JPS5920180B2 - Tape-shaped recording medium recording and reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape-shaped recording medium recording/reproducing device, in which two displacement stationary rollers are displaceably connected, and a means for displacing the interval between the rollers is provided. It is possible to automatically shift from a loaded state to a stretched state with a predetermined tension, and the tape is not loosened. It is an object of the present invention to provide a recording/reproducing device that can run with a predetermined tension without being overstretched.

Force setting type video tape recorder (hereinafter referred to as force setting type VT)
For tape recorders of the type (referred to as R) that pull out the tape from a force set half and wind it around a rotating drum, when in use, the tape is pulled out from the reel and loaded onto a predetermined tape running path, and after loading, the tape is A tape mounting mechanism is needed to tension the tape with a predetermined tension without overtightening or loosening.

On the other hand, in the conventional open-reel type audio tape recorder as shown in FIG.
One roller 3b is wound onto a take-up reel 5 via fixed rollers 4a, 4b and a displacement roller 3b, and when the tape 2 runs in the direction of arrow a, the rollers 3a, 3b are integrally moved. As a result, the tape 2 is relaxed on the supply reel 1 side, but is stretched on the take-up reel 5 side, and runs with an appropriate tension applied thereto.

Here, the rollers 3a and 3b as shown in FIG.
Since the rollers 3a and 3b are connected and attached by ``, the distance between them is permanent, and for this reason, these rollers 3a and 3b are used when a tape is pulled out from a reel, such as in the tape loading mechanism of the force setting type TR described above. This cannot be applied to machines that require an operation to transition from a suspended state to a stretched state with a predetermined tension.

The present invention has been made in view of the above facts, and each embodiment thereof will be described with reference to FIG. 2 and subsequent figures. Figure 2 A, B
1A and 1B respectively show schematic plan views in a stop mode and a running mode of a first embodiment of the tape-shaped recording medium recording and reproducing apparatus according to the present invention. In the figure, reference numerals 6a to 6f are fixed guide rollers, which are erected along the tape running path.
The tape 8 pulled out from the supply reel 7a is transferred to the roller 6c.
, 6d so that it is wound around the rotating drum 9 by about 18 inches and taken up on the take-up reel 7b. 10,1
1 is a capstan and pinch roller for intermittent running, respectively.
It is provided on the tape running path between the roller 6d and the roller 6e, and 12 and 13 are a continuous running capstan and a pinch roller, respectively, and are provided on the tape running path between the roller 6f and the reel 7b.

A video head 9a is provided on the rotating drum 9, and an audio head 14 is provided on the tape running path between the roller 6f, the cabstan 12, and the pinch roller 13.

15a to 15h are fixed rollers, and rollers 15b to 15e are fixed rollers.
The line connecting rollers 6b and 6a is between roller 6b and roller 6e.
and the roller 6f.

16 is a connecting body such as a string, and is connected to the fixed rollers 15a to 15.
h, and a displacement tension roller 17a and a displacement tension roller 17b are mounted between rollers 15b and 15c and between rollers 15d and 15e.
is installed.

Displacement rollers 18a and 18b are connected by a connecting member 18'', and a connecting body 16 is provided between rollers 15c and 15d and between rollers 15g and 15h, respectively. .

The displacement rollers 18a and 18b are provided in conjunction with a mode changeover switch (not shown), and are respectively displaced to an upper position as shown in FIG. 2A in the stop mode and a lower position as shown in FIG. 2B in the running mode. It is configured as follows. Note that the rollers 15a to 15h, 18a, 18b and the connecting body 16 are provided at positions that are not on the same plane as the running path of the tape 8 so as not to hinder the running of the tape 8. On the other hand, the displacement tension rollers 17a, 17b is provided on the same surface as the running path of the tape 8, and in the stop mode, as shown in FIG.
and the roller 15e. When the drive mode is set by operating the switch, the rollers 18a and 18b are integrally displaced in the direction of arrow c and reach the position shown in FIG. As a result, the connecting body 16 is displaced in the directions of arrows E and f shown in FIG. It is displaced while being drawn into the loop of. As a result, the tape 8 is moved to the roller 6a.
~6f with a predetermined tension. In this way, by moving the rollers 17a and 17b closer to each other in the linear direction according to the mode switching, the tape 8 can be mounted in the shape shown in FIG. , can be mounted easily and quickly. On the other hand, after the rollers 17a and 17b are displaced to predetermined positions, the capstan 10 and the pinch roller 11 are attached to the tape 8, and the tape 8 is transferred from the roller 17a to the capstan 1.
0, the tape 8 is intermittently run through the pinch roller 11 to the roller 17b, and the capstan 12 and the pinch roller 13 are attached to the tape 8, and the tape 8 is continuously run from the roller 17b to the take-up reel 7b. In this case, the amount of tape travel due to intermittent running is set to be greater than the amount of tape travel due to continuous running. The tape 8 is moved to the roller 1 by intermittent running by the capstan 10 and the pinch roller 11.
The video head 9a traces the same track several times during the period when the rollers 7a to 17b are stopped.

Meanwhile, during this period, the capstan 12 and the pinch roller 13
As a result, the tape 8 continuously runs between the roller 17b and the loop of the take-up reel 7b, so the roller 17b is displaced in the direction of arrow e by the running of the tape 8 between the roller 6e and the roller 6f, and the roller 17b is displaced in the direction of the arrow e. 17a is also displaced in the direction of arrow e. The tape 8 is pulled out from the supply reel 7a by displacement of the roller 17a in the direction of arrow e. Next, during the period when the tape 8 is running between the loop of rollers 17a and 17b by the capstan 10 and the pinch roller 11, the amount of tape running by the capstan 10 is compared to the amount of tape running by the capstan 12 as described above. Since the tape 8 is large, the roller 17a is displaced in the direction of the arrow f by the tension caused by the running of the tape 8, and the roller 17b is also displaced in the direction of the arrow f. Due to the displacement of the roller 17b in the direction of the arrow f, the tape 8 is moved between the capstan 10 and the capstan 12.
It is stretched between 6 and runs without relaxation. By repeating the above operations, the video head 9a can perform slow motion reproduction, while the audio head 14 can reproduce audio. Relaxation can be eliminated by alternately displacing the lonora 17a, 17b in the directions of arrows E and f, and the tape 8 can be stably run with a predetermined tension.

3A to 3C respectively show a schematic plan view, bottom view, and side view of the main parts of a second practical example of the tape-shaped recording medium recording and reproducing device according to the present invention, and have the same configuration as FIGS. 2A and 2B. The parts are given the same number.

In the figure, reference numeral 20 denotes a fixed guide rail, which is located between rollers 6b and 6a and between rollers 6e and 6f, and has a displacement tension roller 21a erected on top. A pedestal 21a'' and a pedestal 21b'' on which a displacement tension roller 21b is erected are attached to be slidable in the longitudinal direction, and the pedestal 21a and the pedestal 21b
are connected by connecting rods 22a, 22b connected by a fulcrum 22 at respective fulcrums 21aI, 21bI. Note that the rollers 6a, 21a, 6b, 6e, 21b
, 6f are loaded with tapes 8. Reference numeral 23 denotes a displacement guide rail, which can be freely displaced in the directions of arrows C and d in conjunction with a mode changeover switch (not shown).
Similar to the first embodiment, it is located in the upper position in the stop mode, and in the upper position in the running mode.
They are configured to be respectively displaced to the lower positions as shown in FIG.

Reference numeral 24 denotes a connecting frame, which is attached to the guide rail 23 so as to be slidable in the longitudinal direction.
'', 21b'' by connecting rods 25a, 25b.

Here, when changing from the stop mode to the running mode, when the guide rail 23 is displaced to the positions shown in FIG. , As a result, the tape 8 is placed between the roller 6b and the roller 6a, and between the roller 6e and the roller 6f.
It is pulled inward by the husband rollers 21a and 21b between the two.

While the tape 8 is intermittently running as in the first practical example, the frames 21a and 21b5 move along the guide rail 20 in the direction of the arrow E.
, f directions, and the tape 8 is stretched without loosening by the rollers 21a and 21b. Note that the pedestal 21a
When I and 21b'' slide on the guide rail 20, the connecting frame 24 is displaced in the same direction via the connecting rods 25a and 25b.On the other hand, when changing from the running mode to the stop mode,
When the guide rail 23 is displaced in the direction of the arrow d, the frames 21a'' and 21b'' move on the guide rail 20 in the direction of the arrow F.
, e direction, and then the capstans 10 and 12 are separated from the tape 8, whereby the tape 8 is moved in the direction A of FIG.
reach the position shown in . The other operations and effects are the same as those of the first practical example shown in FIGS. 2A and 2B, so their explanation will be omitted. As described above, the tape-shaped recording medium recording and reproducing apparatus according to the present invention includes two displacement tents supported displaceably outside the loop on the running path of the tape-shaped recording medium mounted in a loop shape on the guide roller. The rollers are connected to each other, and the intervals between the rollers are made to be different by providing means associated with the rollers that can be displaced in a direction different from the direction of displacement of the rollers, and the rollers are wound around a part of the recording medium. Since the tape mounting state can be changed by hanging or removing the tape, it is possible to automatically shift the tape from a certain mounting state to a tensioned state with a predetermined tension with a simple purchase. There is no need to take the trouble to manually mount the tape on the tension roller, and it can be mounted easily and quickly.In addition, by providing an intermittent tape running means between the guide drum and the displacement tension roller, the displacement tension roller can be mounted easily and quickly. Since a continuous tape running means is provided between the roller and the take-up reel, the two displacement tension rollers are alternately displaced upward in the linear direction by the tape running intermittently and continuously, and as a result, It has the advantage of being able to run with a predetermined tension without loosening or pulling the tape too much, and therefore ensuring reliable recording and reproduction without causing wow, flutter, jitter, etc.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view of a main part of an example of a general audio tape recorder, and FIGS. 2A and 2B are schematic plan views of a first practical example of a tape-shaped recording medium recording and reproducing apparatus according to the present invention in stop mode. FIGS. 3A to 3C are a schematic plan view in the running mode, and FIGS. 3A to 3C are a plan view, a bottom view, and a side view of the main parts of the second practical example of the recording and reproducing apparatus of the present invention in the running mode. 6a to 6f...Fixed guide roller, 7...
...Power set half, 7a... Supply reel, 7
b-...Take-up reel, 8...Tape, 9
......Guide drum, 9a...-Video head, 10...1 Capstan for intermittent running, 12
・・・・・・Capstan for continuous running, 14-・・・・
・Audio head, 15a-15h...Fixed roller, 16...Series assembly, 17a, 17b, 2
1a, 21b...Displacement tension roller 618
a, 18b...One displacement roller, 18''...
Connecting member, 20...Fixed guide rail, 21a
``, 21b''... Frame, 23... One displacement guide rail, 24... Series connection frame, 21a'',
21b'', 24''... fulcrum, 25a, 25b...
...Connecting rod.

Claims (1)

[Scope of Claims] 1. A tape-shaped recording medium mounted in a loop shape on a guide roller is provided at a predetermined distance outside the loop of the recording medium on the running path and at a position where the loop of the recording medium can be pinched from both sides. two displacement tension rollers supported so as to be freely displaceable on a straight line that connects each other; a connecting body that is mounted in a loop around a guide roller and has the displacement tension roller attached at a predetermined position; It is wound around the connecting body so that it can be freely displaced in a direction different from the displacement direction, and by changing the mounting shape of the connecting body, the displacement tension rollers are displaced in opposite directions on the straight line. 1. A tape-shaped recording medium recording and reproducing apparatus, comprising a displacement tension roller that winds the displacement tension roller around a part of the recording medium and unwinds the displacement tension roller. 2. Straight lines connecting each other, which are provided at a predetermined distance on the running path of a tape-shaped recording medium mounted in a loop on a guide roller, at a position outside the loop of the recording medium and where the loop of the recording medium can be sandwiched from both sides. two displaceable tension rollers that are supported so as to be freely displaceable; a first guide rail that displaceably supports the two displaceable tension rollers; and a first guide rail that is parallel to the first guide rail and perpendicular to its longitudinal direction. a second guide rail disposed so as to be freely displaceable in the direction;
A connecting pedestal is provided on the second guide rail so as to be freely displaceable in the longitudinal direction thereof and has a connecting rod that connects the displaced tension rollers to each other, and the second guide rail is disposed in a direction different from the displacement direction of the displaced tension rollers. A tape-shaped recording medium recording/reproducing device characterized in that the displacement tension roller is displaced in opposite directions on the straight line by displacing the displacement tension roller in the direction, so that the displacement tension roller is wound around a part of the recording medium and detached from the recording medium. . 3. On the running path of a tape-shaped recording medium that is mounted in a loop on a guide roller and wound onto a take-up reel via a rotating drum from a supply reel, the loop of the recording medium is viewed from both sides on the outside of the loop of the recording medium. Two displacement tension rollers are provided at a predetermined distance at positions where they can be pinched, and are supported so as to be freely displaceable on a straight line connecting each other, and a recording medium running path provided on a recording medium running path between the guide drum and the displacement tension roller, and the recording medium. means for causing the medium to run intermittently; means for continuously running the recording medium provided with a recording medium running path between the displacement tension roller and the take-up reel; and the two displacement tension rollers. a coupling means displaceably coupled to each other, and a coupling means provided in association with the coupling means so as to be displaceable in a direction different from the displacement direction of the displaceable tension roller, and the two displaceable tension rollers are connected oppositely to each other on the straight line. What is claimed is: 1. A tape-shaped recording medium reproducing apparatus, comprising means for winding the displacement tension roller around a part of the recording medium and separating it from the recording medium by displacing the displacement tension roller in a direction.