JP2001217564A - Electronics - Google Patents

Abstract

(57) [Problem] To provide a drip-proof and dust-proof property when the electric switch for detecting the open / closed state of the lid is linked to the movement of a member provided on the back lid side, but the number of parts increases. SOLUTION: A lid 2 which can be opened and closed with respect to a device body 1.
And lock mechanisms 6 to 8 that operate in a locked state in which the lid can be locked at the closed position and an unlocked state in which the lock can be released, and detection means 12 to 15 for detecting the state of the lock mechanism. In the electronic device, holding mechanisms 4 and 5 are provided which engage with the lock mechanism and hold the lock mechanism in an unlocked state. A lock mechanism and a holding mechanism are arranged on the side and a detecting means is arranged inside the device, and an interlocking pin 11 is fitted to the through hole 1a formed in the partition wall so as to be able to move in the axial direction substantially in close contact. The operation of the lock mechanism is transmitted to the detecting means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device having a drip-proof and dust-proof function, and more particularly, to an electronic device having a drip-proof and dust-proof function around a lock mechanism of a lid that can be opened and closed with respect to the main body of the device. is there.

[0002]

2. Description of the Related Art A drip-proof and dust-proof structure is incorporated in each part of an electronic device such as a camera used outdoors or in the rain so as not to hinder the operation of the device even if it is wet with water droplets or dusty. . For example, a camera generally employs a configuration in which a rubber seal material is disposed between the camera body and a back cover in order to prevent water or the like from entering the inside of the camera body that stores a film or the like.

On the other hand, a camera which automatically starts film feeding or the like in response to closing of the back cover of the camera is provided with detection means such as a switch for detecting the open / closed state of the back cover and generating a signal. As a matter of course, a drip-proof and dust-proof structure is also required around the detection means.

A drip-proof and dust-proof structure for detecting the open / closed state of a camera back cover is disclosed in, for example, Japanese Utility Model Publication No. 5-29.
08 is disclosed in Japanese Patent Publication No. In the configuration disclosed in this publication, the switch for detecting the open / closed state of the back cover is not directly interlocked with the movement of an operation knob or the like that is operated to unlock the lock mechanism that locks the back cover in the closed position. In addition, switching is performed in conjunction with the movement of a member provided on the back cover side. More specifically, the motion of a member provided on the back cover side is transmitted to an electric switch portion disposed inside the partition portion of the camera body via a rotary shaft inserted into a hole of the partition portion. By providing an O-ring or the like between the rotating shaft and the hole of the main body partition, the intrusion of water or the like into the battery switch is suppressed.

[0005]

However, in the configuration disclosed in the above-mentioned publication, the drip-proof and dust-proof properties of the electric switch section can be ensured, but the electric switch section is directly controlled by the operation of an operation knob or the like for releasing the closed lock of the back cover. Since it does not interlock, but interlocks with the movement of the member provided on the back cover side, there is a disadvantage in that the number of parts is required in terms of the configuration, which leads to an increase in manufacturing cost.

Also, since many conventional cameras do not have a mechanism for holding the operation knob at the unlocked position, when the operation knob is released, the operation knob locks the back cover by spring force or the like. It will return to the position you set.
For this reason, when trying to close the back cover, the tips of the engaging claws on the back cover side and the engaging claws on the operation knob side come into contact with each other, and the back cover is closed against the spring urging force applied to the operation knob. However, there are drawbacks such as a heavy back cover closing operation and a twist of the back cover.

Accordingly, the present invention ensures the drip-proof and dust-proof properties of the portion for detecting the open / closed state of the back cover while minimizing the increase in the number of parts, and furthermore does not increase the operational feeling when closing the cover. It is an object of the present invention to provide such an electronic device.

[0008]

In order to achieve the above object, according to a first aspect of the present invention, a lid that can be opened and closed with respect to an apparatus body, and the lid can be locked at a closed position. In an electronic device having a lock mechanism operating in a stable lock state and a release state capable of releasing the lock, and a detecting means for detecting the state of the lock mechanism, the lock mechanism is unlocked by engaging with the lock mechanism. A holding mechanism for holding the device in a state is provided, and a lock mechanism and a holding mechanism are arranged on the outside of the device, and a detecting unit is arranged on the inside of the device, with a partition wall that separates the outside of the device from the inside of the device in the body of the device. The operation of the lock mechanism is transmitted to the detecting means via an interlocking pin which is fitted approximately movably in the axial direction in a through hole formed in the partition wall.

According to the second aspect of the present invention, a lid that can be opened and closed with respect to the apparatus main body, a lock that can lock the lid at a closed position, and a lock that operates in a release state that can release the lock. An electronic device having a mechanism and a detecting unit for detecting a state of the lock mechanism, wherein the detecting unit includes a main unit for optically detecting a state of the lock mechanism and an input / output terminal unit. A lock mechanism and a holding mechanism are arranged on a device exterior side of a partition portion of the main body that separates the outside of the device from the inside of the device, and a detecting means is provided in a through hole formed in the partition to substantially seal the through hole. Is inserted and held with the input / output terminal part facing the inside of the device.

That is, the operation of the lock mechanism on the outside of the partition wall is controlled by an interlocking pin which is fitted almost in close contact with the through hole formed in the partition wall portion of the device main body so as to secure required drip-proof and dust-proof properties. The main body of the detecting means for transmitting to the detecting means inside the part or for optically detecting the operation of the lock mechanism in the through hole formed in the partition part of the device main body is ensured to have required drip-proof and dustproof properties. By inserting and holding it in a state of being in close contact with the device, the increase in the number of parts can be minimized, and even if water or dust enters around the lock mechanism and the holding mechanism, the detection means and the optical device inside the partition wall can be used. Intrusion of water or the like around the input / output terminal of the target detection means is suppressed.

In addition, since the holding mechanism for holding the lock mechanism in the unlocked state is provided, the lock mechanism returns to the locked state after the opening operation of the lock mechanism is released, and the lid is in the open state. Regardless, it is possible to prevent the detection means from erroneously detecting that the lid is in the closed state, and to avoid applying a load for returning the lock mechanism from the locked state to the unlocked state when closing the lid. ing.

As a component of the lock mechanism, an engaging portion engageable with the lid is provided, and a position at which the engaging portion is engaged with the lid at the closed position and a position at which the engagement is released. In the case where there is a locking member that slides with respect to the device body between the device and the device, by transmitting the sliding of the locking member to the detection means via the interlocking pin or optically detecting the slide,
The above effects can be obtained with a very simple configuration.

Further, each of the above detecting means is arranged at the upper part of the equipment main body, avoiding the lower part of the equipment where water and dust are likely to collect between the equipment main body and the exterior member when the equipment main body is in the normal posture. It is possible to further enhance the drip-proof and dust-proof performance of each of the detection means in normal use of the device.

[0014]

(First Embodiment) FIG. 1 shows the structure of a back cover lock portion of a camera (electronic device) according to a first embodiment of the present invention.

In this figure, 1 is a camera body, 2 is a back cover (cover) having a drip-proof structure (not shown), and 3 is an engagement claw integrally fixed to the back cover 2. It has a claw 3d extending to one side. The back cover 2 is connected to be openable and closable by a hinge (not shown) of the camera body 1.

Reference numeral 4 denotes a locking member, one end of which is rotatably fitted on a shaft formed on the camera body 1. Reference numeral 5 denotes a locking urging spring, one end of which contacts the dowel formed on the camera body 1 and the other end of which contacts the locking member 4 to urge the locking member 4 in one direction. . The retaining member 4 and the retaining urging spring 5 constitute a holding mechanism described in claims.

Reference numeral 6 denotes a closing lock member having an engaging claw 6d capable of engaging with the claw 3d of the engaging claw 3 when the back cover 2 is at the closed position. The closing lock member 6 is guided by a guide dowel of the camera body 1 and can slide up and down by a predetermined amount in the camera body 1. Reference numeral 7 denotes a lock urging spring, which generates an urging force in the upward direction of the closing lock member 6 (in a direction in which the engaging claw 6d is maintained in a state of being engaged with the claw 3d of the engaging claw 3).

Reference numeral 8 designates the closing lock member 6 in the downward direction (the engagement claw portion 6).
This is an operation knob for performing a sliding operation in a direction in which d is released from the engagement with the claw portion 3d of the engagement claw 3). The operation knob 8 is integrally connected to the closing lock member 6 by press-fitting the dowel 8c into the connecting hole 6c of the closing lock member 6. Note that the closing lock member 6, the lock biasing spring 7, and the operation knob 8 constitute a lock mechanism described in claims.

The locking member 4, the locking biasing spring 5, the closing lock member 6, the locking biasing spring 7, and the operation knob 8 described above are provided on the side of the camera body 1 between the outside of the camera and the inside of the camera. Is assembled outside the side wall portion (partition portion) 1b that separates the two.

Reference numeral 9 denotes a side cover (exterior member) constituting a side exterior of the camera. The side cover 9 has a shape that covers the locking member 4, the locking biasing spring 5, the closing lock member 6, the locking biasing spring 7, and the operation knob 8, and has an operation knob at a substantially central portion in the vertical direction. An elongated hole 9a for exposing the knob portion 8 to the outside is formed. The side cover 9 is fixed to the camera body 1 by a cover fixing screw 10.
Is fixed to the side wall 1b.

Reference numeral 11 denotes an interlocking pin, which is movably fitted in the axial direction in a through hole 1a formed through the upper part of the side wall part 1b so as to communicate the outside and the inside of the side wall part 1b. . The inner peripheral surface of the through hole 1a and the outer peripheral surface of the interlocking pin 11 are in close contact with each other to the extent that the axial movement of the interlocking pin 11 and the required drip-proof and dust-proof properties from the outside to the inside are ensured.
It is also possible to apply grease for ensuring lubricity between the inner peripheral surface of the through-hole portion 1a and the outer peripheral surface of the interlocking pin 11, and to improve the drip-proof and dust-proof properties with this grease.
Further, an O-ring may be attached to the inner periphery of the through hole 1a, or a waterproof boot may be placed over the interlocking pin 11 and the periphery of the through hole 1a in the side wall 1b.

Reference numerals 12, 13, and 14 denote a back cover open / close detection switch A, an insulating member, and a back cover open / close detection switch B fixed by a contact piece fixing screw 15 to a portion inside the side wall portion 1b of the camera body 1. And constitutes an opening / closing detection switch unit, and constitutes a detecting means described in claims. The back cover opening / closing detection switch A12 and the back cover opening / closing detection switch B14 are flexible conductive contacts, and an insulating member 13 is provided between these switches 12 and 14 to prevent conduction between the two contacts except at the contact portion. It is sandwiched between.

The back cover open / close detection switch A12 generates a predetermined amount of pressure so that the switch contact portion 12a and the interlocking pin 11 are always in contact with each other.

The inside area of the camera body 1 in which the open / close detection switch section is disposed has a sealed structure that is isolated from the outside by a camera exterior member or other structural components (not shown).

Next, the operation and the drip-proof / dust-proof function of the back cover lock unit configured as described above will be described with reference to FIGS. 2 and 3 show the unlocked state of the back cover lock portion, and FIGS. 4 and 5 show the locked state of the back cover lock portion. 6 and 7 show the state of the detection switch unit in the unlocked state and the state of the detection switch unit in the locked state, respectively.

When the operation knob 8 is moved downward by the camera user, the operation knob 8 and the closing lock member 6 move downward against the urging force of the lock urging spring 7, and are shown in FIGS. 2 and 3. The lock is released.

At this time, the locking portion 4a of the locking member 4 urged in the counterclockwise direction in FIG. 2 by the urging force of the locking urging spring 5 And the closing lock member 6 is moved downward (unlocked state).
Is held.

At this time, the tapered claw 6b formed at the upper end of the closing lock member 6 and the tip 1
1b are not in contact with each other. Therefore, the interlocking pin 11 is moved outward with respect to the side wall 1b by the pressing force of the back cover open / close detection switch A12, and the switch contact portion 12a of the back cover open / close detection switch A12 is closed as shown in FIG. It contacts the switch contact portion 14a of the detection switch B14 with a predetermined pressure.

Thus, the back cover open / close detection switch A12
And the back cover open / close detection switch B14 are brought into conduction, and a signal indicating that the back cover 2 is open is transmitted to a control circuit of a camera (not shown). The control circuit receives this signal and performs control such as prohibiting shutter operation when the release button is operated.

Next, when the back cover 2 in the opened state is pushed in the closing direction, the engaging claws 3 fixed integrally to the back cover 2
Move left and right. Then, after the claw portion 3d of the engagement claw 3 comes into contact with the lock release claw 4d of the locking member 4, the back cover 2 is further moved.
Is pushed in the closing direction, the locking member 4 rotates clockwise in FIG. 2 against the urging force of the locking urging spring 5,
Locking portion 6a of closing lock member 6 and locking portion 4a of locking member 4
Is disengaged.

The disengagement is performed immediately after the claw 3d of the engagement claw 3 enters the inside of the engagement claw 6d of the closing lock member 6. When the closing lock member 6 is moved upward by the urging force of the lock urging spring 7, the engaging claw 6d of the closing lock member 6 directly engages with the claw 3d of the engaging claw 3, as shown in FIGS. Status,
That is, the back cover 2 is locked at the closed position.

At this time, the tapered claw portion 6b of the closed lock member 6 which has been moved upward contacts the distal end portion 11b of the interlocking pin 11 and pushes the same toward the inside of the camera body. Move inward against. As a result, as shown in FIG.
Is pushed by the interlocking pin 11 to be in a non-conductive state with the back cover open / close detection switch B14, and the signal indicating that the back cover 2 has been opened to the control circuit of the camera is cut off. In response to the signal interruption, the control circuit performs control to start, for example, automatic loading of the film.

In this embodiment, the case where the interlocking pin 11 moves in the direction orthogonal to the sliding direction of the closing lock member 6 has been described.
1. The layout of the components such as the back cover open / close detection switch A12 and the back cover open / close detection switch B14 is changed so that the moving direction of the interlocking pin and the sliding direction of the closing lock member are the same or a relationship other than orthogonal. You may.

As described above, according to the present embodiment, the through hole 1 formed in the side wall 1b of the camera body 1 is provided.
The operation of the closing lock member 6 disposed outside the side wall portion 1b is detected through the interlocking pin 11 which is fitted almost in close contact so as to secure the required drip-proof and dust-proofing property. Since the power is transmitted to the switch unit, an extremely simple configuration while minimizing the increase in the number of parts is achieved. Even if water or dust enters around the close lock member 6 or the lock member 4, the open / close detection switch is used. Intrusion of water and the like around the part can be suppressed.

Further, since the closing lock member 6 can be held in the unlocked state by the locking member 4, the closing lock member returns to the locked state after the opening operation of the operation knob 8 is released, and The back cover can be prevented from erroneously detecting that the cover body is in the closed state by the open / close detection switch unit even though is in the open state. Further, when the back cover 2 is closed, it is possible to avoid applying a load for returning the closed lock member from the locked state to the unlocked state.

Further, the opening / closing detection switch unit and the interlocking pin 11 are arranged so that the camera body 1 avoids a lower portion of the camera body where water and dust easily accumulate between the camera body 1 and the side cover 9 when the camera body 1 is in the normal posture. Since it is arranged on the upper part, it is possible to further enhance the drip-proof and dust-proof performance with respect to the open / close detection switch unit in the normal use of the camera.

(Second Embodiment) FIGS. 8 and 9 show a configuration of a back cover lock portion of a camera (optical apparatus) according to a second embodiment of the present invention. In the present embodiment, the configuration other than the portion for detecting the open / closed state of the back cover is the first configuration.
The second embodiment is the same as the first embodiment, and the same components are denoted by the same reference numerals as in the first embodiment, and the description will not be repeated.

FIG. 8 shows the unlocked state of the back cover lock portion, and FIG. 9 shows the locked state of the back cover lock portion.

Reference numeral 1 'denotes a camera main body, similar to the camera main body 1 of the first embodiment, and has a side wall (partition wall) 1b' on its side to separate the camera from the outside.

Reference numeral 6 'denotes a closing lock member which is formed in substantially the same manner as the closing lock member 6 of the first embodiment, and which can be slid in the vertical direction while receiving an upward urging force of the lock urging spring 7. However, a reflection portion 6a 'is provided at the upper end 6a' of the closed lock member 6 'of the present embodiment instead of the tapered claw portion 6a provided on the closed lock member 6 of the first embodiment.

Reference numeral 22 denotes a photo reflector (optical detecting means). The photoreflector 22 includes a main body 22b in which a light emitting portion that emits infrared light and a light receiving portion that receives infrared light are integrated, and an input / output terminal portion 22c extending from the main body 22b. Have been. In addition,
In the present embodiment, a case will be described in which a photoreflector is used as a means for detecting the opening / closing of the back cover 2, but other optical detection means may be used.

The photoreflector 22 includes a camera body 1 '.
The light emitting / receiving surface 22a of the main body 22b faces the outside through the through hole 1a 'formed through the top of the side wall 1b' so as to communicate the outside and the inside of the side wall 1b ', and the input / output terminal 22c. Is inserted so that it faces inward, and the main body 2
The outer peripheral surface of 2b is almost fixedly adhered to the inner peripheral surface of the through hole 1a 'with an adhesive or the like so that no gap is formed. As a result, required drip-proof and dust-proof properties from the outside to the inside of the through hole 1a 'are secured.

Next, the operation of the back cover lock unit of the present embodiment will be described. As shown in FIG. 8, when the back cover 2 is in the open state, that is, in the state where the closing lock member 6 ′ is waiting at the lower movement position,
Since the reflecting portion 6a 'of the closing lock member 6' is located below the position facing the light emitting / receiving surface 22a of the photo reflector 22, the light receiving output signal of the photo reflector 22 is weakened. Thereby, the control circuit of the camera can control the A /
It detects that the back cover 2 is in an open state via a D conversion circuit or the like, and performs control to prohibit a shutter operation, for example, by operating a release switch.

On the other hand, as shown in FIG. 9, when the back cover 2 is in the closed state, that is, when the closed lock member 6 'is located at the upward movement position, the reflecting portion 6a' of the closed lock member 6 'is The light receiving output signal of the photoreflector 22 becomes strong because it faces the light emitting / receiving surface 22a. As a result, the control circuit of the camera detects that the back cover 2 is in the closed state via an A / D conversion circuit (not shown) or the like, and performs control to start, for example, automatic film loading.

In FIGS. 8 and 9, the inner area of the camera body 1 'on the right side of the position where the photoreflector 22 is arranged is shut off from the outside by a camera exterior member and other structural parts (not shown). It has a sealed structure. For this reason, the light emitting / receiving surface 22 of the photo reflector 22
Even if water, dust, or the like intrudes into a range outside a, that is, a range in which the closing lock member 6 and the locking member 4 are arranged,
It will not come inside from this.

As described above, according to the present embodiment, the camera body 1 'is inserted almost in close contact with the through hole 1a' formed in the side wall 1b 'of the camera body 1' so as to secure required drip-proof and dust-proof properties. The main body portion 22b of the photoreflector 22 ensures the drip-proof and dustproof properties of the input / output terminal portion 22c of the photoreflector 22. Lock member 6 '
Even if water or dust enters around the locking member 4, it is possible to suppress the entry of water or the like around the input / output terminal portion 22 c of the photoreflector 22.

Further, as in the first embodiment, the closing lock member 6 'can be held in the unlocked state by the locking member 4, so that the closing lock member is released after the opening operation of the operation knob 8 is released. After returning to the locked state, it is possible to prevent the back cover from being erroneously detected that the cover body is in the closed state by the open / close detection switch unit even though the back cover is in the open state. Further, when the back cover 2 is closed, it is possible to avoid applying a load for returning the closed lock member from the locked state to the unlocked state.

Further, the photoreflector 22 is disposed at the upper part of the camera main body, avoiding the lower part of the camera where water and dust easily accumulate between the camera main body 1 'and the side cover 9 when the camera main body 1' is in the normal posture. Therefore, it is possible to further enhance the drip-proof and dust-proof performance of the open / close detection switch unit in the normal use of the camera.

In each of the above embodiments, the configuration of the camera back cover lock portion has been described. However, the present invention is provided on a cover other than the camera back cover, for example, a battery compartment cover or the upper or lower surface of the camera. The present invention can be applied to a lock portion of a lid of a film loading chamber, and further can be applied to a lock portion of a lid of an electronic device other than a camera.

[0050]

As described above, according to the present invention, the interlocking pin is fitted to the through hole formed in the partition wall of the main body of the apparatus so that the required drip-proof and dust-proof properties can be secured. Or transmitting the operation of the lock mechanism outside the partition to the detection means inside the partition, or the main body of the detection means for optically detecting the operation of the lock mechanism in a through hole formed in the partition of the equipment body. Since the parts are inserted and held in close contact with each other to ensure the required drip-proof and dust-proof properties, the water around the lock mechanism and the holding mechanism is minimized while increasing the number of parts and the cost. Even if dust or dirt invades, it is possible to realize a configuration that suppresses intrusion of water or the like around the input / output terminals of the detecting means and the optical detecting means inside the partition.

Further, since the holding mechanism for holding the lock mechanism in the unlocked state is provided, the lock mechanism returns to the locked state after the opening operation of the lock mechanism is released, and the cover is in the open state. Regardless, it is possible to prevent the detection unit from erroneously detecting that the lid is in the closed state. Further, it is possible to avoid applying a load for returning the lock mechanism from the locked state to the unlocked state when closing the lid, and it is possible to reduce the closing operation feeling of the lid.

As a component of the lock mechanism, an engaging portion engageable with the lid is provided, and a position for engaging the engaging portion with the lid in the closed position and a position for releasing the engagement. If a locking member that slides with respect to the device body is provided between the device and the device, if the sliding of the locking member is transmitted to the detecting means via the interlocking pin or optically detected, The above effects can be obtained with a simple configuration.

Further, if each of the above-mentioned detecting means is arranged at the upper part of the equipment main body while avoiding the lower part of the equipment where water and dust tend to collect between the equipment main body and the exterior member when the equipment main body is in the normal posture, The drip-proof and dust-proof performance of each of the detection means in the use of the device can be further improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a back cover locking portion of a camera according to a first embodiment of the present invention.

FIG. 2 is a side view showing an unlocked state of the back cover lock unit.

FIG. 3 is a sectional view showing an unlocked state of the back cover lock unit.

FIG. 4 is a side view showing a locked state of the back cover lock unit.

FIG. 5 is a cross-sectional view illustrating a locked state of the back cover lock unit.

FIG. 6 is a cross-sectional plan view showing a state of an unlocked state of an open / close detection switch unit in the back cover lock unit.

FIG. 7 is a cross-sectional plan view showing a locked state of an open / close detection switch unit in the back cover lock unit.

FIG. 8 is a cross-sectional view illustrating a configuration (an unlocked state) of a back cover lock portion of the camera according to the second embodiment of the present invention.

FIG. 9 is a cross-sectional view showing the configuration (locked state) of the back cover lock portion of the second embodiment.

[Explanation of symbols]

 1, 1 'Camera body 1a, 1a' Through hole 1b, 1b 'Side wall 2 Back lid 3 Engagement claw 4 Locking member 5 Locking urging spring 6, 6' Closing lock member 7 Locking spring 8 Operation Knob 9 Side cover 11 Interlocking pin 12 Back cover open / close detection switch A 13 Insulating member 14 Back cover open / close detection switch B 15 Contact piece fixing screw 22 Photo reflector

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H100 AA52 EE06 2H101 CC56 4E360 AB08 AB12 AB31 AB42 BA04 BB02 BB12 BB16 BB20 BB23 BC03 BC04 BC05 BD03 EC11 ED13 ED14 ED27 GA04 GA07 GA22 GA29 GA44 GB01

Claims (6)

[Claims] 1. A cover that can be opened and closed with respect to an apparatus body, a lock mechanism that operates in a locked state in which the cover can be locked in a closed position and a release state in which the lock can be released, and a lock mechanism that An electronic device having a detecting means for detecting a state, wherein a partition mechanism is provided for engaging with the lock mechanism and holding the lock mechanism in an unlocked state, and separating a device outside and a device inside the device main body. The lock mechanism and the holding mechanism are arranged on the outside of the device, and the detection unit is arranged on the inside of the device, with the through-hole portion formed in the partition wall portion being substantially movable in the axial direction. An electronic device, wherein an operation of the lock mechanism is transmitted to the detection unit via an interlocking pin that is closely fitted. 2. A locking member, which is provided with an engagement portion engageable with the lid, is provided as a constituent member of the lock mechanism. 2. The device according to claim 1, further comprising: a locking member that slides with respect to the device main body between a releasing position and the interlocking pin, which transmits the sliding of the locking member to the detection unit. An electronic device according to claim 1. 3. A lid that can be opened and closed with respect to the device main body, a lock mechanism that operates in a locked state in which the lid can be locked in a closed position and a release state in which the lock can be released, and An electronic device having a detecting means for detecting a state, a holding mechanism engaging with the lock mechanism and holding the lock mechanism in an unlocked state, wherein the detecting means optically changes the state of the lock mechanism. The lock mechanism and the holding mechanism are arranged on the device exterior side of a partition portion of the device main body that separates the device from the outside and the input / output terminal portion. The main body of the detection means is inserted and held in the through-hole portion formed in the portion so as to substantially seal the through-hole portion, with the input / output terminal portion facing the inside of the device. Electronic equipment. 4. A locking member provided with an engaging portion engageable with the lid as a constituent member of the lock mechanism, and a position at which the engaging portion is engaged with the lid at a closed position and the engagement with the lid are determined. 4. The apparatus according to claim 3, further comprising: a locking member that slides with respect to the device main body between a release position and the detection member, wherein the detecting unit optically detects the sliding of the locking member. Electronic device as described. 5. The lock mechanism is disposed between the partition and an exterior member covering an outer surface of the device main body, and at least a part of the lock mechanism to be unlocked is provided outside the exterior member. The electronic device according to claim 1, wherein the electronic device is exposed. 6. The optical device according to claim 1, wherein the detection unit is arranged above the device main body when the device main body is in a normal posture.