JP2004318979A - Cap opening/closing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cap opening/closing apparatus which is easily operated and capable of realizing uniform and high sealing. <P>SOLUTION: The cap opening/closing apparatus is provided with a main body having a hinge part 3 and at least three circular-arc lock guides arranged on the same circumference, and an opening/closing cap attached to the main body to be opened/closed. The opening/closing cap is provided with: an upper cap having opening/closing cap holding catch insertion holes equal in the number to the lock guides and a first projected part, and rotatably supported by the hinge part to roughly cover the main body in the closed state of the opening/closing cap; a rotary ring 400 having a plurality of opening/closing cap holding catches inserted into the opening/closing cap holding catch insertion holes to be engaged with/separated from the lock guides, and a first recessed part 1 rotated in a circumferential direction to be engaged with the first projected part; and an upper cap cover attached to the upper cap to hold a rotary ring 600 rotatably with the upper cap. Further, the rotation of the rotary ring is accompanied by the engagement or separation of the opening/closing cap holding catches with or from the lock guides, and thus the main body 100 and the opening/closing cap are locked or released. Thus, the cap opening/closing apparatus having uniform and high sealing while the number of operation places is one. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lid opening / closing device.
[0002]
[Prior art]
In recent years, portable disk devices have spread to the market. 2. Description of the Related Art In general, a portable disk device includes a main body having a disk drive device to which a disk-shaped recording medium is detachably mounted, and an opening / closing lid for opening and closing the main body. By covering the disk drive device with an opening / closing lid, water or dust can be prevented from entering the inside to protect the disk. For example, a user who prefers to listen to music carries a portable disk device everywhere. Such a user can withstand the use at the seaside, for example. The user can easily lock / release the device, and at the time of the lock, the lid opening / closing has a waterproof effect equivalent to a waterproof type of life (JIS protection class 4). There is a need for a portable disk device having the device.
[0003]
Patent Document 1 (Japanese Patent Application Laid-Open No. Hei 6-243670) discloses an opening / closing lid locking device for a disc player according to Conventional Example 1. In the first conventional example, an engagement lever that engages the main body and the opening / closing lid and a lock release mechanism that moves the engagement lever to a position that does not engage with the opening / closing lid are arranged on the main body. Door open buttons for operating the lock release mechanism are provided on both the left and right sides of the main body. Therefore, regardless of the user's dominant arm, the lock can be easily released and the opening / closing lid can be opened by operating the door open button according to the dominant arm.
[0004]
Patent Literature 2 (Japanese Patent Application Laid-Open No. 2000-332447) discloses a lid opening / closing device of Conventional Example 2 for locking / releasing an opening / closing lid of a portable compact disc device, for example. The lid opening / closing device of Conventional Example 2 is configured such that buckles that rotate in a direction parallel to the lid surface are disposed on the left and right sides of an opening / closing lid that is configured to be openable and closable with respect to the main body, and the two buckles are interlocked. Things. The user can lock / release the two buckles simultaneously with one touch.
[0005]
[Patent Document 1]
JP-A-6-243670
[Patent Document 2]
JP 2000-332447 A
[0006]
[Problems to be solved by the invention]
In the opening / closing lid lock device of the first conventional example, the opening / closing lid and the main body are connected at two points, the hinge portion and the engagement lever, with the opening / closing lid closed. However, in general, in order to lock the opening / closing lid with respect to the main body and obtain a waterproof effect, it is necessary to engage the opening / closing lid with the main body at at least three places and uniformly press the opening / closing lid against the main body.
In the portable compact disk device using the lid opening / closing device of Conventional Example 2, the lid opening / closing device (buckle and interlocking component) is arranged near the free end of the opening / closing lid. The opening / closing lid is locked at three points: a spindle connecting the opening / closing lid and the main body, and two buckles. However, in Conventional Example 2, it is considered that the force for pressing the opening / closing lid against the main body in the state where the opening / closing lid is closed works only at two points of the two buckles.
[0007]
In the second conventional example, even if a force for pressing the open / close lid against the main body at three points of the hinge portion and the two buckles is applied in a state where the open / close lid is closed, the conventional open / close lid has the main body. It is difficult to make the force for pressing uniformly on all the joints between the opening / closing lid and the main body. In Conventional Example 2, the hinge portion and the two buckles are separate parts, and are separately attached to the main body. Therefore, the plane defined by the joint between the opening / closing lid and the main body, the hinge portion and the two buckles are provided. This is because it is difficult to secure the degree of parallelism with the plane defined by the locking points.
[0008]
The above-mentioned conventional lid opening / closing device does not have or is difficult to have a living waterproofing function. The present invention has high hermeticity (for example, hermeticity that provides a waterproof effect equal to or greater than a water-resistant type), easy to open and close the lid, durable, inexpensive, easy to assemble (small number of parts) and high reliability. It is an object of the present invention to provide a light and small lid opening and closing device having the same. The present invention realizes a new lid opening / closing method by further rotating the rotating ring (realizes an excellent appearance in design, and the new lid opening / closing operation method gives a fresh impression to the user.) The purpose is to provide.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention has the following configurations. The invention according to claim 1 includes a main body having a hinge portion and at least three arc-shaped lock guides arranged on the same circumference, an opening / closing lid attached to the main body so as to be openable and closable, The opening / closing lid has the same number of opening / closing lid holding claw insertion holes as the lock guide, and a first convex portion, is rotatably supported by the hinge portion, and closes the opening / closing lid. An upper cover that substantially covers the main body in the closed state, a plurality of open / close lid holding claws that are inserted into the open / close lid holding claw insertion holes and can be engaged with or disengaged from the respective lock guides, and are rotatable in a circumferential direction. And a top cover attached to the top lid and rotatably holding the rotation ring between the top ring and the top cover. , With the rotation of the rotating ring, the opening / closing lid holding claw By the locking guides and the engagement or separated, a lid opening and closing device, characterized in that said main body and said lid is or unlock the lock.
[0010]
The opening / closing lid is assembled from the bottom in order of an upper lid, a rotating ring, and an upper lid cover. The user can lock / release the lid by only one operation of rotating the rotating ring using the operation lever attached to the rotating ring. The present invention realizes a lid opening and closing device that can easily open and close the lid.
The lid opening / closing device of the present invention has an effect that a uniform high sealing performance can be realized even though the number of operation points is one.
[0011]
Since the rotating ring rotates in contact with the upper lid, high parallelism can be realized between the rotating ring, the upper lid, and the main body. Since the rotating ring is integrally formed, a plane defined by a joint between the opening / closing lid and the main body and a plane defined by a locking point between at least three opening / closing lid holding claws and a lock guide provided on the main body. Means that high parallelism can be realized. Therefore, at the time of locking, the opening / closing lid can be pressed uniformly against the main body. According to the present invention, a lid opening / closing device having high airtightness is realized by pressing the upper lid against the main body with at least three opening / closing lid holding claws provided on the rotating ring and the lock guide provided on the main body. . ADVANTAGE OF THE INVENTION This invention can implement | achieve the lid opening / closing apparatus which has a waterproof effect more than a living waterproof type.
[0012]
By providing the first convex portion on the upper lid and the first concave portion on the rotating ring, the rotating ring can be held rotatably and the rigidity between the upper lid and the rotating ring can be increased. If high sealing performance is to be achieved between the opening / closing lid and the main body, considerable stress is applied to the upper lid and the rotating ring. According to the present invention, since the upper lid and the rotating ring have high rigidity, the problem that the upper lid or the rotating ring is deformed due to the stress and the hermeticity is deteriorated is less likely to occur. The present invention can realize a lid opening / closing device having high durability and high reliability. With the above structure, the upper lid and the rotating ring can be made of a lightweight material (for example, resin) with a small thickness. The present invention can realize a lightweight and small lid opening and closing device.
[0013]
There is a movable part (rotating ring) only in the peripheral part of the opening / closing lid, and there is no movable part in the center of the opening / closing lid (except for a movable part not included in the opening / closing device (for example, a movable push button of an operation part)). The upper lid does not have an opening at the center for constituting the opening / closing device. Thereby, a high airtightness is further realized between the opening / closing lid and the main body.
[0014]
Since the present invention can be configured with inexpensive parts having a small number of parts, it is possible to realize a lid opening / closing apparatus which is inexpensive and easy to assemble (the number of parts is small).
The opening and closing method of the lid by rotating the rotating ring realizes an excellent appearance in design, and the new opening and closing operation method of the lid gives the user a fresh impression.
The term “upper lid” includes a case where the upper lid alone is indicated, and a case where the entire upper lid and another member attached to the upper lid (for example, the upper lid fixing plate 200 in the embodiment) are indicated. The same applies to other parts.
[0015]
In the invention described in claim 2, the upper lid further has a plurality of rotating ring holding claws, and the rotating ring holds the rotating ring so as to be rotatable in a circumferential direction thereof. 2. The lid opening / closing device according to claim 1, wherein the lid opening / closing device has a plurality of rotating ring guide holes that engage with the ring holding claws.
[0016]
In the present invention, the rotating ring holding claw is further rotatably engaged with the rotating ring guide hole. For example, in the manufacturing process, the rotating ring can be temporarily attached to the upper cover before the upper cover is removed. The present invention realizes a lid opening and closing device that is easier to assemble.
At all angles of the movable range of the rotating ring, the rotating ring holding claw may be engaged with the rotating ring guide hole, and at some angle of the movable range of the rotating ring, the rotating ring holding claw is engaged with the rotating ring guide hole. It may be engaged.
[0017]
According to a third aspect of the present invention, there is provided a main body having a hinge portion and at least three arc-shaped lock guides arranged on the same circumference, an opening / closing lid attached to the main body so as to be openable and closable, The opening / closing lid has a plurality of rotating ring holding claws, and the same number of opening / closing lid holding claw insertion holes as the lock guide, and is rotatably supported by the hinge portion so as to be rotatable. An upper cover that substantially covers the main body in a closed state, a plurality of open / close lid holding claws that are inserted into the open / close lid holding claw insertion holes and engage or disengage with the respective lock guides, and a rotating ring is rotated in the circumferential direction. A rotating ring having a plurality of rotating ring guide holes engaged with the respective rotating ring holding claws so as to movably hold the rotating ring holding claws. Engage with the lock guide or By contrary, said main body and said lid is a lid opening and closing device, characterized in that the or unlock the lock.
According to the present invention, a plurality of rotating ring holding claws provided on the upper lid rotatably hold the rotating ring instead of the configuration of the first aspect. The present invention has the same operation as that of claim 1 and has the same effect.
[0018]
The invention according to claim 4 is characterized in that both ends of the rotating ring guide hole play the role of a rotating stopper of the rotating ring by locking the rotating ring holding claw. A lid opening / closing device according to claim 3.
Since the present invention can be configured with inexpensive parts having a small number of parts, it is possible to realize a lid opening / closing apparatus which is inexpensive and easy to assemble (the number of parts is small).
[0019]
In the invention according to claim 5, a rotation axis of the hinge portion is arranged such that in a state where the open / close lid is closed, a stress acts on the hinge portion in a direction in which the open / close lid and the main body are in close contact with each other, The lid according to any one of claims 1 to 4, wherein the main body has at least two arc-shaped lock guides instead of the at least three arc-shaped lock guides. It is a switchgear.
[0020]
According to the present invention, at least two opening / closing lid holding claws and a hinge provided on the rotating ring press the upper lid against the main body, so that the opening / closing lid can be uniformly pressed against the main body when locked. The present invention realizes a lid opening / closing device having high hermeticity. ADVANTAGE OF THE INVENTION This invention can implement | achieve the lid opening / closing apparatus which has a waterproof effect more than a living waterproof type.
The configuration of the present invention can be inferior to the invention according to claim 1 or the like in that at least three opening / closing lid holding claws are integrally formed as a part of the rotating ring in terms of the uniformity of the force for pressing the opening / closing lid against the main body during locking. However, it is possible to achieve a practically high level of hermeticity.
[0021]
In the invention described in claim 6, the lock guide has an inclined portion and / or a second convex portion, and when the opening / closing lid holding claw is moved in a direction to engage with the lock guide, the inclined portion becomes Guiding the opening / closing lid holding claw in a direction in which the opening / closing lid and the main body are in close contact with each other, and wherein the second convex portion locks the opening / closing lid holding claw over the second convex portion by the rotating ring. The lid opening / closing device according to any one of claims 1 to 5, wherein the lid opening / closing device is held so as not to move in a releasing direction.
[0022]
ADVANTAGE OF THE INVENTION This invention can implement | achieve the lid opening / closing apparatus which has high sealing property and / or is hard to cause an accident that a lock is unlocked contrary to a user's intention.
Since the lock guide has the convex portion, the user can surely feel the completion of the lock and obtain a good lock state. Since the rotating ring is not inadvertently rotated from the locked state or the released (released) state, the locked state or the released state can be reliably maintained.
Since the lock guide has an inclined portion, the lid gradually approaches the main body during the locking operation. The lid gradually moves away from the main body during the release operation. The present invention realizes smooth opening and closing of the lid.
[0023]
The invention according to claim 7, wherein the main body further has a plurality of second concave portions disposed on a side surface, and the opening / closing lid includes a third convex portion disposed on the side surface and protruding inward. A plurality of lock pieces each having a lock piece rotation center hole and a link shaft, wherein the upper lid is inserted through the lock piece rotation center hole and holds the lock piece rotatably. The rotating ring further has a plurality of lock piece guide holes, each of which is inserted through the link shaft and is eccentric from the center of rotation of the rotating ring, wherein the main body and the opening / closing lid are locked. When the rotating ring is rotated in the direction of rotation, the lock shaft moves so that the third convex portion engages with the second concave portion by the linkage shaft being guided by the lock piece guide hole. The method according to any one of claims 1 to 5, wherein A lid opening and closing device according to Kano claim.
ADVANTAGE OF THE INVENTION This invention can implement | achieve the lid opening-and-closing apparatus which has an even higher sealing property and / or is hard to cause an accident that a lock is unlocked contrary to a user's intention.
[0024]
The invention according to claim 8 has an upper lid cover attached to the upper lid, the upper lid cover rotatably holding the rotating ring and the lock piece between the upper lid and the rotation ring. It is a lid opening / closing device as described in the above.
Since the present invention can be configured with inexpensive parts having a small number of parts, it is possible to realize a lid opening / closing apparatus which is inexpensive and easy to assemble (the number of parts is small).
[0025]
According to a ninth aspect of the present invention, as the second concave portion engages with the third convex portion, the second concave portion guides the third convex portion in a direction in which the opening / closing lid and the main body come into close contact with each other. A surface, and / or a fourth convex portion that holds the third convex portion over the third convex portion so as not to move in a direction in which the rotating ring unlocks, or the third convex portion includes: A sliding surface with the second concave portion, which is inclined so that the third convex portion moves in a direction in which the opening / closing lid and the main body come into close contact with each other as the second concave portion is engaged. The lid opening / closing device according to claim 7, characterized in that:
ADVANTAGE OF THE INVENTION This invention can implement | achieve the lid opening-and-closing apparatus which has an even higher sealing property and / or is hard to cause an accident that a lock is unlocked contrary to a user's intention. The third convex portion allows the user to reliably feel the completion of the lock.
[0026]
The invention according to claim 10 is that the main body and / or the upper lid further include a packing member that forms a closed circuit that does not include the lock guide therein and seals the inside with the opening / closing lid closed. A lid opening / closing device according to any one of claims 1 to 9, characterized in that:
The present invention can realize a highly reliable lid opening / closing device having high hermeticity because there is no opening or a gap related to the configuration of the lid opening / closing device in a region surrounded by the packing member. Preferably, the lock guide is provided on the outermost periphery of the main body.
[0027]
The invention according to claim 11 is characterized in that the main body has the opening / closing lid holding claw instead of the lock guide, and the rotating ring has the lock guide instead of the opening / closing lid holding claw. A lid opening and closing device according to any one of claims 1 to 10. The present invention has the same effects as described above.
[0028]
According to the twelfth aspect of the present invention, the main body has a third convex portion disposed on a side surface and protruding outward instead of the second concave portion, and the lock piece is replaced with the third convex portion. The lid opening / closing device according to any one of claims 7 to 11, further comprising the second concave portion. The present invention has the same effects as described above.
[0029]
The invention according to claim 13 is characterized in that the upper lid has the lock piece rotation center hole that does not penetrate in place of the lock piece rotation center axis, and the lock piece rotates in place of the lock piece rotation center hole. The lid opening / closing device according to any one of claims 7 to 12, wherein the lid opening / closing device has a central axis. The present invention has the same effects as described above.
[0030]
The invention according to claim 14 is characterized in that the rotating ring has the link shaft instead of the lock piece guide hole, and the lock piece has the lock piece guide hole instead of the link shaft. A lid opening / closing device according to any one of claims 7 to 13. The present invention has the same effects as described above.
[0031]
According to a fifteenth aspect of the present invention, there is provided the lid opening and closing device according to any one of the first to fourteenth aspects, wherein an operating portion is provided on the upper lid inside the rotating ring. Disk device. According to the present invention, an easy-to-use disk device having the same effects as described above can be realized.
[0032]
BEST MODE FOR CARRYING OUT THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments that specifically show the best mode for carrying out the present invention will be described below with reference to the drawings.
[0033]
<< Embodiment 1 >>
A portable compact disc device provided with a lid opening / closing device according to a first embodiment of the present invention will be described with reference to FIGS.
FIGS. 1 and 2 are an external view in a locked state of a portable compact disc apparatus 1 provided with a lid opening / closing device according to a first embodiment of the present invention, and a perspective view showing a state in which an opening / closing lid 2 is opened. FIG. 3 is an exploded perspective view of a main part from a viewpoint obliquely looking down from above. FIG. 4 is an exploded perspective view of the main body 100, the upper lid 300, the rotating ring 400, the lock piece 500, and the lock piece 501, which constitute the portable compact disc device 1 as viewed from obliquely below. FIGS. 5A and 5B are perspective views of a main part of the lid opening and closing device of the portable compact disc device 1 in a released state and a locked state.
[0034]
Reference numeral 1 denotes a portable compact disc device (a reproduction-only device) provided with the lid opening / closing device according to the first embodiment of the present invention, 100 denotes a main body, and 2 denotes an opening / closing lid. When the opening / closing lid 2 is closed, the portable compact disc device 1 has a disk-like shape having a certain thickness at the center as a whole (FIG. 1). The opening / closing lid 2 is rotatably attached to the hinge 3 of the main body 100. A disc reproducing unit 702 is provided inside the main body 100. The user places the compact disc at a predetermined position of the disc reproducing unit 702 with the open / close lid 2 opened (FIG. 2), closes the open / close lid 2, locks the open / close lid 2, and plays the disc by a predetermined operation. The compact disc playback function of the unit 702 is operated to view the compact disc.
[0035]
The configuration of the lid opening and closing device according to the first embodiment will be further described with reference to FIGS. First, the main body 100 will be described. The main body 100 includes a hinge portion 3, three lock guides 103, 115, and 116 attached to the lock guide attachment portion 114 (hereinafter, when these are not distinguished, they are simply referred to as "lock guides"), and a disk. A reproduction unit 702.
[0036]
The three lock guides 103, 115, and 116 are disposed on the same circumference at the outermost periphery of the main body 100. When the rotating ring 400 rotates, the three open / close lid holding claws 404 provided on the rotating ring 400 move along the lock guide. When the lid 2 is closed, the lid holding claw 404 engages with the lock guides 103, 115, and 115 to lock the lid 2 and the main body.
[0037]
The structure of the lock guide 103 will be described with reference to FIG. FIG. 5A is an enlarged view showing a state of the lock guide 103 and the opening / closing lid holding claw 404 in a state where the opening / closing lid 2 is opened. The lock guide is made of stainless steel and has a slight elasticity. The lock guide 103 has screw mounting holes 110 and 111 at both ends. An opening 113 and a protrusion 112 are formed between the screw mounting portions 110 and 111, and an inclined portion 117 that is inclined toward the protrusion 112 from an intermediate point between the opening 113 and the protrusion 112 is provided. I have. The shape of the lock guide 116 is the same as the shape of the lock guide 103. The lock guide 115 is formed in a shape in which the opening 113 and the screw mounting hole 111 are removed from the lock guide 103, and the projection 112 and the inclined portion 117 are integrated.
[0038]
The lock guide 103 is screwed at two places to lock guide mounting portions 114 provided at three places on the inner periphery of the upper surface of the main body 100 (FIG. 2). The lock guide 116 is screwed to the main body 100 like the lock guide 103. The lock guide 115 is screwed to the main body 100 with one screw (in a one-stop system) (FIG. 3).
[0039]
The opening / closing lid 2 will be described. The opening / closing lid 2 has a structure in which an upper lid fixing plate 200, an upper lid 300, a rotating ring 400, lock pieces 500 and 501, and an upper lid cover 600 are stacked in order from the bottom.
An upper cover fixing plate 200 formed of a thin metal plate is provided with eight screw mounting holes 201 (FIG. 3). On the upper surface of the upper lid fixing plate 200, a control circuit (not shown) including a plurality of switches having a diaphragm structure is formed. The control circuit is connected to the disk reproducing unit 702 by a flat cable (not shown).
[0040]
The upper lid 300 includes a hinge projection 303, eight screw mounting holes 307, three open / close lid holding claw guide holes 305, two lock piece rotation shafts 308 provided on the upper surface and protruding upward, and provided on the upper surface. It has three rotating ring holding claws 301 protruding upward, a waterproof cover mounting hole 309, a seal member mounting hole 310, and a rubber packing 304. As shown in FIG. 3, in the upper lid 300, the entire portion excluding the annular portion near the outer peripheral end forms a convex portion projecting upward (in a direction toward the upper lid cover 600).
A waterproof cover 701 is fitted from the upper side into a waterproof cover mounting hole 309 provided at the center of the upper lid 300, and is adhered with a waterproof adhesive. A seal member 700 (a push button of a switch of a control circuit) made of waterproof rubber is fitted into the seal member mounting hole 310 from below. An eaves portion (not shown) that protrudes outward is formed at the bottom peripheral edge of the seal member 700, and does not fall out from the upper lid 300. The upper lid 300 substantially covers the inside of the main body 100 in a state where the opening / closing lid 2 is closed.
[0041]
The opening / closing lid holding claw guide holes 305 are formed in three gaps between the lock guide mounting portions 114 of the main body 100 and the lock guides 103, 115, 116 (see FIG. 2), and when the opening / closing lid 2 is closed. The holes are formed so as to be overlapped (so that the shape of the projection surface when light perpendicular to the joint surface between the main body 100 and the opening / closing lid 2 is projected is substantially the same). The opening 306 of the opening / closing lid holding claw guide hole 305 is formed in the same shape as the opening 113 of the lock guide 103.
[0042]
An outwardly facing collar 302 is formed at the tip of the rotating ring holding claw 301 (FIG. 3).
The packing 304 is fitted inside the opening / closing lid holding claw guide hole 305 on the lower outer periphery of the upper lid 300 (on the side closer to the center of the upper lid). The packing 304 forms a closed circuit that does not include the opening / closing lid holding claw guide hole 305 (lock guide 103) therein. With the opening / closing lid 2 locked, the packing 304 is uniformly compressed by the upper lid 300 and the main body 100 to seal the inside of the main body. With the opening / closing lid 2 locked, there is no hole or gap related to the opening / closing mechanism inside the packing 304 of the upper lid 300. Instead of the configuration of the embodiment, the packing 304 may be attached to the main body 100, or may be attached to both the upper lid 300 and the main body 100.
[0043]
The rotating ring 400 includes an operation lever mounting portion 402 provided on a side surface, three opening / closing lid holding claws 404 protruding below the outer peripheral end, three rotating ring guide holes 406, and two lock piece guide holes 409. Is formed. As shown in FIG. 4, the lower surface of the rotating ring 400 has a concave portion that is recessed upward (in a direction toward the upper cover 600) from the outer peripheral end toward the center toward the center. The concave portion of the rotating ring 400 engages with the convex portion of the upper lid 300 such that the rotating ring 400 can rotate in the circumferential direction.
The operation lever 401 is screwed to the operation lever mounting portion 402 via a boss 403. Outside the tip of the opening / closing lid holding claw 404, there is provided a semi-cylindrical projection 405 that protrudes outward (in a direction away from the center of the rotating ring 400) (FIG. 5A).
[0044]
The rotating ring guide hole 406 is a hole formed in an arc shape centered on the rotation center of the rotating ring 400. The rotating ring guide hole 406 has an opening 408 and a tongue 407. The collar 302 of the rotating ring holding claw 301 (provided on the upper surface of the upper lid 300 and protruding upward) inserted through the opening 408 into the rotating ring guide hole 406 engages with the tongue-shaped piece 407. This makes it difficult for the rotating ring 400 to come off the upper lid 300 during assembly. In the embodiment, the rotating ring 400 rotates by engaging the concave portion on the inner surface with the convex portion of the upper lid 300 (the rotating ring 400 is guided by the convex portion of the upper lid 300 and rotates). The rotating ring holding claw 301 is not guided by the rotating ring guide hole 406 (the rotating ring holding claw 301 moves without contacting the side wall of the rotating ring guide hole 406). Both ends of the rotating ring guide hole 406 serve as rotation stoppers of the rotating ring 400 by locking the rotating ring holding claws 301.
Instead of the configuration of the embodiment, the rotating ring 400 may rotate as the rotating ring holding claw 301 is guided by the rotating ring guide hole 406. However, the configuration of the embodiment is preferable from the viewpoints of smooth rotation of the rotating ring 400 and the strength of the rotating ring.
[0045]
Each of the lock pieces 500 and 501 has a lock piece rotation center hole 502 and a link shaft 503 provided below and protruding downward. As shown in FIG. 4, the lower surfaces of the lock pieces 500 and 501 form concave portions that are depressed upward (in the direction toward the upper lid cover 600) from the outer peripheral ends toward the center. The concave portions of the lock pieces 500 and 501 have convex portions of the rotating ring 400 (because the lower side of the rotating ring 400 forms concave portions that are recessed upward so that the rotating ring 400 can rotate in the circumferential direction). , The upper side of the rotating ring 400 made of a thin resin material forms a convex portion.)
[0046]
The shape of the lock piece 501 is roughly point-symmetric with the lock piece 500 when viewed schematically (hereinafter, simply referred to as “lock piece” when not distinguished).
The lock piece rotation center hole 502 is fitted into the lock piece rotation shaft 308, and the linkage shaft 503 is inserted into the lock piece guide hole 409. When the rotation ring 400 rotates, the lock pieces 500 and 501 rotate around the lock piece rotation center hole 502 as the linkage shaft 503 is guided by the lock piece guide hole 409.
[0047]
The upper lid covers 600 and 601 will be described. Each of the upper cover covers 600 and 601 has four bosses 602 and a seal member mounting hole 603. The shape of the upper cover 601 is substantially the same as the shape of the upper cover 600 (hereinafter, simply referred to as “upper cover” when not distinguished). The positions of the bosses 602 correspond to the positions of the screw mounting holes 307 provided in the upper lid 300 and the screw mounting holes 201 provided in the upper lid fixing plate 200. The position of the seal member mounting hole 603 corresponds to the position of the seal member mounting hole 310 provided in the upper lid 300.
[0048]
The housing of the main body 100, the upper lid 300, the rotating ring 400, the operation lever 401, the lock pieces 500 and 501, and the upper lid covers 600 and 601 are molded products of resin. The upper lid fixing plate 200 is made of metal.
[0049]
A method of assembling the main body 100 will be described. The disc reproducing unit 702 assembled in advance is disposed inside the main body 100 by a predetermined process. The lock guide 113 is screwed to the lock guide mounting portion 114 of the main body 100. The other two lock guides are similarly attached to the main body 100.
[0050]
A method for assembling the opening / closing lid 2 will be described. The rotating ring 400 is placed on the upper lid 300 such that the concave portion of the rotating ring 400 is engaged with the convex portion of the upper lid 300, and the opening 408 of the rotating ring guide hole 406 is aligned with the rotating ring holding claw 301. Place. In this state, the opening / closing lid holding claw 404 is inserted into the opening 306 of the opening / closing lid holding claw guide hole 305. The rotating ring 400 is rotated clockwise on a plane parallel to the lower surface of the upper lid 300 (the surface defined by the packing 304) until the rotating ring holding claw 301 comes into contact with the end of the rotating ring guide hole 406 and is locked. Move. At the time of rotation, the tongue-shaped piece 407 slides below the collar 302, and the projection 405 projects outward from the outer peripheral end of the opening / closing lid holding claw guide hole 305, so that the rotating ring 400 comes off the upper lid 300. Absent.
[0051]
The lock piece rotation center hole 502 of the lock piece 500 is fitted into the lock piece rotation shaft 308 of the upper lid 300, and the lock piece 500 is closed so that the concave portions of the lock pieces 500 and 501 engage with the convex portions of the rotating ring 400. 300 and the rotating ring 400. In this state, the link shaft 503 of the lock piece 500 is inserted into the lock piece guide hole 409 of the rotating ring 400. Similarly, the lock piece 501 is placed on the upper lid 300 and the rotating ring 400.
[0052]
The position of the seal member mounting hole 603 of the upper cover 600 is aligned with the seal member 700, and the upper cover 300 is placed on the lock piece 500. Similarly, the upper lid cover 601 is placed on the upper lid 300 and the lock piece 500.
The eight screw mounting holes 201 of the upper cover fixing plate 200 are aligned with the screw mounting holes 307 of the upper cover 300, and are fixed to the boss 602 of the upper cover 600 with screws. Thereby, the upper lid fixing plate 200 is fixed to the upper lid 300, and the rotating ring 400 and the lock pieces 500 and 501 are rotatably held between the upper lid 300 and the upper lid cover 600.
[0053]
The lid 2 is assembled as described above. Since the rubber eaves provided on the bottom peripheral edge of the seal member 700 are pressed against the upper surface of the upper lid 300 by the upper lid fixing plate 200, water does not enter from the outside to the inside of the open / close lid 2.
[0054]
The hinge protruding piece 303 protruding from the upper lid 300 is fitted into the opening 102 of the hinge part 3 of the main body 100, and a pivot pin (not shown) passes therethrough, so that the opening / closing lid 2 can be rotated with respect to the main body 100. Attach.
The user closes the opening / closing lid 2 and pushes the rotating lever 401 attached to the rotating ring 400 clockwise or counterclockwise on a plane parallel to the plane defined by the packing 304 (the joint surface between the opening / closing lid 2 and the main body 100). By moving clockwise, the rotating ring 400 is rotated in its circumferential direction, and the opening / closing lid 2 can be locked or released.
[0055]
The operation of the lid opening / closing device according to the first embodiment configured as described above will be described with reference to FIGS. 5 (a) and 5 (b).
FIGS. 5A and 5B are perspective views of a main part of the lid opening and closing device of the portable compact disc device 1 in a released state and a locked state. The user closes the opening / closing lid 2 and moves the rotating lever 401 attached to the rotating ring 400 clockwise or counterclockwise on a plane parallel to the joint surface between the opening / closing lid 2 and the main body 100 to thereby open and close the lid. 2 can be locked or released.
[0056]
In the released state, the open / close lid holding claw 404 is located at the opening 113 of the lock guide 103 (FIG. 5A). The position where the rotating ring 400 is rotated in the counterclockwise direction and the rotating ring holding claw 301 contacts the end of the rotating ring guide hole 406 is the position in the released state. At this time, the rotating ring holding claw 301 disposed on the upper lid 300 is located at the opening 408 of the rotating ring guide hole 406.
[0057]
The locking operation is performed by rotating the rotating ring 400 clockwise on a plane parallel to the joint surface between the cover 2 and the main body 100. The protrusion 405 of the opening / closing lid holding claw 404 rotates while abutting on the lower surface of the lock guide 103, and approaches the protrusion 112 provided on the lock guide 103. The lock guide 103 is inclined toward the convex 112 from an intermediate point between the opening 113 and the convex 112. As the protrusion 405 of the opening / closing lid holding claw 404 moves along the inclined portion 117 of the lock guide 103, the opening / closing lid 2 is gradually pressed against the main body 100. Thereby, compressive stress is uniformly applied to the entire rubber packing 304. The opening / closing lid 2 comes into close contact with the main body 100. At this time, the lock guide 103 is also elastically deformed to some extent.
[0058]
The protrusion 405 comes into contact with the protrusion 112 and gets over it, thereby completing the lock (FIGS. 1 and 5B). The lock guide 113 and the protrusion 405 elastically deform when the protrusion 405 climbs over the protrusion 112. When the protruding portion 405 climbs over the protruding portion 112, the user is given a feeling (click feeling) that the opening / closing lid 2 is locked. The convex portion 112 further prevents the operation lever 401 from touching something and releasing the user from unintended release. When the projection 405 has passed over the projection 112, the rotating ring holding claw 301 moves to the end of the rotating ring guide hole 406, and the rotating ring 400 does not rotate any more.
[0059]
The housing of the main body 100 is integrally molded. The upper surface is a joint surface with the opening / closing lid 2 and is provided with three lock guides. The rotating ring 400 including the three opening / closing lid holding claws 404 is integrally formed. A plane defined in a locked state of the three opening / closing lid holding claws 404 of the integrally formed rotating ring 400 has a high degree of parallelism with a joint surface between the opening / closing lid 2 and the main body 100. The open / close lid 2 is pressed against the main body 100 by the three sets of the open / close lid holding claws 404 and the lock guide so as to apply uniform pressure to all contact surfaces. The user can reliably lock the open / close lid 2 by one operation of rotating the operation lever 401 clockwise.
[0060]
The release operation is performed by rotating the operation lever 401 counterclockwise in a direction parallel to the surface of the main body 100 from the locked state (FIG. 5B). In the process of moving the operation lever 401, the projection 405 of the opening / closing lid holding claw 404 gets over the projection 112 of the lock guide 103, and a feeling of release is obtained. When the rotating ring 400 is rotated until the projection 405 of the opening / closing lid holding claw 404 faces the opening 113 of the lock guide 103, the opening / closing lid 2 is released (FIG. 5A). The rotating ring holding claw 301 moves to the end of the rotating ring guide hole 406, and the rotating ring 400 does not further rotate. The opening / closing lid 2 can be turned with respect to the main body 100.
[0061]
According to the lid opening and closing device of the first embodiment, the user can lock and release the opening and closing lid 2 by only one operation of moving the operation lever 401. The opening / closing lid 2 is fixed to the main body 100 at three points that are substantially uniformly distributed on the outer peripheral end of the upper surface of the main body by three sets of opening / closing lid holding claws and lock guides. The locking or releasing operation is performed by engaging or disengaging the three opening / closing lid holding claws 404 provided on the outer peripheral end of the rotating ring 400 with the lock guide provided on the upper peripheral end of the main body. The packing 304 could be provided inside the moving path of the rotating ring 400, which is a movable part of the apparatus. There is no movable part of the lid opening / closing device inside the packing 304. At the time of locking, the packing 304 arranged on the upper lid 300 is pressed uniformly against the main body 100, so that water does not enter inside from between the main body 100 and the opening / closing lid 2.
[0062]
Since the lock guide 103 has the convex portion 112, the user can surely sense the completion of the lock and obtain a good lock state. From the locked state, the rotating ring 400 does not rotate toward the release side against the intention of the user, and the locked state can be reliably maintained.
[0063]
Since the lock guide 103 has the inclined portion 117, the opening / closing lid 2 gradually approaches the main body 100 when the rotating ring 400 rotates clockwise. The opening / closing lid 2 gradually moves away from the main body 100 when the rotating ring 400 rotates counterclockwise. Thereby, at the time of locking, the force pressing the opening / closing lid 2 against the main body 100 can be gradually increased, and at the time of release, the force pressing the opening / closing lid 2 against the main body 100 can be gradually reduced. When the user operates the operation lever 401, the feeling of lock or release is transmitted to the user's hand.
[0064]
The waterproof cover 701 may be formed integrally with the upper lid 300. The upper cover 600 and the upper cover 601 may be integrally formed.
In the lid opening and closing device of the first embodiment, three lock guides are used. Instead, the lid opening / closing device arranges the rotation axis of the hinge 3 so that stress acts on the hinge 3 in a direction in which the lid 2 and the main body 100 are in close contact with each other when the lid 2 is closed. , The main body 100 may have two arc-shaped lock guides 103 and 115.
The shape of the lock guide may be a shape having a convex portion and not having an inclined portion. The inclined portion and the convex portion may also be used.
[0065]
<< Embodiment 2 >>
A portable compact disc device provided with a lid opening / closing device according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 6 is an exploded perspective view of a main body, an upper lid, a rotating ring, and a lock piece of a portable compact disc device having a lid opening / closing device according to the second embodiment of the present invention.
The lid opening / closing device according to the second embodiment of the present invention is obtained by replacing the main body 100 of the lid opening / closing device 1 of the second embodiment with the main body 800, the lock piece 500 with the lock piece 900, and the lock piece 501 with the lock piece 901. It is. Other configurations are the same as those of the lid opening and closing device of the first embodiment. The same reference numerals are given to the same parts as in the first embodiment, and the drawings and description are incorporated.
[0066]
Each of the lock pieces 900 and 901 has a lock piece rotation center hole 902, a link shaft 903, a lock portion 911, and a convex portion 910. The lock pieces 900 and 901 are obtained by adding a lock portion 911 and a protrusion 910 to the lock pieces 500 and 501 of the first embodiment, respectively. The lock piece rotation center hole 902 is the same as the lock piece rotation center hole 502 of the first embodiment, and the lock piece rotation shaft 308 provided on the upper lid 300 is fitted therein. The link shaft 903 is the same as the link shaft 503 of the first embodiment, and is inserted into a lock piece guide hole 409 provided in the rotating ring 400. The lock portion 911 is provided with a prismatic convex portion 910 facing inward. In general, the shape of the lock piece 901 is substantially point-symmetric with the lock piece 900.
[0067]
The lock piece rotation shaft 308 is fitted into the lock piece rotation center hole 902, and the linkage shaft 903 is inserted into the lock piece guide hole 409. When the rotation ring 400 is rotated, the lock pieces 900 and 901 make a rotation about the lock piece rotation center hole 902 as the link shaft 903 is guided by the lock piece guide hole 409. Lock piece 900 and lock piece 901 are formed of resin.
The main body 800 is further provided with a concave portion 810 on the side surface of the main body 100. The concave portion 810 is formed so as to engage with the convex portion 910 when locked.
[0068]
The method for assembling the lid opening and closing device according to the second embodiment of the present invention is the same as the method for assembling the lid opening and closing device according to the first embodiment, except that the main body 100 is locked to the main body 800, the opening 102 is locked to the opening 802, and the lock piece 500 is locked. Since the lock piece 501 is replaced with the lock piece 901, the lock piece rotation center hole 502 is replaced with the lock piece rotation center hole 902, and the linkage shaft 503 is replaced with the linkage shaft 903, the description is omitted.
[0069]
The operation of the lid opening / closing device according to the second embodiment will be described with reference to FIGS. The description of the same operation as in the first embodiment is omitted. The user closes the opening / closing lid 2 and moves the rotating lever 401 attached to the rotating ring 400 clockwise or counterclockwise on a plane parallel to the joining surface between the opening / closing lid 2 and the main body 100 to thereby rotate the opening / closing lid 2. Can be locked or released.
The opening / closing lid 2 is locked / released by the lid opening / closing device of the first embodiment, and at the same time, is locked / released by the lock pieces 900 and 901 of the second embodiment. The lid opening / closing device according to the second embodiment has a double lock structure. A mechanism by which the opening / closing lid 2 is locked / released by the lock pieces 900 and 901 will be described. 7A is a plan view of the portable compact disk device according to the second embodiment in a released state of the lid opening / closing device, and FIG. 7B is a cross-sectional view taken along the line XX. FIG. 8A is a plan view of the lid opening / closing device in a locked state, and FIG. 8B is a sectional view taken along the line YY.
[0070]
In the released state (FIG. 7), the link shaft 903 is located at the counterclockwise end of the lock piece guide hole 409 provided on the rotating ring 400, and the convex portion 910 of the lock portion 911 moves from the concave portion 810 of the main body 800. is seperated.
During the locking operation, the lock piece 900 rotates around the lock piece rotation shaft 308, and the convex portion 910 gradually approaches the concave portion 810.
The protrusion 910 fits into the recess 810, and the lock is completed (FIG. 8). In the locked state, the link shaft 903 is located at the clockwise end of the lock piece guide hole 409 provided in the rotating ring 400. The lock piece 901 performs the same operation as the lock piece 900.
[0071]
In the release operation, the operation lever 401 is rotated counterclockwise in a direction parallel to the surface of the main body 800 from the locked state (FIG. 8). In the process of moving the operation lever 401, the lock piece 900 makes a pivotal movement about the lock piece rotation shaft 308, and the protrusion 910 gradually moves away from the recess 810. When the rotating ring 400 is rotated to a position where the convex portion 910 is separated from the concave portion 810, the opening / closing lid 2 is released (FIG. 7). The opening / closing lid 2 can be turned with respect to the main body 800.
[0072]
According to the lid opening / closing device of the second embodiment, the user can lock / release the lid 2 doubly by only one operation of moving the operation lever 401. The opening / closing lid 2 is fixed to the main body 800 by two lock pieces.
[0073]
As the concave portion 810 engages with the convex portion 910, the concave portion 810 moves in a direction in which the convex portion 910 guides the convex portion 910 in a direction in which the opening / closing lid 2 and the main body 100 come into close contact with each other, and / or moves in a direction in which the convex portion 910 overcomes the inclined surface. A convex portion for holding the concave portion 810 may be provided on the upper surface of the concave portion 810.
The convex portion 910 is inclined such that the convex portion 910 moves in a direction in which the opening / closing lid 2 and the main body 100 come into close contact with each other as the concave portion 810 is engaged, and a sliding surface with the concave portion 810 (the upper surface of the convex portion 910). May be provided.
[0074]
Instead of the configuration of the embodiment, the lid opening and closing device may have the following configuration.
The lid opening / closing device may have a configuration in which the lock pieces 500 and 501 are not provided, and the upper lid cover 600 sandwiches only the rotating ring 400 between the upper lid 300 and the upper lid 300 (a modification of the first embodiment).
The lid opening and closing device does not include the lock pieces 500 and 501 and the upper lid cover 600, and the rotating ring 400 may be held only by the rotating ring holding claw 301 of the upper lid 300. In this case, for example, a stopper is attached to the rotating ring guide hole 406 so that the rotating ring holding claw 301 does not come off the opening 408 of the rotating ring guide hole 406. The rotating ring 400 may be guided and rotated by the rotating ring holding claw 301 and the rotating ring guide hole 406.
[0075]
The main body 100 (or 800) may be a lid opening / closing device having an opening / closing lid holding claw instead of the lock guides 103, 115, and 116, and the rotating ring 400 having a lock guide instead of the opening / closing lid holding claw 404.
A lid opening / closing device in which a main body 800 has a convex portion provided on a side surface and protruding outward instead of the concave portion 810, and lock pieces 900 and 901 have concave portions formed in the lock portion 911 instead of the convex portion 910. (A modification of the second embodiment).
The upper lid 300 has a lock piece rotation center hole that does not penetrate in place of the lock piece rotation center axis 308, and the lock pieces 500 and 501 (or 900, 901) replace the lock piece rotation center hole 902 with the lock piece rotation center axis. The opening and closing device may have a lid.
The rotating ring 400 has a link shaft instead of the lock piece guide hole 409, and the lock pieces 500, 501 (or 900, 901) have lock piece guide holes (preferably not penetrating) instead of the link shaft 903. The opening and closing device may have a lid.
Each component may be formed of a lightweight metal (for example, aluminum or magnesium) instead of resin.
[0076]
The present invention is not limited to a portable compact disk device, but is applicable to any device having an opening / closing mechanism (particularly a device requiring a certain degree of hermeticity, including disk devices other than the compact disk device). .
[0077]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the advantageous effect of being able to implement | achieve the lid opening / closing apparatus which has a uniformly high sealing property although there is only one operation place is acquired. ADVANTAGE OF THE INVENTION According to this invention, it has high airtightness (for example, the airtightness which shows waterproof effect more than a life waterproof type), easy to open and close a lid, is durable, inexpensive, easy to assemble (the number of parts is small), and has high reliability. An advantageous effect is obtained that a light and small lid opening and closing device having a property can be realized. According to the present invention, a new opening / closing method of the lid by further rotating the rotating ring is realized (excellent design is realized, and the new lid opening / closing operation method gives a fresh impression to the user). An advantageous effect that a switchgear can be realized is obtained.
INDUSTRIAL APPLICABILITY The lid opening / closing device of the present invention can be widely used as a lid opening / closing device attached to a main body so as to be openable and closable. For example, the lid opening and closing device of the present invention is useful as a portable compact disc device that requires waterproofness and dustproofness, and a lid opening and closing device that is used in a compact container for cosmetics that requires airtightness.
[Brief description of the drawings]
FIG. 1 is an external view of a portable compact disc device provided with a lid opening / closing device according to a first embodiment of the present invention in a locked state.
FIG. 2 is a perspective view showing a state in which an opening / closing lid of the portable compact disc device is opened.
FIG. 3 is an exploded perspective view of a main part of the portable compact disc device.
FIG. 4 is an exploded perspective view of a main body, an upper lid, a rotating ring, and a lock piece of the portable compact disc device.
FIG. 5A is a perspective view of a main part of the portable compact disc device with the lid opening / closing device in a released state, and FIG. 5B is a perspective view of the portable compact disc device with the lid opening / closing device locked. Part perspective view
FIG. 6 is an exploded perspective view of a main body, an upper lid, a rotating ring, and a lock piece of a portable compact disc device having a lid opening / closing device according to a second embodiment of the present invention.
FIG. 7A is a plan view of the portable compact disk device in a released state of a lid opening / closing device, and FIG. 7B is a cross-sectional view taken along the line XX.
8 (a) is a plan view of the portable compact disc device in a locked state of a lid opening / closing device, and FIG. 8 (b) is a sectional view taken along the line YY.
[Explanation of symbols]
1 Portable compact disc device
2 Open / close lid
3 hinge part
100 body
102 opening
103 Lock Guide
110 Screw mounting hole
111 Screw mounting hole
112 convex
113 opening
114 Lock guide mounting part
115 Lock Guide
116 Lock Guide
117 Slope
200 Upper lid fixing plate
201 Screw mounting hole
300 top lid
301 Rotating ring holding claw
302 spit
303 Hinge projection
304 packing
305 Open / close lid holding claw guide hole
306 opening
307 Screw mounting hole
308 Lock piece rotating shaft
309 Waterproof cover mounting hole
310 Seal member mounting hole
400 rotating ring
401 Operation lever
402 Operation lever mounting part
403 Boss
404 Opening / closing lid holding claw
405 protrusion
406 Rotating ring guide hole
407 tongue
408 opening
409 Lock piece guide hole
500 lock pieces
501 Lock piece
502 Lock piece rotation center hole
503 Linking shaft
600 Top cover
601 Top cover
602 boss
603 Seal member mounting hole
700 Sealing member
701 Waterproof cover
702 Disc playback unit
800 body
802 opening
810 recess
900 lock piece
901 lock piece
902 Lock piece rotation center hole
903 Linking shaft
910 convex part
911 Lock section

Claims (15)

A main body having a hinge portion and at least three arc-shaped lock guides arranged on the same circumference; and an opening / closing lid attached to the main body so as to be openable and closable,
The opening / closing lid,
An upper lid having the same number of open / close lid holding claw insertion holes as the lock guides and a first convex portion, rotatably supported by the hinge portion, and substantially covering the main body when the open / close lid is closed; When,
A plurality of open / close lid holding claws that are inserted into the open / close lid holding claw insertion holes and can engage with or disengage from the respective lock guides, and engage with the first protrusions so as to be rotatable in a circumferential direction; A rotating ring having a first concave portion;
An upper lid cover attached to the upper lid and rotatably holding the rotating ring between the upper lid and the upper cover.
With
A lid opening / closing device, wherein the main body and the opening / closing lid are locked or unlocked by the opening / closing lid holding claw engaging with or disengaging from the lock guide with the rotation of the rotating ring. . The upper lid further has a plurality of rotating ring holding claws,
The rotating ring has a plurality of rotating ring guide holes that engage with the respective rotating ring holding claws so as to hold the rotating ring rotatably in a circumferential direction thereof. A lid opening / closing device according to claim 1. A main body having a hinge portion and at least three arc-shaped lock guides arranged on the same circumference; and an opening / closing lid attached to the main body so as to be openable and closable,
The opening / closing lid,
It has a plurality of rotating ring holding claws and the same number of opening / closing lid holding claw insertion holes as the lock guide, is rotatably supported by the hinge portion, and substantially covers the main body when the opening / closing lid is closed. The top lid,
A plurality of opening / closing lid holding claws that are inserted into the opening / closing lid holding claw insertion holes and engage with or separate from the respective lock guides, and the respective rotation rings so as to hold the rotation ring rotatably in the circumferential direction thereof. A rotating ring having a plurality of rotating ring guide holes engaged with the holding claws;
With
A lid opening / closing device, wherein the main body and the opening / closing lid are locked or unlocked by the opening / closing lid holding claw engaging with or disengaging from the lock guide with the rotation of the rotating ring. . The lid opening / closing device according to claim 2 or 3, wherein both ends of the rotation ring guide hole function as rotation stoppers of the rotation ring by locking the rotation ring holding claws. . In a state where the opening / closing lid is closed, a rotation axis of the hinge part is arranged such that stress acts on the hinge part in a direction in which the opening / closing lid and the main body are in close contact with each other,
The lid according to any one of claims 1 to 4, wherein the main body has at least two arc-shaped lock guides instead of the at least three arc-shaped lock guides. Switchgear. The lock guide has an inclined portion and / or a second convex portion,
When the opening / closing lid holding claw is moved in a direction to engage with the lock guide, the inclined portion guides the opening / closing lid holding claw in a direction in which the opening / closing lid and the main body come into close contact with each other, and the second convex The part holds the opening / closing lid holding claw, which has passed over the second convex part, so as not to move in a direction in which the rotating ring is unlocked. A lid opening / closing device according to the item. The main body further includes a plurality of second concave portions disposed on a side surface,
The opening / closing lid further includes a plurality of lock pieces each having a third protrusion disposed on a side surface and protruding inward, a lock piece rotation center hole, and a link shaft,
The upper lid further includes a plurality of lock piece rotation center shafts that are inserted through the lock piece rotation center hole and rotatably hold the lock piece,
The rotating ring further has a plurality of lock piece guide holes that are inserted through the link shaft and are eccentric from the rotation center of the rotating ring,
When the rotating ring is rotated in a direction in which the main body and the opening / closing lid lock, the third convex portion engages with the second concave portion by guiding the linkage shaft to the lock piece guide hole. The lid opening / closing device according to any one of claims 1 to 5, wherein the lock piece moves so as to perform the operation. The lid opening / closing device according to claim 7, further comprising an upper lid cover attached to the upper lid and rotatably holding the rotating ring and the lock piece between the upper lid and the lock ring. As the second concave portion engages with the third convex portion, the second concave portion climbs over the inclined surface that guides the third convex portion in a direction in which the opening / closing lid and the main body come into close contact with each other and / or climbs over the inclined surface. A fourth convex portion that holds the third convex portion so as not to move in a direction in which the rotating ring is unlocked, or
The second concave portion is inclined such that the third convex portion moves in a direction in which the opening / closing lid and the main body come into close contact with each other as the third convex portion engages with the second concave portion. 8. The lid opening / closing device according to claim 7, further comprising a sliding surface. The said main body and / or the said upper lid further form the closed circuit which does not contain the said lock guide in it, and further has the packing member which seals the inside in the state which closed the said opening / closing lid, The Claims 1 characterized by the above-mentioned. A lid opening / closing device according to claim 9. The said main body has the said opening / closing lid holding claw instead of the said lock guide, and the said rotating ring has the said lock guide instead of the said opening / closing lid holding claw, The Claim 1 characterized by the above-mentioned. A lid opening / closing device according to claim 7. The main body includes a third convex portion disposed on a side surface and protruding outward instead of the second concave portion, and the lock piece includes the second concave portion instead of the third convex portion. The lid opening / closing device according to any one of claims 7 to 11, characterized in that: The upper lid has the lock piece rotation center hole which does not penetrate in place of the lock piece rotation center axis, and the lock piece has the lock piece rotation center axis instead of the lock piece rotation center hole. A lid opening / closing device according to any one of claims 7 to 12. 14. The rotation ring according to claim 7, wherein the lock piece has the link shaft instead of the lock piece guide hole, and the lock piece has the lock piece guide hole instead of the link shaft. A lid opening / closing device according to any one of the preceding claims. 15. A disk device comprising the lid opening / closing device according to any one of claims 1 to 14, wherein an operation unit is provided on the upper lid inside the rotating ring.

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