JP2007318326A - Open/close device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply perform both of opening and closing by one hand operation. <P>SOLUTION: A conversion plate 4 is supported between a front chassis 2 and a back chassis 3 so as to be movable along a U character-like moving route, and the upper and lower ends of the conversion plate 4 are inserted inside of a horizontal U character type operation frame 5. Operating the horizontal U character type operation frame 5 to upper and lower, the conversion frame 4 can be moved along the U character-like moving route. Gear teeth are prepared inside of a U character type hole 4a in a center of the conversion plate 4, a small circle form gear 6 is meshed with the gear teeth of the U character type hole 4a of the conversion plate 4, and a large circle form gear 7 is meshed with a rack gear 8. When the conversion plate 4 is moved along the U character-like moving route by upper and lower operation of the horizontal U character type operation frame 5, the small circle form gear 6 which is meshed with gear teeth of an inside circle of the U character type hole 4a of the conversion plate 4, rotates, the large circle form gear 7 rotates also, and the rack gear 8 meshed with the large circle form gear 7 performs strait line movement in upper and lower directions. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an opening / closing device suitable for opening / closing a mobile phone or the like.

  In an electronic device such as a cellular phone, the main body can be folded in half or the main body can be divided into two parts, and one of them can be slidably supported with respect to the other in order to achieve downsizing. Yes.

  For example, the mobile phone of Patent Document 1 includes a main body provided with a numeric keypad and a lid provided with a display screen and the like, and the lid is supported to be slidable with respect to the main body. The mobile phone is downsized, or the lid is slid from the main body to expose the numeric keypad so that it can be operated.

  Further, the sliding device of Patent Document 2 compresses and holds a spring when the lid is slid open, and slides the lid by the repulsive force of the spring when the lid is closed.

  Furthermore, there is a mobile phone as shown in FIGS. 13 (a) and 13 (b). This mobile phone includes a main body 101 and a lid 102 and supports the lid 102 so as to be slidable with respect to the main body 101. Two vertical groove holes 101a are formed in the main body 101, and two guide protrusions (not shown) of the lid body 102 are inserted into the respective vertical groove holes 101a, and the leading ends of these guide protrusions are respectively inserted. The fixing portion 103 is fixed, and the lid 102 is supported so as to be slidable in the vertical direction. Further, both ends of the guide rod 104 into which the coil spring 105 is inserted are fixedly supported on the main body 101, and one end of the coil spring 105 is connected to one fixing portion 103 via a connecting piece 106.

  In the state where the lid 102 is slid and overlapped with the main body 101 as shown in FIG. 13A, each fixing portion 103 moves to the lower end of each vertical groove 101a of the main body 101, and one fixing portion 103 is a coil spring. 105 is pushed down in the compression direction. At this time, the front end 107a of the opening / closing lever 107 on the main body 101 side is fitted into the recess 102a of the lid 102 through the hole 101b of the main body 101, and the lid 102 is locked against the urging force of the coil spring 105 in the extending direction. The

When the opening / closing lever 107 is operated and its tip 107a is removed from the recess 102a of the lid 102, the urging force in the extending direction of the coil spring 105 is released, and the coil spring 105 pushes up one fixing portion 103, and FIG. As shown in (b), each fixing portion 103 moves to the upper end of each longitudinal slot 101a of the main body 101, and the lid 102 slides upward.
JP 2003-110675 A Utility Model Registration No. 3112508

  However, in the mobile phone of Patent Document 1, it is necessary to operate and slide the lid by hand. To smoothly perform this operation, both hands must be used, which is not convenient. For example, if you have a baggage and one hand is closed, you can only slide the lid with the other hand, making it difficult to slide the lid.

  Further, in Patent Document 2 and FIGS. 13A and 13B, even if one of the opening and closing is performed by the biasing force of the spring, the other is performed by the two-handed operation, so that the operation cannot be performed smoothly. It was hard to say that it was easy to use.

  Therefore, the present invention has been made in view of the above-described conventional problems, and an object thereof is to provide an opening / closing device that can be easily opened and closed by one-handed operation.

  In order to solve the above problems, the present invention provides a U-shaped hole in a conversion plate, and gear teeth are provided on the inner periphery of the U-shaped hole of the conversion plate. A small circular gear that meshes with the gear teeth, a large circular gear concentrically overlapped and fixed to the small circular gear, a rack gear meshed with the large circular gear, and the U of the conversion plate The conversion plate is supported so as to be movable along the U-shaped movement path so that the gear teeth on the inner periphery of the letter-shaped hole can move while meshing with the small circular gear, and along the U-shaped movement path. An operation unit for operating the reciprocating movement of the conversion plate is provided.

  In addition, a reciprocating biasing spring that is compressed and deformed in the reciprocating direction when the conversion plate moves forward along the U-shaped moving path is provided, and the return path of the conversion plate is generated by the repulsive force of the reciprocating biasing spring. A move is made.

  In this case, the moving distance of the conversion plate due to the repulsive force of the reciprocating biasing spring is equal to or longer than the moving distance of the return movement of the conversion plate.

  In addition, the first orthogonal direction biasing spring that biases the conversion plate in one direction orthogonal to the reciprocating direction along the U-shaped moving path, and the conversion plate in the other direction orthogonal to the reciprocating direction. A second orthogonal urging spring is provided, and one of the first and second orthogonal urging springs is compressed during the return movement of the conversion plate along the U-shaped movement path, and the next conversion plate During the forward movement, the conversion plate is moved from the forward path side to the backward path side by the repulsive force of the compressed one of the orthogonal biasing springs.

  In this case, the moving distance of the conversion plate due to the repulsive force of the first and second orthogonal biasing springs is equal to or longer than the moving distance of the conversion plate from the forward path side to the return path side.

  Further, the repulsive force of the reciprocating biasing spring is set larger than the repulsive forces of the first and second orthogonal biasing springs.

  Further, a vertex moving biasing spring that is compressed and deformed by the movement of the conversion plate near the vertex of the U-shaped moving path is provided, and the rebound force of the vertex moving biasing spring causes the conversion plate to move from the forward path side to the return path side. Assistance of movement is made.

  The operation unit is arranged at a position where the device to which the opening / closing device is applied can be operated with the thumb of the hand when the device is held with the hand.

  According to the present invention as described above, the conversion plate can be moved along the U-shaped movement path so that the gear teeth on the inner periphery of the U-shaped hole of the conversion plate can move in a state of meshing with the small circular gear. I support it. Then, the conversion plate is reciprocated along the U-shaped movement path by operating the operation unit. When the conversion plate reciprocates along the U-shaped movement path, the gear teeth on the inner periphery of the U-shaped hole also reciprocate along the U-shaped movement path, and mesh with the U-shaped movement path. The small circular gear rotates, the large circular gear concentrically overlapping the small circular gear rotates, and the rack gear meshed with the large circular gear moves linearly. The circular gear continues to rotate in one rotation direction along with a substantially linear forward movement along the U-shaped movement path, a curved movement near the apex, and a substantially linear backward movement. Accordingly, the large circular gear also continues to rotate in one rotation direction, and the rack gear moves linearly in one direction.

  The circular gear continues to rotate in the reverse rotation direction as it moves in the reverse direction along the U-shaped movement path. Accordingly, the large circular gear also continues to rotate in the reverse rotation direction, and the rack gear moves linearly in the reverse direction.

  Since the operation of the operation unit is performed to reciprocate the conversion plate along the U-shaped movement path, the operation is not a simple linear operation in one direction but a reciprocating operation, and a simple linear operation in one direction. Compared with, the operation range of the operation unit is narrow. Also, the small circular gear rotates, the concentric large circular gear rotates to the small circular gear, and the rack gear meshed with the large circular gear moves linearly, so the rack gear is directly attached to the small circular gear. Compared with the case of meshing, the movement distance of the rack gear becomes longer.

  That is, the rack gear can be reciprocated over a sufficient distance by a slight operation amount of the operation unit.

  Such a reciprocating movement of the rack gear can be applied to, for example, opening and closing a lid of a mobile phone. Thereby, both opening and closing of the lid can be easily performed by one-hand operation.

  In addition, the reciprocating biasing spring is compressed and deformed when the conversion plate moves along the U-shaped moving path, and the conversion plate is moved back by the repulsive force of the reciprocating biasing spring. The moving distance of the conversion plate due to the repulsive force of the reciprocating biasing spring is equal to or longer than the moving distance of the return movement of the conversion plate.

  When such a reciprocating urging spring is provided, it is necessary to operate the operating portion to move the conversion plate in the forward direction, but the reciprocating force of the reciprocating urging spring moves the conversion plate in the backward direction. The operation of the operation unit for the return plate movement of the conversion plate is simplified.

  Also, first and second orthogonal direction biasing springs are provided to bias the conversion plate in both directions orthogonal to the reciprocating direction along the U-shaped movement path, respectively, and the first and second when the conversion plate moves backward. One of the orthogonal urging springs is compressed, and the conversion plate is moved from the forward path side to the backward path side by the repulsive force of the one orthogonal urging spring compressed during the next movement of the conversion plate. The moving distance of the conversion plate due to the repulsive force of the orthogonal biasing spring is equal to or longer than the moving distance of the conversion plate from the forward path side to the return path side.

  When such first and second orthogonal direction urging springs are provided, the conversion plate is reliably and smoothly moved from the forward path side to the return path side.

  Further, the repulsive force of the reciprocating biasing spring is made larger than the repulsive forces of the first and second orthogonal biasing springs. Thereby, the conversion plate is smoothly moved along the U-shaped movement path.

  In addition, a vertex movement biasing spring that is compressed and deformed by the movement of the conversion plate near the vertex of the U-shaped movement path is provided, and the movement of the conversion plate from the forward path side to the return path side is performed by the repulsive force of the vertex movement biasing spring. Assistance is made. Thereby, the movement of the conversion plate in the direction orthogonal to the reciprocating movement direction becomes more reliable.

  The operation unit is disposed at a position where the operation unit can be operated with the thumb of the hand when the device to which the opening / closing device is applied is held by hand. This facilitates the operation with one hand.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  1A, 1B, 1C, and 1D are a left side view, a front view, a right side view, and a top view showing an embodiment of an opening and closing device of the present invention. 2 (a), (b), (c), and (d) are a perspective view of the switchgear according to the present embodiment as seen from the left, a perspective view as seen from the front, and a view as seen from the right. FIG. 2 is a perspective view and a perspective view seen from above.

  In the opening / closing device 1 of the present embodiment, the conversion plate 4 is supported between the front housing 2 and the back housing 3 so as to be movable along the U-shaped movement path, and the upper and lower ends of the conversion plate 4 are U-shaped. It is sandwiched inside the operation frame 5. By operating the U-shaped operation frame 5 up and down, the conversion plate 4 can be moved along the U-shaped movement path.

  A U-shaped hole 4a is formed at the center of the conversion plate 4, and gear teeth are provided on the inner periphery of the U-shaped hole 4a. The small circular gear 6 and the large circular gear 7 are pivotally supported at the center of the front casing 2, the small circular gear 6 is disposed between the front casing 2 and the rear casing 3, and the small circular gear 6 is disposed on the conversion plate 4. The large circular gear 7 is arranged on the outer side of the front housing 2 and meshed with the gear teeth on the inner periphery of the U-shaped hole 4 a, and the large circular gear 7 is meshed with the rack gear 8.

  When the conversion plate 4 is moved along the U-shaped movement path by moving the U-shaped operation frame 5 up and down, the small circular gear meshed with the gear teeth on the inner periphery of the U-shaped hole 4a of the conversion plate 4 6 rotates, the large circular gear 7 also rotates, and the rack gear 8 meshed with the large circular gear 7 linearly moves in the vertical direction.

  FIGS. 3A and 3B are a front view and a top view showing the front housing 2. Each side plate 2a is provided on the top and bottom of the front housing 2, and each hole 2b through which the conversion plate 4 is inserted is formed in each side plate 2a.

  Further, a hole 2c is provided in the center of the front housing 2, and a common shaft 10 for connecting the small circular gear 6 and the large circular gear 7 is inserted through the central hole 2c as shown in FIG. And a large circular gear 7 are pivotally supported.

  Furthermore, guide pins 9 for projecting the conversion plate 4 so as to be movable along the U-shaped movement path are provided at two positions above and below the center hole 2c of the front housing 2.

  4A and 4B are a front view and a top view showing the back housing 3 and the U-shaped operation frame 5, respectively. Side plates 3a and 3b are provided on the left and right sides of the back housing 3, and one side plate 3a is extended upward and bent at a right angle. The bent portion is used as a spring fixing portion 3c, and a hole in the spring fixing portion 3c is provided. A fixing pin 11 is inserted through the upper end of the coil spring 12 and is fixed by the fixing pin 11.

  1 and 2, the left and right side plates 3a, 3b of the back housing 3 and the upper and lower side plates 2a of the front housing 2 are combined to form one housing, and the conversion plate 4 is It arrange | positions through the hole 2b of each side plate 2a of the upper and lower sides of the front housing | casing 2. As shown in FIG.

  First and second orthogonal direction urging springs 13 and 14 are screwed to the inside of the side plates 3a and 3b of the back housing 3, respectively. The conversion plate 4 is disposed between the first and second orthogonal direction biasing springs 13 and 14 and is biased toward the center by the first and second orthogonal direction biasing springs 13 and 14.

  The U-shaped operation frame 5 is a U-shaped member composed of a side plate 5a and upper and lower clamping pieces 5b. As shown in FIG. 2, the upper and lower ends of the conversion plate 4 are sandwiched between the upper and lower clamping pieces 5b. The conversion plate 4 is supported so as to be movable in the left-right direction. An operation lever 15 is provided on the side plate 5 a of the U-shaped operation frame 5.

  Two guide holes 5 c that are long in the vertical direction are formed in the side plate 5 a of the U-shaped operation frame 5, and two round holes 3 d are formed in the side plate 3 b of the back housing 3. The two screws 16 are passed through the guide holes 5c of the side plate 5a of the U-shaped operation frame 5 and further passed through the round holes 3d of the side plate 3b of the back housing 3 and screwed into the respective nuts 17 to be fixed. Is done. Thereby, as shown in FIG. 1, the U-shaped operation frame 5 is supported by the guide holes 5c of the side plate 5a so as to be vertically movable.

  As shown in FIG. 2, the lower end of the coil spring 12 of the rear housing 3 abuts on the upper clamping piece 5b of the U-shaped operation frame 5, and attaches the U-shaped operation frame 5 and the conversion plate 4 downward. It is fast.

  FIG. 6 is a front view showing the conversion plate 4. The conversion plate 4 has a U-shaped hole 4a at the center thereof, and a pair of linear inner peripheral portions 4b opposed to the U-shaped hole 4a and a curved inner peripheral portion 4c between the respective linear inner portions 4b. The gear teeth are formed on.

  Further, U-shaped guide holes 4d for supporting the conversion plate 4 so as to be movable along the U-shaped movement path are formed at two positions above and below the U-shaped hole 4a of the conversion plate 4. Yes. As shown in FIG. 2, each guide pin 9 of the front housing 2 is inserted into each U-shaped guide hole 4d of the conversion plate 4 to limit the movement range of the conversion plate 4 to the U-shaped movement path. Thus, the conversion plate 4 is supported so as to be movable along the U-shaped movement path in a state where the gear teeth on the inner periphery of the U-shaped hole 4 a of the conversion plate 4 are engaged with the small circular gear 6.

  Further, respective guide grooves 4 e are formed above the respective U-shaped guide holes 4 d of the conversion plate 4. As shown in FIG. 2, each guide groove 4e is for supporting each vertex movement urging spring 18 so as to be movable in the left-right direction.

  FIGS. 5A and 5B are a front view and a side view showing the apex moving bias spring 18. The apex moving biasing spring 18 includes a triangular prism-shaped support piece 18a and respective dog-shaped springs 18b fixed to both ends of the triangular prism-shaped support piece 18a. Facing each other. As shown in FIG. 2, the protrusions 18c on the back surface side of the triangular prism-shaped support pieces 18a are inserted into the respective guide grooves 4e of the conversion plate 4 to support the vertex movement biasing springs 18 so as to be movable in the left-right direction. .

  Next, the operation and operation of the switchgear 1 having such a configuration will be described in detail with reference to FIGS. 7, 8, 9, and 10.

  First, in the initial state as shown in FIGS. 7A and 9A, the end positions p1 of the U-shaped guide holes 4d of the conversion plate 4 abut on the guide pins 9 of the front housing 2, The conversion plate 4 moves to the lowermost side and the left side with respect to the front housing 2 and the back housing 3, and the U-shaped operation frame 5 moves to the lowermost side. At this time, the coil spring 12 extends and the lower end presses the holding piece 5b on the upper side of the U-shaped operation frame 5. Further, the conversion plate 4 presses the second orthogonal direction biasing spring 14 in the left direction, the second orthogonal direction biasing spring 14 is compressed and deformed, and the first orthogonal direction biasing spring 13 is separated from the conversion plate 4. Have been released. Further, each guide pin 9 of the front housing 2 presses one inclined surface 18d of the triangular columnar support piece 18a of each vertex movement biasing spring 18 of the conversion plate 4, so that each vertex movement biasing spring 18 has a respective guide groove. It has been moved to the leftmost position of 4e.

  Further, the small circular gear 6 meshes with the upper side of the linear inner peripheral portion 4b on the right side of the U-shaped hole 4a of the conversion plate 4, and the rack gear 8 meshed with the large circular gear 7 moves downward. Yes.

  Here, when the operation lever 15 of the U-shaped operation frame 5 is pushed up in the arrow direction A as shown in FIGS. 7B, 9B, and 9C, the U-shaped operation frame 5 Moves upward together with the conversion plate 4. Along with this, the U-shaped hole 4a of the conversion plate 4 moves upward, and the small circular gear 6 meshed with the linear inner periphery 4b on the right side of the U-shaped hole 4a Rotate clockwise.

  And the vertex position pp of each U-shaped guide hole 4d of the conversion plate 4 reaches and contacts each guide pin 9 of the front housing 2, and at the same time, the holding piece 5b on the lower side of the U-shaped operation frame 5 is displayed. When it comes into contact with the lower side plate 2a of the housing 2, the operation lever 15 cannot be pushed up, and the upward movement of the conversion plate 4 is stopped. At this time, the conversion plate 4 moves to the uppermost side, and the coil spring 12 is compressed and deformed.

  Further, when the apex position pp of each U-shaped guide hole 4d of the conversion plate 4 moves to the vicinity of each guide pin 9, the conversion plate 4 can be moved in the right direction along the U-shaped movement path. Thus, the conversion plate 4 is moved rightward by the urging force of the second orthogonal direction urging spring 14 that has been compressed and deformed. Further, since the right-sided dog spring 18b of each vertex moving biasing spring 18 is deformed by being pressed against each guide pin 9, the conversion plate 4 is also deformed by the biasing force of these right-handed dog-shaped springs 18b. Move to the right. Thereby, the conversion plate 4 is moved rightward until the vertex position pp of each U-shaped guide hole 4d of the conversion plate 4 passes through each guide pin 9.

  Thus, when the apex position pp of each U-shaped guide hole 4 d of the conversion plate 4 is moved before and after each guide pin 9, the small circular gear 6 moves to the curved inner periphery of the U-shaped hole 4 a of the conversion plate 4. It rotates counterclockwise in the direction of arrow B while meshing with 4c.

  Subsequently, when the operation lever 15 of the U-shaped operation frame 5 is released as shown in FIGS. 7C and 9D, the conversion plate 4 and the U-shaped operation are performed by the coil spring 12 that has been compressed and deformed. The frame 5 is urged downward. At this time, the vertex position pp of each U-shaped guide hole 4d of the conversion plate 4 has already passed each guide pin 9, and the conversion plate 4 is moved further to the right along the U-shaped movement path, and further converted. The conversion plate 4 is moved downward together with the U-shaped operation frame 5 until the end position p2 of each U-shaped guide hole 4d of the plate 4 contacts each guide pin 9. As a result, the conversion plate 4 is moved to the lowermost side and the right side.

  As the conversion plate 4 moves in the right direction, the conversion plate 4 presses the first orthogonal direction biasing spring 13 in the right direction, and the first orthogonal direction biasing spring 13 is compressed and deformed, and the second orthogonal direction. The biasing spring 14 is released away from the conversion plate 4. Further, each guide pin 9 of the front housing 2 presses the other inclined surface 18e of the triangular columnar support piece 18a of each vertex movement biasing spring 18 of the conversion plate 4, and each vertex movement biasing spring 18 is in the respective guide groove. 4e is moved to the rightmost position.

  Further, as the conversion plate 4 moves downward, the small circular gear 6 meshes with the linear inner peripheral portion 4b on the left side of the U-shaped hole 4a of the conversion plate 4 and is also counterclockwise in the arrow direction B. Rotate.

  That is, in the state where the conversion plate 4 is moved to the lowermost side and the left side as shown in FIGS. 7 (a) and 9 (a), FIG. 7 (b), FIG. 9 (b), and FIG. As shown, when the operation lever 15 is pushed up, the conversion plate 4 moves upward along the U-shaped movement path, and the coil spring 12 is compressed and deformed. The conversion plate 4 is moved rightward by the urging force of the second orthogonal direction urging spring 14 and the urging force of the dogleg spring 18 b on the right side of each vertex moving urging spring 18. Further, when the operation lever 15 is released as shown in FIGS. 7C and 9D, the conversion plate 4 is moved downward by the urging force of the coil spring 12, and the conversion plate 4 is at the lowest position. And move to the right.

  Thus, when the conversion plate 4 reciprocates along the U-shaped movement path, the small circular gear 6 moves from the upper side of the straight inner peripheral portion 4b on the right side of the U-shaped hole 4a of the conversion plate 4 to the curved inner peripheral portion 4c. , And continues to rotate counterclockwise in the arrow direction B while meshing to the upper side of the left linear inner peripheral portion 4b via the pin, and the large circular gear 7 also continues to rotate counterclockwise in the arrow direction B. For this reason, the rack gear 8 meshed with the large circular gear 7 moves from the lower side to the upper side as shown in FIGS. 7 (a) to 7 (c).

  Next, as shown in FIGS. 8A and 10A (as in FIGS. 7C and 9D), the end position p2 of each U-shaped guide hole 4d of the conversion plate 4 is It is assumed that the abutting against each guide pin 9 of the front housing 2, the conversion plate 4 is moved to the lowermost and right side, and the U-shaped operation frame 5 is moved to the lowermost side. At this time, the coil spring 12 is extended, the first orthogonal direction biasing spring 13 is pressed rightward to be compressed and deformed, and the second orthogonal direction biasing spring 14 is released away from the conversion plate 4. Further, each guide pin 9 of the front housing 2 presses the other inclined surface 18e of the triangular columnar support piece 18a of each vertex movement biasing spring 18 of the conversion plate 4, and each vertex movement biasing spring 18 is in the respective guide groove. 4e has been moved to the rightmost position.

  Further, the small circular gear 6 meshes with the upper side of the linear inner peripheral portion 4b on the left side of the U-shaped hole 4a of the conversion plate 4, and the rack gear 8 meshed with the large circular gear 7 moves upward. Yes.

  When the operation lever 15 of the U-shaped operation frame 5 is pushed up in the arrow direction A as shown in FIGS. 8B, 10B, and 10C, the U-shaped operation frame 5 is converted into the conversion plate. 4 moves upward, and the small circular gear 6 meshed with the linear inner peripheral portion 4b on the left side of the U-shaped hole 4a of the conversion plate 4 rotates clockwise in the direction of arrow C.

  And the vertex position pp of each U-shaped guide hole 4d of the conversion plate 4 reaches and contacts each guide pin 9 of the front housing 2, and at the same time, the holding piece 5b on the lower side of the U-shaped operation frame 5 is displayed. If it contacts the lower side plate 2a of the housing 2, the operation lever 15 cannot be pushed up, the upward movement of the conversion plate 4 stops, and the coil spring 12 is compressed and deformed.

  Further, when the apex position pp of each U-shaped guide hole 4d of the conversion plate 4 moves to the vicinity of each guide pin 9, the conversion plate 4 can be moved in the left direction along the U-shaped movement path. Thus, the conversion plate 4 is moved leftward by the urging force of the first orthogonal direction urging spring 13 that has been compressed and deformed. Further, the left-sided dog springs 18b of the vertex moving biasing springs 18 are pressed against the guide pins 9 to be temporarily deformed, and the conversion plate 4 is also deformed by the biasing force of the left-sided dog springs 18b. Move to the left. Thereby, the conversion plate 4 is moved to the left until the apex position pp of each U-shaped guide hole 4d of the conversion plate 4 passes through each guide pin 9.

  Thus, even when the apex position pp of each U-shaped guide hole 4 d of the conversion plate 4 is moved before and after each guide pin 9, the small circular gear 6 remains within the curved shape of the U-shaped hole 4 a of the conversion plate 4. It rotates clockwise in the arrow direction C while meshing with the peripheral portion 4c.

  Subsequently, when the operation lever 15 of the U-shaped operation frame 5 is released as shown in FIGS. 8C and 10D, the conversion plate 4 and the U-shaped operation are operated by the coil spring 12 that has been compressed and deformed. The frame 5 is urged downward. At this time, the conversion plate 4 is moved further leftward along the U-shaped movement path, and further, the conversion plate 4 is moved until the end position p1 of each U-shaped guide hole 4d of the conversion plate 4 comes into contact with each guide pin 9. 4 is moved downward together with the U-shaped operation frame 5. Thereby, it will be in the state which the conversion plate 4 moved to the lowest side and the left side.

  As the conversion plate 4 moves in the left direction along the U-shaped movement path, the conversion plate 4 presses the second orthogonal direction biasing spring 14 in the left direction, and the second orthogonal direction biasing spring 14 is compressed. The first orthogonal direction biasing spring 13 is deformed and released away from the conversion plate 4. Further, each guide pin 9 of the front housing 2 presses one inclined surface 18d of the triangular columnar support piece 18a of each vertex movement biasing spring 18 of the conversion plate 4, so that each vertex movement biasing spring 18 has a respective guide groove. 4e is moved to the leftmost position.

  Further, as the conversion plate 4 moves downward along the U-shaped movement path, the small circular gear 6 meshes with the straight inner periphery 4b on the right side of the U-shaped hole 4a of the conversion plate 4 while moving in the direction of the arrow. Rotate C clockwise.

  That is, as shown in FIGS. 8 (a) and 10 (a), the conversion plate 4 is moved to the lowermost and right side as shown in FIGS. 8 (b), 10 (b), and 10 (c). As shown, when the operation lever 15 is pushed up, the conversion plate 4 is moved upward along the U-shaped movement path, and the coil spring 12 is compressed and deformed. Then, the conversion plate 4 is moved leftward by the biasing force of the first orthogonal direction biasing spring 13 and the biasing force of the left-sided spring 18b of each vertex moving biasing spring 18. Further, when the operation lever 15 is released as shown in FIGS. 8C and 10D, the conversion plate 4 is moved downward by the urging force of the coil spring 12, and the conversion plate 4 is at the lowest position. And it will be in the state which moved to the right side.

  Thus, when the conversion plate 4 reciprocates along the U-shaped movement path, the small circular gear 6 moves from the upper side of the linear inner peripheral portion 4b on the left side of the U-shaped hole 4a of the conversion plate 4 to the curved inner peripheral portion. While rotating to the upper side of the right linear inner peripheral portion 4b through 4c, it continues to rotate clockwise in the arrow direction C, and the large circular gear 7 also continues to rotate clockwise in the arrow direction C. For this reason, the rack gear 8 meshed with the large circular gear 7 moves from the upper side to the lower side as shown in FIGS. 8 (a) to 8 (c).

  Here, the rack gear 8 moves from below to above in the procedure of FIGS. 7 (a) to 7 (c), and the rack gear 8 moves down from above in the procedure of FIGS. 8 (a) to 8 (c). Has moved to. 7A and FIG. 8C are in the same state, and FIG. 7C and FIG. 8A are in the same state. That is, starting from the state of FIG. 7A, the state returns to the state of FIG. 8C (the state of FIG. 7A) through the states of FIG. 7C and FIG. 8A.

  Accordingly, as shown in FIGS. 7A and 7B, the operation lever 15 of the U-shaped operation frame 5 is pushed up to move the conversion plate 4 to the uppermost position, and the operation is performed as shown in FIG. 7C. The lever 15 is released, the conversion plate 4 is moved to the lowest position, and then the operation lever 15 of the U-shaped operation frame 5 is pushed up again as shown in FIGS. 8 (a) and 8 (b). The operation of moving the plate 4 to the uppermost position, releasing the operation lever 15 as shown in FIG. 8C, and moving the conversion plate 4 to the lowermost position can be repeated. 8 can be reciprocated up and down.

  The reciprocating operation of the operation lever 15 is converted into a vertical movement of the rack gear 8 through the U-shaped hole 4a of the conversion plate 4, the small circular gear 6, the large circular gear 7, and the like. That is, one reciprocal operation of the operation lever 15 as shown in FIGS. 7A to 7C is converted into a linear movement from the lower direction to the upper direction of the rack gear 8, and further, FIGS. One reciprocal operation of the operation lever 15 as shown in FIG. 8C is converted into a linear movement from the upward direction to the downward direction of the rack gear 8.

  Further, the concentric large circular gear 7 rotates on the small circular gear 6 and the rack gear 8 meshed with the large circular gear 7 moves linearly, so that the rack gear 8 is directly toothed on the small circular gear 6. Compared with the case of combining, the movement distance of the rack gear 8 becomes longer.

  As a result, the rack gear 8 can be reciprocated over a sufficient distance by a slight operation amount of the operation lever 15.

  For example, when the distance of pushing up the operating lever 15 is about 8 mm, when the operating lever 15 is pushed up and released, the conversion plate 4 reciprocates along the U-shaped moving path by a distance of 20 mm, and the peripheral edge of the small circular gear 6 Rotates by a distance of 20 mm. When the diameter of the large circular gear 7 is set to be twice the diameter of the small circular gear 6, when the peripheral edge of the small circular gear 6 rotates by a distance of 20 mm, the peripheral edge of the large circular gear 7 rotates by a distance of 40 mm. Then, the rack gear 8 moves linearly in one direction by 40 mm. When the operating lever 15 is pushed up again and released, the conversion plate 4 reciprocates in the reverse direction by a distance of 20 mm along the U-shaped movement path, and the peripheral edge of the large circular gear 7 rotates in the reverse direction by a distance of 40 mm. The rack gear 8 moves linearly in the opposite direction by 40 mm.

  Further, when the conversion plate 4 moves upward, the coil spring 12 is compressed and deformed, and the conversion plate 4 is moved downward by the repulsive force of the coil spring 12, so that only the operation of pushing up the operation lever 15 is required. The operation of lowering the operation lever 15 is not necessary, and the operation of the operation lever 15 is simplified.

  Further, since the conversion plate 4 is moved in the left-right direction by the first and second orthogonal direction biasing springs 13, 14, the conversion plate 4 can be moved in the left-right direction reliably and smoothly.

  However, the repulsive force of the compressed and deformed coil spring 12 needs to be set so that the conversion plate 4 can be moved by a distance of 20 mm or more. Similarly, it is necessary to set the repulsive force of the first and second orthogonal direction biasing springs 13 and 14 that are compressed and deformed so that the conversion plate 4 can be moved from the forward path side to the backward path side.

  Further, as shown in FIGS. 7C, 7D, 8C, and 8D, when the conversion plate 4 moves downward by the repulsive force of the coil spring 12, the first and second orthogonal directions are used. It is necessary to set the relationship between the repulsive force of the coil spring 12 and the repulsive force of the first and second orthogonal direction urging springs 13 and 14 so that either of the urging springs 13 and 14 can be compressed and deformed.

  11 (a), 11 (b), and 11 (c) are a perspective view showing a mobile phone to which the opening / closing device 1 of this embodiment is applied as seen from the front, a perspective view seen from the right, and a top view. FIG.

  The cellular phone 21 includes a main body 22 and a lid body 23, and supports the lid body 23 slidably with respect to the main body 22. On the main body 22 side, the front housing 2, the back housing 3, the conversion plate 4, the U-shaped operation frame 5, the small circular gear 6, the large circular gear 7, and the like in the opening / closing device 1 of the present embodiment are provided. The operation lever 15 of the U-shaped operation frame 5 protrudes from the side surface of the main body 22. Moreover, the rack gear 8 in the opening / closing device 1 of the present embodiment is fixed to the lid body 23.

  Here, as shown in FIG. 11A, when the main body 22 is held at an appropriate position on the palm of the hand, the thumb of the hand hits the operation lever 15 and the operation lever 15 can be operated by the thumb. In this state, when the operating lever 15 is released after the operating lever 15 is pushed up with the thumb, the rack gear 8 moves from the lower side to the upper side according to the procedure of FIGS. 7 (a) to 7 (c). Along with this, as shown in FIGS. 12A, 12 </ b> B, and 12 </ b> C, the lid body 23 to which the rack gear 8 is fixed slides upward with respect to the main body 22.

  In the state of FIG. 12, when the operating lever 15 is released after the operating lever 15 is pushed up again with the thumb, the rack gear 8 moves from the upper side to the lower side according to the procedure of FIGS. 8 (a) to 8 (c). Accordingly, the lid body 23 is also slid downward, and returns to the original state where the lid body 23 overlaps the main body 22 as shown in FIG.

  In addition, this invention is not limited to the said embodiment, It can deform | transform variously. For example, the type, shape, arrangement position, etc. of each spring may be changed as appropriate. The opening / closing device of the present invention can be applied not only to a cellular phone but also to other portable electronic devices.

(A), (b), (c), and (d) are the left view, front view, right view, and top view which show one Embodiment of the switchgear of this invention. (A), (b), (c), and (d) are a perspective view of the switchgear shown in FIG. 1 seen from the left, a perspective view seen from the front, a perspective view seen from the right, and the top. FIG. (A), (b) is the front view and top view which show the front housing | casing in the switchgear of FIG. (A), (b) is the front view and top view which show the back housing | casing and the U-shaped operation frame in the opening / closing apparatus of FIG. (A), (b) is the front view and side view which show the vertex movement urging | biasing spring in the opening / closing apparatus of FIG. It is a front view which shows the conversion plate in the opening / closing apparatus of FIG. (A)-(c) is a figure which shows the operation | movement procedure for moving the rack gear in the opening / closing apparatus of FIG. 1 from the downward direction to the upward direction. (A)-(c) is a figure which shows the operation | movement procedure for moving the rack gear in the opening / closing apparatus of FIG. 1 from upper direction to the downward direction. (A)-(d) is a figure which expands and shows the state of a conversion plate and a gear when moving the rack gear in the opening / closing apparatus of FIG. 1 from the downward direction to the upper direction. (A)-(d) is a figure which expands and shows the state of a conversion plate and a gear when moving the rack gear in the opening / closing apparatus of FIG. 1 from upper direction to the downward direction. (A), (b), and (c) are the perspective view which shows the mobile phone which applied the switchgear of FIG. 1 from the front, the perspective view seen from the right, and the perspective view seen from the top is there. (A), (b), and (c) are perspective views showing the mobile phone as seen from the front, with the lid of the mobile phone shown in FIG. 11 being moved upward, FIG. 3 is a perspective view seen from above. (A), (b) is a figure which shows the opening / closing operation | movement of the conventional mobile telephone.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing device 2 Front housing | casing 3 Back housing | casing 4 Conversion plate 5 U-shaped operation frame 6 Small circular gear 7 Large circular gear 8 Rack gear 9 Guide pin 11 Fixing pin 12 Coil spring 13 1st orthogonal direction biasing spring 14 1st 2 orthogonal direction urging spring 15 operating lever 18 vertex moving urging spring 21 mobile phone 22 main body 23 lid

Claims (8)

A U-shaped hole is formed in the conversion plate, gear teeth are provided on the inner periphery of the U-shaped hole of the conversion plate, and a small circular gear is provided that meshes with the gear teeth on the inner periphery of the U-shaped hole of the conversion plate. The large circular gear is concentrically overlapped and fixed to the small circular gear, and the rack gear is meshed with the large circular gear.
The conversion plate is movably supported along a U-shaped movement path so that the gear teeth on the inner periphery of the U-shaped hole of the conversion plate can move in a state of meshing with the small circular gear,
An opening / closing device provided with an operation unit for operating the reciprocating movement of the conversion plate along the U-shaped movement path.   A reciprocating biasing spring is provided that is compressed and deformed in the reciprocating direction when the conversion plate moves in the forward direction along the U-shaped moving path. The switchgear according to claim 1, wherein the switchgear is made.   The opening / closing apparatus according to claim 2, wherein a moving distance of the conversion plate due to a repulsive force of the reciprocating biasing spring is equal to or longer than a moving distance of the return movement of the conversion plate. A first orthogonal direction urging spring that urges the conversion plate in one direction orthogonal to the reciprocating direction along the U-shaped movement path, and urges the conversion plate in the other direction orthogonal to the reciprocating direction. A second orthogonal biasing spring;
One of the first and second orthogonal urging springs is compressed when the conversion plate moves in the backward direction along the U-shaped movement path, and the one compressed when the conversion plate is moved forward in the next time. 2. The switchgear according to claim 1, wherein the conversion plate is moved from the forward path side to the return path side by the repulsive force of the orthogonal biasing spring.   5. The opening and closing according to claim 4, wherein the moving distance of the conversion plate by the repulsive force of the first and second orthogonal biasing springs is equal to or longer than the moving distance of the conversion plate from the forward path side to the return path side. apparatus. A reciprocating biasing spring is provided that is compressed and deformed in the reciprocating direction when the conversion plate moves in the forward direction along the U-shaped moving path, and the return path of the conversion plate is moved by the repulsive force of the reciprocating biasing spring. Made,
A first orthogonal direction urging spring that urges the conversion plate in one direction orthogonal to the reciprocating direction along the U-shaped movement path, and urges the conversion plate in the other direction orthogonal to the reciprocating direction. A second orthogonal urging spring is provided, and one of the first and second orthogonal urging springs is compressed during the backward movement of the conversion plate along the U-shaped movement path, and the next forward path of the conversion plate The conversion plate is moved from the forward path side to the backward path side by the repulsive force of the one orthogonal biasing spring compressed at the time of movement,
2. The switchgear according to claim 1, wherein a repulsive force of the reciprocating biasing spring is larger than a repulsive force of the first and second orthogonal biasing springs.   A vertex moving biasing spring that is compressed and deformed by the movement of the conversion plate near the vertex of the U-shaped moving path is provided, and the reversing force of the vertex moving biasing spring moves the conversion plate from the forward path side to the return path side. The opening and closing device according to claim 1, wherein   2. The switchgear according to claim 1, wherein the operation unit is disposed at a position where the operation unit can be operated by a thumb when the device to which the switchgear is applied is gripped by a hand.

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