JP5110527B2 - Hinge mounting structure and folding electronic device - Google Patents

Description

  The present invention relates to a biaxial hinge mounting structure that can be opened in the vertical direction and the horizontal direction from the folded state of the first casing and the second casing, and the folding including the hinge mounting structure. The present invention relates to a type electronic device.

Patent Document 1 discloses a mobile phone having a biaxial hinge that allows an upper housing having a display unit and a lower housing having an operation unit to be foldable.
That is, in Patent Document 1, a first rotating shaft that allows the upper housing and the lower housing to be foldable, and a second rotating shaft that allows the upper housing to rotate while being opened with respect to the lower housing, A mobile phone having a biaxial hinge comprising: a frame portion in which the first rotating shaft is provided with a pair of left and right rotating portions and integrally connects the pair of left and right rotating portions In addition, a second rotation axis orthogonal to the first rotation axis is provided. The first rotation shaft is fixed to the lower housing on both the left and right sides, and the second rotation shaft is fixed to the upper housing.
JP 2005-188641 A

By the way, unlike the thing of patent document 1, although there exist some which made it possible to make a housing | casing open freely from a folding state, or to make it open horizontally, a 1st rotating shaft and 2nd rotation are possible. Since the shaft has an orthogonal shape at one side of the housing, it is not possible to provide a plurality of rotating portions as the first rotating shaft as in Patent Document 1, and the first rotating shaft is attached to the lower housing. It cannot be firmly fixed on both the left and right sides.
Therefore, when the biaxial hinge has a shape in which the first rotation axis and the second rotation axis are orthogonal to each other on one side of the housing, the first rotation axis is the second rotation axis side. It will be fixed in a cantilevered manner at the opposite end, which is weak in strength and easy to play.

  An object of the present invention is to provide a two-shaft hinge mounting structure that can be opened in the vertical direction and the horizontal direction from the folded state of the first casing and the second casing. And to improve.

In order to solve the above problems, the invention described in claim 1
A first rotating shaft that relatively rotates from a state in which the first housing and the second housing are folded and opens in a first direction;
A second rotating shaft that opens the first housing and the second housing in a second direction orthogonal to the first direction;
A connecting portion for connecting the first rotating shaft and the second rotating shaft so as to be relatively rotatable in a state in which the first rotating shaft and the second rotating shaft are orthogonal to each other;
A first attachment portion provided on a peripheral surface of the first rotation shaft, and attaching the first rotation shaft to the first housing;
A second attachment portion that extends from an end of the second rotation shaft and attaches the second rotation shaft to a second housing;
A third attachment portion provided on an end surface of the first rotation shaft, and attaching the first rotation shaft to the first housing;
Equipped with a,
At least one of the first attachment portion and the third attachment portion has a hinge attachment structure in which a plurality of the attachment portions are provided .

  Invention of Claim 2 is the hinge attachment structure of Claim 1, Comprising: The said 1st attaching part is provided on the axis | shaft of the surrounding surface of a said 1st rotating shaft. And

  Invention of Claim 3 is the hinge attachment structure of Claim 1 or 2, Comprising: The said 1st attachment part is extended and provided from the surrounding surface of the said 1st rotating shaft. It is characterized by.

Invention of Claim 4 is the hinge attachment structure as described in any one of Claim 1 to 3, Comprising:
A plurality of attachment holes for screwing and fixing to the first housing are formed in the third attachment portion,
At least two of the plurality of mounting holes are formed along a direction orthogonal to the first rotation axis.

  The invention according to claim 5 is a foldable electronic apparatus in which the first casing and the second casing are foldable, and the hinge mounting structure according to any one of claims 1 to 4 It is characterized by providing.

  According to the present invention, the two housings are provided with two rotation shafts that are opened in the first direction from the folded state or opened in the second direction orthogonal to the first direction. The two rotation shafts can be made compact, and there is no backlash, and the strength can be secured to the housing with high strength.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
(Embodiment)
FIG. 1 shows a mobile phone as a configuration of an embodiment of a foldable electronic device to which the present invention is applied. 1 is a first housing, 2 is a second housing, 3 is a biaxial hinge portion, 4 is an operation unit, 5 is a display unit, 6 is a first hinge cover, and 7 is a second hinge cover.

  The first casing 1 and the second casing 2 are coupled via a biaxial hinge portion 3 so as to be foldable and openable in the vertical and horizontal directions. As illustrated, the operation unit 4 is provided in the first housing 1, the display unit 5 is provided in the second housing 2, and the biaxial hinge unit 3 is in the folded state in the second state. The first hinge cover 6 located at the upper right part of the housing 2 and the second hinge cover 7 located along the right side part of the second housing 2 are covered. 1A shows a folded state, FIG. 1B shows a vertically opened state, and FIG. 1C shows a horizontally opened state.

  FIGS. 2 to 5 show the relationship between the first housing 1 and the biaxial hinge portion 3, wherein 8 is a coaxial thin wire cable and 9 is a connector.

  The coaxial thin wire cable 8 is disposed through the hollow portion of the biaxial hinge 3 and is connected to the circuit boards in the first housing 1 and the second housing 2 by connectors 9 provided at both ends. The first housing 1 includes a lower case 11 made of resin, an upper case 12 and a middle case 13 made of metal.

  FIGS. 6 and 7 show the configuration of the biaxial hinge portion 3, and all of the components are made of metal, 31 is a first rotating shaft, 32 is a second rotating shaft, 33 is a connecting portion, Reference numerals 34 and 35 denote first attachment portions, reference numerals 36 and 37 denote third attachment portions, and reference numeral 38 denotes a second attachment portion.

  The first rotating shaft 31 and the second rotating shaft 32 are supported in a state in which the first rotating shaft 31 and the second rotating shaft 32 are connected to each other so as to be relatively rotatable by a three-dimensional L-shaped connecting portion 33 in a state where the ends are overlapped with each other. Yes. In addition, the 1st rotating shaft 31 and the 2nd rotating shaft 32 are hollow members, and the said coaxial fine wire cable 8 is arrange | positioned through the inside of the hollow part.

  In the embodiment, the first rotating shaft 31 includes four first mounting portions 34 and 35 and third mounting portions 36 and 37, and the lower case 11 and the middle case 13 in the first housing 1. The second rotating shaft 32 is screwed and fixed in the second housing 2 at one second mounting portion 38.

  That is, the first rotating shaft 31 and the second rotating shaft 32 whose axes are orthogonal to each other are rotatably supported by the three-dimensional L-shaped connecting portion 33, and the end portions 31a and 32a are overlapped with each other. Although not shown in the figure, cutout portions that are in contact with the peripheral surface of the other end portion are formed in portions where the end portions overlap each other. This notch is located at the same position in the folded state of the housing, allows rotation of only one rotating shaft, and restricts rotation of the other rotating shaft.

  The first rotating shaft 31 is formed with a first mounting portion 34 having a flat surface protruding in the center of the peripheral surface, and the first mounting portion 34 is on the side from the peripheral surface that is 90 degrees out of phase with the first mounting portion 34. The first mounting portion 35 is a first mounting portion 35 that is L-shaped in plan view and protrudes from the end surface on the side opposite to the second rotation shaft 32, and is a third mounting that is parallel to the pair of L-shaped brackets The parts 36 and 37 are integrally provided. In addition, the 1st attaching part 34 by a plane and one 3rd attaching part 37 by a pair of brackets have faced the same direction.

  Here, one mounting hole 34a is formed in the first mounting portion 34 by the projecting flat surface at the center of the first rotating shaft 31 and is seen in a plan view projecting laterally from the first rotating shaft 31. One mounting hole 35a is formed in the first mounting portion 35 of the L-shaped bracket. In addition, one attachment hole 36a is formed in the third attachment portion 36 formed by one parallel L-shaped bracket protruding from the end surface of the first rotation shaft 31, and the third attachment portion 36 formed by the other L-shaped bracket is formed by the other. Two attachment holes 37 a are formed in the three attachment portions 37.

  As described above, the first rotating shaft 31 including the four first mounting portions 34 and 35 and the third mounting portions 36 and 37 has a protruding plane at the center of the peripheral surface with respect to the first housing 1. As shown in FIGS. 4 and 5, the first mounting portion 34 is fixed to the lower case 11 with a screw N1 and fixed to the lower case 11 with a L-shaped cross section protruding from the end surface. The third mounting portion 37 is fixed to the lower case 11 with screws N2 by two mounting holes 37a.

  And the 1st attaching part 35 by the planar view L-shaped bracket which protruded to the side from the surrounding surface is screw-fixed with the screw | thread N3 with respect to the inner case 13 with one attachment hole 35a, as shown in FIG. At the same time, the third mounting portion 36 having an L-shaped cross section protruding from the end face is screwed and fixed to the bracket 14 extending from the middle case 13 with a screw N4 through one mounting hole 36a. As shown in FIG. 1, a cover 15 is attached to the upper side including the screw N4 of the first housing 1 (upper case 12).

  Further, the second rotating shaft 32 is integrally provided with a second attachment portion 38 by an arm extending laterally from an end surface opposite to the first rotating shaft 31. The second attachment portion 38 by this arm is formed to be longer than the first rotation shaft 31 in parallel with the first rotation shaft 31, and the tip portion thereof is formed in an L-shaped cross section.

  Here, in the second mounting portion 38, two mounting holes 38a are formed in the L-shaped tip end portion of the arm, and one mounting hole 38b is formed in the front portion of the L-shaped tip portion. Is formed.

  As described above, the second rotating shaft 32 including the second mounting portion 38 at one location is configured so that the second mounting portion 38 by the arm is connected to the second housing 2 at the tip of the L-shaped section. The two mounting holes 38a are fixed by screws with screws (not shown), and are fixed by screws with screws (not shown) in one mounting hole 38b in front of the L-shaped tip.

  The first casing 1 and the second casing 2 coupled via the biaxial hinge 3 described above are in a second state with respect to the first casing 1 from the folded state shown in FIG. For example, the housing 2 is rotated integrally with the connecting portion 33 with respect to the first rotating shaft 31 to be in the vertically opened state shown in FIG. 1B, or the second rotating shaft 32 with respect to the connecting portion 33, for example. Can be brought into the laterally open state shown in FIG. 1C.

  In addition, the vertical rotation of the second casing 2 with respect to the first casing 1 is performed at the end portions 31a and 32a of the first rotating shaft 31 and the second rotating shaft 32 in an overlapping arrangement with each other. The end portion 32a of the second rotating shaft 32 is adapted to the notch portion of the end portion 31a of the first rotating shaft 31, and the rotation is allowed. At this time, the rotation of the second rotating shaft 32 is restricted. Further, the lateral rotation of the second casing 2 with respect to the first casing 1 is such that the end 31 a of the first rotating shaft 31 is adapted to the notch of the end 32 a of the second rotating shaft 32. Rotation is allowed. At this time, the rotation of the first rotating shaft 31 is restricted.

  As described above, according to the mobile phone having the hinge mounting structure of the embodiment, the four first mounting portions 34 and 35 and the third mounting portions 36 and 37 provided on the peripheral surface of the first rotating shaft 31 Since the first rotary shaft 31 is attached to the lower case 11 and the middle case 13 of the first housing 1 with screws N1, N2, N3, and N4, the first rotary shaft 31 is kept compact while keeping the first rotary shaft 31 compact. There is not, and it can be fixed to a 1st housing | casing strong strongly.

  In addition, since the second rotating shaft 32 is attached to the second housing 2 with screws by the second mounting portion 38 provided to extend from the end portion of the second rotating shaft 32, the second rotating shaft 32 can also be fixed to the second casing 2 with strong strength and no rattling while keeping the compact.

(Modification)
In the above embodiment, the cellular phone is used. However, the present invention is not limited to this, and includes a hinge mechanism that opens vertically and horizontally such as a camera, a PDA, a notebook computer, a wearable computer, a calculator, and an electronic dictionary. It can be used for all portable electronic devices.
Further, the first casing and the second casing may be casings having any function, for example, both casings may be provided with a touch panel.
Further, the second rotation shaft may be divided into a plurality of parts.
Further, the configuration of the housing, the rotating shaft, the connecting portion, and the mounting portion is arbitrary, and it is needless to say that other specific detailed structures can be appropriately changed.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of one Embodiment of the foldable electronic device to which this invention is applied is shown, the perspective view (a) which showed the folding state of the mobile telephone, the perspective view (b) which showed the vertically open state, and a laterally open state It is the perspective view (c) which showed. It is a perspective view of the 1st housing | casing and hinge part of FIG. It is the perspective view which showed the 1st housing | casing of FIG. 2, and the fixing structure of a hinge part. It is the perspective view which showed the fixation structure with the hinge part in the back side of the 1st housing | casing of FIG. It is an enlarged view of the fixed structure part of FIG. It is the enlarged view which showed the structure of the hinge part of FIG. It is the figure which looked at the hinge part of FIG. 6 from the lower side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st housing | casing 11 Lower case 12 Upper case 13 Middle case 15 Cover 2 2nd housing | casing 3 2-axis hinge part 31 1st rotating shaft 32 2nd rotating shaft 33 Connection part 34 * 35 1st attachment Portions 34a and 35a Mounting holes 36 and 37 Third mounting portions 36a and 37a Mounting holes 38 Second mounting portions 38a and 38b Mounting holes 4 Operation unit 5 Display unit 6 First hinge cover 7 Second hinge cover 8 Coaxial Thin wire cable 9 Connector N1, N2, N3, N4 Screw

Claims (5)

A first rotating shaft that relatively rotates from a state in which the first housing and the second housing are folded and opens in a first direction;
A second rotating shaft that opens the first housing and the second housing in a second direction orthogonal to the first direction;
A connecting portion for connecting the first rotating shaft and the second rotating shaft so as to be relatively rotatable in a state in which the first rotating shaft and the second rotating shaft are orthogonal to each other;
A first attachment portion provided on a peripheral surface of the first rotation shaft, and attaching the first rotation shaft to the first housing;
A second attachment portion that extends from an end of the second rotation shaft and attaches the second rotation shaft to a second housing;
A third attachment portion provided on an end surface of the first rotation shaft, and attaching the first rotation shaft to the first housing;
Equipped with a,
A hinge mounting structure in which at least one of the first mounting portion and the third mounting portion is provided in plural .   The hinge mounting structure according to claim 1, wherein the first mounting portion is provided on an axis of a peripheral surface of the first rotating shaft.   The hinge mounting structure according to claim 1, wherein the first mounting portion is provided so as to extend from a peripheral surface of the first rotating shaft. A plurality of attachment holes for screwing and fixing to the first housing are formed in the third attachment portion,
The hinge according to any one of claims 1 to 3, wherein at least two of the plurality of mounting holes are formed along a direction orthogonal to the first rotation axis. Mounting structure. A foldable electronic device in which a first casing and a second casing are freely foldable,
A foldable electronic device comprising the hinge mounting structure according to any one of claims 1 to 4.

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