WO2008035895A1 - Charnière de terminal portable - Google Patents

Charnière de terminal portable Download PDF

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Publication number
WO2008035895A1
WO2008035895A1 PCT/KR2007/004501 KR2007004501W WO2008035895A1 WO 2008035895 A1 WO2008035895 A1 WO 2008035895A1 KR 2007004501 W KR2007004501 W KR 2007004501W WO 2008035895 A1 WO2008035895 A1 WO 2008035895A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
main
sloping
rotary
case
Prior art date
Application number
PCT/KR2007/004501
Other languages
English (en)
Inventor
Soon Wook Kwon
Original Assignee
Laird Technologies Map Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020060089930A external-priority patent/KR100756914B1/ko
Priority claimed from KR1020060090907A external-priority patent/KR100777226B1/ko
Application filed by Laird Technologies Map Co., Ltd. filed Critical Laird Technologies Map Co., Ltd.
Publication of WO2008035895A1 publication Critical patent/WO2008035895A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge

Definitions

  • the present invention relates to a hinge module for portable terminals, and more particularly, to a hinge module for portable terminals which can be applied to a folder- type cellular phone so as to automatically open and close a folder portion of the cellular phone.
  • the portable terminals are provided with a speaker device capable of realizing melodies of a variety of poly sounds, and a color display device having several millions of pixels.
  • the portable terminal implements a music listening function through an MP3 player besides a basic calling function, and is provided with various game contents using the display device as well as a digital multi-media broadcasting (DMB) function.
  • DMB digital multi-media broadcasting
  • a folder type terminal has a folder as a sub-body.
  • the folder is configured to be openably pivoted at a certain angle from a main body during its use.
  • the folder type terminal adopts a hinge module for pivotally interconnecting the folder and the main body.
  • a conventional hinge module is operated such that after being inserted onto a hinge arm of the folder or the main body, it is operated by a relative cooperation with a counterpart hinge arm.
  • the conventional folder type terminal as constructed above entails a shortcoming in that since users must directly open the folder from the main body with their fingers, the elderly, the disabled or the like may suffer from a difficulty in opening the folder. Disclosure of Invention Technical Problem [10] Accordingly, the present invention has been made in an effort to solve the above problem occurring in the prior art, and it is an object of the present invention to provide a hinge module for portable terminals which enables users to depress an operation key in a one-touch manner to cause a folder to be automatically opened from a main body so that even the weak and elderly or the disabled can readily and easily open the folder.
  • the present invention provides a hinge module for portable terminal, comprising: a hollow housing adapted to be opened at one side thereof; a case folder rotatably mounted to the opened one side of the case housing; a central shaft mounted inside the case housing to pass through the center of the case housing and the case folder; an operation key mounted to the case folder to linearly move in the case folder; a fixing guide adapted to securely fix the operation key to the case folder; a rotary cam adapted to rotate by a linear movement of the operation key; a main cam adapted to abut against the rotary cam at one side thereof so as to rotate, the main cam having a cam face formed at the other side thereof; a linear cam adapted to abut against the cam face of the main cam so as to move linearly; and a main spring mounted between the linear cam and the inner wall of the other side of the case housing, wherein the rotary cam and the main cam rotate together with the case folder by a linear movement of the operation key, and the linear cam move
  • the operation key has first sloping protrusions formed protrudingly therefrom in such a fashion as to be inclined at a distal end thereof toward the rotary cam so as to pass through the case folder, and the rotary cam has second sloping protrusions formed protrudingly therefrom so as to abut against the first sloping protrusions.
  • the rotary cam has a stopper formed protrudingly on one surface thereof toward the operation key, and the case folder has a stopper guide slot of an elongated curved shape formed therein for allowing the stopper to slidably move therealong.
  • a coil spring is interposed between the main cam 70 and the rotary cam.
  • the rotary cam has a pair of opposed first sloping sections formed on the other surface thereof toward the main cam, each first sloping projection being slanted at one lateral face thereof, and the main cam has a pair of opposed second sloping sections formed on one surface thereof so as to correspond to the first sloping sections of the rotary cam, each second sloping section being slanted at one lateral face thereof, and wherein the rotary cam has stop projections formed on the other surface thereof toward the main cam so as to abut against the other lateral faces of the second sloping sections of the main cam.
  • the main cam has a first cam face formed along an outer peripheral edge surface thereof and a second cam face formed along an inner peripheral edge surface of the main cam
  • the linear cam has a support plate abutting at one surface thereof against the main spring, and first and second projecting guide portions formed integrally pro- drudingly on the other surface of the support plate so as to abut against the first cam face and the second cam face of the main cam, respectively.
  • the main cam has a rotatable lug formed on an outer peripheral surface thereof, and the case folder has an accommodating groove formed on an inner peripheral surface thereof for internally accommodating the rotatable lug of the main cam.
  • the present invention provides a hinge module for portable terminals, comprising: a hollow case housing adapted to be opened at one side thereof; a case folder rotatably mounted to the opened one side of the case housing; a central shaft mounted inside the case housing to pass through the center of the case housing and the case folder; an operation key mounted to the case folder so as to linearly move in the case folder; a rotary cam adapted to rotate by a linear movement of the operation key; a main cam adapted to abut against the rotary cam at one side thereof so as to rotate, the main cam having a cam face formed at the other side thereof; a linear cam adapted to abut against the cam face of the main cam so as to move linearly; and a main spring mounted between the linear cam and the inner wall of the other side of the case housing, wherein the rotary cam and the main cam rotate together with the case folder by a linear movement of the operation key, and the linear cam move linearly along the cam face of the main cam, and
  • the operation key has first sloping protrusions formed protrudingly therefrom in such a fashion as to be inclined at a distal end thereof toward the rotary cam so as to pass through the case folder, and the rotary cam has second sloping protrusions formed protrudingly therefrom so as to abut against the first sloping protrusions.
  • the rotary cam has a stopper formed protrudingly on one surface thereof toward the operation key, and the case folder has a stopper guide slot of an elongated curved shape formed therein for allowing the stopper to slidably move therealong.
  • the hinge module further comprises a plate spring mounted between the main cam and the rotary cam, wherein the plate spring comprises: a curved central portion; a first elastic portion protruded outwardly from a lower portion of one lateral end thereof; a second elastic portion protruded outwardly from an upper portion of the other lateral end thereof, and wherein the first elastic portion is fixedly seated in the rotary cam and the second elastic portion is fixedly seated in the inner cam.
  • the rotary cam has a pair of opposed first sloping sections formed on the other surface thereof toward the outer cam, each first sloping projection being slanted at one lateral face thereof, and the outer cam has a second sloping section formed on one surface thereof so as to correspond to the first sloping sections of the rotary cam, each second sloping section being slanted at one lateral face thereof, and wherein the rotary cam has stop projections formed on the other surface thereof toward the main cam so as to abut against the other lateral faces of the second sloping sections of the outer cam.
  • the linear cam comprises: a support plate abutting at one surface thereof against the main spring: and a pair of opposed guide portions integrally formed protrudingly on the support plate so as to abut against the first cam face and the second cam face, wherein the outer cam has a freestop section extending horizontally circumferentially from a termination point of the first cam to be perpendicular to the movement direction of the linear cam.
  • the outer cam has a rotating projection formed on an outer peripheral surface thereof, and the case folder has a projection guide slit formed on an inner peripheral surface thereof for internally accommodating the rotating projection.
  • the rotary cam has a first seating groove formed thereon to allow the central portion and the first elastic portion of the plate spring to be seated therein, and the inner cam has a second seating groove formed thereon to allow the central portion and the second elastic portion of the plate spring to be seated therein
  • a hinge module for portable terminals has an advantageous effect in that users simply press an operation key to cause a folder to be opened so that even the weak and elderly or the disabled can readily and easily open the fold.
  • FIG. 1 is a perspective view showing the outer appearance of a hinge module according to a first embodiment of the present invention
  • FIG. 2 is a view showing the structure of a hinge module according to the first embodiment of the present invention
  • FIG. 3 is a perspective view showing a case housing according to the first embodiment of the present invention
  • FIG. 4 is a perspective view showing a case folder according to the first embodiment of the present invention
  • FIG. 5 is a perspective view showing an operating key according to the first embodiment of the present invention
  • FIG. 6 is a perspective view showing a fixing guide according to the first embodiment of the present invention
  • FIG. 7 is a perspective view showing a rotary cam according to the first embodiment of the present invention.
  • FIG. 8 is a perspective view showing a main cam according to the first embodiment of the present invention.
  • FIG. 9 is a perspective view showing the assembled state of the main cam the case folder according to the first embodiment of the present invention;
  • FIG. 10 is a perspective view showing a linear cam according to the first embodiment of the present invention.
  • FIGs. 11 to 15 are perspective views showing the operation state of the hinge module according to the first embodiment of the present invention;
  • FIG. 16 is a perspective view showing the outer appearance of a hinge module according to a second embodiment of the present invention; [39] FIG.
  • FIG. 17 is a view showing the structure of a hinge module according to the second embodiment of the present invention.
  • FIG. 18 is a perspective view showing a case housing according to the second embodiment of the present invention.
  • FIG. 19 is a perspective view showing a case folder according to the second embodiment of the present invention.
  • FIG. 20 is a perspective view showing an operating key according to the second embodiment of the present invention.
  • FIG. 21 is a perspective view showing a fixing guide according to the second embodiment of the present invention;
  • FIG. 22 is a perspective view showing a rotary cam according to the second embodiment of the present invention;
  • FIG. 23 is a perspective view showing an outer cam according to the second embodiment of the present invention; [46] FIG.
  • FIG. 24 is a perspective view showing an inner cam according to the second embodiment of the present invention.
  • FIG. 25 is a perspective view showing the assembled state of the outer cam and the inner cam according to the second embodiment of the present invention;
  • FIG. 26 is a perspective view showing a plate spring according to the second embodiment of the present invention;
  • FIG. 27 is a perspective view showing the mounting structure of the plate spring according to the second embodiment of the present invention;
  • FIG. 28 is a perspective view showing a linear cam according to the second embodiment of the present invention.
  • FIGs. 29 to 33 are perspective views showing the operation state of the hinge module according to the second embodiment of the present invention. Best Mode for Carrying Out the Invention
  • FIG. 1 is a perspective view showing the outer appearance of a hinge module according to a first embodiment of the present invention
  • FIG. 2 is a view showing the structure of a hinge module according to the first embodiment of the present invention
  • FIG. 3 is a perspective view showing a case housing according to the first embodiment of the present invention
  • FIG. 4 is a perspective view showing a case folder according to the first embodiment of the present invention
  • FIG. 5 is a perspective view showing an operating key according to the first embodiment of the present invention
  • FIG. 6 is a perspective view showing a fixing guide according to the first embodiment of the present invention
  • FIG. 7 is a perspective view showing a rotary cam according to the first embodiment of the present invention
  • FIG. 8 is a perspective view showing a main cam according to the first embodiment of the present invention
  • FIG. 9 is a perspective view showing the assembled state of the main cam the case folder according to the first embodiment of the present invention
  • FIG. 10 is a perspective view showing a linear cam according to the first embodiment of the present invention.
  • a hinge module of the present invention comprises a case housing 10, a case folder 20, a central shaft 30, an operation key 40, a fixing guide 50, a rotary cam 60, a main cam 70, a coil spring 80, a linear cam 90 and a main spring 35.
  • the case housing 10 as shown in FIGs. 1 to 3, is formed in a hollow shape which is opened at one side thereof.
  • the case folder 20, as shown in FIGs. 1 and 2, is rotatably mounted to the opened one side of the case housing 10.
  • the case folder 20, as shown in FIG. 4, includes a fitting portion 25 fit into the one side of the case housing 10 and a support portion 21 formed integrally with the fitting portion 25 and abut against the one side of the case housing 10.
  • the support portion 21 has a plurality of insertion openings 23 formed therein for inserting the operation key 40 thereto and a stopper guide slot 24 having an elongated curved shape formed therein for allowing a stopper 64 formed at the rotary cam 60, which will be described later, to slidably move therealong.
  • the fitting portion 25 has an accommodating groove 28 formed on an inner peripheral surface thereof for internally accommodating a rotatable lug 78 formed on an outer peripheral surface of the main cam 70.
  • the central shaft 30 is mounted to pass through the center of the case housing 10 and the case folder 20, and constituent elements which will be described later are mounted relative to the central shaft 30.
  • the central shaft 30 is coupled at one side thereof to a washer 32 and is formed at the other side thereof with a holding portion 34 for holding an elastic spring 47 mounted inside the operation key 40.
  • the operation key 40 as shown in FIGs. 1 and 2, is mounted to linearly move in the case folder 20.
  • the operation key 40 as shown in FIGs.
  • each of the first sloping protrusions 42 is formed to be slanted at a distal end surface thereof toward the rotary cam 60, and each the support protrusions 44 is formed to be outwardly bent at a distal end thereof.
  • the first sloping protrusions 42 abut against a pair of opposed second sloping protrusions 62 of the rotary cam 60 which will be described later, and the support protrusions 44 serve to prevent the operation key 40 from escaping from the case folder 20.
  • the first sloping protrusions 42 and the support protrusions 44 are mounted to the case folder 20 so as to pass through the case folder 20 so that the operation key 40 can be prevented from shaken.
  • the fixing guide 50 as shown in FIGs. 1 and 2, serves to securely fix the operation key 40 to the case folder 20.
  • the fixing guide 50 as shown in FIG.
  • the cover portion 51 includes a cover portion 51 formed centrally with a through-hole 52 and fixing portions 55 formed to be bent at both sides of the cover portion 51.
  • the operation key 40 is penetratingly inserted into the through-hole 52 of the cover portion 51, and the fixing portion 55 is formed with the insertion openings 56 so that fixing lugs 22 formed at both sides of the case folder 20 are inserted into the insertion openings 56 to cause the fixing guide 50 to be securely coupled to the case folder 20.
  • the inner diameter of the through-hole 52 formed at the center of the cover portion 51 must be set to be equal to or slightly larger than the outer diameter of the operation key 40 such that the support protrusion 44 cannot pass through the through-hole 52.
  • the rotary cam 60 is disposed between the operation key 40 and the main cam 70 so as to rotate by a linear movement of the operation key 40.
  • the rotary cam 60 has a pair of opposed second sloping protrusions 62 formed protrudingly on one surface thereof toward the operation key 40 in such a fashion that each of the second sloping protrusions is slanted at a distal end surface thereof so as to correspond to the first sloping protrusions 42 of the operation key 40.
  • the rotary cam 60 has a stopper 64 formed protrudingly on one surface thereof toward the operation key 40 so that the stopper 64 is slidably inserted into the stopper guide slot 24 formed inside the case folder 20. [78] Thus, when the rotary cam 60 rotates, the stopper 64 is slidably moved in the stopper guide slot 24.
  • the rotary cam 60 has a pair of opposed first sloping sections 66 formed protrudingly on the other surface thereof toward the main cam 70 in such a fashion as to abut at one lateral faces thereof against one lateral faces of a pair of opposed second sloping sections 76 of the main cam 70 which will be described later.
  • Each of the first sloping sections 66 is slanted at one lateral face thereof and is formed uprightly at the other face thereof.
  • the rotary cam 60 has a pair of opposed stop projections 68 formed on the other surface thereof toward the main cam 70 in such a fashion as to be alternately arranged with the opposed first sloping sections 66.
  • the main cam 70 as shown in FIG. 2, is disposed between the rotary cam 60 and the linear cam 90 so as to rotate together with the rotary cam 60.
  • the main cam 70 as shown in FIGs. 2 and 8, has the pair of opposed second sloping sections 76 formed on one surface thereof to abut against the opposed first sloping sections 66 of the rotary cam 60, and has a cam face formed on the other surface thereof to abut against the linear cam 90.
  • the second sloping sections 76 abut at the one sloping lateral faces thereof against the one sloping lateral faces of the first sloping sections 66, and abut at the other non- sloping lateral faces against the stop projections 68 when the main cam 70 is coupled to the rotary cam 60.
  • the cam face of the main cam 70 has a first cam face 72 formed along an outer peripheral edge surface of the main cam 70 and a second cam face 74 formed along an inner peripheral edge surface of the main cam 70.
  • the first cam face 72 and the second cam face 74 have a phase difference of 180 degrees.
  • the main cam 70 has a rotatable lug 78 formed on an outer peripheral surface thereof so as to be accommodated in the accommodating groove 28 formed on an inner peripheral surface of the case folder 20 as shown in FIG. 9. [89] Thus, when the main cam 70 rotates, the case folder 20 rotates together with the main cam 70 by the engagement of the rotatable lug 78 and the accommodating groove
  • a coil spring 80 is interposed between the main cam 70 and the rotary cam 60, and the coil spring 80 is supported at both ends thereof by the main cam 70 and the rotary cam 60.
  • the main cam 70 and the rotary cam 60 are formed with fixing pieces
  • the linear cam 90 is disposed between the main cam 70 and the main spring 35 so as to be linearly moved.
  • the linear cam 90 has a support plate 91 abutting at one surface thereof against the main spring 35, and first and second projecting guide portions 92 and 94 formed integrally protrudingly on the other surface of the support plate so as to abut against the first cam face 72 and the second cam face 74 of the main cam 70, respectively.
  • the first projecting guide portion 92 and the second projecting guide portion 94 abut against the first cam face 72 and the second cam face 74, respectively, so as to slide against the first cam face 72 and the second cam face 74.
  • the main spring 35 is positioned between the linear cam 90 and the inner wall of the other side of the case housing 10 so as to impart an elastic force.
  • the main spring 35 is mounted in a state of being compressed.
  • FIG. 11 shows an initial state prior to depression of the operation key 40
  • FIG. 12 shows a state where the operation key 40 is depressed
  • FIG. 13 shows a state where the main cam 70 is coupled to the rotary cam 60
  • FIG. 14 shows a state where the linear cam 90 moves to cause the case folder 20 to rotate by 90 degrees
  • FIG. 15 shows a state where the case folder 20 has rotated completely.
  • the second sloping sections 76 of the main cam 70 are put on the top surface of the first sloping sections 66 of the rotary cam 60, and the linear cam 90 is positioned on the top surface of the main cam 70, on which the cam face is not formed, by being applied with the elastic force of the main spring 35.
  • the first sloping protrusions 42 of the operation key 40 moves linearly toward the rotary cam 60 to cause the sloping faces of the first sloping protrusions 42 of the operation key 40 to push against the sloping faces of the second sloping protrusions 62 of the rotary cam 60 so as to rotate the rotary cam 60.
  • first sloping sections 66 of the rotary cam 60 is also rotated by the rotation of the rotary cam 60 so that the top of the first sloping sections 66 and the bottom of second sloping sections 76 are not in contact with each other instantaneously.
  • the rotation of the main cam 70 also rotates the case folder 20 in which the rotatable lug 78 of the main cam 70 and the accommodating groove 28 are engaged with each other, and the other lateral faces of the second sloping sections abut against the stop projections 68 of the rotary cam 60 so as to rotate the rotary cam 60 together.
  • the rotary cam 60 tries to rotate in an opposite direction to the compressed direction thereof by means of the elastic restoring force of the coil spring 80 compressed, but the main cam 70 supporting one side of the coil spring 80 is also rotated together with the rotary cam 60 so that the coil spring 80 still is in a state of not being extended.
  • FIG. 11 The state of FIG. 11 where the folder portion of the cellular phone is not opened is compared with the state of FIG. 15 where the folder portion is completely opened. It can be seen from FIG. 15 that the main spring 35 is extended to cause the first projecting guide portion 92 and the second projecting guide portion 94 of the linear cam 90 to be slidably moved to the termination ends of the first cam face 72 and the second cam face 74 of the main cam 70.
  • the hinge module for portable terminals of the present invention enables users to simply depress the operation key 40 to cause a folder to be automatically opened from a main body of the portable terminal so that anyone can readily and easily open the folder.
  • FIG. 16 is a perspective view showing the outer appearance of a hinge module according to a second embodiment of the present invention
  • FIG. 17 is a view showing the structure of a hinge module according to the second embodiment of the present invention
  • FIG. 18 is a perspective view showing a case housing according to the second embodiment of the present invention
  • FIG. 19 is a perspective view showing a case folder according to the second embodiment of the present invention
  • FIG. 20 is a perspective view showing an operating key according to the second embodiment of the present invention
  • FIG. 21 is a perspective view showing a fixing guide according to the second embodiment of the present invention
  • FIG. 22 is a perspective view showing a rotary cam according to the second embodiment of the present invention
  • FIG. 23 is a perspective view showing an outer cam according to the second embodiment of the present invention
  • FIG. 24 is a perspective view showing an inner cam according to the second embodiment of the present invention
  • FIG. 25 is a perspective view showing the assembled state of the outer cam and the inner cam according to the second embodiment of the present invention
  • FIG. 26 is a perspective view showing a plate spring according to the second embodiment of the present invention
  • FIG. 27 is a perspective view showing the mounting structure of the plate spring according to the second embodiment of the present invention
  • FIG. 28 is a perspective view showing a linear cam according to the second embodiment of the present invention. [121] As shown in FIGs.
  • the hinge module of the present invention comprises a case housing 110, a case folder 120, a central shaft 130, an operation key 140, a fixing guide 150, a rotary cam 160, a main cam, a plate spring 115, a linear cam 190 and a main spring 135.
  • the case housing 110 as shown in FIGs. 16 to 18, is formed in a hollow shape which is opened at one side thereof.
  • the case folder 120 as shown in FIGs. 16 and 17, is rotatably mounted to the opened one side of the case housing 110.
  • the case folder 120 as shown in FIG.
  • the fitting portion 125 includes a fitting portion 125 fit into the one side of the case housing 110 and a support portion 121 formed integrally with the fitting portion 125 and abut against the one side of the case housing 110.
  • the support portion 121 has a plurality of insertion openings 23 formed therein for inserting the operation key 140 thereto and a stopper guide slot 124 having an elongated curved shape formed therein for allowing a stopper 164 formed at the rotary cam 160, which will be described later, to slidably move therealong.
  • the fitting portion 125 has a projection guide slit 128 formed on an inner peripheral surface thereof for internally accommodating a rotating projection 178 formed on an outer peripheral surface of an outer cam 170 of the main cam.
  • the central shaft 130 is mounted to pass through the center of the case housing 110 and the case folder 120, and constituent elements which will be described later are mounted relative to the central shaft 130. [128] The central shaft 130 is coupled at one side thereof to a washer 132 and is formed at the other side thereof with a holding portion 134 for holding an elastic spring 147 mounted inside the operation key 140. [129] The operation key 40, as shown in FIGs. 16 and 17, is mounted to the case folder
  • the operation key 140 is formed with a pair of opposed first sloping protrusions 142 and a pair of opposed support protrusions 144 so as to pass through the plurality of insertion openings 123 formed in the case folder 120 toward the inside of the case folder 120.
  • Each of the first sloping protrusions 142 is formed to be slanted at a distal end surface thereof toward the rotary cam 160, and each the support protrusions 144 is formed to be outwardly bent at a distal end thereof.
  • the first sloping protrusions 142 abut against a pair of opposed second sloping protrusions 162 of the rotary cam 160 which will be described later, and the support protrusions 144 serve to prevent the operation key 140 from escaping from the case folder 120.
  • the first sloping protrusions 142 and the support protrusions 144 are mounted to the case folder 120 so as to pass through the case folder 120 so that the operation key
  • the fixing guide 150 serves to securely fix the operation key 140 to the case folder 120.
  • the fixing guide 150 includes a cover portion 151 formed centrally with a through-hole 152 and fixing portions 55 formed to be bent at both sides of the cover portion 151.
  • the operation key 140 is penetratingly inserted into the through-hole 152 of the cover portion 151, and the fixing portion 155 is formed with the insertion openings 156 so that fixing lugs 122 formed at both sides of the case folder 120 are inserted into the insertion openings 156 to cause the fixing guide 150 to be securely coupled to the case folder 120.
  • the inner diameter of the through-hole 152 formed at the center of the cover portion 151 must be set to be equal to or slightly larger than the outer diameter of the operation key 140 such that the support protrusion 144 cannot pass through the through-hole 152.
  • the support protrusion 144 of the operation key 140 is prevented from passing through the through-hole 152 of the cover portion 151 so that the fixing guide 150 allows the operation key 140 to be securely fixed to the case folder 120.
  • An elastic spring 147 is interposed between the operation key 140 and the central shaft 130 so as to impart an elastic force to the operation key 140.
  • the rotary cam 160 as shown in FIG. 17, is disposed between the operation key
  • the rotary cam 160 has a pair of opposed second sloping protrusions 162 formed protrudingly on one surface thereof toward the operation key 140 in such a fashion that each of the second sloping protrusions is slanted at a distal end surface thereof so as to correspond to the first sloping protrusions 142 of the operation key 140.
  • the sloping faces of the first sloping protrusions 142 and the sloping faces of the second sloping protrusions 162 abut against each other.
  • the first sloping protrusions 142 forcibly push the second sloping protrusions
  • the rotary cam 160 has a stopper 164 formed protrudingly on the one surface thereof toward the operation key 140 so that the stopper 164 is slidably inserted into the stopper guide slot 124 formed inside the case folder 120. [145] Thus, when the rotary cam 160 rotates, the stopper 164 is slidably moved in the stopper guide slot 124.
  • the rotary cam 160 has a pair of opposed first sloping sections 166 formed on the other surface thereof toward the main cam 170 in such a fashion as to abut at one lateral faces thereof against one lateral face of a second sloping section 176 of the outer cam 170 of the main cam which will be described later.
  • Each of the first sloping sections 166 is slanted at one lateral face thereof and is formed uprightly at the other face thereof.
  • the rotary cam 160 has a pair of opposed stop projections 168 formed on the other surface thereof toward the main cam in such a fashion as to be alternately arranged with the opposed first sloping sections 166.
  • the main cam as shown in FIG. 17, is disposed between the rotary cam 160 and the linear cam 190 so as to rotate together with the rotary cam 160.
  • the main cam includes an inner cam 180 which abuts against the rotary cam 160 at one side thereof and has a second cam face 182 formed at the other side thereof, and an outer cam 170 which is slidably fit around the inner cam 180 while surrounding the inner cam 180.
  • the outer cam 170 abuts against the rotary cam 160 at one side thereof and has a first cam face 172 formed at the other side thereof.
  • the outer cam 170 as shown in FIGs. 17 and 23, is formed in a hollow cylindrical shap, has the second sloping section 176 formed on one side thereof to abut against the first sloping sections 166 of the rotary cam 160, and has a first cam face 172 formed on the other side thereof to abut against the linear cam 190.
  • the second sloping section 176 abuts at the one sloping lateral face thereof against the one sloping lateral faces of the first sloping sections 166, and abuts at the other non-sloping lateral face against the stop projections 168 when the outer cam 170 is coupled to the rotary cam 160.
  • the second cam face 182 consists of two sections having a phase difference of 180 degrees.
  • the outer cam 170 has a freestop section 174 extending horizontally circum- ferentially from a termination point of the first cam 172 to be perpendicular to the movement direction of the linear cam 190.
  • the second cam face 182 is formed slantly but has the freestop section 174 of a linear shape formed in the middle portion thereof.
  • the outer cam 170 has a rotating projection 178 formed on an outer peripheral surface thereof so as to be insertedly accommodated in the projection guide slit 128 of the case folder 120.
  • the case folder 20 rotates together with the outer cam 170 by the slidable engagement between the rotating projection 178 and the projection guide slit 128.
  • the inner cam 180 as shown in FIGs. 17 and 24, has a second cam face 182 formed at the other side thereof to abut against the linear cam 190.
  • the shape of the second cam face 182 is contoured to match the shape of the remaining face of the first cam face 172 from which the freestop section 174 is excluded.
  • a guide portions 192 of the linear cam 190 which will be descried later, abuts against the first cam face 172 and the second cam face 182 simultaneously.
  • the outer cam 170 in order for the outer cam 170 to be slidably fit around the inner cam
  • the outer cam 170 has sliding lugs 175 formed on the inner peripheral surface thereof
  • the inner cam 180 has a pair opposed sliding grooves 185 formed on the outer peripheral surface thereof so as to allow the sliding lugs to be slidably moved therealong.
  • the outer cam 170 and the inner cam 180 are assembled by slidably fitting the sliding lugs 175 into the sliding grooves 185 to thereby form the main cam.
  • a plate spring 115 is mounted between the main cam and the rotary cam
  • the plate spring 115 includes a curved central portion 116, a first elastic portion
  • the plate spring 115 is insertedly fixed between the rotary cam 160 and the inner cam 180.
  • the rotary cam 160 has a first seating groove 169 formed thereon to allow the plate spring to be seated therein as shown in FIG. 22, and the inner cam 180 has a second seating groove 189 formed thereon to allow the plate spring to be seated therein as shown in FIGs. 24 and 25.
  • D 27(a) shows a state where the plate spring 115 is insertedly fixed in the first seating groove 169 of the rotary cam 160. In this case, the central portion 116 and the first elastic portion 117 are fixedly seated in the first seating groove 169 of the rotary cam 160 and the second elastic portion 118 remains in a free state.
  • FIG. 27 (b) shows a state where the plate spring 115 is insertedly fixed in the second seating groove 189 of the inner cam 180. In this case, the central portion 116 and the second elastic portion 118 are fixedly seated in the second seating groove 189 of the inner cam 180 and the first elastic portion 117 remains in a free state.
  • the linear cam 190 is disposed between the outer cam 170 and the main spring 135 so as to move linearly.
  • the linear cam 190 includes a support plate 191 abutting against the main spring 135, and a pair of opposed guide portions 192 integrally formed protrudingly on the support plate 191 so as to abut against the first cam face 172 and the second cam face 182.
  • the guide portions 192 is formed in a shape conforming to that of the first cam face
  • the guide portions 192 is formed in pairs so that these respective guide portions 192 slide against the first cam face 172 and the second cam face 182 while abutting against the first cam face 172 and the second cam face 182.
  • the main spring 135 is mounted between the linear cam 190 and the inner wall of the other side of the case housing 110 to impart an elastic force to the linear cam 190.
  • the main spring 135 is mounted between the linear cam 190 and the case housing 110 in a state of being compressed.
  • FIG. 29 shows an initial state prior to depression of the operation key 140
  • FIG. 30 shows a state where the operation key 40 is depressed
  • FIG. 31 shows a state where the outer cam 170 is coupled to the rotary cam 160
  • FIG. 32 shows a state where the linear cam 190 moves to the freestop section 174 of the outer cam 170
  • FIG. 33 shows a state where the case folder 20 has rotated completely.
  • the first sloping protrusions 142 of the operation key 140 are spaced apart from the second sloping protrusions 162 of the rotary cam 160 by means of the elastic force of the elastic spring 147.
  • the second sloping sections 176 of the outer cam 170 are put on the top surface of the first sloping sections 166 of the rotary cam 60, and the guide portions 192 of the linear cam 190 is positioned on the top surface of the outer cam 170, on which the first cam face 170 is not formed, by being applied with the elastic force of the main spring 135.
  • the first elastic portion 117 inserted into the rotary cam 160 is bent by the rotation of the rotary cam 160 to thereby compress the plate spring 115.
  • first sloping sections 166 of the rotary cam 160 is also rotated by the rotation of the rotary cam 160 so that the top of the first sloping sections 166 and the bottom of the second sloping sections 176 are not in contact with each other instantaneously as shown FIG. 30.
  • the operation key 140 is returned to its original position by means of the elastic restoring force of the elastic spring 147 to cause the second sloping protrusions 162 of the rotary cam 160 to be spaced apart from the first sloping protrusions 142.
  • the guide portions 192 of the linear cam 190 naturally pass by the freestop section 174 by means of an elastic force of the main spring 135 and an inertia force acting along the first cam face 172 and the second cam face 182, and are slidably moved to termination points of the first cam face 172 and the second cam face 182 as shown in FIG. 33 to cause the inner cam 180 and the outer cam 170 to rotate at about 165 degrees.
  • a rotational force of the outer cam 170 by an elastic force of the plate spring 115 and a rotational force of the outer cam 170 by the main spring 135 and the linear cam 190 are offset to cause the case folder 120 to be maintained on the freestop section 174 of the outer cam 170 at about 90 degrees without rotating to thereby open the folder portion of the cellular phone.
  • users can selectively open the folder portion of the cellular phone at 165 degrees or 90 degrees so as to be opened completely or partially, thereby enabling the users to view a display unit mounted on the folder portion of the cellular phone at various angles.
  • the folder portion of the cellular phone may be coupled to either the case folder 120 or the case housing 110.
  • the folder portion of the cellular phone is automatically opened so that even the weak and elderly or the disabled can readily and easily open the folder portion of the cellular phone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Telephone Set Structure (AREA)

Abstract

L'invention porte sur une charnière de terminal portable comprenant: un logement creux s'ouvrant d'un côté; un fourreau de boîtier monté tournant sur le côté ouvert du logement du boîtier; un axe central monté à l'intérieur du logement du boîtier et passant par le centre du logement du boîtier et du fourreau du boîtier; une touche de fonctionnement fixée au fourreau du boîtier et s'y déplaçant linéairement; un guide de fixation de la touche de fonctionnement au fourreau du boîtier; une came tournant sous l'effet linéaire de la touche de fonctionnement; une came principale butant sur un côté de la came tournante pour la faire tourner, la came principale présentant une face formée sur son autre côté; une came linéaire butant contre la face de la came principale pour la déplacer linéairement; et un ressort principal monté entre la came linéaire et la paroi intérieure de l'autre côté du logement du boîtier. Lorsque l'utilisateur presse la touche de fonctionnement, le fourreau du téléphone cellulaire s'ouvre automatiquement.
PCT/KR2007/004501 2006-09-18 2007-09-18 Charnière de terminal portable WO2008035895A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2006-0089930 2006-09-18
KR1020060089930A KR100756914B1 (ko) 2006-09-18 2006-09-18 휴대폰 단말기용 힌지모듈
KR1020060090907A KR100777226B1 (ko) 2006-09-20 2006-09-20 휴대폰 단말기용 힌지모듈
KR10-2006-0090907 2006-09-20

Publications (1)

Publication Number Publication Date
WO2008035895A1 true WO2008035895A1 (fr) 2008-03-27

Family

ID=39200691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2007/004501 WO2008035895A1 (fr) 2006-09-18 2007-09-18 Charnière de terminal portable

Country Status (1)

Country Link
WO (1) WO2008035895A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200330255Y1 (ko) * 2003-07-23 2003-10-17 에스프라전자 주식회사 폴더형 단말기의 커버 개폐장치
US20040074049A1 (en) * 2001-03-22 2004-04-22 Masanobu Kawamoto Hinge structure incorporated with a rotary actuator
US20040181909A1 (en) * 2003-03-05 2004-09-23 Nifco Inc. Hinge unit and hinge structure using the same
US20060005353A1 (en) * 2003-01-31 2006-01-12 Kabushiki Kaisha Strawberry Corporation Hinge device and electronic device using hinge device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040074049A1 (en) * 2001-03-22 2004-04-22 Masanobu Kawamoto Hinge structure incorporated with a rotary actuator
US20060005353A1 (en) * 2003-01-31 2006-01-12 Kabushiki Kaisha Strawberry Corporation Hinge device and electronic device using hinge device
US20040181909A1 (en) * 2003-03-05 2004-09-23 Nifco Inc. Hinge unit and hinge structure using the same
KR200330255Y1 (ko) * 2003-07-23 2003-10-17 에스프라전자 주식회사 폴더형 단말기의 커버 개폐장치

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