JPH0450629Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an improvement of a locking device for a cassette storage door in a cassette tape recorder.

[Prior Art] Conventionally, in a cassette tape recorder having a cassette storage door provided with a cassette half storage section, a cassette half is stored in the cassette storage section, and the cassette half is fixed in the storage area during playback or recording operation. Therefore, a structure has been adopted in which the cassette storage door is locked to prevent it from opening.

For example, as shown in FIG. 4, 1 is a cassette storage door forming a cassette half storage section 7;
It is composed of a transparent plate such as an acrylic plate, or a transparent plate forming a transmission window is arranged in the center thereof, and the arm portion 12 formed at the lower end of the storage member 11 forming the storage section 7 is connected to the chassis. It is rotatably supported on the shaft.

Reference numeral 2 designates a lock pin erected on one side of the storage member 11, and the storage door 1 is locked by engagement between the pin 2 and a lock lever 3 rotatably fixed to a chassis or the like.

In the figure, 4 is a front plate, 5 is a front angle which also serves as a shielding function, forming a storage section 8 for storing the storage door 1, and 6 is a cassette half to be stored in the cassette half storage section 7. be.

In the above configuration, when an eject button (not shown) is pressed, the lock lever 3 rotates so that its tip moves upward, and disengages from the lock pin 2.

Then, the storage door 1 is rotated forward about the pivot portion by an appropriate driving means (not shown) such as a spring, hydraulic pressure, or pneumatic pressure, and the cassette half 6 can be taken out or stored.

Thereafter, when the storage door 1 is pressed against the driving force and rotated toward the storage position, the lock pin 2 is engaged with the lock lever 3 and locked.

[Problems to be Solved by the Invention] In the above configuration, when pressing with a finger or the like to store the storage door 1, the left or right end portion of the storage door 1 is often pressed.

There is no problem with the locking operation when pressing the side of the storage door 1 where the locking device is located, but there is a problem when pressing the opposite side (indicated by the arrow in the figure).

That is, since the pressing force is deviated to the left side, the storage door 1 is twisted as shown in FIG. 5, and the lock pin 2 and the lock lever 3 cannot be engaged unless the left end is pressed beyond a predetermined stroke (overstroke). do not have.

If the rigidity of the storage door 1 is large, the torsion will be small and the overstroke will be small. However, if the rigidity cannot be increased due to the material and shape of the storage door 1 or the material and shape of the central transparent plate, is large, which requires a large amount of overstroke, which impairs the operating feel.
Further, the overstroke amount is limited by the distance between the storage member 11 and the front angle 5 (at most 3
mm), so if the amount of twist is greater than the amount of overstroke, locking operation may not be achieved.

[Means for Solving the Problem] This invention includes a rotatable storage door forming a cassette half storage area in which the set half is to be stored;
In a cassette tape recorder having a storage door storage section and a lock device formed on one side of the cassette half storage member for locking the storage door in the storage section, In the cassette storage door locking device, a locking piece that engages with the edge is formed in the storage door storage portion close to the short edge.

[Operation] With the above configuration, one end edge of the storage door is locked, and by using the locking part as a fulcrum and pressing the part of the storage door near the fulcrum, the other end edge is moved using the principle of leverage. Corrects the twist of the lock and provides a reliable locking action.

[Example] This invention will be described below with reference to examples.

In Fig. 1, 1 is the cassette half storage section 1.
This is a cassette storage door with a transparent plate such as an acrylic plate, or a transparent plate forming a transparent window in the center thereof, and a cassette storage door with a transparent plate formed at the lower end of the storage member 11 forming the storage section. The formed arm portion 12 is rotatably supported by a chassis or the like.

Reference numeral 2 designates a lock pin erected on one side of the storage member 11, and the storage door 1 is locked by engagement between the pin 2 and a lock lever 3 rotatably fixed to the chassis.

Reference numeral 5 denotes a front angle which also serves as a shielding function, and forms the storage part 8 of the storage door 1, and the lock mechanism 2, 3 is attached to one edge of the storage door 1 (the left edge in the figure) on the inner wall. A locking piece 51 is formed on which the end edge opposite to the side on which the locking piece 51 is to be locked is formed.

The locking piece 51 is such that the storage door 1 is 1 mm from the front plate 4.
They are arranged at such intervals that they engage when pushed in.

Further, in the figure, 6 is a cassette half to be stored in the cassette half storage section 7.

In the above configuration, when an eject button (not shown) is pressed, the lock lever 3 rotates so that its tip moves upward, and disengages from the lock pin 2.

Then, store the cassette half in the storage section 7,
When the storage door 1 is rotated by pressing the left side portion (indicated by an arrow in the figure) of the storage door 1, the storage door 1 and the locking piece 51 engage with each other after an overstroke of about 1 mm.

Then, when the above part is further pressed, the storage door 1
The locking portion of the locking piece 51 is used as a fulcrum, and a force point, which is a pressing point, is generated on the right side of the fulcrum, so that the right side of the storage door 1 rotates so as to correct the twist that occurred during the rotation, and as a result, the lock pin 2 and the lock lever 3 can be smoothly engaged.

[Effects of the invention] According to the invention explained above, the twisting of the storage door can be corrected by utilizing the principle of levers by using the extremely simple structure of erecting a locking piece on the inner surface of the front angle, and it can be made smoothly. Since it can exhibit a locking action, it has the effect of greatly increasing the degree of freedom in selecting the material and shape of the storage door or the central transparent plate.

[Brief explanation of the drawing]

1 and 2 are respectively a side view and a top view of the device according to the invention, FIG. 3 is a top view showing the operation of the device according to the invention, and FIGS. 4 and 5 are
The figures are a side view and a top view of this conventional device, respectively. 6 is a cassette half, 7 is a cassette half storage section, 1 is a storage door, 8 is a storage door storage section, 11 is a cassette half storage member, 2 and 3 are lock devices, 51
8 is a locking piece, and 8 is a storage door storage section.

Claims (1)

[Scope of utility model registration request] A rotatable storage door 1 forming a cassette half storage part 7 in which the cassette half 6 is to be stored, a storage door storage part 8 in which the storage door 1 is to be stored in a case, and a storage door in the storage part 8. In a cassette tape recorder having a locking device 2, 3 formed on one side of the cassette half storage member 11 for locking the storage door 1, the locking device 2, 3 is engaged with the short edge of the storage door 1 on the opposite side where the locking device 2, 3 is disposed. A locking device for a cassette storage door, characterized in that a matching locking piece 51 is formed in the storage door storage section 8 adjacent to the short edge.