JPH056606Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a heart disk, especially a double-sided heart disk, housed in a case.
It is related to cartridges.

[Conventional technology]

Generally, a compact disc (CD) or video disc (LD) as an information recording carrier is removed from a packaging case and set in a recording/playback device such as a disc player for use.

[Problem that the invention attempts to solve]

Conventional disks of this type tend to collect dirt and dust during handling, are particularly susceptible to damage, and are also affected by temperature changes, so it is necessary to protect the disks from these.For this reason, a tray system or cartridge system is adopted. However, if a double-sided hard disk is stored in the disk storage area of the tray or case, the disk will come into contact with the case and the above requirement cannot be met. During transportation, the recording surface of the disk may come into contact with the inner wall of the case and get dirty, or the recording surface may be damaged by being rubbed.Not only does it have the problem of being easily affected by temperature, but it also has the disadvantage of being complicated to handle. Ta.

The present invention aims to eliminate these conventional drawbacks.The purpose of this invention is to keep the disc suspended in the case except when driving the disc, so that the recording surface of the disc does not come into direct contact with the case. To provide a disk/cartridge that can be safely and securely held inside the case without rattling.

[Means for solving problems]

The present invention has a case A consisting of a disk 3 and an upper case 1 and a lower case 2 for rotatably housing the disk 3, and a window 4 formed in the case A for inserting a recording/playback head can be opened and closed. A disk case A equipped with a shutter 5, an actuating member 6 for locking or releasing the shutter 5, and a disk receiving member 7 connected to the actuating member 6 and receiving the upper and lower surfaces and the outer peripheral end surface of the disk 3. In the cartridge, when the shutter 5 is closed, the disk 3 is held at approximately the center in the thickness direction of the case and urged toward the rear side of the case, and when the shutter 5 is opened, the disk receiving member 7 is arranged so as to be separated from the disk 3. At the same time, this disk receiving member 7
This disc/cartridge is characterized in that a pressing part that comes into corresponding contact with the outer periphery of the disc is constituted by an elastic body 20 formed integrally with the disc support member 7.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 6. It has a case A consisting of a disk 3, an upper case 1 and a lower case 2 that rotatably accommodate the disk 3, and a record formed in this case A. - A shutter 5 that opens and closes the playback head insertion window 4, an operating member 6 that locks or releases the shutter 5, and a disk that is connected to the operating member 6 and receives the upper and lower surfaces and outer peripheral end surface of the disk 3. A receiving member 7 is provided in the case A, the operating member 6 is slidable in the cartridge insertion direction, and the sliding movement of the operating member 6 allows the disk receiving member 7 to move toward and away from the disk 3. When closed, the disc 3 is held at approximately the center in the thickness direction of the case and biased towards the rear side of the case so that the disc 3 can be supported in a suspended state within the case A. The disk receiving portion 7 is arranged so as to be separated from the disk 3 when opened.

The shutter 5 is composed of a clamping plate member having a U-shaped cross section that is slidably fitted along both surfaces of the upper case 1 and lower case 2 of the case A, and has a collar for locking the operating member 6. The lock member 61 is connected to the lock member ₆₁ .

The operating member 6 is an operating lever for operating each operating section, and has a hook-shaped lock portion ₆₁ at one end that locks the shutter 5, and a slide formed on the side wall of the case A is provided on the side surface of the operating member. An operating piece 6 ₂ is provided that projects from the sliding notch 12 , and a closing wall 6 ₄ that continuously covers the operating piece sliding notch 12 is integrally extended near the side wall of the case A. A guide groove ₆₃ is provided into which a guide pin 10, which serves as a connecting portion for the disk receiving member 7, is loosely fitted.A pair of actuating members 6 are provided facing each other near both sides of the insertion side front surface of the case A. It is fitted in a groove or between the inner grooves so as to be slidable, and is biased toward the front insertion side of the case A by the spring member 8 that is engaged with the spring receiving part 14 and the spring supporting part 13. There is.

Further, the disk support member 7 is a claw member having a U-shaped cross section and a recess ₇₁ along the outer periphery of the disk 3, which also functions as a lifter for lifting the disk 3, and is rotatable by a support shaft 11. A pair of elastic plates are provided inside the case facing the case insertion side to allow slight up-and-down movement, and at least the disk outer periphery contact pressing portion is provided on the inner surface of the recess ₇₁ that contacts the outer periphery of the disk. Although the body 20 is integrally molded with cutout grooves 21 and 22,
One end is a free end and a tongue-like elastic body is provided to press and bias the outer peripheral portion of the disk. This elastic body 20 can be placed not only in the inner part of the recess 7 1 but also above the recess 7 ₁ by selecting the material and shape of the disc support member 7 so that it has appropriate pressing elasticity as a member that comes into contact with the outer periphery of the _disc . The notch grooves 21 and 22 may be provided protruding from the lower surface, and consideration has been given to providing the cutout grooves 21 and 22 to prevent shaking due to vibration and the like and to suppress occurrence of wear and tear such as scratching of the contact portion.

In the example shown in FIGS. 7 to 10, a tongue-shaped elastic pressing piece is formed along a notch 21 with one end cut out in the recess ₇₁ of the U-shaped tip of the disk receiving member 7, and notch grooves 22 are formed on both sides. However, as shown in FIGS. 11 to 14, the tip head 7 ₃ has a U-shape with a stepped recess 23 formed therein.
An elastic body 20 is provided inside the recess ₇₁ as a tongue-shaped elastic pressing piece so that the elastic body 20 can be elastically deformed and inserted into the stepped recess 23.

If necessary, an elastic member made of rubber or a soft plastic material such as polyethylene, polypropylene or vinyl chloride may be attached to the upper and lower surfaces of the recess ₇₁ of the disk receiving member 7. This is useful for preventing the rattling of No. 3 or damage to the outer periphery of the disk.

The approximately U-shaped tip formed at one end of the disk receiving member 7 has a concave portion ₇₁ whose inner upper and lower surfaces are tapered inclined surfaces ₇₂ that serve as disk guide surfaces or tapered tongues formed into rounded curved surfaces. The disk 3 is easily inserted into the recess ₇₁ , and a guide pin 10 is provided protruding from the other end to loosely fit into and connect to the guide groove ₆₃ of the actuating member 6 for interlocking operation. However, since the guide groove ₆₃ and the guide pin 10 are provided in a relative relationship, they may be provided in the opposite manner.

Further, as the spring member 8, a coil spring may be tensioned in the sliding direction of the operating member 6, a coil spring may be tensioned between the interlocking disc support member 7 and the case fixing part, or a coil spring may be tensioned between the interlocking disc support member 7 and the case fixing part, or a coil spring may be tensioned between the interlocking disc support member 7 and the case fixing part. It is also possible to wrap a coil spring around 11 to provide a restoring force, and in either case, a biasing force is applied to the actuating member 6 in the direction toward the front insertion side.

Furthermore, in the embodiment, on the rear surface side opposite to the front surface on the insertion side of the case A, the inner bottom surfaces 1 ₁ , 2 1 of each case 1 and ₂ are formed on at least a part of the inner side of the case against which the stored disk hits. Inclined surface portions 1 ₂ , 2 ₂ are provided toward approximately the center in the thickness direction of the case so that the disk 3 is guided toward the center.

These inclined surfaces 1 ₂ , 2 ₂ have slippery disk holding members 1 ₃ , 2 ₃ that run along the surfaces, such as ultra-high molecular weight polyethylene, ultra-high molecular weight polyethylene foam, graphite Teflon, polyethylene terephthalate (PET) or stainless steel. Select metal sheets such as upper case 1 and lower case 2.
The inner bottom surfaces 1 ₁ , 2 ₁ of the inner bottom surfaces 1 1 and 2 1 may be included and adhered and fixed facing each other.

In the figure, 1 ₄ and 2 ₄ are concave surfaces formed on the inner bottom surface of the case and are formed in the movement range of the disk receiving member 7.

Reference numeral ₆₄ denotes a closing wall portion, which is provided on the actuating member 6 and is used as a dustproof cover piece for blocking dust from entering the case A through the operation piece sliding notch 12.

₁₁₁ is a pedestal that supports the disk support member 7.
15 is a screw, 16 is a groove, 17 is a slippery adhesive sheet, and 18 is a rib.

When the disc/cartridge is inserted and set into the disc player, the operation pieces ₆₂ protruding from both sides of the cartridge engage with the protrusions of the insertion opening, and the operation pieces ₆₂ slide toward the rear side of the cartridge. By this sliding of the operating member 6, the shutter 5 is released from the hook-shaped lock portion ₆₁ of the operating member 6, and the shutter 5 is moved in the window opening direction by an opening/closing mechanism (not shown) within the device to the open position. At the same time, the disk support member 7 rotates around the support shaft 11 and separates from the disk 3 in the case A, releasing the disk 3 held by the elastic body 20 in the disk support member 7, and releasing the disk 3. is securely supported on a lubricious adhesive sheet 17 at the inner bottom of the disk storage area, and subsequently retained within the device in engagement with a drive member (not shown). On the other hand, when the cartridge is taken out from the disk player, the disk 3 is disengaged from the drive member within the case, and the slippery adhesive sheet 17
The shutter 5 is then moved in the closing direction by the opening/closing mechanism to close the window 4, and the operating member 6 is slid toward the front insertion side by the spring member 8 to open the disk receiving member 7. Interlockingly, the disk 3 is inserted into the recess ₇₁ , and while the disk 3 is held in a raised state approximately at the center in the thickness direction of the case via the elastic body 20, the disk 3 is inserted into the rear surface on the opposite side from the case insertion side. At the same time, the lock portion ₆₁ closes and holds the shutter 5. Therefore, the recording surface of the disk 3 is not rubbed and scratches are prevented from occurring, allowing safe use, and even during handling, the disk 3 is guided to the center position within the case and can be kept floating in the air.

[Effect of idea]

In the present invention, an elastic body 20 is formed integrally with a disk receiving member 7 connected to the actuating member 6 and receiving the upper and lower surfaces and the outer peripheral end of the disk 3, and a pressing portion correspondingly contacted with the outer peripheral portion of the disk. Since the disc 3 is supported by an elastic body, and is held and fixed in contact with a position along the outer circumferential surface of the disc, it is possible to properly support the disc without applying excessive force. Since the contacting member on the outer periphery of the disk has appropriate pressing elasticity, it is possible to prevent rattling due to vibrations and the like, and also to suppress the occurrence of scratching of the contact area.Furthermore, only the non-recording surface of the disk can be suspended by the disk support member. Since it is held in the case, it can be used safely without affecting the recording surface, and the contacting member on the outer periphery of the disk is integrally molded with the disk receiving member, making the construction simple and reducing costs significantly. This increases the frictional resistance of the disc, making it possible to prevent rattling in the circumferential direction of the disk and in the case thickness (up and down) directions. Further, since the shutter is locked by the operating member when closed, the shutter is not opened or closed except when the cartridge is in use, thereby preventing dirt from entering the cartridge or damage from the outside.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view, FIG. 2 is a vertical sectional view taken along the line shown in FIG. 1, FIG. 3 is a partially enlarged plan view, and FIG. 4 is a partially cutaway side view of the disk support member. Figure 5 is its slope view, Figure 6 is Figure 1-
7 is a plan view of the disk support member, FIG. 8 is a side view thereof, FIG. 9 is a front view from the tip direction, FIG. 10 is a plan view of the working state, and FIG. 11 12 is a side view thereof, FIG. 13 is a front view from the direction of the distal end thereof, and FIG. 14 is a plan view of the disk receiving member in an operating state. A...Case, 1...Upper case, 2...Lower case, 3...Disk, 4...Window for head insertion,
5... Shutter, 6... Operating member, 7... Disk receiving member, 7 ₁ ... Recess, 8... Spring member, 10
... Guide pin, 11 ... Support shaft, 12 ... Operation piece sliding notch, 20 ... Elastic body, 21, 22 ...
Notched groove.

Claims (1)

[Claims for Utility Model Registration] 1. A case AA consisting of a disk 3, an upper case 1 and a lower case 2 that rotatably accommodate the disk 3, and records and records formed in this case A.
Shutter 5 that opens and closes the playback head insertion window 4
In a disk cartridge in which a case A is provided with an actuating member 6 for locking or releasing the shutter 5, and a disk receiving member 7 connected to the actuating member 6 and receiving the upper and lower surfaces and the outer peripheral end surface of the disk 3. , when the shutter 5 is closed, the disk 3 is held at approximately the center in the thickness direction of the case and urged toward the rear side of the case, and when the shutter 5 is opened, the disk receiving member 7 is arranged so as to be spaced apart from the disk 3; A disk/cartridge characterized in that a pressing portion of the disk receiving member 7 which corresponds to and comes into contact with the outer peripheral portion of the disk is constituted by an elastic body 20 formed integrally with the disk receiving member 7. 2. A utility model in which the disk receiving member 7 is a pawl member having a U-shaped cross section and having a recess ₇₁ formed along the outer periphery of the disk, and is rotatably provided on a support shaft 11. The cartridge according to claim 1. 3. The elastic body 20 is an elastic tongue piece, and has a cutout groove 21 in the recess ₇₁ along the outer periphery of the disk.
2. A cartridge according to claim 1 or 2, which is provided by forming a cartridge. 4. The disk receiving member 7 has a U-shaped tip in cross section, which is a disk holding portion that receives the disk 3 from above and below, and has notched grooves 22, 22 formed on the inner upper and lower surfaces of the recessed portion ₇₁ , and has one end. 3. A cartridge according to any one of claims 1 to 3, which is provided with an elastic body 20 having a free end.