JPH01300458A - Lid opener for tape cassette in tape recorder - Google Patents

Abstract

PURPOSE:To reduce the height of a tape recorder by suppressing the amount of descent of a tape cassette to open a lid less than a stroke to open the lid. CONSTITUTION:When the tape cassette A descends, the lower end of the lid A1 is brought into contact with the upper end 4b of an opening piece 4, however, the lid A1 presses the lower end of the lid A1 in a direction to open it since the upper end 4b is formed in an oblique plane, and half-opens the lid. After that, the one end 1a of a press-down piece 1 is pressed by the cassette A, and the press-down piece 1 turns against a spring 3, and presses up the openiong piece 4, then, the lid A1 is opened. Therefore, it is possible to reduce the amount of descent of the tape cassette A to open the lid A1 by ascending an opening member 4. In such a way, the entire height of the tape recorder can be lowered.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention covers the tape draw-out surface of a tape cassette for dental audio or 8 mm video, etc. The present invention relates to an improvement in a tape cassette lid opening device in a tape recorder for opening the tape cassette when the tape cassette is set in the device.

[Conventional technology]

In the conventional tape cassette slit opening device in this type of chief coater, an opening piece that contacts the slit is fixedly installed in the path where the tape cassette descends in order to set the tape cassette in the tape drive device of a tape recorder. .

Then, when the tape cassette descends to be set in the tape drive device, the lower end of the slit comes into contact with the opening piece, and as the tape cassette descends, the lid rotates and opens, and the tape draw-out surface is opened. This allows the tape to be pulled out.

[Problem to be solved by the invention]

In the tape cassette lid opening device in the tape recorder described above, the opening piece is fixedly provided, so the amount of descent of the tape cassette is equal to the distance required to open the lid.
The amount of descent required is more than that.

However, in car-mounted tape recorders and the like, although there is a demand for the height of the tape recorder to be as low as possible, there is a drawback that the height is higher than the opening stroke of the lid.

The present invention solves the above-mentioned problems of the conventional tape recorder of this type, and makes it possible to reduce the height of the tape recorder by suppressing the amount of descent of the tape cassette to open the lid to less than the stroke for opening the lid. The primary purpose is to

A second purpose is to apply a forward force to the tape cassette when opening the lid, thereby preventing the tape drive device from being misaligned due to the tape cassette moving backward.

Furthermore, a third object is to allow the lid to be opened smoothly.

[Means to solve the problem]

The present invention relates to a lid opening device for a tape cassette in a tape recorder that achieves the above-mentioned object, and in which a lid opening device for a tape cassette is pressed by a pressing member when the tape cassette is lowered.
By raising the opening member that pushes up the lid, the amount of descent required to open the lid of the tape cassette is reduced.

It is preferable that the surface of the opening member that contacts the lid is tapered forward and downward, and that guide means is provided for guiding the opening member upward and forward when it is raised.

[For production]

In the lid opening device for a tape cassette in a tape recorder of the present invention, when the tape cassette is lowered to be set in a tape drive device, the pressing member is pressed down, and the lowering causes the opening member to rise.

As the opening member rises, it comes into contact with the lid of the tape cassette, and as the tape cassette descends, the lid rotates to open the lid.As the opening member rises, the amount of descent of the tape cassette required to open the lid is can be made smaller.

The taper of the surface of the opening member in contact with the lid causes a forward component of force on the lid, thereby preventing the tape cassette from retreating.

Furthermore, the opening member moves forward and upward in conjunction with the forward movement of the lid to rotate about the fulcrum, thereby facilitating the opening operation.

〔Example〕

Next, an example of implementation of the present invention will be described with reference to the drawings.

In the drawing, A is a tape cassette, and on the front side,
A tape wound around a reel is stretched, and a lid A1 is rotatably provided around a fulcrum A2 to cover the stretched tape.

A slider A3 is slidably provided on the bottom surface of the tape cassette in order to prevent the tape from being exposed and soiled or sagging due to the opening of the slit A1.

When this tape cassette is inserted into a tape recorder for playing or recording a tape, it is first loaded in the horizontal direction, the slider A3 is slid backward, and the long lid A1 is released.

Next, the tape cassette A is loaded downward to be set in the tape drive device.

During this downward movement to the tape cassette, the tape force is set)
A push-down piece 1 that contacts the bottom surface of A is rotatably attached to a shaft 2, and a spring 3 is mounted to upwardly bias one end 1a that contacts the bottom surface of A when the tape force is applied.

An opening piece 4 is pivotally attached to the other end 1b of this push-down piece I with a shaft 5, and an arcuate hole 4a of the opening piece 4 fits into a pin 6.
When the opening piece 4 rises, the arcuate hole 4a is guided by the pin 6, and the upper end 4b of the opening piece 4 moves diagonally upward and forward.

The upper end 4b has a tapered surface with a lowered front end, and this upper end 4b is in contact with the lower end of the lid A.

Therefore, as mentioned above, when tape cassette A descends,
The lower end of the lit A1 touches the upper end 4b of the opening piece 4, but since the upper end 4b is an inclined surface, the lower end of the lit A1 is pushed in the direction in which the lid A is opened, making it half open.

Thereafter, one end 1a of the push-down piece 1 is pushed by the tape case 7), and the push-down piece 1 rotates against the spring 3 to push up the release piece 4.

Therefore, Lit A will be opened to the state shown in FIG.

When the lid A1 is opened, the lower end of the lid A1 moves forward, causing friction resistance between the upper end 4b of the opening piece 4 and the upper end 4b. and move forward.

Therefore, the upper end 4b, ll! : The sliding movement between the lid A1 and the lower end can be zero or slight, and the lid Δ1 can be opened in a slow manner.

In addition, since the upper end 4b of the opening piece 4 is a tapered surface, a force is generated that pushes the lid A1 forward, preventing the tape cassette A from retreating, and the tape of the tape cassette is pushed against the guide roller that pulls out the tape. This prevents the tape cassette from being misaligned, such as the tape being bent when it hits the top surface.

〔Effect of the invention〕

As described above, in the present invention, the lowering of the tape cassette and the rise of the opening member associated with the lowering combine to open the opening of the date cassette, thereby reducing the amount of descent of the tape cassette to open the opening. can do.

Therefore, the total height of the tape recorder can be lowered by the amount of lowering, and the digital
It becomes possible to mount an audio tape recorder on a car dash board.

It is also effective in adapting to integrated portable cameras such as 8mm video tape recorders.

Further, the tape cassette can be reliably set in the tape drive device without any failure, and the lid can be opened smoothly.

[Brief explanation of the drawing]

FIG. 1 is a side view of an embodiment of the present invention before the tape cassette is lowered, and FIG. 2 is a side view of the tape cassette after the tape cassette is lowered and the lid is opened. A... Tape cassette, A1. Lid, 1... Pressing piece, 4... Opening piece, 4a... Arc-shaped hole, 4b... Upper end, 6... Pin.

Claims (1)

[Claims] 1. A push-down member that is pressed down when the tape cassette is lowered to set the tape cassette in the tape drive device of the tape recorder, and a push-down member that rises in conjunction with the push-down of the push-down member to push up the lid of the tape cassette. 1. A tape cassette lid opening device for a tape recorder, comprising: a lid opening member for opening the lid of a tape cassette in a tape recorder. 2. The lid opening device for a tape cassette in a tape recorder according to claim 1, wherein the contact surface of the opening member that contacts the lid of the tape cassette and pushes it up is a tapered surface with the front side descending. 3. The tape cassette lid opening device for a tape recorder according to claim 1, further comprising guide means for moving diagonally upward and forward the opening member that rises to open the lid of the tape cassette.