JPH0793944A - Cassette cartridge - Google Patents

Abstract

PURPOSE:To easily pull out a cassette cartridge when a projection for preventing an erroneous insertion is erroneously inserted into a cassette holder, by forming a tapered surface at a position of a hole to detect a tape end where the hole is faced to a bottom face of the cassette cartridge. CONSTITUTION:A taper is provided at a part of a hole 10 formed at a bottom face of a cassette cartridge 100 and faced to a surface 8. A light emitting body for detecting a tape end is inserted through the hole 10. When a projection of a cassette holder enters the hole 10 over an end 12 of a groove 9, if the cassette cartridge is to be taken out in this state, the projection climbs a surface of the taper of the hole 10 to be smoothly taken out and inserted into the groove 9. Accordingly, even women the cassette cartridge is erroneously inserted into the cassette holder, the cartridge can be easily taken outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette cartridge of a recording / reproducing apparatus such as a VTR or DAT, and more particularly to a cassette cartridge in which a light emitting body is inserted into a hole provided on a temporary surface of the cassette cartridge for detecting the end of the tape. , Even if the light emitter is easy to insert into the hole and the cassette cartridge is inserted and the protrusion provided on the cassette holder to prevent insertion is inserted into the hole, pull out the cassette cartridge from the cassette holder. It relates to a cassette cartridge suitable for facilitating.

[0002]

2. Description of the Related Art Conventionally, as a method for preventing erroneous insertion of a cassette cartridge, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-83879, one groove for discrimination is provided on the bottom surface of the cassette cartridge to prevent erroneous insertion in the cassette holder. Providing a protrusion. When a cassette cartridge suitable for the system of the apparatus is to be inserted, the groove on the bottom surface of the cassette cartridge avoids the protrusion of the cassette holder, so that the cassette cartridge is inserted to a predetermined position in the cassette holder. On the other hand, if you try to insert a cassette that is not compatible with the system of the device, or if you try to insert the cassette cartridge in the reverse direction, there is no groove for the cassette cartridge at the position of the cassette holder, The cassette cartridge is caught in the outer surface of the cartridge and the cassette cartridge does not enter the cassette holder.

In addition, the end of the tape is detected by inserting a light-emitting body, which is installed so as to face the bottom surface of the cassette cartridge, into a hole provided on the bottom surface of the cassette cartridge, and when the tape reaches the end wound on the reel, it is transparent. Since it serves as a leader tape, the light of the light emitting body passes through the leader tape, and the light is received by the light receiving portions arranged on the left and right sides of the cassette cartridge to detect the end of the tape.

The groove for preventing erroneous insertion and the hole for detecting the end may be arranged on the same straight line in the direction in which the cassette cartridge is inserted into the cassette holder. Also,
The shape of the hole for inserting the luminous body was a cylindrical hole. Such a cassette cartridge is shown in FIG.

[0005]

In some cases, the position of the groove for preventing erroneous insertion provided in the cassette cartridge is arranged at a similar position regardless of the cassette cartridge of a different system. For this reason, for example, when the cassette cartridge 101 shown in FIG. 2 is mistakenly inserted into the cassette holder of another system, the cassette cartridge 101 with which the protrusion 13 for preventing the incorrect insertion provided in the cassette holder 80 is about to be inserted. There is a case where it is accidentally inserted into the groove 9 of. Normally, the protrusion for preventing erroneous insertion provided on the cassette holder comes into contact with the end portion 12 of the groove 9 provided on the cassette cartridge, and the cassette cartridge 101 cannot be inserted any more into the cassette holder 80, so erroneous insertion is prevented. It

However, due to some reason, the protrusion 13 is formed in the groove 1.
If the number 2 is overcome, the protrusion 13 may enter the hole 10. When the protrusion 13 enters the hole 10, even if the cassette cartridge 101 is further inserted into the cassette holder 80, the protrusion 13 comes into contact with the end surface of the hole 10, so that the cassette cartridge 101 is no longer in the cassette holder 80.
Not inserted into. Therefore, when the user mistakenly inserts the cassette cartridge 101 and tries to extract it from the cassette holder 80, the projection 13 is scratched by the end surface of the hole 10 because the hole 10 is formed in a cylindrical shape, and it is very difficult to extract the cassette cartridge 101. .

Further, when the cassette cartridge is inserted into the cassette holder which is matched with the system and the difference between the diameter of the light emitter and the diameter of the hole provided on the bottom surface of the cassette cartridge is small, the light emitter hits the bottom surface of the cassette cartridge and the hole is formed. It may not be inserted in.

[0008]

In the cassette cartridge of the present invention, a taper surface is provided at the portion facing the lower surface of the hole provided at the lower surface of the cassette cartridge for inserting the light emitter.

[0009]

Since the hole 10 has the tapered surface, the protrusion of the cassette holder is mistakenly inserted into the hole when the cassette cartridge is mistakenly inserted and the cassette cartridge is to be removed from the cassette holder. Climb out of the hole. Further, when the luminous body is inserted into the hole, the luminous body comes into contact with the tapered surface of the hole and is inserted into the hole even if the positions of the luminous body and the hole are misaligned.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
This will be described with reference to FIG.

FIG. 2 shows a conventional cassette cartridge 10.
1 is shown. FIG. 2 is a perspective view of the cassette cartridge 101 as seen from the upper surface side. 1 is a tape as a recording medium,
Reference numerals 2 and 3 are reels around which the tape 1 is wound, and reference numerals 4 and 5 are housings containing the reels 2 and 3. Reference numerals 6 and 7 denote lids that cover the opening 14 of the cassette cartridge 101. FIG. 2 shows a state in which the lids 6 and 7 are opened. In this state, the tape 1 in the opening 14 of the cassette cartridge 101 is exposed.

FIG. 3 shows a conventional cassette cartridge 10.
It is the perspective view which looked at 1 from the bottom side. Reference numerals 15 and 16 denote reel stand insertion holes provided on the bottom surface of the housing 5 for inserting the reel stand. The reels 2 and 3 are positioned on the reel base insertion holes 15 and 16 and are rotatably held. The reel stand is inserted into the reel stand engaging portions of the reels 2 and 3 through the reel stand insertion holes 15 and 16 to wind the tape. 9 and 17 are housings 5
It is a groove provided on the bottom surface 8 of the. Reference numeral 9 is a groove provided in the opening 14 of the cassette cartridge 101 in a direction perpendicular to the tape 1, and 17 is a direction orthogonal to the groove, that is, a direction parallel to a line connecting the centers of the reel 2 and the reel 3. It is a groove provided in. Reference numerals 6 and 7 denote lids that cover the opening 14 of the cassette cartridge 101 and extend along the outer surface 8 of the housing 5. Reference numeral 10 is a hole into which a light emitter for detecting the end of the tape is inserted. Note that when the lids 6 and 7 are open, the lid 6 moves above the opening 14 of the cassette cartridge 101 together with the lid 7 as shown in FIG.

FIG. 4 shows a cassette holder 80 with a conventional cassette cartridge 101. The cassette cartridge 101 is moved in the direction of arrow A from the position shown in FIG. 4 and inserted into the cassette holder 80. 18, 19
Is a reel stand insertion hole of the cassette holder 81. Also,
Reference numeral 20 is a protrusion for preventing the erroneous insertion of the cassette cartridge 101.

FIG. 5 shows a conventional cassette cartridge 10
1 is a plan view of a state immediately before 1 is inserted into a cassette holder 80 as viewed from a direction of a bottom surface 8 of a cassette cartridge 101. FIG. The groove 9 and the notches 21 and 22 of the lids 6 and 7 are arranged on the same straight line. From this state, the cassette cartridge 101 moves in the direction of arrow A and is inserted into the cassette holder 81. At this time, the protrusion 13 of the cassette holder 80 passes through the notches 21 and 22 of the lids 6 and 7, and the groove 9
Get in

FIG. 6 shows a conventional cassette cartridge 10.
1 shows the state of being attached to the cassette holder 80. The protrusion 13 of the cassette holder 81 is formed by the cassette cartridge 1
01 through the notches 21 and 22 of the lids 6 and 7 and the opening 1
4 is inserted into the groove 9 and moved in the groove 9 to be located near the end 12 of the groove 9.

FIG. 7 shows a conventional cassette cartridge 10.
1 shows an attempt to insert 1 into the cassette holder 81 of another system by mistake. At this time, the cassette holder 81
The erroneous insertion preventing projection 20 provided on the pallet happens to be at the position of the groove 9 of the cassette cartridge 101 and at a position different from the projection 13 of the cassette holder 80. The protrusion 20 of the cassette holder 81 is provided on the cassette cartridge 101.
After passing through the notches 21 and 22 of the lids 6 and 7, they are inserted into the groove 9 through the opening 14 and moved in the groove 9 to abut the end 12 of the groove 9. Therefore, the cassette cartridge 101 does not enter the cassette holder 81 any more. However, if the protrusion 13 gets over the end 12 of the groove 9, the cassette cartridge 101 is further inserted into the cassette holder 81, and the protrusion 13 of the cassette holder 81 moves to a position where it enters the hole 10 of the cassette cartridge 101. . FIG. 8 shows this state. If the cassette cartridge 101 is to be pulled out from the cassette holder 81 in this state, the projection 13 abuts the wall of the hole 10 and cannot be easily pulled out.

FIG. 1 shows a cassette cartridge 1 according to the present invention.
Indicates 00. The figure is a perspective view of the cassette cartridge 100 as viewed from the direction of the bottom surface 8. 9 is the bottom surface 8 of the housing 5.
It is a groove provided in. Reference numeral 9 is a groove provided in the opening 14 of the cassette cartridge in a direction perpendicular to the tape 1, and 17 is in a direction perpendicular to the groove, that is, in a direction parallel to a line connecting the centers of the reels 2 and 3. It is a groove provided. Notches 21 and 22 having substantially the same shape as the cross-sectional shape of the groove 9 are provided at positions of the lids 6 and 7 on the same straight line as the groove 9. Hole 1 for inserting the illuminant for tape end detection
In No. 0, the portion facing the surface 8 is provided with a taper as shown in the figure.

FIG. 9 is a sectional view of the hole 10 of this embodiment as seen from the side. The protrusion 20 of the cassette holder 81 rides over the end 12 of the groove 9 and passes through the hole 10 of the cassette cartridge 101.
It is in. From this state, the cassette cartridge 10
When 0 is pulled out in the direction of arrow A, the projection 20 is
As shown in 0, the taper surface 11 of the hole 10 is climbed. When the cassette cartridge 100 is further pulled out, the protrusions 20 are
It is inserted into and is pulled out smoothly.

FIG. 11 is a cross-sectional view showing a state immediately before the cassette cartridge 100 of this embodiment is correctly inserted into the cassette holder 80 and immediately before being inserted into the light emitting body 23 for detecting the end of the tape. Since the hole 10 is provided with the tapered surface 11, even if the positions of the light emitting body 23 and the hole 10 are deviated as shown in the figure, the light emitting body 23 is in contact with the tapered surface 11 as shown in FIG. Inserted in 10.

According to the present embodiment, the erroneous insertion is erroneously noticed when the protrusion 20 of the cassette holder 81 is inserted into the hole 10, and the cassette cartridge 100 is inserted into the cassette holder 8.
When it is attempted to pull out from 1, the projection 20 does not scratch the end surface of the hole 10, and it becomes easy to pull out the cassette cartridge from the cassette holder.

Further, the light emitting body 23 is easily inserted into the hole 10.

[0022]

According to the present invention, since the hole for inserting the light emitter provided on the bottom surface of the cassette cartridge is provided with the taper surface, the cassette cartridge is erroneously inserted until the erroneous insertion preventing projection of the cassette holder enters the hole. When the cassette cartridge is pushed into the holder and the cassette cartridge is erroneously inserted in this state and the cassette cartridge is to be pulled out from the cassette holder, the protrusion goes up the tapered portion of the hole and comes out of the hole, so that the cassette cartridge is easily pulled out from the cassette holder.

Further, when the luminous body is inserted into the hole, even if the positions of the luminous body and the luminous body are deviated from each other, the luminous body comes into contact with the tapered portion of the hole and is inserted into the hole. It is possible to prevent a situation where the cassette cartridge is not installed at a predetermined position of the device due to collision with the body.

[Brief description of drawings]

FIG. 1 is a perspective view of a cassette cartridge of the present invention.

FIG. 2 is a perspective view of a conventional cassette cartridge.

FIG. 3 is a perspective view of a conventional cassette cartridge.

FIG. 4 is a perspective view of a conventional cassette cartridge and cassette holder.

FIG. 5 is a plan view of a conventional cassette cartridge and cassette holder.

FIG. 6 is a plan view of a conventional cassette cartridge and cassette holder.

FIG. 7 is a plan view of a conventional cassette cartridge and cassette holder.

FIG. 8 is a plan view of a conventional cassette cartridge and cassette holder.

FIG. 9 is a sectional view of the vicinity of the hole in the cassette cartridge of the present invention.

FIG. 10 is a sectional view of the vicinity of the hole in the cassette cartridge of the present invention.

FIG. 11 is a sectional view of the vicinity of the hole in the cassette cartridge of the present invention.

FIG. 12 is a sectional view of the vicinity of the hole in the cassette cartridge of the present invention.

[Explanation of symbols]

1 ... Tape, 2, 3 ... Reel, 4 ... Upper case, 5 ... Lower case, 6, 7 ... Lid, 9 ... Groove, 13 ... Protrusion, 80, 81 ...
Cassette holder, 100, 101 ... Cassette cartridge

Claims (1)

[Claims] 1. A reel (2) (3) around which a tape (1) as a recording medium is wound, and a main body casing (4) (5) accommodating the reel (2) (3).
A lid (6) covering the opening through which the tape (1) is exposed, a groove (9) provided on the surface (8) of the housing (5), and the tape (1) being attached to the reel (2). Or, in order to detect that the end connected to (3) has been reached, the housing (5)
Hole (10) provided in the surface (8) of the housing (5) for inserting the light emitter installed opposite to the surface (8) of the
And a taper surface (11) provided in a portion facing the surface (8) of the hole (10).