JPH0586167U - Disk cartridge - Google Patents

Abstract

(57) [Summary] [Purpose] The hinge part of a disk cartridge consisting of an upper case and a lower case, which are integrally molded with the hinge part, is not conspicuous without a business trip from the product, improving the appearance of the case and supporting mass production. Improve the workability of the automatic assembly line. [Structure] Both ends of the hinge part 3 are respectively inside the outer edge of the case, and the notch 11 is provided at the end of the case facing the both ends, so that the plate thickness at the hinge part is inside the product. The entry hinge part does not travel, it has a good appearance and high commercial value, and it can be easily incorporated in an automatic assembly line, contributing to the improvement of production efficiency.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disc cartridge in which a disc-shaped medium such as a flexible disc or a hard disc is rotatably housed in a case.

[0002]

[Prior Art]

 Generally, a flexible disk or a hard disk as an information recording carrier is easily scratched and easily gets dusty or dusty, so that it is handled as a disk cartridge housed in a case and easily set in a recording / reproducing device. .. Conventionally, in this type of disc cartridge, an upper case and a lower case are separately formed, and a disc-shaped medium is housed inside to fuse the upper case and the lower case together.

[0003]

[Problems to be solved by the device]

 However, in this disc cartridge, since the upper and lower cases were fused together, if there was a slight misalignment in the seam, a step will occur at the outer periphery of the case, especially at the label area, and the appearance will look good. It deteriorates and reduces the product value, and since the upper and lower cases were temporarily assembled during the transportation process from the case molding to the assembly process, the production efficiency was poor, and the product could not be incorporated into an automatic assembly line for mass production. This is a problem because it is troublesome, the production cost is high, and the number of parts is large, which limits the cost reduction. The present invention is intended to eliminate these conventional drawbacks, and the label area of the case is assembled without a step, and the hinge part does not stand out inside the product without a business trip and has a good appearance. A high-value disc cartridge that has a high product value and can be easily installed in an automatic assembly line to be used as a disc cartridge, greatly reducing production costs and reducing costs by reducing the number of parts. It is intended to be provided.

[0004]

[Means for Solving the Problems]

 The present invention relates to a disk cartridge comprising a case in which an upper case and a lower case are integrally molded with a hinge part, wherein both ends of the hinge part are inside the outer edge of the case, and a case side end facing the both ends. The disc cartridge is characterized in that a notch is provided in the disc cartridge.

[0005]

[Action]

 The upper case 1 and the lower case 2 of the disk cartridge are integrally formed by a hinge portion 3 and molded, and the notches at both ends of the hinge portion 3 are formed by a mold having a step. The plate thickness of the part enters the inside of the product and the hinge part 3 in the product is not conspicuous without a business trip, and the strength of the movable side mold is also increased by gradually changing the parting line of the molding mold. It is also possible to fold the hinges, and stack the upper and lower cases 1 and 2 into a fusion structure without temporarily assembling them in the assembly process, and the productivity can be greatly improved.

[0006]

【Example】

An embodiment of the present invention will be described with reference to FIGS. 1 to 7. In a disk cartridge that rotatably stores a disk-shaped medium 6 in a case composed of an upper case 1 and a lower case 2, an upper case 1 and a lower case 2 will be described. A hinge part 3 is provided in the label area part of the rear edge of and the upper case 1 and the lower case 2 are integrally connected, and the outer peripheral surface part 3 ₁ of the hinge part 3 is formed flat so that no protrusions are formed. In this way, both ends of the hinge portion 3 are located inside the outer edge of the case, and the notch portion 11 is provided at the end of the case facing the both ends to form a disk cartridge.

As the hinge portion 3, a pair of V grooves 4 and 4 are integrally formed on the inner wall surface portion of the label area portion 5 of the upper and lower cases 1 and 2, and the upper case 1 and the lower case 2 are side wall portions. have been formed into a U-shaped section becomes continuously provided have been integrally formed, the outer peripheral side surface 3 ₁ of the label area 5 becomes flat, yet to conveniently Toriatsukaieru so without also temporarily assembling the transport to the assembly process Is becoming The V-grooves 4 are arranged parallel to the edges of the label area 5 and are provided separately at the inner corners of the upper and lower case side walls. Although it is formed for easy folding and polymerization, a pair of V-grooves 4 or one V-groove 4 may be provided in a position close to each other and connected as needed.

Then, both ends of the hinge portion 3 are molded by using a mold 13 in which a cutting line 11 and a stepped portion 12 are provided on a parting line of a mold for molding both ends of the hinge portion, and which is changed. It is effective that the notch 11 has a shape in which the relationship between the height l and the width t is t> 0.5l, since the strength of the movable die is increased.

In the figure, numeral 7 is a window for inserting a recording / reproducing head, and numeral 8 is a shutter which can be opened and closed. Reference numeral 9 denotes a sliding concave surface, which includes a shutter slide area in which the shutter is fitted. Reference numeral 10 is a disc hub fitting hole, and 17 is a lifter.

In the embodiment shown in FIG. 8, both ends of the hinge portion 3 end at positions outside the partition wall 15 of the identification hole 14 formed in the case, so that the media accommodating portion 16 is inserted from the gap of the notch portion 11. This is to prevent dust and dirt from entering.

[0011]

[Effect of the device]

 According to the present invention, both ends of the hinge portion are located inside the outer edge of the case, and the notch portion is provided at the end of the case opposite to the both edges. Since the product does not have to travel, the hinge part of the product is not conspicuous and the appearance is good and the product value is high, and by changing the parting line of the molding die in stages, the strength of the movable side die for molding It is easy to manufacture and easy to assemble, and it can be easily incorporated into an automatic assembly line to make a disc cartridge, which can significantly improve production efficiency and reduce the cost by reducing the number of parts, and the upper and lower cases. It has practical effects in that it can be shaped and processed easily, and assembly work can be done with higher accuracy and mass production is easier.

[Brief description of drawings]

FIG. 1 is a developed plan view showing an embodiment of the present invention.

FIG. 2 is an enlarged plan view showing an end portion of a hinge portion of FIG.

FIG. 3 is an enlarged vertical sectional view taken along the line AA of FIG.

4 is a perspective view of a part of the assembled state of the example of FIG.

FIG. 5 is an enlarged perspective view showing the hinge portion of FIG. 4 in a developed state.

FIG. 6 is a perspective view of the embodiment of FIG. 1 in use.

FIG. 7 is a perspective view of a part of the mold for molding the end of the hinge portion in the example of FIG.

FIG. 8 is a developed plan view of another embodiment of the present invention.

[Explanation of symbols]

 1 Upper case 2 Lower case 3 Hinge part 4 V groove 5 Label area part 6 Disc medium 8 Shutter 9 Shutter slide area 11 Cut part 12 Step part 13 Mold 14 Identification hole 15 Partition wall 16 Media storage part

Claims (4)

[Scope of utility model registration request] 1. A disk cartridge comprising a case in which an upper case and a lower case are integrally molded with a hinge part, wherein both ends of the hinge part are respectively located inside an outer edge of the case, and a case side end facing the both ends. A disc cartridge having a notch formed in the disc cartridge. 2. The hinge portion is provided in the label areas of the upper case and the lower case, and a step is provided from a notch portion in a parting line of a die for molding both ends of the hinge portion to change the hinge line. The disk cartridge according to claim 1, 3. The disk cartridge according to claim 1, wherein the notch has a shape such that the relationship between the height l and the width t is t> 0.5l. 4. The disk cartridge according to claim 1, wherein both ends of the hinge portion end at positions outside the partition wall of the identification hole formed in the case.