JPS5932072Y2 - Rotation detection device for cassette tape recorder - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a cassette tape recorder.

In particular, the present invention provides a device suitable for detecting the rotational state of a reel shaft using a sense of touch.

In a cassette type tape recorder, the running state of the tape can be determined by observing the rotational state of the reel shaft through a transparent window formed in the cassette holder or opening/closing lid.

However, if the user is blind, it is impossible to know the running state of the tape using this method.

Utility Model Publication No. 46-20523 is a technology that improves this point.
There is a method of detecting the rotational state of the reel shaft using a tactile sensation, as disclosed in the above publication.

The device disclosed in Japanese Utility Model Publication No. 46-20523 allows the user to touch the detection metal fitting provided at the upper end of the reel shaft, but even if a blind person were to touch the detection metal fitting, If you do not know the position of the reel axis, there is a risk that you may press down on the top of the cassette with your fingers.
As a result, unless the cassette is firmly held, the cassette moves and adversely affects the running of the magnetic tape.

In addition, it took time and effort to find out where the detection metal fittings were located.

The present invention provides a rotation detection device that completely solves these problems, and will be described below with reference to embodiments shown in the drawings.

The drawings are all side sectional views of the main parts of the device of the present invention, with FIG. 1 showing the non-playing state and FIG. 2 showing the playing state.

In the figure, 1 is the main body of the tape recorder, 1 is the fixed board 3
The cassette holder L is rotatably attached to the cassette holder L, and a recess 5 for guiding finger insertion is formed in the upper surface 4 of the cassette holder L.

Reference numeral 6 denotes a reel shaft rotatably attached to the fixed substrate 3, and a rotation detecting member I that rotates together with the reel shaft 6 is provided at its upper end.

The rotation detecting member 7 is configured to project slightly into the recess through an opening formed at the bottom of the recess 5 when the cassette holder 2 is rotated to the playing position shown in FIG.

8 is a cassette, 9 is a reel stand, and 10 is a positioning pin.

The operation of the device of the present invention constructed as above will be explained.

After the cassette holder 2 is rotated to the position shown in FIG. 1, the cassette 8 is inserted into the holder 2.

When the cassette holder 2 is rotated in this state, it becomes the state shown in FIG.
The rotation detecting member γ provided at the upper end is located between N5. It protrudes slightly through the opening inward.

When the user performs operations such as playback, fast forwarding, and rewinding, the reel shaft 6 rotates. At this time, the rotation detecting member 7 projected into the recess 5 also rotates, so that the user can When the user inserts a finger along the inner wall of the cassette, the fingertip is inevitably guided onto the rotation detection member I, and the user can insert the finger into the rotation detection member 7 without touching the cassette.
It is possible to know 0 rotation by touch and detect the state of 60 rotations of the reel shaft.

As explained above, the rotation detection device of the present invention is used in a cassette type tape recorder which is rotatably attached to a fixed substrate and is equipped with a cassette holder that is movable between a non-playing position and a playing position. a rotation detecting member provided at the upper end of the reel shaft to rotate together with the reel shaft; a finger insertion guide recess formed on the upper surface of the cassette holder; and the rotation detecting member when the cassette holder is in a playing position. and an opening formed at the bottom of the recess to allow the rotation detecting member to protrude slightly into the recess. Since the device is configured so that the cassette can be detected without touching the cassette by the tactile sensation of the finger guided above, when the user inserts the finger into the recess while the cassette holder is in the playing position, the fingertip will be inserted into the recess. The rotation detecting member, that is, the rotation state of the reel shaft can be easily detected by the hand and fingers. be.

According to the present invention, since the rotation detection member is configured to protrude slightly into the recess, there is no need to worry about pressing down on the cassette with fingers when detecting rotation, and at the same time, if a book or notebook is placed on the cassette holder, It is possible to provide a rotation detection device for a tape recorder that has excellent operability and safety required for blind people, without worrying that the rotation of the reel shaft or rotation detection member will be hindered even when stacked, and has great practical value. It is expensive.

[Brief explanation of drawings]

Each of the drawings is a side sectional view of the main part of the device of the present invention, with FIG. 1 showing the non-playing state and FIG. 2 showing the playing state. 1°゛°°°°Te-pre-coder body, 2...
Cassette holder, 3... Fixed board, i...
...Recess, 6...Reel shaft, I...
Rotation detection member, 8...Cassette.

Claims (1)

[Scope of utility model registration request] In a cassette type tape recorder equipped with a cassette holder which is rotatably attached to a fixed substrate etc. and is movable between a non-playing position and a playing position, the tape recorder is provided at the upper end of the reel shaft to rotate together with the reel shaft. a rotation detection member formed on the upper surface of the cassette holder, a recess for guiding finger insertion formed on the upper surface of the cassette holder, and a recess for allowing the front phase rotation detection member to slightly protrude into the recess when the cassette holder is in the performance position. and an opening formed at the bottom, and when the tape is driven, the rotation of a rotation detection member protruded into the recess through the opening is detected by touching the cassette with the tactile sense of a finger guided over the rotation detection member by the recess. A rotation detection device for a cassette type tape recorder, which is characterized by being able to detect rotation without any rotation.