JPH0676553A - Electronic equipment - Google Patents

Abstract

(57) [Summary] [Purpose] Long-projecting lid protrusion directly presses the lid open / close detection switch, and damage to each component, failure, and electronic components caused by the substrate becoming visible through the through hole. Problems such as deterioration of the appearance of the device and uncertainty of the pressing operation of the lid protrusion on the lid opening / closing detection switch are solved. [Structure] A relay member is provided which presses the lid opening / closing detection switch section by pressing the lid projection. Further, a part of the lid lock mechanism portion is configured to function as a stopper portion for the relay member. Further, the abutting portion between the lid protrusion and the relay member and the abutting portion between the relay member and the lid opening / closing detection switch are not arranged on the same pressing stroke line. Alternatively, a film-like sheet is used as the relay member.

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 lid opening / closing detection mechanism for detecting opening / closing of a lid by detecting a pressed state of a lid opening / closing detection switch provided inside a housing.

[0002]

2. Description of the Related Art In an electronic device such as a CD player, a lid opening / closing detection mechanism is provided in order to detect the open / closed state of the lid.

FIG. 9 is a partial sectional view showing a lid opening / closing detecting mechanism in a conventional example. The lid 15 has a protrusion 15a, and the housing 16 is provided with a through hole 16a for the protrusion 15a. Further, a lid opening / closing detection switch section 17 is provided on a board 18 on which an electronic circuit element is mounted. A tip portion 17a of the lid opening / closing detection switch section 17 is an on / off switch that moves up and down, and the lid is open. A spring mechanism in the section opening / closing detection switch section 17 always urges the upper opening position shown by a broken line in the drawing. When the lid is in the open position, the projection 15a is
Does not come into contact with the tip portion 17a of the lid opening / closing detection switch portion 17. Therefore, the tip portion 17 of the lid opening / closing detection switch portion 17
a is in a state of protruding to the position of the broken line in the figure, that is, in the off state, and as a result, the lid opening / closing detection switch unit 17 detects that the lid is in the open position.

On the other hand, when the lid 15 is in the closed position, the protrusion 15a pushes the tip 17a of the lid opening / closing detection switch 17 as shown by the solid line in the figure, so that the lid opening / closing detection switch 17 has The tip portion 17a moves downward from the broken line to the position shown by the solid line, that is, the ON state. As a result, the lid opening / closing detection switch unit 17 detects that the lid unit 15 is in the closed position.

By the way, the housing 16 is provided with a stopper portion 16b for restricting a stroke of the projection 15a with respect to the tip portion 17a of the lid opening / closing detection switch portion 17, and even if an excessive force is applied to the lid portion 15. Stopper 16b
Is configured to prevent the protrusion 15a, the lid opening / closing detection switch 17 and the like from being damaged by contacting the tip 15b of the lid.

[Problems to be Solved by the Invention]

However, in the lid opening / closing detection mechanism as shown in FIG. 9, the projection 15a provided on the lid 15 directly presses the lid opening / closing detection switch 17, so that the projection 1
5a must be molded to a certain length in order to reach the lid opening / closing detection switch unit 17. As a result, there is a problem that the strength of the protrusion 15a is reduced and the risk of breakage is increased.

In addition, when the lid portion 15 is opened, the projection portion 15 protrudes for a long time, which impairs the external appearance of the electronic device, and there is a problem in that software such as a CD is brought into contact with the projection portion 15a to damage it.

Further, regarding the area of the contact portion 15c of the protrusion 15a with respect to the tip end 17a of the lid opening / closing detection switch unit 17, since the protrusion 15a is resin-molded, the shrinkage that may occur during molding. Considering the deterioration in appearance due to, it cannot be taken wide enough. Therefore, in some cases, even if the lid portion 15 is at the closed position, the pressing of the protrusion 15a against the tip portion 17a is deviated, and the pressing cannot be performed reliably. Even though the lid portion 15 is at the closed position, the lid portion opening / closing detection switch portion 17 Detects that the lid 15 is in the open position,
There is a problem that the CD player does not operate correctly (for example, the CD is not played even if the play button is pressed).

Further, when the cover 15 is in the open position, the cover opening / closing detection switch 17 is inserted from the through hole 16a of the projection 15a.
The appearance of the electronic device is impaired by seeing a part of the board 18 including the parts, and foreign matter is easily mixed in or inserted into the housing 16 through the through hole 16a. There is also a problem that a circuit failure due to a short circuit or the like is likely to occur.

Further, although the stopper portion 16b is provided, this is not sufficient in practice, and the lid portion 15 is provided.
When a stronger force is applied to the lid 15, the lid 15 itself bends,
There is also a problem that the protrusion 15a further presses the lid opening / closing detection switch unit 17 and damages the protrusion 15a, the lid opening / closing detection switch unit 17, and the like.

[Means for Solving the Problems]

In order to solve the above problems, the present invention provides
In an electronic device having a lid opening / closing detection mechanism in which the opening / closing of the lid is detected by pressing the lid opening / closing detection switch provided inside the housing, the protrusion of the lid abuts and presses. Thus, a relay member for pressing the lid opening / closing detection switch is provided between the protrusion and the lid opening / closing detection switch. Further, a part of the lock mechanism that holds the lid in the closed position is configured to limit the pressing stroke of the relay member with respect to the lid opening / closing detection switch.

In addition, the contact stroke between the relay member and the protrusion, and the relay member should be adjusted so that the stroke of pressing the relay member by the protrusion and the stroke of pressing the cover opening / closing detection switch by the relay member are not on the same line. The contact portion of the lid opening / closing detection switch portion was configured.

Further, with respect to the relay member, in a state where a part thereof is fixed, the free end which is not fixed is operated to press the lid opening / closing detection switch unit in conjunction with the pressing operation of the protrusion. It is also possible to do so.

Further, a film-like sheet is used as a relay member. For example, it is possible to fix a part of the film-like sheet and interpose it between the protrusion provided on the lid and the tip of the lid opening / closing detection switch.

[0015]

The length of the projection can be shortened by providing a relay member between the projection and the lid opening / closing detection switch, which presses the lid opening / closing detection switch according to the pressing operation of the projection. . Further, the relay member itself can reliably shield between the through hole of the protrusion and the substrate on which the lid opening / closing detection switch is provided. In addition, by widening the area of the contact portion of the relay member with respect to the lid portion opening / closing detection switch portion, it is possible to always reliably and reliably press the tip portion of the lid portion opening / closing detection switch portion. Further, by causing a part of the lid lock mechanism portion to function as a stopper portion that limits the pressing operation stroke of the relay member, no load is applied to the protrusion and the lid opening / closing detection switch portion. Furthermore, by making sure that the pressing stroke of the protrusion on the relay member and the pressing stroke of the relay member on the lid opening / closing detection switch are not on the same line, the pressing force of the protrusion is buffered to cover the lid opening / closing detection switch. You can tell the department.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment as a CD player according to the present invention will be described below. FIG. 1 is an exploded perspective view including the lid opening / closing detection mechanism portion of the CD player in the first embodiment. As shown in FIG. 1, the CD player housing is formed by fitting an upper housing cabinet 2 and a lower housing cabinet 7 together, and a lid portion 1 is attached to the upper housing cabinet 2. The rear end portion 1c of the lid portion 1 is an upper cabinet 2
It can be opened and closed by being pivotally supported by, for example, a CD
(Compact disc) can be loaded. Further, the lid portion 1 itself is biased to the open position by a spring member B provided in the vicinity of the shaft supporting portion.

At the front end of the lid portion 1, a lid locking claw engaging portion 1 is provided.
b is provided with a protrusion 1a, and the protrusion 1a is a lid 1
When is in the closed position, it penetrates the through hole 2a provided in the housing 2 and presses the upper surface portion 3a of the relay member 3 arranged below the through hole 2a. Through port 2a
As will be described later, an open button receiving member 4 which also functions as a stopper for the relay member 3 is attached to the upper cabinet 2 of the housing by screws 10 and 10, as will be described later. The open button receiving member 4 keeps the vertical movement range limited.

Although the open button is not shown in FIG. 1, the open button is arranged so as to be exposed from the open button hole 2h of the upper cabinet 2 in a state of being stacked on the open button receiving member 4, as will be described later. By pressing the open button, the lid 1 is unlocked at the closed position, and the lid 1 is opened by the action of the spring member B.

When the lid 1 is closed, the relay member 3 is moved downward by the pressing operation of the protrusion 1a against the relay member 3, and the L-shaped protrusion 3b formed on the relay member 3 is removed. Through the through hole 4a of the open button receiving member 4,
The configuration is such that the tip portion 5a of the lid opening / closing detection switch portion 5 provided on the substrate 6 mounted in the lower cabinet 7 is pressed. Tip part 5a of the lid opening / closing detection switch part 5
Is an on / off switch that moves up and down, and is urged by a spring mechanism in the lid opening / closing detection switch section 5 so as to always be in the upward movement position (off position).

FIG. 2 is an exploded perspective view of the lock mechanism portion including the relay member 3 as seen from the lower side of the upper cabinet 2 in more detail.

Reference numeral 8 denotes an open button member. The open button member 8 has a rotating shaft 8a, and the rotating shaft 8a is formed inside the upper cabinet 2 of the housing.
Is pivotally supported. At this time, the open button 8c of the open button member 8 is exposed on the panel surface of the upper cabinet 2 from the open button hole 2h provided in the upper cabinet 2.

Reference numeral 9 is a lock member, and this lock member 9 is, as shown in an enlarged view in FIG.
a. Further, the shaft pin hole 9c is mounted in the upper cabinet 2 while being inserted into the shaft pin 2c formed in the upper cabinet 2. At this time, the extending portion 9d of the lock member 9 is different from the extending portion receiving pin 2d in FIG.
It comes into contact with the shaded portion in (a). At this time, the tip of the lock claw 9a is located below the through hole 2a formed in the upper cabinet 2 of the housing. The arrangement state is clearly shown in FIG. Further, at this time, the cam surface 9b formed on the lock member 9 comes into contact with the cam pin 8b formed on the open button member 8.

Further, a relay member 3 is provided in the upper cabinet 2 of the housing.
In, the guide member 2b for the relay member 3 formed so as to follow the outer shape of the relay member 3 is vertically movably fitted. After that, the open button receiving member 4 is fixed to the upper housing cabinet 2 so as to hold the relay member 3, the open button member 8, and the lock member 9 together with the upper housing cabinet 2.

That is, the guide pin receiving hole 4e formed in the open button receiving member 4 is inserted into the guide pin 2e formed in the upper cabinet 2 of the housing, and is inserted into the shaft pin receiving portion 4c formed in the open button receiving member 4. The shaft pin 2c formed in the upper cabinet 2 of the housing (the shaft pin hole 9c of the lock member 9 is already inserted) is inserted. Further screw 1
0 and 10 are inserted into the screw holes 4f and 4f of the open button receiving member 4 and screwed into the screw holes 2f and 2f of the upper cabinet 2 so that the open button receiving member 4 is fixed to the upper cabinet 2 To be done. The cutout portion 4d formed in the open button receiving member 4 is provided so that the extension portion receiving pin 2d of the upper cabinet 2 does not come into contact with the open button receiving member 4.

As described above, the open button receiving member 4
When the relay member 3 is fixed to the upper cabinet 2, the guide portion 2b into which the relay member 3 is fitted is closed by the upper surface of the open button receiving member 4, and the relay member 3 is vertically moved in the guide portion 2b by a predetermined amount. It will be held movably. At this time, the L-shaped projection 3b of the relay member 3 is in a state of being able to project from the through hole 4a of the open button receiving member 4,
The guide pin 3c of the relay member 3 is inserted into the pin receiving hole 4j of the open button receiving member 4.

As described above, the open button member 8 has its rotating shaft 8a pivotally supported by the pair of U-shaped bearing portions 2g of the upper cabinet 2 of the housing. In addition to this, the open button receiving member 4 is fixed to the upper cabinet 2 so that the I-shaped projection 4g (shown in FIG. 2c) formed on the open button receiving member 4 has an upper end portion of the U-shaped bearing portion 2g. Since the open button member 8 is positioned so as to be closed, the rotary shaft 8a of the open button member 8 is rotatable and is held so as not to fall off. Therefore, the open button 8c of the open button member 8 can be pressed by the user.

However, the open button stopper protrusion 4k (shown in FIG. 2C) formed on the open button receiving member 4
However, since it is located on the back side of the open button 8c, the pressable range of the open button 8c is limited to the position where it abuts against the open button stopper protrusion 4k. Further, since the open button receiving portion 4b formed of the open button receiving member 4 having elasticity is pressed against the handle portion 8d of the open button member 8,
The open button 8c is always urged to appear in the open button hole 2h.

As described above, the lock member 9 is supported by the upper cabinet 2 in a state where the shaft pin 2c of the upper cabinet 2 is inserted into the shaft pin hole 9c.
In addition to this, by fixing the open button receiving member 4 to the upper cabinet 2, a pair of protrusions 4h and curved protrusions 4i (both shown in FIG. 2 (c)).
Therefore, the unnecessary vertical movement of the lock member 9 is prevented, and only the rotation of the shaft pin 2c by a predetermined angle is possible.

By configuring each member and the like as described above, the lock mechanism portion operates. That is, when the lid 1 is in the closed position, as shown in FIG. 3B, the lock pawl 9a protruding from the lower portion of the through hole 2a and the lock pawl engaging member provided on the protrusion 1a of the lid 1 are provided. The stopper 1b is engaged and locked. When the user presses the open button 8c from the panel surface of the upper cabinet 2 from this state, the extending portion 9d is brought into contact with the extending portion receiving pin 2d by the action of the cam pin 8b and the cam surface 9c. Since the lock member 9 rotates a predetermined angle in the direction indicated by the broken line arrow in FIG. 2A while bending the extending portion 9d against the rotational position regulation, the lock claw 9a is also indicated by the broken line arrow. By moving to the side, the engagement between the lock claw 9a and the lock claw engaging portion 1b provided on the protrusion 1a is released, so that the lid 1 is opened by the action of the spring member B.

When the user releases the pressing operation of the open button 8c, the open button 8c is always urged by the open button receiving portion 4b so as to be exposed in the open button hole 2h as described above. The button 8c returns to the normal position. Further, when the open button 8c returns to the normal position, the pressing of the cam pin 8b against the cam surface 9b is released, so that the extending portion 9d is extended to the extending portion receiving pin 2d.
The force acts so as to return from the flexed state caused by the pressure contact with the lock member 9, and the lock member 9 returns to the normal rotation position.

On the other hand, when the lid 1 is moved from the open state shown in FIG. 3A to the closed position, the user presses the lid 1. As a result, when the tip portion of the projection 1a of the lid 1 enters the through hole 2a while pressing the lock claw 9a, the lock claw 9a is closed when the lid 1 is closed. It engages with the lock claw engaging portion 1b formed in 1a.
Therefore, the lid 1 is locked in the closed position (see FIG. 3).
(Shown in (b)).

The lid opening / closing detecting mechanism of the first embodiment will be described below. When the lid is in the open position, the protrusion 1a of the lid 1 is not in contact with the relay member 3 as shown in FIG. As described above, the relay member 3 is mounted in the guide portion 2b so as to be vertically movable, and when the lid portion is in the open position, the tip portion 5a of the lid portion opening / closing detection switch portion 5 detects the lid portion opening / closing. Since the L-shaped protrusion 3b formed on the relay member 3 is pushed up by the spring mechanism inside the switch portion 5, the relay member 3 becomes hollow inside the guide portion 2b. At this time, the tip portion 5a of the lid opening / closing detection switch portion 5
Is not pressed at all, that is, in the off state, the lid opening / closing detection switch unit 5 detects that the lid is in the open position.

On the other hand, when the lid is in the closed position, the state shown in FIG.
As shown in (b), the lock claw 9a is the lock claw locking portion 1
The lid portion 1 is locked in the closed position by engaging with b, but at this time, the tip portion of the protrusion portion 1a is the relay member 3
The upper surface abutting portion 3a ₁ , which is a part of the upper surface portion 3a, is pressed. The pressing operation of the protrusion 1a causes the relay member 3 to move downward, so that the L-shaped protrusion 3b formed on the relay member 3 presses the tip portion 5a of the lid opening / closing detection switch unit 5 to cause the lid portion to move. Tip 5a of open / close detection switch unit 5
Moves downward, that is, is turned on, so that the lid opening / closing detection switch unit 5 detects that the lid 1 is in the closed position.

Thus, the relay member 3 is added to the lid opening / closing detection mechanism.
Since the protrusion 1a can be shortened by the length of relaying the protrusion 1a and the lid opening / closing detection switch 5a, that is, the length A shown in FIG. 3B, the protrusion 1a has insufficient strength. And the appearance does not deteriorate.

Further, since the L-shaped projection 3b is provided, the area of the contact portion of the lid opening / closing detection switch portion 5 with the tip portion 5a can be widened, so that the pushing operation with respect to the tip portion 5a can be surely performed. It can be carried out.

The lower surface 3d of the relay member 3 is in contact with the upper surface of the open button receiving member 4 fixed to the upper cabinet 2 of the housing. That is, since the open button receiving member 4 which is a part of the lock mechanism portion functions as a stopper for the relay member 3, the downward movement of the relay member 3 is regulated even when a strong pressing operation by the protrusion 1a is received. Therefore, the lid opening / closing detection switch unit 5 of the L-shaped projection 3b
The pressing operation on the front end portion 5a is also restricted, and the lid opening / closing detection switch unit 5 is not burdened.

The contact portion between the protrusion 1a and the upper contact portion 3a ₁ and the end portion 5a of the lid opening / closing detection switch portion 5 and L
The contact portion with the character-shaped protrusion 3b is configured so as not to be on the same stroke line of the pressing operation, so that the protrusion portion 1a is formed.
Is transmitted to the L-shaped projection 3b when the relay member 3 is excessively pressed, the contact between the projection 1a and the upper surface contact portion 3a ₁ and the lid opening / closing detection switch The tip portion 5a of the portion 5 and the contact portion of the L-shaped projection 3b are further smaller than in the case where they are on the same stroke line of the pressing operation. Therefore, it is possible to reduce the load on the lid opening / closing detection switch unit 5 as well as cushioning the play between the relay member 3 and the open button receiving member 4. As a result of these, damage to the lid protrusion 1a, the lid opening / closing detection switch unit 5, and the like is avoided when an excessive force is applied to the lid 1 in the closing direction of the lid 1.

Further, as shown in FIG. 3, the relay member 3 itself shields between the through hole 2a for the projection 1a and the substrate 6 on which the lid opening / closing detection switch 5 is provided. Therefore, when the lid portion 1 is in the open state, the through hole 2a through the substrate 6
You will not be able to see through and the appearance will not deteriorate. In addition, it is possible to reliably prevent foreign matter from being inserted into or mixed with the inside of the housing.

FIG. 4A is a partial sectional view showing the second embodiment. In this embodiment, as shown in FIG.
1 has an extension portion 11a, and is resin-molded so as to have a screw hole portion 11b at an end portion of the extension portion 11a. A screw fixing hole 2i is provided in the upper cabinet 2 and the screw 12 penetrates the screw hole portion 11b and is fixed by the screw fixing hole 2i. When the protrusion 1a of the lid portion 1 pushes the relay member 11, the extension portion 11a (which has elasticity by resin molding) bends to allow the relay member 11 to move up and down, and the L-shaped protrusion 11c detects the lid portion opening / closing. The tip portion 5a of the switch portion 5 can be pressed. Even with the above configuration, it is possible to obtain the same effect as that of the first embodiment. The same effect can be obtained by welding and fixing the joint surface of the upper cabinet 2 and the relay member 11 instead of screwing them together.

As a third embodiment, as shown in FIG. 4B, the relay member 13 has a handle portion 13b, and the handle portion 1
It is formed to have a rotating shaft 13a at the end of 3b. The rotating shaft 13a is provided with a bearing portion 2j provided in the upper cabinet 2 and a bearing protrusion 4 provided in the open button receiving member 4.
By holding it together with m, the relay member 13
Is rotatable about a rotating shaft 13a, and the L-shaped protrusion 13c can press the tip 5a of the lid opening / closing detection switch 5 in accordance with the pressing operation of the protrusion 1a of the lid 1. Becomes Even with this structure, the same effect as that of the first embodiment can be obtained.

Next, a fourth embodiment will be described. FIG. 5 is a side view of the CD player, and a part of the periphery of the lid opening / closing detection switch section 5 is a sectional view.

In FIG. 5, since the lid opening / closing detection switch section 5 is located away from the lid locking mechanism section, the protrusion 1a is used only as a part of the lid locking mechanism section, and a new protrusion is formed. The portion 1d is formed on the lid portion 1 and the through hole 2k is provided in the upper cabinet 2 so that the protruding portion 1d penetrates through the through hole 2k and performs a pressing operation on the tip portion 5a of the lid opening / closing detection switch portion 5. I am trying.

In such a case, a film-like sheet 20 can be used as a relay member, as shown in the enlarged cross-sectional view of the peripheral portion of the lid opening / closing detection switch section 5 in FIG. As the film-like sheet 20, for example, a rectangular vinyl chloride sheet having a thickness of about 0.1 mm is used. An adhesive surface 20a is provided at one end of the film-like sheet 20 to apply an adhesive, Alternatively, processing such as attaching adhesive paper is performed.

The adhesive surface 20 of the film sheet 20
The film sheet 20 is fixed by adhering a to the upper cabinet 2 so that the free end 20b of the film sheet 20 is located above the tip 5a of the lid opening / closing detection switch unit 5. The positional relationship between the film sheet 20 and the lid opening / closing detection switch section 5a is shown in FIG.

As shown in FIG. 6, when the lid 1 is in the closed position, the protrusion 1d is the free end 20 of the film-like sheet 20.
The pressing operation is performed on b, and the free end 20b further presses the tip portion 5a of the lid opening / closing detection switch unit 5.

On the other hand, the lid 1 is in the open position, and the protrusion 1d
If the pressing operation of is not performed, the film-like sheet 20
Has its own weight, and the free end 20b comes into contact with the front end portion 5a of the lid opening / closing detection switch portion 5, but since the film sheet 20 is extremely lightweight, the lid opening / closing detection switch portion 5 is turned off. There is no problem in maintaining the state (the state in which the tip portion 5a is most protruded).

Conventionally, as shown in FIG. 8 (a), the tip of the projection 1d shown by the broken line is the lid opening / closing detection switch unit 5 shown by the solid line.
Although the area which can press the tip 5a of the sheet is limited, the tip of the projection 1d can be opened and closed as shown in FIG. 8B by configuring the film sheet 20 as a relay member as described above. Even if the film-shaped sheet 20 is displaced with respect to the front end portion 5a of the detection switch unit 5, the front end portion 5 of the film-shaped sheet 20 is wide.
a can be contacted. That is, the range in which the tip portion 5a of the lid opening / closing detection switch portion 5 can be properly pressed (that is, the contact area of the film sheet 20 with the tip portion 5a) is widened,
Even if the pressing of the protruding portion 1d deviates from the lid opening / closing detection switch portion 5, it is possible to reliably perform the pressing operation on the tip portion 5a.

Further, the film-like sheet 20 can shield the through-hole 2k provided in the upper cabinet 2 from the substrate 6.

In particular, in this case, since only the film-like sheet is used and no space or processing for the relay member is required, the above effect can be obtained at low cost.

The structure of each mechanism and the shape of parts in the present invention are not limited to those in the above embodiment, but various modifications can be made.

[0051]

As described above, the present invention provides an electronic device having a lid opening / closing detection mechanism in which the opening / closing of the lid is detected by the pressed state of the lid opening / closing detection switch provided inside the housing. A relay member that presses the lid opening / closing detection switch by contacting the projection formed on the lid when the portion is closed is provided between the projection and the lid opening / closing detection switch. The provision makes it possible to shorten the protrusion. Therefore, without damaging the appearance of the electronic device,
Further, there is an effect that the strength of the protrusion is improved, and the damage is prevented. In addition, it is possible to reduce the possibility that the software such as a CD will be damaged by bringing it into contact with the protrusion.

Further, since the area of the portion of the relay member that presses the tip of the lid opening / closing detection switch section can be made large, the pushing operation of the tip of the lid opening / closing detection switch section is surely performed, and the electronic operation is ensured. Does not cause equipment malfunction.

Further, since the relay member is provided, it is possible to shield between the through hole for the protrusion provided on the housing and the substrate portion provided with the lid opening / closing detection switch section. Therefore, there is an effect that the substrate portion becomes invisible from the through hole and the appearance of the electronic device is not impaired when the lid portion is in the open state. Furthermore, since foreign matter is not mixed in or inserted through the through hole, there is an effect that it is possible to prevent damage to the internal mechanism and circuit failure due to electrostatic breakdown or short circuit.

Further, by causing a part of the lid lock mechanism portion to function as a stopper portion for restricting the pressing operation of the relay member with respect to the lid opening / closing detection switch portion, the relay member is excessively moved relative to the lid portion opening / closing detection switch portion. The pressing stroke of the protrusion to the relay member and the pressing stroke of the relay member to the lid opening / closing detection switch unit are not on the same line. The pressure can be buffered and transmitted to the lid opening / closing detection switch section. By these measures,
Even when an unreasonable pressing force is applied to the lid portion from the outside, it is possible to avoid damage to the lid opening / closing detection switch portion, the board, and other parts.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a housing and a lid opening / closing detection mechanism portion of an electronic device according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a lock mechanism portion of the electronic device according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a lid opening / closing detection mechanism portion of the first embodiment of the electronic apparatus of the present invention.

FIG. 4 is a cross-sectional view of a lid opening / closing detection mechanism of second and third embodiments of the electronic device of the present invention.

FIG. 5 is a side view of a housing according to a fourth embodiment of the electronic device of the present invention.

FIG. 6 is a cross-sectional view of a lid opening / closing detection mechanism of the fourth embodiment of the electronic device of the present invention.

FIG. 7 is a perspective view showing a positional relationship between a lid opening / closing detection switch section and a film sheet according to a fourth embodiment.

FIG. 8 is an explanatory diagram comparing a contact surface of the lid opening / closing detection switch unit with respect to the tip end of the conventional example and the fourth example.

FIG. 9 is a cross-sectional view of a lid opening / closing detection mechanism in a conventional electronic device.

[Explanation of symbols]

1 lid part 1a, 1d protrusion part 2 cabinet upper cabinet 2a through hole 2b guide part 3, _11, 13 relay member 3a ₁ top surface contact part 3b L-shaped protrusion 4 open button receiving member 5 lid part open / closed detection switch part 5a tip part 8 Open button member 9 Lock member 20 Film sheet

Claims (5)

[Claims] 1. An electronic device having a lid opening / closing detection mechanism in which opening / closing of a lid is detected by a pressed state of a lid opening / closing detection switch provided inside the housing, and a protrusion is formed on the lid. A relay member that presses the lid opening / closing detection switch when the lid is in a closed state to press the lid opening / closing detection switch between the projection and the lid opening / closing detection switch. An electronic device characterized by being provided. 2. A lock mechanism portion for holding the lid portion in a closed position, and a part of the lock mechanism portion is configured to limit a pressing stroke of the relay member with respect to the lid portion opening / closing detection switch portion. The electronic device according to claim 1, wherein: 3. The contact stroke between the relay member and the protrusion is prevented so that the stroke of the protrusion by the protrusion to the relay member and the stroke of the relay member by the relay to detect the lid opening / closing detection switch are not on the same line. The electronic device according to claim 1 or 2, wherein a contact portion and a contact portion between the relay member and the lid opening / closing detection switch portion are set. 4. A part of the relay member is fixed, and the free end of the relay member is configured to press the lid opening / closing detection switch unit by the pressing operation of the protrusion. The electronic device according to claim 1, claim 2, or claim 3. 5. The electronic device according to claim 1, wherein the relay member is made of a film-like sheet.