JPH08315535A - Disk cartridge - Google Patents

Abstract

(57) [Abstract] [Purpose] In the assembly work of the disk cartridge, it is omitted to screw the shutter member to the slider in the assembly line. [Structure] A shutter and a slider are preliminarily integrated with each other, and the elastic deformation of the slider is used to insert the shutter and the open end of a box body constituting a disk cartridge. [Effect] The assembly operation of the disk cartridge is simplified. Further, since the shutter member can be integrally molded by injection molding of plastic, the cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge. In particular, the present invention relates to a disc cartridge that can simplify the work of accommodating the disc and assembling the cartridge.

[0002]

2. Description of the Related Art Disc cartridges are well known in the art.
It is formed as a substantially rectangular flat box body composed of an upper piece and a lower piece, and each piece has an opening for accessing the reproducing head, and one side surface thereof is open, and a shutter member is attached thereto. A case body member configured as described above, a disc housed in the case body member, a shutter member that includes a shutter that opens and closes the opening and a slider that guides the movement of the shutter are provided. To assemble the disc cartridge, first, the disc and the slider are placed on one piece of the case body member. Next, the other piece of the case body member is placed on this, and both pieces are fixed with screws. Then, cover it with a shutter, and fix the shutter to the slider with screws. Finally, a disk cartridge is completed by attaching a spring for urging the shutter in the direction of closing the opening.

[0003]

In the above-mentioned conventional method, the slider and the shutter are assembled separately, and then the slider and the shutter are fixed with screws, so that the work is complicated and the trouble occurs when tightening the screws. May be dusty.
In addition, advanced technology is required for processing screw holes, inserting screws and tightening screws. The present invention intends to simplify the assembling work of the disk cartridge by preliminarily integrating the slider and the shutter into a shutter member and attaching the shutter member when the case body member is assembled. It is a thing.

[0004]

DISCLOSURE OF THE INVENTION A disk cartridge according to the present invention is a conventional disk cartridge,
By changing the structure of the slider to assemble the case body member and then push the slider into the case body member by utilizing its elastic deformation, the slider and the case body member are slidably engaged. It is a thing. To explain the present invention in more detail, FIG. 1 is a plan view showing a state in which a slider 2 is attached to one side of a conventional case body member 1, and FIG. 1 (b) is a sectional view taken along line AA of FIG.
(C) is the BB sectional drawing. Figure 2 shows slider 2
It is a perspective view of.

The main body member 1k has a groove 4 on the right side and a ridge 5 on the left side across the opening 3 for accessing the reproducing head.
Are formed as guide portions for guiding the movement of the slider 2 along one side edge. Slider 2
Has slider legs 6 at both ends, and FIG.
, The slider leg 6 on the right side is the slider 2
Is composed of upper and lower leg pieces which are spaced and opposed to each other so that a spring for biasing the shutter in the shutter closing direction can be attached. The slider 2 is further provided with a guide piece 7 that slides on the side end of the main body member.

[0006] The disk cartridge according to the present invention is most simply the conventional disk cartridge in which the slider leg 6 of the slider 2 is elastically deformed from the open end surface of the case body member in the assembled state. The structure is such that it can be inserted, and after insertion, it is elastically restored and engages with the groove 4 or the ridge 5 and does not separate. Since the shutter is preliminarily connected to the slider so as to be integrated, the shutter attachment is completed at the same time by inserting and engaging the slider leg with the main body member.

In the disk cartridge according to the present invention, the slider leg 6 can elastically deform through the narrowest part of the gap between the upper piece and the lower piece of the open end of the main body member, and after the passage. Can have various shapes as long as it is elastically restored and can be engaged with the guide portion provided on the main body member. The shape of the guide portion is usually a groove or a ridge as shown in the figure, but it can be any shape as long as it can be engaged with the slider leg to prevent the slider from being detached and ensure smooth movement of the slider. can do. For example, FIG. 3 is a partial cross-sectional view including a slider leg at an open end of an example of a disc cartridge according to the present invention. A shutter member including a slider 2 and a shutter 8 is integrally molded by injection molding of plastic. In FIG. 3, the guide portion provided in the main body member 1 is formed so as to face both the upper piece and the lower piece constituting the main body member as the groove 4, and the slider leg 6 is fitted in the groove 4 and is the same. Is formed as an upper leg piece and a lower leg piece having the outer shape. The distance (a) of the narrowest part between the upper piece and the lower piece of the main body member 1 and the maximum width 6 of the slider leg 6 are
(B-a) is smaller than the distance (c) between the upper leg piece and the lower leg piece of the slider leg (b-a <c), so that the main body member is opened when the disk cartridge is assembled. When the slider leg of the shutter member faces the end and is pushed from behind, the upper leg piece and the lower leg piece of the slider leg 6 are elastically deformed inward and pass through the narrowest part of the main body member 1 to fit into the groove 4. . In FIG. 3, the space 9 provided in the slider body is for inserting a spring that biases the shutter member in the closing direction.

FIG. 4 is another example of a partial sectional view including the slider leg at the open end of the disk cartridge according to the present invention. Also in FIG. 4, the convex ridges 5 for guiding are provided symmetrically on both the upper and lower pieces of the main body member, and the slider legs 6 are formed as upper leg pieces and lower leg pieces having the same shape to engage with them. ing. In this case as well, the relationship (ba <c) is maintained. Although FIG. 4 shows the side where the shutter 8 is not attached, the shape of the guide portion provided on the main body member and the shape of the slider leg to be engaged with the guide portion can be selected regardless of whether or not the shutter is attached.

As described above, the disk cartridge according to the present invention typically has guide portions of the same shape formed on both the upper and lower pieces of the main body member so as to face each other, and is used for accessing the reproducing head. Guides are provided on both sides of the opening 3. Correspondingly, slider legs are provided at both ends of the slider, and the slider legs are composed of an upper leg piece and a lower leg piece that are opposed to each other with a space therebetween. However, the present invention is not limited to this, and various modifications are possible. For example, the guide portion may be provided only on one of the upper piece and the lower piece of the main body member, or may be provided only on one side of the opening 3 for accessing the reproducing head. Accordingly, the slider leg may be only one of the upper leg piece and the lower leg piece, or may be provided only on one end of the slider. For example, a reproducing member access opening 3 is sandwiched in the main body member 1, a guide portion is provided only on the upper piece on one side and only on the lower piece on the other side, and the slider portion corresponding to this is provided. Only the upper leg piece at one end, only the lower leg at the other end,
It can be provided so as to engage with this guide portion. In addition, as a modification, slider legs consisting of upper leg pieces and lower leg pieces are provided at both ends of the slider, but one end of these slider legs has only the upper leg piece, and the other end has one. It is also possible that only the lower leg pieces engage the respective guide portions, and the other slider leg pieces simply contact the main body member. FIG. 5 shows an example of such a combination of the guide portion and the slider leg.

In assembling the disc cartridge according to the present invention, the shutter and the slider are combined and used as an integrated shutter member. The shutter member may be formed by combining a shutter and a slider, which are molded separately, and are integrated with each other, but is preferably integrally molded by injection molding of plastic. FIG. 6 shows an example of such a shutter member integrally formed, in which the upper tongue piece 8-1 and the lower tongue piece 8-2 of the shutter 8 are the connecting pieces 8-3.
And the central portion of the connecting piece 8-3 is connected to the slider 2
The slider and the shutter are integrated by forming a part of the.

In a preferred aspect of the present invention, both the main body member and the shutter member are molded by injection molding of transparent synthetic resin such as polycarbonate, and the free end of the shutter, which is another component, is slidably held. The thin shutter holding plate provided for this purpose and the index label etc. that is attached to the surface of the cartridge and used for names etc. are also made of transparent material, so the discs stored inside can be easily seen from the outside become. This makes it possible to easily grasp the rotating state of the disc during playback, which is particularly advantageous for demonstrations at stores and exhibitions.

[0012]

The disk cartridge according to the present invention is
Since the shutter member in which the slider and the shutter are integrated is inserted into the open end portion of the cartridge case by utilizing the elastic deformation of the slider leg, the assembling work can be simplified. Further, when the shutter member is integrally molded by injection molding of synthetic resin, the number of parts is reduced as compared with the case where the slider and the shutter are separately manufactured and assembled with screws, so that the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view (a), an AA sectional view (b), and a BB sectional view (c) of a half surface of a conventional disc cartridge.

FIG. 2 is a perspective view of the slider shown in FIG.

FIG. 3 is a sectional view of an example of a portion including a slider and a shutter of the disc cartridge according to the present invention.

FIG. 4 is a sectional view of another example of a portion including the slider of the disc cartridge according to the present invention.

FIG. 5 is a sectional view of still another example of a portion including a slider and a shutter of the disc cartridge according to the present invention.

FIG. 6 is a perspective view of an example of a shutter member used for assembling the disc cartridge according to the present invention.

[Explanation of symbols]

 1 Body Member 2 Slider 3 Opening for Accessing Playhead 4 Guide (Groove) 5 Guide (Convex) 6 Slider Leg 7 Slider Guide Piece 8 Shutter 9 Spring Insertion Section

Claims (8)

[Claims] 1. A cartridge for accommodating a disk, comprising a case body member comprising an upper piece and a lower piece and having an opening for accessing a reproducing head, an openable / closable shutter for closing the opening, and opening / closing of this shutter. A disk cartridge having a shutter member composed of a slider for guiding the operation, wherein a guide portion for guiding the movement of the slider is provided along one side edge of the case body member, and the slider is a rod-shaped slider body. And a slider leg projecting from this, at least a part of the slider leg has a shape that engages with a guide portion provided in the case body member, and the shutter is the opening of the case body member. The upper and lower tongues for closing the part and the connecting piece for connecting the both, and the slider and the shutter are The back surface of the slider body and the inner surface of the coupling piece are combined and integrated, and when the slider leg is pushed from one side edge of the case body member and pushed in, the slider leg elastically deforms and enters the case body member. A disk cartridge characterized by being adapted to engage with the guide portion. 2. The disk cartridge according to claim 1, wherein the guide portions are provided on the left and right of the opening for accessing the reproducing head, and the slider legs are provided on both ends of the slider body. 3. The slider leg is composed of an upper leg piece and a lower leg piece facing each other with a gap, and at least one of them has a shape to engage with a guide portion provided on the case body member. The disk cartridge according to claim 1, wherein the disk cartridge is a disk cartridge. 4. A case main body member, which comprises an upper piece and a lower piece, has an opening for accessing a reproducing head, and one side surface of which is open so that a shutter member can be attached, and the opening. A disc cartridge comprising a shutter member comprising a shutter that can be opened and closed to close and a slider that guides the opening / closing operation of the shutter, and a guide portion that guides the movement of the slider along one side edge of the case body member. The slider, which is provided on both the upper and lower pieces, consists of a rod-shaped slider body and slider legs protruding from both ends of the slider body. The slider legs are opposed to each other with a gap. And a lower leg piece, and at least one of which has a shape that engages with the guide portion, and the shutter is an upper tongue piece that closes the opening portion. And a lower tongue piece and a connecting piece for connecting both of them, and the slider and the shutter are integrated with the slider main body by connecting the slider and the shutter to the slider body from one side edge side of the case body member. A disk cartridge characterized in that, when pushed in, the slider leg is elastically deformed to enter the case body member and engage with the guide portion. 5. A guide portion is provided on both the upper piece and the lower piece of the case body member, and the upper leg piece and the lower leg piece of the slider leg are shaped to engage with the guide portion. The disk cartridge according to claim 4, wherein 6. The guide according to claim 1, wherein the guide portion is a ridge or groove provided in the vicinity of one side edge of the upper piece or the lower piece in parallel with the side edge. Disk cartridge. 7. The disk cartridge according to claim 1, wherein the shutter member is an integrally molded product by injection molding. 8. The case main body member and the shutter are formed of a transparent synthetic resin.
The disk cartridge according to any one of 1.