JPS6120254A - Cassette loading device - Google Patents

Abstract

PURPOSE:To smoothly insert a cassette into a cassette holder with no feeling of physical disorder, by constituting a cassette loading device in such a way that a cover lock releasing piece is pressed by an energizing member provided at the midway of a route along which the cassette holder moves. CONSTITUTION:The front end of a lock releasing lever 22 presses a cover lock releasing piece 10 implanted in a cover locking piece 7 which locks a cover 1 to its closed condition through a window section 11 provided in a cassette holder. Then the cover lock releasing piece 10 is maintained under a condition where the piece 10 is completely turned around a cover locking piece supporting shaft 8 together with the cover locking piece 7 and the cover 1 is set to a condition where the cover 1 can move around a cover supporting shaft 3. The cassette holder 21 is lowered in the direction shown by the arrow E by a driving means which is not shown in the figure and, as the holder 21 is lowered, the lock releasing lever 22 slides along an energizing member 26 while it is energized by the energizing member 26 and a cassette 2 is loaded with the cover 1 being opened by means of cover opening hook 12 provided at the outside of this cassette loading device.

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.

A conventional cassette loading device will be described below. 1st
The figure shows an exploded view of a conventional cassette mounting device, and FIGS. 2 to 3 show cross-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 as the lid support shaft 3 is rotated. Reference numeral 4 denotes a cassette holder 6 which is a sprung plate with a lock release lever 6 at its tip and holds the cassette 2.
It is stuck to.

Reference numeral 7 denotes a lid lock piece, which is configured to be movable around a lid lock piece support shaft 8 that is pivotally supported within the cassette 2, protrudes from the side surface 9 of the cassette 2, and locks the lid 1 in a 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 6 provided at the tip of the leaf spring 4 fixed to the cassette holder 6 passes through the window 11 provided in the cassette holder 6 and presses the lid lock release piece 1o together with the lid lock piece 7. It is configured to rotate around a support shaft 8.

The operation of the conventional cassette loading device configured as described above will be described 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 holter 6 in the direction of the arrow, the cassette 2 is held at the tip of the leaf spring 4 until the cassette 2 reaches the position shown in FIG. The lock release lever 6 is held at a position where the leaf spring 4 comes into contact with the cassette holder 6, but when the cassette 2 comes to the position shown in FIG. It is once elastically deformed in the direction of arrow B. Then, when the cassette 2 is inserted to the position shown in FIG. Go back to. The lid lock release piece 10 embedded in the lid lock piece 7 is pressed by the lock release lever 6 to lock the 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 as the lid support shaft 3 rotates, 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, the lock release lever 6 cannot be used until the cassette 2 is inserted into the cassette holder 6.
is in a position where the leaf spring 4 contacts the cassette holder 〇, so when inserting the cassette 2 into the cassette holder 6, the tip of the lid 1 biases the lock release lever 6 while giving elastic deformation to the leaf spring 4. There must be. Therefore, when inserting the cassette 2 into the cassette holder 6,
A feeling of discomfort arises due to the resistance force acting on the crown 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 6 into the cassette holder 6, and changed the shape of the tip of the lock release lever 6 to the lid 1. If the cassette 2 is made into a shape that is easily biased by the cassette holder 6, the lid lock release piece 10 may become loose when the lock release lever 6, the lock release lever 6 protrudes from the side surface 9 of the cassette 2 sufficiently to ensure that the lid locking piece 7, which locks the lid 1 in the closed position, is inside the cassette 2. It becomes impossible to press the lid lock release piece 1o,
There is 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.

OBJECT OF THE INVENTION The present invention solves the above-mentioned problems of the conventional art.The present invention is intended to solve the above-mentioned problems of the conventional art. By pressing the cassette, the cassette can be smoothly inserted into the cassette holder without any discomfort, and it is also possible to insert a cassette with a large molding error into the cassette holder, even if the cassette has rattled inside the cassette holder. To provide a cassette mounting device capable of mounting a cassette while reliably opening a lid even when the lid is opened.

Structure of the Invention The present invention provides a mechanism in which, when a cassette is installed, a biasing member installed in the middle of the path of movement of a cassette holder that holds the cassette biases a lock release lever provided on the cassette holder, allowing the cassette to be opened and closed. This is a cassette mounting device configured to drive the lid lock piece by pressing a lid lock release piece embedded in the lid lock piece that locks the lid in the closed state, and when installing the cassette, the cassette holder By configuring the lock release lever to press the lid lock release piece during the transition, the cassette can be inserted neatly into the cassette holder without any discomfort, and the cassette will not play or form inside the cassette holder. Even when a cassette with a large error is inserted into a cassette holter, the lock release lever can be configured to sufficiently press the lid lock release piece until the lid lock heath is reliably driven.

DESCRIPTION OF EMBODIMENTS FIG. 4 shows an exploded view of a cassette mounting device according to an embodiment of the present invention, and FIGS. be. Note that the same members as those in the conventional example are given the same numbers and the description thereof will be omitted. 21 is a cassette holder that holds the cassette 2;

Reference numeral 22 denotes a lock release lever, which is rotatably supported by a lock release lever support shaft 23 implanted in the force center holder 21, and a lock release lever spring support shaft 24 implanted in the cassette holder 21 and the lock release lever 22. It is biased in the direction of arrow C by a lock release lever 26 provided at the opening. Reference numeral 26 denotes a biasing member fixed to a side plate 27 installed in parallel along the arrow direction and the arrow E direction, which are the paths through which the cassette holder 21 moves when the cassette 2 is mounted. The cassette holder 21 is installed parallel to the direction of the arrow E, which is the path along which the cassette holder 21 descends.

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

The lock release lever 22 is biased in the direction of arrow C by the lock release lever spring 26 so that the tip of the lock release lever 22 is held in a position where it does not touch the lid 1. When the cassette 2 with the lid 1 locked in the closed state is inserted, the cassette holder 21 is moved horizontally in the arrow direction by a driving means (not shown) in order to mount the cassette 2. When the cassette halter 21 moves to the position shown in FIG.
The lock release lever spindle 23 rotates in the direction of the arrow ゛ against the elastic force of the lock release lever 6. As a result, the tip of the lock release lever 22 is connected to the window 11 provided in the cassette holder 21.
The lid lock release heath 10, which is bridged to the lid lock piece 7 that locks the lid 1 in the closed state, is pressed through the lid lock piece 7, and the lid lock release heath 10, together with the lock piece 7, rotates on the lid lock piece support shaft 8. The fully rotated state is maintained, and the lid 1 becomes movable around the lid support shaft 3. Then, the cassette halter 21 is driven by an arrow E by a driving means (not shown).
Accordingly, the lock release lever 22 slides along the biasing member 26 while maintaining its biased state, and the cassette 2 is released from the lid provided outside the cassette loading device. The lid 1 can be completely attached while being opened by the hook 12. Also, when the cassette 2 is taken out from the cassette holder 21, the cassette holder 2
1 moves horizontally in the direction of arrow G from the position shown in FIG. As the cassette holder 21 moves, an arrow C appears around the lock release lever support shaft 23.
The lock release lever 22 is rotated in the direction so that the tip of the lock release lever 22 is held in a position where it does not touch the lid 1, and then the cassette 2 is ejected from the cassette holder 21.

As described above, according to this embodiment, when the cassette is installed, the biasing member installed in the middle of the path of movement of the cassette holder biases the lock release lever provided on the cassette holder, so that the lid lock piece By configuring the lid lock piece to be driven by pressing the implanted lid lock release piece, the tip of the lock release lever does not touch the lid when inserting the cassette into the cassette holder, and all cassettes can be The lock release lever can be configured so that it can be inserted smoothly into the holder without causing any discomfort, and the lid lock release piece is sufficiently pressed, eliminating molding errors that may occur when the cassette rattles inside the cassette holder. 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 mounting device of the present invention, when mounting a cassette, the biasing member installed in the middle of the path of movement of the cassette holder biases the lock release lever provided on the cassette halter that holds the cassette. By configuring the lid lock piece to be driven by pressing the lid lock release piece embedded in the lid lock piece that locks the openable lid in the closed state, the cassette can be placed in the cassette holder cleanly without any discomfort. Even if the cassette rattles inside the cassette holder or a cassette with a large molded piece difference is inserted into the cassette holder, you can reliably attach the power center without opening the lid. It can be done, and its practical effects are great.

[Brief explanation of the drawing]

FIG. 1 is an exploded view of a conventional cassette loading device, FIGS. 2 and 3 are sectional views of the same essential parts, FIG. 4 is an exploded view of a cassette loading device according to an embodiment of the present invention, and FIG. FIG. 6 is a sectional view of the main part. 1...Lid, 2...Cassette, 7...
...Lid lock piece, 1o...Lid lock release piece, 21...Cassette holder, 22...
...Lock m excluded L//<-, 26...Biasing member. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] A cassette holder that includes a cassette having an openable/closable lid, a lid lock piece for locking the lid in a closed state, and a lid lock release piece implanted in the lid lock piece, and that holds the cassette when the cassette is installed. A biasing member installed in the middle of a path through which the cassette holder moves urges a lock release lever provided on the cassette holder to press the lid lock release piece, thereby driving the lid lock piece. A cassette loading device characterized by: