JPH07134882A - Tape cartridge - Google Patents

Abstract

PURPOSE:To improve an assembling readiness of an upper lid to a main body case in a tape cartridge provided with a front lid and the upper lid for opening/ closing a pocket to load a tape. CONSTITUTION:A front lid 7 is set in front of a pocket 6, which turns upward to an upper side than an upper surface of the pocket 6 about a supporting shaft 13. An upper lid 10 is disposed above the pocket 6. When the front lid 7 is turned upward, the upper lid 10 is pressed rearward of the pocket with a front end thereof being pushed upward of the pocket 6. A slider 19 is slided backward of the pocket along a guide groove 23, whereby the pocket is opened. An introduction groove 25 is formed at a rear end of the guide groove 23 continuously with the guide groove to reach the outside of an upper wall 24 of a main body case 1. The upper lid 10 easily introduces and fits the slider 19 into the guide groove 23 from the introduction groove 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge having a front lid and an upper lid for opening and closing a tape loading pocket.

[0002]

2. Description of the Related Art A tape cartridge of this type is disclosed in, for example, Japanese Patent Laid-Open No. 57-210489 and 61-210.
It is known from Japanese Patent No. 584. In this case, unlike the lid opening / closing mode in which a tape loading pocket, such as an 8 mm video tape cartridge, is opened / closed by a double lid including a front lid and a back lid, in addition to the front lid and the back lid, the upper surface of the pocket is It also has an upper lid that opens and closes. By adding this upper lid, the opening amounts of the front lid and the back lid are enlarged.

[0003]

However, the upper lid of the conventional tape cartridge mentioned above is pivotally connected to the front lid.
As the front lid rotates upward, the upper lid simply slides on the upper wall of the main body case toward the rear of the upper surface of the pocket, and the upper lid is placed between the upper lid and the main body case. Since there is no such movement guide means, it is difficult to accurately move the upper lid backward if the pivotal connection between the upper lid and the front lid has rattling, and there is concern that the opening / closing operation of the upper lid may be uncertain.

An object of the present invention is to reliably guide the upper lid to the rear of the pocket in cooperation with the front lid in the tape cartridge having the above-described front lid and upper lid to ensure the opening / closing operation of the upper lid. The point is to improve the assembling property.

[0005]

A tape cartridge on which the present invention is based has, as shown in the drawings, tape outlets 4, 4 on the front and left sides of the main body case 1, and on the front surface of the main body case 1. A tape loading pocket 6 whose upper and lower surfaces and a front surface are opened is provided between the tape outlets 4, and a front cover 7 for opening and closing the front surface of the main body case 1 is opened upward around the spindle 13. It is movably supported and interlocks with the opening and closing of the front lid 7 and the upper surface of the pocket 6 and the tape outlet 4.
4 is provided with an upper lid 10 for opening and closing the upper wall. In addition, according to the present invention, the upper lid 10 includes the main face plate 17 and the main face plate 17
Has side plates 18 and 18 continuously provided at both left and right ends of the main face plate 17, and the front end side of the main face plate 17 is rotatably joined to the upper end portion of the front lid 7 around the joint pin 20. Between the upper lid 10 and the front lid 10 as the upper lid is opened and rotated.
Is provided with a guide means for moving the pocket 6 rearward to the rear of the upper surface of the pocket 6. The guide means is provided with a slider 19 on each of the left and right side surface plates 18 of the upper lid 10, and the slider 19 is provided on each of the left and right side walls of the body case 1. Guide groove 2 provided in 14 in the front-back direction
3 is slidably fitted in the guide groove 2
3 from the rear end to the upper surface wall 24 of the main body case 1.
Is formed with a slide guide groove 25 communicating with the outside.

[0006]

When the front lid 7 is rotated upward about the support shaft 13 toward the upper side of the pocket 6, the upper lid 10 is pushed rearward of the pocket while the front end portion of the upper lid 10 is pushed upward by the front lid 7. However, at this time, the slider 19 is guided rearward of the pocket along the guide groove 23, so that the slider 19 can be stably opened and moved rearward of the pocket.

The slide guide groove 25, which is formed in communication with the rear end of the guide groove 23, serves to facilitate fitting of the slider 19 into the guide groove 23 from above when the upper lid 10 is assembled to the main body case 1. .

[0008]

1 to 3 show an embodiment of a tape cartridge according to the present invention. This tape cartridge is for video, and as shown in FIG. 2 and FIG. 3, the main body case 1 is made by abutting upper and lower plastic cases 1a and 1b, and a pair of left and right reels around which the tape 2 is wound. 3 is rotatably arranged. The tape 2 pulled out from one reel 3 is guided by the tape guides 5 provided at the front left and right tape outlets 4 of the main body case 1 and wound on the other reel 3.

In FIG. 3, in the center of the front surface of the main body case 1,
That is, a tape loading pocket 6 is provided between the left and right tape outlets 4. The pocket 6 is formed so as to open the upper and lower surfaces and the front surface. The tape 2 led out to the front side of the main body case 1 is covered and protected by the front lid 7, the back lid 9 and the upper lid 10 when not in use.

The front lid 7, as shown in FIGS. 1 and 3,
A main face plate 11 that closes the front opening of the pocket 6 and the tape outlet 4, and a side face plate 12 that is integrally connected from the left and right ends of the main face plate 11 toward the rear of the case. Each inner face of the left and right side face plates 12 A support shaft 13 is provided on each of the shafts. The left and right side plates 12 are closely opposed to the outer surfaces of the front ends of the left and right side walls 14, 14 of the main body case 1, and the support shaft 13 is rotatably fitted in shaft holes 15 provided in the side walls 14. . As a result, the front lid 7 is supported on the left and right sides between a position for closing the front surfaces of the left and right tape outlets 4 and 4 and the pocket 6 as shown by a solid line in FIG. 1 and an upper open position shown by a two-dot chain line in FIG. It can be freely opened and closed around the shaft 13. The front lid 7 is provided with a torsion coil type spring 16 on one of the left and right support shafts 13, and is always biased by the spring 16 in the closing direction.

An upper lid 10 for opening and closing the upper surface of the pocket 6 is pivotally connected to the front lid 7. As shown in FIG. 2, the upper lid 10 is provided on the upper surface of the pocket 6 and the left and right tape outlets 4 and 4.
The main face plate 17 that covers the upper wall of the main face plate and the side face plates 18 that extend downward from the left and right ends of the main face plate 17, and the sliders 19 project from the inner surfaces of the rear ends of the left and right side face plates 18 respectively. There is. The upper lid 10 is interlocked with the opening / closing operation of the front lid 7 in FIG.
The open position can be opened and closed between a position where the upper surface of the pocket 6 is closed as shown by the solid line state and an open position where the upper surface of the pocket 6 is largely retracted rearward as shown by the two-dot chain line state in FIG. Therefore, as shown in FIG. 3, the upper lid 10 is provided with a pair of left and right forked arms 21 having joint pins 20 at the left and right ends of a front end portion 17a of a main face plate 17 thereof.
The upper end portion 11a having an arcuate cross-section formed at the upper end of the front lid 7 is sandwiched between the first and second portions 21, and the joint pin 20 is fitted into the pin holes 22 provided on the left and right end surfaces of the upper end portion 11a. It is rotatably spliced around the pin 20. Further, as shown in FIG. 1, the slider 19 is slidably fitted into a "V" shaped guide groove 23 provided in front and back on each outer surface of the left and right side walls 14 of the body case 1.

In this case, in order to make it easier to fit the slider 19 into the guide groove 23, a slider is introduced into the rear end of the guide groove 23 from the rear end to the outside of the upper wall 24 of the upper case 1a. The groove 25 is provided so that the rear end portion of the guide groove 23 is opened upward. If the upper end portion of the guide groove 23 is closed without such a slide guide groove 25, the upper lid 10
Are attached to the main case 1 and the left and right slides 19.1
Both sliders 19 must be fitted in the guide groove 23 by bending so as to increase the distance between the sliders 9. However, when the slider introducing groove 25 is provided, the left and right sliders can be formed without bending the upper lid 10. It can be fitted easily by dropping 19 into the guide groove 23 from above.

The back cover 9 is, as shown in FIGS. 1 and 3,
Connecting pins 26 are provided on the left and right of the upper end, and the connecting pin 2
6 is rotatably and pivotally connected to a pin hole 29 of a boss 27 provided on the inner surface of the upper lid 10. Also, leg portions 30 are provided on the left and right of the lower rear surface of the back cover 9, and slide pins 31 provided on the left and right leg portions 30 are provided on the left and right side walls in the pocket 6, respectively, and are provided with "S" -shaped guide grooves 32. Slidably engage with. Therefore, the back cover 9 has a closed position for covering the back surface side of the tape 2 in the pocket 6 as shown by the solid line state in FIG. 1 as the front lid 7 and the upper lid 10 are opened and closed, and a pocket as shown by the two-dot chain line state in FIG. The upper lid 10 which is open at the rear of the upper surface of 6
It can be opened and closed freely with the open position located on the lower side. In this case, if the pin introduction groove 33 that communicates from the upper end portion to the outside of the upper surface wall 24 of the main body case 1 is also provided at the upper end portion of the guide groove 32, the slide pin 31 can be guided from the pin introduction groove 33. 32 can be easily introduced.

In use, when the front lid 7 is pivoted upward around the support shaft 13 by loading the tape cartridge having the above-mentioned configuration into the tape recorder, the upper lid 10 slides on the slider 19.
Is guided rearward of the pocket by the guide groove 23, and is pushed rearward while inclining the front end portion 17a obliquely upward from the upper surface of the pocket 6, and the front end portion 17a is widely opened rearward from the upper surface of the pocket 6. At the same time, when the top lid 10 is opened, the back lid 9 guides the slide pin 31 upward and rearward with the guide groove 32, and opens the back side of the upper side of the pocket 6 until it overlaps with the lower side of the top lid 10 in the opened state. Moving. However, when the front lid 7 is fully opened and rotated, the upper lid 1
Since the 0 slide 19 is set to stop at a position before the slide guide groove 25 of the guide groove 23, there is no possibility that the slide guide 19 moves further to the slide guide groove 25 from the rear end portion of the guide groove 23 and comes off. Absent.

[0015]

According to the present invention, since the guide means by the slider 19 and the guide groove 23 is provided between the upper lid 10 and the main body case 1, the upper lid 10 is opened by the upward opening rotation of the front lid 7. The upper lid 10 can be reliably guided to the rear of the pocket, and the opening / closing operation of the upper lid 10 can be reliably performed. Moreover, since the slide guide groove 25 is formed at the rear end of the guide groove 23 so as to communicate from the rear end to the outside of the upper surface wall 24 of the main body case 1,
When the upper lid 10 is assembled to the main body case 1, the slide 1
It is sufficient to drop 9 into the guide groove 23 from the slide introduction groove 25, and the upper lid 10 can be easily assembled.

[Brief description of drawings]

FIG. 1 is a cross-sectional view taken along the line AA in FIG.

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

FIG. 3 is an exploded perspective view of a front lid, a back lid, and an upper lid.

[Explanation of symbols]

 1 Main Body Case 2 Tape 4 Tape Outlet 6 Pocket 7 Front Lid 10 Upper Lid 13 Support Shaft 14 Side Wall of Main Body Case 17 Main Face Plate of Upper Lid 18 Side Plate of Upper Lid 19 Slipper 23 Guide Groove 24 Guide Wall 24 Upper Body Wall 25 Slipper Introduction groove

Claims (1)

[Claims] 1. A tape loading device having tape outlets 4, 4 on the front left and right sides of a main body case 1, and a front surface of the main body case 1 having an upper surface and a lower surface opened between the tape outlets 4, 4. A pocket 6 is provided for the main body case 1, and a front lid 7 for opening and closing the front surface of the main body case 1 is provided for the spindle 1.
3 has an upper lid 10 rotatably supported so as to open and rotate upward, and has an upper lid 10 that opens and closes the upper surface of the pocket 6 and the upper wall of the tape outlets 4 and 4 in conjunction with opening and closing of the front lid 7. Has a main face plate 17 and side face plates 18 and 18 which are continuously provided at both left and right ends of the main face plate 17, and the front end side of the main face plate 17 is rotatably joined to the upper end portion of the front lid 7 around the joint pin 20. A guide means is provided between the main body case 1 and the upper lid 10 to move and guide the upper lid 10 so as to retract toward the rear of the upper surface of the pocket 6 as the front lid 7 is opened upward.
Sliders 19 are provided on the left and right side plates 18 of the
Is slidably fitted in guide grooves 23 provided in the left and right side walls 14 of the main body case 1 in the front-rear direction, and the rear end portion of the guide groove 23 extends from the rear end portion to the main body case 1.
A tape cartridge having a slide guide groove 25 communicating with the outside of the upper wall 24 of the tape cartridge.