JPH0779022B2 - adapter - Google Patents

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Field of Industrial Application Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems Action (FIG. 1) Embodiment (1) First Embodiment (FIGS. 1 to 3) (2) Second Example (FIG. 4) (3) Third Example (FIG. 5) (4) Other Example Effects of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adapter, and is suitable for application to electronic equipment such as a video camera integrated video tape recorder (video camera integrated VTR).

[0003]

2. Description of the Related Art In recent years, electronic devices of this kind, such as a video camera integrated VTR, have been designed to reduce power consumption and to be integrated with high density as a whole, resulting in a small size and a light weight. A VTR with a built-in video camera, which has good portability and can record video for a long time even with a small capacity battery, has been provided.

[0004]

In such a VTR with a built-in video camera, if the battery is inadvertently consumed, for example, on the go, there is a possibility that a valuable scene cannot be recorded. In such a case, it would be practically convenient if a power supply case of an appropriate power supply type could be attached to an electronic device so that the power supply case could be easily and surely replaced.

The present invention has been made in consideration of the above points, and an object thereof is to propose a power supply case that can easily and surely replace an electric device.

[0006]

In order to solve such a problem, in the present invention, a mounting surface 5A having a recess 64 for indicating the type of the power source is provided on the mounting surface 5A. In the adapter 3 configured to be pressed by the mounting surface 2 of the electronic device 1 provided with the convex portion 34 representing the type of the above, and to be mounted by the plurality of engaging protrusions provided in the electronic device 1. 3 is attached to each of the two end edges in the longitudinal direction of the mounting surface 5 so as to be engaged with the respective engaging protrusions.
A first L in which the starting end of the L-shape is open at A and the entire L-shape is open at the short side surfaces 5B and 5D orthogonal to the mounting surface 5A.
Short side surfaces 5B, 5D having the L-shaped starting ends open at the mounting surface 5A and the groove 7B, 7D in the shape of a letter and orthogonal to the mounting surface 5A.
And a second L-shaped groove 7A, 7C in which the entire L-shape is opened and the entire side is open at the long side 5C orthogonal to the mounting surface 5A. 5A is pressed against the mounting surface 2 and slid to allow the adapter 3
Is mounted on the electronic device 1, and the recess 64 is provided on the mounting surface 5A at the front side position in the sliding direction from the center of the mounting surface 5A, and the length of the recess 64 is slidable with respect to the convex portion 34. Make it long enough to allow movement.

[0007]

The mounting surface 5 is fitted to each of the both end edges of the case 5 of the adapter 3 so as to be engaged with the respective engaging projections 8B and 8D.
A first L-shaped groove 7B, 7D in which the L-shaped starting end is opened and the entire L-shaped is opened in the short side surface 5B orthogonal to the mounting surface 5A, and the L-shaped starting end in the mounting surface 5A. Is opened, and the entire L-shape is opened on the short side surface 5B orthogonal to the mounting surface 5A, and the entire one side having the L-shaped starting end is opened on the long side surface 5C orthogonal to the mounting surface 5A. L-shaped groove 7
By providing A and 7C, the entire one side having the L-shaped start end on the long side surface 5C is opened by the engaging projections 8A and 8C provided on the electronic device 1 when the adapter 3 is attached. Since the groove portion is positioned and guided, the mounting operation can be performed easily and reliably. Further, regardless of the configuration in which the L-shaped groove is provided on the side surface of the short side, a long span can be provided between the two L-shaped grooves provided on the same side, so that the electronic device can be firmly mounted. At the same time, when the adapter 3 is accidentally dropped, the claws at the corners and the grooves 7A and 7C can be prevented from being damaged. Further, by providing L-shaped grooves 7B, 7A and 7D, 7C at both end edges of the case 5 of the adapter 3 in the longitudinal direction, the mounting span of the adapter 3 can be set to the long side length. As a result, the adapter 3 can be firmly locked to the electronic device 1.
Further, since the concave portion 64 indicating the type of the power source is provided on the mounting surface 5A so as to correspond to the convex portion 34 formed on the mounted surface 2 of the electronic device 1, the adapter 3 is simply pressed. Therefore, it is possible to determine whether or not the adapter 3 is erroneously attached before sliding. Further, since the adapter 3 is provided with the concave portion 64 indicating the type of the power source so as to correspond to the convex portion 34 of the electronic device 1 at the front side position in the sliding direction for mounting from the center of the mounting surface 5A of the case 5, the concave portion When an incompatible adapter 3 not provided with 64 is pressed against the mounting surface 2 of the electronic device 1, the adapter 3 is in a tilted state, so that before the user slides the adapter 3, the user can Erroneous mounting can be easily checked visually.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) First Embodiment FIG. 1 shows an embodiment of a power supply unit according to the present invention.
The power supply unit, which stores the battery in the power supply case 3, is detachably locked to the mounting surface 2 on the back of the video camera integrated VTR body 1 which is designed to record using only the battery and the power adapter. With the surface of the power supply case 3 as the mounting surface, the mounting surface is connected to the video camera integrated type V
The mounting surface 2 of the TR body 1 is used as a mounting surface so that the TR body 1 can be locked while being pressed against the mounting surface.

In the case of this embodiment, as shown in FIG. 3, the power supply unit can also be detachably locked to the charger 40 so that the battery can be charged. The power supply case 3 is composed of a lower case 4 and an upper case 5, and accommodates, for example, five AA-battery-shaped batteries integrated in the power supply case 3 so as to be aligned in the longitudinal direction, for example, by a heat shrink tube. ing. In this way, the power supply unit has a reduced overall thickness, which allows the V camera integrated type V
Even when it is attached to the TR main body 1, it does not disturb the handling.

Further, four claws 6A, 6B, 6C and 6D are provided on both longitudinal edges of the upper case 5.
The claws 6A, 6B, 6C, 6D have L-shaped grooves 7A, 7B, 7
It extends in the left-right direction so as to be adjacent to C and 7D. L
The V-shaped grooves 7A and 7C have the L-shaped starting end opened on the mounting surface 5A for the electronic device, the entire L-shape open on the short side faces 5B and 5D, and the one side having the starting end on the long side face 5C. It is open. In addition, the L-shaped grooves 7B and 7D have their L-shaped starting ends open on the mounting surface 5A for mounting on an electronic device, and the short side surface 5
The entire L-shape is open in B and 5D. Protrusions 8A, 8B, 8 provided on the video camera integrated VTR body 1
By fitting C and 8D along the L-shaped grooves of the corresponding L-shaped grooves 7A, 7B, 7C and 7D, the projections 8A,
8B, 8C, 8D and L-shaped grooves 7A, 7B, 7C, 7D
The power supply case 3 can be locked on the VTR main body 1 with integrated video camera via the. Therefore, the L-shaped grooves 7A and 7C have the L-shaped starting end opened on the mounting surface 5A for the electronic device, and the entire L-shape opened on the short side surfaces 5B and 5D, and the above-mentioned starting end on the long side surface 5C. Has an open side, and the L-shaped grooves 7B and 7D have their L-shaped starting ends open on the mounting surface 5A to the electronic device, and the short-side side surfaces 5B and 5D.
By making the entire L-shape open at D, when the power supply case 3 is mounted, the engaging projections 8A and 8C provided on the electronic device 1 cause the long-side surface 5C to have an L-shaped start end. Since the groove portion whose entire side is open is positioned and guided, the mounting operation can be performed easily and reliably. Further, since the mounting span for mounting the power supply case can be set to the length of the long side, the power supply case can be firmly locked, and the tips of the claws 6A and 6C do not extend to the corners of the power supply case. When dropping the power supply case, claw 6A,
It is possible to prevent the tip of 6C from being damaged.

In the case of this embodiment, a video camera integrated type V
On the mounting surface 2 of the TR main body 1, a pair of square bar-shaped locking members 9 are arranged so as to face both end edges of the upper case 5 in the longitudinal direction.
And 10 are provided so as to project, an edge portion is provided at the tip of the locking members 9 and 10 in a direction orthogonal to the mounting surface 2, and projections 8A, 8B, 8 are provided at positions inside the edge portions so as to face each other.
C and 8D are formed.

Thus, as shown by the arrow a, the mounting surface 5A of the power supply case 3 is pressed against the video camera integrated VTR main body 1 with the short side surfaces 5B and 5D of the power supply case being positioned at the above-mentioned edges. Then, the power supply case 3 can be detachably locked between the locking members 9 and 10 by sliding the power supply case 3 so as to be laterally displaced. When mounting the power supply case 5 on the mounting surface 2 of the electronic device 1, the user applies both end edges of the mounting surface 5A of the power supply case 5 to the edges of the locking members 9 and 10 and uses this as guiding means. The power supply case 5 is pressed and slid on the electronic device 1. Thus, since the edge portion can be used as the guide means, the mounting surface 5A can be easily aligned with the mounted surface 2. In addition, a concave portion 31 provided on the mounting surface 5A of the power source case 5 for indicating the type of power source.
By providing the convex portion 34 that fits on the attached surface 2
Whether or not the power supply case 5 can be mounted can be determined before the sliding operation.

Further, a rectangular recess 15 is provided on the mounting surface of the upper case 5, and a projection 16 is provided on the VTR body 1 with integrated video camera as shown in FIG. When the power supply case 3 is pressed against the video camera integrated VTR main body 1 and then the projection 16 is slid to bring the power supply case 3 to a predetermined locking position, the protrusion 16 is pressed by a spring as shown by an arrow b. The power supply case 3 attached to the video camera integrated VTR body 1 is prevented from falling off by protruding from the mounting surface 2 of the video camera integrated VTR body 1 and fitting into the recess 15.

Further, the mounting surface 5A of the upper case 5 has rectangular recesses 19 and 20 having through holes 17 and 18, and a metal having elasticity so as to close the through holes 17 and 18 of the recesses 19 and 20. The pieces 21 and 22 are provided, and the video camera integrated VTR body 1 is provided on the metal pieces 21 and 22.
When the terminals 27 and 28 that stand up are brought into contact with the central portions of the rectangular projections 25 and 26 that project from the mounting surface 2 of the power supply case 3, the VCR main body 1 with integrated video camera.
Power can be supplied to the video camera integrated VTR main body 1 from the battery housed in the power supply case 3 by simply attaching the power supply to the VTR main body 1. Therefore, since the metal pieces 21 and 22 are provided at the bottoms of the recesses 19 and 20, even if the power supply case is carelessly placed on the conductive material, it is possible to prevent an accident due to discharge or contact.

Further, the upper case 5 is a rectangular concave portion 30 and 3 which is formed by a concave surface representing the type of power supply unit.
1 is provided. The lengths of the concave portions 30 and 31 are formed to be longer than the length of a convex portion 34 provided in the video camera integrated VTR main body 1 described later.

On the other hand, the video camera integrated VTR body 1 is provided with the convex portion 34 and the flat portion 35, which are flat portions or convex surfaces, which indicate the type of power source unit that can be used, at the positions corresponding to the concave portions 30 and 31. In the VTR main body 1 with integrated video camera, which is configured to record using only a battery and a power adapter, a convex portion formed of a rectangular protrusion so as to be fitted in the concave portion 31 of the power source case 3. 34 is provided, a convex portion is not formed at a position corresponding to the concave portion 30 of the power supply case 3, and a flat portion 35 is provided so as to be flush with the mounting surface 2. In addition, the convex portion 3
As is clear from FIG. 1, 4 is a slide for mounting the power supply case 3 on the video camera integrated VTR main body 1 on a line approximately connecting the projections 8B and 8D, that is, from the center of the mounting surface 5A of the case 5. It is located at the front side of the direction.

Accordingly, the power unit is pressed against the VTR main body 1 with integrated video camera so that the VTR main body 1 is superposed on the VTR main body 1, so that the rectangular concave portion 31 is fitted into the convex portion 34. In this state, the power source to be mounted is mounted. Whether the unit is suitable or not can be determined, and when the power supply unit is suitable, the length of the concave portion 31 is longer than the length of the convex portion 34, so that the video camera integrated VTR main body 1 and the power source unit slide with each other. By this sliding, the projections 8A, 8B, 8C and 8D of the video camera integrated VTR main body 1 are fitted into the L-shaped grooves 7A, 7B, 7C and 7D of the power supply case 3, and the video camera The body power VTR body 1 can be locked with a battery power unit.

In this way, the power supply unit can be easily integrated into the video camera by simply attaching the L-shaped grooves 7A, 7B, 7C and 7D to the protrusions 8A, 8B, 8C and 8D. Power can be supplied by being detachably locked to the VTR main body 1. Further, at this time, the recess 1
By fitting 5 and the protrusion 16 to each other, it is possible to reliably prevent the power supply case 3 from coming off and to stably supply power.

On the other hand, as shown in FIG.
0, in addition to the configuration of the mounting surface 2 of the video camera integrated VTR main body 1 having the configuration of FIG. 1, on the mounting surface 41 of the power supply unit, there is a quadrangular convex portion 45 having the same shape as the convex portion 34. ing. The projections 34 and 45 are adapted to fit into the recesses 30 and 31 of the power supply unit of the battery, and as shown by the arrow c, the power supply unit is pushed against the charger 40 to slide the power supply unit. L of the case
The character-shaped grooves 7A, 7B, 7C and 7D are provided with the protrusions 8 of the charger 40
It can be fitted to A, 8B, 8C, and 8D, and the power supply unit of the battery can be detachably locked to the charger 40 by a simple attachment operation.

As described above, according to the configurations of FIGS. 1 to 3,
Power is supplied by attaching the battery power supply unit to the video camera integrated VTR body 1 by a simple operation of pressing and sliding the power supply unit on the electronic equipment such as the video camera integrated VTR body 1 and the charger 40. It can be charged or attached to the charger 40. Further, after the mounting, the recess 15 and the protrusion 16 are fitted to each other, so that the power supply case 3 can be surely prevented from falling off, and the power can be stably supplied.

(2) Second Embodiment FIG. 4 shows a second embodiment of the power supply unit according to the present invention, in which the lower case 51 is formed deeper than the lower case 4 of the battery power supply unit, and the upper side is formed. Six dry batteries, which are AA batteries, are housed in the case 52 and the lower case 51 to prevent a voltage drop during recording.

Further, the upper case 52 is provided with a rectangular recess 30, and a flat portion 54 is formed so as to be flush with the surface of the upper case 52. As a result, the convex portion 34 of the video camera integrated VTR body 1 abuts against the flat portion 54, so that the video camera integrated VT
Even if an attempt is made to slide the power source unit 50 of the dry battery on the R body 1, the protrusions 8A, 8B, 8C, 8D of the video camera integrated VTR body 1 are fitted in the L-shaped grooves 7A, 7B, 7C of the power supply case 53. , 7D do not fit.

As is apparent from FIG. 4, the convex portion 34 is on the line approximately connecting the protrusion 8B and the protrusion 8D, that is, the power source case 53 from the center of its mounting surface 5A to the video camera integrated VTR body 1. Since the mounting surface 5A of the power supply case 53 is pressed against the mounting surface 2 of the electronic device 1, the power supply case 53 is mounted on the front side of the electronic device 1 because the mounting surface 5A of the power supply case 53 is pressed against the mounting surface 2 of the electronic device 1. It is in a state of being inclined with respect to the mounting surface 2 (a state in which the convex portion 34 and the flat portion 54 are in contact with each other),
By the convex portion 34 and the flat portion 54, a gap is formed between the video camera integrated type VTR main body 1 and the power supply case at a position on the front side in the sliding direction. You can easily visually check for incorrect mounting.

Therefore, it is possible to effectively prevent the power source unit 50 of the dry battery from being erroneously attached to the video camera integrated VTR body 1 to which only the battery and the power adapter can be connected.

Similarly, when the power supply unit 50 is to be attached to the charger 40 as shown in FIG. 3, the convex portion 34 of the charger 40 abuts on the flat portion 54 of the power supply unit 50 and the dry battery is attached to the charger 40. The power unit of cannot be installed.

Therefore, even if the power unit 50 of the dry battery is to be attached to the charger 40, it cannot be attached. Therefore, it is possible to effectively avoid accidentally attaching these power source units to the charger. On the other hand, instead of the flat portion 35, the concave portion 3 of the power unit 50 is used.
In the VTR main body with integrated video camera, the VTR main body is provided with a convex portion that fits with 0 and a mounting surface in which the convex portion 34 is a flat portion or a mounting surface in which both the convex portion 34 and the flat portion 35 are flat portions. Since it does not hit the flat portion 54 of the power supply unit 50, by pressing the power supply unit against the video camera integrated type VTR main body and sliding it, the protrusions 8A, 8B, 8C and 8D can be attached to the L of the power supply unit 50. The character-shaped grooves 7A, 7B, 7C, 7D can be fitted.

Therefore, the power source can be supplied to the video camera integrated VTR body having such a mounting surface by simply mounting the power source unit 50 of the dry battery by a simple mounting operation.

As described above, according to the configuration of FIG. 4, the flat portion 54 of the power supply case 53 is abutted against the flat portion 54 and the projection 8
A, 8B, 8C, 8D through L-shaped grooves 7A, 7B, 7C, 7
It is possible to effectively avoid accidentally attaching the power supply unit 50 of the dry battery to the video camera integrated VTR main body 1 and the charger 40 provided with the convex portion 34 that cannot be fitted to the D. Furthermore, the flat part 5 of the mounting surface
For a VTR body with a built-in video camera that does not have a convex portion 34 that abuts 4, the power supply unit 50 is attached and power is supplied by a simple operation of pressing and sliding the power supply unit 50. In addition, it is possible to effectively avoid the power supply case from falling off and stably supply power.

(3) Third Embodiment FIG. 5 shows a VTR main body 1 integrated with a video camera from a commercial power source.
A third embodiment will be described in which the present invention is applied to a power supply device that includes a power adapter 60 that does not include a battery and that is configured to supply power to the power supply.

A constant voltage unit 62 receives a commercial power source via an outlet 61 and converts it into a DC power source of a predetermined voltage, and then a metal piece 2 of a power source case 67 via a power cord 63.
Video camera integrated type V by connecting to 1 and 22
Supply power to the TR body 1. Further, in the upper case 65, a recess 64 is provided, and a flat portion 66 is provided so as to be flush with the surface of the upper case 65.

In the power supply device of the power adapter 60, the concave portion 64 and the convex portion 34 of the video camera integrated VTR main body 1 are fitted to each other so that the power supply case 67 is attached to the video camera integrated VTR main body 1. The L-shaped groove 7 is formed on the protrusions 8A, 8B, 8C and 8D simply by pressing and sliding.
A, 7B, 7C, 7D can be fitted. Therefore, the power supply device can be easily connected to the video camera integrated type VTR main body 1 to supply power by a simple mounting operation of pressing and sliding.

After further mounting, the recess 15
By fitting the protrusion 16 with the power supply case 3, it is possible to prevent the power supply case 3 from coming off and to stably supply power. In contrast, the charger 40 as shown in FIG.
7 is attached, the convex portion 45 of the charger 40 hits the flat portion 66, and the protrusions 8A, 8 of the charger 40 are attached.
B, 8C, and 8D are L-shaped grooves 7A and 7 of the power supply unit 60.
B, 7C and 7D cannot be fitted together. Therefore, the power adapter 60 can be effectively prevented from being accidentally attached to the charger 40.

According to the structure shown in FIG. 5, the projections 8A, 8B, 8C and 8D which abut against the flat portion 66 of the power supply case 67 cannot be fitted into the L-shaped grooves 7A, 7B, 7C and 7D. It is possible to effectively prevent the power adapter 60 from being mistakenly attached to the charger 40. Further, with respect to the video camera integrated VTR main body 1 which does not have the convex portion 45 that abuts against the flat portion 66, it is possible to simply attach the power source case 67 of the power adapter 60 and slide it. A power supply device can be attached to supply power stably.

(4) Other Embodiments In the above-described embodiments, the case where the types of power sources are represented by the difference between batteries, dry batteries, and power adapters has been described. However, the types of power sources represented are not limited to this, for example, a power unit. The power supply voltage, capacity, etc. may be represented to prevent the power supply unit from being erroneously attached.

In the above-mentioned embodiments, the case where the unevenness portion is used to simply prevent the power supply unit from being accidentally attached has been described. In addition to this, the shape of the unevenness portion causes the voltage of the power supply unit to be prevented. The user may be allowed to visually check the capacity and the like.

In the above-mentioned embodiments, the case where the concave and convex portions on the side of the power source case are made concave and flat to indicate the type of the power source has been described. However, the present invention is instead of this, for example, on the side of the power source case. The concavo-convex portion may be a combination of a convex portion and a flat portion, a combination of convex portions, a convex portion and a concave portion, and the combination of the concavo-convex portion on the video camera integrated VTR main body or the charger side may be correspondingly changed.

In the above-mentioned embodiments, the case where the convex portion and the concave portion are formed in a quadrangular shape has been described, but the present invention is not limited to this, and for example, a circular shape, a triangular shape, etc. can be widely applied, and further, these shapes can be applied. You may make it combine and use a shape.

In the above embodiment, the case where the convex portion fits into the concave portion has been described, but the present invention is not limited to this.
By changing the height of the convex portion, it is possible to prevent the power supply unit from being accidentally connected by the tip of the protruding portion hitting the bottom surface of the concave portion.

In the above-mentioned embodiments, the case where the present invention is applied to the power source case of the power source unit of the video camera integrated type VTR main body is described, but the present invention is not limited to this, and is widely used in the power source unit of electronic equipment. Can be applied to the case.

[0041]

As described above, according to the present invention, the L-shaped starting end is opened on the mounting surface so as to be engaged with the respective engaging protrusions at both end edges of the case of the adapter. And the first L with the entire L-shape open at the short side surface orthogonal to the mounting surface
The L-shaped groove and the L-shaped starting end are opened on the mounting surface, the entire L-shape is opened on the short side surface orthogonal to the mounting surface, and the L-shaped starting end is formed on the long side surface orthogonal to the mounting surface. By providing the second L-shaped groove whose entire side is open, the one side having the L-shaped start end on the long side surface by the engaging protrusion provided on the electronic device when the adapter is attached. Since the groove portion, which is entirely opened, is positioned and guided, the mounting operation can be performed easily and reliably. Further, regardless of the configuration in which the L-shaped groove is provided on the side surface of the short side, a long span can be provided between the two L-shaped grooves provided on the same side, so that the electronic device can be firmly mounted. At the same time, when the adapter is accidentally dropped, the claws at the corners and the groove can be prevented from being damaged. Further, by providing the L-shaped groove at each of both longitudinal edges of the case of the adapter, the mounting span of the adapter can be set to the length of the long side, which allows the adapter to be firmly mounted on an electronic device. Can be locked. In addition, the mounting surface is provided with a concave portion that indicates the type of power source so as to correspond to the convex portion formed on the mounting surface of the electronic device. It is possible to determine whether or not it is erroneously attached. In addition, the concave part is not provided because the concave part that indicates the type of the power supply is provided at the front side position in the sliding direction for mounting from the center of the mounting surface of the adapter case to correspond to the convex part of the electronic device. When the adapter is pressed against the mounting surface of the electronic device, the adapter is tilted, which allows the user to easily visually check the erroneous mounting of the adapter before sliding the adapter.

[Brief description of drawings]

FIG. 1 is a perspective view showing a power supply unit and a video camera integrated VTR main body according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a partially attached cross section.

FIG. 3 is a perspective view showing a power source unit of a charger and a battery.

FIG. 4 is a perspective view showing a power source unit of a dry battery and a VTR main body integrated with a video camera.

FIG. 5 is a perspective view showing a power supply device of a power adapter and a video camera integrated VTR main body.

[Explanation of symbols]

1 ... VTR main body with integrated video camera, 3 ... power supply case, 30, 31, 34, 35 ... uneven portion, 36, 45 ...
… Convex part, 66 …… Flat part, 40,50 …… Power supply unit.

Claims (1)

[Claims] 1. A mounting surface having a concave portion indicating the type of power supply on the mounting surface is pressed against the mounting surface of an electronic device having a convex portion indicating the type of power source that can be mounted on the mounting surface. Then, in an adapter adapted to be mounted by a plurality of engaging projections provided in the electronic device, each of the engaging projections is engaged with each of both longitudinal end portions of the adapter. As described above, the first L-shaped groove in which the L-shaped start end is opened on the mounting surface and the entire L-shape is opened on the short side surface orthogonal to the mounting surface and the mounting surface is L-shaped.
A first end of the letter L is opened, the entire L-shape is opened on the short side surface orthogonal to the mounting surface, and the entire one side having the L-shaped starting end is opened on the long side surface orthogonal to the mounting surface. Two
L-shaped groove is provided, and the adapter is mounted on the electronic device by pressing and sliding the mounting surface against the mounting surface, and the recess is formed on the mounting surface. An adapter characterized by being provided on the mounting surface at a position on the front side in the sliding direction from the center, and the length of the concave portion being a length allowing the sliding of the convex portion.