JP2001312881A - Cartridge housing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent erroneous insertion of a cartridge other than an original cartridge by a simple structure. SOLUTION: This cartridge housing device is provided with a holder 3 for inserting a cartridge 6 housing a disk 60 in a state where one end is pivotally supported 32 on a chassis 1, and it is inclined upward with respect to the chassis 1, and a regulation shaft 5 is provided on the chassis 1 to fit in a positioning hole 61 formed in the front end part of the cartridge 6 and having an opening 62 in its front. The tip of the regulation shaft 5 is located lower than the transfer path L of the upper end edge of the opening 62 and upper than the transfer path M of the lower surface of the cartridge 6 when the cartridge 6 is inserted into the holder 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for accommodating a cartridge containing a disk as a recording medium, and more particularly to a signal recording or reproducing apparatus.

[0002]

2. Description of the Related Art Hitherto, a type in which a disk as a recording medium is housed in a cartridge has been proposed. FIG.
Is a plan view of a cartridge (6) proposed by the applicant before (see Japanese Patent Application No. 11-195182). Although this application has not been published, the specifications and configuration of the cartridge (6) have been published. This is used for a super-resolution type recording / reproducing apparatus. The disc (60) is rotatably held in a cartridge (6), and the upper surface of the cartridge (6) switches between exposure and closing of the disc (60). A shutter (63) is slidably provided. The cartridge (6) is provided with a positioning hole (61) having an open lower surface, an erroneous insertion prevention hole (64), and a fitting hole (65). FIG. 3 is a side view of an apparatus which stores the cartridge (6) and records a signal on the disk (60) or reproduces a signal from the disk (60). At one end on the chassis (1) on which the turntable (7) is mounted,
The base end of the holder (3) into which (6) is inserted is pivoted (32). The insertion direction of the cartridge (6) matches the sliding direction of the shutter (63). In the following description, the cartridge
The direction in which (6) is inserted is referred to as front, and the direction in which it is ejected is referred to as rear.

At the front and rear ends of the chassis (5), there are regulating shafts which fit into the positioning holes (61) and the fitting holes (65) of the cartridge (6).
(5) (5) is erected. Each regulating shaft (5) is configured by projecting a conical guide projection (51) from the upper surface of a cylindrical receiving shaft (50) that receives the lower surface of the cartridge (6). The positioning hole (61) and the mis-insertion prevention hole (64) extend back and forth,
The width of (61) is slightly smaller than the diameter of the lower end of the guide projection (51).
The positioning hole (61) of the cartridge (6) is partially open at the front.
(62), and the cartridge (6) is inserted into the holder (3) which is tilted upward about the pivot (32). When the cartridge (6) is completely inserted into the holder (3), the positioning holes (6)
1) fits into the guide projection (51). This allows the cartridge
The left and right play of (6) is regulated. When the holder (3) is rotated downward, the cartridge (6) is placed on the upper surface of the receiving shaft (50). The disc (60) is placed on the turntable (7), and signals are recorded or reproduced.

FIG. 5 is a plan view of the holder (3) which has been lowered, and the pivots (32) (32) of the holder (3) are shown facing left and right.
Also, for convenience of explanation, the top plate of the holder (3) is omitted. FIG.
FIG. 6 is a front view of the holder (3) of FIG.
The lower ends of both sides of the holder (3) are bent inward and the receiving plate (3
0) and (30) are formed, and an end of the right receiving plate (30) is cut and raised to provide an erroneous insertion preventing projection (31). Left support plate (3
A through hole (33) is opened in (0), and the regulating shaft (5) at the rear end of the chassis (1) fits in the through hole (33). When inserting the cartridge (6) into the holder (3), the erroneous insertion prevention projection (31) fits into the erroneous insertion prevention hole (64). If the cartridge (6) is inserted upside down, the erroneous insertion prevention projection (31) does not fit in the erroneous insertion prevention hole (64).
Cannot be inserted in (3). This indicates that the user has erroneously inserted the cartridge (6).

[0005]

Recently, a cartridge (6) containing a disk having the same recording / reproducing performance as the disk in the cartridge (see FIG. 4) proposed by the applicant has been proposed.
A mini-cartridge (8) having a small front and rear size has been proposed. The mini-cartridge (8) is provided with a stepped portion (81) that is recessed rearward from the center of the front end to the right end, as shown by the dashed line in FIG. In addition, positioning holes (61)
Is open at the bottom, but closed at the front end. The disk in this mini cartridge (8) is
The mini-cartridge (8) should not be inserted into the holder (3) because the recording and reproduction specifications are different from those of the disc (60). However, when the mini-cartridge (8) is erroneously inserted into the holder (3) of the conventional device, the step (81) does not reach the erroneous insertion prevention projection (31), and the mini-cartridge (8) is inserted into the holder (3). ). In this case,
Despite having (31), the original cartridge
A problem occurs in which a mini-cartridge (8) other than (6) is inserted. In view of this point, the applicant has conceived of preventing the mini-cartridge (8) from being erroneously inserted into the regulating shaft (5) for determining the position of the cartridge (6) on the chassis (1).
That is, since the step portion of the mini-cartridge (8) is recessed backward, the mini-cartridge does not touch the erroneous insertion prevention projection (31) located at the right end of the holder (3), but the left end of the holder (3). Corresponding to the control shaft provided on the chassis (1)
Because it touches (5), the mini-cartridge is
(8) Incorrect insertion is prevented. An object of the present invention is to prevent a cartridge other than the original cartridge from being erroneously inserted with a simple configuration.

[0006]

On the chassis (1), there is provided a regulating shaft (5) formed at the front end of the cartridge (6) and fitted in a positioning hole (61) having an opening (62) in the front surface. ing. The tip of the regulating shaft (5) is located below the transition path L of the upper edge of the opening (62) when the cartridge (6) is inserted into the holder (3), and the cartridge (6) Is located above the transition path M on the lower surface of.

[0007]

[Operation and Effect] When the cartridge (6) is inserted into the holder (3) inclined upward, the front opening (62) of the positioning hole (61) is formed.
Faces the regulating shaft (5). The tip of the regulating shaft (5) has an opening
Since the upper end edge of (62) is located below the transition path L, the regulating shaft (5) fits into the positioning hole (61) without obstructing the insertion of the cartridge (6). However, when the mini-cartridge (8) is erroneously inserted into the holder (3) inclined upward, the positioning hole (61) of the mini-cartridge (8) is closed at the front end and the tip of the regulating shaft (5). Is located above the transition path M on the lower surface of the cartridge, the insertion of the mini-cartridge (8) is prevented by the regulating shaft (5). Thus, erroneous insertion of the mini cartridge (8) can be effectively prevented only by setting the height of the regulating shaft (5).

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Overall Overview) An example of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of the disk recording or reproducing apparatus, with the holder (3) raised. holder
The shape of (3) is the same as the conventional one. Also cartridge
(6) is cut away along the plane including the line FF in FIG. As in the prior art, the disc (60) is housed in the cartridge (6), and a positioning hole (61) having an open lower surface and an open front surface is formed in the front end of the cartridge (6). At the rear end of the cartridge (6), a fitting hole (65) with an open lower surface
Has been established. Position the positioning holes (6
1) and a regulating shaft (5) (5) fitted in the fitting hole (65) are provided,
Each regulating shaft (5) is formed by projecting a conical guide projection (51) from the upper surface of the receiving shaft (50) that receives the lower surface of the cartridge (6), as in the prior art. The width of the positioning hole (61) is slightly smaller than the diameter of the lower end of the guide projection (51), whereby the right and left play of the cartridge (6) fitted in the guide projection (51) is regulated.

This embodiment is characterized in that the mini-cartridge (8) is prevented from being erroneously inserted by the regulating shaft (5). Specifically, the tip of the guide projection (51) of the regulating shaft (5) is provided with an opening (61) provided on the front surface of the positioning hole (61) when the cartridge (6) is inserted into the holder (3). 62) It is located below the transition path L at the upper edge. The tip of the guide projection (51) is located above the transition path M on the lower surface of the cartridge (6) when the cartridge (6) is inserted into the holder (3). Thus, when the original cartridge (6) or the mini-cartridge (8) is inserted into the holder (3), only the mini-cartridge (8) is prevented from being inserted as described below.

When the original cartridge is inserted into the holder
When the cartridge (6) is inserted into the holder (3) inclined upward, the front opening (62) of the positioning hole (61) faces the regulating shaft (5). Since the tip of the regulating shaft (5) is located below the transition path L at the upper edge of the opening (62), the regulating shaft (5) can be positioned without obstructing the insertion of the cartridge (6). hole
Fits inside (61). If the mini-cartridge is inserted into the holder by mistake, the mini-cartridge is
If (8) is incorrectly inserted, the front end of the positioning hole (61) of the mini-cartridge (8) is closed, and the tip of the regulating shaft (5) is located above the transition path M on the lower surface of the cartridge. Insertion of the mini cartridge (8)
Hindered by (5). Thus, erroneous insertion of the mini cartridge (8) can be effectively prevented only by setting the height of the regulating shaft (5).

The thickness of the cartridge (6) is several millimeters, and this cartridge (6) is called a standard cartridge. The standard cartridge (6) is stored in the holder (3) with little vertical play. However, apart from the mini-cartridge (8), there is a possibility that a thin cartridge (not shown) having a thickness of about 1 mm thinner than that of the standard cartridge (6) and having substantially the same outer dimensions will appear on the market. Such a thin cartridge should not be originally inserted into the holder (3), but since the thickness is thinner than the standard cartridge (6), the thin cartridge can be stored in the holder (3).
In order to prevent such a thin cartridge from being inserted into the holder (3), in this example, as shown in FIG. 1, from the tip of the regulating shaft (5) to the back of the top plate of the holder (3). Is formed smaller than the thickness of the thin cartridge. As a result, even if the thin cartridge is not inserted into the holder (3), the thin cartridge is caught on the regulating shaft (5) and is prevented from being inserted.

In order to make the shortest distance E from the tip of the regulating shaft (5) to the back surface of the top plate of the holder (3) smaller than the thickness of the thin cartridge, the regulating shaft (5) is formed at the following height. Is done. FIG. 2 shows that the cartridge (6) is a receiving shaft of the regulating shaft (5).
(50) It is a side view which shows the state mounted on (50). Regulation axis
Since (5) is accommodated in the positioning hole (61), the height C of the positioning hole (61) is higher than the height of the guide projection (51) of the regulating shaft (5). The height of the guide projection (51) is higher than the height A from the lower surface of the cartridge (6) to the upper edge of the front opening (62) of the positioning hole (61).

In the apparatus of this embodiment, the cartridge (6) is formed by the erroneous insertion preventing projection (31) of the regulating shaft (5) and the holder (3).
Erroneous insertion, and the insertion of the mini cartridge (8) and the thin cartridge can be prevented. That is, erroneous insertion of three types of cartridges can be effectively prevented with a simple configuration. In the above description, the insertion of the mini-cartridge (8) and the thin cartridge can be prevented.

The description of the above embodiments is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the appended claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

FIG. 1 is a side view of a disk recording or reproducing apparatus.

FIG. 2 is a side view showing a state where the cartridge is mounted on a receiving shaft of a regulating shaft.

FIG. 3 is a side view of a conventional disk recording or reproducing apparatus.

FIG. 4 is a plan view of a cartridge previously proposed by the applicant.

FIG. 5 is a plan view of the holder.

FIG. 6 is a front view of FIG. 5 viewed from a direction B.

FIG. 7 is a plan view showing a positional relationship between the mini cartridge and the holder.

[Explanation of symbols]

 (1) Chassis (3) Holder (5) Control shaft (6) Cartridge (32) Pivot (60) Disk (61) Positioning hole (62) Opening

Claims (2)

[Claims] An end is pivotally supported (32) to the chassis (1),
A holder into which a cartridge (6) containing a disk (60) is inserted while being tilted upward with respect to the chassis (1).
(3) a cartridge housing provided on the chassis (1) with a regulating shaft (5) formed at the front end of the cartridge (6) and fitted in a positioning hole (61) having an opening (62) in the front surface; In the apparatus, the tip of the regulating shaft (5) is located below the transition path L of the upper edge of the opening (62) when the cartridge (6) is inserted into the holder (3), and A cartridge storage device, which is located above a transition path M on the lower surface of the cartridge (6). 2. A standard cartridge (6) housed in the holder (3) with little vertical play, and a thinner and thinner than the standard cartridge (6), are inserted with sufficient margin in the vertical direction. The thin cartridge is insertable, and the shortest distance E from the tip of the regulating shaft (5) to the top surface of the holder (3) is smaller than the thickness of the thin cartridge.
A cartridge storage device according to claim 1.