JPH1125650A - Recording medium cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance operability by miniaturizing an erroneous recording preventing member and making it light in weight. SOLUTION: This cartridge is provided with a cartridge main body in which a guiding protruding part 39 freely movably supporting an erroneous recording preventing member 37 and recessing parts for lock 40 are provided on the principal plane of the guiding protruding part 39 and the erroneous recording preventing member 37 in which a holding recessing part 51 to be engaged with the guiding protruding part 39 of the cartridge main body and a protruding part for lock 55 to be engaged with the recessing parts for lock 40 of the cartridge main body is provided in this recessing part 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium cartridge in which a recording medium, such as a magnetic tape or an optical disk, on which an information signal is recorded is housed in a cartridge body.
The present invention relates to a recording medium cartridge provided with an erroneous recording prevention mechanism for preventing an information signal previously recorded from being erased due to erroneous overwriting of an information signal on a recording medium housed in a cartridge body.

[0002]

2. Description of the Related Art Conventionally, an information processing device such as a computer for processing information signals records and saves information signals processed by this device or records information signals processed by the information processing device. An external storage device is used. As the external storage device, a recording / reproducing apparatus using a recording medium cartridge in which a recording medium such as a magnetic tape or an optical disk on which an information signal is recorded is housed in a cartridge body is used.

A recording medium cartridge used in this type of recording / reproducing apparatus is disclosed, for example, in Japanese Patent Publication No. 52-1497.
There is a tape cartridge configured as disclosed in Japanese Unexamined Patent Publication No. 6-206. This type of tape cartridge 100
As shown in FIG. 15, for example, a cover member 102 having a substantially rectangular shape formed by molding a synthetic resin material such as a transparent polycarbonate resin, and a base plate 503 formed of a metal plate such as an aluminum plate. And a cartridge main body 101 which is configured by connecting the same with screws or the like. Although not shown, a pair of tape reels are rotatably housed inside the cartridge main body 101, and the magnetic tape 104 fed from one of the tape reels runs through the cartridge main body 101 along the front surface 101a. It is wound up on the other tape reel.

The front part 1 of the tape cartridge 100
A lid 105 that opens and closes a recording / reproducing opening through which a magnetic head for recording and / or reproducing information signals enters by sliding relative to the magnetic tape 104 is rotatably mounted on one side of the magnetic tape 104. ing. A drive opening 107 is provided at a substantially central portion of the front portion 101a so that an outer peripheral portion of the belt drive roller 106 for moving the magnetic tape 104 at a constant speed faces outward. Although not shown, the tape cartridge 100 has an endless belt for driving a tape reel therein. The endless belt runs as the belt drive roller 106 rotates.

When this tape cartridge 100 is mounted on a recording / reproducing device as an auxiliary storage device, the lid 10
5 is opened, the magnetic head of the recording / reproducing apparatus enters through the recording / reproducing opening, and lightly contacts the signal recording surface of the magnetic tape 104. Further, the drive roller on the recording / reproducing apparatus side enters the cartridge main body 101 through the drive opening 107 provided on the front surface of the cartridge main body 101 and comes into contact with the belt drive roller 106. When the drive roller of the recording / reproducing apparatus is driven to rotate, the tape reel is rotated via the belt drive roller 106 so that the magnetic tape 104 runs at a constant speed. The recording and / or reproduction of the information signal is performed by the head.

By the way, this tape cartridge 100
Is provided with an erroneous recording prevention mechanism 108 for preventing the information signal previously recorded from being erased due to erroneous overwriting of the information signal on the magnetic tape 104. As shown in FIG. 15, the erroneous recording prevention mechanism 108 includes an erroneous recording detection hole 109 provided on the cover member 102 at one side of the front surface portion 101a of the cartridge body 101, and an erroneous recording detection hole 109. First to open
And a first position at which the erroneous recording detection hole 109 is opened and a second position at which the erroneous recording detection hole 109 is closed. Have been.

As shown in FIG. 15, the erroneous recording detection hole 109 is formed between one main surface 101b and the front surface 1 of the cartridge body 101 in which the erroneous recording preventing member 110 is movably disposed.
01a provided for the moving guide
Are provided on the front surface portion 101a of the cartridge body 101.

[0008] The erroneous recording preventing member 110 movably disposed in the concave portion 111 for movement guide is provided with a detecting portion 11 facing the erroneous recording detecting hole 109 as shown in FIG.
3 and a movement guide piece 112 that extends from the detection unit 113 substantially vertically and in parallel with the movement direction. In addition,
The detection unit 113 is formed in a size sufficient to close the erroneous recording detection hole 109.

The erroneous recording preventing member 1 configured as described above.
Reference numeral 10 denotes a first position where the erroneous recording detection hole 109 is opened as shown in FIG. 16, and an erroneous recording detection hole 1 as shown in FIG.
15 and FIG. 1 and FIG.
6 and in the direction of arrow F and the direction of arrow G in FIG. When the erroneous recording prevention member 110 is moved to the first or second position, the movement guide piece 112 is formed by a not-shown locking projection projecting from a side edge of the movement guide recess 111 of the cover member 102. By being locked at one or the other side edge, it is held at the position moved to the first or second position.

The erroneous recording prevention member 110 is provided in FIG.
As shown in the figure, when the detection section 113 is moved to the first position where the erroneous recording detection hole 109 is closed by moving the inside of the recess 111 for movement guide in the direction of arrow F in FIG. Then, the detection unit 113 is detected by the erroneous recording detection mechanism provided on the recording / reproducing apparatus side on which the tape cartridge 100 is mounted. That is, when the tape cartridge 100 is mounted on the recording / reproducing apparatus, the detector of the erroneous recording detection mechanism is pressed by the detector 113, and the detection of the detector 113 is performed. This detector 1
13 is detected by the erroneous recording detection mechanism on the recording / reproducing apparatus side, the recording / reproducing apparatus can be set to a recording operation mode enabling recording of an information signal on the magnetic tape 104, and A record is made.

Further, as shown in FIG. 17, the erroneous recording prevention member 110 is operated to move in the direction of the arrow G in FIG. 17 within the concave portion 111 for movement guide, and the detecting portion 113 is moved to the second position. Then, the erroneous recording detection hole 109 is opened, and the detection unit 113 is not detected by the detector of the erroneous recording detection mechanism provided on the recording / reproducing apparatus side. At this time, the erroneous recording detection mechanism projects the detector into the erroneous recording prevention hole 109,
An inoperative state is set, so that setting of the recording / reproducing apparatus to the recording operation mode is restricted, and recording of an information signal on the magnetic tape 104 is disabled. That is, when the erroneous recording prevention member 110 is moved to the second position, the tape cartridge 100 is in a state where re-recording of the information signal on the magnetic tape 104 is disabled, and the information signal recorded on the magnetic tape 104 is Erasure is prevented.

[0012]

The erroneous recording prevention member 110 provided in the erroneous recording prevention mechanism 108 described above is
There is a problem that the external dimensions are larger than necessary and the weight is larger than necessary with respect to the cartridge body 101.

Therefore, this erroneous recording prevention mechanism 108
The operating force required to move the erroneous recording prevention member 110 or the fixing force required to temporarily fix the erroneous recording prevention member 110 is 40 to 1
Since it is set to about 200 gf and a relatively large operation force is required, there is a problem that operability is low.

When the erroneous recording prevention member 110 is moved, the cover member 102 is moved.
This is performed by inserting a claw, a sharp pin, or the like into the gap between the erroneous recording prevention member 110 and the erroneous recording prevention member 110.

Further, since the erroneous recording prevention member 110 is fitted into and assembled to the cover member 102, if it is once assembled to the cover member 102 and then removed, permanent deformation occurs at the time of removal and the white color changes. There has been a problem in that re-assembly becomes impossible due to the occurrence of breakage such as cracking or cracking.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tape cartridge capable of reducing the size and weight of an erroneous recording prevention member, improving operability, and being easily detachable from a cartridge body.

[0017]

In order to achieve the above-mentioned object, a tape cartridge according to the present invention is provided with a guide convex portion for movably supporting an erroneous recording preventing member. And a holding recess for engaging the guide projection of the cartridge body, and a locking projection for engaging with the locking recess of the cartridge body is provided in the holding recess. Erroneous recording prevention member.

According to the tape cartridge constructed as described above, the guide concave portion movably supporting the holding concave portion of the erroneous recording preventing member is provided with the locking concave portion,
By providing the locking convex portion located in the holding concave portion facing the locking concave portion, the size and weight of the erroneous recording preventing member can be reduced, and the erroneous recording preventing member can be operated with a relatively small operating force. It is easily moved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a specific embodiment of a tape cartridge according to the present invention will be described with reference to the drawings.

The following embodiment shows an example in which the present invention is applied to a tape cartridge using a magnetic tape as a recording medium on which information signals are recorded. Especially,
The tape cartridge shown below is used in a recording / reproducing device used as an external storage device of an information processing device such as a computer, and includes an information signal such as data recorded in an information recording unit of the information processing device, and an information signal. It is used to record information signals such as data supplied to the processing device.

As shown in FIGS. 1 and 2, the tape cartridge 1 includes a cartridge body 2 having a substantially rectangular shape as a whole, in which a cover member 3 and a base plate 4 are joined together by abutting each other. The cover member 3 constituting the cartridge main body 2 is formed of a synthetic resin material such as a transparent polycarbonate resin into a substantially rectangular box shape whose lower part is opened. The base plate 4 coupled to the open lower surface of the cover member 2 is formed by punching a thin metal plate such as aluminum or an aluminum alloy. The cover member 3 and the base plate 4 are opposed to a set screw 5 screwed into a screw stud (not shown) projecting from the cover member 3 and an engagement hole 6a provided in the base plate 4 as shown in FIG. The coupling studs 6 protruding from the inner surface of the cover member 3 to be engaged are integrally combined.

The front portion 2a of the cartridge body 2
As shown in FIG. 1, engaging grooves 2 for engaging with positioning ridges provided on a cartridge mounting portion of the recording / reproducing device side on which the tape cartridge 1 is mounted, as shown in FIG.
b and 2c are provided. These engagement grooves 2b, 2c
Are formed by projecting pieces projecting from the main surface on both sides of the cover member 3 and side edges of the base plate 4.

As shown in FIG. 1, one side of the front surface 2a of the cartridge body 2 has a concave recording / reproducing device into which a magnetic head of the recording / reproducing apparatus into which the tape cartridge 1 is mounted enters. Opening 7 is provided. The opening 7 is, as shown in FIG.
Of the base plate 4 and a cutout recess 7b formed by cutting out a part of the front end side of the base plate 4. Then, in the recording / reproducing opening 7,
As shown in FIG. 3, a pair of tape reels 13a, 13b
The magnetic tape 12 wound therebetween is exposed. The magnetic tape 12 is pulled out into the opening 7 through tape drawing holes formed on both sides of the opening 7, and the opening 7
Drive along the bottom of the. Also, an opening 7 for recording and reproduction is provided.
Is formed small enough to allow the magnetic head of the recording / reproducing apparatus to which the tape cartridge 1 is mounted to enter.
It is opened and closed by a lid 8 attached to the cartridge body 2. When the opening 7 is closed, as shown in FIG. 1, the lid 8 is formed so as to form substantially the same surface as the front surface 2a of the cartridge main body 2, and the base end is formed on the base plate 4 Is rotatably supported by a support shaft 9 erected at one of the front corners. The lid 8 is urged by a torsion spring 10 wound around a support shaft 9 in a direction to close the recording / reproducing opening 7. Further, the lid 8 has one end 8a on the base end side protruding into one engagement recess 2b of the cartridge body 2.

As shown in FIGS. 2 and 3, a pair of reel support shafts 11a and 11b are erected in the center of the base plate 4 in parallel in the longitudinal direction of the base plate 4. A pair of tape reels 13a, 13b around which the magnetic tape 12 is wound are mounted on these reel support shafts 11a, 11b.
Are rotatably supported. Each of the tape reels 13a and 13b includes a hub around which the magnetic tape 12 is wound around the outer periphery, a lower flange formed integrally with the hub, and an upper flange which is combined with the hub in opposition to the lower flange. Have been. The magnetic tape 12 has a transparent leader tape of a predetermined length bonded to both ends thereof, and the leader tape is fixed to the hub by a clamper.

The base plate 4 is provided with a pair of guide rollers 14a and 14b located at both front corners. These guide rollers 14 a and 14 b are disposed so as to be supported by a support shaft erected on the base plate 4. The guide rollers 14a and 14b are integrally provided with flanges for supporting both ends of the magnetic tape 12 at upper and lower ends. Further, tape guides 15a and 15b are erected on the base plate 4 on both sides of the notch 7b constituting the recording / reproducing opening 7, respectively.

Accordingly, as shown in FIG. 3, in the tape cartridge 1, the magnetic tape 12 fed from one of the tape reels 13a is guided to the outer periphery of one of the guide rollers 14a. 2 along the front surface 2a. Then, the magnetic tape 12 is attached to the cartridge body 2.
Along the front surface 2a of the recording medium, and is supported between the pair of tape guides 15a and 15b, and traverses the inside of the recording / reproducing opening 7 to be guided to the outer peripheral portion of the other guide roller 14b. The magnetic tape 12 is used for the guide roller 1.
4b, it is folded inward and wound on the other tape reel 13.

The tape cartridge 1 is provided with a tape drive mechanism for driving the magnetic tape 12 to travel along the above-described tape travel path. As shown in FIG. 2, the tape driving mechanism includes an endless driving belt 16, a belt driving roller 17, and a pair of belt guide rollers 18.
a and 18b. Belt drive roller 1
Reference numeral 7 is rotatably attached to a support shaft 19 which is located at a substantially central portion in the longitudinal direction on the front side of the base plate 4 and is erected. The belt drive roller 17 is made of an abrasion-resistant elastic material. The drive roller on the recording / reproducing apparatus side comes into contact with an upper portion of an outer peripheral portion on which the endless drive belt 16 is hung to transmit rotation. A slightly larger diameter driving flange portion is integrally provided.

The belt guide rollers 18a, 18
As shown in FIG. 2, b is located at both corners on the rear side of the base plate 4, respectively. These belt guide rollers 18a and 18b are rotatably attached to support shafts 18c and 18d laid on the base plate 4, respectively. The belt guide rollers 18a, 18b
Is formed in a substantially cylindrical shape by an elastic material such as synthetic rubber.

As shown in FIG. 3, the endless drive belt 16 is in contact with the outermost peripheral portion of the magnetic tape 12 wound on one tape reel 13a from one belt guide roller 18a with a predetermined tension. It is hung on the outer circumference of the small diameter portion of the belt drive roller 17. The endless drive belt 16 is brought into contact with the outer peripheral portion of the magnetic tape 12 wound around the other tape reel 13b from the belt drive roller 17 with a predetermined tension to the other belt guide roller 18B. It is led. Accordingly, as shown in FIG. 2, the endless drive belt 16 runs endlessly inside the cartridge main body 2 along a substantially T-shaped running path.

Further, an end detecting mechanism for detecting the start or end of the magnetic tape 12 is provided in the tape cartridge 1. As shown in FIG. 3, the end detecting mechanism is provided by a reflecting member 20 which is located near one of the guide rollers 14b of the base plate 4 and is attached to a mounting hole provided in parallel with the front edge of the base plate 4. It is configured. The mounting hole forms a mounting portion for the reflection member 20, and also forms an incident hole for detection light emitted from the light emitting element on the recording / reproducing apparatus side. Reflective member 20
Is formed of, for example, a transparent polycarbonate resin having a light transmitting property so that a cross-sectional shape thereof forms a right triangle, and a reflecting material such as a silver foil is stuck on an inclined surface thereof. The reflection member 20 refracts and reflects the detection light incident from the light emitting element on the recording / reproducing apparatus side through the mounting hole on the inclined surface, guides the detection light toward the front surface 2a of the cover member 3, and travels along the front surface 2a. To the magnetic tape 12 to be irradiated.

An opening 21 for driving a magnetic tape is provided substantially at the center of the front surface 2a of the cover member 3. Further, a front end portion 2a of the cover member 3 is provided adjacent to the opening 21 for driving the magnetic tape.
2 are provided. The end detecting unit 22 is configured as a thin portion facing the above-described reflecting member 20.

When the cartridge body 2 is constructed by combining the cover member 3 and the base plate 4 in the tape cartridge 1, the tape cartridge 1 has the magnetic tape driving opening 21 on the cover member 3 side and the base plate 4 has The attached belt drive roller 17 is located. As a result, a part of the outer peripheral portion of the drive flange portion of the belt drive roller 17 is made to face outward from the opening 21 for driving the magnetic tape. The recording / reproducing opening 7 is usually provided with a lid 8.
In a closed state.

In the tape cartridge 1 according to the present invention, as shown in FIGS. 1, 2 and 4, a state in which information signals can be recorded on the magnetic tape 12 housed in the tape cartridge 1 is set. Further, an erroneous recording prevention mechanism 31 for setting an erroneous recording prevention state which disables recording of an information signal on the magnetic tape 12 is provided. The erroneous recording prevention mechanism 31 is provided on the cover member 3 constituting the cartridge main body 2 facing the erroneous recording detection mechanism provided on the recording / reproducing apparatus side when the tape cartridge 1 is mounted on the recording / reproducing apparatus. Have been.

The erroneous recording prevention mechanism 31 includes an erroneous recording prevention member 37 attached to a position opposite to the lid 8 disposed on the front surface 2a of the cover member 3. The erroneous recording prevention member 37 is formed by molding a synthetic resin material containing, for example, a polyacetal resin, an ABS resin, or the like as a main component. The erroneous recording prevention member 37 can be formed by applying an elastic force by being formed by molding a synthetic resin material.
Furthermore, since smoothness can be imparted, it is possible to securely attach the cartridge body 2 to the cartridge body 2 and to realize smooth operability.

The erroneous recording prevention member 3 of the cover member 3
As shown in FIGS. 4, 5 and 6, the guide recess 3 in which the erroneous recording prevention member 37 moves
3 and an erroneous recording detection hole 32 that is opened and closed by an erroneous recording prevention member 37.

The guide concave portion 33 in which the erroneous recording preventing member 37 is disposed has a front surface 25 of the cover member 3 constituting the front portion 2a of the cartridge main body 2 and one main surface facing the base plate 4 of the cartridge main body 2. The cover member 3 is formed over the top plate 30 of the cover member 3.

As shown in FIGS. 6 and 7, a guide projection 39 sandwiched by an erroneous recording prevention member 37 is formed integrally with the bottom of the guide recess 33 so as to protrude. The bottom surface of the guide recess 33 is formed in parallel with the top plate 30 of the cover member 3 by forming an erroneous recording detection hole 32 in the front surface 25 of the cover member 3.

The guide convex portion 39 has a substantially rectangular locking concave portion 40 on the main surface thereof for regulating the moving position of the erroneous recording preventing member 37. As shown in FIG. 7, a position regulating convex portion 41 for regulating the moving position of the erroneous recording prevention member 37 is formed in the locking concave portion 40 at a substantially central portion of the erroneous recording preventing member 37 in the moving direction. I have.

As shown in FIGS. 7 and 8, the position restricting convex portion 41 has a height H ₁ from the bottom surface of the locking concave portion 40.
Is smaller than the height H ₀ from the bottom surface to the top surface, which is the depth of the locking recess 40.

The position restricting convex portion 41 is formed by adjusting the height H ₁ so that the erroneous recording preventing member 3 described later can be formed.
7 can be adjusted in the engagement state with the locking convex portion 55, so that the fixing force required for regulating the moving position of the erroneous recording preventing member 37 and temporarily fixing the same can be appropriately adjusted.

6 and 7 are provided on the guide projection 39.
As shown in (1), a locking portion 42 for locking the erroneous recording prevention member 37 is integrally formed at a side end facing the front surface 25 side of the cover member 3. The locking portion 42 is formed with a guide inclined surface 43 so as to guide the locking operation of the erroneous recording prevention member 37 and to guarantee the smooth movement of the erroneous recording prevention member 37.

On the bottom surface of the guide concave portion 33, a sliding support portion 45, which is located at one end of the guide convex portion 39 and supports the erroneous recording prevention member 37, is provided on the top plate 30 of the cover member 3. They are formed integrally in parallel.

An insertion slit 29 into which an insertion piece 54 provided on the erroneous recording prevention member 37 is inserted, as described later, is provided at an inner end side of a portion of the guide concave portion 33 extending on the top plate 30. Is formed. This insertion slit 29
Is formed by cutting out a part of the inner peripheral wall of the guide recess 33.

The insertion piece 54 of the erroneous recording prevention member 37 engages with the inner surface of the top plate 30 of the cover member 3 located near the inner end of the guide recess 33 and the insertion piece 54. An engagement recess 36 is formed to guide the movement of the head. The portion of the top plate 30 where the engagement concave portion 36 is formed serves as the pressing support portion 35 of the insertion piece 54.

The erroneous recording detection hole 32 opened and closed by the erroneous recording prevention member 37 is provided in the front surface 25 of the cover member 3 so as to be located in the guide recess 33. The erroneous recording detection hole 32 is provided at a position facing the detector of the erroneous recording detection mechanism arranged on the recording / reproducing apparatus side when the tape cartridge 1 is mounted on the recording / reproducing apparatus.
The erroneous recording detection hole 32 causes the detector of the erroneous recording detection mechanism to protrude into the cartridge body 2.

The guide recording recess 33 has an erroneous recording preventing member 3 at an edge perpendicular to the moving direction of the erroneous recording preventing member 37.
7, a semicircular operating notch 46 for moving the
46 are formed respectively.

The erroneous recording prevention member 37, which is located in the guide recess 33 and is attached to the cover member 3 constituting the cartridge 2, has a recording end on the base end side as shown in FIGS. 6, 7 and 9. A detecting unit for operating an erroneous recording detecting mechanism provided on the reproducing apparatus side;
The holding concave portion 51 that sandwiches the guide convex portion 39 of the guide concave portion 33 that is a part of the cover member 3 is provided on the base end side provided with.

The holding recess 51 protrudes substantially perpendicularly from the detection unit 50 and extends toward the top plate 30 side of the guide recess 33, and faces the moving guide piece 52. Locking piece 5 protruding from the detection unit 50 substantially in parallel
And 3. That is, the holding recess 51 is
As shown in FIGS. 7 and 9, the moving guide piece 52 and the locking piece 53 are formed in a substantially U-shaped cross section. The protrusion 39 moves along the guide inclined surface 43 formed on the locking portion 42 and is locked by the locking portion 42.

The moving guide piece 52 is provided in the guide recess 3.
3 is formed to a thickness substantially equal to the depth of the erroneous recording prevention member 3.
When the cover 7 is mounted in the guide recess 33, the main surface is substantially flush with the upper surface of the top plate 30 of the cover member 3. Also,
As shown in FIG. 9, an inclined guide surface 53 a is formed along the guide inclined surface 43 formed on the guide projection 33 at the tip end of the locking piece 53.

Further, the holding recess 5 of the erroneous recording preventing member 37
When the erroneous recording prevention member 37 is attached to the cover member 3, the top end of the cover member 3 is inserted into the insertion slit 29 provided in the guide recess 33. Insert 5 inserted into the inner surface of the
4 are protruded.

The insertion piece 54 protrudes from the lower end on the tip side of the moving guide piece 52, and a step 54a is formed on the upper surface of the moving guide piece 52 on the side of the connecting portion. This step 54
a has a height substantially equal to the thickness of the pressing support portion 35 on the cover member 3 side. Although not shown, the insertion piece 54
A chamfered portion for guiding the insertion movement when the insertion piece 54 is inserted into the insertion slit 29 is provided at the tip end of the insertion piece 54.

The moving guide piece 52 of the erroneous recording preventing member 37 is located at a substantially central portion on the inner surface side, and is inserted into and engaged with the locking concave portion 40 of the guide convex portion 39. 55 are protruded. Further, as shown in FIG. 5, the locking convex portion 55 is provided on a center line L parallel to the moving direction of the erroneous recording preventing member 37 of the locking concave portion 40.

The locking convex portion 55 is moved along the locking concave portion 40 as the erroneous recording preventing member 37 is moved, and engages with the position regulating convex portion 41 to prevent erroneous recording. The moving position of the member 37 is securely held. As shown in FIG. 5, the erroneous recording prevention member 37 is moved in the direction in which the locking convex portion 55 where the operating point of the operating force applied at the time of the moving operation is located is moved in the locking concave portion 40. , The operating force required to move the erroneous recording prevention member 37 is reduced.

The base end in the holding recess 51 is provided with
As shown in FIG. 9, for example, deformation promoting portions 56 having an arc-shaped cross section and having a radius of curvature of about 0.5 mm are provided. When the erroneous recording prevention member 37 is attached to and detached from the cartridge main body 2, the deformation promoting portion 56 elastically moves in a direction indicated by an arrow C in FIG. In order to promote the deformation, the holding concave portion 51 is easily elastically deformed, so that the holding concave portion 51 can be easily and reliably attached and detached.

It is preferable that the deformation promoting portion 56 has a radius of curvature of at least 0.1 mm and has a large radius of curvature as long as the thickness of the moving guide piece 52 permits. The erroneous recording prevention member 37 is formed with a large radius of curvature of the deformation accelerating portion 56, thereby preventing discoloration, cracks, and the like when the moving guide piece 52 is elastically deformed.

The erroneous recording prevention mechanism 31 is similar to that shown in FIG.
As shown in FIG.
For example, keys 61a and 61b indicating the recordable state and the non-recordable state by the moved erroneous recording prevention member 37 are provided by, for example, engraving or printing.

The erroneous recording prevention mechanism 31 is brought into a recordable state by moving the erroneous recording prevention member 37 to a display 61a indicating a recordable state, and is displayed on a display 61b indicating a non-recordable state. The erroneous recording prevention member 37 is moved to a state where recording is impossible.

The erroneous recording prevention member 3 configured as described above
7 is attached to the cover member 3, the moving guide piece 52
To the guide convex portion 39 side of the guide concave portion 33 provided in the cover member 3, and the locking convex portion 55 is inserted into the locking concave portion 40 of the guide convex portion 39 to guide the locking portion 42. The locking piece 53 is pushed along the inclined surface 43. At this time, the tip side of the insertion piece 53 faces the insertion slit 29.

When the erroneous recording prevention member 37 is pushed into the guide concave portion 33, as shown in FIGS. 9 and 10, the moving guide piece 52 is elastically deformed in the thickness direction, and the locking piece 53 engages. The guide protrusion 39 is sandwiched between the locking piece 53 and the moving guide piece 52 while entering the lower surface of the stop portion 42 and locked, and the holding recess 51 holds the guide protrusion 39.

The erroneous recording prevention member 37 is connected to the guide recess 3.
3, the insertion piece 54 enters inward from the insertion slit 29 along the inner surface of the pressing support piece 35 while elastically deforming in the thickness direction. At this time, the insertion piece 54
Is inserted into the engaging recess 36 so as not to protrude inward of the cartridge body 2, so that the space in which the magnetic tape 12 runs in the cartridge body 2 and the tape reels 13 a and 13 b are stored. The space in the cartridge body 2 can be maintained large without reducing the space.

The elastic force of the insertion piece 54 acts as a reaction force on the moving guide piece 52 so as to press the inner surface thereof against the guide projection 39. by this,
The erroneous recording prevention member 37 includes a moving guide piece 52 and a locking piece 42.
As a result, the pinching state of the guide projection 39 is maintained, and the resilient force of the insertion piece 54 acting on the pressing support piece 35 ensures that the guide projection 39 is assembled into the guide recess 33 and is prevented from falling off. At this time, since the resiliency of the insertion piece 54 acts in a direction perpendicular to the moving direction of the erroneous recording prevention member 37, the operability is not significantly affected.

When the erroneous recording prevention member 37 is attached to the guide recess 22 by the above-described operation, as shown in FIG. 10, the erroneous recording detection hole 32 is formed on the front surface 25 of the cover member 3 in which the erroneous recording detection hole 32 is formed. opposite.

In this manner, the erroneous recording preventing member 37 mounted and positioned in the guide concave portion 33 provided in the cover member 3.
The holding recess 51 is guided by the guide protrusion 39 and the insertion piece 54 is guided by the engagement recess 36 along the front surface 2a of the cartridge main body 2 as shown in FIGS.
It moves in the directions of the middle arrow A and the arrow B.

For example, when the erroneous recording preventing member 37 is moved from the second position shown in FIG. 4 to the first position shown in FIG. The locking convex portion 55 engaged with one wall surface of the position restricting convex portion 41 of the concave portion 40 rides on the position restricting convex portion 41 and moves. Then, the erroneous recording preventing member 37 is securely held at the first position by the locking convex portion 55 being engaged with the other wall surface of the position regulating convex portion 41.

Incidentally, the tape cartridge 1 according to the present invention
As shown in FIG. 1 and FIG.
When the detection unit 50 is moved to the outer side of the cartridge body 2 and is moved to the first position in which the erroneous recording detection hole 32 provided in the front surface 25 of the cover member 3 is closed, the magnetic part housed in the cartridge body 2 is moved. An information signal can be recorded on the tape 12.

In the tape cartridge 1, the erroneous recording preventing member 37 is moved from the second position shown in FIG.
When the detection unit 50 is moved to the second position where the erroneous recording detection hole 32 is opened by moving the cartridge to the inner side of the cartridge body 2 in the direction shown in FIG.
2 is an erroneous recording prevention state in which the recording of the information signal into the recording information 2 is disabled.

That is, in the recording / reproducing apparatus in which the tape cartridge 1 is mounted, the detecting section 5 of the erroneous recording preventing member 37 is provided.
A detection mechanism for detecting 0 is provided. This recording / reproducing apparatus, when the detection unit 50 is detected by the detection mechanism,
A recording operation mode that enables recording of an information signal on the magnetic tape 12 can be selected. When the detection unit does not detect the detection unit 50, the recording operation mode cannot be selected.

An example of the recording / reproducing apparatus 70 to which the tape cartridge 1 of the present invention is mounted will be described with reference to the drawings.

As shown in FIG. 12, the recording / reproducing apparatus 70 is a tape cartridge of the present invention which is inserted into the apparatus main body 71 through a cartridge insertion / removal opening 73 provided on the front panel 72 of the apparatus main body 71. 1 is provided with a cartridge mounting section 74 to which the cartridge 1 is mounted. On both sides of the cartridge mounting portion 74, projecting ridges 7 are engaged with the engaging grooves 2 b and 2 c provided on both sides on the front side of the tape cartridge 1.
5, 75 are provided.

The tape cartridge 1 is inserted into the apparatus main body 71 in the direction of arrow D in FIG. At this time, the tape cartridge 1 is inserted with the engagement grooves 2b, 2c engaged with the ridges 75, 75. In addition, tape cartridge 1
When the ridge 75 is engaged with the engagement groove 2b, the lid 8 is rotated by the tip of the ridge 75 against the urging force of the torsion spring 10, and the recording / reproducing opening is opened. Release 7.

The cartridge mounting section 74 is provided with positioning projections for pressing the tape cartridge 1 in the insertion direction and pressing support means. The tape cartridge 1 mounted on the cartridge mounting portion 74 is
The b and 2c are engaged with the ridges 75, 75, the insertion position is determined by the positioning projection, and the mounting position is determined by the pressing support means, and the cartridge is mounted on the cartridge mounting part 74.

In the apparatus main body 71, a magnetic head device 77 and a driving roller 78 are provided. When the tape cartridge 1 is mounted on the cartridge mounting portion 74, the magnetic head device 77 enters the recording / reproducing opening 7 and slidably contacts the magnetic tape 12, and the drive roller 78 opens the driving opening 21. Is pressed against the belt drive roller 17 through the belt. Here, when the driving roller 78 is driven, the belt driving roller 17 on the side of the tape cartridge 1 is rotated and operated.
The magnetic tape 12 travels at a constant speed, and the recording and reproduction of information signals to and from the magnetic tape 12 are performed by the magnetic head 77 that slides on the magnetic tape 12.

By the way, the tape cartridge 1 of the present invention
The recording / reproducing apparatus 70 to which is mounted a tape cartridge 1 has a detection mechanism 81 which detects the mounting of the tape cartridge 1 on the cartridge mounting section 74 and detects the detecting section 50 of the erroneous recording preventing member 37 mounted on the tape cartridge 1 Is provided. The detection mechanism 81 is located at a position facing the front surface 2a of the tape cartridge 1 mounted on the cartridge mounting section 74 as shown in FIG. When the recording detection hole 32 is at the first position closed, the erroneous recording prevention member 37
Is provided at a position opposed to.

As shown in FIG. 14, the detecting mechanism 81 has a first detector 82 for detecting the detecting section 50 of the erroneous recording preventing member 37 and the tape cartridge 1 mounted on the cartridge mounting section 74. A second detector 83 for detecting the fact is provided in parallel in the height direction. That is,
The first detector 82 is located on the upper surface side of the cartridge main body 2 and is attached to the detector 5 of the erroneous recording prevention member 37.
0, and the second detector 83 is provided with the erroneous recording prevention member 37.
Is disposed so as to face the front surface portion 2a of the cartridge main body 2 on the lower side.

Here, the tape cartridge 1 in which the erroneous recording preventing member 37 has been moved to the first position where the erroneous recording detecting hole 32 is closed, and the second cartridge in which the erroneous recording preventing member 37 has opened the erroneous recording detecting hole 32. Tape cartridge 1 moved to position
The detection state of the detection mechanism 81 when is mounted on the cartridge mounting section 74 will be described.

The tape cartridge 1 moved to the first position where the erroneous recording prevention member 37 has closed the erroneous recording detection hole 32.
Is mounted on the cartridge mounting portion 74, the first detector 82 is pressed by the detector 50 of the erroneous recording prevention member 37, and the second detector 83 is pressed by the front surface 2a of the cartridge body 2. You. Second detector 83
Is pressed, it is detected that the tape cartridge 1 is mounted on the cartridge mounting portion 74, and the first
Is pressed, it is detected that the erroneous recording prevention member 37 is at the first position. When the erroneous recording prevention member 37 is detected by the detection mechanism 81, the tape cartridge 1 mounted thereon is
Is determined to be in a state where an information signal can be recorded.
When the detection mechanism 81 detects that the tape cartridge 1 is in a recordable state, the recording / reproducing device 70 is set to a state in which a recording operation mode can be selected. Recording of an information signal is performed.

When the tape cartridge 1 in which the erroneous recording prevention member 37 is moved to the first position where the erroneous recording detection hole 32 is opened is mounted on the cartridge mounting portion 74, the second
Is pressed by the front surface portion 2a of the cartridge body 2, but the first detector 82 is projected into the erroneous recording detection hole 32 without being pressed by the detecting portion 50 of the erroneous recording prevention member 37. It is left standing. In this case, it is detected that the tape cartridge 1 is mounted on the cartridge mounting section 74. However, since the erroneous recording detection member 37 is not detected, the tape cartridge 1 mounted here is Is identified as being in a state that makes it impossible to record the information signal. The detection mechanism 81 detects that the tape cartridge 1 is in a state where recording is not possible.
Is detected by the recording / reproducing apparatus 70, the selection of the recording operation mode is restricted, and the recording of the information signal on the magnetic tape 12 is prohibited.
2 is protected.

The erroneous recording prevention hole 32 which disables the operation of the first detector 82 of the detection mechanism 81 is not actively provided, and the cartridge of the guide recess 33 in which the erroneous recording prevention member 37 is disposed is provided. The front side portion of the main body 2 may be replaced.

The detecting mechanism 81 provided on the recording / reproducing apparatus 50 side may use an optical detecting mechanism. That is, by detecting the state of reflected light emitted from the light emitting element and reflected by the tape cartridge 1 using a pair of light emitting element and light receiving element, the presence or absence of the erroneous recording prevention member 37 and the presence or absence of the mounting of the tape cartridge 1 are determined. You may make it detect.

Note that the above-described tape cartridge 1
When the erroneous recording prevention member 37 moves in parallel to the front surface of the cartridge body 2, the tape cartridge 1
Is set to a state in which the information signal can be recorded and a state in which the information signal cannot be recorded. A first position 50 is located on the front side of the cartridge body 2;
The tape cartridge 1 may be set to a state where information signals can be recorded and a state where recording is not possible by moving to the second position immersed inside the tape cartridge 1.

As described above, the tape cartridge 1
The cartridge main body 2 is formed with a guide convex portion 39 movably supporting the erroneous recording preventing member 37 and a locking concave portion 40 provided on a main surface of the guide convex portion 39; A holding concave portion 51 that engages with the convex portion 39 is formed, and a locking convex portion 55 that engages with the locking concave portion 40 of the cartridge body 2 in the holding concave portion 51.
By providing the erroneous recording prevention member 37 provided with the erroneous recording prevention member 37, the erroneous recording prevention member 37 can be reduced in size and weight. The fixing force required for fixing can be set optimally. Therefore, according to the tape cartridge 1, the operability of the erroneous recording prevention member 37 can be improved.

The tape cartridge 1 is located in the locking concave portion 40 of the cover member 3 at a substantially central portion in the moving direction of the locking convex portion 55 of the erroneous recording preventing member 37. Position regulating convex portion 41 for regulating the moving position
Is provided, the erroneous recording preventing member 37 can be further reduced in size and weight.

Further, in the tape cartridge 1, when the locking concave portion 40 of the cover member 3 moves the erroneous recording prevention member 37 on the center line L parallel to the moving direction of the erroneous recording preventing member 37, the erroneous recording is performed. Providing the operating point of the operating force acting on the preventing member 37 at the position thereof allows the erroneous recording preventing member 37 to be further reduced in size and weight, and the operability of the erroneous recording preventing member 37 is improved. It can be further improved.

According to the tape cartridge 1, the deformation promoting portion 56 is provided at the base end on the inner side of the holding recess 51 of the erroneous recording prevention member 37, so that the holding recess 51 is provided.
Can be easily elastically deformed, so that the erroneous recording prevention member 37 can be easily attached to and detached from the cartridge body 2. Therefore, according to the tape cartridge 1, the work of attaching the erroneous recording prevention member 37 to the cartridge main body 2 is facilitated, and the erroneous recording prevention member 37 removed from the cartridge main body 2 can be reassembled and used. It is said.

In the tape cartridge according to the present invention, the erroneous recording detection hole is located in the guide concave portion provided in the cover member and is provided in the front portion thereof, but is provided in the main surface portion. Is also good. In this case, for example, a part of the movement guide piece on the base end side is also used as the detection unit.

The present invention is not limited to a tape cartridge in which a magnetic tape is housed inside a cartridge body, but includes an optical disk, a magneto-optical disk, or the like inside a cartridge body formed by combining a pair of upper and lower halves. The same advantages as described above can be obtained by applying the present invention to a disk cartridge in which a disk-shaped recording medium is rotatably stored.

[0087]

As described above, according to the tape cartridge of the present invention, the guide convex portion for movably supporting the erroneous recording prevention member is formed, and the locking concave portion is provided on the main surface of the guide convex portion. An erroneous recording preventing member having a cartridge body formed therein, and a holding recess for engaging the guide projection of the cartridge body formed therein, and a locking projection engaging with the locking recess of the cartridge body provided in the holding recess. By providing the above, the erroneous recording prevention member can be reduced in size and weight, so that the operability of the erroneous recording prevention member can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a tape cartridge according to the present invention.

FIG. 2 is an exploded perspective view showing the tape cartridge.

FIG. 3 is a plan view showing the tape cartridge.

FIG. 4 is a perspective view showing an erroneous recording prevention mechanism provided in the tape cartridge.

FIG. 5 is a plan view showing the erroneous recording prevention mechanism.

FIG. 6 is a longitudinal sectional view showing the erroneous recording prevention mechanism.

FIG. 7 is an exploded perspective view showing the erroneous recording prevention mechanism.

FIG. 8 is a longitudinal sectional view showing a locking recess constituting the erroneous recording prevention mechanism.

FIG. 9 is a side view showing an erroneous recording preventing member constituting the erroneous recording preventing mechanism.

FIG. 10 is a longitudinal sectional view showing a state in which the upper erroneous recording prevention member is attached to and detached from the guide recess.

FIG. 11 is a plan view for explaining a display indicating whether or not recording is provided in the erroneous recording prevention mechanism.

FIG. 12 is a perspective view showing a recording / reproducing apparatus to which the tape cartridge is mounted.

FIG. 13 is a plan view showing a state in which a tape cartridge is mounted on the recording / reproducing apparatus, and an erroneous recording prevention member is detected by a detection mechanism on the recording / reproducing apparatus side.

FIG. 14 is a longitudinal sectional view showing a state in which the detection mechanism of the recording / reproducing apparatus detects a tape cartridge and an erroneous recording prevention member attached to the tape cartridge.

FIG. 15 is a perspective view showing a conventional tape cartridge.

FIG. 16 is a plan view for explaining a conventional erroneous recording prevention mechanism of a tape cartridge.

FIG. 17 is a plan view for explaining a conventional erroneous recording prevention mechanism of a tape cartridge.

[Explanation of symbols]

1 tape cartridge, 2 cartridge body, 3
Cover member, 4 base plate, 31 erroneous recording prevention mechanism, 3
7 erroneous recording prevention member, 39 guide convex portion, 40 locking concave portion, 41 position regulating convex portion, 50 detecting portion, 51 holding concave portion, 55 locking convex portion

Claims (5)

[Claims] 1. A cartridge main body in which a recording medium on which an information signal is recorded is stored, and a detection unit detected by a detection unit on a recording / reproducing device side, wherein the detection unit is detected by the detection unit. An erroneous recording prevention member movably attached to the cartridge main body between a position of the first position and a second position that is not detected by the detection means; A guide convex portion for movably supporting the preventing member is formed, a locking concave portion is provided on a main surface of the guide convex portion, and a holding concave portion engaged with the guide convex portion is provided on the erroneous recording preventing member. And a locking projection engaging with the locking recess is provided in the holding recess. 2. The erroneous recording prevention is performed by engaging the locking ridge of the erroneous recording preventing member in the locking dent of the cartridge main body at a substantially central portion in the moving direction of the locking ridge. 2. The recording medium cartridge according to claim 1, further comprising a position regulating protrusion for regulating a movement position of the member. 3. An operation force acting on the erroneous recording prevention member when the erroneous recording prevention member is moved on a center line parallel to a moving direction of the erroneous recording prevention member. The recording medium cartridge according to claim 1, wherein the power point is provided so as to be positioned. 4. The erroneous recording prevention member is formed of an elastic material, and a deformation promoting portion having an arc-shaped cross section that is elastically deformed is formed at a base end on an inner side of the holding recess. Item 2. The recording medium cartridge according to Item 1. 5. An indication indicating whether or not recording is possible depending on the position of movement of the erroneous recording prevention member is provided near the locking recess of the cartridge main body.
A recording medium cartridge according to claim 1.