JP3754318B2 - Opening / closing lid locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device for an open / close lid provided to be displaceable between an open position and a closed position so as to cover a disk mounting portion of an electronic device, for example, a disk player.
[0002]
[Prior art]
An optical disk player configured to perform an operation of reading a signal recorded on a disk by using an optical pickup is widely used. Such a disk player has a disk mounted thereon and the disk is loaded. It has a turntable that rotates.
[0003]
As a typical optical disc player, a CD player is generally well-known. Among such CD players, a headphone stereo type portable CD configured to listen to reproduced sound through headphones is included. There is a player. Recently, a CD-ROM player used in combination with a computer and a disk recording / reproducing apparatus capable of performing a recording operation on a disk have become widespread.
[0004]
[Problems to be solved by the invention]
2. Description of the Related Art A portable disc recording / reproducing device is provided with a disc mounting portion on the upper surface of the device, and generally includes an opening / closing lid that covers the mounting portion. Such a disc recording / reproducing apparatus is provided with a mechanism for opening and closing the opening / closing lid, but generally, at the locking position of the opening / closing lid by the pressing force to the operation button provided for performing the opening operation. Since it is configured to release the lock, there is a problem that not only the operability is bad but also the operation feeling is bad.
[0005]
The present invention is intended to provide a lock device for an open / close lid that solves such a problem.
[0006]
[Means for Solving the Problems]
The lock device according to the present invention includes a lock portion and a lock control portion formed on an open / close lid provided to be displaceable between an open position and a closed position, and the open / close lid by engaging with the lock portion. A lock holding portion for holding the lock holding portion in a closed position and a control portion for controlling a holding operation by the lock holding portion by contacting the lock control portion, and a rotation portion attached to the mounting substrate. A first control member, a first spring that urges the first control member to rotate in a direction to hold the opening / closing lid in a closed position, and a first control member that is rotatably attached to the mounting substrate. A second control member that contacts the member and positions the first control member; and rotates the second control member in a direction against a biasing force of a first spring that biases the first control member. The second spur to be energized A third control member rotatably attached to the mounting substrate and connected to the second control member by a third spring, a suction position held by a magnet, and a distance from the magnet. And a suction member that is displaceably provided between the third control member and a connecting pin.
[0007]
【Example】
FIG. 1 is a bottom view showing a state in which each member is in an unlocked position, FIG. 2 is a bottom view showing a state in which each member is in a locked position, and FIG. 4 is a side cross-sectional view of the main part showing a state in the open position, FIG. 4 is a side cross-sectional view of the main part showing a state in which the open / close lid is between the open position and the closed position, and FIG. It is a sectional side view of the principal part which shows the state which exists in.
[0008]
In the figure, reference numeral 1 denotes an opening / closing lid provided so as to be displaceable between an open position shown in FIG. 3 and a closed position shown in FIG. 5 with respect to a main body (not shown) of the disc recording / reproducing apparatus. The lock portion 2 and the lock control portion 3 are integrally formed of the opening / closing lid 1 and synthetic resin as shown in the figure, and are urged to rotate to the open position shown in FIG. 3 by elastic means (not shown). . In such a configuration, the lock portion 2 is formed with an engaging portion 2A and an inclined portion 2B that perform a locking action, and the lock control portion 3 is formed with a first inclined portion 3A and a second inclined portion 3B. Yes.
[0009]
As described above, the opening / closing lid 1 is formed. Next, the locking mechanism will be described. 1 and 2 are bottom views of the lock device as viewed from below, and are attached and fixed to the main body of the disk recording / reproducing apparatus.
[0010]
In FIG. 1, reference numeral 4 denotes an attachment substrate, and through holes 5 and 6 are formed through which the lock portion 2 and the lock control portion 3 formed in the opening / closing lid 1 are inserted. Reference numeral 7 denotes a first control member rotatably attached to the attachment substrate 4 by a screw 8, and a lock holding portion 9 that holds the opening / closing lid 1 in a closed position by engaging with the lock portion 2. And the control part 10 which controls the holding | maintenance operation | movement by the said lock holding | maintenance part 9 by contacting with the said lock | rock control part 3 is formed. In this configuration, the lock holding portion 9 is formed with an engaging portion 9A that engages with the engaging portion 2A of the lock portion 2 and an inclined portion 9B that contacts the inclined portion 2B. Are formed with a first inclined portion 10A and a second inclined portion 10B which are in contact with the first inclined portion 3A and the second inclined portion 3B of the lock control portion 3, respectively. Reference numeral 11 denotes an abutting portion formed on the first control member 7, and 12 denotes a first spring having one end attached to the first control member 7 and the other end attached to the mounting substrate 4. The first control member 7 is urged to rotate clockwise.
[0011]
Reference numeral 13 denotes a second control member rotatably attached to the mounting substrate 4 by a screw 14, and a contact piece 15 that contacts the contact portion 11 formed on the first control member 7 and a contact. A portion 16 is formed and is urged to rotate clockwise by the second spring 17. In such a configuration, the rotational force of the second control member 13 due to the elastic force of the second spring 17 is set to be stronger than the rotational force of the first control member 7 due to the elastic force of the first spring 12. . That is, the rotation position of the first control member 7 is regulated by the contact relationship between the contact portion 11 and the contact piece 15 formed on the second control member 13.
[0012]
Reference numeral 18 denotes a third control member that is rotatably attached to the mounting substrate 4 with screws 14, and a contact protrusion 19 that contacts the contact portion 16 formed on the second control member 13 is formed. And is connected to the second control member 13 by a third spring 20. In such a configuration, the third control member 18 is configured such that its rotational position is regulated by the contact relationship between the contact protrusion 19 and the contact portion 16 formed on the second control member 13. Yes.
[0013]
Reference numeral 21 denotes a suction member made of a magnetic material and connected to the third control member 18 by a connection pin 22. Reference numeral 23 denotes a magnet fixed to the mounting substrate 4. The suction member 21 is in the position shown in FIG. Sometimes, the adsorbing member 21 is adsorbed. Reference numeral 24 denotes an electromagnetic coil provided in the vicinity of the magnet 23, which is energized during the unlocking operation and has an action of reducing the attractive force by the magnet 23.
[0014]
As described above, the locking device of the present invention is configured, and the operation thereof will be described next. FIG. 3 shows a state in which the opening / closing lid 1 is in the open position, and in this state, the lock mechanism is in the unlocked state shown in FIG. In such a state, the attracting member 21 is at a position separated from the magnet 23 as shown in the figure, and the attracting member 21 is not attracted by the magnet 23.
[0015]
When the opening / closing lid 1 is pressed in the closed position direction, that is, in the direction of arrow A from the state shown in FIG. 3, the second inclined portion 3 </ b> B of the lock control portion 3 formed on the opening / closing lid 1 becomes the first control member 7. It abuts on the second inclined portion 10B of the formed control portion 10. As a result, the control unit 10 is pressed and displaced in the direction of arrow B in FIG. 3, resulting in the state shown in FIG. When the control unit 10 is pressed and displaced in the direction of arrow B in FIG. 3, the first control member 7 on which the control unit 10 is formed is rotationally displaced in the clockwise direction in FIG.
[0016]
When the first control member 7 is rotated and displaced in the clockwise direction, the pressing force by the contact portion 11 formed on the first control member 7 acts on the contact piece 15 of the second control member 13. The second control member 13 is rotationally displaced counterclockwise against the urging force of the second spring 17. When the second control member 13 is pivotally displaced in the counterclockwise direction, the second control member 13 is connected to the third spring 20 and the position thereof is regulated by the contact portion 16 and the contact protrusion 19. The third control member 18 is rotated and displaced counterclockwise.
[0017]
When the third control member 18 is rotationally displaced counterclockwise, the attracting member 21 connected to the third control member 18 by the connecting pin 22 is displaced in the direction of the arrow C, that is, the direction of the magnet 23. When the attracting member 21 is displaced in the direction of the arrow C, the attracting member 21 is attracted by the magnet 23, and the attracting member 21 is attracted and held at the attracting position shown in FIG.
[0018]
When the suction member 21 is displaced to the lock position shown in FIG. 2, the third control member 18 connected to the suction member 21 by the connecting pin 22 is held at the lock position shown in FIG. Become. When the third control member 18 is displaced to the lock position, the contact control portion 19 formed on the second control member 13 by the contact protrusion 19 formed on the third control member 18 restricts the first control member 18. 2 The control member 13 is held against the rotational biasing force of the second spring 17 at the locked position shown in FIG. 2, that is, the position displaced in the counterclockwise direction from the unlocked position shown in FIG. become.
[0019]
When the second control member 13 is rotationally displaced to the unlocked position shown in FIG. 2, the first control member 7 whose rotational position is regulated by the second control member 13 is shown in FIG. 2 from the position shown in FIG. It can be pivotally displaced to the locked position. When the first control member 7 is in the locked position shown in FIG. 2, the clockwise rotation position is restricted by the contact piece 15 formed on the second control member 13, but the counterclockwise direction. The rotational displacement operation is possible.
[0020]
As described above, when the opening / closing lid 1 is displaced in the closing position direction, the second inclined portion 3B of the lock control portion 3 formed on the opening / closing lid 1 is formed on the first control member 7. The second control member 13, the third control member 18, and the suction member 21 are moved from the unlocked position shown in FIG. 2 in accordance with the displacement operation of the first control member 7 by abutting and pressing the second inclined portion 10B. The displacement operation up to the lock position shown in FIG.
[0021]
FIG. 4 shows a state in the middle of displacing the opening / closing lid 1 from the open position shown in FIG. 3 to the closed position shown in FIG. 5, and the first control member 7 is rotated and displaced in the most clockwise direction. It is. In such a state, the third control member 18 is in a position where the attracting member 21 is attracted to the magnet 23, and the displacement operation in the counterclockwise direction is prevented from the position shown in FIG. At this time, the second control member 13 is largely rotated and displaced counterclockwise by the first control member 7, but the overstroke generated at this time is absorbed by the third spring 20. 3 The control member 13 or the like is not damaged.
[0022]
When the above-described displacement operation of each member to the lock position is performed, the lock holding portion 9 formed on the first control member 7 is displaced to a position where it can engage with the lock portion 2 formed on the opening / closing lid 1. Will do. When the lock holding portion 9 formed on the first control member 7 is displaced to an engageable position, the lock portion 2 formed on the opening / closing lid 1 in accordance with the displacement operation of the opening / closing lid 1 to the closed position. The inclined part 2 </ b> B contacts the inclined part 9 </ b> B of the lock holding part 9. As a result, the lock holding portion 9 is pressed and displaced in the arrow B direction by the pressing force received from the lock portion 2. That is, the first control member 7 is rotationally displaced counterclockwise against the urging force of the first spring 12.
[0023]
After such an operation is performed, when the opening / closing lid 1 is displaced to the closed position, the contact between the inclined portion 2B of the lock portion 2 and the inclined portion 9B of the lock holding portion 9 formed on the opening / closing lid 1 will be described. As shown in FIG. 5, the contact relationship is cut off, and the engagement portion 2 </ b> A of the lock portion 2 and the engagement portion 9 </ b> A of the lock holding portion 9 are engaged. The state shown in FIG. 5 shows a state in which the opening / closing lid 1 is locked and held in the closed position. The opening / closing lid 1 includes the engaging portion 2A of the lock portion 2 and the engaging portion 9A of the lock holding portion 9. Is held in the closed position against the urging force in the open position direction by the elastic means.
[0024]
As described above, the closing operation of the opening / closing lid 1 is performed. Next, the opening operation of the opening / closing lid 1 will be described. When the open / close lid 1 is in the closed position shown in FIG. 5, the lock mechanism is in the state shown in FIG. In such a state, when the opening / closing lid 1 is opened, the electromagnetic coil 24 is energized.
[0025]
When the electromagnetic coil 24 is energized, the attractive force by the magnet 23 is reduced. As a result, the clockwise biasing force of the third control member 18 by the second spring 17 that biases the second control member 13 in the clockwise direction is larger than the attracting force by the magnet 23 on the attracting member 21. . Accordingly, the second control member 13 and the third control member 18 are rotationally displaced from the locked position shown in FIG. 2 to the unlocked position shown in FIG. 1, and the suction member 21 is displaced in the direction of arrow D.
[0026]
As described above, when the second control member 13 is rotated and displaced clockwise, the first control member 7 whose position is regulated by the contact piece 15 formed on the second control member 13 is counterclockwise. It can be rotated and displaced. When the first control member 7 is pivotally displaced in the counterclockwise direction, the lock holding portion 9 formed on the first control member 7 is displaced in the arrow B direction, that is, in the unlocked position direction in FIG. As a result, the engaging relationship between the engaging portion 9A formed on the lock holding portion 9 and the engaging portion 2A formed on the lock portion 2 is cut off. When such an operation is performed, the holding operation of the open / close lid 1 in the closed position is interrupted, so that the open / close lid 1 is displaced to the open position by the biasing force of the elastic means.
[0027]
As described above, the unlocking operation at the closed position of the opening / closing lid 1 is performed. However, when the displacement operation to the opening position of the opening / closing lid 1 is performed, the first inclined portion 10A of the control unit 10 is moved to the lock control unit 3. Since the first control member 7 is rotationally displaced by contacting the first inclined portion 3A, the opening / closing lid 1 can be displaced to the open position without any trouble.
[0028]
【The invention's effect】
The lock device according to the present invention includes a lock portion and a lock control portion formed on an open / close lid provided to be displaceable between an open position and a closed position, and the open / close lid by engaging with the lock portion. A lock holding portion for holding the lock holding portion in a closed position and a control portion for controlling a holding operation by the lock holding portion by contacting the lock control portion, and a rotation portion attached to the mounting substrate. A first control member, a first spring for urging the first control member in a direction to lock and hold the opening / closing lid in the closed position, and a first spring that is pivotally attached to the mounting substrate and the first spring A second control member that contacts the control member and positions the first control member, and rotates the second control member in a direction that resists the biasing force of the first spring that pivots and biases the first control member. Second to be energized A pulling member, a third control member rotatably attached to the attachment substrate and connected to the second control member by a third spring, an attracting position attracted and held by a magnet, and separated from the magnet The first control is configured by an adsorption member that is displaceable between the non-adsorption position and is connected to the third control member by a connection pin, and the first control is performed by an adsorption force of the magnet to the adsorption member. Since the lock holding operation in the closed position of the opening / closing lid by the member is performed, there is an advantage that the lock mechanism for holding the opening / closing lid in the closed position is simplified.
[0029]
According to the present invention, an electromagnetic coil is provided in the vicinity of the magnet, and the lock holding operation in the closed position of the opening / closing lid by the first control member is released by reducing the attractive force of the magnet by energizing the electromagnetic coil. Since this is done, that is, since the unlocking operation can be performed electronically, there is an advantage that not only excellent operability but also a good operational feeling can be obtained.
[Brief description of the drawings]
FIG. 1 is a bottom view showing a state in which each member of the present invention is in an unlocked position.
FIG. 2 is a bottom view showing a state in which each member of the present invention is in a locked position.
FIG. 3 is a side sectional view of a main part showing a state in which the opening / closing lid is in an open position.
FIG. 4 is a side cross-sectional view of the main part showing a state in which the open / close lid is between an open position and a closed position.
FIG. 5 is a side sectional view of a main part showing a state in which the opening / closing lid is in a closed position.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Opening / closing lid 2 Lock part 3 Lock control part 4 Mounting board 7 1st control member 9 Lock holding part 10 Control part 12 1st spring 13 2nd control member 17 2nd spring 18 3rd control member 20 3rd spring 21 Adsorption member 22 connecting pin 23 magnet 24 electromagnetic coil

Claims (2)

A lock part and a lock control part formed on an open / close lid provided to be displaceable between an open position and a closed position, and the open / close cover is held in the closed position by engaging with the lock part. A first control member, which is formed with a control unit that controls a holding operation by the lock holding unit by contacting the lock holding unit and the lock control unit, and is rotatably attached to the mounting substrate; A first spring for urging and urging the control member in a direction to lock and hold the opening / closing lid in a closed position; and a first spring that is rotatably attached to the mounting substrate and abuts on the first control member; A second control member for positioning the first control member; and a second spring for biasing the second control member in a direction against a biasing force of the first spring for biasing the first control member. And the mounting A third control member rotatably attached to the plate and connected to the second control member by a third spring; an attracting position attracted and held by a magnet; and a non-adsorbing position away from the magnet And an opening / closing lid formed by the first control member by an adsorption force of the magnet to the adsorption member. A locking device for an opening / closing lid, wherein the lock holding operation is performed in the closed position. An electromagnetic coil is provided in the vicinity of the magnet, and the lock holding operation in the closed position of the opening / closing lid by the first control member is released by reducing the attractive force of the magnet by energizing the electromagnetic coil. The locking device according to claim 1.

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