JPH07105098B2 - Record reconstructor - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus, and more particularly to a rotary head type recording / reproducing apparatus suitable for simplifying a tape loading mechanism and downsizing the apparatus.

[Conventional technology]

A magnetic recording device such as a VTR of a helical scan system using a rotary magnetic head has a cylinder equipped with a rotary magnetic head fixed as described in Japanese Patent Publication No. 56-47623, for example. The loading mechanism was activated and the tape was wound around the cylinder.

On the other hand, in recent years, with the spread of VTR integrated cameras and the advent of digital audio devices, the diameter of the cylinder has been reduced. Due to the downsizing and weight reduction of this cylinder, a part of the cylinder is opened in the tape cassette opening. The magnetic recording / reproducing apparatus can be miniaturized by positioning the magnetic recording / reproducing apparatus.

[Problems to be solved by the invention]

In the above-mentioned prior art, since the tape is loaded onto the fixed cylinder, the loading mechanism is complicated, and the size of the device is large even when the cylinder is partially positioned at the opening of the tape cassette. Although the tape can be made smaller, the tape loading mechanism remains complicated and has a large number of parts.
It is also a problem to reduce the weight of the device.

It is an object of the present invention to provide a recording / reproducing apparatus which solves the above-mentioned problems of the prior art, simplifies the loading mechanism, and is downsized and lightweight.

[Means for solving problems]

The purpose is to move the cylinder toward the opening of the tape cassette, attach the tape guide position regulating member, the fixed head, and some tape guides on the base on which the cylinder is mounted. This is achieved by fixing the tape on a support member whose one end is rotatably supported, and loading the tape by an operation of moving and fixing the support member in the chassis direction.

[Action]

When a support member that supports a base on which a cylinder or the like is mounted is fixed by rotating the other end toward the chassis with one end as a fulcrum, the tape is wound around a predetermined position of the cylinder by a simplified loading mechanism.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a magnetic recording / reproducing apparatus according to the present invention, showing a state before tape loading.

2 is a plan view for explaining the tape loading operation, and FIG. 3 is a front view showing the tape loading completion state.

1 to 3, 1 is a chassis, 2 is a tape cassette, 3 is a thin portion of a supporting member, 4 is a supply reel,
5 is a take-up reel, 6 is a tape, 7 is a cylinder, 8 is a cylinder entrance side guide position restricting member, 9 is a cylinder exit side guide position restricting member, 10 is a base, 11 is a supporting member, 12, 14 and 25 are pins. , 15 is a catcher, 16 is a capstan, 17 is a pinch roller, 18 is a loading cam, 19 is a drive cam, 20 is a lever (connecting member), 21 and 22 are protrusions, 23 is a lever, 24 is a tape guide, 26 is an entrance side width regulation guide, and 27 is an exit side width regulation guide.

In FIG. 1, a chassis 1 is fixed to the apparatus main body side, and a tape cassette 2 is positioned and mounted on the chassis 1 by a known means. The tape 6 of the tape cassette 2 is stretched from the supply reel 4 to the take-up reel 5 and stretched in front of the opening of the tape cassette 2 before the start of loading. The cylinder 7 is mounted on the base 10 together with the cylinder entrance side guide position restricting member 8 and the cylinder exit side guide position restricting member 9.

The base 10 is a support member 11 made of a material such as plastic.
Is stuck to. The base 10 and the support member 11 may be fixed to each other by means such as pin or screw fixing, press fitting, or outsert.

Further, one end of the support member 11 is made thin and is elastically deformable, and its tip end is fixed to one end of the chassis 1 by a pin 12. As a result, the support member 11 is
When the thin portion 3 is deformed with 12 as the fulcrum, the chassis 1
It can be rotated in any direction.

When loading the tape, the drive gear 19 is driven by a drive motor (not shown) or the like, and the loading cam 18 engaged with the drive gear 19 is rotated clockwise. The loading cam 18 is provided with a convex portion 21, and the convex portion 21 and one end of a lever 20 as a connecting member are rotatably locked. The other end of the lever 20 is also rotatably locked to a protrusion 22 provided on the other end of the support member 11. This lever 20 is also made of a flexible material such as plastic.

When the loading cam 18 rotates clockwise, the lever 20
Are moved to the bottom of the figure. By moving this lever 20,
The thin portion 3 on one end side of the support member 11 is deformed and the support member 11 rotates in the chassis 1 direction. This allows the cylinder 7
Comes close to the opening of the tape cassette 2, and a part of the cylinder 7 is located in the opening. This state is shown in FIG.

In the state shown in FIG. 2, the pin 14 fixed to the base 10 contacts the catcher 15 fixed to the chassis 1 to position the base 10 with respect to the chassis 1.

4 and 5 are explanatory views of the positioning portion of the base with respect to the chassis, FIG. 4 is a perspective view showing a state before positioning, and FIG. 5 is a perspective view showing a state after positioning.

In FIG. 4, a pin 14 is fixed to the base 10 together with a leaf spring 28, while a catcher 15 is fixed to the chassis 1. The pin 14 of the base 10 approaches the catcher 15 of the chassis 1 as indicated by the arrow by the operation described in FIG.

When the base 10 is at its final position with respect to the chassis 1, as shown in FIG. 5, the pin 14 is fitted into the wedge-shaped portion 15 of the catcher 15 to position the base 10 in the horizontal direction. At this time, the leaf spring 28 of the base 10 is moved to the catcher 15
And the chassis 1 are elastically fitted, and the base 10 is positioned in the vertical direction (vertical direction).

Although the leaf spring 28 is used to perform the vertical positioning, a flexible material such as plastic forming the support plate 11 is used to extend the support plate so that the leaf spring portion has a protrusion. Alternatively, a plastic protrusion may be provided instead of the leaf spring 28 of the base 10. Since this portion controls the horizontal and vertical positions between the base and the chassis, various configurations other than the above are conceivable.

Next, returning to FIG. 2, the tape loading will be described in more detail.

Figure 2 shows the tape wrapped around a cylinder,
When the loading cam 18 rotates clockwise from this state, the lever 20 is pulled, the elastic force of the lever 20 causes the pin 14 to be pressed against the catcher 15, and the chassis 1 and the base 10 are fixed. Further, at this time, the lever 23 engaged with the cam groove (not shown) of the loading cam 18
Rotates counterclockwise about the pin 25 as an axis, and the tape guide 24 provided at the tip of the lever 23 rotates counterclockwise to form a tape running path.

By the rotation of the loading cam 18, the entrance side width regulation guide 26, the exit side width regulation guide 27, and the pinch roller 17 are respectively moved by the means such as a link mechanism (not shown) to the cylinder entrance side guide position regulating member 8. , The cylinder outlet side guide position restricting member 9 and the capstan 16 are moved to be pressed against them.

FIG. 3 shows a state in which loading is completed.

In the above explanation, after the pin 14 contacts the catcher 15,
Tape guide 24, Entry side width regulation guide 26 Ejection side width regulation guide
Although it has been stated that the movement of the pinch roller 17 and the pinch roller 17 is started, the present invention is not limited to this, and these members are configured to start moving from the stage before the contact between the pin and the catcher or at the same time as the start of loading. You can do it.

The tape unloading is performed by the reverse operation of the loading operation described above. That is, unloading is performed by reversing the drive motor and reversing the drive gear 19.

The above-described embodiment is a power source for tape loading,
Although the driving motor is used, the elastic force of the thin portion 3 of the supporting member 11 may be used instead.

That is, the driving gear 19 shown in FIG. 1 is omitted, for example, the supporting member 11 is manually pushed in the direction of arrow A and the loading cam 18 is rotated via the lever 20 to perform loading. In this case, the loading cam 18
An appropriate stopper is required to stop the rotation of the. At the time of unloading, this stopper may be removed and the support member 11 may be rotated in the direction opposite to the arrow A by its elastic restoring force.

〔The invention's effect〕

As described above, according to the present invention, the tape loading mechanism can be simplified and reliable loading and unloading can be performed with a small number of parts. The present invention can be applied to a helical scan type magnetic recording / reproducing apparatus equipped with a cylinder to greatly enhance the effect.

[Brief description of drawings]

1 is a plan view of a tape loading state showing an embodiment of the present invention, FIG. 2 is a plan view showing a state during the tape loading operation of FIG. 1, and FIG. 3 is a tape loading completion state of FIG. FIGS. 4 and 5 are explanatory views of the positioning portion of the base with respect to the chassis, FIG. 4 is a perspective view showing a state before positioning, and FIG. 5 is a perspective view showing a state after positioning. is there. 1 ... Chassis, 2 ... Cassette, 6 ... Tape, 7 ...
… Cylinder, 10 …… Base, 11 …… Supporting member, 14 …… Pin, 15 …… Catcher, 18 …… Loading cam, 20…
…lever.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-142773 (JP, A) JP-A-62-165312 (JP, A) Actual opening 61-121542 (JP, U) Actual opening Sho-51- 18104 (JP, U) Actual public 47-3578 (JP, Y1)

Claims (3)

[Claims] 1. A recording / reproducing apparatus for recording / reproducing by winding a tape of a cassette tape around a cylinder having a rotary head mounted thereon, comprising: a first chassis having a tape loading mechanism and a tape drive mechanism for mounting and holding a cassette; A second chassis mounted with the cylinder and movably supported with respect to the first chassis; and a second chassis provided on the second chassis at a position where the second chassis has finished moving, A tape guide position regulating member that regulates the position of the tape guide that draws the tape out of the cassette, a loading cam that is provided on the first chassis and that is driven by a drive source, the second chassis, and the loading cam. The tape pull-out guide that pulls out the tape from the cassette, driven by the loading cam and the connecting member that connects When a first positioning member provided on said first chassis, is provided on the second chassis, engages with the first positioning member, said second to said first chassis
A second positioning member that regulates the relative position of the chassis, and by the drive of the loading cam, the movement of the second chassis in the direction of the first chassis and the tape guide are interlocked to each other. A recording / reproducing apparatus characterized by being wound around a predetermined position of a cylinder at a predetermined angle. 2. The recording / reproducing apparatus according to claim 1, wherein the drive source for driving the loading cam is movement of the second chassis by an external drive force, and A recording / reproducing apparatus in which the loading cam is driven in association with movement. 3. The recording / reproducing apparatus according to claim 1 or 2, wherein the second chassis is rotatably supported with respect to the first chassis. Recording / playback device.