JPH08254057A - Portable type electronic equipment - Google Patents

Abstract

PURPOSE: To facilitate the opening and closing manipulation of an opening and closing member by holding a latch at its unlocking position through the intermediary of a holding means when the latch is slid from its lock position to its unlocking position. CONSTITUTION: When a display unit 13 is turned downward from an open position, a pawl part 37 at the tip end of a latch piece 32 faces an engaging hole 38, and a cam surface 36a comes in contact with an opening edge part 39 so that the pawl part 36 enters an engaging hole 38. Further, since the cam surface 36a is inclined, a latch piece 32 is forced to slide from its lock position to an unlock position, and is forced to push back toward its lock position by means of a compression coil spring 40. In order to open the display unit, the latch piece 32 is pressed toward the unlock position by means of a nip 41 so that a first convex part 44 is caught by a second convex part 45 of the engaging hole 38, and accordingly, the latch piece 32 is held at the unlock position, overcoming the coil spring 40, and accordingly, the latch piece 32 is inhibited from returning to the lock position even though a finger tip is separated from the nip 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device such as a portable computer, and more particularly to a structure for holding a display unit in a closed state.

[0002]

2. Description of the Related Art A book-type or notebook-type portable computer has the advantage that it is easy to carry and can be used freely by using a built-in battery pack as a power source even in places where commercial power cannot be obtained. There is.

This type of computer is provided with a device main body having a keyboard on its upper surface, and a flat display unit supported by a hinge at the rear of the device main body. The display unit is rotatable between a closed position that covers the keyboard from above and an open position that stands upright behind the keyboard. In the state where the display unit is rotated to the closed position, the computer is The whole has a flat box shape that is convenient for carrying.

By the way, a conventional computer has a latch mechanism for holding the display unit in a closed state when the computer is carried or not used. FIG. 9 shows a conventional latch mechanism 1, which comprises a pair of latches 3 supported by a display unit 2 and a pair of engagement holes 5 formed in a device body 4. There is.

The latch 3 has latch pieces 3a arranged on both left and right sides of the front surface 2a of the display unit 2. The latch piece 3a is projected from the front surface 2a of the display unit 2, and a claw portion 6 is integrally formed at a protruding end portion of the latch piece 3a. Further, the engagement hole 5 is for the latch piece 3a to be inserted and removed when the display unit 2 is rotated to the closed position, and is opened on the upper surface 4a of the device body 4.

The latch piece 3a has a knob 7 for hanging a fingertip, and the knob 7 is exposed on both left and right side surfaces of the display unit 2. And the latch piece 3
a is a lock position where the claw portion 6 is hooked on the opening edge portion 5a of the engagement hole 5 and the claw portion 6 is the opening edge portion of the engagement hole 5 when the display unit 2 is rotated to the closed position. The display unit 2 is slidably supported over the lock release position separated from the portion 5a, and the latch piece 3a is constantly pressed via the spring 8 toward the lock position.

The tip edge portion of the pawl portion 6 has a cam surface 6 inclined downward from the lock position to the unlock position.
a. The cam surface 6a comes into contact with the opening edge portion 5a of the engagement hole 5 when the display unit 2 is rotated from the open position to the closed position, and this contact causes the latch piece 3a to move. It is slid from the locked position to the unlocked position.

In the latch mechanism 1 having such a structure,
When carrying the computer, when the display unit 2 is rotated downward from the open position to the closed position, the claw portion 6 of the latch piece 3a faces the engagement hole 5, and the cam surface 6a of the claw portion 6 is engaged. Opening edge 5a of hole 5
To contact. When the latch piece 3a enters the engagement hole 5 as the display unit 2 rotates, the latch piece 3a moves toward the unlocked position while compressing the spring 8 based on the inclination of the cam surface 6a. To be slid.

When the display unit 2 reaches the closed position with the rotation of the display unit 2, the cam surface 6a is disengaged from the opening edge portion 5a of the engaging hole 5, and as shown by an arrow in FIG. 9 (a). Then, the latch piece 3 a is forcibly slid to the lock position via the spring 8. As a result, the claw portion 6 of the latch piece 3 a causes the engagement edge 5 to have the opening edge portion 5 a.
The display unit 2 is held in the closed position.

On the other hand, in order to rotate the display unit 2 held in the closed position toward the open position, first,
The knobs 7 are pressed by the fingertips of both hands to forcibly slide the latch piece 3a from the locked position to the unlocked position, as shown in FIG. 9 (b).

Then, the claw portion 6 of the latch piece 3a is engaged with the engaging hole 5
The latch piece 3a is detached from the opening edge 5a of
The display unit 2 is rotated upward while the knob 7 is held with the fingertip so as not to move from the unlocked position. By this rotation, the latch piece 3a is pulled out from the engagement hole 5, and the display unit 2 can be rotated toward the open position.

[0012]

However, in the above-mentioned conventional latch mechanism 1, since the latch piece 3a is constantly pressed toward the lock position, when the display unit 2 is opened, the latch piece 3a moves from the unlocked position. The knobs 7 must be held by the fingertips of both hands so that they will not move toward the locked position.

That is, when the display unit 2 is opened, it is necessary to perform two different operations at the same time, such as the operation of holding the latch piece 3a in the unlocked position and the upward rotation of the display unit 2 toward the opened position. is there. Therefore, when the display unit 2 is opened, the lock of the display unit 2 by the latch piece 3a may not be completely released, and there is room for improvement in terms of operability when opening the display unit 2. Has been done.

The present invention has been made under these circumstances, and an object of the present invention is to provide a portable electronic device which can easily open and close the opening and closing member and is excellent in operability.

[0015]

In order to achieve the above object, a portable electronic device according to a first aspect of the invention has a device body having an engaging portion on an upper surface thereof, and a device body supported by the device body. An opening / closing member that is rotatable over a closed position that covers the upper surface from above and an open position that stands up to expose the upper surface of the device body, and is installed on this opening / closing member,
When the opening / closing member is rotated to the closed position, a latch that can be artificially slid over a lock position that is hooked on the engagement portion of the device body and a lock release position that is disengaged from the engagement portion, A spring that constantly urges the latch toward the locked position.

The engaging portion between the engaging portion and the latch holds the latch in the unlocked position when the latch is slid to the unlocked position and opens the opening / closing member from the closed position. It is characterized in that it is provided with a holding means for releasing the holding of the latch when it is rotated toward the position.

According to a second aspect, the latch according to the first aspect has an elastically deformable latch piece that is slid between the lock position and the lock release position, and the engaging portion is The latch piece has an engagement hole into which the latch piece can be inserted and removed, and the holding means is formed at a first convex portion formed on a side surface of the latch piece and at an opening peripheral edge of the engagement hole. And a second convex portion to which the first convex portion is hooked when the latch piece is slid toward the unlocked position, and the first convex portion and the second convex portion are It is characterized in that they are separated from each other when the opening / closing members are rotated from the closed position toward the open position.

According to the third aspect, the second convex portion according to the second aspect is slid on the first convex portion when the latch piece is slid from the lock position toward the unlocked position. It is characterized in that it has a guide surface that is movably contacted and deforms the latch piece in a direction of separating from the second convex portion.

According to the fourth aspect, the engagement hole according to the second aspect presses the latch piece toward the second convex portion when the latch piece is slid to the unlocked position. It is characterized by having a pressing surface.

[0020]

According to the structure described in claim 1, in the state where the opening / closing member is held at the closed position, the latch is pressed to the lock position via the spring and hooked on the engaging portion of the device body. In order to rotate the opening / closing member toward the open position, first, a fingertip is attached to the operating portion, and the latch is slid from the lock position to the unlocking position via the operating portion. When the latch is slid toward the unlocked position, the holding means is present at the engaging portion between the latch and the engaging portion, so that the latch is held at the unlocked position via the holding means.

Therefore, at the same time that the locking of the opening / closing member by the latch is released, the free sliding of the latch is restricted, so that the latch does not return to the locked position even if the hand is released from the latch. Therefore, the operation of unlocking the opening / closing member and the operation of rotating the opening / closing member toward the open position can be performed independently of each other.

When the opening / closing member is rotated toward the open position, the holding of the latch by the holding means is released, and the latch is automatically returned to the locked position by the spring. Therefore, when the opening / closing member is rotated from the open position to the closed position, the latch is automatically caught by the engaging portion, and the opening / closing member can be held at the closed position.

According to the structure described in claim 2, the latch piece is inserted into the engagement hole when the opening / closing member is rotated to the closed position. When the latch piece is slid from the locked position to the unlocked position, the first protrusion of the latch piece elastically catches on the second protrusion of the opening edge of the engagement hole, and the latch is locked. Stop trying to return to. Therefore, the latch piece can be held in the unlocked position by a simple mechanical engagement between the first convex portion and the second convex portion, and the structure of the holding means can be simplified.

When the open / close member is rotated from the closed position to the open position, the first convex portion is separated from the second convex portion with the rotation of the open / close member, and the holding of the latch piece is released. It Therefore, the latch piece is automatically returned to the lock position, and no special releasing work is required.

According to the third aspect of the invention, when the latch piece is slid from the locked position to the unlocked position, the latch piece is brought into contact with the first convex portion and the guide surface. Be transformed. Then, when the first convex portion gets over the guide surface as the latch piece slides, the latch piece returns to its original shape due to the elasticity of the latch piece itself, and at this time, the first convex portion It gets caught in the second protrusion. Therefore, the first convex portion and the second convex portion are firmly engaged with each other, and the latch piece can be reliably held at the unlocked position.

According to the structure described in claim 4, when the latch piece is slid to the unlocked position, the latch piece is forced in the direction in which the first convex portion and the second convex portion are engaged with each other. Since the protrusions are pressed against each other, the protrusions are firmly engaged with each other, and the latch piece can be reliably held at the unlocked position.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings applied to a book type portable computer. FIG. 1 shows a book-shaped portable computer 11 of A4 size. The computer 11 includes a housing 12 as a device body and a flat panel type display unit 13 supported by the housing 12.

The housing 12 has a flat box shape having a flat upper surface 14. The upper surface 14 has a front half portion 14a that serves as a hand rest and a rear half portion 14 that is continuous with the front half portion 14a.
b, and a keyboard 15 is arranged in the latter half 14b.

A pair of left and right display support portions 17a and 17b are formed at the rear end of the rear half portion 14b. The display support parts 17a and 17b are located immediately behind the keyboard 15, and these display support parts 17a and 17b
The display unit 13 is supported between a and 17b via a hinge device (not shown).

The display unit 13 is rotatable between a closed position that covers the upper surface 14 of the housing 12 including the keyboard 15 and an open position that stands up immediately after the keyboard 15. Then, when the display unit 13 is rotated to the closed position, the entire computer 11 has a box shape that is convenient for carrying, as shown in FIG.

The display unit 13 has a flat housing 19 and a liquid crystal display 20 housed in the housing 19. The housing 19 has a flat front surface 19a, and a central portion of the front surface 19a is
A window portion 21 that exposes the liquid crystal display 20 is opened. The front surface 19a of the housing 19 faces the upper surface 14 of the housing 12 when the display unit 13 is rotated to the closed position.

By the way, such a computer 11
Includes a latch mechanism 25 for holding the display unit 13 in the closed position. The latch mechanism 25 is
A pair of left and right latches 26a and 26b supported by the housing 19 of the display unit 13 and a pair of left and right engaging portions 27a and 27b arranged on the upper surface 14 of the housing 12.
It has and. Since the latches 26a and 26b and the engaging portions 27a and 27b have the same structure on the left and right,
The one latch 26a and the engaging portion 27a will be described as a representative.

As shown in FIG. 5, a latch support portion 29 is formed inside the housing 19 of the display unit 13. The latch support portion 29 is provided on the housing 19
Is provided with a guide hole 30 extending along the front surface 19a, and the latch 26a is supported by the latch support portion 29.

The latch 26a is made of a synthetic resin material. The latch 26a integrally includes a guide pin 31 slidably inserted in the guide hole 30 and an elastically deformable latch piece 32. Have Latch piece 32
Is a slit 35 formed in the front surface 19a of the housing 19.
And penetrates through and is projected outward. A claw portion 36 is formed on the protruding tip portion of the latch piece 32, and the claw portion 36 is bent at a substantially right angle from the protruding tip portion of the latch piece 32.

The engaging portion 27a has an engaging hole 38 opened in the front half portion 14a of the upper surface 14. The engagement hole 38 is opened at a position facing the claw portion 36 of the latch piece 32 when the display unit 13 is rotated to the closed position. The claw portion 36 at the tip is designed to enter. The engaging hole 38 has an opening edge portion 39 on which the claw portion 36 is detachably hooked.

In the latch 26a, when the display unit 13 is rotated to the closed position, the claw 36 of the latch 26a is locked to the opening edge 39 of the engagement hole 38, and the claw 36 is engaged with the engagement hole 38. Is slidably supported by the latch support portion 29 over a lock release position where the latch 26a is disengaged from the opening edge portion 39, and the guide pin 31 and the guide hole 30 guide the slide of the latch 26a. It The latch 26a is constantly pressed by the compression coil spring 40 toward the lock position.

A cam surface 36a is formed at the tip of the pawl portion 36. The cam surface 36a is inclined downward as it goes from the locked position to the unlocked position.
The cam surface 36a slidably contacts the opening edge portion 39 of the engagement hole 38 when the display unit 13 is rotated downward from the open position toward the closed position. Therefore, when the display unit 13 is rotated further downward with the cam surface 36a in contact with the opening edge portion 39 of the engagement hole 38, the latch 26a causes the cam surface 36a to rotate.
It is adapted to slide from the lock position to the lock release position based on the shape of a.

The latch 26a is a knob 41 for operation.
have. The knob 41 is for hooking a fingertip when the latch 26a is operated to slide.
1 are exposed on both left and right side surfaces of the housing 19, respectively.

By the way, in the above computer 1, when the display unit 13 is rotated to the closed position and the latch piece 32 thereof is inserted into the engaging hole 38,
Holding means 43 for holding the latch piece 32 in the unlocked position is provided. The holding means 43 includes a first convex portion 44 formed on the side surface of the latch piece 32 and a second convex portion 45 formed on the peripheral edge of the opening of the engaging hole 36.

As shown in FIG. 5C, the first convex portion 4
4 and the second convex portion 45 have a first guide surface 44a and a second guide surface 45a that face each other along the sliding direction of the latch piece 32 when the latch piece 32 is in the lock position. There is. First and second guide surfaces 44
The a and 45a are inclined along the sliding direction of the latch piece 32, and the guide surfaces 44a and 45a are in contact with each other when the latch piece 32 is slid to the unlocked position. Then, due to this contact, the first convex portion 44 rides on the second convex portion 45, and the latch piece 32 is deformed in the direction away from the second convex portion 45.

Further, as shown in FIG. 6C, a pressing surface 47 facing the second convex portion 45 is formed on the inner surface of the engaging hole 38. The pressing surface 47 is for pressing the tip portion of the latch piece 32 along the sliding direction toward the second convex portion 45 when the latch piece 32 gets over the second convex portion 45. As a result, the elastic recovery of the latch piece 32 is assisted, and the first convex portion 44 is firmly caught by the second convex portion 45. Therefore, the latch piece 32 is held in the unlocked position, and the claw portion 36 and the opening edge 39 of the engagement hole 38 are held in a released state.

The first convex portion 44 is adapted to separate upward from the second convex portion 45 when the display unit 13 is rotated upward from the closed position toward the open position. The first convex portion 44 and the second convex portion 4
The engagement with 5 is automatically released.

The tip of the latch piece 32, which is in contact with the pressing surface 47, has an inclined surface 32 inclined along the pressing surface 47.
a. Next, the operation of the above configuration will be described.

As shown in FIG. 1, when the display unit 13 is rotated to the open position, the latch 26 is released.
The a is pressed to the lock position via the compression coil spring 40 and is held at this lock position. When the display unit 13 is rotated downward from the open position to the closed position, the claw portion 36 at the tip of the latch piece 32 faces the engaging hole 38 as shown in FIG. The cam surface 36 a of the portion 36 contacts the opening edge portion 39 of the engagement hole 38.

Then, when the display unit 13 is rotated further downward from this state, the claw portion 36 of the latch piece 32 enters into the engaging hole 38 and, as shown in FIG. 5A, the cam surface 36a. The latch piece 32 is forcibly slid from the locked position toward the unlocked position based on the inclination of the. By this slide, the compression coil spring 40 is gradually compressed, and the cam surface 36a is disengaged from the opening edge portion 39 of the engaging hole 38 as the latch piece 32 slides, and is latched via the compression coil spring 40. The piece 32 is forcibly pushed back toward the locked position.

As a result, as shown in FIG. 5A, when the display unit 13 is rotated to the closed position, the claw portion 36 of the latch piece 32 has the opening edge portion 3 of the engaging hole 38.
9, the display unit 13 is locked in the closed position.

On the other hand, in order to open the display unit 13 locked in the closed position, first, a fingertip is hooked on the knob 41 exposed on the side surface of the housing 19, and the knob 4
The latch piece 32 is pressed from the locked position to the unlocked position via 1. Due to this pressing, the first convex portion 44 of the latch piece 32 approaches the second convex portion 45 of the engaging hole 38, and the first guide surface 44a of the first convex portion 44 is moved as shown in FIG. The second guide surface 45a of the second convex portion 45 rides up. As a result, the latch piece 32 is deformed in the direction away from the second convex portion 45.

When the latch piece 32 is slid further,
The first convex portion 44 rides over the second convex portion 45. At the same time, the tip end portion of the latch piece 32 along the sliding direction comes into contact with the pressing surface 47 of the engagement hole 38, and the latch piece 32 is forcibly pressed toward the second convex portion 45. By this pressing, the elastic recovery of the latch piece 32 is assisted, and the first protrusion 4
4 is caught on the second convex portion 45. As a result, the display unit 13 is unlocked, and the latch piece 32 is held in the unlocked position.
Even if the fingertip is released from 1, the latch piece 32 will not be pushed back to the lock position.

Therefore, when the display unit 13 is rotated upward in this state, the latch piece 32 and the claw portion 36 are pulled out from the engaging hole 38, and the display unit 13 is rotated from the closed position to the open position. Can be moved.

When the display unit 13 is rotated upward, the first protrusion 44 of the latch piece 32 moves upward together with the display unit 13. Therefore, the first
Of the convex portion 44 of the engaging hole 38 is disengaged upward from the second convex portion 45, and the engagement between the first convex portion 44 and the second convex portion 45 is released. Therefore, the latch piece 32 is automatically returned to the locked position by the compression coil spring 40, and when the display unit 13 is rotated again toward the closed position, the latch piece 32 is moved as described above. 32
The claw portion 36 of is engaged with the opening edge portion 39 of the engagement hole 38.

With this structure, when the latch piece 32 is slid from the locked position to the unlocked position, the first protrusion 44 of the latch piece 32 is moved to the second position of the engagement hole 38.
Is caught by the convex portion 45 of the
Since it is held in the unlocked position against 0, the knob 41
Even if the fingertip is removed from, the return of the latch piece 32 to the locked position is prevented.

Particularly in the above embodiment, the latch piece 32
When the first convex portion 44 of the second convex portion 44 rides over the guide surface 45a of the second convex portion 45, the elasticity of the latch piece 42 itself restores the original shape, so that the first convex portion 44 becomes a second convex portion. The protrusion 45 is elastically hooked. Along with that, the latch piece 3
When the first protrusion 44 of No. 2 passes over the second protrusion 45, the latch piece 32 is forcibly pressed in the direction of the second protrusion 45. The engagement with the second convex portion 45 is further strengthened, and the latch piece 32 can be reliably held in the unlocked position.

Therefore, when the display unit 13 is opened, a troublesome operation such as pushing the knob 41 and rotating the display unit 13 upward is not required, and the operation of unlocking the display unit 13 and the display unit 13 are not necessary. The operation of rotating upward can be performed independently.

Therefore, the display unit 13 can be surely opened by a simple operation. Further, when the display unit 13 is rotated upward toward the open position, the first convex portion 44 is disengaged from the second convex portion 45, and the latch piece 32 is released from the holding state.
Is automatically returned to the locked position via the compression coil spring 40. Therefore, after the display unit 13 is opened, no special operation for releasing the holding of the latch piece 32 is required, and when the display unit 13 is rotated to the closed position again, the cam surface 36a of the claw portion 36 is engaged. The display unit 13 is locked by the claw portion 36 as it hits the opening edge portion 38a of the joint hole 38 as described above.

Therefore, the opening / closing operation of the display unit 13 is not adversely affected despite the fact that the latch piece 32 can be held in the unlocked position. Further, according to the above configuration, the latch piece 32 has the first
Since the convex portion 44 and the second convex portion 45 are held in the unlocked position by mere mechanical engagement, the structure of the latch mechanism 25 can be simplified without requiring a complicated structure.

The portable electronic device according to the present invention is not limited to a portable computer and may be another electronic device such as a word processor or an electronic notebook. Therefore, the opening / closing member is not limited to the display unit having the liquid crystal display, and may be a simple lid.

[0057]

According to the first aspect of the present invention, when the latch is slid from the lock position to the lock release position, the latch is held at the lock release position by the holding means. Also, the latch is prevented from returning to the locked position. Therefore, when opening the opening / closing member, it is not necessary to perform a troublesome operation such as rotating the opening / closing member while pressing the latch. Can be independently performed, and the opening / closing member can be surely opened by a simple operation. When the opening / closing member is rotated toward the open position, the holding of the latch by the holding means is released and the latch is automatically returned to the lock position. No special operation is required to cancel. At the same time, when the opening / closing member is rotated to the closed position again, the latch faces the engaging portion and is caught by the engaging portion, so that the latch can be held in the unlocked position, There is an advantage that the opening / closing operation of the opening / closing member performed subsequently is not adversely affected.

According to the second aspect, the latch piece can be held in the unlocked position by simple mechanical engagement, and the structure of the holding means can be simplified. Also,
When the opening / closing member is rotated from the closed position to the open position, the first convex portion is separated from the second convex portion with the rotation of the opening / closing member, and the latch is released. , It will be automatically returned to the locked position via the spring. Therefore, after opening the opening / closing member, a special work for releasing the holding of the latch piece is unnecessary, and the operability is improved.

According to the third aspect, when the first convex portion gets over the guide surface as the latch slides, the elasticity of the latch piece itself causes the latch piece to return to its original shape. Since the convex portion of is hooked on the second convex portion, the engagement between the first convex portion and the second convex portion becomes strong, and the latch can be reliably held in the unlocked position.

According to the fourth aspect, when the latch is slid to the unlocked position, the latch piece is forcibly pressed in the direction in which the first convex portion and the second convex portion are engaged with each other. Therefore, the protrusions are firmly engaged with each other, and the latch can be reliably held in the unlocked position.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a display unit of a portable computer according to an embodiment of the present invention is rotated to an open position.

FIG. 2 is a perspective view of the portable computer showing a state in which the display unit is rotated to a closed position.

FIG. 3 is a perspective view showing the vicinity of an engagement hole of a housing.

FIG. 4A is a perspective view showing a shape of an engagement hole. (B)
FIG. 6 is a perspective view showing the shape of a latch piece.

FIG. 5A is a cross-sectional view showing a state where the latch piece is slid to the lock position and the claw portion of the latch piece is engaged with the opening edge portion of the engagement hole. (B) is AA of (a) of FIG.
Sectional drawing which follows the line. 5C is a cross-sectional view taken along the line BB of FIG.

FIG. 6A is a cross-sectional view showing a state where the latch piece is slid to the unlocked position and the claw portion of the latch piece is disengaged from the opening edge portion of the engagement hole. FIG. 6B is a sectional view taken along the line CC of FIG. (C) is D- of (a) of FIG.
Sectional drawing which follows the D line.

FIG. 7A is a cross-sectional view showing a state where the latch piece is pulled out from the engagement hole. (B) is sectional drawing which follows the EE line of (a) of FIG.

FIG. 8 is a cross-sectional view showing a state in which the first convex portion rides on the second convex portion.

FIG. 9A is a cross-sectional view showing a state in which a latch piece is slid to a lock position and a claw portion of the latch piece is engaged with an opening edge portion of an engagement hole in a conventional latch mechanism.
In (b), the latch piece is slid to the unlocked position,
Sectional drawing which shows the state which the nail | claw part of this latch piece was isolate | separated from the opening edge part of an engagement hole.

[Explanation of symbols]

 12 ... Device main body (housing) 12a ... Upper surface 13 ... Opening / closing member (display unit) 26a, 26b ... Latches 27a, 27b ... Engaging portion 40 ... Spring (compression coil spring) 43 ... Holding means

Claims (4)

[Claims] 1. A device main body having an engaging portion on an upper surface, a closed position supported by the device main body and covering the upper surface of the device main body from above, and an open position standing upright to expose the upper surface of the device main body. An openable and closable member that can be rotated over the entire length, a lock position that is installed in the openable and closable member and that is engaged with the engaging portion of the device body when the opening and closing member is rotated to the closed position, and that is disengaged from the engaging portion. A latch that can be artificially slid over the unlocked position, and a spring that constantly biases the latch toward the locked position,
In the portable electronic device including: the engaging portion between the engaging portion and the latch holds the latch in the unlocked position when the latch is slid to the unlocked position, and the opening / closing member is also provided. A portable electronic device, comprising: holding means for releasing the holding of the latch when the is rotated from the closed position toward the open position. 2. The latch according to claim 1, wherein the latch includes an elastically deformable latch piece that is slid between the lock position and the lock release position, and
The engagement portion has an engagement hole into which the latch piece is removably inserted, and the holding means includes a first convex portion formed on a side surface of the latch piece and the engagement hole. Has a second convex portion formed on the peripheral edge of the opening of the latch portion, the second convex portion being caught by the first convex portion when the latch piece is slid toward the unlocked position, and the first convex portion and the second convex portion. The parts are detachable from each other when the opening / closing member is rotated from the first position to the second position. 3. The second convex portion according to claim 2, wherein the second convex portion slidably contacts the first convex portion when the latch piece is slid from the lock position toward the unlocked position. The portable electronic device is characterized in that it has a guide surface for deforming the latch piece in a direction of separating from the second convex portion. 4. The engagement hole according to claim 2, wherein the engagement hole has a pressing surface for pressing the latch piece toward the second convex portion when the latch piece is slid to the unlocked position. A portable electronic device characterized by being.