JP3008815B2 - Manufacturing method of tape recorder mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape recorder mechanism of a type in which two right and left mechanism parts are formed on a single mechanical chassis and two right and left mechanisms are driven by one motor. Two or one left and right mechanism parts are configured on a single mechanical chassis, and a different type of tape recorder mechanism such as a tape recorder mechanism that drives one mechanism with one motor is used on the same assembly line. The present invention relates to a method for manufacturing a tape recorder mechanism to be manufactured.

[0002]

2. Description of the Related Art In recent years, as the cost of audio equipment has been reduced, two mechanism parts, left and right, are formed on a single mechanical chassis at a constant pitch in a tape recorder mechanism. In general, a one-motor W mechanism that drives two mechanisms on the left and right sides has become common. The advantage of using this one-motor W mechanism in an audio product equipped with a tape-to-tape dubbing function is that compared to using two single mechanisms that drive one mechanism with one motor. The cost of one very expensive motor among the mechanism components can be reduced, so that a significant cost reduction can be realized.

[0003] However, in the one-motor W mechanism, the drive load of the two mechanisms and the rotational deflection accuracy of the rotating components act on one motor to affect the constant-speed rotation stability of the motor. The drawback is that wow and flutter, which is one of the basic performances, is inferior. Therefore, it is not suitable for products that require high performance. This type of product is equipped with a single mechanism that drives one mechanism with one motor as before, and the product ranks Separately, it has been common practice to divide the types of mounting mechanisms and manufacture them on different assembly lines.

Hereinafter, a conventional example will be described with reference to the drawings. 19 and 22 show a first conventional example. FIGS. 19 and 20 show a single mechanism for reproduction and recording / reproduction, FIGS. 21 and 22 show a one-motor W mechanism, and FIGS. 20 and 22 are plan views. 19 and 20, reference numeral 1 denotes a mechanical chassis on which a reproducing head block 2a or a recording / reproducing head block 2b is mounted, and is capable of reciprocating sliding operation between a stop position and a reproducing position. A normal rotation flywheel 5 having a normal rotation capstan shaft 5a for rotating the tape at a constant speed, and a normal rotation reel base 3 and a reverse rotation reel base 4 for winding the tape by engaging the head substrate 2, the cassette half hub, and the reverse rotation. A reversing flywheel 6 having a capstan shaft 6a and other mechanism components (not shown) for driving the components are configured. Reference numeral 7 denotes a motor, and the motor 7 presses and holds a motor pulley 7b on a rotating shaft 7a. Reference numeral 8 denotes a motor angle. The motor angle 8 holds the motor 7 and is fixed to a boss 1a formed on the mechanical chassis 1 by a fastening screw 9. Reference numeral 10 denotes a capstan belt. The capstan belt 10 connects the motor pulley 7b, the normal rotation flywheel 5, and the reversing flywheel 6 as shown in FIGS. 19 and 20, and corrects the rotation of the motor 7 in the counterclockwise direction. The rotational force is transmitted to the reversing flywheel 5 in the counterclockwise direction and to the reversing flywheel 6 in the clockwise direction.

In order to connect the two single mechanisms of FIGS. 19 and 20 to form a one-motor W mechanism shown in FIGS. 21 and 22, one motor angle 8 and one motor 7 are eliminated, and The two mechanical chassis 1 are connected by connecting screws 11 by fastening screws 9 to hold one motor 7 by the connecting angle 11 and the two capstan belts 10 are held by the motor pulley 7b, as shown in FIGS. As shown in the figure, the right mechanism connects the motor pulley 7b, the forward flywheel 5, and the reversing flywheel 6 to rotate the motor 7 in a counterclockwise direction. It transmits to the wheel 6 as a clockwise rotational force, and the left mechanism is a motor pulley 7b, a forward flywheel 5, a reverse flywheel 6, and a middle flywheel. By connecting the pulley 12, the counterclockwise rotational force of the motor 7 is transmitted as a counterclockwise rotational force to the forward flywheel 5 and a clockwise rotational force to the reverse flywheel 6, similarly to the right mechanism. By doing so, a one-motor W mechanism is realized. The relay pulley 12 is a component required to make the rotation directions of the normal rotation flywheel 5 and the reversing flywheel 6 of the right mechanism and the left mechanism equal to each other, and the rotation pulley 1 b fixed on the mechanical chassis 1 is connected to the rotation pulley 12. It is held rotatably at the center.

The first embodiment of the prior art is a system in which two independent mechanisms manufactured as a single mechanism are connected, and one motor W mechanism is manufactured on another line.

FIGS. 23 and 24 show a second conventional example. FIG. 23 is a plan view of a one-motor W mechanism, and FIG. 24 is a top view thereof. 23 and FIG.
Reference numeral 3 denotes a mechanical chassis, which is capable of forming two right and left mechanism parts at a constant pitch on the mechanical chassis 13.
a or a head substrate 1 on which a recording / reproducing head block 14b is placed and which can slide back and forth between a stop position and a reproduction position.
4. A normal rotation reel base 15 and a reverse rotation reel base 16 for engaging the hub of the cassette half and winding the tape, a normal rotation flywheel 17 having a normal rotation capstan shaft 17a for running the tape at a constant speed, and a reverse rotation capstan Axis 18
The reversing flywheel 18 having a and other mechanism components (not shown) for driving the components are configured as left and right mechanisms. Reference numeral 19 denotes a motor, and the motor 19 has a motor pulley 19
b is pressed and held. 20 is a motor angle,
The motor angle 20 holds the motor 19 and is fixed to a boss 13 a formed on the mechanical chassis 13 by a fastening screw 21. Reference numeral 22 denotes a capstan belt, and the capstan belt 22 is a motor pulley 19.
23 and 24, the right side mechanism is a motor pulley 19b, a normal rotation flywheel 17,
By connecting the reverse flywheel 18, the counterclockwise rotational force of the motor 19 is transmitted as a counterclockwise rotational force to the forward flywheel 17 and a clockwise rotational force to the reverse flywheel 18. The left side mechanism connects the motor pulley 19b, the normal rotation flywheel 17, the reversing flywheel 18, and the relay pulley 23 to control the counterclockwise rotation force of the motor 19 in the same manner as the right side mechanism. The one-motor W mechanism is realized by transmitting clockwise rotation force to the reversing flywheel 18 in the clockwise direction. The relay pulley 23 is a component necessary to make the rotation directions of the normal rotation flywheel 17 and the reversing flywheel 18 of the right mechanism and the left mechanism the same, and the rotation pulley 13b fixed on the mechanical chassis 13 It is held rotatably at the center.

In the second conventional example, two left and right mechanism parts are formed at a constant pitch on one mechanical chassis, and one motor W mechanism is manufactured on a dedicated line.

[0009]

However, in the above-mentioned conventional method of manufacturing a tape recorder mechanism, the method of manufacturing the single mechanism in the above-described first embodiment is performed after a single mechanism is manufactured on a dedicated line, and then a predetermined mechanism component is manufactured. Is added and abolished, a separate line is required to connect two independent single mechanisms to produce a 1-motor W mechanism, or a mechanism that has been completed as a single mechanism is disassembled and semi-finished. Two mechanisms had to be connected, and the introduction of equipment, an increase in the number of assembling steps, an increase in work-in-process inventory, and the like necessitated an increase in manufacturing costs and an increase in assembly loss. Further, in the second conventional example, it is impossible to share and assemble one motor W mechanism in a line for manufacturing a single mechanism, and a dedicated line for manufacturing as one motor W mechanism is required. Therefore, when it is necessary to introduce large-scale equipment or to separate the types of mechanisms to be installed according to product ranks, it is necessary to set up manufacturing lines for both single mechanisms and one-motor W mechanisms. Productivity per site area, single mechanism and 1 motor W
It has been difficult to adjust the balance of the production volume of the mechanism, causing idle equipment, and the like, which has necessitated an increase in manufacturing costs and an increase in assembly loss.

The present invention has been made in consideration of the above-described conventional problems, and has been developed in consideration of the above-described conventional problems. One motor W mechanism drives two left and right mechanisms by one motor on one mechanical chassis, and two left and right mechanisms on one mechanical chassis. Mechanism by one motor each
A two-motor W mechanism that drives one mechanism and a single mechanism that drives one mechanism with one motor on one mechanical chassis realizes a mechanism configuration that can be manufactured on the same line. An object of the present invention is to provide a method of manufacturing a tape recorder mechanism that can combine different types of mechanisms at a low cost without increasing up or assembling loss.

[0011]

In order to solve the above problems, a method of manufacturing a tape recorder mechanism according to the present invention comprises the steps of:
The left and right mechanism parts can be configured on a single mechanical chassis at a constant pitch, and two capstan belts are held on a motor pulley press-fitted and held by a motor, and flywheels for left and right mechanisms and left or right coupled with rotation retained relay pulley mechanism, the flywheel of the left and right mechanisms by rotating in the same direction, capable of driving one motor at two right and left mechanisms on the same mechanical chassis Reverse In this type of tape recorder mechanism, the relay pulley is eliminated from this configuration, and the motor pulley pressed and held by the motor is moved forward.
The capstan belt is located at the same position as the relay pulley, and the capstan belt is connected to the left and right motor pulleys and flywheel.
By doing so, two motors on the same mechanical chassis
Two identical mechanisms can be driven, and
A plurality of divided portions formed on the mechanical chassis
Taken along, when you release the mechanical chassis minute,
Two independent motors so as to have the same mechanism
Pulley position, relay pulley position, on the mechanical chassis
Is set .

[0012]

[0013]

[0014]

The method of manufacturing a tape recorder mechanism according to the present invention has the above-mentioned structure, that is, two mechanism parts are formed at right and left sides at a fixed pitch on one mechanical chassis, and two caps are mounted on a motor pulley press-fitted and held by the motor. By holding the stan belt and connecting it to the flywheel of the left and right mechanism and the relay pulley held by one of the left and right mechanisms, and by rotating the flywheel of the left and right mechanism in the same direction, two motors on the left and right with one motor In the manufacturing line of the one-motor W mechanism capable of driving the above mechanism, in the assembly process of mounting the relay pulley on the mechanical chassis, the motor in which the motor pulley is press-fitted without mounting the relay pulley is switched to be additionally mounted on the mechanical chassis. , Assembly work to connect each rotating part with capstan belt In such a configuration, the capstan belt is switched so as to be connected to each of the left and right motor pulleys and the flywheel, and two mechanisms on the left and right sides are driven by one motor on one mechanical chassis, that is, one mechanism is driven. After the two-motor W mechanism is manufactured, when the left and right mechanisms are separated by dividing the mechanical chassis, two independent single mechanisms are configured.

Further, in the method of manufacturing a tape recorder mechanism according to the present invention, the positional relationship between the two left and right mechanism parts is configured to be the same for each of the right and left mechanism centers, and the rotating shaft of the motor is rotated. The position and the rotation axis position of the relay pulley are also the same for the left and right mechanism centers, and the motor with the motor pulley pressed and held is added to the mechanical chassis without mounting the relay pulley to the mechanical chassis. At this time, by configuring the rotation axis position of the motor to be mounted so as to be coaxial with the rotation axis position of the relay pulley, the two left and right mechanisms are arranged at a constant pitch on one mechanical chassis, and the two motors have the same configuration.
When the mechanical chassis is divided, the separated left and right mechanisms are configured to be two independent single mechanisms of the same form.

In the method of manufacturing a tape recorder mechanism according to the present invention, the mechanical chassis is divided by a dividing line in which each of the left and right mechanisms becomes an independent single mechanism having the same form. When the mechanism components overlap, a notch is formed on the dividing line of the mechanical chassis so as not to hinder the dividing means and to reduce the dividing area and improve the reliability and stability of the dividing means. As a result, the mechanical chassis has a plurality of divided portions, and the plurality of portions are partially divided.

As described above, the method of manufacturing a tape recorder mechanism according to the present invention provides a tape recorder mechanism capable of assembling different types of mechanisms such as a one-motor W mechanism, a two-motor W mechanism, and a single mechanism on the same assembly line. The present invention has been made in order to provide a manufacturing method, and a method of manufacturing a one-motor W mechanism by connecting two independent mechanisms manufactured by a single-mechanism dedicated line as in a conventional manufacturing method. Instead of manufacturing one motor W mechanism and single mechanism on each dedicated line, it is necessary to switch the necessary mechanism parts by type in the assembly process of a part of the manufacturing line, and to select only the mechanical chassis after the mechanism assembly is completed. Motor W
The combination of the mechanism, the two-motor W mechanism, and the single mechanism can be realized on the same assembly line. Therefore, it is not necessary to introduce a large-scale facility for installing a separate line for connecting two single mechanisms or a dedicated line for the one-motor W mechanism, and disassemble the mechanism once completed as a single mechanism. Single mechanism and 1-motor W mechanism, even if there is no increase in the number of assembling steps and no work-in-process inventory when connecting two mechanisms in a semi-finished state, and when it is necessary to divide the type of mechanism to be installed according to product rank There is no need to install both production lines, and there is no reduction in productivity per factory site area, and no idle equipment occurs because the production volume of the single mechanism and the one-motor W mechanism cannot be balanced. Cost and assembly loss can be greatly reduced. At the time of manufacturing the system, the mechanical chassis is partially divided to improve the reliability and stability of the dividing means, and it is easy to combine different types of mechanisms such as one motor W mechanism, two motor W mechanism and single mechanism at low cost. It is possible to divide.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
This will be described in detail with reference to FIG.

FIG. 1 and FIG. 2 are mechanism configuration diagrams showing a completed state of one motor W mechanism assembly in one embodiment of the method of manufacturing a tape recorder mechanism of the present invention.
Is a plan view of the mechanism, and FIG. 2 is a top view thereof. Figure 1,
In FIG. 2, reference numeral 24 denotes a mechanical chassis, on which two right and left mechanism parts can be formed at a constant pitch on the mechanical chassis 24, and a reproducing head block 25a or a recording / reproducing head block is provided on the mechanical chassis 24. 25
b, a head substrate 25 capable of reciprocating sliding operation between a stop position and a reproduction position, a normal reel base 26 and a reverse reel base 2 which engage with a hub of a cassette half and wind a tape.
7. A forward flywheel 28 having a forward capstan shaft 28a for running the tape at a constant speed, a reverse flywheel 29 having a reverse capstan shaft 29a, and other mechanism components (not shown) for driving these components. The left and right mechanisms are configured. 3
Reference numeral 0 denotes a motor, and the motor 30 presses and holds a motor pulley 30b on a rotating shaft 30a. Reference numeral 31 denotes a motor angle. The motor angle 31 holds the motor 30 and has a boss 2 formed on the mechanical chassis 24.
4a, it is fixed to the right side mechanism in this embodiment by a fastening screw 32. 33 is a capstan belt, and the capstan belt 33 is a motor pulley 30b.
As shown in FIGS. 1 and 2, the right side mechanism connects the motor pulley 30b, the forward flywheel 28, and the reverse flywheel 29 to apply the counterclockwise rotational force of the motor 30 to the forward flywheel 28. And the clockwise rotation force is transmitted to the counterclockwise and reversing flywheel 29, and the left side mechanism connects the motor pulley 30b, the normal rotation flywheel 28, the reversing flywheel 29, and the relay pulley 34 to The counterclockwise rotation force of the counterclockwise 30 is applied to the forward rotation flywheel 28 in the same manner as the right side mechanism.
Is transmitted as a clockwise rotational force to
The motor W mechanism is realized. The relay pulley 34 is a component required to make the rotation directions of the normal rotation flywheel 28 and the reversing flywheel 29 of the right mechanism and the left mechanism the same, and the rotation pulley 24 b formed on the mechanical chassis 24 is It is held rotatably at the center. In this embodiment, the relay pulley 34 is mounted on the left side mechanism.
b and the rotating shaft 30a of the motor 30 fixed to the right mechanism have the same positional relationship to the left and right mechanism centers on a plane.

A method of manufacturing the one-motor W mechanism configured as described above will be described below. A head substrate 25 on which a reproducing head block 25a or a recording / reproducing head block 25b is mounted, a normal rotation reel base 26 and a reversing reel base 27, and a normal rotation capstan shaft 28a are respectively provided on left and right mechanism components on the mechanical chassis 24. The relay pulley 34 is mounted only on the left flywheel and the reversing flywheel 29 having the forward flywheel 28 and the reversing capstan shaft 29a and other mechanism parts (not shown) for driving these parts. Next, FIG.
The capstan belt 33 is connected to the forward flywheel 28 and the reverse flywheel 29 of the right mechanism as shown in the plan view of FIG. 4 and the top view of FIG. 4, for holding two belts formed on the mechanical chassis 24. It is mounted so as to be held by the boss 24c. From this state, as shown in the top view of FIG. 5, the capstan belt 33 is held in a state where the capstan belt 33 is connected to the motor pulley 30b press-fitted and held on the rotating shaft 30a of the motor 30, and is moved in the direction of arrow A to be attached to the left mechanism. I do. At this time, the capstan belt 33 is
Since the motor pulley 30b is held by the belt holding boss 24c, the motor pulley 30b does not come into contact with the capstan belt 33 at the time of mounting. When the capstan belt 33 is attached, the forward flywheel 28, the reversing flywheel 29, and the relay pulley 34 of the left mechanism are attached.
And the motor angle 31 holding the motor 30 is fastened to the boss 2 of the mechanical chassis 24 by fastening screws 32.
4a. This state is shown in FIGS.

FIG. 6 is a plan view of the mechanism, and FIG. 7 is a top view. In the state shown in FIGS. 6 and 7, the capstan belt 33 of the right mechanism is connected to the normal flywheel 28 and the reverse flywheel 29 as in the state shown in FIGS.
It is held by two belt holding bosses 24 c formed on the mechanical chassis 24. Further, the capstan belt 33 of the left mechanism is connected to the motor pulley 30b, the normal rotation flywheel 28, the reversing flywheel 29, and the relay pulley 34, and is in a regular belt connection state. In order to bring the capstan belt 33 of the right mechanism from the state shown in FIGS. 6 and 7 into the normal belt connection state, as shown in FIG.
B between the capstan belt 33 held by the belt holding boss 24c and the mechanical chassis 24,
Move in the direction. During the movement, the tip of the L-shaped jig 35 comes into contact with the capstan belt 33, and the capstan belt 33 is moved together with the L-shaped jig 35 in the direction of arrow B by the two belt holding bosses 24c. Is released, and is moved in the direction of the motor pulley 30b by the tension to be connected to the motor pulley 30b. That is, the two belt holding bosses 24c formed on the mechanical chassis 24 are set to such a height that the holding position of the capstan belt 33 is released to the position of the connecting portion of the motor pulley 30b.

As described above, the capstan belt 33 of the right side mechanism is connected to the motor pulley 30b, the normal rotation flywheel 28, and the reversing flywheel 29 to be in a normal belt connection state, and the one motor W shown in FIGS.
The mechanism assembly is completed.

Next, a manufacturing method for manufacturing a two-motor W mechanism and a single mechanism in the one-motor W mechanism manufacturing line will be described below.
A head substrate 2 having recording / reproducing head blocks 25b mounted on left and right mechanism components on a mechanical chassis 24, respectively.
5, a forward reel base 26 and a reverse reel base 27, a forward flywheel 28 having a forward capstan shaft 28a, a reverse flywheel 29 having a reverse capstan shaft 29a, and other mechanism parts for driving these parts (FIG. (Not shown). Next, as shown in the plan view of the mechanism of FIG. 9 and the top view of FIG. 10, the capstan belt 33 is connected to the forward flywheel 28 and the reverse flywheel 29 of each of the left and right mechanisms and formed on the mechanical chassis 24. Two belt holding bosses 24c
Attach so that it is held by. From this state, as shown in the top view of FIG.
Is moved in the direction of arrow A to mount the motor 30 on the left and right mechanisms, respectively. On this occasion,
The capstan belt 33 is composed of two belt holding bosses 24.
Since the motor pulley 30b is held at the position c, the motor pulley 30b is in a positional relationship such that the motor pulley 30b does not come into contact with the capstan belt 33 at the time of mounting. At the time of mounting, the motor angle 31 holding the motor 30 is fixed to the boss portion 24 a of the mechanical chassis 24 with the fastening screw 32. This state is shown in FIGS.

FIG. 12 is a plan view of the mechanism, and FIG. 13 is a top view. In the state of FIGS. 12 and 13, the capstan belts 33 of the left and right mechanisms are connected to the normal rotation flywheel 28 and the reversing flywheel 29 as in the state of FIGS. 9 and 10, and are formed on the mechanical chassis 24. It is held by two belt holding bosses 24c. In addition, the motor 30 mounting position of the left side mechanism is configured such that its rotary shaft 30a is coaxial with the rotation support shaft 24b of the relay pulley 34, so that the motor 30 mounting position of the left side mechanism and the right side mechanism is on a plane. The left and right mechanism centers are in the same positional relationship. This figure 1
2. In order to bring the capstan belts 33 of the left and right mechanisms from the state shown in FIG. 13 into the normal belt connection state, the tip of the L-shaped jig 35 as shown in FIG. It is inserted between the capstan belt 33 held by the belt holding boss 24c and the mechanical chassis 24 and moved in the direction of arrow B. During the movement, the tip of the L-shaped jig 35 comes into contact with the capstan belt 33, and the capstan belt 33 is moved together with the L-shaped jig 35 in the direction of arrow B by the two belt holding bosses 24c. Is released, and due to the tension, the motor pulley 30b moves in the direction of the motor pulley 30b.
b. That is, the two belt holding bosses 24c formed on the mechanical chassis 24 are set to such a height that the holding position of the capstan belt 33 is released to the position of the connecting portion of the motor pulley 30b.

As described above, the capstan belts 33 of the left and right mechanisms are connected to the motor pulley 30b, the forward flywheel 28, and the reverse flywheel 29 to be in a regular belt connection state, as shown in FIGS. A configuration in which two mechanisms on the left and right sides are driven by one motor on one mechanical chassis,
That is, the two motor W mechanism assembly is completed. The two-motor W mechanism is the same type of mechanism in which the left and right mechanisms on the mechanical chassis 24 are formed at a constant pitch. Next, the notch 2 provided between the left and right mechanisms of the mechanical chassis 24 from this state.
Connecting portions 24e and 24f above and below 4d (shaded portion)
Is divided by some means such as a press die. The mechanism form after the division is shown in the mechanism plan view of FIG. 17 and the top view of FIG.

As shown in FIGS. 17 and 18, the left mechanical chassis 24g and the right mechanical chassis 24h after division have the same shape, so that the separated left and right mechanisms have been assembled into two single mechanisms in the same form. Becomes The notch 24d provided between the left and right mechanisms of the mechanical chassis 24 reduces the divided area so that when dividing the left and right mechanisms, the mechanism components do not overlap on the dividing line and hinder the dividing means. The purpose is to improve the reliability and stability of the dividing means.

As described above, in the manufacturing line for the one-motor W mechanism, in the assembly step of mounting the relay pulley 34 on the mechanical chassis 24, the motor 30 in which the motor pulley 30b is pressed and held without mounting the relay pulley 34 is mounted on the mechanical chassis 24. In addition, the capstan belt 33 is connected to each other by the capstan belt 33, and the capstan belt 33 is connected to each of the left and right motor pulleys 30 in the assembly process.
It is possible to manufacture a two-motor W mechanism and a single mechanism only by switching so as to connect b to each rotating part and selecting the division of the mechanical chassis 24.
Further, according to the method of manufacturing a tape recorder mechanism of the present invention, it is possible to fully automate the assembly line of the different types of mechanisms described above.

In this embodiment, the left mechanism is used for reproduction in the one-motor W mechanism, the right mechanism is used for recording / reproduction, and the left / right mechanism is used for recording / reproduction in the two-motor W mechanism. However, different combinations of mechanisms can be manufactured by selecting the type of head block mounted on the head substrate 25. Further, in this embodiment, the reverse mechanism is all used. However, by switching the assembly process to a one-way mechanism specification in which the tape runs only in one direction, a combination of the reverse mechanism and the one-way mechanism is also possible. . That is, all types of mechanisms that can be constituted by the tape recorder mechanism can be grouped on the same assembly line.

[0029]

As described above, the method of manufacturing a tape recorder mechanism according to the present invention makes it possible to combine different types of mechanisms such as a one-motor W mechanism, a two-motor W mechanism, and a single mechanism on the same assembly line. The purpose of the present invention is to provide a method for manufacturing a recorder mechanism, and to manufacture a one-motor W mechanism by connecting two independent mechanisms manufactured on a dedicated line for a single mechanism as in a conventional manufacturing method. It is not a method of manufacturing a 1-motor W mechanism or a single mechanism on each dedicated line, but the mechanism parts required for each type are switched in the assembly process of a part of the manufacturing line and the division of the mechanical chassis after the completion of the mechanism assembly Only one motor W mechanism, 2 Over data W mechanism, the grouping of single mechanism can be realized in the same assembly line. Therefore, it is not necessary to introduce a large-scale facility for installing a separate line for connecting two single mechanisms or a dedicated line for the one-motor W mechanism, and disassemble the mechanism once completed as a single mechanism. Single mechanism and 1-motor W mechanism, even if there is no increase in the number of assembling steps and no work-in-process inventory when connecting two mechanisms in a semi-finished state, and when it is necessary to divide the type of mechanism to be installed according to product rank There is no need to install both production lines, and there is no reduction in productivity per factory site area, and no idle equipment occurs because the production volume of the single mechanism and the one-motor W mechanism cannot be balanced. Cost and assembly loss can be greatly reduced. At the time of manufacturing the system, the mechanical chassis is partially divided to improve the reliability and stability of the dividing means, and it is easy and inexpensive to use 1 motor W mechanism, 2 motor W mechanism, single mechanism and recording / reproducing mechanism. An object of the present invention is to provide a method of manufacturing a tape recorder mechanism capable of combining different types of mechanisms, such as a reproduction type, a reverse type, and a one-way type.

[Brief description of the drawings]

FIG. 1 is a plan view showing a one-motor W mechanism configuration in a tape recorder manufacturing method according to an embodiment of the present invention.

FIG. 2 is a top view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 3 is a plan view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 4 is a top view showing a configuration of a one-motor W mechanism in a tape recorder manufacturing method according to an embodiment of the present invention.

FIG. 5 is a top view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 6 is a plan view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 7 is a top view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 8 is a top view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 9 is a plan view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 10 is a top view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 11 is a top view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 12 is a plan view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention;

FIG. 13 is a top view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 14 is a top view showing a mechanism configuration at the time of grouping in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 15 is a plan view showing a two-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 16 is a top view showing a two-motor W mechanism configuration in the tape recorder manufacturing method according to one embodiment of the present invention.

FIG. 17 is a plan view showing a single mechanism configuration in a tape recorder manufacturing method according to an embodiment of the present invention.

FIG. 18 is a top view showing a single mechanism configuration in a tape recorder manufacturing method according to an embodiment of the present invention.

FIG. 19 is a plan view showing a single mechanism configuration in the tape recorder manufacturing method according to the first conventional example.

FIG. 20 is a top view showing a single mechanism configuration in a conventional tape recorder manufacturing method according to the first embodiment.

FIG. 21 is a plan view showing a one-motor W mechanism configuration in the tape recorder manufacturing method according to the first conventional example.

FIG. 22 is a top view showing a one-motor W mechanism configuration in the conventional tape recorder manufacturing method according to the first embodiment.

FIG. 23 is a plan view showing a one-motor W mechanism configuration in a tape recorder manufacturing method according to a second conventional example.

FIG. 24 is a top view showing a one-motor W mechanism configuration in a conventional tape recorder manufacturing method according to a second embodiment.

[Explanation of symbols]

 Reference Signs List 24 mechanical chassis 24a boss portion 24b rotation support shaft 24c belt holding boss 24d cutout portion 24e connecting portion 24f connecting portion 24g left mechanical chassis after division 24h right mechanical chassis after division 25 head substrate 25a reproducing head block 25b recording / reproducing Head block 26 forward reel stand 27 reverse reel stand 28 forward flywheel 28a forward capstan shaft 29 reverse flywheel 29a reverse capstan shaft 30 motor 30a rotary shaft 30b motor pulley 31 motor angle 32 fastening screw 33 capstan belt 34 Relay pulley 35 L-shaped jig

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G11B 33/12 302 G11B 33/12 306 G11B 15/26 G11B 33/02 501

Claims (1)

(57) [Claims] 1. A one on the mechanical chassis configurable are two mechanisms parts left at a predetermined pitch, while holding the two capstan belt motor pulley press-fitted held in the motor of the left and right respective mechanisms Fly The left and right mechanisms can be driven by one motor on the same mechanical chassis by connecting the flywheel of the left and right mechanisms in the same direction by connecting to the wheel and the relay pulley that is rotated and held by one of the left and right mechanisms Reverse type tape recorder mechanism, which eliminates the relay pulley and press-fits the motor into the motor.
A motor pulley is arranged at the same position as the relay pulley, and the capstan belt is connected to each of the left and right motor pulleys and the flywheel, so that two motor pulleys can be mounted on the same mechanical chassis.
Two motors can drive the same mechanism on the left and right
Formed on the mechanical chassis.
Cut along the plurality of divided locations, and
When the amount released, the motor pulley positioned so that two separate identical mechanism, the relay pulley position, before
A method for manufacturing a tape recorder, wherein a divided portion on a mechanical chassis is set .