JP3482512B2 - Tape cartridge - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge having a front cover and a top cover for protecting a tape at a front portion of a main body case. 2. Description of the Related Art A tape cartridge of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. Hei 7-29353, in which a pair of support shafts are provided on left and right connecting plates of a front cover, and the front cover is connected via a support shaft. The front lid is pivotally supported on the main body case, and the entire front lid is opened upward and swingably supported. The upper lid has both front sides connected to the upper portion of the front lid in a freely bendable manner. Further, a pair of slide pins are provided on left and right guide pieces of the upper lid, and these are guided by an elliptical guide groove provided on a front side wall of the main body case. When the front lid is fully opened, the upper lid rides above the upper wall of the main body case. Since it is necessary to secure a movable area of the guide piece when opening and closing the upper lid, a step-down surface is formed on the front side wall of the main body case, and a guide groove is provided therein. [0003] In the tape cartridge having the stepped surface provided on the front side wall of the main body case as described above, the corners on both sides of the rear edge of the upper lid when the lid is closed are stepped. It is located in a protruding state on the lateral outside of the surface. Moreover, the rear corner is sharply pointed. Therefore, when handling the tape cartridge, a fingertip or clothes may be hooked on the rear corner. In some cases, there is a risk of scratching. An object of the present invention is to provide a tape cartridge capable of preventing a fingertip or clothing from being caught in the rear corner even when the fingertip or clothing comes into contact with the rear corner of the upper lid during handling. Is to provide. [0005] According to an aspect of the present invention To this end, the pocket for tape loading the front as shown in FIG. 1
A front cover 7 and an upper cover 8 which are opened and closed in conjunction with each other are provided at a front portion of the main body case 1 having the recess 6 formed therein .
An upper surface plate 14 for covering the upper surface of the pocket 6;
And a guide plate 15 provided downward from both left and right ends of the
In conjunction with the opening operation of the front lid 7, the upper plate 14 of the upper lid 8 is
A guide for retracting rearward from the upper surface of the opening of the pocket 6
Guide means, and the guide means is a rear end of the left and right guide pieces 15.
Slide pins protruding inward facing each other on the inner surface
16 and the left and right front side walls of the main body case 1 in the front-rear direction.
Guide groove 1 that is recessed to guide slide pin 16
9 and the guide groove 19 is formed on each side wall of the main body case 1.
It is formed on the stepped surface 20 inside the outer surface, and when the lid is closed, the rear corners 21 on both sides of the rear edge of the upper lid 8 are
In the tape cartridge positioned laterally outward of the step- down surface 20 of the above, a chamfered surface 22 for removing a pointed top of the rear corner 21 is formed at a rear corner 21 of the upper lid 8.
The chamfered surface 22 includes a rear edge 14 a of the upper surface plate 14 and the upper surface plate 1.
4, the ridge 14b of the guide plate 15, and the rear edge 15 of the guide plate 15.
b is rounded to form a three-dimensional curved surface . The chamfered surface 22 provided at the rear corner 21 of the upper lid 8
Even if a fingertip or clothes touches the rear corner 21, they do not catch on the rear corner 21. If the chamfered surface 22 is formed as a curved surface, even if the rear corner 21 is intentionally rubbed against the skin, no damage is caused. According to the present invention, the rear corner 21 of the upper lid 8 is provided with a chamfered surface 22 for removing the apex of the tip so that fingertips and clothes are not caught on the rear corner 21. It is possible to avoid a situation in which a fingertip is accidentally scratched or a tape cartridge is dropped when handling the tape cartridge. FIG. 1 to FIG. 4 show an embodiment of a tape cartridge according to the present invention. This tape cartridge is for a video, and a main body case 1 is formed by screwing a plastic upper and lower case into a lid-like shape, and a pair of reels 3 around which a tape 2 is wound are provided rotatably on the left and right inside. I have. The tape 2 pulled out from one of the reels 3 is guided by tape guides 5 provided at the left and right tape outlets 4 on the front of the main body case 1 and wound on the other reel 3. A tape loading pocket 6 is recessed in the center of the front surface of the main body case 1, ie, between the left and right tape outlets 4. The pocket 6 has upper and lower surfaces and a front surface open. The tape 2 led out to the front surface of the main body case 1 is covered and protected by the front lid 7 and the upper lid 8 when not in use. The front cover 7 has a pocket 6 and a tape outlet 4.
A front plate 10 that covers the front surface of the main body case 1 including the front surface of the opening across the left and right, and a connecting piece 11 integrally connected to extend from the left and right ends of the front plate 10 to the rear of the case. Support shafts 12 are provided on the inner surface of the projection 11 so as to face inwards. The left and right connecting pieces 11 are
It is located along the outside of both lateral side walls at the front part of the main body case 1, and supports the support shaft 12 in a shaft hole provided in each lateral side wall. Thereby, the front lid 7 can be opened and closed around the left and right support shafts 12 between a position where the front surfaces of the left and right tape outlets 4 and the pockets 6 are closed and an upper open position. A torsion coil spring 13 is attached to one support shaft 12 of the front lid 7 (see FIG. 3), and the spring 13 constantly biases the front lid 7 to a closed posture. As shown in FIG. 3, an upper cover 8 is provided on an upper surface plate 14 for covering the upper surface of the pocket 6 and the upper walls of the left and right tape outlets 4.
And a pair of guide pieces 15 connected downward from both left and right ends of the upper surface plate 14, and slide pins 16 protrude inwardly from the inner surfaces of the rear ends of the two guide pieces 15, respectively. The upper lid 8 is moved to a position where the upper surface plate 14 closes the upper surface of the pocket 6 in conjunction with the opening / closing operation of the front lid 7.
The opening / closing operation is performed over an open position where the upper surface of the main body case 12 is retracted from the upper surface of the opening on the top wall of the body case 12. For this purpose, the front ends of both connecting pieces 15 of the upper lid 8 are rotatably connected to the left and right end surfaces of the upper end of the front plate 10 of the front lid 7 via pins 17. A guide means is provided for retracting the upper surface plate 14 of the upper lid 8 rearward from the upper surface of the opening of the pocket 6 in conjunction with the opening operation of the front lid 7. The guide means includes left and right slide pins 16 and guide grooves 19 recessed in the front and rear directions on the left and right front side walls of the main body case 1. As shown in FIG. 3, the guide groove 19 is formed on a stepped surface 20 inside the outer surface of each of the left and right side walls of the upper case, and has a substantially "H" shape as a whole. In the non-use state, the front lid 7 and the upper lid 8 are closed as shown in FIG.
1 and the guide plate 15 are flush with each other. In this state, the rear corners 21 located on both sides of the rear edge of the upper lid 8 are positioned so as to protrude laterally outward from the step-down surface 20. Therefore, in the present invention, a chamfered surface 22 is provided at the rear corner 21 to prevent the fingertip or clothes from being caught on the rear corner 21, and the pointed tip is removed. [0014] [0015] and the edge 14a after top surface <br/> plate 14 as the chamfered surface 22 shown in FIG. 4, the edge portion 14b of the upper plate 14 and the guide plate 15, the trailing edge of the guide plate 15 15b are rounded as indicated by radii R3 to R5, and the chamfered surface 22 is formed into a three-dimensional curved surface. [0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a front part of a tape cartridge. FIG. 2 is an internal plan view showing a schematic structure of the tape cartridge. FIG. 3 is a side view in a state where a front lid and an upper lid are partially opened. FIG. 4 is a three-view drawing of a main part of an upper cover, showing details of a chamfered surface ; [Description of Signs] 7 Front lid 8 Top lid 20 Step-down surface 21 Rear corner 22 Beveled surface

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 23/087 525

Claims (1)

(57) [Claims] [Claim 1] A tape loading pocket on the front.
A front cover 7 and an upper cover 8 which are opened and closed in conjunction with each other are provided at a front portion of the main body case 1 having the recessed portion 6. An upper cover 18 covers an upper surface of the pocket 6.
And a guide plate 1 provided downward from both left and right ends of the upper surface plate 14
5 and the upper surface plate 14 of the upper lid 8 is
A guide for retracting rearward from the upper surface of the opening of the pocket 6
Guide means, and the guide means are respectively provided on the inner surfaces of the rear ends of the left and right guide pieces 15.
Slide pin 16 projecting inwardly facing
The left and right front side walls of the case 1 are
A guide groove 19 for guiding the guide pin 16, wherein the guide groove 19 is located inside the outer surface of each lateral side wall of the main body case 1.
The tape cartridge is formed on the stepped surface 20, and the rear corners 21 on both sides of the rear edge of the upper lid 8 when the lid is closed are located outside the stepped surface 20 of the main body case 1. A chamfered surface 22 is formed at the corner 21 to remove the apex of the rear corner 21. The chamfered surface 22 includes a rear edge 14 a of the upper surface plate 14 and an upper surface 14 a.
Edge 14b of plate 14 and guide plate 15, and trailing edge of guide plate 15
15b is rounded to form a three-dimensional curved surface
Tape cartridges, characterized in that that.