JP2006351730A - Openable/closable panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an openable/closable panel which is constituted with a simplified structure and can also be accommodated easily. <P>SOLUTION: The openable/closable panel comprises a panel unit 32 including a rotating axis 53 provided as the fulcrum of the opening and closing operations through rotation, a case body forming the accommodation space of the panel unit, and a panel accommodating case 31 including a rotating axis holding unit 43 for holding the rotating axis in the rotatable condition. The panel unit 32 is formed for selection of weight distribution to realize accommodation in the relevant panel accommodation case 31, when an opening angle θ for the longitudinal line defining the relevant rotating axis 53 as the fulcrum becomes equal to the predetermined equilibrium angle θ' of 27°. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an open / close panel device, and is suitable for application to, for example, a mini component stereo.

  Conventionally, in a mini component stereo, operation buttons are often arranged on a front portion that is easy for a user to operate. In addition, there has been proposed an openable panel device that accommodates a panel on which an operation button is mounted in a normal state and exposes the panel by opening only at the time of use so that the operation button can be used.

As such an open / close panel device, there is one that opens and closes an operation panel by a rotating operation with a rotating shaft as a fulcrum (see, for example, Patent Document 1).
JP 2003-174267 A

  By the way, in the open / close panel device having such a configuration, since the operation panel is opened by the biasing force of the spring that is constantly applied in the opening operation direction, the operation panel is stored in the storage position against the biasing force of the spring when stored. Then, the operation panel had to be locked using a locking tool. As a result, this open / close type operation panel device has a problem that the work relating to the storage of the user is complicated and the configuration is complicated by the amount of the spring and the locking tool.

  The present invention has been made in consideration of the above points, and an object of the present invention is to propose an openable panel device that can be stored by a simple operation by a user with a simple configuration.

  In order to solve such a problem, in the open / close panel device of the present invention, a panel portion having a rotation shaft portion serving as a fulcrum during an opening / closing operation by rotation, a storage space forming portion forming a storage space of the panel portion, and A panel storage portion having a rotation shaft holding portion for holding the rotation shaft portion in a freely rotatable state, and the shape of the panel portion is stored at a predetermined angle with the rotation shaft portion as a fulcrum. The weight distribution was selected so as to be drawn into the space forming part.

  Thus, after the user closes the panel unit to a predetermined angle, the panel is automatically drawn into the storage space forming unit and stored by its own weight.

  Further, the open / close panel device of the present invention has a rotating shaft portion that becomes a fulcrum during a rotating operation for opening or closing, and a fixed portion for stopping the rotating operation in the closed state. A panel having a panel portion, a storage space forming portion for forming a storage space for the panel portion, a rotating shaft holding portion for holding the rotating shaft portion in a rotatable state, and a fixing portion for fixing the fixed portion by magnetic force The shape of the panel portion is selected so as to be distributed in weight so as to be drawn into the storage space forming portion when a predetermined angle is reached with the rotating shaft portion as a fulcrum.

  Thereby, after the user's operation of closing the panel unit to a predetermined angle, the panel unit is automatically drawn into the storage space forming unit and stored by its own weight.

  According to the present invention, after the operation of closing the panel unit to a predetermined angle, the panel unit is automatically drawn into and stored in the storage space forming unit due to the weight of the panel unit. An openable panel device that can be stored by a simple operation by a user can be realized.

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

(1) Overall Configuration of Mini Component Stereo As shown in FIG. 1, a mini component stereo (hereinafter referred to as a “mini component”) 1 has a rectangular parallelepiped shape as a whole, and has a front operation panel section 2 in a forward direction. The front operation panel 2 at the center of the front, the speaker 3 at both ends of the front, and the top operation panel 4 at the center of the upper surface.

  The front operation panel unit 2 includes an MD (Mini Disc (registered trademark)) insertion slot 5, a CD (Compact Disc) insertion slot 6, and a display unit 8 including an LCD (Liquid Crystal Display) or the like. On the other hand, the top operation panel unit 4 has a cassette tape storage unit 9.

  In the mini component 1, music information recorded on various recording media inserted into the MD insertion slot 5 and the CD insertion slot 6 through the speaker 3 or stored in the cassette tape storage section 9, and a radio program received by a tuner section (not shown) Can be listened to or recorded on a recordable medium, and various information relating to reproduction and reception obtained from the various recording media and the tuner unit can be displayed via the display unit 8. .

(2) Main Function Button Group As shown in FIG. 2, the mini component 1 has a main function button group 19 that is an operation button on the top operation panel unit 4, and according to the operation of the main function button group 19 by the user. Various processes are executed. Here, the main function button group 19 of the top operation panel unit 4 includes a main power button 19A, playback mode switching buttons 19B and 19C, and a cassette eject button 19D.

  As shown in FIG. 3, the mini component 1 has a main function button group 20 that is an operation button on the front operation panel unit 2, and executes various processes according to the operation of the main function button group 20 by the user. It is made like that. Here, the main function button group 20 of the front operation panel 2 includes an MD playback / pause button 20A, a CD playback / pause button 20B, a tape playback / pause button 20C, a tuner band switching button 20D, A cancel button 20E, an MD recording button 20F, an MD eject button 20G, a preset button 20I, a cancel button 20J, a menu button 20K, a skip button 20L, a volume adjustment dial 20N, and a CD eject button 20P. Has been. Hereinafter, the various processes will be briefly described.

  In the mini component 1, when the main power button 19A (FIG. 2) is operated, the main power source in the mini component 1 is switched on / off.

  In the mini component 1, the operation mode is set to the MD playback mode in accordance with the operation of the MD playback / pause button 20A (FIG. 3) by the user, and the playback processing and pause processing of the MD inserted into the MD insertion slot 5 are performed. Has been made to do. Further, the mini component 1 is configured to perform the music selection of the MD stored music according to the operation of the skip button 20L and the extraction process of the MD insertion slot 5 according to the operation of the MD eject button 20G.

  Similarly, in the mini component 1, the operation mode is switched to the CD playback mode in accordance with the user's operation of the CD playback / pause button 20B, and the playback processing and pause processing of the CD inserted in the MD insertion slot 5 are performed. Has been made. Further, the mini component 1 is configured to perform selection of the CD stored music corresponding to the skip button 20L and extraction processing of the CD insertion slot 6 corresponding to the operation of the CD eject button 20P.

  Further, in the mini component 1, the operation mode is switched to the tape reproduction mode in accordance with the operation of the tape reproduction / pause button 20C by the user, and the reproduction process and the pause process of the cassette tape stored in the cassette tape storage unit 9 are performed. Has been made. Further, in the mini component 1, the playback mode switching process according to the operation of the playback mode switching buttons 19B and 19C (FIG. 2), the selection of the music stored in the cassette tape according to the skip button 20L (FIG. 3), and the recording button (not shown) A dubbing process or a recording process corresponding to the operation and a cassette tape storage unit 9 opening operation process corresponding to the operation of the cassette eject button 19D (FIG. 2) are performed.

  Further, in the mini component 1, the operation mode is switched to the radio reception mode in accordance with the operation of the tuner band switching button 20D (FIG. 3) by the user, and the radio program reception process is executed, and the reception frequency band is switched to AM or PM. A band selection process is performed. Further, the mini component 1 executes a channel setting process for a channel in which the reception frequency according to the operation of the preset button 20I by the user is set in advance, and a process for changing the reception frequency according to the operation of the skip button 20L. Has been made.

  Also, in the mini component 1, during the above-described reproduction processing for the MD, CD, cassette tape or reception processing of the radio program, the volume adjustment according to the operation of the volume adjustment dial 20N by the user and the operation according to the operation of the stop button 20E Playback or reception cancellation processing is executed.

  Further, in the mini component 1, in accordance with the operation of the MD recording button 20F by the user, the music information recorded on the CD or the cassette tape is recorded on the MD inserted in the MD insertion slot 5, or the received radio program is Recording processing for recording on the MD is executed.

  Further, in the mini component 1, when the operation mode is switched to the MD editing mode according to the operation of the menu button 20K by the user and an editing menu such as erasing or combining is displayed on the display unit 8, the operation of the preset button 20I and the menu button 20K is performed. The editing menu is determined according to the button, or the MD editing mode is canceled according to the operation of the cancel button 20J.

  In this manner, in the mini component 1, most of the operations related to the use of the mini component 1 can be performed by the main function button groups 19 and 20 in the top operation panel 4 and the front operation panel 2.

(3) Openable panel portion In the mini component 1, as shown in FIG. 4, it is stored in the lower part of the front operation panel portion 2 in a closed state during normal use (FIG. 1), and in an open state when used. An openable panel portion 30 having a cross section is provided.

(3-1) Sub-Function Button Group In the mini component 1, a sub-function button group 70 is provided on the openable panel unit 30 (FIG. 4), and various processes are executed by operating the sub-function button group 70 by the user. Has been made. Here, as shown in FIG. 5, the sub-function button group 70 includes a recording mode button 70A, a compression mode button 70B, a function button 70C, a PC mode button 70D, a time function button 70E, an alarm button 70F, and a time. It is composed of an alignment button 70G, a sleep timer button 70H, and a standby button 70I. Hereinafter, the contents of the processing will be briefly described.

  In the mini component 1, when the recording mode selection state is set in accordance with the user's operation of the recording mode button 70A, MD, MDLP (Mini Disc Long Play mode) 2, MDLP4, etc. are selected in accordance with the operation of the compression mode button 70B. Recording modes are sequentially selected, and the recording mode selected by the compression mode button 70B is finally determined according to the re-operation of the recording mode button 70A.

  In the mini component 1, when the user switches to the PC mode selection state according to the operation of the function button 70C by the user, the operation mode is changed to the PC mode according to the operation of the PC mode button 70D, and the PC mode such as playback from the PC is sequentially performed. The personal computer mode selected by the PC mode button 70D is finally determined in response to the selection and re-operation of the function button 70C.

  In the mini component 1, when the user switches to the time function selection state according to the operation of the time function button 70E by the user, the operation mode is set to the alarm mode according to the operation of the alarm button 70F, the time adjustment button 70G, and the sleep timer button 70H. When switching to the time adjustment mode and the sleep timer mode, the set time in each mode is selected according to the re-operation of the time function button 70E, and the set time is finally determined according to the operation of the standby button 70I. Has been made.

  In this way, in the minicomponent 1, the sub-function button group 70 that is relatively infrequently used is mounted on the openable / closable panel section 30, and the open / close-type panel section 30 is closed when not in use and the sub-function button group 70 is closed. By hiding, the button configuration exposed on the surface of the mini component 1 can be limited to the main function button groups 19 and 20, and the operability of the buttons for the user can be improved.

(3-2) Configuration of Opening / Closing Panel Unit In FIG. 6, reference numeral 30 denotes an opening / closing panel unit in a closed state as a whole, and includes a panel storage case unit 31 and a panel unit 32.

  The panel portion 32 is provided with a panel exposed plate portion 54 that is a vertical surface when in the closed state, a panel exposed plate body portion 54C having a rectangular plate shape, an upper panel exposed plate upper edge portion 54D, It is comprised by the panel exposed board side edge part 54E of both ends.

  Here, the surface of the panel exposed plate portion 54 facing the panel storage case portion 31 is a panel exposed plate back surface 54B, the facing surface is the panel exposed plate front surface 54A, and the direction facing the panel exposed plate back surface 54B is the rearward direction, In the following description, the direction in which the panel exposed plate front surface 54A faces is the front direction, the right side is the right direction and the left side is the left direction when the user faces the panel exposed plate front surface 54A.

  In the panel portion 32, a rotating shaft portion 53 is formed on the panel exposed plate back surface 54B side at both lower ends of the panel exposed plate side edge portion 54E.

  On the other hand, the panel storage case portion 31 includes a ¼ cylindrical case main body portion 41 having a ¼ circular case side surface portion 41 </ b> B, and a rectangular case upper edge portion 42. Then, the front portion is opened to form a cavity, and the panel portion 32 can be accommodated in the cavity portion.

  In this panel storage case portion 31, a rotating shaft holding portion 43 is provided below the case side surface end surface 41BA, which is the front end surface of the case side surface portion 41B, and the rotating shaft holding portion 43 has a circular shape penetrating in the left-right direction. A through hole 43A is formed.

  And the panel storage case part 31 can be mounted | worn with the said panel part 32 by engaging the rotating shaft part 53 of the panel part 32 from the inner side of the through-hole 43A of the rotating shaft holding | maintenance part 43. FIG. As a result, in the panel storage case portion 31, the panel portion 32 can be rotatably held with the rotating shaft portion 53 as a fulcrum, and the panel portion 32 is opened or closed by a rotating operation. The button group 70 can be stored.

  As shown in FIG. 7, in the openable and closable panel portion 30 in the open state, the triangular columnar column portion 51 whose side surface is a right-angled isosceles triangle is provided on the panel exposed plate back surface 54B side of the panel exposed plate portion 54 of the panel portion 32. Is provided. When the column portion 51 is in the open state, the post direction is open and hollow, and the panel operation surface portion 51A formed at an angle of 45 degrees with respect to the panel exposed plate portion 54 is orthogonal to the panel operation surface 51A. And a panel side face 51B having a right isosceles triangle shape.

  A plurality of through-holes 52 are formed in the panel operation surface portion 51A, and a mounting button portion 33 in which the sub-function button group 70 is integrated with the hollow portion of the column portion 51 described above is attached. The sub function button group 70 slightly protrudes outward from the through hole 52.

  Thus, in the openable panel portion 30, when the panel portion 32 is in the open state (FIG. 4), the sub function button group 70 mounted on the panel portion 32 is exposed on the surface, thereby allowing the user to the sub function button group 70. Can be used. In the openable panel portion 30, when the sub function button group 70 is not used, the sub function button group 70 is closed and the panel portion 32 is accommodated (FIG. 1), so that the operation buttons are installed. The panel exposure plate front surface 54A not exposed is exposed on the surface, and only the main function buttons 19 and 20 that are frequently used are exposed.

  Furthermore, in the panel part 32 (FIG. 7), the rotating shaft part 53 which protrudes from the panel side part 51B in the vicinity of the vertex which makes 90 degree | times in the pillar part 51 is provided.

  Here, the rotating shaft portion 53 of the panel portion 32 has a shape in which two large and small cylinders are stacked via the same central axis, and the large-diameter rotating shaft of the large-diameter cylindrical portion provided on the panel side surface portion 51B. A portion 53B and a rotation center shaft portion 53A of a small-diameter cylindrical portion superimposed on the large-diameter rotation shaft portion 53B are configured. The rotation center shaft portion 53A is fitted into the through hole 43A of the rotation shaft holding portion 43, while the large diameter rotation shaft portion 53B having a diameter larger than that of the through hole 43A is fitted into the through hole 43A. There is nothing. Thereby, in the openable panel portion 30, a gap can be formed between the panel side surface portion 51B and the case side surface portion 41B by the large-diameter rotating shaft portion 53B. Contact with the case side surface portion 41B is prevented, and a smooth rotation operation can be performed.

  Furthermore, in the panel part 32, the groove-shaped rotating shaft groove part 60 is provided along the rotating shaft part 53 mentioned above in the panel exposed board back surface 54B side of the panel exposed board side edge part 54E. The rotation shaft groove portion 60 can rotate the panel exposed plate side edge portion 54E and the rotation shaft holding portion 43 without being caught, and can perform a smooth rotation operation. Furthermore, in the openable / closable panel part 30, since the protruding part of the rotary shaft holding part 43 can be absorbed by the rotary shaft groove part 60, the gap between the panel storage case part 31 and the panel part 32 can be eliminated, The openable panel portion 30 can be downsized.

  Further, in the openable panel portion 30, a fixed portion 58 made of a magnet on the panel exposed plate back surface 54 </ b> B side at the left and right ends of the panel exposed plate upper edge portion 54 </ b> D, and a portion of the case upper edge portion 42 that faces the fixed portion 58. Are provided with a fixing portion 45 made of a metal plate so that the fixed portion 58 can be fixed to the fixing portion 45 in the closed state.

  Thereby, in the openable panel part 30, the panel part 32 can be fixed to the panel storage case part 31 by a magnetic force in the closed state, and rattling of the panel part 32 caused by vibration can be prevented.

  Further, as shown in FIG. 8, in the openable openable / closable panel portion 30, an angle holding recess 44, which is a rectangular cutout portion, is provided at the front lower portion of the case side surface portion 41B in the panel storage case portion 31, while At the rear end portion of the panel exposed plate portion 54 in the panel portion 32, an angle holding convex portion 54F that is a portion formed larger than the column portion 51 is provided. In the openable panel portion 30, when the panel portion 32 is opened, an angle formed by the vertical direction and the panel exposed plate portion 54 when the rotation shaft portion 53 is used as a fulcrum (hereinafter, this is referred to as an open angle θ). ) Is 90 degrees, the angle holding convex portion 54F is locked to the horizontal side portion of the angle holding concave portion 44, and the panel exposed plate portion 54 is held in a horizontal state.

  As a result, the panel operation surface portion 51A intersects the above-described horizontal panel exposed plate portion 54 at 45 degrees, so that it can be held at an angle of 45 degrees from the horizontal. For this reason, in the openable / closable panel unit 30, the sub-function button group 70 on the panel operation surface unit 51 </ b> A can be easily viewed from obliquely above, so that, for example, even when the minicomponent 1 is at a position lower than the user's line of sight The sub function button group 70 can be easily viewed by the user. Further, in the openable / closable panel unit 30, the angle holding concave portion 44 and the angle holding convex portion 54F described above can be provided only by changing the shapes of the panel portion 32 and the panel storage case portion 31, so that the angle of the panel portion 32 can be changed. No special parts are required for holding, and a simple configuration can be achieved.

  In this manner, in the minicomponent 1, the openable panel portion 30 is incorporated, and the panel portion 32 can be opened and closed by a rotating operation with the rotating shaft portion 53 as a fulcrum. Thereby, in the closed state, the mini component 1 exposes the panel exposed surface 54A of the panel portion 32 on the same surface as a part of the front operation panel portion 2 without protruding from the peripheral surface (FIG. 1). In the open state of the part 32, the sub function button group 70 mounted on the panel part 32 is exposed (FIG. 4).

(3-3) Opening Operation of Opening / Closing Panel Unit In the opening / closing panel unit 30, a finger hooking unit 56 (a semicircular cut-out part on the panel exposed plate back surface 54B side at the right end of the panel exposed plate side edge 54E) FIG. 7) is provided. On the other hand, the mini component 1 is provided with a recess (not shown) in a portion adjacent to the finger hook portion 56 when the openable panel portion 30 is closed. Therefore, the user inserts a finger into the finger hook portion 56 from the concave portion in the closed state, and moves the finger forward with the finger hooked on the finger hook portion 56, thereby reducing the panel portion 32. It can be easily opened by force. In addition to the finger, the user may open the panel unit 32 by hooking a familiar tool such as a hook or a pencil on the finger hook unit 56.

  Here, since the finger hook portion 56 is provided at the right end portion of the panel exposed plate side edge portion 54E, the CD insertion slot 6 (FIG. 1) provided at the upper portion of the openable panel portion 30 is pulled out. Even in such a case, the user can insert a finger from the right side of the finger hook portion 56 without causing the CD insertion slot 6 to become an obstacle, and the panel portion 32 can be easily opened. . Further, since the finger hook portion 56 is formed without cutting out the panel exposed plate front surface 54A side, the appearance from the front direction is not affected.

  In this way, in the openable panel portion 30, by providing the finger hook portion 56, the user can open the panel portion 32 with a simple operation by hooking the finger on the finger hook portion 56. ing.

(3-4) Closing operation of the openable / closable panel unit In addition to such a configuration, the openable / closable panel unit 30 of the present invention, as shown in FIG. When the opening angle θ formed by the panel exposed plate portion 54 and the vertical line VL becomes 27 degrees with the rotation shaft portion 53 as a fulcrum, the weight balance between the front direction and the rear direction of the entire panel portion 32 is balanced. After reaching the equilibrium angle θ ′, the panel portion 32 is automatically drawn into the panel storage case portion 31 thereafter.

(3-4-1) Shape of Panel Part In the panel part 32 in the present embodiment, the predetermined equilibrium angle θ ′ is set by selecting the weight distribution in the shape of the panel part 32.

  As shown in FIG. 10A, if the panel part 32 is considered as a panel part 32a composed of a panel exposed plate body part 54C and a rotating shaft part 53, the center of gravity Ga of the panel part 32a is the midpoint of the four sides. Are in a closed state where the open angle θ is 0 degree, which is the equilibrium angle θ′a in the panel portion 32a. Therefore, even when the panel portion 32a is closed from the open state where the open angle θ is 90 degrees, the center of gravity Ga passes through the rotary shaft portion 53 until the open angle θ becomes 0 degrees and becomes the closed state. Since it is located forward of the vertical line VL, it falls forward due to its own weight and is pulled back to the open state.

  As shown in FIG. 10B, unlike the panel portion 32a, in the panel portion 32b having a shape in which the column portion 51 is provided in the rearward direction with respect to the panel exposed plate main body portion 54C, the center of gravity Gb of the entire panel portion 32b is It is located inside the column part 51. For this reason, the panel portion 32b is balanced between the open state and the closed state, and at this time, the balance angle θ′b is larger than 0 degree. As a result, when the panel portion 32b is closed from the open state, the center of gravity Gb is positioned on the vertical line VL when the equilibrium angle θ′b is reached, and then the center of gravity Gb is rearward of the vertical line VL. Therefore, even if no force is applied to the panel portion 32b thereafter, the panel portion 32b is tilted rearward due to its own weight and pulled into the panel storage case portion 31.

  As shown in FIG. 10C, in the panel portion 32c having a shape in which the panel exposed plate upper edge portion 54D is provided in addition to the panel portion 32b, the weight balance of the overall shape is the same as that of the panel portion 32b. Heavy in the direction, the center of gravity Gc of the entire panel portion 32c is positioned in front of the center of gravity Gb. Therefore, the panel portion 32c is balanced between the balanced state (FIG. 10B) of the panel portion 32b and the closed state, and the balanced angle θ′c is greater than 0 degrees, It becomes smaller than θ′b. As a result, when the panel portion 32c is closed from the open state, the center of gravity Gc is positioned on the vertical line VL when the equilibrium angle θ′c is reached, and then the center of gravity Gc is rearward of the vertical line. Therefore, even if no force is applied to the panel portion 32c thereafter, the panel portion 32c is tilted rearward due to its own weight and is pulled into the panel storage case portion 31.

  Here, in the panel portion 32c, the lever of the panel exposed plate upper edge portion 54D is provided at the upper end of the panel exposed plate main body portion 54C that is farthest from the center of gravity line GLc at the equilibrium angle θ′c. According to the principle, the position of the center of gravity Gc in the overall shape of the panel portion 32c can be effectively changed to the front direction with respect to the center of gravity Gb, and the balance angle θ′c can be reduced. Further, in the panel portion 32c, the panel exposed plate upper edge portion 54D at such a position is formed, so that the distance D1 between the upper end of the panel exposed plate upper edge portion 54D and the center line GLc is the panel exposed plate. Since the distance is larger than the distance D2 from the upper end of the main body 54C and a load can be applied to a position further away from the center of gravity line GLc, the position of the center of gravity Gc in the overall shape of the panel portion 32c is effectively changed in the forward direction from the center of gravity Gb. Can be made.

  In this way, in the openable panel portion 30, the weight distribution is selected according to the shape of the panel portion 32, and the panel portion 32 is automatically drawn into the panel storage case portion 31 when the panel portion 32 reaches a predetermined equilibrium angle θ ′. It is made like that.

(3-4-2) Mounting Button Unit In the openable panel unit 30 in the present embodiment, in addition to the shape of the panel unit 32 described above, to the panel unit 32 of the sub-function button group 70 in the mounting button unit 33. The equilibrium angle θ ′ = 27 degrees is set by selecting the weight distribution according to the mounting position of the lens.

  As shown in FIG. 5, the attachment button portion 33 attached to the panel portion 32 is provided with a total of nine sub function button groups 70 arranged in two rows. The mounting button portion 33 has five sub-function button groups 70 (E to I) in the forward direction and four sub-function button groups 70 (A to D) in the backward direction with the center line 33A as a boundary. The forward direction is heavy and the backward direction is light. The mounting button section 33 is mounted such that the center line 33A is positioned on the center line GLc (FIG. 10C) of the panel section 32c in a state where no parts are mounted.

  In the panel unit 32, the mounting button unit 33 whose weight distribution is selected according to the position of the sub-function button group 70 is mounted on the panel operation surface unit 51A, whereby the panel unit 32 on which the mounting button unit 33 is mounted. The center of gravity G (FIG. 9) in the whole changes in the front direction from the center of gravity Gc (FIG. 10C), and the equilibrium angle θ ′ = 27 degrees is set.

  Thus, in the panel unit 32, when the panel unit 32 reaches a predetermined equilibrium angle θ ′ = 27 degrees due to the weight distribution based on the shape of the panel unit 32 and the mounting position of the sub-function button group 70. It is automatically drawn into the panel storage case 31.

  As a result, in the openable panel 30, as shown in FIG. 9, when the opened panel 32 is gradually tilted backward, the opening angle θ becomes the balanced angle θ ′ = 27 degrees. Thus, the center of gravity G of the entire panel portion 32 transitions to the rear side from the vertical line VL, and then the panel portion 32 is drawn into the panel storage case portion 31 by its own weight without applying a force. The panel unit 32 can be stored in the panel storage case unit 31 by simply pushing the panel unit 32 to the equilibrium angle θ ′ = 27 degrees.

  Further, since the balance angle θ ′ is selected to be 27 degrees by the weight distribution determined by the shape of the panel unit 32 and the mounting position of the sub-function button group 70, no special parts are required, and a simple configuration Thus, the panel portion 32 can be stored in the panel storage case portion 31.

  Thus, in the openable panel portion 30 of the minicomponent 1 according to the present embodiment, depending on the shape of the panel portion 32 and the mounting position of the sub-function button group 70 in the mounting button portion 33 mounted on the panel portion 32. Since the panel portion 32 is drawn into the panel storage case portion 31 when the opening angle θ becomes 27 degrees due to the determined weight distribution, the user can easily perform the operation by a simple operation by a user with a simple configuration. The panel portion 32 can be stored in the panel storage case portion 31.

(4) Operation and Effect In the above configuration, in the openable panel portion 30 of the present invention, in the shape of the panel portion 32, the column portion 51 and the panel exposed plate upper edge portion 54D with respect to the panel exposed plate main body portion 54C. Since the panel unit 32 is set to a predetermined weight distribution by mounting the sub-function button group 70 at a predetermined position on the panel operation surface 51A, the opening angle θ becomes 27 degrees. The panel part 32 is drawn into the panel storage case part 31.

  As a result, in the panel unit 32, when the overall balance angle θ ′ is set to 27 degrees, and the panel unit 32 is tilted backward, the center of gravity G is reached when the opening angle θ is 27 degrees. Since it moves in the rearward direction from the vertical line VL passing through the rotation shaft portion 53, it is automatically drawn into the case main body portion 41 of the panel storage case portion 31 even if no force is applied thereafter.

  As a result, the openable panel portion 30 does not require a spring and a locking tool as in the prior art, and the panel portion 32 is only operated by the user to close the position of the panel portion 32 to a predetermined opening angle θ = 27 degrees. Since the part 32 is drawn into the panel storage case part 31 by its own weight, the panel part 32 can be stored by a simple operation by the user with a simple configuration.

  Further, since the panel portion 32 is accommodated by its own weight without using a spring in the openable / closable panel portion 30, the rebound caused by the repulsive force in the opening operation direction by the spring is prevented as compared with the conventional method using the spring. Thus, the panel portion 32 can be securely stored in the panel storage case portion 31.

  Further, in the openable panel portion 30, even when the panel portion 32 is rebounded by its own weight, the panel portion 32 is automatically stored in the panel storage case portion 31 again by its own weight. It is possible to prevent the device from being left open.

  Further, in the openable panel portion 30, a fixed portion 58 made of a magnet is provided on the panel exposed plate upper edge portion 54D, and a fixing portion 45 made of metal is provided in a portion of the case upper edge portion 42 that faces the fixed portion 58. By this, the panel part 32 can be attracted | sucked to the panel storage case part 31 by magnetic force, and it can prevent that the said panel part 32 is opened by a vibration in the closed state.

  Further, in the openable panel portion 30, the panel portion 32 can be prevented from rebounding after being pulled into the panel storage case portion 31 by the above-described magnetic attraction, so that the panel portion 32 can be quietly opened and closed. It becomes. Further, in the openable panel portion 30, the fixed portion 58 and the fixed portion 45 slightly protrude from the surroundings, and therefore the impact caused by the pull-in is applied to the fixed portion 58 and the fixed portion 45 made of a magnet and metal. The panel exposure plate upper edge portion 54D and the case upper edge portion 42 can be prevented from being damaged by the impact.

  Further, in the openable / closable panel section 30, by providing a finger hook section 56 that is a semicircular cutout on the panel exposed plate back surface 54B as a hook section, the user can pinch the finger into the finger hook section 56. The panel portion 32 can be easily opened with a minimum force.

  Further, in the openable panel portion 30, the panel portion 32 can be opened by the finger hook portion 56, so that the opening operation property due to the decrease in the elastic force of the spring is compared with the conventional method of biasing in the opening operation direction by the spring. A drop can be prevented, and the durability of the openable panel portion 30 can be improved.

  According to the above configuration, in the openable panel portion 30 of the present invention, the panel portion 32 can be closed and stored in the panel storage case portion 31 with a simple configuration and a simple operation by the user.

(5) Other Embodiments In the above-described embodiment, the balance angle θ ′ is set to 27 degrees, so that the opening angle θ is 27 degrees and the panel storage case section 31 of the panel section 32 is pulled in. However, the present invention is not limited to this, and an arbitrary equilibrium angle θ ′ may be set according to the weight distribution according to the shape of the panel and the mounting position of the parts.

  For example, in the openable / closable panel section 30, the above-described equilibrium angle θ ′ is set to be larger than 27 ° so that the panel section 32 is pulled into the panel storage case section 31 by its own weight at a predetermined angle where the opening angle θ is much larger. Therefore, the panel unit 32 can be stored in the panel storage case unit 31 by a simpler user operation.

  Further, in the openable panel portion 30, the equilibrium angle θ ′ may be made smaller than 27 degrees, and the panel portion 32 may be opened by its own weight only by the user pinching the finger in the finger hook portion 56. Thereby, in addition to the effect mentioned above, the panel part 32 can be opened more easily.

  Further, in the above-described embodiment, the case where the column part 51 is formed in an isosceles triangle shape whose base and vertical sides are equal in the cross section has been described, but the present invention is not limited to this, for example, in a closed state. By making the cross-sectional shape into a right triangle whose base is longer than the vertical side, it is possible to make a shape in which a load can be applied to a position away from the center of gravity line GL. It can be located in the rearward direction compared to the case of a triangle.

  Similarly, by making the cross-sectional shape in the closed state a right triangle whose base is shorter than the vertical side, it is possible to make a shape that allows a load to be applied to a position that is not separated from the center of gravity line GL. The entire center of gravity G can be positioned more forward than in the case of an isosceles triangle.

  Moreover, in the above-mentioned embodiment, although the case where the column part 51 was made to become a triangular prism shape was described, this invention is not restricted to this, What kind of solid shape may be sufficient. For example, various column shapes such as a quadrangular column and a pentagonal column, or an irregular three-dimensional shape may be used, and the above-described effects can be obtained by selecting weight distribution in the shape.

  Further, in the above-described embodiment, the case main body portion 41 has been described as having a quarter cylindrical shape having a quarter-circular side surface, but the present invention is not limited thereto, and the panel portion 32 is not limited thereto. Any solid shape can be used as long as the shape can be stored. Further, without providing the case main body 41, a panel storage space and a rotation shaft holding portion 43 are directly provided in various devices as a panel storage portion, and the rotation shaft portion 53 of the panel portion 32 is directly provided in the various devices. You may make it fit to the said rotating shaft holding | maintenance part 43. FIG.

  Further, in the above-described embodiment, the case where the panel unit 32 is configured to mount the mounting button unit 33 on the panel operation surface unit 51A has been described, but the present invention is not limited thereto, and various types such as a display panel, for example. The mounting component can be mounted at an arbitrary position on the panel unit 32. For example, the panel unit 32 may be configured such that components such as wiring are mounted on the panel exposed plate back surface 54B. At this time, the panel portion 32 can shift the position of the center of gravity G more effectively by mounting the component at a position away from the center of gravity line GL according to the lever principle, and at an arbitrary equilibrium angle θ ′. It can be pulled in.

  Further, in the above-described embodiment, the panel unit 32 is provided with the mounting button that makes the weight balance non-uniform in the front-rear direction by making the number of the sub-function button groups 70 arranged in the front-rear row not equal. Although the case where the portion 33 is mounted has been described, the present invention is not limited to this, and it is sufficient that the center of gravity G of the panel portion 32 as a whole is changed depending on the mounting position of the mounting button portion 33 or the sub function button group 70. For example, by mounting the center line 33A of the mounting button portion 33 with a uniform weight balance in the front-rear direction shifted from the center line GL of the panel portion 32 in the non-part mounted state in the backward or forward direction, You may make it change the gravity center G in the whole panel part 32 of the state in which the mounting | wearing button part 33 was mounted | worn.

  Furthermore, in the above-described embodiment, the angle holding recess 44 of the panel storage case 31 is formed by a rectangular cutout portion having a horizontal side, and the angle holding projection 54F of the panel 32 is held by the horizontal side. However, the present invention is not limited to this, and the panel is changed by changing the shape of the angle holding recess 44 and the angle holding projection 54F. The exposed plate portion 54 may be held at an arbitrary angle.

  Furthermore, in the above-described embodiment, the case where the panel portion 32 is fixed to the panel storage case portion 31 by the fixed portion 58 made of a magnet and the fixing portion 45 made of a metal plate has been described. The fixing is not limited to this, and it may be fixed by a magnetic force, and may be fixed by the fixed portion 58 made of a metal plate and the fixing portion 45 made of a magnet, or by the fixed portion 58 made of a magnet and the fixing portion 45. Anyway.

  Furthermore, in the above-mentioned embodiment, although the case where the panel part 32 was fixed to the panel storage case part 31 by magnetic force was described, this invention is not restricted to this, The to-be-fixed part 58 and the fixing | fixed part 45 are provided. Even if not, the effect of the present invention is not changed. In this case, for example, the above-described rattling due to vibration can be prevented by various processes such as attaching a cushion material such as sponge to the panel exposed plate upper edge portion 54D or the case upper edge portion 42.

  Further, in the above-described embodiment, the case where the panel unit 32 is opened by hooking the finger on the finger hook 56 as the hook is described. However, the present invention is not limited to this. You may make it open operation with tools, such as a hook.

  Furthermore, in the above-described embodiment, the panel exposed plate rear surface 54B side at the panel exposed plate side edge portion 54E of the panel exposed plate portion 54 that is an exposed surface exposed when stored in the panel storage case portion 31 of the panel portion 32. However, the present invention is not limited to this, and can be hooked from the outside between the panel exposed plate portion 54 and the panel storage case portion 31. For example, hooking portions having various predetermined shapes such as a quadrangle and a polygon may be provided. For example, the same effect can be obtained by providing the panel storing case portion 31 with the hook portion and pulling out the panel portion 32 by hooking the panel portion 32 with a finger or tool sandwiched in the hook portion.

  Further, in the above-described embodiment, the case where the openable / closable panel unit 30 is incorporated in the minicomponent 1 has been described. However, the present invention is not limited to this, and audio equipment such as a radio cassette recorder and a video recorder, and video. You may make it incorporate in various electronic devices, such as an apparatus and an air conditioner and a telephone.

  Further, in the above-described embodiment, the rotation shaft portion 53 as the rotation shaft portion, the panel portion 32 as the panel portion, the case main body portion 41 as the storage space forming portion, and the rotation shaft holding as the rotation shaft holding portion. Although the case where the opening / closing type panel unit 30 as the opening / closing type panel device is configured by the unit 43 and the panel storage case unit 31 as the panel storage unit has been described, the present invention is not limited thereto, and various other types are also described. You may make it use the panel part which consists of an apparatus and components, and a panel storage part as an openable-type panel apparatus.

  The openable panel device of the present invention can be widely applied to various electronic devices such as a music recording / reproducing device, a telephone, and an air conditioner.

It is a rough-line perspective view which shows the whole structure of a minicomponent. It is a basic diagram which shows the structure of a top operation panel part. It is a basic diagram which shows the structure of a front operation panel part. It is a basic diagram with which it uses for description of the open state of an opening-and-closing type panel part. It is a basic diagram which shows the structure of a subfunction button group. It is a basic diagram which shows the structure (closed state) of an open / close-type panel part. It is a basic diagram which shows the structure (open state) of an open / close-type panel part. It is a basic diagram which shows an open / close-type panel part (open state). It is an approximate line figure used for explanation of closing operation of a panel part. It is a rough-line sectional drawing with which it uses for description of the relationship between a gravity center and a balance angle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mini component, 2 ... Front operation panel part, 3 ... Speaker, 4 ... Top operation panel part, 30 ... Opening and closing panel part, 31 ... Panel storage case part, 32 ... Panel part, 33 ... ...... Mounting button part 41 ...... Case body part 42 ...... Case upper edge part 43 Rotating shaft holding part 45 ...... Fixing part 51 ...... Column part 51 A ...... Panel operating surface 52 ...... Through hole 53... Rotating shaft 54. Panel exposed plate 54 C. Panel exposed plate main body 54 D. Panel exposed plate upper edge 56 56 Finger hook 58. , 70: Sub function button group.

Claims (5)

A panel portion having a rotation shaft portion serving as a fulcrum during opening and closing operation by rotation;
A storage space forming portion for forming a storage space for the panel portion, and a panel storage portion having a rotation shaft holding portion for holding the rotation shaft portion in a rotatable state.
The opening / closing type panel device is characterized in that the shape of the panel portion is selected so as to be drawn into the storage space forming portion when a predetermined angle is reached with the rotating shaft portion as a fulcrum. The panel section
A predetermined mounting part is attached to the panel part,
The open / close panel device according to claim 1, wherein the weight distribution is selected according to a shape of the panel portion and a mounting position of the mounting component. In the panel section,
The opening / closing type according to claim 1, further comprising a hook portion having a predetermined shape that can be hooked from the outside to an exposed exposed surface even when stored in the panel storage portion. Panel device. A panel portion having a rotation shaft portion serving as a fulcrum during a rotation operation for opening or closing, and a fixed portion for stopping the rotation operation in the closed state;
A storage space forming portion that forms a storage space for the panel portion, a rotary shaft holding portion that holds the rotary shaft portion in a rotatable state, and a panel storage portion that has a fixing portion that fixes the fixed portion by a magnetic force. Prepared,
The opening / closing type panel device is characterized in that the shape of the panel portion is selected so as to be drawn into the storage space forming portion when a predetermined angle is reached with the rotating shaft portion as a fulcrum. In the panel section,
The opening / closing type according to claim 4, further comprising a hook portion having a predetermined shape that can be hooked from the outside to an exposed exposed surface even when stored in the panel storage portion. Panel device.

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