JPS6323830Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tape cassette storage lid opening/closing device for an electrical device such as a cassette deck, which automatically opens the storage lid by operating a lock release button, and protects the lid from opening impact. It provides a buffer.

A conventional device of this type will be explained with reference to FIG. 1, which is a partially cutaway perspective view of the main part. For example, the external appearance is formed by an upper case 1 having a part (not shown) for storing a tape cassette, and a lower case 2 for storing built-in components, and approximately tape is formed on the upper surface of the part of the upper case 1 for storing the tape cassette. A cassette-sized opening 3 is provided, and a semicircular bulge 4 is formed integrally with the upper case 1 inside the upper case 1 along one side edge 3' of the opening 3. A curved extension piece 6 corresponding to the shape of the bulge piece 4 is provided at a position corresponding to the bulge piece 4 of the tape cassette storage lid 5. engage the
One end was pressed into contact with a plate spring 9 having a curved portion similar to that of the curved extension piece 6 screwed to the boss 7 with a screw 8.

Therefore, when opening the tape cassette storage lid 5, place your finger on the protruding piece 10 provided on the top surface.
I had to open it by hand. Further, providing a protruding piece on the lid is not preferable from the standpoint of protecting the lid from impact.

The present invention eliminates the above-mentioned drawbacks and aims to enable the storage lid to be opened only by operating the lock release button.
An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. First, 1 to 8 are the same as in Figure 1,
10 is an elastic leaf spring, one end of which is screwed 8.
It is screwed onto boss 7. The curved shape of the portion 11 of the leaf spring 10 is almost the same as the curve of the curved extension piece 6, and a curved portion 12 is provided at the tip thereof. Further, the length of the leaf spring 10 and the shape of the portion 11 are selected so that when the tape cassette storage lid 5 is closed by the curved portion 12, the leaf spring 10 is always biased upward in the drawing. During closing, a gap α is created between the leaf spring 10 and the curved extension piece 6, as shown in FIG. A smaller number is optimal in terms of auxiliary forces. 13 is a button hole provided in the upper case 1, 14 is a lock release button,
As shown in FIG. 3, it is supported by a branch 15 provided in the upper case 1, and is always urged to the right in the drawing by a spring 16, and a locking piece 17 at the tip thereof.
is engaged with the key portion 18 of the tape cassette storage lid 5.

In the above configuration, when the lock release button 14 is moved to the left in the drawing against the spring 16,
The locking piece 17 and the key part 18 are disengaged. On the other hand, since the tape cassette storage section 5 is always biased upward by the leaf spring 10, it rotates in the direction of the arrow in FIG. 3 and is automatically opened to a certain angle by the biasing force.

Furthermore, when the tape cassette storage lid 2 is opened, the gap α is eliminated, and the leaf spring 10 and the extension piece 6
The tape cassette storage lid 2 is brought into contact with the tape cassette storage lid 2 to perform a braking action when the tape cassette storage lid 2 is opened, and also to prevent it from returning. Furthermore, when it is desired to open the tape cassette storage lid 2, it can be manually rotated to any position. In addition, when closing the tape cassette storage lid 2, it is possible to close it to a certain extent, push the lock release button 14 to the left in the figure with your hand, and release your hand to lock it.

As described above, according to the present invention, the tape cassette storage lid can be opened simply by operating the lock release button due to its simple structure, and the opening impact can be softened by the action of the leaf spring. , its practical effects are great. In particular, according to the present invention, a single elastic leaf spring is configured to provide both a biasing force in the direction of opening the cassette storage lid and a restraining force when opening, and there is no need for many separate parts. It has the advantage of being extremely inexpensive and simple to construct.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of a conventional tape cassette storage lid opening/closing device, and FIG. 2 is a partially cutaway perspective view of a tape cassette storage lid opening/closing device according to an embodiment of the present invention. FIG. 3 is a sectional view of the main part of FIG. 2. DESCRIPTION OF SYMBOLS 1... Upper case, 3... Opening, 4... Swelling piece, 5... Tape cassette storage lid, 6... Curved extension piece, 10... Leaf spring, 12... Curved part, 14...
Unlock button.

Claims (1)

[Scope of utility model registration request] A case having an opening approximately the size of a tape cassette in a part thereof, a semicircular bulge provided inside the case along one side edge of the opening, and a tape cassette storage that covers the opening. a lid, an extension piece provided on one side of the bulge of the tape cassette storage lid, having a curved shape corresponding to the bulge piece and engaged with the bulge piece, and an extension piece on the bulge piece of the case. The tape cassette storage lid has a lock release button which is provided at opposing positions and normally locks the cassette storage lid, and a curved part that corresponds to the shape of a piece with one end fixed and partially extended, and when the tape cassette storage lid is closed. and an elastic leaf spring having a curved portion that urges a portion of the tape cassette storage lid upward, and this elastic spring creates an appropriate gap between the tape cassette storage lid and the extending piece when the lid is closed. The tape cassette storage lid is configured to generate a biasing force in the opening direction through the curved portion, and when the cassette storage lid is opened, the curved portion comes into contact with the extending piece, causing the tape cassette storage lid to close. A tape cassette storage lid opening/closing device characterized in that it is configured to brake rotation of the tape cassette storage lid.