JP4056490B2 - Unit abutment structure and foldable mobile phone using the same - Google Patents

Description

  The present invention relates to a unit abutment structure and a foldable mobile phone using the unit abutment structure, and more particularly, to a unit abutment structure in a foldable mobile phone having a structure in which an upper unit is rotatably connected to a lower unit by a hinge mechanism. It is about improvement.

  In a foldable mobile phone, an upper unit having a display unit is connected to a lower unit having an operation unit via a hinge mechanism so that the upper unit can be opened and closed with respect to the lower unit. Yes. When the upper unit is in the open state, it is necessary that the development of the upper unit be stopped in a state where the angle formed by the upper unit and the lower unit is 160 to 170 degrees. An example of a structure for reliably stopping the upper unit is disclosed in Patent Document 1.

FIG. 5 is a diagram showing a structure in Patent Document 1, and (A) to (C) show side views in the case of unfolding from a folded state. Upper abutment ribs 33 and 34 are provided on the housing end surface 14 of the upper unit 200, and the upper abutment ribs 33 and 34 are provided in the longitudinal direction of the housing end surface 14 and on both sides in the longitudinal direction. Thus, when unfolded from the folded state, it faces the lower abutment ribs 31 and 32 of the housing end surface 15 of the lower unit 100 so as to abut against each other.
JP 2002-344601 A

  In such a foldable mobile phone, in addition to opening and closing the upper unit with respect to the lower unit, the upper unit is further perpendicular to the opening and closing axis (first rotation axis) using a biaxial hinge mechanism. The thing which can be rotated centering on the 2nd rotating shaft provided in has started to prevail. In a foldable mobile phone having such a biaxial hinge mechanism, when the upper unit 200 is opened, the state shown in FIG. 5C, that is, the display surface of the upper unit 200 is shown in FIG. In addition to the left-facing state of), the opposite-right state occurs.

  In order to ensure that the upper unit stops being deployed in both of these states, in addition to the abutment ribs 33 and 34, the abutment rib at the time of deployment in a state where the upper unit 200 faces rightward. Is required, and at least four butting ribs are provided on the end surface portion of the upper unit 200. When the upper unit 200 is rotated around the second rotation axis, these abutting ribs become an obstacle, which is extremely inconvenient in design.

  An object of the present invention is to provide a unit abutment structure suitable for use in an electronic device having a biaxial hinge structure and a mobile phone using the same, with as few abutment ribs as possible.

Ruyu knit abutment structure by the present invention, freely expand second unit to the first unit around the shaft first time, and said first and said second unit to said first unit A unit abutment structure in a foldable portable terminal that is connected by a two-axis hinge unit so as to be rotatable about a second rotation axis perpendicular to the rotation axis. In a state where the first unit is in a state where the first unit is in contact with the second unit in a state where the first unit is developed around the dynamic axis, and in a state where the second unit is developed around the first rotation axis. A concave portion provided on a unit abutting surface of the second unit with the first unit, the concave portion being engageable with the convex portion, and a state in which the second unit is rotated around the second rotation shaft and deployed. Of the second unit in Provided on the unit abutting surface between the serial first unit characterized in that it comprises a said convex portion and the fitting freely recess.

  Furthermore, the rib provided in the contact surface with the said convex part of the said recessed part is characterized by the above-mentioned. And the said rib is provided with two or more, It is characterized by the above-mentioned. In addition, a foldable mobile phone according to the present invention includes the unit abutting structure.

  The operation of the present invention will be described. On the unit abutting surface of the lower unit having the operation surface and the upper unit having the display surface, the lower unit is provided with a convex portion, and the rear housing and the display surface housing of the upper unit are provided with a concave portion. When the upper unit is fully deployed around the deployment axis by the biaxial hinge unit, the convex portion fits into the concave portion of the rear housing. Further, when the upper unit is rotated 180 degrees around the axis orthogonal to the expansion axis and then fully expanded, the convex portion fits into the concave portion of the display surface housing.

  On the unit abutting surface, a convex part is provided on the unit that does not rotate, and a concave part is provided on the rotating unit, so that the concave part does not interfere with the rotation when the rotatable unit rotates. .

  According to the present invention, there is an effect that the structure of the abutting portion of both units when the upper unit is fully expanded with respect to the lower unit can also be applied to a mobile phone having a biaxial hinge structure.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a foldable mobile phone to which an embodiment of the present invention is applied. 1A shows a normally closed state when the upper unit 200 is closed with respect to the lower unit 100, and FIG. 1B shows a state where the upper unit 200 is opened 90 degrees from the state of FIG. Show. (C) in the state of (B), the upper unit 200 is rotated 180 degrees around the second rotation axis perpendicular to the opening axis (first rotation axis) by using the function of the biaxial hinge unit assembly 10. A state in which the upper unit 200 is closed from the state of (C) is shown.

  In FIG. 1, 101 is an operation surface of the lower unit 100, 201 is a display surface housing of the upper unit 200, and 202 is a rear housing of the upper unit 200.

  In the present embodiment, as shown in the side view of FIG. 2, the abutting structure when the upper unit 200 and the lower unit 100 are deployed is on the abutting surface of the lower unit 100 with the upper unit 200. Are provided with convex portions 110a and 110b (FIG. 2A), and corresponding portions of the upper unit 200 are provided with concave portions 210a and 210b and 220a and 220b (FIG. 2B). The recesses 210a and 210b are provided on the abutting surface of the upper unit 200 with the lower unit 100 of the rear housing 202 as can be seen from FIG. 1 (A) and FIG. 2 (B). Further, the recesses 220a and 220b are provided on the abutting surface of the upper unit 200 with the lower unit 100 of the display surface housing 201, as can be seen from FIG. 1D and FIG. ing.

  In such a configuration, when the upper unit 200 is further expanded from the state of FIG. 1B, the abutting portions of both units are such that the protrusions 110a and 110b are formed in the recesses 210a and 210b, respectively, as shown in the enlarged view of FIG. As a result, the upper unit 200 is reliably stopped from being deployed. In addition, when the upper unit 200 is further expanded from the state of FIG. 1 (C), the abutting portions of both units are not particularly illustrated, but the convex portions 110a and 110b are fitted into the concave portions 220a and 220b, respectively. .

  Here, in FIG. 2 and FIG. 3, the rib of the ridge shown as 221 is provided on the surface of each of the recesses 210 a, 210 b, 220 a, 220 b that contacts the projections 110 a, 110 b, and the rib portion of the recess 210 a The cross section of is shown in FIG. The reason why the protruding ribs 221 are provided is as follows.

  That is, the coating of the casing including the convex portions and the concave portions at the abutting portion is a UV (ultraviolet) coating, and thus is hard. In such a contact between the hard convex portion and the concave portion, when the upper and lower units are fully developed, a squeak noise is generated, a scratch is generated, and a paint drop occurs. In order to minimize the occurrence of squeak noise, scratches, paint removal, etc., a plurality of convex ribs 221 are provided along the direction from the opening to the bottom of the concave portion so that the contact area between the convex portion and the concave portion is as small as possible. I try to reduce it. But this convex rib 221 is not essential.

  In the above embodiment, the present invention is applied to a folding mobile phone having a biaxial hinge structure. However, the present invention is not limited to a biaxial hinge structure, and can be applied to a general uniaxial hinge structure. It is obvious.

1 is an external perspective view of a foldable mobile phone to which the present invention is applied, in which (A) shows a normal folded state, and (B) is an upper unit developed 90 degrees with respect to the lower unit from the state of (A). (C) shows a state where the upper unit is rotated from the state of (B) by 180 degrees around a second rotation axis perpendicular to the deployment axis (first rotation axis), and (D ) Shows a state in which the upper unit is closed from the state of (C). (A) is a front view of the unit abutting surface of the lower unit, and (B) is a front view of the unit abutting surface of the upper unit. It is an enlarged view of a unit abutting part. It is sectional drawing of the recessed part in the unit abutting surface in the back housing | casing of an upper unit. It is a figure explaining the conventional unit abutting structure in a foldable mobile telephone.

Explanation of symbols

10 2-axis hinge unit assembly
100 Lower unit
101 Operation surface
110a, 110b Convex part
200 Upper unit
201 Display housing
202 Rear casing 210a, 210b, 220a, 220b Recess
221 Convex rib

Claims (4)

The second unit can be expanded with respect to the first unit around the first rotation axis, and the second unit can be expanded with respect to the first unit. The second rotation axis can be perpendicular to the first rotation axis. A unit abutting structure in a foldable portable terminal that is pivotally connected to a center by a two-axis hinge unit,
A convex portion provided on a unit abutting surface of the first unit with the second unit in a state where the second unit is developed around the first rotation axis;
A concave portion provided on a unit abutting surface of the second unit with the first unit in a state where the second unit is developed around the first rotation axis;
A concave portion provided on a unit abutting surface of the second unit with the first unit in a state in which the second unit is rotated about the second rotation axis and is unfolded; ,
A unit abutment structure characterized by including: Those the contact surface ribs provided, abut unit according to claim 1 Symbol placement, further comprising structure of the convex portion of the concave portion. The unit abutting structure according to claim 2, wherein a plurality of the ribs are provided. A foldable mobile phone using the unit abutment structure according to any one of claims 1 to 3 .

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