WO2008147041A1

WO2008147041A1 - Apparatus for closing and opening camera door in mobile

Info

Publication number: WO2008147041A1
Application number: PCT/KR2008/002096
Authority: WO
Inventors: Dong-Rack Lee
Original assignee: Dong In High Technology. Co., Ltd.
Priority date: 2007-05-25
Filing date: 2008-04-14
Publication date: 2008-12-04
Also published as: JP2010528523A

Abstract

Disclosed is an apparatus for closing and opening a camera door, more particularly, to an apparatus for closing and opening the camera door in the mobile phone capable of automatically closing and opening a camera mounted on a mobile phone. The present invention comprises; a base disposed on a front of a lens; a driving part mounted on the base; a blade mounted to rotate on the base so as to close and open the opening; and a middle plate mounted to rotate on the upper or lower of the blade, wherein the middle plate is rotated by operating the driving part, and the blade is rotated by rotating the middle plate to close and open the opening, and the driving part rotates the middle plate by a magnetic force. Furthermore, the present invention comprises a base including an opening and disposed on the front of a lens with an opening; and a blade mounted to rotate on the base so as to close and open the opening, wherein a magnet is mounted on the blade.

Description

APPARATUS FOR CLOSING AND OPENING CAMERA DOOR

IN MOBILE

Technical Field

[1] The present invention relates to an apparatus for closing and opening camera door in mobile, more particularly, to an apparatus for closing and opening the camera door in the mobile phone capable of automatically closing and opening the camera mounted on the mobile phone. Background Art

[2] As photography and digital technology have developed, a cellular phone or a PDA with a camera device has appeared. The camera device makes an image which is imaged through a lens into an electric signal by using a color capture device, and converts the image into digital data to save.

[3] The camera device is mounted on the back, front or lateral face of the mobile phone or the PDA to enter light through the lens.

[4] Initially, the mobile phone or the PDA mostly includes an exposed lens on outside. In this case, the lens was damaged or the quality of the image was extremely degraded, as dust or rubbish covers a surface of the lens.

[5] As a result, the PDA or the mobile phone with a camera door is developed.

[6] At this time, two methods of closing and opening the door of the camera were proposed: one is the method of mechanical cameras closed and opened by mechanically interlocking according to users' operation, and the other is the method of au tomatic cameras closed and opened by automatically operating according to specific conditions.

[7] As an example of an apparatus for automatically closing and opening the door,

'CAMERA DOOR OPENING AND SHUTTING APPARATUS FOR FOLDER TYPE MOBILE PHONE' in Korean published Patent Application No. 2004-102482, and 'CAMERA DOOR OPENING AND SHUTTING APPARATUS FOR FOLDER TYPE MOBILE PHONE' in Korean Published Patent Application No. 2004-102483 are disclosed.

[8] The Patent Application No. 2004-102482 intends to automatically open and close a camera door composing one blade by using a solenoid, and the Patent Application No. 2004-102483 intends to automatically open and close a camera door comprising two blades by using a drive motor.

[9] However, in case of the Patent Application No. 2004-102482, a problem in using space is caused as the apparatus is opened and closed by the camera door comprising one blade, so wider space for moving the blade is requested. In case of the Patent Application No. 2004-102483, the space occupied by a motor is needed as the motor is used to move the door, and the motor makes lots of noise and there are frequent mechanical troubles.

[10] Additionally, when the camera door is closed by using the blade, the dust or the rubbish covers the surface of the lens, as the blade is not completely closed due to space made of little different lengths between parts.

[H]

Disclosure of Invention Technical Problem

[12] To solve the above mentioned problems of the prior art, this invention intends to provide an apparatus for closing and opening a camera door in a mobile phone capable of automatically and smoothly closing and opening the camera door, and perfectly closing the door by a blade. Technical Solution

[13] In order to accomplish the above objects, the present

[14] invention comprises; a base disposed on a front of a lens with an opening; a driving part mounted on the base; a blade mounted to rotate on the base so as to close and open the opening; and a middle plate mounted to rotate on the upper or lower of the blade, wherein the middle plate is rotated by operating the driving part, and the blade is rotated by rotating the middle plate to close and open the opening, and the driving part rotates the middle plate by a magnetic force.

[15] The driving part includes power transfer axis which rotates is mounted on an eccentric location of the base against the opening. And the middle plate includes a power transfer long hole in form of a circular arc is formed.

[16] The power transfer axis is inserted into the power transfer long hole, so as to rotate centered on the opening by rotating the power transfer axis.

[17] When the blade comprise a plurality of blades, a guide protrusion is formed on each blade in an upper direction, and the middle plate includes a guide long hole in a form of the circular arc into which the guide protrusion is inserted and slid, so as to rotate the blades by rotating the middle plate.

[18] A magnet is mounted on the blade.

[19] Otherwise, a magnet is mounted on either the blade or the base, and a magnet or a magnet substance contacted to the magnet is mounted on the other.

[20] In order to accomplish the above objects, another apparatus for closing and opening the camera door in mobile phone comprises: a base including an opening and disposed on the front of a lens; and a blade mounted to rotate on the base so as to close and open the opening, wherein a magnet is mounted on the blade.

[21] The blade comprises the plurality of blades to open and close the opening by mutually contacting both faces of the blades, wherein a magnet is mounted on at least one of the plurality of the blades.

[22] The magnet is mounted on the mutual contacting side of the blades.

[23] Furthermore, in order to accomplish the above objects, the other apparatus for closing and opening the camera door in mobile phone comprises: a base including an opening and disposed on the front of a lens; and a blade mounted to rotate on the base to close and open the opening, wherein a magnet is mounted on either the blade or the base, and a magnet or a magnetic substance contacted with the magnet is mounted on the other.

Advantageous Effects

[24] According to the above mentioned apparatus for closing and opening the camera door in the mobile phone of the present invention, the following effects can be obtained. [25] First, an opening is automatically and smoothly by a driving part driven by magnetism. [26] Additionally, a first and a second blade can be closed and opened smoothly at the same time by rotating a middle plate. [27] Second, the opening is perfectly closed by mounting a magnet on a blade, so rubbish such as the dust can be perfectly prevented from flowing through the opening. [28]

Brief Description of the Drawings [29] Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings in which: [30] Fig. 1 is an exploded perspective view of an apparatus for closing and opening a camera door in a mobile phone according to a first embodiment of the present invention. [31] Fig. 2 is a perspective view showing a closed state of the apparatus for closing and opening the camera door in the mobile phone according to the first embodiment of the present invention.

[32] Fig. 3 is a plane view of Fig. 2.

[33] Fig. 4 is a perspective view showing an opened state of the apparatus for closing and opening the camera door in the mobile phone according to the first embodiment of the present invention. [34] Fig. 5 is a plane view of Fig. 4. [35] Fig. 6 is a structure view of the apparatus for closing and opening the camera door in the mobile phone according to a second embodiment of the present invention.

[36] Fig. 7 is a structure view of the apparatus for closing and opening the camera door in the mobile phone according to a third embodiment of the present invention.

[37] ** Description of reference numbers in the drawings **

[38] 10: a driving part 11: a coil

[39] 12: a yoke 13: a magnet

[40] 14: a power transfer axis 20: a base

[41] 25: an opening 28: a magnet

[42] 31 : a first blade 32: a second blade

[43] 33: a guide protrusion 35: a magnet

[44] 37,38: magnetic substances 40: a middle plate

[45] 43: a guide long hole 44: a power transfer long hole

[46] 50: a cover

[47]

Mode for the Invention

[48] The first embodiment

[49] Fig. 1 is an exploded perspective view of an apparatus for closing and opening a camera door in a mobile phone according to a first embodiment of the present invention, Fig. 2 is a perspective view showing a closed state of the apparatus for closing and opening the camera door in the mobile phone according to the first embodiment of the present invention, Fig. 3 is a plane view of Fig. 2, Fig. 4 is a perspective view showing an opened state of the apparatus for closing and opening the camera door in the mobile phone according to the first embodiment of the present invention, and Fig. 5 is a plane view of Fig. 4.

[50] An apparatus for closing and opening the camera door in the mobile phone of the present invention intends to close and open a camera lens in mobile phone as shown in Figs. 1 to 5, and comprises: a base 20, a driving part 10, blades 31,32, a middle plate 40 and a cover 50.

[51] The base 20 is disposed on the front of the camera lens, and an opening 25, which is shaped like a circle, is formed in the center of the base 20.

[52] The driving part 10 operates an apparatus for opening and closing by means of a driving power, and the driving part 10 is mounted on the base 20, more specifically, mounted on an eccentric location against the opening 25.

[53] As shown in Fig. 1, the driving part 10 comprises a coil 11, a yoke 12, a magnet 13 and a power transfer axis 14, wherein the power transfer axis 14 is rotated in a circular motion by a magnetic force when the power is supplied to the coil 11. [54] More specifically, the power transfer axis 14 is rotated by an interaction between an electromagnetic force generated from the coil 11 and the magnet 13 when the power is supplied to the coil 11. [55] At this time, as the power transfer axis 14 is mounted not in the center but in an eccentric location of the magnet 13, the power transfer axis 14 is not center in rotation but it is rotated in a concentric circle with the magnet 13 when the magnet 13 is rotated. [56] The blades operate to open and close the opening 25, and the blades are hinged to rotate on the base so as to mount. [57] The blades comprise a first blade 31 and a second blade 32 which are hinged to rotate on the base 20 respectively, wherein the first blade 31 and the second blade 32 are mounted mutually in the opposite direction centered on the opening 25. [58] The first blade 31 and the second blade 32 are roughly formed into a semicircle respectively, and are contacted each other to be formed into a circle so as to close the opening 25. [59] A guide protrusion 33 protrudes in the upper direction on each upper part of the first blade 31 and the second blade 32.

[60] The middle plate 40 is mounted on the upper or lower of the blades.

[61] The middle plate 40 is disposed on the upper of the blades in the present embodiment, but the middle plate is also able to be disposed between the lower of the blades and the base 20. [62] The middle plate 40 is rotated by operating the driving part 10, and rotates the blades again, so as to play a role as a member of transmitting a dynamic force to open and close the opening 25. [63] For this, power transfer long hole 44 in the form of a circular arc is formed on the middle plate 40, and the power transfer axis 14 of the driving part 10 is inserted into the power transfer long hole 44. [64] At this time, the power transfer long hole 44 shaped like the circular arc is formed in a different direction from the direction of the rotation of the power transfer axis 14, preferably as shown in Figs. 3 and 5, the directions of the rotation between the power transfer long hole 44 and the power transfer axis 14 are formed to be perpendicular to each other. [65] Furthermore, a guide long hole 43 shaped like the circular arc to insert the guide protrusion 33 is separately formed from the power transfer long hole 44 on the middle plate 40. [66] The shape of the guide long hole 43 is approximately similar to the shape of the power transfer long hole 44. [67] Therefore, when the power transfer axis 14 is rotated in a circle by operating the driving part 10, which is mounted on an eccentric location of the base 20 against the opening 25, as shown in Figs. 4 and 5, the power transfer axis 14 is slid along to the power transfer long hole 44, and the middle plate 40 having the power transfer long hole 44 is rotated centered on the opening 25. [68] At this time, when the power transfer axis 14 is rotated, the power transfer axis 14 rotates the middle plate 40 while being moved along the power transfer long hole 44, as the direction of the rotation of the power transfer axis 14 and the circular shape of the power transfer long hole 44 are oppositely formed each other. [69] The guide long hole 43 is also rotated by rotating the middle plate 40, and the guide protrusion 33 of the blades has already been inserted to the guide long hole 43, so the guide protrusion 33 is slid along the guide long hole 43. [70] As the guide long hole 43 is formed shaped like the circular arc, the guide protrusion

33 moves from the inside to the outside along the guide long hole 43. [71] Therefore, as shown in Figs. 4 and 5, the first blade 31 and the second blade 32 are rotated in centered on the hinged part on the base 20 to open the opening 25. [72] The cover is mounted on the upper of the middle plate 40 to prevent the apparatus for closing and opening the camera door from entering dusts and so on. [73] The present invention based on the above mentioned constitution will operate like as below. [74] The power transfer axis 14 is rotated in making a circle when the power is applied to the driving part 10. [75] The middle plate 40 is rotated, as the power transfer axis 14 is slid and rotated in the power transfer long hole 44. [76] The guide protrusion 33 which is inserted into the guide long hole 43 by rotation of the middle plate 40 is slid along the guide long hole 43, so the first blade 31 and the second blade 32 are rotated in centered on a hinge point with the base 20 to close and open the opening 25. [77]

[78] The second embodiment

[79] Fig. 6 is a structure view of the apparatus for closing and opening the camera door in the mobile phone according to the second embodiment of the present invention. [80] When being compared with a first embodiment, the second embodiment only has different blades, so only this point will be mainly explained and the explanation regarding other elements will be omitted. [81] As shown in Fig. 6, a magnet 35 is mounted on either the first blade 31 or the second blade 32, and a magnetic substance 37 like a metal supporting frame which contacts to the magnet 35 is mounted on the other. [82] Therefore, the first blade 31 and the second blade 32 are closely adhered mutually by a magnetic force so that the opening 25 is completely opened. [83] That is, to close the opening 25, the magnet 35 and the magnetic substance 37 are mounted on both contacting surface of the first blade 31 and the second blade 32, so that the first blade 31 and the second blade 32 can be more completely closed by the magnetic force which is generated by the magnet 35. [84] Otherwise, the magnet 35 can be mounted on both the first blade 31 and the second blade 32. [85] The present invention based on the above mentioned constitution will operate like as below. [86] The power transfer axis 14 is rotated in making a circle when the power is applied to the driving part 10. [87] The middle plate 40 is rotated, as the power transfer axis 14 is slid and rotated in the power transfer long hole 44. [88] The guide protrusion 33 which is inserted into the guide long hole 43 by rotation of the middle plate 40 is slid along the guide long hole 43, so the first blade 31 and the second blade 32 are rotated centered on a hinge point on the base 20 to close and open the opening 25. [89] To close the opening 25, when the first blade 31 and the second blade 32 are narrowly located up to a certain point, the first blade 31 and the second blade 32 are completely adhered by the magnet 35 and the magnetic substance 37 mounted on the first blade 31 or the second blade 32 so that the opening 25 is perfectly closed, and dust and so on through the opening 25 can be perfectly prevented. [90]

[91] The third embodiment

[92] Fig. 7 is a structure view of the apparatus for closing and opening the camera door in the mobile phone according to a third embodiment of the present invention. [93] When being compared with the first embodiment and the second embodiment, the third embodiment only has different blades, so only this point will be mainly explained and the explanation regarding other elements will be omitted. [94] As shown in Fig. 7, a magnetic substance 38 is mounted on the first blade 31 and the second blade 32 and the magnet 28 is mounted on near the base 20 where is contacted when the first blade 31 and the second blade 32 are closed, so that the blades are completely closed. [95] At this time, the magnet 28 and the magnetic substance 38, which are mounted on the blades and the base 20, are mounted on the mutual contacting surface at the location of closing the opening 25. [96] The magnet 28 can be mounted on the first blade 31 and the second blade 32 and the magnetic substance 38 can be mounted on the base 20. And it is possible to mount the magnet 28 not only on the first blade 31 and the second blade 32 but also on the base 20.

[97] The present invention based on the above mentioned constitution will operate like as below.

[98] The power transfer axis 14 is rotated in making a circle when the power is applied to the driving part 10.

[99] The middle plate 40 is rotated, as the power transfer axis 14 is slid and rotated in the power transfer long hole 44.

[100] The guide protrusion 33 which is inserted into the guide long hole 43 by rotation of the middle plate 40 is slid along the guide long hole 43, so the first blade 31 and the second blade 32 are rotated centered on a hinge point on the base 20 to close and open the opening 25.

[101] To close the opening 25, when the first blade 31 and the second blade 32 are narrowly located up to a certain point, the first blade 31 and the second blade 32 are completely adhered by the magnet 35 and the magnetic substance 38 mounted on the first blade 31 and the second blade 32 so that the opening 25 is perfectly closed and dust and so on through the opening 25 can be perfectly prevented.

[102] Although the present invention has been described with reference to several exemplary embodiments, the description is illustrative of the invention and is not to be construed as limiting the invention. Various modifications and variations may occur to those skilled in the art, without departing from the spirit and scope of the invention, as defined by the appended claims.

[103]

Industrial Applicability

[104] As described above, the present invention can improve the operating performance and reliability of the apparatus for closing and opening the camera door by automatically and smoothly closing and opening the camera door in the mobile phone and completely closing the camera door by the blades.

Claims

[1] An apparatus for closing and opening camera door in mobile, comprising: a base disposed on a front of a lens with an opening; a driving part mounted on the base; a blade mounted to rotate on the base so as to close and open the opening; and a middle plate mounted to rotate on the upper or lower of the blade, wherein the middle plate is rotated by operating the driving part, and the blade is rotated by rotating the middle plate to close and open the opening, and the driving part rotates the middle plate by a magnetic force.

[2] The apparatus for closing and opening camera door in mobile as claimed in claim 1, wherein the driving part includes a power transfer axis which rotates is mounted on an eccentric location of the base against the opening, and the middle plate includes a power transfer long hole in form of a circular arc is formed into which the power transfer axis is inserted to rotate centered on the opening by rotating the power transfer axis.

[3] The apparatus for closing and opening camera door in mobile as claimed in claim 1 or 2, wherein when the blade comprises a plurality of blades, a guide protrusion is formed on each blade in an upper direction, and the middle plate includes a guide long hole in a form of the circular arc into which the guide protrusion is inserted and slid, so as to rotate the blades by rotation of the middle plate.

[4] The apparatus for closing and opening camera door in mobile as claimed in claim 1 or 2, wherein a magnet is mounted on the blade.

[5] The apparatus for closing and opening camera door in mobile as claimed in claim

1 or 2, wherein a magnet is mounted on either the blade or the base, and a magnet or a magnetic substance contacted to the magnet is mounted on the other.

[6] The apparatus for closing and opening camera door in mobile, comprising: a base including an opening and disposed on the front of a lens; and a blade mounted to rotate on the base so as to close and open the opening, wherein a magnet is mounted on the blade.

[7] The apparatus for closing and opening camera door in mobile as claimed in claim 6, wherein the blade comprises the plurality of blades to open and close the opening by mutually contacting both faces of the blades, and wherein a magnet is mounted on at least one of the plurality of the blades.

[8] The apparatus for closing and opening camera door in mobile as claimed in claim 6 or 7, wherein the magnet is mounted on the mutual contacting sides of the blades.

[9] The apparatus for closing and opening camera door in mobile, comprising: a base including an opening and disposed on the front of a lens; and a blade mounted to rotate on the base so as to close and open the opening, wherein a magnet is mounted on either the blade or the base, and a magnet or a magnetic substance contacted with the magnet is mounted on the other.