JPS63253563A - Tape cassette loading device - Google Patents

Abstract

PURPOSE:To stabilize the recording and reproducing operations by providing a cassette insertion detecting member capable of turning to follow a cassette in the case of floating the inserted tape cassette and keeping an engaging piece of the detecting member and a cassette step part from disengaging. CONSTITUTION:When a lid of the cassette 1 is opened by interlocking with the insertion motion of the tape cassette 1, and in this case if the cassette 1 is floated up, since a guide pin 10 imbedded on a side plate is positioned in a wide-spread part of a long hole 19 formed on the cassette insertion detecting member 11, the cassette insertion detecting member 11 is also turned around an axis 16 by a force of a spring 20 of energizing means detained by a projecting part 21. By this turn, the engagement of the engaging piece 12 of the cassette insertion detecting member 11 with an engaging step part 7 on the bottom surface of the tape cassette 1 is never disengaged, so that the tape cassette 1 can be restored to its regular position.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention supports a magnetic tape stored in a tape drawer opening provided in the front surface of a cassette casing, and supports a magnetic tape stored in the cassette cassette. The present invention relates to a cassette mounting device in which a tape cassette having a rotatable opening/closing lid covering the tape cassette is mounted, and is particularly characterized by an opening means for opening the opening/closing lid in conjunction with the cassette mounting operation.

BACKGROUND OF THE INVENTION Conventionally, a cassette with an opening/closing lid as shown in FIG. 2 has been used, and a configuration as shown in FIG. has been done.

In Fig. 2, reference numeral 1 denotes a rectangular parallelepiped-shaped cassette housing with a supply reel and a take-up reel built in, and an opening 2 for pulling out the tape is provided on the front side of the housing. The tape 3 is supported by guide pins 42L, 4b, 40, etc. so that the tape 3 is positioned neatly in the opening 2.The tape 3 is supported by guide pins 42L, 4b, 40, etc.
It is an opening/closing lid having an opening/closing lid, which covers the magnetic tape 3 exposed from the opening 2 when not in use. Note that 7 is an engagement step formed on the bottom surface of the housing 1.

FIG. 3 shows the tape storage stand of the cassette loading device, and the tape cassette is inserted along the sliding surface 8 from the direction of the arrow. 9 is a side plate extending perpendicularly to the sliding surface 8, and this side plate 9 has a guide pin 1o and a shaft 16.
A detection member 11 is provided so as to be slidable in the direction indicated by the arrow, using the detection member 11 as a guide. Note that 18 and 19 are elongated holes provided in the detection member 11 so as to engage with the guide pin 1o and the shaft 16, respectively. This detection member 11 is provided with an engagement piece 12 that extends close to the sliding surface 8 . Reference numeral 13 designates a lid opening member whose intermediate portion is rotatably supported by the side plate 9 by the shaft 16, and a long hole 16 formed at one end of the lid opening member 13 is a member that is connected to the pin 1 implanted in the detection member 11.
The other end is bent into a hook shape, and the tip 132L is slidably engaged with the sliding surface 8 as shown in FIG.
It is configured so that it is located approximately on the same plane as the

Note that 17 is a spring that elastically biases the detection member 11 in a direction opposite to the arrow entry direction.

Next, this operation will be explained. When the cassette 1 is inserted into the cassette storage stand with the lid 6 closed as shown in FIG. 11 is moved in the direction of the arrow against the force of the spring 17. With this movement, the lid-opening member 13 rotates counterclockwise about the shaft 16, and with this rotation, the lid 5 is opened as shown in FIG.

Problems to be Solved by the Invention However, in the above configuration, if the cassette housing 1 rises above the sliding surface 8 due to an external impact with the lid 6 shown in FIG. When the engagement between the piece 12 and the stepped portion 7 is disengaged, the detection member 11 returns in the direction opposite to the arrow mark by the spring 17, and when the cassette housing 1 approaches the sliding surface 8 next, the detection member 11 returns to the direction opposite to the arrow direction. As shown in the figure, there is a problem in that the retaining piece 12 comes into contact with the bottom surface of the cassette housing 1 and the tape cassette does not return to its normal position.

Means for Solving the Problems In order to solve the above-mentioned problems, the cassette loading device of the present invention engages with the engagement step formed on the bottom surface of the inserted cassette housing, and loads the cassette along with the cassette. a cassette insertion detection member that moves reversibly from a first position to a second position; and a lid that opens the cassette lid as the cassette insertion detection member moves from the first position to the second position. and an urging means for rotationally urging the insertion detection member in a direction to engage with the retaining step portion of the cassette when the insertion detection member is located at the second position. It is something.

According to the above structure, even if the cassette floats upward in the inserted state, that is, in the state shown in FIG. 6, the cassette insertion detection member also rotates to follow the movement of the cassette. However, the engagement between the cassette insertion detection member and the stepped portion formed on the bottom surface of the cassette does not come off.

Embodiment FIG. 1 is a side view showing the main parts of one embodiment of the cassette loading device of the present invention, and the same reference numerals are given to the same components as in the conventional structure.

The major difference from the conventional configuration is that elongated holes 1B and 19 are formed in the cassette insertion detection member 11 so as to engage with the guide pin 1o and shaft 16 implanted in the side plate 9, respectively.
One end of the elongated hole 19 that engages with the guide pin 10 is formed wide, and a protrusion 21 formed on the detection member 11 serves as a return spring 20 for the cassette insertion detection member 11.
The point is that the detection lever 11 is configured so that a rotational force in the counterclockwise direction is always applied to the detection lever 11.

According to the above configuration, similarly to the conventional configuration, the cassette lid is opened in conjunction with the insertion operation of the cassette, and at the time of opening, the guide pin 1o is inserted into the elongated hole 1 as shown in FIG.
Because it is located in the wide part of cassette 9, in this state, cassette 1
Even if it floats upward, the detection member 11 also rotates υ around the shaft 16 due to the force of the spring 21 due to this floating movement, and engages with the engagement piece 12 as shown in FIG. The engagement with the stepped portion 7 is such that it cannot be disengaged.

Note that when the detection member 11 is returned to the cassette insertion direction, that is, when the cassette is taken out from the cassette storage stand, the guide pin 10 and the shaft 6 are located in the narrow portions of the elongated holes 18 and 19, respectively. Therefore, the detection member 1
1 is one that does not rotate.

Effects of the Invention As described above, according to the present invention, a housed cassette can be easily damaged by an external impact without adding any new parts or the like.
The problem that occurs when floating above the sliding surface can be easily reduced and eliminated, and stable recording and reproducing operations can be expected.

[Brief explanation of drawings]

FIG. 1 is a sectional side view of essential parts showing an embodiment of the cassette loading device of the present invention, FIG. 2 is a perspective view showing an example of the cassette used in the present invention, and FIG. 3 is a view of a conventional cassette loading device. FIGS. 4 and 5 are perspective views of the main parts, FIGS. 4 and 5 are side views of the main parts showing different operating states, and FIG. 6 is a side view of the main parts showing other different states. 1...Cassette housing, 2...Tape drawer opening, 3...Magnetic tape, 42L, 4b,
40...Guide pin, 6...Opening/closing lid,
6... Rotation fulcrum of the opening/closing lid, 7... Step part of the cassette case, 8... Sliding surface of the cassette case, 9... Side plate of cassette case, 10...
・Guide pin, 11...Detection member, 12...
...Engagement piece, 13... Lid opening is member, 13
...The lid opens at the tip of the member, 14...The bottle,
15, 18. 19・river・long hole, 16・・・・shaft,
17.20... Spring. Name of agent: Patent attorney Toshio Nakao and 1 other person7
- Way i: Tsu 卜 I! body 7-'2
7t! 11 = Jl'KJM company 12-4 joint piece t3- Kosen rj department company ff1-rri: L Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (2)

[Claims] (1) A cassette storage stand having a sliding surface on which a tape cassette is slidably inserted, and a cassette storage stand that is slidably arranged on the sliding surface of the cassette storage stand and formed on the bottom surface of the inserted cassette. It engages with the engaging portion, and the first
a cassette insertion detection member that moves reversibly from a position to a second position; a first biasing means that biases the cassette insertion detection member in the direction of the first position; a lid opening means for opening the lid of the cassette as the cassette moves from the first position to the second position; and when the cassette insertion detection member is located at the second position, the detection member A tape cassette loading device comprising: a second biasing means for rotating and biasing in a direction to engage an engaging portion of a stored cassette. (2) The tape cassette loading device according to claim 1, wherein the first biasing means and the second biasing means are shared by the same spring.