JP3903013B2 - Electronics - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic device having a loading lid that covers a card slot. More specifically, the present invention relates to a card error by adopting a structure in which a lid is not closed when a memory card is not loaded in an appropriate position in the card slot. The present invention relates to an electronic device having a loading lid structure that prevents insertion.
[0002]
[Prior art]
In an electronic device such as a digital camera, a method using a memory card is generally used to store and read data. This memory card is detachably loaded in a card slot, and exchanges data with the electronic device main body via the card slot.
[0003]
When using the method of loading the memory card into the card slot as described above, if the memory card is not loaded into the card slot at an appropriate position, a contact failure between the memory card and the connector provided in the card slot occurs. If data is exchanged in such a state, there may be a problem that the data being accessed stored in the memory card is destroyed, or all the data already recorded on the memory card is destroyed. is there.
[0004]
In order to prevent such a problem, in Patent Document 1, a protrusion is provided at one position of the lid portion that opens and closes the card slot, and when the memory card is not loaded in an appropriate position in the card slot, the protrusion is at the center of the memory card. An electronic device having a safety function that allows a user to recognize that a memory card is not properly loaded in a card slot by preventing the lid from closing by hitting the card is disclosed.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-75159
[Problems to be solved by the invention]
However, in the electronic device of Patent Document 1, since the protrusion is configured to contact only one portion of the card center portion, the lid portion is formed when the memory card is loaded in a state inclined with respect to the card slot. May be closed. In this state, the memory card and the connector are in poor contact, and the user cannot recognize that the memory card is not properly inserted in the card slot. There is a risk that data will be exchanged, causing problems such as data destruction.
[0007]
The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic device having a loading lid structure that does not close even when a memory card is loaded in a tilted state in a card slot. And
[0008]
[Means for Solving the Problems]
In order to achieve the above object, an electronic device according to the present invention comprises a card receiving means for receiving a memory card at an appropriate loading position when a predetermined amount of the memory card is inserted from one end side through the card slot, and the card slot. Equipped with a loading lid that can be opened and closed between a covering closed position and an opening position that exposes the card slot, and the loading lid is locked at the locked position when the loading lid moved to the closed position is further slid A pair of protrusions are formed on the inner surface of the loading lid, and the sliding direction of the loading lid from the closed position to the lock position is a direction perpendicular to the front and back surfaces of the flat memory card, and the amount of memory card insertion is When the loading lid is slid from the closed position to the locked position in a state where the amount is less than the predetermined amount, Characterized in that so as to abut against one of said projections on either even without.
[0009]
In addition, the card receiving means is fixed to one surface of the circuit board, and a deformation preventing member for receiving the other surface of the circuit board is provided so that the circuit board is not deformed by the pressing force when the protrusion comes into contact. It is preferable.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an appearance of a digital camera to which the present invention is applied. On the front surface of the main body 3 of the digital camera 2, a lens barrel 5, a finder 8, and a strobe light emitting unit 4 incorporating a photographing lens 6 and a lens barrier 7 are provided. A release button 9 is provided on the upper surface of the main body 3. On the back side of the main body 3, a power switch (not shown), an LCD panel for image display, and the like are provided.
[0011]
A card loading lid 10 is attached to one side surface of the main body 3 so as to be openable and closable between an open position for opening the card slot 12 and a closed position for covering the card slot 12. The card 14 is detachably loaded. The memory card 14 is provided with a contact plate 15, and exchanges data with the main body 3 by making contact with the metal contact piece 13 (see FIG. 2) in the card slot 12. When the memory card 14 is loaded to an appropriate position, the card slot 12 locks the memory card 14 by a lock mechanism (not shown). When the memory card 14 is removed, the lock mechanism is released by pushing the rear end of the memory card 14 in the stored state, and the memory card 14 moves to the ejection position of the card slot 12. The user can take out the memory card 14.
[0012]
FIG. 2 is a cross-sectional view of the loading lid structure of the present invention cut in the vertical direction. The card loading lid 10 is slidably attached to the hinge plate 20, and the tip of the hinge plate 20 is rotatably supported by a hinge shaft 22. Further, the hinge plate 20 is spring-biased in the opening direction by a coil spring 22 attached to the hinge shaft 22.
[0013]
Further, on the back surface of the card loading lid 10, when the memory card 14 is not loaded in the card slot 12 to the proper position, the card loading lid 10 is moved to the both end positions of the memory card 14 by the sliding operation in the arrow direction in the figure. Two protrusions 16 and 17 (see FIG. 3) are provided for contacting and preventing the sliding operation. The appropriate position is used to indicate a position where the contact plate 15 provided in the memory card 14 and the metal contact piece 13 provided in the card slot 12 come into contact with each other. Furthermore, a lid lock claw 24 for locking the card loading lid 10 to the main body 3 is provided on the back surface of the card loading lid 10 so that the card loading lid 10 in the closed position is not opened. When the lid locking claw 24 is engaged with the locking piece 26 of the main body 3 by the sliding operation, the card loading lid 10 is locked. Thereby, the accident that the card loading lid 10 opens unexpectedly can be prevented.
[0014]
A card slot 12 is attached to the main body 3, and a connector board 30 to which a connector (not shown) and an access circuit 42 (see FIG. 5) are attached is in contact with and attached to the card slot 12. Further, a lid open detection switch 28 is provided for detecting that the card loading lid 10 is not locked. When the card loading lid 10 is not locked, the power supply 44 (see FIG. 5) of the main body 3 is turned on. It is controlled not to.
[0015]
Further, when the protrusions 16 and 17 abut on the memory card 14 on the main body 3, a pressing force is applied to the card slot 12 and the connector board 30 through the memory card 14 by the pressing of the protrusions 16 and 17. A deformation preventing member 32 for supporting the card slot 12 and the connector substrate 30 is provided so that the connector substrate 30 is not deformed.
[0016]
FIG. 3 is a cross-sectional view of the loading lid structure of the present invention cut in the horizontal direction. The card loading lid 10 is provided with two protrusions 16 and 17, and is configured to abut against both ends of the memory card 14 when the memory card 14 is not loaded in the card slot 12 at an appropriate position. . With this configuration, even when the memory card 14 is loaded into the card slot 12 at an angle, one of the protrusions 16 and 17 always comes into contact with the memory card 14, so that the card loading lid 10 is not closed. Absent.
[0017]
FIG. 4 is an explanatory view showing a state in which the memory card is loaded in the card slot to the proper position. When the card loading lid 10 is closed and slid in the direction of the arrow in the figure, the lid locking claw 24 provided on the card loading lid 10 meshes with the locking piece 26 of the main body 3, whereby the card loading lid 10 is locked. It becomes. During this sliding movement, the projections 16 and 17 do not come into contact with the memory card 14.
[0018]
Further, when the card loading lid 10 is locked, the lid locking claw 24 is locked by the locking piece 26 and simultaneously presses the protrusion 28 a of the lid open detection switch 28. When the projection 28a is pressed, the lid open detection switch 28 is turned off.
[0019]
FIG. 5 is an explanatory diagram showing a state where the memory card is not loaded in the card slot to the proper position. In this state, the contact between the contact plate 15 provided in the memory card 14 and the metal contact piece 13 provided in the card slot 12 is not reliable and unstable. When the card loading lid 10 is slid in the direction of the arrow in this state, the protrusions 16 and 17 come into contact with the memory card 14 to prevent the sliding operation. Thus, since the card loading lid 10 cannot be locked, the user can recognize that the memory card 14 is not properly loaded in the card slot 12.
[0020]
In addition, the pressing force of the protrusions 16 and 17 applies a pressing force to the card slot 12 and the connector board 30 through the memory card 14, but the connector board 30 is supported by contacting the deformation preventing member 32. Even if pressure is applied, the card slot 12 and the connector board 30 are not deformed.
[0021]
Further, when the sliding operation of the card loading lid 10 is prevented, the lid lock claw 24 does not press the projection 28a of the lid open detection switch 28, so that the lid open detection switch 28 remains ON.
[0022]
FIG. 6 is a block diagram showing the internal configuration of the digital camera embodying the present invention. The imaging unit 34 includes a CCD image sensor, an A / D converter, and the like, and is configured around members necessary for capturing a subject image. The image data generated by the imaging unit 34 is sequentially input to the image data processing circuit 36. The image data processing circuit 36 performs various correction processes on the input image data, and then the image data is input to the CPU 40.
[0023]
In response to an instruction from the CPU 40, the access circuit 42 performs signal processing such as data writing to the memory card 14 and data reading from the memory card 14 via the card slot 12. The CPU 40 is further connected to a lid open detection switch 28 and a power supply 44. The CPU 40 turns on the power supply 44 when the lid open detection switch 28 is OFF, and the lid open detection switch 28 is ON. The power supply 44 is sometimes not turned on.
[0024]
The operation of the above configuration will be described. When the user loads the memory card 14 into the card slot 12 at an appropriate position and locks the card loading lid 10, the lid open detection switch 28 is turned off. When the lid open detection switch 28 is turned off, the CPU 40 determines that the power supply 44 may be turned on. Here, when the user operates the power switch, the power supply 44 is turned on.
[0025]
On the other hand, when the memory card 14 is not loaded in the card slot 12 at the proper position, the card loading lid 10 cannot be closed, and the lid open detection switch remains on. If the lid open detection switch 28 is ON, the CPU 40 determines that the power supply 44 should not be turned ON. Here, even if the user operates the power switch, the power supply 44 is not turned on. With this configuration, the power is not turned on when the memory card 14 is not loaded into the card slot 12 at the proper position, so that malfunction such as data destruction caused by poor contact between the memory card and the connector can be prevented. Can be prevented.
[0026]
In the above embodiment, the power is not turned on when the lid open detection switch is ON. Instead of this configuration, the access circuit is turned off when the lid open detection switch is ON. It can also be configured as follows. In this way, even when the power is turned on, no data is transferred to the memory card, and malfunctions such as data destruction due to poor contact between the memory card and the connector can be prevented.
[0027]
In the above embodiment, a digital camera is described as an example of an electronic apparatus that implements the present invention. However, the present invention is not limited to this, and for example, a mobile phone, a notebook personal computer. Any electronic device that writes or reads data to or from a memory card, such as an information terminal such as a PDA or a portable music player.
[0028]
【The invention's effect】
As described above, according to the electronic device of the present invention, when the memory card is not loaded in the card slot to the proper position, the card loading lid is brought into contact with the vicinity of both end positions by the sliding operation to the lock position. Due to a pair of protrusions that prevent sliding movement, the card loading lid does not close even when the memory card is loaded in a tilted state in the card slot, resulting in poor contact between the memory card and the connector Problems such as data destruction can be prevented.
[0029]
In addition, since a deformation prevention member that receives the other surface of the connector board is provided so that the connector board is not deformed by the pressing force when the protrusion provided on the card loading lid comes into contact, an excessive pressing force is applied to the connector board. It is possible to prevent the connector substrate from being deformed by the addition of.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external appearance of a digital camera to which the present invention is applied.
FIG. 2 is a cross-sectional view of the loading lid structure of the present invention cut in the vertical direction.
FIG. 3 is a cross-sectional view of the loading lid structure of the present invention cut in the horizontal direction.
FIG. 4 is an explanatory diagram showing a state in which a memory card is loaded in an appropriate position in a card slot.
FIG. 5 is an explanatory diagram showing a state in which a memory card is not loaded in the card slot to an appropriate position.
FIG. 6 is a block diagram showing an internal configuration of a digital camera embodying the present invention.
[Explanation of symbols]
2 Digital Camera 3 Main Body 10 Card Loading Cover 12 Card Slot 14 Memory Card 28 Cover Opening Detection Switch 32 Deformation Prevention Member 40 CPU
44 Power supply

Claims (2)

A card receiving means for receiving the memory card in a proper loading position when a predetermined amount of the memory card is inserted from one end through the card slot, and a closed position that covers the card slot and an open position that exposes the card slot. In an electronic device comprising a loading lid that can be freely opened and closed, and when the loading lid that has been moved to the closed position is further slid, the loading lid is locked in the locked position.
A pair of protrusions are formed on the inner surface of the loading lid, and the sliding direction of the loading lid from the closed position to the lock position is a direction perpendicular to the front and back surfaces of the flat memory card, and the amount of memory card insertion is When the loading lid is slid from the closed position to the locked position in a state where the amount is less than the predetermined amount, one of the protrusions is brought into contact with at least one of both ends in the width direction of the other end of the memory card. And electronic equipment. The card receiving means is fixed to one surface of the circuit board, and a deformation preventing member for receiving the other surface of the circuit board is provided so that the circuit board is not deformed by the pressing force when the protrusion comes into contact. The electronic device according to claim 1.

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