JP3388372B2 - Tape 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 tape cartridge provided with dust-proof measures around a window hole for detecting a tape end.

[0002]

8 and 9 show a conventional tape cartridge for 8 mm video. This is equipped with means for optically detecting the start and end of the tape 2 in the main body case 1 when loaded on the deck (for example, Jikken Sho 63-4).
9910 publication). That is, the light emitter 6 on the deck side enters the main body case 1, and the light from the light emitter 6 is transmitted through the transparent leader tapes attached to both ends of the tape 2 to the main body case 1.
The light is emitted from the window holes 10 provided on the left and right side walls 9 to the outside and received by the photodetector 8 on the deck side. The outside of the window hole 10 is a front lid 13 that closes the front side of the body case 1 when not in use.
However, when the tape cartridge is loaded in the deck, the front lid 13 is opened and rotated by the operation member on the deck side, so that the through hole 1 formed in the side plate 17
8 corresponds to the window hole 10 so that the window hole 10 can be opened.

A front lid lock member 36 for locking the front lid 13 in a closed state is provided near the rear side of the window hole 10 between the side surfaces of the side plate 17 of the front lid 13 and the side wall 9 of the body case 1. ing. The front lid lock member 36 has a claw 37 at the tip thereof and is supported so as to be swingable back and forth around a shaft 39 at the upper end with respect to the main body case 1. When the front lid 13 is closed, the claw 37 is closed. 13 is engaged with an engagement portion 42 provided on the inner surface of the rear end of the side plate 17, and this engagement state is held by a spring member 41 that always urges the front lid lock member 36 to swing forward. . When the tape cartridge is loaded in the deck, the release member 43 on the deck side is moved to the lower end portion 3 of the front lid lock member 36.
6a is pressed and brought into contact with the front lid lock member 36 by this abutment action.
Swings rearward against the spring member 41, the pawl 37 disengages from the engaging portion 42, and the front lid 13 can be opened upward.

[0004]

As described above, the window hole 10 through which the tape end detection light is transmitted is the side plate 1 of the front lid 13 when not in use.
The cover with 7 prevents dust from entering the case through the window hole 10. However, the side plate 1 of the front lid 13
7 and the side wall 9 of the main body case 1 having the window hole 10, there is a considerable gap due to the fact that, for example, a torsion coil spring 21 for biasing the front lid 13 to rotate in the closing direction is mounted. It is difficult to completely close the outer surface side of the window hole 10 in close contact with the side plate 17 of the lid 13, and there is a problem in dustproofness in this respect. Particularly in the case of vapor-deposited tape, since the tape 2 is easily corroded by harmful substances in the atmosphere, for example, suspended particles of sulfur and chlorine and compounds containing these, or mist-like substances such as sulfuric acid and nitric acid, dust around the window holes 10 is prevented. There is a need to fully enhance sex.

Therefore, an object of the present invention is to obtain a tape cartridge which can further improve the dustproof property around the window hole.
An object of the present invention is to obtain a tape cartridge which can ensure the dustproof property of the window hole with a simple structure using a front lid lock member. An object of the present invention is to obtain a tape cartridge that can contribute to downsizing and compactification of the deck side. An object of the present invention is to obtain a tape cartridge in which window holes can be formed rationally between the lid-matching surfaces of the side walls of the upper and lower cases forming the main body case and without complicating the molding die. An object of the present invention is to obtain a tape cartridge in which a torsion coil spring that biases the front lid to rotate in a closed posture can be easily hooked by using a member for ensuring dustproofness of a window hole.

[0006]

In the tape cartridge of the present invention, a window hole 10 for passing the tape end detection light is provided on the front end side of the side wall 9 of the main body case 1, and the main body case 1 is opened and closed on the front side thereof. The front cover 13 is provided. This front lid 13
Has a side plate 17 facing the outside of the side wall 9 in the vicinity of the window hole 10, and is pivotally mounted about a support shaft 19 so as to be rotatable. The side plate 17 of the front lid 13 is set so as to cover the outside of the window hole 10 when the front lid 13 is in the closed state and open the window hole 10 when the front lid 13 is in the open state.
The front lid lock member 3 is provided on the rear side of the window hole 10 between the facing surfaces of the side wall 9 of the main body case 1 and the side plate 17 of the front lid 13.
6 is disposed around the shaft 39 so as to be swingable back and forth. The front lid lock member 36 is engaged with the inner surface of the side plate 17 in the closed state of the front lid 13 in accordance with the swinging movement of the front lid. Part 4
It engages with 2 in a detachable manner.

Then, the front lid lock member 36 is used to attach the front lid 1.
In the closed and locked state of 3, the front lid lock member 36 is provided with a covering wall piece 44 that closes or closes the outer surface side of the window hole 10 by approaching or contacting it. The cover wall piece 44 extends between the facing surfaces of the side wall 9 and the side plate 17 when the front lid 13 is closed and locked, and extends until reaching a position that closes the outer surface side of the window hole 10 and is transparent. It is characterized by being formed. The cover wall piece 44 and the front lid lock member 36 can be integrally molded with a transparent synthetic resin material, or only the cover wall piece 44 may be made transparent and integrally molded by a two-color molding method. In these cases,
Since the cover wall piece 44 is integrated with the front lid lock member 36, the number of members can be reduced. However, the transparent cover wall piece 44 formed as a separate body may be integrally connected to the front lid lock member 36 by an appropriate means. In this case, the front lid lock member 36 may have a complicated shape. At this time, it can be molded without undercut and the like, which has an advantage that the mold structure is not complicated.

More specifically, in addition to the above construction, the main body case 1 is formed by connecting the upper and lower plastic cases 1a and 1b to each other in a lid-matching manner with screws or the like. It is pivotally attached to the main body case 1 via the projecting support shaft 19 so as to be openable and closable about the support shaft 19.
A torsion coil spring 2 for biasing the front lid 13 to rotate in a closed posture.
1, the front lid lock member 36 is swung forward so that the front lid locking member 36 engages with the engaging portion 42 provided on the inner surface of the side plate 17 in a disengageable manner in the closed state of the front lid 13. It is premised that the biasing spring member 41 is mounted.

Further, the window hole 10 is cut out at the upper end of the side wall 9 of the lower case 1b, and the upper end of the window hole 10 is closed at the lower end of the side wall 9 of the upper case 1a. At the lower end of the side wall 9 of the upper case 1a, an eaves wall 11 covering the upper outside of the window hole 10 is formed so as to extend laterally outward. The torsion coil spring 21 has an intermediate coil portion 21 a fitted on the support shaft 19 and one arm portion 2 extending from the intermediate coil portion 21 a.
1b provided on the inner surface of the side plate 17 of the front lid 13
2 and the other arm 21c extending from the intermediate coil 21a is hooked on the upper surface of the eaves wall 11. Then, in the state where the front lid 13 is closed and locked by the front lid locking member 36, the front lid locking member 36 is provided with a transparent covering wall piece 44 that closes or closes the outer surface side of the window hole 10 by approaching or contacting it. To do. The forward swing limit of the front lid lock member 36 by the spring member 41 is regulated by the upper edge of the cover wall piece 44 abuttingly locking the lower surface of the eave wall 11.

[0010]

When the front lid 13 is closed and not in use, the front lid lock member 36 is urged by the spring member 41 to swing forward around the shaft 39 as shown by the solid line in FIG. Specifically, the front lid lock member 36 is swung forward until the upper edge of the covering wall piece 44 is guided from below to the lower surface of the eaves wall 11 to receive and abut. Therefore, the covering wall piece 44 completely closes the outer surface of the window hole 10 in a state where the covering wall piece 44 is close to or in contact with the side wall 9.
As a result, the cover wall piece 44 prevents dust from entering the window hole 10 mainly from the lateral outer side, and the eaves wall 11 prevents dust from entering the window hole 10 from the upper side. At the same time, the front lid lock member 36 engages with the engaging portion 42 of the side plate 17 of the front lid 13 to exert the original lock function of holding the front lid 13 in the closed state. Therefore, the side plate 17 of the front lid 13 is located further outside the covering wall piece 44, and double prevents dust from entering the window hole 10.

When the tape cartridge is loaded on the deck, the front lid lock member 36 is the spring member 4 on the deck side member.
1. The engaging portion 4 on the front lid 13 side is rocked rearwardly against
The engagement with 2 is released, and thus the front lid 13 can be opened upward. When the front lid 13 is completely opened and opened, the front lid 13
By moving the side plate 17 to the front side as shown by the phantom line in FIG. 1, the outside of the window hole 10 is released from being closed by the side plate 17. At the same time, by swinging the front lid lock member 36 rearward, the covering wall piece 44 moves to the lower rear side of the window hole 10 in a direction in which the cover wall piece 44 escapes.
open. However, even if the covering wall piece 44 covers a part of the window hole 10, since the covering wall piece 44 itself is transparent, the tape end detection light passes through the covering wall piece 44 without any trouble. In this way, the cover wall piece 44 does not allow the window hole 10 to be entirely opened, but may be partially covered, so that the front lid lock member 3 is provided.
The rocking stroke of 6 in the front-rear direction need not be increased more than necessary.

[0012]

According to the present invention, the cover wall piece 4 provided on the front lid lock member 36 when the front lid 13 is closed and locked.
In step 4, the outer surface of the tape end detecting window 10 can be reliably closed in a state of being close to or in contact with it. Therefore, as compared with the conventional type in which only the side plate 17 of the front lid 13 covers the outer surface side of the window hole 10, it is possible to more reliably prevent dust from entering the main body case 1 through the window hole 10. Moreover, the covering wall piece 44
Is attached to the front lid lock member 36 and swings together with the front lid lock member 36. Therefore, the cover wall piece 44 can be structurally simplified as compared with the case where the cover wall piece 44 is independently provided around the window hole 10, and the assembling workability is improved. It is also excellent, and has the advantage that it can be provided at low cost as a whole.

Since the covering wall piece 44 is formed transparent,
The front and rear swinging stroke of the front lid lock member 36 is reduced,
Even if the covering wall piece 44 covers a part of the window hole 10 at the rearward swing stroke end, it does not hinder the transmission of the tape end detection light to the window hole 10 and the deck side. Since the operation stroke of the release member 43 of the front lid lock member 36 can be small, it also contributes well to downsizing and downsizing on the deck side.

The window hole 10 is formed by notching the upper surface of the side wall 9 of the lower case 1b so that the upper surface is opened, and the lower surface of the side wall 9 of the upper case 1a closes the upper surface of the window hole 10, that is, the upper and lower cases 1a.・ Window hole 1 between the mating surfaces of the side walls 9 of 1b
Since 0 is formed, the molding die can be simplified without undercutting or the like as compared with, for example, a type in which the window hole 10 is formed in the side wall 9 of the lower case 1b in a penetrating manner, which is suitable for mass production. . At the lower end of the side wall 9 of the upper case 1a, an eaves wall 11 is provided to cover the upper outside of the window hole 10, so that the eaves wall 11 can also prevent dust from entering the window hole 10 from above. The front lid lock member 36 is swung by the spring member 41 until the upper edge of the cover wall piece 44 comes into contact with the lower surface of the eaves wall 11, and this swing limit is set. The outside of the hole 10 can always be reliably blocked, and perfect dustproof performance can be achieved.

A torsion coil spring 21 for urging the front lid 13 to rotate in a closed posture has an intermediate coil portion 21a fitted on a support shaft 19 provided on a side plate 17 of the front lid 13 and one arm portion 21b.
To the side plate 17 and the other arm 21c to the main body case 1 side. At this time, the other arm 21c is to be hooked to the upper surface of the eave wall 11 using the eaves wall 11. Therefore, the spring 21 can be easily attached and stopped, and the assembling workability can be improved also in this respect.

[0016]

1 to 5 show an embodiment of a tape cartridge according to the present invention. This tape cartridge is for a video, and as shown in FIGS. 2 and 4, the main body case 1 thereof is made of plastic upper and lower cases 1a and 1b.
Are screwed together in a lid-matching manner, and a pair of reels 3 around which the tape 2 is wound are rotatably arranged on the left and right sides of the inside. The tape 2 drawn from one reel 3 is guided by the tape guides 5 and 5 provided at the left and right front tape outlets 4 and 4 of the main body case 1, passes through the front surface of the case, and is wound on the other reel 3.

The reel 3 on the bottom wall of the main body case 1
As shown in FIGS. 2 and 3, a through hole 7 is provided in the front center portion between the three, and when a tape cartridge is loaded in the deck, a light emitting device for detecting the tape end on the deck side is passed through the through hole 7 to the main body. Enter Case 1. In FIGS. 1 and 4, a window hole 10 is provided in each of the left and right side walls 9 of the main body case 1 at the front end side thereof so as to penetrate through the inside and outside of the main body case 1. After passing through the transparent leader tape at the tape end passing through the window, the light exits from the window 10 to the outside and is received by the photodetector on the deck side, whereby the tape end is detected.

Each of the window holes 10 is notched so that the upper surface is opened at the upper end of the side wall 9 of the lower case 1b. When the upper and lower cases 1a and 1b are joined together by lid-closing, the lower end of the side wall 9 of the upper case 1a is formed. The top surface of the opening of the window hole 10 is closed. When the window hole 10 is formed between the lid mating surfaces of the upper and lower cases 1a and 1b as described above, the window hole 10 can be molded with a simple mold structure without causing undercut or the like. More specifically, an eaves wall 11 is integrally provided at the lower end of the side wall 9 of the upper case 1a so as to project slightly toward the lateral outer side, and the eaves wall 11 forms an upper portion outside the window hole 10 at the eaves wall 11. The window hole 1 so that dust from above is blocked.
It is prevented from entering the main body case 1 through 0. As shown in FIG. 5, a spring receiving groove 11a is provided on the upper surface of the eaves wall 11.

3 and 4, there is a tape loading pocket 12 in the center of the front surface of the main body case 1, that is, between the left and right tape outlets 4. The upper and lower surfaces and front surface of the pocket 12 are open. The tape 2 led out to the front side of the main body case 1 is a front lid 1 when not in use.
3, the back cover 14 and the upper cover 15 respectively cover and protect. As shown in FIGS. 3 and 4, the front lid 13 is a main face plate 1 that closes the front openings of the pocket 12 and the tape outlet 4.
6 and a side plate 17 that is integrally provided from the left and right ends of the main face plate 16 toward the rear of the case, and support shafts 19 project from the inner surfaces of the left and right side face plates 17 so as to face each other. .

The left and right side plates 17 are closely opposed to the outer surface sides of the front ends of the left and right side walls 9, 9 of the main body case 1, and the support shaft 19 is provided with a shaft hole 20 formed in each of the left and right side walls 9. It is rotatably fitted in. As a result, the front lid 13 is
As shown by the solid line state, the left and right tape outlets 4 and 4 and the pocket 12 can be opened and closed about the left and right support shafts 19 in a posture of closing the front surfaces of the pockets 12 and the pocket 12 and in an upwardly opened posture shown by a phantom line in FIG. When the front lid 13 is closed, the side plate 17
Covers the outside of the window hole 10, and when the front lid 13 is open, the side plate 17 moves forward from the position of the window hole 10 to open the window hole 10 and enable detection of the tape end. In this case, similar to the through hole 18 of the front cover 13 of the conventional example shown in FIG. 8, the side plate 17 is provided with the through hole, and this through hole coincides with the window hole 10 when the front cover 13 is opened. The window hole 1
You may make it open 0.

In FIG. 1, the front lid 13 is provided with left and right support shafts 19.
A torsion coil spring 21 attached to one of the two is constantly urged to rotate in a closed posture. The torsion coil spring 21 has a spring receiving portion in which the intermediate coil portion 21a is fitted on the support shaft 19 and one arm portion 21b extending from the intermediate coil portion 21a is provided inside the side plate 17 of the front lid 13 to project. The other arm portion 21c which is hooked on and engaged with 22 and extends from the intermediate coil portion 21a.
Is guided to the spring receiving groove 11a of the eaves wall 11 from above and is engaged and locked. As a result, the other arm 21c
The canopy wall 11 can be used to easily hang it.

An upper lid 15 for opening and closing the upper surface of the pocket 12 is pivotally connected to the front lid 13. This top cover 15
As shown in FIG. 4, a main face plate 23 that closes the upper surface of the pocket 12
And the side plate 2 which is continuously provided downward from the left and right ends of the main face plate 23.
4, the slide shafts 25 project inwardly on the rear end sides of the left and right side plates 24, respectively.

The upper lid 15 closes the upper surface of the pocket 12 as shown by the solid line in FIG. 3 as the front lid 13 opens and closes, and the pocket 12 as shown by the chain double-dashed line in FIG.
Open and close over the open position that retracts to the rear of the upper surface of.
Therefore, as shown in FIGS. 2 and 4, the upper lid 15 is provided with a pair of left and right arms 27, 27 having joint pins 26 at the left and right ends of the front end portion of the main face plate 23 thereof.
An upper end portion 16 having an arc-shaped cross section formed on the upper end of the front lid 13 between
a and pin the joint pin 26 with the upper end portion 1.
The upper lid 15 is rotatably connected to the front lid 13 around the joint pin 26 by being fitted into the pin holes 28 provided on both left and right end surfaces of 6a. Further, as shown in FIG. 3, the slide shaft 25 is slidably guided and engaged with a guide groove 29 having a V-shape provided on each outer surface of the left and right side walls 9 of the body case 1.

As shown in FIGS. 3 and 4, the back cover 14 is provided with connecting pins 30 on the left and right of its upper end so as to project outward.
A boss 31 provided with the connecting pins 30 on the inner surface of the upper lid 15.
Is rotatably and pivotally connected to the pin hole 32. Further, leg portions 33 are provided outwardly on the left and right of the lower rear surface of the case back 14,
The slide pin 34 provided on the leg portion 33 is attached to the pocket 12
Slidingly engages with "S" -shaped guide grooves 35 provided on the left and right side walls, respectively. Now the back cover 14
With the opening and closing of the front lid 13 and the upper lid 15, the closed position for covering the back surface side of the tape 2 in the pocket 12 as shown by the solid line in FIG. 3 and the open state at the upper back of the pocket 12 as shown by the phantom line in FIG. It can be opened and closed in an open position located below the upper lid 15.

In FIGS. 1 and 5, a front lid lock member 36 is provided to securely hold the closed state of the front lid 13. The front lid lock member 36 has a claw 37 at an upper and lower intermediate portion of the front end thereof and a lateral shaft 39 at a base portion of an upper end thereof, and the shaft 39 is provided with a bearing 40 provided on the side wall 9 of the main body case 1. Support horizontally over. Thus, the left and right side walls 9 of the body case 1 and the side plate 17 of the front lid 13 facing the side walls 9
And the front lid lock member 3 on the rear side of the window hole 10.
6 is arranged via the shaft 39 so as to be swingable in the front-back direction with respect to the main body case 1.

When not in use, the front lid lock member 36 is biased forward by a spring member 41 disposed on the rear side of the front lid lock member 36, so that the pawl 37 causes the front lid 13 to move.
From the inner surface of the rear end of the side plate 17 to the engaging portion 42 projecting from the lower part of the rear end of the window hole 10 to wrap around and engage with the engaging portion 42 from below, thereby maintaining the closed state of the front lid 13. When loaded in the deck, the release member 43 on the deck side presses against the lower end portion 36a of the front lid lock member 36, and this abutment action causes the front lid lock member 36 to swing rearward against the force of the spring member 41. Then, the claw 37 is disengaged from the engaging portion 42, and the front lid 13
Can be opened upwards.

The front lid lock member 36 is provided with a covering wall piece 44 for closing the outer surface side of the window hole 10. The cover wall piece 44 has a thin, vertically-oriented plate shape, and is located inside the claw 37 at the front end of the front lid lock member 36 so as to be closer to the outer surface of the side wall 9 than the side plate 17. Are formed integrally with each other so as to project forward. Thus, by bringing the upper edge of the covering wall piece 44 into contact with the lower surface of the eaves wall 11, the forward swing limit of the front lid lock member 36 by the spring member 41 is restricted. In this state, the claw 37 of the front lid lock member 36 engages with the engaging portion 42 of the side plate 17 of the front lid 13, and at the same time, the covering wall piece 44 completely closes the outer surface side of the window hole 10.

As the front lid lock member 36 swings rearward, the cover wall piece 44 escapes rearward from the window hole 10. However, since the cover wall piece 44 is formed transparently, the front and rear swinging stroke of the front lid lock member 36 is made as small as possible, and the cover wall piece 44 is still in the window hole 10 at the rear swing stroke end. The tape edge detection light is transmitted through the window hole 10 even in the state of covering the portion. As a result, the moving stroke of the release member 43 on the deck side can be set small, so that the deck can be made smaller and more compact.

A transparent cover wall piece 44 is attached to the front lid lock member 36.
As a means for providing the front lid lock member 36 and the covering wall piece 4
4 can be integrally molded with a transparent resin such as PS resin or AS resin. Further, the cover wall piece 44 is made of transparent resin, and the front lid lock member 36 is made of opaque resin, so that both can be integrally molded in two colors. In these cases, the number of members is small, the workability in assembling is excellent, and it can be provided at a low cost as a whole. Further, the covering wall piece 44 is the front lid lock member 3
6 is molded separately from transparent plastic, or is formed from a transparent plastic sheet, and the locking member 3
It can also be integrally connected to 6. As the connecting means, for example, as shown in FIG. 6, a welding rib 45 is attached to the cover wall piece 44, and this is welded to the front lid lock member 36 by ultrasonic welding, or as shown in FIG. It is also possible to project a pin 46 on the wall piece 44 and press-fit the pin 46 into a hole 47 provided in the front lid lock member 36 or weld it by caulking. When these separate members are molded, the number of members increases, but the molding die can be simplified without causing an undercut or the like in the front lid lock member 36.

The cover wall piece 44 may be formed of a flexible synthetic resin sheet which is flexible. In this case, the covering wall piece 44 is formed so that the outer surface side of the window hole 10 can be sealed as completely as possible.
Can be elastically abutted on the outer surface of the side wall 9 in a close contact state at all times, and the resistance of sliding on the outer surface of the side wall 9 can be reduced as the front lid lock member 36 swings back and forth.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view of a main part.

FIG. 2 is a perspective view of the entire appearance.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a perspective view showing a front lid, an upper lid, and a back lid in a disassembled state.

FIG. 5 is a perspective view showing a front lid lock member of the front lid in a disassembled state.

FIG. 6 is a perspective view of a front lid lock member showing another embodiment.

FIG. 7 is a perspective view of a front lid lock member showing still another embodiment.

FIG. 8 is an overall external perspective view of a conventional example.

9 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

1 body case 2 tapes 9 Side wall 10 windows 11 eaves wall 13 front lid 17 Side plate 19 spindles 21 torsion coil spring 36 Front lid lock member 39 axes 41 Spring member 42 Engagement part 44 Cover wall piece

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 23/087 521

Claims (4)

(57) [Claims] 1. Plastic upper and lower cases 1a and 1b
A window hole 10 for passing the tape end detection light is provided on the front end side of the side wall 9 of the main body case 1 formed by connecting the front cover 13 and the front cover 13 for opening and closing the front side of the main body case 1. This front lid 13 has a side plate 17 facing the outside of the side wall 9 in the vicinity of the window hole 10, and projects from the side plate 17.
Yes and pivotally openably turns around the support shaft 19 in the casing 1 via a support shaft 19 of the set, side plate 17 of the front cover 13, when the front lid 13 is in a closed state window opening 10 The torsion coil spring 2 that covers the outside of the front lid 13 and opens the window hole 10 when the front lid 13 is in the open state, and biases the front lid 13 to rotate in a closed posture.
1, and the front lid lock member 36 is provided on the rear side of the window hole 10 between the facing surfaces of the side wall 9 of the main body case 1 and the side plate 17 of the front lid 13.
Is provided around the shaft 39 so as to be swingable back and forth, and when the front lid 13 is closed, the front lid lock member 36 is closed.
A spring member for urging the swing forward so that Le is engaged disengageably with respect to the engaging portion 42 provided on the inner face of the side face plate 17
In the tape cartridge in which 41 is mounted, the window hole 10 is cut out at the upper end of the side wall 9 of the lower case 1b.
The upper case 1a is formed above the window hole 10 at the lower end of the side wall 9 thereof.
The surface is closed, and the upper side of the side wall 9 of the upper case 1a is attached to the lower outside of the window hole 10
The covering eaves wall 11 is formed so as to project laterally outward.
The torsion coil spring 21 has an intermediate coil portion 21a.
Is fitted on the support shaft 19 and extends from the intermediate coil portion 21a.
One of the arm portions 21b is attached to the inner surface of the side plate 17 of the front lid 13.
Hook it to the spring receiving part 22 provided, and
The other arm 21c extending from the above is hooked on the upper surface of the eaves wall 11.
Only Yes stopped, before in a state where the lock closed front cover 13 in the lid lock member 36, the front lid lock member 36 covering Kabehen 44 transparent for closing close to contact with the outer surface side of the window opening 10 in the set The front lid lock member 36 is rocked forward by the spring member 41.
The limit is that the upper edge of the covering wall piece 44 contacts the lower surface of the eaves wall 11.
A tape cartridge that is regulated by stopping . 2. The tape cartridge according to claim 1, wherein the front cover lock member 36 and the cover wall piece 44 are integrally formed of transparent resin. 3. The tape cartridge according to claim 1, wherein the cover wall piece 44 is made of a transparent resin, and the front lid lock member 36 is made of an opaque resin. 4. The cover wall piece 44 is formed of a transparent resin separately from the front lid lock member 36, and the cover wall piece 44 and the front lid lock member 36 are integrally coupled. Tape cartridge .