JPH01182913A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To prevent damage to a rotary head drum by providing a protection member to cover the upper part of the rotary head drum or the like. CONSTITUTION:The protection member 16 is provided to the upper part of the rotary head drum 1 in addition to the upper part of other components including the tape running system of the device. Thus, the rotary head drum 1 and other components are protected at mis-loading of a cassette 2 and adhesion of dust or dirt onto the major component of the device is prevented. Even if the device is used with upside down and the tape 3 is driven, the even of the unlocked tape 3 from the rotary head drum 1 or the like is prevented by the protection member 16, then the production of a flow on tape can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotary head type magnetic recording/reproducing device having a structure for protecting a rotary head drum and the like.

[Prior Art] FIG. 9 is a schematic side view of a conventional rotary head type magnetic recording/reproducing device, in which 1 is a rotating rad tram, 2 is a cassette, and 8 is a rotary head type magnetic recording/reproducing device.
1 is an upstream loading post, and 15 is a cassette holder.

Conventionally, in this type of apparatus, when the cassette holder 15 is opened, the rotary head drum and the like are exposed or nearly exposed to the outside of the apparatus, as shown in the drawing.

[Problems to be Solved by the Invention] As shown in FIG. 9, in the conventional rotary head type magnetic recording/reproducing apparatus as described above, even if the cassette 2 is incorrectly inserted vertically into the cassette holder 15, the rotary head tram l Since there was no protective member against the rotary head drum 1, there was an inconvenience that the rotary head drum 1 could be damaged by the cassette 2 inserted incorrectly.

In addition, in this type of magnetic recording/reproducing device, when the cassette holder 15 is open, the rotating head drum l is exposed to the outside of the device, or in a state close to that, so it is possible to accidentally touch the rotating head drum l with a finger. There was a drawback that it could be touched or dust could adhere to the rotating rad tram 1.

In order to solve the above problems, it is an object of the present invention to provide a magnetic recording/reproducing device equipped with a protection mechanism for preventing damage to a rotary head drum.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a protection member for the rotating mud drum and the like.

[Function] With the above configuration, by providing a protective member to cover the upper part of the rotating head drum, etc., the presence of the protective member prevents the rotation of the tape from the drum and the tape running even when the apparatus is upside down. It also prevents the cassette from falling out of the system, and even if you accidentally insert a cassette or something other than a cassette while the cassette holder is open, or if you accidentally put your finger in, it will prevent it from directly hitting the rotating drum drum, etc. This can protect the rotating head drum, etc.

[Example] FIG. 1 is a plan view showing a state in which a cassette 2 is normally loaded into a rotating head type magnetic recording/reproducing device, and FIG. FIG. 3 is a plan view showing a state in which the vehicle is loaded on its travel route.

In Figure 1, 1 is a rotating head tram, 2 is a tape 3
8 is an upstream loading post, 9 is a cassette having a
is the downstream rope ink post, 12 is the capstan, 1
3 is a pinch roller; 4° 5.6.7 is a guide for forming a tape path on the upstream side of the tape; 10, 11.14 is a guide for forming a tape path on the downstream side of the tape; and 15 is a cassette holter. Like this cassette 2, tape 3
If there are four parts such as 2a between the cassette 2 and the cassette 2, the rotary head drum l can fit into this space during tape loading, thereby making it possible to downsize the apparatus.

FIG. 2 shows a state in which the loading of the tape 3 has been completed, and the upstream and downstream loading posts 8.9 are located on the upstream and downstream sides of the rotary head drum 1, respectively.
The tape 3 is pulled out from the cassette 2 and wound around the rotary head drum 1 by a loading means (not shown). At this time, the cassette 2 is slid from the state shown in FIG. 1 to the rotating head drum l side by a sliding means (not shown) in conjunction with the pulling out of the tape 3, that is, tape loading, and the recess 2a of the cassette 2 is moved to the rotating head drum l. The device is constructed so that it can be inserted into the device, thereby reducing the size of the device.

FIG. 3 is a left side view of the cassette holder 15 opened from the state shown in FIG. FIG. 4 is a left side view of FIG. 1, showing a state in which the cassette holder 15 is loaded into the main body of the apparatus. FIG. 5 is a left side view of FIG. 2, showing the state after tape loading is completed, with the cassette 2 biting into the rotary head drum 1 and the protection member 16.

6 and 7 are diagrams for explaining the invention in detail, and show a plan view and a left side view of the device when the cassette holder 15 is opened and the cassette 2 is accidentally inserted vertically. be. In the figure, a protection member 16 prevents the incorrectly inserted cassette 2 from colliding with the rotating head drum l, thereby preventing damage to the rotating head drum l.

In the previous explanation, the protective member 16 was attached to the exterior of the device, but it is also possible to have a structure in which it is integrally molded with the exterior, and without increasing the number of parts.
The effect of protecting the rotary head drum 1 can also be realized. In addition, not only the upper part of the rotating head drum l, but also the
As shown in the figure, it is also possible to protect these by extending it to the upper part of the tape running system.

Furthermore, as clearly shown in FIGS. 2 and 5, since the protective member 16 has bitten into the recess 2a of the cassette 2,
Since the tip of the protection member 16 fits under the cassette lid 17, the cassette lid 17 can be prevented from falling.

In addition, this invention is applicable not only to a miniaturized magnetic recording/reproducing device with a sliding exterior, but also to a cassette 2
Needless to say, the present invention can also be applied to a rotating head type magnetic recording/reproducing device that does not involve movement.

[Effects of the Invention] As explained above, by providing a protective member on the top of the rotating head drum or, in addition, on the top of other components such as the tape running system of the device, it is possible to prevent the cassette from being inserted incorrectly. In addition to protecting the rotating head drum and other components of the device, it is also effective in preventing dust, dust, and other foreign matter from adhering to the main mechanical parts of the device.

In addition, the protective member prevents the tape from becoming detached from the rotating head drum, etc., if the device is accidentally used with the tape running upside down.
It also has the effect of preventing the occurrence of scratches on the tape.

[Brief explanation of the drawing]

Figure 1 is a plan view of a rotating head type magnetic recording/reproducing device loaded with a cassette, Figure 2 is a plan view of a state in which tape loading has been completed from the state shown in Figure 1, and Figure 3 is a plan view of a rotating head type magnetic recording/reproducing device. Fig. 4 is a side view of the state immediately after inserting the cassette into the recording/reproducing device; Fig. 4 is a left side view of the state of Fig. 1;
The figure is a left side view of the state shown in Fig. 2, and Fig. 6 is a plan view when the cassette is incorrectly inserted vertically into the cassette holder of the device.
7 is a left side view of the state shown in FIG. 6, FIG. 8 is a plan view showing a modified example of the protection member, and FIG. 9 is a schematic side view showing a conventional example. In the figure. l Two-turn head tram 2, cassette 3° tape 8: Upstream loading post 9: Downstream loading post 12: Capstan 13, pinch roller 15, cassette holder 16, protective member 17, cassette lid agent Patent attorney 1) North Haru Takeshi Figure 9

Claims (2)

[Claims] (1) In a magnetic recording and reproducing device that pulls out a tape from a cassette and loads it into a rotating head drum and tape running system, a protective member is provided to prevent the cassette from coming into contact with the rotating head drum when it is incorrectly inserted. A magnetic recording/reproducing device characterized by: (2) The magnetic recording/reproducing device according to claim 1, wherein the protective member is provided on the exterior of the device so as to cover the rotating head ram.