JPH0411935B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette mounting device for mounting a cassette having an openable/closable lid while opening the lid.

Configuration of the conventional example and its problems The conventional cassette mounting device will be explained below. FIG. 1 shows an exploded view of a conventional cassette mounting device, and FIGS. 2 and 3 show sectional views of essential parts of the conventional cassette mounting device. Reference numeral 1 denotes a lid that is provided on the cassette 2 and is rotatable around a lid support shaft 3. 4 is the lock release lever 5
It is a leaf spring with a cassette 2 at its tip, and is fixed to a cassette holder 6 that holds the cassette 2.

A lid lock piece 7 is configured to be rotatable around a shaft lock piece support shaft 8 that is pivotally supported within the cassette 2, protrudes from a side surface 9 of the cassette 2, and locks the lid 1 in the closed state. A lid lock release piece 10 is embedded in the lid lock piece 7 and protrudes from the side surface 9 of the cassette 2. The lock release lever 5 provided at the tip of the leaf spring 4 fixed to the cassette holder 6 presses the lid lock release piece 10 through the window 11 provided in the cassette holder 6, and releases the lid lock piece 7 together with the lid lock piece support shaft 8. It is configured to rotate around the

The operation of the conventional cassette loading device constructed as described above will be explained below.

Place the cassette 2 with the lid 1 locked in the closed state by the lid lock piece 7 into the cassette holder 6 in the direction of arrow A.
When the cassette 2 is inserted in the direction shown in FIG. 2 reaches the position shown in FIG. 3, the lock release lever 5 is biased by the lid 1, and the leaf spring 4 is once elastically deformed in the direction of arrow B. When the cassette 2 is inserted to the position shown in FIG.
By pressing 0, the leaf spring 4 returns to the position where it contacts the cassette holder 6. When the lid lock release piece 10 installed in the lid lock piece 7 is pressed by the lock release lever 5,
Lid lock piece 7 that locks lid 1 in the closed state
At the same time, the lid lock piece rotates around the support shaft 8. As a result, the lid 1 becomes rotatable around the lid support shaft 3, and the cassette 2 is mounted while being opened by a lid opening hook 12 provided outside the cassette mounting device.

However, in the above configuration, until the cassette 2 is inserted into the cassette holder 6, the lock release lever 5 is locked until the leaf spring 4 is inserted into the cassette holder 6.
Therefore, when inserting the cassette 2 into the cassette holder 6, the lock release lever 5 must be biased by the tip of the lid 1 while applying elastic deformation to the leaf spring 4. Therefore,
When inserting cassette 2 into cassette holder 6,
A feeling of discomfort arises mainly due to the resistance force acting due to the elastic force of the leaf spring 4.

In addition, in order to reduce the discomfort that occurs when inserting the cassette 2 into the cassette holder 6, we have reduced the amount of protrusion of the lock release lever 5 into the cassette holder 6, and changed the shape of the tip of the lock release lever 5 so that it does not fit into the lid 1. If the shape is such that it is easily biased by the cassette holder 6, the lid lock release piece 10 may become locked due to the cassette 2 rattling inside the cassette holder 6 and the cassette 2 having various molding errors. When positioned at a distance from the release lever 5, the lock release lever 5 protrudes from the side surface 9 of the cassette 2 to ensure that the lid lock piece 7, which locks the lid 1 in the closed position, secures the cassette 2.
Push the lid release piece 10 in until it goes inside the lid.
This poses a problem in that the cassette 2 is attached without the lid 1 being opened by the lid opening hook 12, causing damage to the device and the cassette 2.

Purpose of the invention The present invention solves the above-mentioned conventional problems.
By configuring the lock release lever to be biased by the slide lever that moves as the cassette is inserted to press the lid lock release piece,
The cassette can be inserted smoothly into the cassette holder without any discomfort, and even if the cassette has rattled inside the cassette holder or a cassette with a large molding error is inserted into the cassette holder, the lid can be opened securely. It is an object of the present invention to provide a cassette mounting device capable of mounting a cassette.

Structure of the Invention The present invention provides a lid that locks the openable and closable lid of the cassette in the closed state by a slide lever that moves as the cassette is inserted biases a lock release lever provided on a cassette holder that holds the cassette. This is a cassette mounting device configured to drive the lid lock piece by pressing the lid lock release piece embedded in the lock piece, and the lock release lever presses the lid lock release piece only when the cassette has been inserted into the cassette holder. This structure allows the cassette to be inserted smoothly into the cassette holder without any discomfort, and even if the cassette has rattling inside the cassette holder or a cassette with a large molding error is inserted into the cassette holder. It is possible to configure the lock release lever so as to press the lid lock release piece sufficiently until the lid lock piece is reliably driven.

DESCRIPTION OF THE EMBODIMENTS FIGS. 4 and 5 are sectional views of essential parts of a cassette mounting device according to an embodiment of the present invention.
Note that the same members as those in the conventional example are given the same numbers and the description thereof will be omitted. Reference numeral 21 denotes a slide lever provided in contact with the lower surface of the cassette holder 22 that holds the cassette 2, and has a cam 23 at the side end. The slide lever 21 is the cassette holder 2
The slide lever spring 25 provided between the slide lever spring support shaft 24 and the slide lever 21 is biased in the direction of arrow C, and the cassette 2 is inserted into the cassette holder 22 in the direction of arrow D. cassette 2. A lock release lever 26 is rotatably supported by a lock release lever support shaft 27 installed in the cassette holder 22, and a lock release lever spring provided between the cassette holder 22 and the lock release lever 26. 28 in the direction of arrow E. Reference numeral 29 designates a lock release lever pin embedded in the lock release lever 26, which slides in contact with the cam 23 at the side end of the slide lever 21.

The operation of the cassette loading device of this embodiment constructed as described above will be explained below.

When the cassette 2 with the lid 1 locked in the closed state by the lid lock piece 7 is inserted into the cassette holder 22, the slide lever 21 is held in place by the slide lever spring 2 until the cassette 2 comes to the position shown in FIG.
5 in the direction of arrow C, and the lock release lever pin 29 embedded in the lock release lever 26 is pressed against the slide lever 2.
1, the tip of the lock release lever 26 touches the lid 1 against the tension of the lock release lever spring 28 which tries to bias it in the direction of the arrow E. Not held in position. When the cassette 2 moves in the direction of arrow D from the position shown in FIG.
As a result, the lock release lever 26 slides in the direction of arrow D against the tension of the lock release lever 26. As a result, the lock release lever pin 29 is biased by the cam 23, so that the tip of the lock release lever 26 is initially pressed against the lid. 1, but when the cassette 2 is inserted to the position shown in FIG. 5, the lock release lever 26, which is biased in the direction of arrow E by the lock release lever spring 28, As the lock release lever pin 29 slides according to the shape of the cam 23, it rotates around the lock release lever support shaft 27 in the direction of arrow E. The tip of the lock release lever 26 passes through the window 11 provided in the cassette holder 22 and presses the lid lock release piece 10 embedded in the lid lock piece 7 that locks the lid 1 in the closed state.
The lid lock release piece 10 rotates together with the lid lock piece 7 around the lid lock piece support shaft 8 and is maintained in a fully rotated state, the lid 1 becomes rotatable around the lid support shaft (not shown), and the cassette 2 The mounting device is mounted while the lid 1 is opened by a lid opening hook (not shown) provided on the outside of the mounting device. Further, when the cassette 2 is taken out from the cassette holder 22, when the cassette 2 moves in the direction of arrow C, the slide lever 21 is moved by the slide lever spring 2.
Due to the tension of 5, the cassette 2 moves in the direction of arrow C, and the lock release lever 2 moves accordingly.
6 is a lock release lever pin 29 by a cam 23.
Rotates in the direction of arrow F by being biased,
The cassette 2 is taken out from the cassette holder 22 while being held in a position where the tip of the lock release lever 26 does not touch the lid 1.

As described above, according to this embodiment, the slide lever that moves as the cassette is inserted biases the lock release lever provided on the cassette holder.
By configuring the lid lock piece to be driven by pressing the lid lock release piece embedded in the lid lock piece, the cassette can be inserted into the cassette holder without the tip of the lock release lever touching the lid. The lock release lever can be configured so that it can be inserted smoothly into the cassette holder without any discomfort, and it can sufficiently press the lid lock release piece. The lid lock piece can be reliably driven even when a large cassette is inserted into the cassette holder.

Effects of the Invention In the cassette loading device of the present invention, the slide lever that moves as the cassette is inserted biases the lock release lever provided on the cassette holder that holds the cassette, thereby closing the openable lid of the cassette. By configuring the lid lock piece to be driven by pressing the lid lock release piece embedded in the lid lock piece to be latched, the cassette can be smoothly inserted into the cassette holder without any discomfort, and the inside of the cassette holder can be easily inserted. Even if the cassette is loose or has a large molding error and is inserted into the cassette holder, the cassette can be reliably installed while opening the lid, which has a great practical effect.

[Brief explanation of drawings]

Figure 1 is an exploded view of a conventional cassette loading device, Figures 2 and 3 are sectional views of essential parts of the same device, and Figure 4
5 are sectional views of essential parts of a cassette mounting device according to an embodiment of the present invention. 1...Lid, 2...Cassette, 7...Lid lock piece, 10...Lid lock release piece, 21...Slide lever, 22...Cassette holder, 26
...Lock release lever.

Claims (1)

[Claims] 1 A lid that can be opened and closed, a lid lock piece that locks into a locking part on the inside of the lid to keep the lid closed, and a lid lock that is embedded in the lid lock piece and is provided so as to be exposed to the outside. A cassette having a release piece and a cassette holder for holding the cassette, the cassette is provided on the cassette holder and is pushed by the cassette when the cassette is inserted, and slid by the biasing force of a spring when the cassette is removed. Completely removing the cassette from the cassette holder, comprising a slide lever that returns and a lock release lever that is pivoted on a support shaft installed in the cassette holder and is biased by a biasing means in the direction of the cassette lid lock release piece. Sometimes, the slide lever moves the lock release lever to a position where it does not press the lid lock release piece, and when the insertion of the cassette into the cassette holder is completed, the slide lever moves the lock release lever to the lid lock release piece. 1. A cassette loading device characterized in that said lid lock piece is driven by urging the lid lock piece to press the lid lock piece.