JPS6098550A - Operation switching device of reciprocating type tape recorder - Google Patents

Abstract

PURPOSE:To simplify the constitution of the titled device without using a specific switching operation knob and to obtain a highly maneuverable operation switching device for a reciprocating type tape recorder by executing switching from the 1st direction to the 2nd direction and switching from the 2nd direction to the 1st direction by an operation knob executing rapid traverse in the 1st and 2nd directions. CONSTITUTION:When the tape recorder is under stopped status, a rotary arm 6 is located on a fast driving position and a switching lever 31 to be operated by a repid traversing operation knob 4 is located on a stop position. If a reproducing operation knob 4 is operated under said status, the rotary arm 6 is displaced to a reproducing driving position and the switching lever 31 is rotated up to the 1st position. When the switching lever 31 is rotated up to the 1st position, the 1st transmission gear 38 is engaged with a main driving gear 20 and the rotation of the main driving gear 20 is transmitted to a gear 27, namely to the 1st reel shaft 25, through the 1st transmission gear 38. Thus, the reproducing operation to the 1st direction is executed. The reproducing operation in the 2nd direction is executed by displacing the operation knob 4 up to the 2nd position shown by the mark B when the tape recorder is in the reproducing operation to the 1st direction.

Description

Detailed Description of the Invention Field of the Invention The present invention relates to a reciprocating tape recorder having a playback function in a first direction and a playback function in a second direction opposite to the first direction. This relates to the operation switching device.

(B) Prior Art Recently, an audio device called a head 7-on stereo, in which the reproduced sound of a magnetic tape can be heard by turning on the head 7, has become popular. The tape recorder incorporated in such an audio device has not only a playback function in the first direction but also a playback function in the second direction, which is the opposite direction to the fourth direction, so that the playback operation can be performed for a long time. Reciprocating tape recorders are common. Such a reciprocating tape recorder is equipped with a playback direction switching control knob for switching the playback direction, in addition to the playback control knob and feed control knob, etc. that are included in a tape recorder having a unidirectional playback function. There is. A tape recorder equipped with such operating heirs for switching the playback direction has the disadvantage that the number of heirs increases, making the structure complex and the operability poor.

E→ Purpose of the Invention The present invention provides an operation switching device for a reciprocating tape recorder that is simple in structure and has excellent operability.

(B) Structure of the Invention The present invention provides a reciprocating tape recorder having a playback function in a first direction and a playback function in a second direction opposite to the first direction. and a fast-forward operating knob for switching the tape recorder between a fast-forwarding state in a first direction and a fast-forwarding state in a second direction, and when the tape recorder is in a stopped state, the fast-forwarding operating knob is When operated, a fast-forward operation is performed in the first direction or the second direction, and when the tape recorder is in the playback state, operating the fast-forward operation knob changes the playback direction of the magnetic tape from the first direction to the second direction, or It is configured so that it can be switched from the second direction to the first direction.

(E) The embodiment drawings are all related to the present invention, and FIG. 1 is an external perspective view of a tape recorder according to the present invention, FIGS. 2 and 3 are plan views showing different states of the drive mechanism, and FIG. The figure is a side view of the main part showing the drive mechanism, and FIGS. 5, 6, and 7 are plan views showing different states of the transmission mechanism. In Figure 1,
(1) is a main body of a tape recorder, and a cassette mounting part (2) into which a cassette tape is mounted is provided on the bottom surface. (3) is a playback operation knob provided on the front surface of the tape recorder main body (1), and (4) is a fast forward operation knob, which is the first position for fast forwarding in the first direction and the stop position. Then, it is configured to be displaced to a second position where rapid forwarding in the second direction is performed. (5) is the successor of the stop operation that is operated when the tape recorder is in the operating state and puts the tape recorder in the stop state.

Although the operating system according to the present invention is constructed as described above, the drive system will now be explained with reference to FIGS. 2, 3, and 4. In the figure, (6) is a rotating arm which is rotatably attached to a fixed base board (not shown) by a shaft (7) K and which is normally in the high speed drive position shown in FIG. It is constructed so that when the operating knob (3) is operated, the regeneration drive position shown in FIG. 3 is displaced. (8) is a driving gear rotatably attached to the shaft (7) to which the rotating arm (6) is attached, and to which the rotation of an electric motor (not shown) is transmitted; This is a high-speed drive gear that is rotatably mounted on the moving arm (6) by a shaft Q and is always in mesh with the drive gear (8), and is a regenerative drive gear α1.
) are formed in one piece. (121 is a mounting board fixed to the fixed board by screws (13), 04) and α9; α0 is rotatably mounted to the mounting board α by a shaft (17), and the rotating arm (6 ) is in the regeneration drive position, a first drive gear αQ that meshes with the regeneration drive gear α1) is rotatably attached to the shaft (17), and the rotation of the first drive gear (1119) is connected to the clutch. The second drive gear is transmitted through the felt shaft that constitutes the mechanism, and (A) is the main drive gear that is attached to the shaft (17) so as to rotate integrally with the second drive gear α. be.

C2]) is rotatably mounted to the mounting board (one by a shaft) and has a third shaft which meshes with the high speed drive gear (9) when the pivot arm (6) is in the high speed drive position. The third drive gear (c) is a fourth drive which is rotatably attached to the mounting board 02 by a shaft Q and is always in mesh with the second drive gear αQ and the third drive gear (21). The third driving gear (21
) has the function of transmitting the rotation of the second drive gear W.

The drive system is configured in this way, and in the regenerative operation state, the rotation of the electric motor is from the drive gear (8) to the high-speed drive gear (9).
) - Regeneration drive gear Ql) - First drive gear (16) - Felt α Yu - Main drive gear QO via second drive gear OQ
). In addition, in the fast forward operation state, the rotation of the electric motor is as follows: drive gear (8) - high speed drive gear (9) - third drive gear (21) - fourth drive gear (c) - second drive gear 08
) to the main drive gear.

Although the drive system according to the present invention is constructed as described above, the transmission system will be explained next with reference to FIGS. 5, 6, and 7. (c) is a first reel shaft which is rotationally driven during playback operation in the first direction and during fast forwarding operation, and is rotatably attached to the fixed substrate by the shaft (c) and has a gear (27) formed thereon. ing.

(Incorporated) is a second reel shaft that is rotatably driven during playback and fast forwarding operations in a second direction, which is the opposite direction to the first direction, and is rotatably attached to a fixed base plate by a shaft and gears. (30) is formed.

01) is a switching lever that is rotatably attached to the fixed board by a shaft C3'IJ, and is in a first position where rapid forwarding is performed in the first direction by the fast forwarding operation knob (4);
It is moved to a stop position and then to a second position where rapid forwarding in the second direction is performed. (to) is a rotating plate that is rotatably attached to the shaft (26+) to which the first reel shaft (c) is attached, and is an engaging portion 0a formed on the switching lever 01. An engaging piece can is formed that engages with. In such a configuration, when the switching lever C31) is displaced from the stop position shown in FIG. 5 to the first position shown in FIG. When the rotary plate is moved to the second position shown in FIG. They are related to each other so that they can be displaced to a second operating position, which is clockwise about e. 06) is the axis C37) on the fixed board.
is an intermediate gear rotatably mounted by
It is meshed with a gear formed on the second reel shaft. (to) is a first transmission gear which is rotatably mounted on the rotary plate Q by a shaft 09 and meshed with a gear 0η formed on the first reel shaft (c); , the rotating plate (c) is configured to mesh with the main drive gear when it is in the first operating position. (40) is a second transmission gear rotatably mounted on the rotary plate Q by a shaft (4I), and when the rotary plate Q is in the second operating position, the main drive gear (20)
and intermediate gear 06).

The operating system, drive system, and transmission system according to the present invention are configured as described above, but when the regeneration operating knob (3) is operated from the stopped state, the switching lever 01) is rotated from the stopped position to the first position. It is designed to be forced. In addition, the switching lever 0υ is configured to be locked and held in the first position, stop position, and second position by a click mechanism, etc., and can be displaced to each position by operating the fast-forward operation heir (4). It is designed to be forced. When the regeneration operation knob (3) is in the operating position, even if the fast forward operation knob (4) is operated, the regeneration operation knob (3)
) cannot be returned to the non-operating position. Further, if a stop operation is performed in each operating state, the reproduction operation knob (3) is returned to the non-operation position, and the fast forward operation knob (4) is returned to the stop position.

The present invention is constructed as described above, and its operation will now be explained. When the tape recorder is in a stopped state, the rotary arm (6) is in the high-speed drive position shown in FIG. (4) Switching lever Gυ operated by
is in the stop position shown in FIG. In this state, when the user operates the regeneration operation knob (3), the rotating arm (6) is moved to the regeneration drive position shown in FIG. 3, and the switching lever 01) is moved to the position shown in FIG. It is rotated to the first position shown. Further, with such a reproducing operation, the magnetic head comes into contact with the magnetic tape, the pinch roller is pressed against the capstan, and power is supplied to the electric motor. The regeneration operation is configured in this way, but the rotation from the electric motor is from the drive gear (8) to the high-speed drive gear (9).
It is transmitted to the main drive gear through the regeneration drive gear αυ, the first drive gear (161-fer) Ql, and the second drive gear H, and the main drive gear is rotated at low speed in the direction of the arrow. When the switching lever Gυ is rotated to the first position, the first transmission gear is in mesh with the main drive gear, so the rotation of the main drive gear is as follows. It is transmitted to the gear (27), ie, the first reel shaft (E), via the first transmission gear. In this manner, the rotation of the electric motor is transmitted to the first reel shaft (c), resulting in a reproducing operation in the first direction. Since the switching lever Gυ is in the first position when the playback operation is in the first direction, the fast-forward operation knob (4) attached to the switching lever OI) is in the position of the tape recorder main body (1). It is located on the symbol (5) side provided on the front. Therefore, the user must press the fast-forward operation knob (4) to rotate the symbol.
It can be recognized that the reproducing operation in the first direction is being performed by the position of . The reproducing operation in the first direction is performed in step 5, and next, the reproducing operation in the second direction, which is the opposite side of the first direction, will be explained. In such a playback operation in the second direction, the tape recorder
When in playback mode in the direction, press the fast-forward operation knob (
4) is carried out by causing a second position trap displacement indicated by symbol (5). When the fast-forward operating knob (4) is moved toward the symbol (B), the switching lever Gυ is rotated counterclockwise about the axis C33, resulting in the state shown in FIG. 7. When the switching lever (31) is in the second position shown in FIG. Therefore, the main drive gear (
The rotation of the gear (to) is transmitted to the gear (to), that is, the second reel shaft (28), via the second transmission gear frame and the intermediate gear (to).

As a result of the rotation of the electric motor being transmitted to the second reel shaft in this manner, a reproducing operation is performed in the second direction, but needless to say, the magnetic head and pinch roller are also switched to the opposite direction at the same time. When in the state of playback operation in the second direction, the fast-forward operation knob (4) attached to the switching lever C31) is positioned on the symbol (B) side, so the user can It is useful to recognize that the regeneration operation is being performed. In this way, when the reproduction operation is being performed in the first direction, the operation of switching the reproduction direction to the second direction is performed, but the operation of switching the reproduction direction from the second direction to the first direction is also performed in the same manner. Therefore, its explanation will be omitted. Also, when the tape recorder is in the playback state in the first direction or the second direction, the stop operation knob (
5), the playback operation knob (3) is returned to the non-operating position and the fast forward operation knob (4) is moved to the fifth position.
It is returned to the stop position shown in the figure.

As described above, when the playback operation knob (3) is in the operating position, when the fast forward operation knob (4) is moved to the first and second positions, the tape recorder starts playing in the first and second directions. Although it is in the operating state, when the fast-forward operation knob (4) is placed at the stop position, both the first transmission gear (to) and the second transmission gear are shifted from the main drive gear (to), as shown in Fig. 5. become separated. Therefore, the rotation of the main drive gear (A) is not transmitted to the first reel shaft (251) and the second reel shaft, and in this state, the pinch roller
By moving the tape recorder away from the capstan, the tape recorder can be put into a pause state. When in such a paused state, move the fast-forward operation knob (4) to the first or second position.
Once the position is displaced, the reproducing operation in the first direction or the second direction can be started again.

Although the playback operation is performed as described above, next we will explain the fast-forward operation.Such a fast-forward operation is performed by operating the fast-forward operation knob (4) when the tape recorder is stopped. The fast forwarding operation in the first direction will be explained.

When the fast-forward operation knob (4) is placed in the first position, that is, on the symbol (Al side) when the tape recorder is in a stopped state, the switching lever 0υ is rotated to the position shown in FIG. The moving plate (33) is rotationally displaced, and the rotating plate (33
The first transmission gear mounted on the main drive gear (
A) is engaged. In addition, in such a fast-forwarding state, the rotating arm (6) is in the high-speed drive position shown in FIG. ) - 4th drive gear (c) -
It is transmitted to the main drive gear eυ via the second drive gear H, and the main drive gear (20) is rotated at high speed in the direction of the arrow. When the switching lever c31) is rotated to the first position, the first transmission gear (c) is in mesh with the main drive gear (2), so the rotation of the main drive gear (2) is The rotation of the electric motor is transmitted to the first reel shaft (C2) through the first transmission gear (2).
A fast forward motion in the direction will be performed. While the fast-forward operation in the first direction is being performed, the fast-forward operation is canceled by operating the fast-forward operation knob (4) to the stop position or by operating the stop operation knob (5). The tape recorder will stop.

As described above, the fast forward operation in the first direction is performed, but next, the fast forward operation in the second direction will be explained. Such fast-forwarding operation in the second direction is performed by positioning the fast-forwarding operation knob (4) to the second position, that is, to the side of the symbol when the tape recorder is in a stopped state. When the fast-forward operation knob (4) is moved to the symbol (B) side, the switching lever 01) is rotated to the position shown in Fig. 7, and as the rotating plate is displaced, the second transmission is The gear (40) is brought into mesh with the main drive gear (20) and the intermediate gear (36). In the fast forward operation state, as described above, the rotation of the electric motor is transmitted to the main drive gear (a) at high speed, and the rotation of the main drive gear (20) is transmitted via the second transmission gear and the intermediate gear (a). It is transmitted to the gear (a)), that is, the second reel shaft (c). With this pressure, the rotation of the electric motor is controlled by the second reel shaft (
As a result, a fast forward operation in the second direction is performed.

or displacing the fast-forward operating heir (4) to the stop position while the fast-forward operation in the second direction is being performed;
When the stop operation knob (5) is operated, the fast-forward operation is canceled and the tape recorder is brought to a halt.

(f) Effects of the Invention The operation switching device of the present invention switches from a first direction to a second direction opposite to the first direction and from the second direction to the first direction. Since this is done by the fast-forward operation knob that performs the fast-forward operation in both the direction and the second direction, there is no need to provide a special operation knob for switching the playback direction, and the present invention has a simple configuration and excellent operability. It is ideal as an operation switching device for reciprocating tape recorders.

[Brief explanation of drawings]

The drawings all relate to the operation switching device of the present invention; FIG. 1 is an external perspective view of a tape recorder according to the present invention, FIGS. 2 and 3 are plan views showing different states of the drive mechanism, and FIG. A side view of the main parts without showing the drive mechanism, Fig. 51. Figures A6 and 7 are plan views showing different states of the transmission mechanism. Explanation of the main drawing numbers (3)...The heir of the playback operation, (4)...The fast forward operation knob, (5)...The heir to the stop operation, (6)...
・Rotating arm, (8)... Drive gear, (9)...
High-speed drive gear, Qll... Regeneration drive gear, 0
Success...Mounting board, α6)...First drive gear, 0
81-...Second drive gear, (2α...Main drive gear,
(21)...Third drive gear, (C)...Fourth drive gear, (C)...First reel shaft, (C)...Second
Reel shaft, c31)...Switching lever, (c)...
Rotating plate, (361... intermediate gear, gear... first transmission gear, 140)... second transmission gear. Figure 1 Figure 2 Figure 3 Figure 4 @5 Figure 6

Claims (1)

[Claims] (1) In a reciprocating tape recorder having a playback function in a first direction and a playback function in a second direction opposite to the first direction, a playback operation knob that puts the tape recorder into a playback state, and a tape It consists of a fast-forward operating knob that switches the recorder between a fast-forwarding state in a first direction and a fast-forwarding state in a second direction, and when the tape recorder is in a stopped state, when the fast-forwarding operating knob is operated, When fast-forward operation is performed in two directions, and the tape recorder is in the playback state, operating the fast-forward operation knob changes the playback direction of the magnetic tape from the first direction to the second direction, and from the second direction to the first direction. 1. An operation switching device for a reciprocating tape recorder, characterized in that the operation can be switched to