JPH031402Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lid opening device that can simplify the structure and reduce costs without impairing the operability of opening and closing the lid.

2. Description of the Related Art Conventionally, for example, there is a compactly designed cassette tape recorder as shown in FIG. In the figure, 1 is a cassette tape recorder main body, and a cassette chamber 2 is provided in the front of this main body 1. A lid 3 is supported in the cassette chamber 2 so as to be openable and closable, and usually the lid is elastically locked by some method. Finger hooks 4 are formed on both sides of the lid body 3 so that the lid body 3 can be opened by pinching with the thumb and other fingers. Here, 5 is a sound emitting hole for a speaker provided on the front side of the tape recorder main body 1, and 6 is an operation lever for various modes (recording, playback, stop, rewind) provided on the right side of the main body 1.

However, in this case, both hands are occupied in order to support the main body 1 with one hand and pull the lid 3 forward to open it while holding both sides of the lid 3 with the other hand. Therefore, when loading a cassette into the cassette chamber 2, the lid 3 must be opened once and the cassette must be loaded with the hand that opened the lid, which makes the operation complicated.

To solve this problem, as shown in FIG. 2, a push-button type eject operation button 12 is provided on the side surface of the cassette tape recorder main body 11, and an eject button (not shown) is provided in response to the push operation of the eject device button 12. There is a lid opening device which opens the lid 13 by pressing a lever against one end of the lid 13 of the cassette chamber provided on the front of the main body 11. Here, 14 is a sound emitting hole for a speaker provided on the front of the main body 11, and 15 is an operation section for various modes (recording, playback, rewind, stop, etc.) provided on the right side of the main body 11.

Further, as shown in FIG. 3, a sliding eject operation button 22 is provided on the side surface of the cassette tape recorder main body 21, and in response to the sliding operation of the eject operation button 22, an eject lever (not shown) is attached to the front of the main body 21. There is a lid opening device which opens the lid 23 by pressing against one end of the lid 23 of a provided cassette chamber. Here, 25 is an operation section for various modes (recording, playback, rewind, stop, etc.) provided on the front of the main body 21.

However, these lid opening devices have an eject operation button 12 near the cassette lid 13 or 23.
or 22 exposed, and a complicated mechanism must be provided to transmit the pressing or sliding force applied to these eject operation buttons 12 or 22 to the eject lever, which complicates the configuration and makes it difficult to reduce costs and reduce costs. This is disadvantageous in promoting downsizing.

The purpose of this invention is to provide a lid opening device whose structure can be simplified and the cost and size can be reduced without impairing the operability of the device.

An embodiment of this invention will be described below with reference to the drawings. FIG. 4 shows an example in which this invention is applied to a small cassette tape recorder. In the figure, reference numeral 31 denotes a casing, that is, a tape recorder main body formed in a vertically elongated manner, and this main body 31 has a cassette chamber in which a cassette is loaded in the front thereof arranged in a vertically long direction along the longitudinal direction of the main body 31. A lid 32 formed into a substantially L-shape by bending one side edge is supported in this cassette chamber so as to be openable and closable. In the illustrated example, the corner portion of the lid 32 is supported along one longitudinal side edge of the main body 31 by a support portion (not shown), such as a support shaft, so that the lid 32 is configured to be freely rotatable. In this illustrated example, a protruding finger hook 33 that protrudes from the upper surface of the lid 32 by a predetermined height is formed along the corner of the lid 32, that is, along one side edge along the support portion of the lid 32. do. Here, 34 is a sound emitting hole for a speaker used on the front of the main body 32, and 35
36 is an operation section for various modes (recording, playback, rewind, stop, etc.) provided on the right side of the main body 31;
is a power switch provided on the right side of the main body 31. Although not shown in the figure, a toggle spring is attached to the lid 32.

Next, the operation of this invention will be explained. Now, the lid body 32
In order to open the cassette tape recorder main body 31 as shown in FIG.
That is, when a pressing force is applied from a direction parallel to the upper surface of the lid 32, the lid 32 rotates counterclockwise about the support shaft. When the lid 32 rotates to a certain extent, it reaches a point where the biasing force of the toggle spring is reversed, and this reversed biasing force causes the lid 32 to further rotate counterclockwise.

Therefore, with this configuration, the lid 32 can be easily opened using the thumb of the hand holding the tape recorder main body, so the operability of opening and closing the lid 32 is not impaired, and the structure is simplified. Therefore, cost reduction and size reduction can be achieved.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

For example, in the above embodiment, one side edge of the lid was bent to form a substantially L-shape, but in this invention, as long as the lid has a shape that can be rotatably supported, the lid may be made into a planar shape, for example. You can also do that. Furthermore, this invention can be applied to devices other than cassette tape recorders.

As described above, the lid opening/closing device of this invention includes a rotatable lid that is supported along one side edge of a main body by a supporting part and that opens and closes a predetermined part of the main body; a finger rest provided on one side edge along the support part of the lid so as to protrude by a predetermined height from the upper surface of the lid, and capable of opening the lid by receiving a pressing force from a direction parallel to the upper surface; and a toggle spring that is attached to the lid and applies a predetermined rotational force to the lid.

Therefore, since the lid can be opened directly by finger operation, there is no need for a member interposed between the operating section and the lid as in the conventional case, and the structure can be simplified and costs can be reduced.

Furthermore, since the finger hook is provided on one side edge of the lid along the support, the lid will not be opened inadvertently even if a pressing force is applied to the top surface of the lid.

Furthermore, since a toggle spring is attached to the lid, the lid automatically opens after the initial pressing operation on the finger rest. The lid can be closed by an initial action of lightly pressing the top surface.

In other words, the lid can be opened simply by applying a small stroke to the finger grip from a direction parallel to the top surface of the lid, or in other words, by slightly moving the finger horizontally and applying force to the finger grip. Since the lid can be opened with the finger on the side supporting the lid, operability is improved.

[Brief explanation of the drawing]

Figures 1 to 3 are perspective views showing different conventional lid release devices, Figure 4 is a perspective view showing an embodiment of this invention, and Figure 5 is a perspective view for explaining the embodiment. be. 1... Cassette tape recorder body, 2... Cassette chamber, 3... Lid, 4... Finger rest, 5...
Sound emission hole for speaker, 6... Operation lever, 11, 2
1...Cassette tape recorder body, 12, 22
... Eject operation button, 13, 23 ... Lid body, 1
4, 24...Speaker sound emitting hole, 15, 25...
Operation unit, 31... Tape recorder main body, 32...
Lid body, 33...Finger hook portion, 34...Speaker sound emitting hole, 35...Operation unit, 36...Power switch.

Claims (1)

[Scope of claim for utility model registration] Supported along one side edge of the main body by a supporting part,
a rotatable lid that opens and closes a predetermined portion of the main body; and a lid protruding from the upper surface of the lid by a predetermined height on one side edge of the lid along the supporting portion; It is characterized by comprising: a finger hook that allows the lid to be opened by receiving a pressing force from a parallel direction; and a toggle spring that is attached to the lid and applies a predetermined rotational force to the lid. Lid opening/closing device.