JP3118062B2 - cartridge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge containing an information medium such as a tape-shaped or disk-shaped medium or a medium such as a cleaning tape in a case.

[0002]

2. Description of the Related Art Generally, digital data storage devices,
In the case of tape cassettes and digital compact cassettes (DCC) used for audio or video equipment, etc., the case is protected by dust and dust in handling, and the opening formed in the case is protected by the case. For example, a type in which a shutter insertion hole, a drive shaft insertion hole, a reference pin insertion hole, a head insertion hole, and the like are opened and closed by a shutter is adopted. The shutter is opened when used, and the shutter is closed when not used. I have. That is, as shown in FIGS. 10 and 11, the shutter used in the conventional cartridge includes a cover d having a U-shaped cross section that is bent over the front end surface of the case e, and is attached by a spring a. Each opening formed in the case e by being urged, for example, a pickup insertion hole, a drive shaft insertion hole, and other openings are covered and closed when not in use, and are slidably provided in a slide area of the case so that they can be opened when in use. Have been.

[0003]

In this conventional cartridge, the rib b of the position regulating piece in the direction orthogonal to the shutter sliding direction of the shutter d is provided near the substantially U-shaped bent portion of the shutter. Therefore, when assembling the shutter, when the shutter d is inserted into the case e, the rib b comes into contact with the case surface to generate shavings. On the other hand, in order to prevent the rib b from contacting the case surface, Since the shutter d needs to be expanded in the direction in which the substantially U-shaped opening opens, and the rib b needs to be greatly deformed so as not to reach the case when inserted into the case e, the shutter d can be smoothly inserted. In addition, there is a drawback that the deformation of the shutter d is not recovered even after the insertion is completed and the function of the shutter itself is impaired.
Therefore, the shape of the shutter is complicated, the structure of the press and the molding die is also complicated, the accuracy and durability are lacking, and the depth of the groove c in the shutter sliding direction is reduced. Since the groove c cannot be sufficiently secured, the guide function of the groove c is insufficient. On the other hand, if the depth of the groove is sufficiently secured, the case thickness at that portion becomes thinner and a short shot occurs at the time of case molding, resulting in a strong However, there was a problem in that the case became unreliable and durable. SUMMARY OF THE INVENTION The present invention is intended to eliminate these conventional drawbacks, remarkably improve the shutter assemblability and the sliding opening and closing operation of the shutter, increase the productivity, and help prevent the case from being scraped when the shutter is assembled and inserted. It is another object of the present invention to provide a cartridge which can greatly improve the reliability of accuracy and durability and can simplify the structure of a case, a mold and a shutter.

[0004]

According to the present invention, a slide area of a shutter having a substantially U-shaped cross section is formed in a case for accommodating an information medium therein, and the shutter is slid on the slide area by urging the shutter with a spring. A cartridge provided freely and configured to open and close an opening in a case, wherein a guide for a shutter presser provided integrally with the case at a leading edge of the shutter so as to regulate a position in a thickness direction of the case. A tongue piece engaged with the piece and a guide piece fitted in a groove provided along the shutter sliding direction in the case so as to regulate a position in a direction perpendicular to the shutter sliding direction are provided. One of the tongue piece and the guide piece is arranged at the center of the leading edge of the shutter, and the other is arranged at both sides thereof.

[0005]

The shutter assembled to the case has a tongue piece and a guide piece at one end edge of the shutter that regulate the position in both the thickness direction of the case and the direction perpendicular to the shutter sliding direction. By disposing the other part at the center of the leading edge and the other part on both sides, the shutter can be assembled smoothly and easily to the case without significantly deforming the shutter when inserting and inserting the shutter. In addition to greatly improving the sliding operation of the incorporated shutter, the structure of the shutter, the case, and the mold can be simplified, and the accuracy and durability can be improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 6 showing an example of a DCC type cartridge. A cartridge in which a slide area 4 of a U-shaped shutter 3 is formed, and the shutter 3 is slidably provided in the slide area 4 by urging the shutter 3 with a spring 5 to open and close an opening in the case 2. At
The leading edge 3 ₁ of the shutter 3, the tongue 8 to be fitted Kakari支the guide piece 12 of the shutter retainer provided integrally to the casing 2 so as to regulate the position of the thickness direction of the case 2,
The case 2 is provided with a guide piece 9 which is fitted into a concave groove 10 provided along the sliding direction of the shutter 3 so as to regulate a position in a direction orthogonal to the shutter sliding direction.
One of the guide piece 9 to the central portion of the leading edge 3 ₁ of the shutter 3, also some other as the cartridge for recording and reproduction separated disposed on both sides thereof.

A guide piece provided in the case 2 for suppressing the shutter is provided for regulating the position of the shutter.
The tongue piece 8 is engaged with the guide piece 12 and the guide piece 9 is fitted into the concave groove 10 provided in the case 2 along the sliding direction of the shutter. as shown in, the guide piece 9 is provided at the center portion of the leading edge 3 ₁ of the shutter 3 by disposing tongue 8,8 on both sides, guide one end edge turned-back portion guide piece case (FIG. 3) 2 Care has been taken not to scrape the case surface even if it touches the case.

The slide area 4 into which the shutter 3 is fitted includes a groove 1 into which a shutter guide piece 9 is fitted.
An inclined surface 11 is provided along the groove 10 so as to narrow the concave portion of the slide area with respect to the direction of inserting the shutter into the groove 0, and the thickness of the case is extremely reduced by forming the inclined surface 11. Since the depth of the concave groove 10 can be sufficiently ensured without reducing the thickness, the case is given a strength, which also helps to prevent the guide piece 9 from coming off after being inserted into the concave groove 10.

In this case, the shutter 3 is made of a synthetic resin or a thin metal plate and has a substantially U-shaped cross section and is slidably fitted in the slide area 4 of the case 2. and each other with the guide groove 13 having a leading edge 3 ₁ serving as the shutter free end of the case 2
The shutter 3 is slid under the lower surface of the guide piece 12 for suppressing the shutter, and can be engaged therewith. The shutter 3 is biased in one direction by a spring 5 housed in the case 2 so as to be in the old position. You can move to.

[0010] The case 2 uses a box composed of an upper case and a lower case, and has a tape-shaped information medium 1 in the case.
A pair of hubs 14 wound around the hub are rotatably provided on the peripheral wall portion for hub fitting, and a tape guide roller 15 disposed on a tape running path running between the hubs 14 and 14 is provided, and a front outer wall is provided. A front opening and a central opening are formed at intervals on the front outer wall.
9, 20 are formed.

In FIG. 1, reference numeral 6 denotes a spring locking projection provided on the shutter 3. Reference numeral 7 denotes a slide guide groove for fitting the projection 6, which is provided on the case 3. Reference numerals 22 and 23 denote fitting holes, reference numeral 24 denotes a drive shaft hole, and reference numerals 27 and 28 denote window holes.

In the second embodiment shown in FIG. 7, the arrangement of the tongue piece 8 and the guide piece 9 for regulating the position of the shutter 3 is opposite to that of the example shown in FIG. the tongue 8 to be fitted is provided in the central portion of the leading edge 3 ₁ of the shutter 3, the guide piece 9 bent Ori is fitted into groove 10 on both sides,
In this case, as shown in FIGS. 8 and 9, the grooves 10, the guide pieces 12, and the guide grooves 13 provided in the case 2 are also formed correspondingly. Is considered. Note the both corners of the leading edge 3 ₁ of the shutter 3 preferably avoided the interference between the case 2 at both ends of the shutter sliding direction provided a notch 29. (FIG. 7)

[0013]

According to the present invention, there is provided a cartridge having a configuration in which a shutter is slidably provided on a slide area of a case by a spring to open and close an opening in the case.
At the tip of the shutter, a tongue piece which is engaged with a guide piece of a shutter retainer provided integrally with the case so as to regulate the position in the thickness direction of the case, and a position in a direction orthogonal to the shutter sliding direction. A guide piece fitted into a groove provided along the sliding direction of the shutter is provided in the case so as to regulate, and one of the tongue piece and the guide piece is provided at the center of the leading edge of the shutter. In addition, since the other is separately disposed on both sides thereof, the shutter can be easily assembled to the case. That is, the tongue piece and the guide piece for regulating the position in the direction orthogonal to the sliding direction of the shutter are substantially similar to the shutter. Separated at the leading edge away from the U-shaped bent portion, the shutter can be smoothly and easily assembled to the case without significantly deforming the shutter when the shutter is inserted and inserted. It does not come into contact with the case surface when inserted into the case, greatly improving workability without generating shavings, simplifying the shape of the shutter, facilitating press and molding work, and simplifying the mold structure, Accuracy and durability are improved, and the depth of the groove in the shutter sliding direction can be sufficiently secured without reducing the thickness of the case. Even if the guide groove is provided, the case does not hinder the strength, and the sliding opening and closing operation of the shutter can be performed smoothly and smoothly, which helps to prevent shaving, and is used safely without adversely affecting the information medium. Reliability can be significantly improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment of FIG.

FIG. 3 is an enlarged vertical sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged vertical sectional view taken along line BB of FIG. 2;

FIG. 5 is an enlarged perspective view of a part of a shutter tip portion in the embodiment of FIG. 1;

FIG. 6 is an enlarged vertical sectional view showing a state in which the shutter in the embodiment of FIG. 1 is fitted and assembled in a case.

FIG. 7 is an enlarged perspective view of a part of another embodiment of the shutter tip.

FIG. 8 is an overall perspective view using the shutter of the embodiment of FIG. 7;

FIG. 9 is a plan view of the embodiment of FIG.

FIG. 10 is a perspective view of a conventional example.

11 is an enlarged vertical sectional view showing a state in which the shutter in the example of FIG. 10 is fitted into a case and assembled.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Information medium 2 Case 3 Shutter 3 ₁ Leading edge 4 Slide area 5 Spring 6 Spring locking projection 7 Guide groove 8 Tongue piece 9 Guide piece 10 Groove 11 Slope 12 Guide piece 13 Guide groove 14 Hub

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-342802 (JP, A) JP-A 4-103376 (JP, U) JP-A 63-161469 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) G11B 23/00

Claims (3)

(57) [Claims] 1. A data medium 1 to form a slide area 4 of a substantially U-shaped cross section of the shutter 3 to the case 2 for accommodating therein slidably shutter 3 in the slide area 4 biased by a spring 5 in preparation for, a structure as the cartridge for opening and closing an opening in the casing 2, ahead of the shutter 3
The edge 3 _1, to regulate the position of the thickness direction of the case 2
Guide for the shutter presser provided integrally with the case 2
The tongue piece 8 to be engaged with the piece 12 and the sliding direction of the shutter
Shut the case 2 so as to regulate the position in the orthogonal direction.
Into the groove 10 provided along the sliding direction of the
One of the tongue piece 8 and the guide piece 9
As to the central portion of the leading edge 3 ₁ of the shutter 3 and the other
A cartridge characterized by being separated on both sides . 2. The slide area 4 in which the shutter 3 is fitted is inclined so as to reduce the height of the recess in the slide area 4 with respect to the direction of inserting the shutter into the concave groove 10 in which the guide piece 9 is fitted. The cartridge according to claim 1, wherein the inclined surface ( 11 ) is provided along the groove ( 10 ). 3. The guide piece 9 of the shutter 3 has an edge thereof.
3. The cartridge according to claim 1, wherein the cartridge is formed as a folded portion .