Abstract:
An arrangement of memory-card accommodating portions in a recording and reproducing apparatus includes a plurality of card slots for respectively accommodating memory cards capable of recording and reproducing an audio or image signal disposed adjacent to each other in a mutually overlapping relation, and eject buttons for ejecting the memory cards disposed in individual correspondence with the card slots. A set of at least two of the card slots are arranged so that the memory cards are disposed in parallel with each other.

Description:
BACKGROUND OF THE INVENTION 
     The present invention relates to an arrangement of memory-card accommodating portions in a recording and reproducing apparatus, and more particularly to an arrangement of memory-card accommodating portions having a plurality of card slots for accommodating the memory cards. 
     An electronic apparatus such as audio equipment mounted in a console panel of a vehicle has a card slot for accommodating a memory card, and there is a type of this apparatus in which audio information and image information in the memory card are recordable and reproducible. In another type of this apparatus, a plurality of card slots are provided to allow desired information to be recordable and reproducible from among a greater number of items of information. 
     FIG. 4 is a schematic diagram illustrating the arrangement of card entrance sides of memory-card accommodating portions in the above-described conventional recording and reproducing apparatus, FIG. 4A illustrates in a perspective view one example of arrangement of the memory cards including the aforementioned card slots and eject buttons, and FIG. 4B schematically illustrates another example of arrangement of the memory cards. 
     Referring to FIG. 4A, reference numeral  1  denotes a card receiving frame. A card slot  2  for receiving the memory card (not shown) is formed in the card receiving frame  1 , and is mounted on each printed circuit board  3  provided in this recording and reproducing apparatus. A plurality of card slots  2  are provided in the recording and reproducing apparatus, are disposed adjacent to each other in a vertically aligned state, and are arranged so that the memory cards can be accommodated therein with their entire surface areas opposing each other. To eject the memory cards, eject buttons  4  which are operated by being pressed are provided in individual correspondence with the respective card slots. The eject buttons  4  are disposed adjacent to each other in a vertically aligned state in the vicinities of the respective ends of the mutually opposing sides of the card slots  2 . 
     In FIG. 4B, to eject the card in a card slot  2 A, one eject button  5 A is disposed in the vicinity of one end side of each of card receiving frames  1 A (card slot  2 A) and  1 B (card slot  2 B) so as to commonly correspond to each of these card slots. Meanwhile, another eject button  5 B is disposed in the vicinity of the other end side to eject the card in the card slot  2 B. 
     In the apparatus in which, as shown in FIG. 4A, the card slots are arranged in a vertically aligned state, and the eject buttons are arranged in a vertically aligned state in the vicinity of each end in the vicinities of the respective ends of the mutually opposing sides of the card slots, since the eject buttons are located at positions which are close to each other, there has been a possibility of another eject button being pressed erroneously at the same time when a desired ejecting operation is performed, so that this arrangement has not been desirable. 
     In addition, in the apparatus in which, as shown in FIG. 4B, the card slots are arranged in the same way as described above, but the eject buttons are respectively disposed in the vicinities of one end side and the other end side of the card slots and one eject button is positioned so as to commonly correspond to the card slots, since the correspondence with the individual card slots is not necessarily clear, there has been a possibility of erroneous operation, so that this arrangement has not been desirable, either. 
     SUMMARY OF THE INVENTION 
     To overcome the above-described problems, an object of the invention is to render the operational efficiency of memory cards satisfactory by improving the arrangement o the memory-card accommodating portions in the recording and reproducing apparatus. 
     To attain the above object, in accordance with aspect  1  of the invention, there is provided an arrangement of memory-card accommodating portions in a recording and reproducing apparatus in which a plurality of card slots for respectively accommodating memory cards are disposed adjacent to each other in a mutually overlapping relation, and eject. buttons for ejecting the memory cards are disposed in individual correspondence with the card slots, characterized in that a set of at least two of the card slots are arranged such that the memory cards are disposed in parallel with each other and are accommodated in a state in which at least partial areas of surfaces of the memory cards oppose each other, and the eject buttons are arranged at positions which are respectively adjacent to the plurality of card slots in a unique manner and which do not overlap in a direction parallel to the surface of the inserted memory card, in order to prevent the eject buttons from being disposed close to each other. 
     In the invention according to aspect  2 , the card slots according to aspect  1  for forming the set are arranged such that the memory cards are accommodated in a state in which only partial areas of the surfaces of the memory cards oppose each other, in order to prevent the eject buttons from being disposed close to each other. 
     In the invention according to aspect  3 , the card slots according to aspect  1  for forming the set are arranged such that the memory cards are accommodated in a state in which entire areas of the surfaces of the memory cards oppose each other, and the eject buttons are respectively disposed in vicinities of one end side and another other end side of the card slots in a uniquely adjacent fashion, in order to prevent the eject buttons from being disposed close to each other. 
     In the invention according to aspect  4 , the eject buttons according to aspect  3  are respectively disposed on sides which are away from mutually opposing sides of the card slots in correspondence with the card slots which form the set, in order to prevent the eject buttons from being disposed close to each other. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is an exploded perspective view illustrating memory-card accommodating portioins a recording and reproducing apparatus in accordance with an embodiment of the invention; 
     FIG. 2 is schematic diagram reillustrating the arrangement of the memory-card accommodating portions shown in FIG. 1 as the embodiment of the invention; 
     FIGS. 3 a  and  3   b  are schematic diagrams illustrating another arrangement of the memory-card accommodating portions in accordance with other embodiment of the invention; and 
     FIGS. 4 a  and  4   b  are schematic diagrams illustrating an example of the arrangement of card entrance sides of memory-card accommodating portions in a conventional recording and reproducing apparatus. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring now to the accompanying drawings, a description will be given of a preferred embodiment of the invention. FIG. 1 is a partly fragmentary exploded perspective view illustrating memory-card accommodating portions in a recording and reproducing apparatus in accordance with an embodiment of the invention. In the drawing, reference numeral  10  denotes a casing of the recording and reproducing apparatus which is mountable in a console panel of a vehicle. Numeral  11  denotes an operation panel attached to the front surface of the casing  10 , and if an unillustrated escutcheon is opened, the operation panel  11  is exposed to allow a memory card, which will be described later, to be loaded into or removed from the operation panel  11 . Numeral  12  denotes a printed circuit board, and the printed circuit boards  12  are disposed in parallel with each other with an interval provided between upper and lower printed circuit boards, and are attached to the casing  10 . Numeral  13  denotes a memory-card accommodating portion. The memory-card accommodating portion  13  has an eject button  15  in a card-receiving frame  14 , and two memory-card accommodating portions  13  are mounted on a lower surface of each printed circuit board  12 . The eject button  15  ejects a memory card MC by the operation of pressing the eject button  15 . 
     The card receiving frame  14  forms a card slot  16  in cooperation with the printed circuit board  12  to allow the memory card MC to be inserted in the card slot  16 . A set of two vertically adjacent card receiving frames  14  (card slots  16 ) are arranged such that the memory cards MC in the respectively inserted state are disposed in parallel with each other and are accommodated in a state in which at least partial areas of the surfaces of the memory cards MC oppose each other. In the embodiment illustrated in the drawing, the memory cards are arranged such that they are accommodated in the state in which only partial areas of the surfaces of the memory cards MC oppose each other. 
     The eject buttons  15  are arranged at positions which are respectively adjacent to the card slots  16  in a unique manner and which do not overlap in a direction parallel to the surface of the inserted memory card MC, and the eject buttons  15  are made to correspond to the respective card slots  16  individually. In the embodiment illustrated in the drawing, the interval between the left end of the eject button  15  and the right end of the adjacent card slot  16  is set to be identical for the respective adjacent pairs. 
     Reference numeral  17  denotes a return spring for returning the eject button  15  to its home position. The return spring  17  is formed of a compression spring and is disposed in the inner space of the card-receiving frame  14 . An arm  18  extends from a rear end of the eject button  15 , and an eject lever  19  is pivotally attached to its distal end. The eject lever  19  is pivotally supported on a fulcrum  20 , and when the eject button  15  operated by being pressed, a rear end of the memory card MC is pressed, thereby ejecting the memory card MC. 
     The operation panel  11  has a card receiving portion  21  for receiving a front end portion of the card receiving frame  14  and an eject button portion  22  for receiving the eject button  15  in a state in which this recording and reproducing apparatus has been assembled. Numeral  23  denotes a card indicator, and the card indicator  23  is provided in correspondence with each card-receiving portion  21 . When the memory card MC is loaded in the card receiving portion  21 , the card indicator  23  is lit for display, and during recording or reproduction the card indicator  23  flashes for display. 
     In the above-described construction, when the memory card MC is inserted into the card receiving portion  21  (card slot  16 ) and is pushed in up to a predetermined position, recording or reproduction using the memory card MC becomes possible. Then, if the eject button  15  in the eject button portion  22  is operated by being pressed, the memory card MC is ejected. Since the eject buttons  15  are sufficiently spaced apart from each other as shown in the drawing, it is made difficult for the operator&#39;s finger, which pressed one eject button  15 , to touch another eject button  15 . Thus, even if the memory card MC is loaded in an adjacent card slot  16 , there is no possibility of this memory card MC being ejected by mistake. 
     FIG. 2 is a schematic diagram illustrating the arrangement of the memory-card accommodating portions in accordance with the embodiment of the invention. In FIG. 2, the same arrangement as the one shown in FIG. 1 is illustrated. To illustrate the embodiments in FIGS. 2 and 3, the card slots  16  and the eject buttons  15  in FIG. 1 are used. In FIG. 2, reference character A is suffixed to the reference numerals of the parts on the upper side and reference character B to the reference numerals of the parts on the lower side for convenience′ sake. 
     FIG. 3 is a schematic diagram illustrating the arrangement of the memory-card accommodating portions in accordance with another embodiment of the invention. In the drawing, card slots  16 E and  16 F, which form a pair in a vertical direction, are arranged so as to be accommodated in a state in which entire areas of the surfaces of the memory cards oppose each other. In FIG. 3A, an eject buttons  15 E is disposed on a left-end side of the card slot  16 E, while an eject button  15 F is disposed on a right-end side of the card slot  16 F, the eject buttons  15 E and  15 F being thus arranged in a uniquely adjacent fashion. Accordingly, in the same way as in FIG. 1 or  2 , there is no possibility of another memory card MC being ejected by mistake in the ejecting operation. 
     In FIG. 3B, one eject button  15 G is disposed uniquely adjacent to a left end of an upper side of a card slot  16 G, while an eject button  15 H is disposed uniquely adjacent to a right end of a lower side of a card slot  16 H. Accordingly, in the same way as in FIG. 1 or  2 , there is no possibility of another memory card MC being ejected by mistake in the ejecting operation. 
     It should be noted that although, in the above-described embodiments, a description has been given of the arrangement in which the pair of card receiving frames  14  are respectively mounted on the two printed circuit boards  12 , a similar function can be obtained if two memory cards MC are made insertable in two upper and lower stages into the card receiving frame mounted on a single printed circuit board  12 , and the slots and the eject buttons are provided in the operation panel  11 . 
     In addition, although, in the above-described embodiments, a description has been given of the case where the pair of card receiving frames  14  are arranged in a vertically overlapping manner, the invention is applicable to a case where they are arranged in a horizontally overlapping manner. 
     In accordance with the invention, the card slots which together form a set are arranged such that the memory cards are disposed in parallel with each other and are accommodated in a state in which at least partial areas of surfaces of the memory cards oppose each other, and the eject buttons are arranged at positions which are respectively adjacent to the card slots in a unique manner and which do not overlap in a direction parallel to the surface of the inserted memory card. Hence, there is no possibility of another eject button being operated by mistake when a required eject button is operated.