle correction pad 260. The angle correction pads 260 are arranged on both sides of the second shaft 22 on the connection side of the movable housing 200 and the movable housing 200 rotating. The angle correction pad 260 is positioned in the gap between the hinge cover 300 and the movable casing 200 which will be described in detail later. The angle correction pad 260 is the distance between the movable housing 200 and the hinge cover 300 when there is no deviation in the overlap between the fixed housing 100 and the movable housing 200 when the mobile phone 10 is closed. It is formed with a substantially equal thickness. The angle correction pad 260 is made of a material having a low coefficient of friction such as polyacetal. Accordingly, even when the angle correction pad 260 and the hinge cover 300 are in contact with each other, the movable housing 200 is smoothly rotated without being obstructed by the frictional force between the angle correction pad 260 and the hinge cover 300. be able to.

  FIG. 8 is an external perspective view of the hinge cover 300. The hinge cover 300 mainly covers the first rotating portion 14 portion of the connecting portion 250, and rotates around the first shaft 20 in accordance with the opening / closing operation of the movable casing 200 (see also FIG. 1). The facing surface 300a of the hinge cover 300 that faces the movable housing 200 is a flat surface. The angle correction pad 260 described above is located in a gap formed by the facing surface 300a and the movable housing 200.

  Next, the operation of correcting the angle of the second shaft 22 by the angle correction pad 260 will be described with reference to FIGS. For example, when the first shaft 20 and the second shaft 22 are not orthogonal due to a manufacturing error of the connecting portion 250, as shown in FIG. Is different from the thickness of the angle correction cover 260. However, by positioning the angle correction pad 260 in the gap between the movable casing 200 and the hinge cover 300, the movable casing 200 and the hinge cover 300 are varied depending on the thickness of the angle correction pad 260, as shown in FIG. And the angle of the second axis 22 with respect to the first axis 20 is also corrected to an appropriate angle. That is, the facing surface 300 a of the hinge cover 300 corresponds to the angle correction pad 260, and the distance between the movable housing 200 and the hinge cover 300 is not smaller than the thickness of the angle correction pad 260.

  Further, even when the angle of the second shaft 22 is shifted when the movable housing 200 is rotated around the second shaft 22, the movable housing 200 is moved as shown in FIG. 9-2. If it returns to a state, the angle of the 2nd axis | shaft 22 can be returned to an appropriate angle.

  Further, since the facing surface 300a of the hinge cover 300 corresponding to the angle correction pad 260 is a flat surface, the angle of the second shaft 22 can be corrected with higher accuracy than when the counterpart is a curved surface. FIG. 10 is an external perspective view of the cellular phone 10 in a closed state, but the regions A located on both sides of the hinge cover 300 are often configured with curved surfaces in consideration of design and the like. However, in the mobile phone 10 according to the present embodiment, the portion corresponding to the angle correction pad 260 is the flat facing surface 300a. Therefore, the angle correction of the second shaft 22 is performed regardless of the design of the mobile phone 10. Can be performed with high accuracy.

  In addition, since the hinge cover 300 rotates together with the movable housing 200, the portion corresponding to the angle correction pad 260 can always be the facing surface 300a. Thereby, the angle correction of the second shaft 22 can be accurately performed regardless of the degree of opening and closing of the movable housing 200.

  As described above, in the cellular phone 10 according to the present embodiment, the contact ribs 105 a and 105 b formed on the fixed-side housing 100 and the contact rib 206 formed on the movable-side housing 200 serve as the connecting portion 250. Since the connecting portion 250 comes into contact with the connecting portion 250 in a direction in which the connecting portion 250 is prevented from rotating in the rotation direction of the screw 11 when fastened with the screw 11, it is possible to prevent the attachment position of the connecting portion 250 from being displaced. Thereby, it is possible to prevent a deviation from occurring in the overlap between the housings 100 and 200 when the cellular phone 10 is closed.

  Further, the contact ribs 105 a and 105 b of the fixed-side housing 100 are formed at diagonal positions with respect to the fixed-side mounting portion 12 of the connecting portion 250, so that the connecting portions are connected to the fixed-side housing 100. When attaching 250, the positioning can be easily performed using the contact ribs 105a and 105b.

  In the present embodiment, the angle correction pad 260 is provided on the movable housing 200, but the present invention is not limited to this, and the angle correction pad 260 may be provided on the hinge cover 300. Further, the angle correction pad 260 may be provided on both the movable housing 200 and the hinge cover 300.

It is an external appearance perspective view which shows the open state of the mobile telephone which concerns on an Example. It is an external appearance perspective view of the connection part which a mobile telephone has. It is a figure which shows the stationary side housing | casing before attaching a connection part. It is a figure which shows the state which attached the connection part to the stationary side housing | casing. It is a figure which shows the movable side housing | casing before attaching a connection part. It is a figure which shows the state which attached the connection part to the movable side housing | casing. It is a figure for demonstrating the angle correction pad provided in the movable side housing | casing. It is an external appearance perspective view of a hinge cover. It is a mimetic diagram showing the state where the 2nd axis is not orthogonal to the 1st axis. It is a schematic diagram which shows the state by which the angle of the 2nd axis | shaft was correct | amended with the angle correction pad. It is a figure which shows the closed state of a mobile telephone.

Explanation of symbols

10 Mobile phone (mobile terminal device)
20 First shaft (open / close shaft)
22 Second axis (rotary axis)
100 Fixed housing 105a, 105b Contact rib (contact portion)
200 Movable housing 205 LCD module (liquid crystal display module)
206 Contact rib (contact part)
250 connecting portion 260 angle correction pad 300 hinge cover

Claims (4)

A movable housing having a liquid crystal display module;
A fixed housing having an operation key;
An opening / closing axis that is fastened to the movable side casing and the fixed side casing with a screw so that the movable side casing can be opened and closed with respect to the fixed side casing, and the movable side substantially orthogonal to the opening / closing axis A connecting portion of a biaxial hinge structure that connects the movable casing and the fixed casing with a rotation shaft that allows the casing to rotate, and a portable terminal device comprising:
At least one of the movable-side housing and the fixed-side housing is in contact with the connecting portion from the side that prevents the connecting portion from moving in the rotational direction of the screw when the connecting portion is fastened. A portable terminal device characterized in that a contact portion is formed. A movable housing having a liquid crystal display module;
A fixed housing having an operation key;
An opening / closing axis that is fastened to the movable side casing and the fixed side casing with a screw so that the movable side casing can be opened and closed with respect to the fixed side casing, and the movable side substantially orthogonal to the opening / closing axis A portable terminal device comprising: a biaxial hinge structure coupling portion that couples the movable housing and the stationary housing with a rotation shaft that allows the housing to rotate; and a cover portion that covers the coupling portion. There,
At least one of the movable housing and the cover has an angle correction pad that is located in a gap between the movable housing and the cover and corrects an angle of the rotation shaft with respect to the fixed shaft,
A surface of the movable housing or the cover portion that faces the angle correction pad is a flat surface.   The mobile terminal device according to claim 2, wherein the angle correction pad unit is configured using polyacetal. A movable housing having a liquid crystal display module;
A fixed housing having an operation key;
An opening / closing axis that is fastened to the movable side casing and the fixed side casing with a screw so that the movable side casing can be opened and closed with respect to the fixed side casing, and the movable side substantially orthogonal to the opening / closing axis A portable terminal device comprising: a biaxial hinge structure coupling portion that couples the movable housing and the stationary housing with a rotation shaft that allows the housing to rotate; and a cover portion that covers the coupling portion. There,
At least one of the movable-side housing and the fixed-side housing is in contact with the connecting portion from the side that prevents the connecting portion from moving in the rotational direction of the screw when the connecting portion is fastened. A tangent is formed,
At least one of the movable housing and the cover has an angle correction pad that is located in a gap between the movable housing and the cover and corrects an angle of the rotation shaft with respect to the fixed shaft,
A surface of the movable housing or the cover portion that faces the angle correction pad is a flat surface.

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