JP3586921B2 - Lid locking mechanism and electronic device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a lid locking mechanism that is rotatably supported at one side of an opening formed in a housing and that opens and closes this opening, and in particular, a relatively heavy battery is loaded inside. A lid lock mechanism and a lid lock suitable for use in a portable disk player or the like having a battery cover opened and opened on the main surface constituting the disk rotation space portion and opening and closing the battery storage portion. The present invention relates to an electronic device having a mechanism.
[0002]
[Prior art]
2. Description of the Related Art Various portable devices such as a portable disc player, a portable tape player, and a portable radio receiver have a dry cell or a rechargeable battery loaded in a battery housing formed as a part of a housing as an internal power supply. In general, the battery accommodating unit is supported by a cantilevered state so that one side is rotatable, and is opened and closed by a thin plate-like battery lid constituting an outer peripheral surface of the housing in a closed state. The battery lid is held in a state where the battery housing is closed by a lock mechanism.
[0003]
The lock mechanism includes a wedge-shaped engagement projection integrally formed on one side wall of the battery storage unit and a lock unit formed on the free end of the battery lid. The locking means has a thin elastic displacement portion integrally projecting from the free end of the battery lid and having a substantially U-shaped cross-section, and a locking portion formed on a side surface of the elastic displacement portion and engaging with the engaging projection. And a wedge-shaped lock projection to be combined. In the lock mechanism, an operation part is integrally formed at the tip of the elastic displacement part in order to open the battery storage part by rotating the battery lid when replacing the battery or the like.
[0004]
When the battery lid is rotated to close the battery housing, the elastic displacement portion is bent inward, so that the lock protrusions get over the engagement protrusions and relatively engage with each other. As a result, the battery accommodating section is kept closed. In addition, the battery cover, when the operation portion is strongly pulled up, the elastic displacement portion is bent inward, the engagement state between the lock protrusion and the engagement protrusion is released, and the battery storage portion is opened. .
[0005]
[Problems to be solved by the invention]
In the portable device provided with the above-described lock mechanism, the battery lid loaded in the battery storage unit is ejected outward by being accidentally dropped or the like and subjected to an impact, so that the locked state of the battery lid is released. In some cases, such a problem may occur. That is, a relatively heavy battery is loaded in the battery storage portion while being held on both sides by the terminal plate. When the battery is subjected to an impact, the battery violently hits the battery cover and pushes up the battery cover from the inside.
[0006]
For this reason, the locking mechanism leverages the operating part by the large push-up force applied to the battery lid, causes the elastic displacement part to bend, and moves the lock protrusion in the direction away from the engagement protrusion. Then, the engagement between the engagement projection and the lock projection is released, and the lock of the battery lid is released.
[0007]
By the way, in a portable device, generally, a battery housing is opened on an outer peripheral surface of a housing, and a battery lid is combined so as to constitute a part of the outer peripheral surface of the housing when the battery housing is closed. It is configured. On the other hand, in a portable disk player, a battery storage section is opened in a part of the main surface of the upper housing, which is a rotation area of the disk, in order to reduce the size of the entire disk, and a battery cover covers the battery storage section. In some cases, a structure in which the main housing and the base housing are combined so as to form substantially the same surface in a closed state may be employed.
[0008]
In the portable disk player configured as described above, it is not necessary to cut out a part of the control board in order to form the battery loading space, so that the mounting efficiency of the control board is improved. In addition, since the control board forms the bottom of the battery housing, the terminal board can be directly mounted, and has various features such that wiring and connectors are not required.
[0009]
However, in such a portable disc player, when the lock mechanism is released and the battery cover is rotated by an impact such as a drop as described above, the battery cover collides with the disc stored in the disc rotation space. In addition, a serious accident such as damaging the recording surface may occur.
Therefore, the present invention provides a lock mechanism for a lid body that can reliably maintain a locked state even when an impact such as a drop is applied by an extremely simple structure, and an electronic device including the lock mechanism for the lid body. It has been proposed for the purpose of providing.
[0010]
[Means for Solving the Problems]
the aboveThe present invention, which has achieved the object,In a locking mechanism for a lid body that is rotatably supported at one end of an opening formed in a housing and is capable of opening and closing an opening provided with locking means on a free end side, the housing includes an opening. A lock recess formed adjacent to the outside of the other end side wall, and a pair of wedge-shaped first engagements protruding into the lock recess from a side wall of the lock recess opposite to the other end side wall of the opening; A projection, a second engagement projection formed between the pair of first engagement projections and below the first engagement projection, and adjacent to the outside of the lock recess; And a locking means for the lid is integrated with the free end of the lid. An elastic displacement portion formed in a substantially U-shape continuous with the base portion, an operation portion formed on the distal end side of the elastic displacement portion and facing the finger hook guide concave portion, and the opening portion of the base portion A pair of engagement ribs elastically contacting the surface of the other end side wall on the lock recess side, and a pair of engagement protrusions formed on the operation portion side of the elastic displacement portion and relatively engaged with a pair of engagement protrusions in the lock recess. A lid having a first lock protrusion and a second lock protrusion formed between the pair of first lock protrusions and formed below the first lock protrusion; When the rotation operation is performed so as to close the opening, the second engagement protrusion abuts on the second lock protrusion to elastically displace the elastic displacement portion inward. Then, the opening is closed by the first lock projections being over-engaged with each other over the first engagement projections. The elastically displaceable portion is elastically displaced inward by pulling up the operation portion via the finger hook concave portion, and the first and second lock projections are locked to the first and second lock projections. The engagement state with the second engagement protrusion is released to open the opening.
[0011]
According to another aspect of the present invention, there is provided a cover that is rotatably cantilevered at one end of an opening formed in a housing and that opens and closes an opening provided with locking means on a free end. In the electronic device provided with the lock mechanism, the housing is formed by a lock recess formed adjacent to the outside of the other end side wall of the opening, and a side wall of the lock recess opposite to the other end side wall of the opening. A wedge-shaped pair of first engagement protrusions protruding into the lock concave portion, and a second engagement protrusion formed between the pair of first engagement protrusions and below the first engagement protrusion. 2 and a finger hook guide recess formed adjacent to the outside of the lock recess. The locking means of the cover is connected to a base integrated with the free end of the cover. And an elastic displacement portion formed in a substantially U-shape and formed on the distal end side of the elastic displacement portion. An operation portion facing the finger guide recess, an engagement rib elastically contacting the lock recess side surface of the other end side wall of the opening of the base, and an operation portion of the elastic displacement portion. A pair of first lock protrusions that are relatively engaged with a pair of engagement protrusions in the lock recess, and a lower portion of the first lock protrusion positioned between the pair of first lock protrusions. And a second lock projection formed on the side, and when the lid is rotated so as to close the opening, the second engagement projection becomes the second lock projection. The elastically displaceable portion is elastically displaced inward by abutting against the lock projection, and then the first lock projection is overridden by the first engagement projection and relatively engaged with each other, Locked in a state where the opening is closed, and by pulling up the operation unit through the finger hook recess, The elastic displacement part is elastically displaced inward, and the engagement between the first and second lock projections and the first and second engagement projections is released to open the opening. You.
[0012]
[Action]
According to the lid locking mechanism and the electronic device of the present invention configured as described above, when the lid is rotated to close the opening, the lid has a U-shape and becomes thin. When the formed elastic displacement portion is bent inward, the lock protrusions get over the engagement protrusions and are relatively engaged with each other, so that the lock is performed in a state where the opening is closed. In addition, the lid body is strongly pulled up through the finger hook concave portion, whereby the elastic displacement portion is bent inward, and the engagement state between the lock projection and the engagement projection is released. Open the opening.
[0013]
The lock mechanism is also used when the equipment is accidentally dropped and the impact is applied, and the battery etc. stored in the opening violently hits the lid and a strong lifting force is applied to this lid from the inside. The elastic force of the elastic displacement portion is not applied to the lock protrusion formed on the side portion of the operation portion and disengaged from the engagement protrusion with the engagement protrusion in the lifting direction. Thus, the engagement state between the lock projection and the engagement projection is maintained. Further, the locking mechanism is configured to move in a direction in which the engagement state between the locking projection and the engagement projection is released by a pair of engagement ribs formed on the side surface of the base abutting against the side wall of the lock recess. Regulate. Therefore, the lock mechanism reliably holds the lid in a state where the opening is closed.
[0014]
According to the lid locking mechanism of the present invention, the lid is adopted in a portable disk player, the opening is opened in a part of the main surface of the upper housing which is a rotation area of the disk, and the battery is stored therein. While the lid is closed in a state where the battery housing is closed.UpperSince the battery cover is configured to be substantially the same as the main surface of the housing, even when the portable disk player is accidentally dropped, the battery cover is rotated and stored in the disk rotating space. There will be no collision with the disc.
[0015]
【Example】
Hereinafter, specific examples of the present invention will be described in detail with reference to the drawings. The embodiment shows the disc player 1 in which the lock mechanism of the lid according to the present invention is employed as the lock mechanism of the battery lid 9 for opening and closing the battery storage unit 20. The disc player 1 is used as a portable type in which the optical disc 2 is mounted and a tone signal or the like recorded in a recording unit thereof is reproduced, and a rechargeable battery 8 is stored in a battery storage unit 20 as an internal power supply.
[0016]
The disc player 1 has a peripheral wall 11 integrally formed on the outer peripheral portion of a bottom portion 10 and a control board 7 and a reproducing unit.6The housing is constituted by a base housing 3 having the base housing 3, an upper housing 4 combined with the base housing 3, and a housing lid 5 rotatably combined with one side of the upper housing 4 via a hinge mechanism 35. are doing.
[0017]
A plurality of coupling studs 12 for positioning and fixing the control board 7 and coupling with the upper housing 4 are formed integrally with the base housing 3 at an appropriate position on the bottom surface 10. The base housing 3 has one corner portion, a positioning stud 13 at a position diagonally from the corner portion, slightly diagonally closer to the diagonal corner than the center portion, and at left and right positions sandwiching the diagonal line. Are formed integrally. Further, the base housing 3 is provided with an operation switch group 14 which is located on one side of the bottom surface portion 10 and whose details are omitted.
[0018]
The upper housing 4 is formed to have an outer diameter dimension substantially the same as that of the base housing 3, and has a peripheral wall 16 facing the base housing 3 on the outer peripheral portion of the main surface 15 constituting the disk rotation space of the optical disk 2. Are integrally formed to stand up. The upper housing 4 is formed with an arc-shaped guide wall 17 which is located at one corner and protrudes from the main surface 15 in an eaves-like shape. Also, the upper housing 4 is formed by notching a region of the main surface 15 that is located diagonally from one corner where the guide wall 17 is formed and that extends slightly diagonally from the center. A pickup opening 18 is formed. Further, the upper housing 4 is provided with a battery loading opening 19 that forms an opening of the battery storage unit 20 by notching a region between the pickup opening 18 and the peripheral wall 16 in a rectangular shape with the other corner as a starting point. Has been established.
[0019]
As shown in FIG. 5, a battery loading opening 19 is provided in the upper housing 4.Has been established. The lid 9 is supported at one end of the battery loading opening 19 as described later, and a lock recess 23 is provided adjacent to the outside of a side wall 24 (hereinafter, referred to as an opening side wall 24) at the other end. .
A lock recess 23 is formed on the main surface 15 and faces the other end side wall 24 of the battery loading opening 19.A substantially semicircular finger guide recess 21 is recessed through a side wall 22 (hereinafter referred to as a recess side wall 22). A pair of first engaging projections 22B, 22B are integrally formed on the recess side wall 22 so as to be separated from each other on both sides in the width direction of the upper edge. Further, a second engaging projection 22A is integrally formed on the recess side wall 22 so as to protrude integrally at a substantially central portion in the width direction and slightly below the upper edge. The first engagement projection 22B and the second engagement projection 22A are formed as projections each having a substantially wedge-shaped cross section and projecting into the lock recess 23.
[0020]
As shown in FIG. 3, the upper housing 4 faces the opening side wall 24 of the battery loading opening 19.SideA bearing 25 is formed on the wall. Although not described in detail, the bearing portion 25 is constituted by a plurality of bearing cylinder portions which are coaxially located at appropriate intervals and formed at one end of a battery lid 9 described later between the bearing cylinder portions. The assembled bearing cylinders are combined to form a bearing cylinder as a whole. The shaft is penetrated through the bearing cylinder, so that the battery cover 9 can rotate one end part freely.CantileverSupported.
[0021]
As shown in FIG. 3, a pair of battery terminal pieces 26A and 26B constituting one battery terminal are attached to the side wall on which the bearing 25 is formed. Although not described in detail, the battery terminal pieces 26A and 26B are elastically displaceable by being bent in an arc shape with a plate-like plus terminal piece 26A that is assembled adjacent to the side wall in the width direction. And a pair of minus terminal pieces 26B.
[0022]
The battery cover 9 is formed of a rectangular thin plate member having an external dimension sufficient to close the battery loading opening 19. The battery cover 9 forms substantially the same surface as the main surface 15 of the upper housing 4 when the battery loading opening 19 is closed. An engaging piece 9A bent downward in an L-shape is provided at the substantially central position of the free end of the battery lid 9 so as to protrude integrally therewith, and will be described later via the engaging piece 9A. The lock members 27 are integrally combined.
[0023]
The housing lid 5 is formed to have an outer diameter dimension substantially the same as that of the upper housing 4, and is rotatably supported on one end side of the upper housing 4 by a hinge mechanism 35. The housing cover 5 is provided with an operation display window 36 to which a transparent plate is attached so that the optical disk 2 housed in the disk rotation space can be seen through. Although not described in detail, the hinge mechanism 35 is operated by firmly holding the upper housing 4 in a state where the upper lid 4 is closed by the housing lid 5 and by sliding the lid opening operator provided on the outer peripheral portion of the upper housing 4. Then, the housing lid 5 is rotated.
[0024]
Although the details of the reproducing unit 6 are omitted, the channel-shaped unit frame 37, the optical pickup device 40 including the objective lens 41 movably supported by the unit frame 37, and one end of the unit frame 37 It is constituted by a disk table 42 and the like, which are disk driving means supported and rotationally driving the optical disk 2. In the unit frame 37, mounting portions 38 are integrally formed corresponding to the positioning studs 13 formed on the bottom surface portion 10 of the base housing 3, respectively.
[0025]
As shown in FIG. 2, the playback unit 6 extends diagonally from one corner of the base housing 3 in a state where the playback unit 6 is assembled to the base housing 3 via the mounting portions 38, and the disc table 42 is mounted on the base housing 3. It is located substantially at the center of the housing 3. The unit frame 37 is provided with a guide groove 39 in which the optical pickup device 40 moves from one end where the disk table 42 is provided to the other end.
[0026]
In a state where the base housing 3 and the upper housing 4 are combined, the reproducing unit 6 is exposed from the pickup opening 18 to the main surface 15 of the upper housing 4 and is exposed to the disk rotating space. In the reproducing unit 6, when the optical disk 2 is loaded in the disk rotating space, the disk table 42 performs magnetic chucking of the hub provided at the center of the optical disk 2. When the reproducing operation of the disk player 1 is performed, the reproducing unit 6 rotates the disk table 42 and drives the optical disk 2 to rotate. The optical pickup device 40 moves from the outer peripheral portion toward the center in the guide groove 39 to reproduce a tone signal or the like recorded on the recording portion of the optical disc 2.
[0027]
The control board 7 has a notch 43 formed in a portion corresponding to the reproducing unit 6, so that the entire area occupying another area of the bottom surface 10 of the base housing 3 occupied by the reproducing unit 6 is substantially U-shaped. Is formed. The control board 7 is configured as a double-sided mounting board, and has, for example, an output terminal 45, a power supply terminal 46, a pause switch 47, a volume switch 48, or various function switches on an outer peripheral portion corresponding to each operation hole formed in the housing portion. 49 are respectively mounted.
[0028]
The control board 7 constitutes the bottom surface of the battery housing section 20 by defining the area corresponding to the battery loading opening 19 as an area where no components are mounted or circuits are formed. Further, a pair of battery terminal pieces 44A, 44B constituting the other battery terminals corresponding to the pair of battery terminal pieces 26A, 26B provided in the upper housing 4 are mounted on the battery housing portion 20, respectively. Although not described in detail, these battery terminal pieces 44A and 44B are composed of a U-shaped plus terminal piece 44A and a pair of minus terminal pieces 44B that are bent in an arc shape and can be elastically displaced. .
[0029]
In the disc player 1, two rechargeable batteries 8 as an internal power supply are loaded into the battery storage section 20 through the battery loading opening 19. The rechargeable battery 8 is mounted and supported on the control board 7 constituting the bottom surface of the battery housing 20, and includes battery terminal pieces 26A and 26B on the upper housing 4 side and battery terminal pieces 44A and 44B on the control board 7 side. And are electrically connected. The rechargeable battery 8 is held in the battery storage unit 20 by closing the battery loading opening 19 with the battery lid 9.
[0030]
The closed state of the battery loading opening 19 is held by the lock member 27 integrated with the distal end of the battery lid 9. As shown in FIGS. 5 and 6, the lock member 27 is a member that is slightly smaller than the opening dimension of the lock recess 23, and has a block-shaped base 28 and one side surface of the base 28. The elastic displacement part 30 formed so as to protrude and the operation part 31 formed at the tip of the elastic displacement part 30 are integrally formed. The base 28 is provided with a height-direction engaging hole 29 having an opening dimension substantially equal to the cross-sectional dimension of the engaging piece 9A formed at the tip of the battery lid 9. As shown in FIG. 9, the base 28 is integrally provided with locking ribs 32 </ b> A and 32 </ b> B in the height direction that are spaced apart in the width direction on the side surface facing the opening side wall 24.
[0031]
As shown in FIG. 5, the elastic displacement portion 30 has a substantially U-shape having an interval substantially equal to the length of the opening of the lock recess 23 in the longitudinal direction. It can be elastically displaced. A second lock projection 33 is provided integrally with the elastic displacement section 30 and is located below the operation section 31. The second lock projection 33 is gradually projected outward from the U-shaped folded side of the elastic displacement portion 30 toward the distal end, and has a wedge-shaped cross section that forms a horizontal step at the distal end. I have.
[0032]
First locking projections 34A and 34B are integrally formed on both sides of the distal end of the elastic displacement portion 30 so as to project integrally. The first lock projections 34A and 34B also gradually project outward from the side surface of the elastic displacement portion 30 toward the distal end side similarly to the above-described second lock projection 33, and have a horizontal step at the distal end. It is formed so as to have a wedge-shaped cross section constituting the portion. The first lock projections 34A, 34B are formed on the elastic displacement portion 30 at positions corresponding to the pair of first engagement projections 22B, 22B formed on the recess side wall 22, respectively. Also, the second lock projection33Are formed on the elastic displacement portion 30 at positions corresponding to the second engagement protrusions 22A.
[0033]
The lock member 27 is integrated with the tip of the battery cover 9 by press-fitting the engagement piece 9A of the battery cover 9 into the engagement hole 29. It is needless to say that the integrated structure of the lock member 27 and the battery lid 9 may be performed by a method such as bonding or screwing.
[0034]
As shown in FIGS. 5 and 6, the lock member 27 is closed by the integrated battery cover 9 closing the battery loading opening 19 of the battery storage unit 20 storing the rechargeable battery 8. Relatively engaged. When the lock member 27 is relatively engaged with the lock recess 23, the engagement ribs 32 </ b> A and 32 </ b> B are elastically contacted with the opening side wall 24. Further, the lock member 27 is configured such that the first lock protrusions 34A, 34B are moved toward the first engagement protrusions 22B, 22B by the elastically deformable portion 30 being slightly bent inward. They are relatively engaged in a biased state. Similarly, the second locking projection33Are relatively engaged with each other while being urged toward the second engagement protrusion 22A.
[0035]
When the lock member 27 is pushed into the lock recess 23, the elastically deformable portion 30 having a U-shape and formed in a thin thickness is bent inward, so that the second lock protrusion 33 is formed in the recess side wall. The second engagement protrusions 22A of the second pair 22 are relatively engaged with each other. Similarly, the first lock projections 34A, 34B ride over the first engagement projections 22B, 22B of the recess side wall 22 and are relatively engaged with each other.
[0036]
By the way, it is preferable that the first locking projections 34A, 34B and the first engagement projections 22B, 22B be simultaneously engaged, but that one side is relatively engaged and then the other side is relatively engaged. A so-called double lock phenomenon may be exhibited. In order to eliminate the double lock phenomenon, the second lock projection 33 is engaged with the second lock projection 34A, 34B before the first engagement with the first engagement projections 22B, 22B. The elastically displaceable portion 30 is elastically displaced inward by abutment with the collision portion 22A. In other words, the second lock projection 33 has a guiding action for bending the elastic displacement portion 30 inward.
[0037]
The battery cover 9 is locked in a state where the first lock projections 34A and 34B of the lock member 27 are relatively engaged with the first engagement projections 22B and 22B, so that the battery loading opening 19 is closed. . The second lock projection 33 also engages with the second engagement projection 22A to lock the battery cover 9, but similarly to the above-described conventional lock mechanism, the operation part 31 is locked. There is a possibility that the lever may be operated in a direction in which the engagement state with the second engagement protrusion 22A is released by the leverage action. Therefore, the second lock projection 33 has a small effect as a portion that greatly contributes to the holding operation of the locked state in the event of a drop impact, which will be described later. 34A and 34B function as guide portions that bend inward prior to the engagement with the first engagement protrusions 22B and 22B.
[0038]
The battery lid 9 is held in a state where the battery loading opening 19 is firmly closed by the locking operation of the locking member 27 described above. When the battery cover 9 closes the battery loading opening 19, the lock member 27 has the operation unit 31 and other parts positioned below the main surface 15 of the upper housing 4 as indicated by Δx in FIG. You. Therefore, the lock member 27 does not cause such a disadvantage that the recording surface is damaged by abutting against the main surface of the optical disk 2 which is rotated and driven in the disk rotation space by the reproducing unit 6.
[0039]
The battery cover 9 opens the battery loading opening 19 by strongly pulling up the operation section 31 of the lock member 27 with a finger inserted from the finger hook guide recess 21 when replacing the rechargeable battery 8 or the like. The lock member 27 causes the elastic displacement portion 30 to be bent inward by this operation, and the engagement state between the first lock projections 34A, 34B and the first engagement projections 22B, 22B and the second engagement state. The engagement state between the lock projection 33 and the second engagement projection 22A is released, the engagement state between the lock projection and the engagement projection is released, and the locked state of the battery cover 9 is released.
[0040]
The battery cover 9 keeps the battery loading opening 19 closed even if the disc player 1 is accidentally dropped or the like and a large impact is applied. In other words, the rechargeable battery 8 stored in the battery storage unit 20 violently hits the battery lid 9 from the inside due to a drop impact, and a strong push-up force is applied. As described above, the first lock projections 34A, 34B of the lock member 27 are relatively engaged with the first engagement projections 22B, 22B of the recess side wall 22. These first engagement protrusions 22B, 22B are not engaged in the direction in which the push-up force applied to the battery cover 9 is disengaged from the first engagement protrusions 22B, 22B. The matching state is maintained.
[0041]
The lock member 27 is configured such that the engagement ribs 32A, 32B formed on the side surface of the base 28 abut against the opening side wall 24, so that the first lock protrusions 34A, 34B and the first engagement protrusions are formed. The movement operation in the direction to release the engagement state with 22B, 22B is prevented. Accordingly, the battery cover 9 is reliably held in a state where the battery loading opening 19 is closed by the action of the lock member 27, and protrudes into the disk rotation space to abut the optical disk 2 to damage its recording surface. The occurrence of inconvenience is reliably prevented.
[0042]
It should be noted that the present invention is of course widely applied not only to the above-described lock mechanism for the battery cover 9 of the disc player 1 but also to a lock mechanism for a lid body in other devices. Although the lock member 27 is formed as a separate member from the battery cover 9, it is needless to say that the lock member 27 may be formed integrally with the tip of the battery cover 9. The second lock projection 33 and the second engagement projection 22A are provided with a lock means and a guide means for avoiding a double lock phenomenon by using a structure adopted in a conventional lock mechanism. However, in the case where a guide function is simply exerted, it may be constituted by a guide projection that abuts against the side wall of the recess.
[0043]
【The invention's effect】
As described above in detail, according to the lid locking mechanism and the electronic device according to the present invention, the whole has a simple structure, and is provided with a battery or the like housed inside the opening by being subjected to a drop impact or the like. Even when a strong lifting force is applied to the lid from inside,The elastic force of the elastic displacement portion does not act on the lock projection formed on the side of the operation portion to release the engagement state with the engagement projection, and does not act in the lifting direction. The locking mechanism restricts the movement operation in the direction of releasing the engagement state between the locking projection and the engagement projection by the engagement of the engagement rib formed on the side surface of the base with the side wall of the lock recess. ,Engagement between the engagement projection and the lock projection is reliably maintained, and the closed state of the opening by the lid is maintained.AndInconveniences such as a battery or the like stored inside falling and scattering are reliably prevented.
Furthermore, the occurrence of the double lock phenomenon can be avoided.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a disk player having a lid locking mechanism according to the present invention.
FIG. 2 is a perspective view of the disk player with a battery cover opened.
FIG. 3 is a perspective view of a main part of the disc player with a battery cover opened.
FIG. 4 is a plan view of an essential part showing a battery storage part of the disc player.
FIG. 5 is a vertical sectional view showing a main part of the disk player, taken along line AA of FIG. 4;
FIG. 6 is a longitudinal sectional view showing a main part of the disk player, taken along line BB of FIG. 4;
FIG. 7 is a plan view of a lock member that is assembled to a tip portion of a battery lid and forms a lock mechanism.
FIG. 8 is a rear view of the lock member.
FIG. 9 is a bottom view of the lock member.
FIG. 10 is a side view of the lock member.
[Explanation of symbols]
1 disc player, 2 optical disc, 3baseHousing,
Reference Signs List 4 upper housing (housing), 5 housing lid, 6 reproduction unit, 7 control board, 8 rechargeable battery (battery), 9 battery lid, 20 battery housing (opening), 21 finger guide recess, 22 engaging projection , 23 lock concave portion, 24 partition wall, 27 lock member (lock means), 28 base portion, 30 elastic displacement portion, 32 engagement rib portion,
33SecondLockProtrusion  , 34FirstLockProtrusion

Claims (6)

A lock mechanism for a lid that is rotatably cantilevered at one end of an opening formed in a housing and that opens and closes an opening provided with locking means on a free end,
  The housing has a lock recess formed adjacent to the outside of the other end side wall of the opening,
  A pair of wedge-shaped first engagement protrusions protruding into the lock recess from a side wall of the lock recess opposite to the other end side wall of the opening;
  A second engagement projection formed between the pair of first engagement projections and below the first engagement projection;
  A finger hook guide recess formed adjacent to the outside of the lock recess,
  A locking means for the lid, an elastically displaceable portion formed to be curved substantially in a U-shape continuously with a base integrated with the free end of the lid,
  An operation unit formed on the distal end side of the elastic displacement unit and facing the finger hook guide recess;
  An engagement rib elastically in contact with a surface of the base on the other side wall of the opening on the side of the lock recess,
  A pair of first lock protrusions formed on the operation portion side of the elastic displacement portion and relatively engaged with a pair of engagement protrusions in the lock recess;
  A second lock projection formed between the pair of first lock projections and below the first lock projection.
  When the lid is rotated so as to close the opening, the second engagement projection abuts on the second lock projection to move the elastic displacement section inward. Elastically displaced, and then the first lock projections are relatively engaged with each other over the first engagement projections, whereby the first lock projections are locked with the opening closed,
  When the operating portion is pulled up through the finger hook concave portion, the elastic displacement portion is elastically displaced inward, and the first and second lock projections and the first and second engagement projections are moved. A locking mechanism for the lid, wherein the engagement with the cover is released to open the opening. The housing has a base housing in which a reproduction unit or a control board is incorporated, and a main surface which constitutes a disk rotation space in which a disk is rotated in a state combined with the base housing. A housing comprising an upper housing provided with a pickup opening for exposing the disk drive means, and a housing lid which is openably and closably combined with one side of the upper housing,
  The opening is a battery storage part which is opened on the main surface constituting the disk rotation space part of the upper housing and in which a battery is loaded,
  2. A locking mechanism for a lid according to claim 1, wherein the lid is a battery lid for opening and closing the battery storage, and has a substantially same surface as a main surface of the upper housing when the battery storage is closed. . The lock means is constituted by a lock member which is a member independent of the lid,
  The lid and the lock member are integrated by engaging an engagement portion formed at a free end of the lid with an engagement groove formed at a base of the lock member. The lid locking mechanism according to claim 1 or 2. An electronic device having a lid locking mechanism that is rotatably cantilevered at one end of an opening formed in a housing and that opens and closes an opening provided with locking means on a free end,
  The housing has a lock recess formed adjacent to the outside of the other end side wall of the opening,
  A pair of wedge-shaped first engagement protrusions protruding into the lock recess from a side wall of the lock recess opposite to the other end side wall of the opening;
  A second engagement projection formed between the pair of first engagement projections and below the first engagement projection;
  A finger hook guide recess formed adjacent to the outside of the lock recess,
  A locking means for the lid, an elastically displaceable portion formed to be curved substantially in a U-shape continuously with a base integrated with the free end of the lid,
  An operation unit formed on the distal end side of the elastic displacement unit and facing the finger hook guide recess;
  An engagement rib elastically in contact with a surface of the base on the other side wall of the opening on the side of the lock recess,
  A pair of first lock protrusions formed on the operation portion side of the elastic displacement portion and relatively engaged with a pair of engagement protrusions in the lock recess;
  A second lock projection formed between the pair of first lock projections and below the first lock projection.
  When the lid is rotated so as to close the opening, the second engagement projection abuts on the second lock projection to move the elastic displacement section inward. Elastically displaced, and then the first lock projections are relatively engaged with each other over the first engagement projections, whereby the first lock projections are locked with the opening closed,
  When the operating portion is pulled up through the finger hook concave portion, the elastic displacement portion is elastically displaced inward, and the first and second lock projections and the first and second engagement projections are moved. An electronic device characterized in that the electronic device is configured to release an engagement state with the opening to open the opening.   The housing has a base housing in which a reproduction unit or a control board is incorporated, and a main surface which constitutes a disk rotation space in which a disk is rotated in a state combined with the base housing. A housing comprising an upper housing provided with a pickup opening for exposing the disk drive means, and a housing lid which is openably and closably combined with one side of the upper housing,
  The opening is a battery storage part which is opened on the main surface constituting the disk rotation space part of the upper housing and in which a battery is loaded,
  5. The electronic device according to claim 4, wherein the lid is a battery lid that opens and closes the battery housing, and forms substantially the same surface as the main surface of the upper housing when the battery housing is closed. The lock means is constituted by a lock member which is a member independent of the lid,
  The lid and the lock member are integrated by engaging an engagement portion formed at a free end of the lid with an engagement groove formed at a base of the lock member. An electronic device having a lid according to claim 4 or 5.

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