KR960001041Y1 - Video cassette tape - Google Patents

Abstract

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Description

Video tape cassette

1 is an exploded perspective view showing a conventional video tape cassette

2 is an exploded perspective view showing a video tape cassette according to the present invention.

3 is a partial cross-sectional view showing the state of engagement of FIG.

4 is a perspective view showing another embodiment of a video tape cassette according to the present invention

5 is a cross-sectional view showing a coupling state of FIG.

* Explanation of symbols for main parts of the drawings

1, 2: upper, lower case 3: supply reel

4: take up reel 5: guide pin

6: Boss (Guide pin is coupled) 7, 8: Boss (forming sensor insert)

10: semi-circular projection 11: semi-circular groove

12: Channel type projections 13: Channel type grooves

The present invention relates to a video tape cassette, and more particularly, to a video tape cassette having improved coupling structure of upper and lower cases.

FIG. 1 shows a conventional video tape cassette, in which a supply reel 3 and a take-up reel 4 are provided inside the upper and lower cases 1 and 2, which are coupled to each other to form a box. It is assembled rotatably. At the edges of the upper and lower cases 1 and 2, guide pins 5 for guiding their coupling positions and bosses 6 to which the guide pins 5 are coupled are formed, and at one side of the central portion, Bosses 7 and 8 are formed which are joined to each other to form a sensor insertion portion into which the start / end detection sensor of the tape is inserted. And a reel support spring (9) for preventing the flow of the supply reel (3) and take-up reel (4) is installed on the inner upper surface of the upper case (1), upper, lower case (1) (2) is Guide pin (5), the boss (6) into which the guide pin (5) is inserted, the boss (7) (8) to be coupled to each other to form a sensor insertion portion in the state that the coupling position is aligned to the screw (not shown) It is fixedly coupled.

However, in the conventional video tape cassette configured as described above, the guide pins 5 and the bosses 6 to which the guide pins 5 are coupled, and the bosses 7 and 8 mutually coupled to form a sensor insertion portion are mutually connected. Since the portion to be joined is formed in a plane, the upper case (1) is lifted from the lower case (2) by the elasticity of the spring (9) while the lower case (2) on the upper case (1) The upper case (1) is separated from the lower case (2) by the impact of electric light generated during movement for fastening, and the supply reel (12) and take-up reel assembled in the upper and lower cases (1) and (2) There was a problem that the assembly position of (4) is disturbed.

The present invention has been made in view of the above-described problems, and provides a video tape cassette having an improved structure of a boss for inserting a lamp so that the upper and lower cases are not separated by the impact of vibration, etc. generated during movement for screwing. Has its purpose.

In order to achieve the above object, the present invention has an upper and lower case in which two tape reels are accommodated, and bosses forming a sensor insertion part into which a sensor for starting / end detection of a tape is inserted are respectively formed in the upper and lower cases. In the video tape cassette, the upper case and the lower case are characterized in that the upper case and the lower case are mutually assembled by combining the boss of the upper case and the boss of the lower case.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 shows a video tape cassette according to the present invention, which is connected to each other to form a box, the supply reel (3) and take-up reel (4) inside the lower case (1) (2) ) Is rotatably assembled. At the edges of the upper and lower cases 1 and 2, guide pins 5 for guiding their coupling positions and bosses 6 to which the guide pins 5 are coupled are formed, and at one side of the central portion, Upper and lower bosses (1) (2) are formed when the boss (7) (8) is coupled to each other to form a sensor insert for inserting the start / end detection sensor of the tape. And a reel support spring (9) for preventing the flow of the supply reel (3) and take-up reel (4) is installed on the inner upper surface of the upper case (1), upper, lower case (1) (2) is The guide pins 5, the bosses 6 into which the guide pins 5 are inserted, and the bosses 7 and 8 which form a sensor insertion portion into which the sensor for start / end detection is inserted are formed. And on the inner surface of the upper case (1) is provided with a reel support spring (9) to prevent the flow of the supply reel (3) and take-up reel (4), upper, lower case (1) (2) is The engagement position is aligned by the guide pin 5, the boss 6 into which the guide pin 5 is inserted, and the bosses 7 and 8, which are mutually coupled to form a sensor insertion section into which the start / end detection sensor is inserted. In this state, it is fixed by a screw (not shown). And the semi-circular projection (10) and the semi-circular groove (11) which is mutually locked to the coupling surface of the boss (7) (8) to form a sensor insertion portion into which the start / end detection sensor is inserted according to the features of the present invention Is formed.

4 shows another embodiment of the videotape cassette according to the present invention, which is mutually coupled to the mating surfaces of the bosses 7 and 8 forming a sensor insert into which a start / end detection sensor is inserted. A channel-like protrusion 12 and a channel-shaped groove 13 to be forcedly fitted are formed.

The video tape cassette according to the present invention configured as described above is assembled as follows. First, the supply reel (3), take-up reel (4), etc. are assembled to the lower case (2), and then the guide pin (5) and the maintenance (6) and the upper case (1) formed at the corners of the lower case (2). The guide pins 5 and the bosses 6 formed at the upper side are coupled to each other, and the bosses 7 and 8 formed at the central side of the upper and lower cases 1 and 2 are coupled to each other to detect the start / end of the tape. The semi-circular protrusions 10 and the semi-circular grooves 11 which are mutually locked as shown in FIG. 2 are formed on the coupling surfaces of the bosses 7 and 8 forming the sensor inserts into which the dragon sensor is inserted. As shown in FIG. 4, the channel-like protrusions 12 and the channel-type grooves 13 which are mutually force-fitted are formed, so that they are mutually locked or force-fitted as shown in FIG. Therefore, the upper and lower cases (1) and (2) so as not to lift each other by the elasticity of the reel support spring (9) Will be assembled. Therefore, the upper and lower cases (1) (2) and the supply reel (3) assembled therein by the impact of the electric light generated during the movement for screwing the upper and lower cases (1), take-up reel (4) The assembly position will not be disturbed.

As described above, the video tape cassette of the present invention has protrusions and grooves which are mutually locked or force-fitted on mutually engaging surfaces of bosses forming a sensor insertion portion into which a sensor for starting / end detection of a tape is inserted. Vibration lamps generated during movement for screw fastening do not disturb the assembly position of the upper and lower cases and the supply reel and take-up reel assembled therein.

Therefore, the time required for assembling the video tape cassette can be reduced, thereby improving productivity.

Claims (2)

A boss (7) (8) having an upper and lower case (1) and (2) for storing two tape reels, and forming a sensor insertion portion into which the sensor for detecting start / end of a tape is inserted into the upper and lower case (1) and (2). In the video tape cassettes are respectively formed, A semicircular protrusion 8a is formed on the outer circumferential surface of one side of the bosses 7 and 8 of the upper case 1, 2, and a semicircular groove 11 corresponding to the semicircular synchronous 8a is formed on the inner circumferential surface of the other side. The upper and lower cases (1) and (2) are configured to be preassembled by locking the protrusions 8a and the grooves 11 while the outer peripheral surface of one side of the bosses 7 and 8 is inserted into the inner peripheral surface of the other side. Tape cassette. A boss (7) (8) having an upper and lower case (1) and (2) for storing two tape reels, and forming a sensor insertion portion into which the sensor for detecting start / end of a tape is inserted into the upper and lower case (1) and (2). In the video tape cassettes are respectively formed, One of the bosses 7 and 8 of the upper case 1 and 2 has a channel protrusion 12 formed on the outer circumferential surface of one side and a channel groove 13 corresponding to the channel protrusion 12 on the inner circumferential surface of the other side. ) Is formed, the upper and lower cases (1) and (2) by the projection 12 and the groove 13 is forcibly interfitted while the outer circumferential surface of one side of the bosses 7 and 8 is inserted into the inner circumferential surface of the other side. And a prefabricated video tape cassette.