JP2908154B2 - Fast forward and fast rewind device for tape players - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fast-forward / rewind device for a tape player, and more particularly, to a device for meshing a reciprocating switching gear with a flywheel gear and a reel base gear on a driving side.

[0002]

2. Description of the Related Art As shown in FIG. 1, a conventional tape player fast-forward / rewinding device of this type has a pair of reel bases 1,
A pair of reel base gears 3, 4 for rotating the respective 2;
A pair of drive-side flywheel gears 5, 6, a reciprocally movable switching arm 7 which is moved in opposite directions by operating a fast-forward lever and a fast-rewind lever, respectively, and the switching arm 7 is rotatably provided. A pair of switching gears (8, 9) meshing with one of the pair of reel base gears (3, 4) and one of the pair of drive-side flywheel gears (5, 6) by movement of the arm (7) is provided. The arm 7 has a guide groove 1 in the moving direction of the switching arm 7.
0 and 11 are formed, and the guide shafts 1 and
The structure which engages 2 and 13 was adopted.

In this conventional structure, by operating a fast-forward lever or a fast-rewind lever, the switching arm 7 is guided and moved by the guide long grooves 10 and 11 engaged with the guide shafts 12 and 13, and the switching gear is moved. The switching gear 8 meshes with the reel base gear 3 and the flywheel gear 5 by operating one of the gears 8 and 9, for example, the fast-forward lever.
Is rotated in the forward direction in the forward direction, the switching arm 7 is moved in the opposite direction by operating the fast rewind lever, the switching gear 9 meshes with the reel base gear 4 and the flywheel gear 6, and the reel base gear 4 It is designed to be rotated in the rewinding direction of the reverse direction.

[0004]

In the fast-forward / rewind device for a tape player having the above-mentioned conventional structure, when the fast-forward lever or the fast-rewind lever is operated, particularly when the operation is slow, or when the switching gear is engaged. When the operation of the fast-forward lever or the fast-rewind lever is stopped at the point where the point is reached, the flywheel gear is rotating in the direction of the arrow A in FIG. It becomes the arrow B direction, the meshing with the flywheel gear is not performed smoothly, the switching arm stops halfway,
There was a problem that noise was generated when the tooth tips collided.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the switching gear meshes with the flywheel gear at a stretch, so that the switching gear and the flywheel gear mesh with each other without generating noise. An object of the present invention is to provide a fast forward and fast rewinding device for a tape player that can be reliably performed.

[0006]

Fast forward fast rewind apparatus tape player of the invention According to an aspect of the pair of reel mount gear for rotating the pair of reel blocks taking supply or winding a tape, respectively, corresponding to the respective reel holder gear And rotate in opposite directions
A pair of drive side flywheel gears and the tape
Fast forward and fast rewind
By operating the fast rewind lever and the fast forward lever or the fast rewind lever, one of the pair of reel base gears is operated .
Move in the direction corresponding to the
The guide slot is formed in the direction
A switching arm having a recess formed between the switching arms;
A guide shaft with which the guide groove of the arm is engaged;
The guide groove in the direction that the recess in the guide slot engages the guide shaft.
A spring and the switching arm are rotatably provided on the switching arm, and movement of the switching arm guides the concave portion of the guide long groove.
In one in which deviates from the axial one of the pair of reel base gear and a pair of either one of the driving side flywheel gear preparative those that and a meshing switching gear.

[0007]

In the tape player fast-forward / rewind device according to the present invention, the switching arm is guided and moved by the guide slot in the guide shaft by operating the fast-forward lever or the fast-rewind lever. One of the switching gears meshes with one of the reel base gear and the flywheel gear, and the reel base gear is rotated in the forward or reverse rewind. The switching gear is pulled by a spring immediately before the switching gear is engaged with the reel base gear and the flywheel gear by operating the fast forward or fast rewind lever.
When the concave edge of the guide groove of the switching arm engages with the guide shaft , a load is generated in this concave portion , and after the load is concentrated on the switching arm, the switching arm is moved at once, and the switching gear is instantly fly-flyed. The wheel gear and the reel base gear mesh with each other, and no noise is generated at the tooth tip.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of a fast-forward / rewind device for a tape player of the present invention will be described with reference to FIGS.

Reference numerals 21 and 22 denote a pair of reel stands rotatably supported on an auxiliary base 23 provided on a base (not shown), respectively. A pair of reel stands for rotating these reel stands 21 and 22 by frictional interlocking, respectively. Gears 24 and 25 are on this reel base 2
It is provided coaxially with 1,22.

A pair of driving flywheel gears 26 and 27 are rotatably supported by the base and are rotated by a motor (not shown) via a belt or the like. These driving flywheel gears 26 and 27 are They are rotated in the directions opposite to each other with the arrows.

Further, a fast forward lever 28 and a fast rewind lever 29 are provided on the base so as to be movable forward and backward.
It is moved by a pressing operation against 30, 31. A turning piece 33 engaged with the fast-forward lever 28 and the fast-rewind lever 29 and turned in the opposite direction by the respective operations is rotatably supported by the base.

An operating piece 34 engaged with the rotating piece 33 is rotatably supported on a base, and a switching arm 35 is engaged with the operating piece 34. The switching arm 35 is connected to the pair of reel bases 2.
The auxiliary base 23 is reciprocally movable so as to be moved in a direction parallel to a line connecting the center axes of the switching arms 35, and the switching arm 35 has a guide groove in the moving direction of the switching arm 35.
Guide shafts 37, 37 to be engaged with the guide long grooves 36, 36 project from the auxiliary base 23. A concave portion 38 is formed at an intermediate portion between the guide elongated grooves 36, 36 on a side opposite to a line connecting the central axes of the pair of reel stands 21, 22, respectively.

The switching arm 35 is urged by a recess 38 of the guide long grooves 36, 36 in a line direction connecting the central axes of the pair of reel stands 21, 22 to be engaged with the guide shafts 37, 37. A spring 40 is stretched between the switching arm 35 and the auxiliary base 23 so that the positions of the recesses 38, 38 of the guide long grooves 36, 36 of the switching arm 35 and the guide shafts 37, 37 are engaged. To
The switching arm 35 is pulled by a spring 40.

Further, the switching arm 35 has a pair of small-diameter switching gears 41 and 42 which mesh with the pair of reel base gears 24 and 25 respectively by the movement of the switching arm 35, and the small-diameter switching gears 41 and 42. The pair of drive-side flywheel gears 26 and 27 are provided so as to be coaxially and integrally rotated.
And large-diameter switching gears 43 and 44, which mesh with the gears, are rotatably supported.

Next, the operation of this embodiment will be described.

By pressing the fast-forward lever 28 or the fast-rewind lever 29 against the springs 30 and 31, the switching arm 35 is moved via the rotating piece 33 and the operating piece 34 to the guide shaft 37,
It is guided and moved by the guide long grooves 36, 36 engaged with 37, and one of the switching gears 41, 42 meshes with one of the reel base gears 24, 25 and switches. One of the gears 43 and 44 is meshed with one of the flywheels 26 and 27.

That is, the rapid traverse lever 28 is
As shown in FIG. 3, by performing a pressing operation against
The switching arm 35 is moved, one switching gear 41 meshes with the reel base gear 24 and one switching gear 43 meshes with one flywheel gear 26, and the reel base gear 24 is rotated in the forward direction of the tape. You.

Further, by pressing the fast rewind lever 29 against the spring 31, the switching arm 35 is moved in the opposite direction, and the other switching gear 42 meshes with the reel base gear 25 and the other The switching gear 44 meshes with the other flywheel gear 27, and the reel base gear 25 is rotated in the tape rewinding reverse direction.

When the switching arm 35 is moved when the fast forward lever 28 or the fast rewind lever 29 is operated, the switch is turned off.
Replacement gear 43 or 44 fly with reel base gear 24 or 25
Immediately before engaging with the wheel gear 26 or 27, the spring
Guide groove of the switching arm 35 which is drawn by 40
The edges of the recesses 38, 38 of the switching arms 35 engage the guide shafts 37, 37 to generate a load on the recesses 38, 38 of the guide long grooves 36, 36 of the switching arm 35, and the moving pressure of the switching arm 35 ( When the amount of movement) occurs, the concave portion 38 escapes from the guide shaft 37, the switching gear 43 or 44 meshes with the flywheel gear 26 or 27, and the switching gear 41 or 42 meshes with the reel base gear 24 or 25. Thus, the switching gear 43 or 44 meshes with the flywheel gear 26 or 27, and the switching gear 41 or 42 meshes with the reel base gear 24 or 25, so that the noise at the tooth tip Does not occur.

In the above embodiment, the switching gears are constituted by one pair of the switching gears 41 and 43 and the other switching gears 42 and 44, but may be constituted by a pair of switching gears.

Further, one large-diameter switching gear may be provided at the center of the switching arm 35.

The spring 40 is not limited to the structure in which it is elastically held at the center of the switching arm 35 as described above.
It may be stretched at both ends of the 35 respectively.

Further, in the above embodiment, one of the switching gears 41 and 43 and the other of the switching gears 42 and 44 are connected to the reel base gear.
Although the configuration arranged between 24 and 25 and between the flywheel gears 26 and 27 has been described, the switching gears 41 and 43 and the other switching gears 42 and 44 include the reel base gears 24 and 25 and the flywheel gears 26 and 27. , And can be configured to engage with each other from the outside.

[0024]

According to the present invention, the switching gear is pulled by the spring immediately before the switching gear meshes with the reel base gear and the flywheel gear by operating the fast forward or fast rewind lever.
Was peripheral edge of the guide long groove switching arms have engages <br/> engaged in the guide shaft, and the load is generated in the fast-forward or fast rewind lever in this recess, the recess from the guide shaft and the moving amount of the switching arm is increased And the switching arm is moved all at once, and the switching gear instantaneously reaches the position where it meshes with the flywheel gear and the reel base gear. Can be reliably engaged.

[Brief description of the drawings]

FIG. 1 is a plan view of a fast-forward / fast-rewind device for a tape player according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a plan view showing a meshing state of the switching gear;

FIG. 4 is a plan view of a conventional fast-forward / rewind device for a tape player.

[Explanation of symbols]

 21,22 Reel base 24,25 Reel base gear 26,27 Drive side flywheel gear 28 Fast forward lever 29 Fast rewind lever 35 Switching arm 36 Guide long groove 37 Guide shaft 38 Recess 40 Spring 41,42,43,44 Switching gear

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G11B 15/44

Claims (1)

(57) [Claims] A pair of reel mounts gears claim 1, wherein each feed or winding takes a pair of reel mounts a tape rotation, corresponding to the respective reel holder gears are rotated in opposite directions
A pair of drive-side flywheel gears, and a fast-forward gear for fast-forwarding and rewinding the tape.
By operating the bar and fast rewind lever and these fast forward lever or fast rewind lever
In the direction corresponding to one of the pair of reel base gears or in the other
It is moved in the corresponding direction, and the guide groove is formed in that direction.
And a recess is formed in the middle of this guide slot.
A switching arm to be engaged, a guide shaft in which the guide slot of the switching arm is engaged, and a concave portion of the guide arm in which the switching arm engages the guide shaft.
A spring biases, rotatably provided on the switching arm, the switching arm
State in which the concave part of the guide long groove comes off the guide shaft due to the movement of
In either a pair of fast forward fast rewind apparatus tape player, characterized in that it comprises a meshing switching gear to one or the other bets on the drive side flywheel gear of said pair of reel base gear.