JPH0596958U - cartridge - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the assemblability of the shutter to the case in the cartridge, and to make the operation of the shutter smooth to prevent the case from being scraped or damaged. [Structure] The shutter 4 is provided with a sliding guide 10 having a U-shaped cross-section, and one end portion of one sliding guide piece is provided with a bent portion 10 ₂ into a groove 12 for sliding guide, and the other end. The sliding guide piece is projectingly provided inward from the side surface of the case so as to sandwich the case, and the tip end edge of the sliding guide is expanded outwardly. Since the tip edge 10 ₃ of the is expanded outward,
The shutter can be inserted easily and can be installed without opening the shutter wide. Moreover, when the sliding guide of the shutter is inserted into the sliding groove of the case and slides, the tip of the sliding guide contacts the case. Without this, the movement of the shutter is smooth and the reliability is significantly improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cartridge of an audio or video cassette or a digital compact cassette in which a flexible disk, a hard disk, in particular, an optical disk or the like is rotatably housed in a case or a tape-shaped medium is housed.

[0002]

[Prior Art]

 Generally, an information medium such as a magnetic disk, an optical disk, a magneto-optical disk, or a tape is used as a cartridge housed in a case and set in a recording / reproducing device. Conventional media of this kind are not only susceptible to dust and dirt during handling and are especially vulnerable to damage, but also have a large effect due to temperature changes.Therefore, there are openings such as head insertion holes and drive shaft insertion holes in the case. It is known to have a shutter that opens and closes when the disc is used or not used.

[0003]

[Problems to be solved by the device]

 In conventional cartridges that have a shutter that opens and closes the opening formed in the case, the sliding guide is inserted into the slide groove, so the shutter is inserted into the slide groove from the tip of the shutter when the shutter is installed in the case. However, since the tip of the sliding guide is straight, the shutter had to be opened wider to insert it, and the assembling work was complicated, and the production efficiency was poor and there was a problem in assembly. The present invention is intended to eliminate these drawbacks of the prior art, significantly improving the assemblability, and improving the slidability without the tip of the sliding guide of the shutter being caught in the case or scraping the case. The aim is to make the cartridge cheaper to manufacture, easier to operate, smoother to operate, safer and more reliable, and easier to manufacture.

[0004]

[Means for Solving the Problems]

 The present invention is a cartridge in which a medium is housed in a case having an opening into which a recording / reproducing head, a drive shaft, etc. can be inserted, and a shutter for opening and closing the opening is slidably provided. A sliding guide with a U-shaped cross section is provided. One sliding guide piece has a bent part to the groove for sliding guide on the edge, and the other sliding guide piece holds the case. Thus, the cartridge is characterized in that it is provided so as to project inward from the side surface of the case, and the tip edge of the sliding guide is expanded outward.

[0005]

[Action]

 When the shutter is installed in the case, the front edge of the shutter is expanded outward, so it is easy to insert the shutter, and the shutter can be installed without opening it wide. When it is slid into the slide groove of the case and slides, the tip of the sliding guide does not come into contact with the case, the movement of the shutter is smooth, and the abrasion phenomenon does not occur and the reliability is significantly improved. Used.

[0006]

【Example】

An embodiment of the present invention will be described with reference to an example of the disk cartridge of FIGS. 1 to 4. A case 1 in which a disk-shaped medium 2 as an information medium is housed in a case 1 and an opening 3 such as a head insertion hole is formed. And a shutter 4 having a substantially U-shaped cross section for opening and closing the opening 3 slidably. The case 1 is composed of an upper case and a lower case. Is provided with a sliding guide 10 having a U-shaped cross section, and the sliding guide 10 is provided with a slide groove 11 which is inserted into the case from the side surface portion of the case 1, and the sliding guide 10 has the edge of one sliding guide piece, the bent portion 10 ₂ of the concave groove 12 of the sliding guide and the other sliding guide piece enters the interior of the case side so as to sandwich the case In the direction of the The leading edge 10 ₃ use the guide pieces are flared outwardly.

In this case, the slide groove 11 is disposed between the joint surfaces of the upper and lower cases and has a gap into which the bent tip of the sliding guide 10 of the shutter 4 is fitted. The sliding guides 10 of the shutter 4 are provided so as to face each other at positions projecting outward from both ends of the shutter plate of the shutter 4, and are fitted and supported so as to sandwich the case 1 from both upper and lower surfaces. There is. Further, the sliding guide plate having the front edge 10 ₃ of the sliding guide 10 is bent and inserted into the slide groove 11 formed at the joint surface position of the upper and lower cases, and both ends of the shutter plate are It is connected to the position.

In the figure, reference numeral 5 denotes a shutter area for sliding the shutter 4 having a U-shaped cross section, which is a concave surface formed on the outer surface of the case. Reference numeral 6 is a disk hub, 7 is a hub fitting hole, 8 is an erasure preventing plug, 9 is a shutter lock, 14 is a medium storage portion, 15 is a label area, and 16 is a visible portion. In addition, the case 1 is selected and configured as a shell of various cartridge forms for accommodating a disk-shaped medium such as a floppy disk, a compact disk, a video disk, an optical disk or a tape-shaped medium such as an audio, video or digital compact cassette. It

The shutter 4 is a metal or synthetic resin shutter, and has a chamfered portion formed on the case side with a root portion 10 ₁ of a sliding guide 10 projecting inward from the case side surface. 13 or a reinforcing portion that corresponds to or fits in the recess is provided to enhance the strength of the shutter and improve the reliability.

[0010]

[Effect of the device]

In the embodiment of FIG. 5, the upper case of the case 1 has no window portion, that is, the case 1 is applied to a shell having an opening 3 only on one side, and the shutter 4 is a shutter plate. And a guide 10 for sliding the abutting piece which is bent in a U-shaped cross-section in opposition thereto, and is provided with bent portions 10 ₂ , 10 ₂ for concave groove and an expanded leading edge 10 ₃ for sliding. The case 1 is configured to be sandwiched between the guide 10 and one shutter plate 4 ₁ .

The present invention provides a cartridge in which a medium is housed in a case having an opening into which a recording / reproducing head, a drive shaft, etc. can be inserted, and a shutter for opening and closing the opening is slidably provided. The shutter is provided with a sliding guide having a U-shaped cross section. One sliding guide piece has a bent portion at the end edge of the sliding guide piece, and the other sliding guide piece has a case. When the shutter is assembled into the case, the front edge of the shutter is placed outside when the shutter is sandwiched so that it protrudes inward from the side of the case and the front edge of the sliding guide is expanded outward. The shutter is easy to insert because it is expanded in the direction, and it can be installed without opening the shutter wide. Moreover, when the sliding guide of the shutter is inserted into the slide groove of the case and slides, guide The tip of the shutter does not come into contact with the case, the shutter moves smoothly, and the shutter can be opened and closed safely without causing malfunction of the shutter.In addition, when the shutter is opened or closed, the case may be rubbed or scraped, or the case may be damaged. Since there is little generation of shavings, it is possible to significantly improve reliability without causing problems such as dropouts in recording and reproduction, and to improve quality and durability, and easy to manufacture.・ Practical effects such as low cost.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the example of FIG. 1 in a separated state.

FIG. 3 is an enlarged perspective view of the shutter of the example of FIG.

FIG. 4 is an enlarged vertical sectional view taken along the line AA in FIG.

FIG. 5 is a perspective view showing a state in which a shutter according to another embodiment of the present invention is separated.

6 is an enlarged vertical sectional view taken along line BB of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 case 2 disk medium 3 opening 4 shutter 5 shutter area 10 sliding guide 10 ₁ root part 10 ₂ bent part for concave groove 10 ₃ tip edge 11 slide groove 12 concave groove 13 chamfered part

Claims (3)

[Scope of utility model registration request] 1. A cartridge in which a medium is housed in a case having an opening into which a recording / reproducing head, a drive shaft and the like can be inserted, and a shutter for opening and closing the opening is slidably provided, A sliding guide with a U-shaped cross-section is provided, and one end of the sliding guide piece holds a bent portion into a groove for sliding guide, and the other sliding guide piece holds the case. The cartridge is characterized in that it is provided so as to project inward from the side surface of the case and the tip edge of the sliding guide is expanded outward. 2. The sliding guides are respectively provided at positions projecting outward from both ends of the shutter plate, and are bent at a joint surface position of the upper and lower cases.
The described cartridge. 3. The cartridge according to claim 1, wherein the shutter plate is formed on only one side, and sliding abutting pieces bent in a U-shaped cross section are arranged opposite to each other.