CN1075814A

CN1075814A - Magnetic tape deck

Info

Publication number: CN1075814A
Application number: CN93101727A
Authority: CN
Inventors: 泽井国男; 森中孝治
Original assignee: Funai Electric Co Ltd
Current assignee: Funai Electric Co Ltd
Priority date: 1992-01-20
Filing date: 1993-01-20
Publication date: 1993-09-01
Anticipated expiration: 2013-01-20
Also published as: MY112559A; CN1032281C; KR930016989A; JP2549605Y2; JPH0561810U

Abstract

The present invention is used for making video-tape and audio frequency control head to keep stable and contact, and its measure is, even make the audio frequency control head in that be subjected to the outside or shake also can the fast return original position under the situation of load.

A kind of magnetic tape deck that the magnetic head chassis is housed is equipped with the audio frequency control head on this chassis, the end on above-mentioned chassis is fixed on the column, and this column passes the spring of a height-adjustable nut and the reinforcing that makes progress and is fixed on the base.The overhang bracket on above-mentioned chassis is on the taper side face of a circular cone dish, and this circular cone dish is fixed on the base, it is characterized in that, the hole of being passed by column on the elbow is square, and described elbow is downward-sloping.

Description

Magnetic tape deck

The present invention relates to a kind of magnetic tape deck that is installed in video tape recorder and the similar device thereof, these video tape recorders and similar device thereof can be recorded and upgrade inserting boxlike digital recording tape, boxlike audio cassette tape or boxlike video tape in the above-mentioned magnetic tape deck, more particularly, the present invention relates to a kind of like this magnetic tape deck, even this mechanism still can keep video-tape to contact with the stable of audio frequency control head when receiving load outside or vibrations.

Up to the present, tape transport commonly used, as shown in Figure 5 and Figure 6, be a magnetic head chassis 16 that audio frequency control head 15 is housed stably to be bearing on 3 points with a column 14 that is fixed on the base 13, promptly, nut 11 by an adjusting height on column 14, upwards afterburning spring 12 and a hypotenuse face 19 of circular cone dish 18, circular cone dish 18 also is fixed on the described base 13 that is supporting magnetic head chassis 16 head portions 20, thus, make the position of audio frequency control head 15 in the equal scalable of vertical and horizontal.

In above-mentioned traditional tape transport, a circular hole is arranged on the elbow part 22 on chassis 16, column 14 passes from this hole, and the bottom plate on elbow part 22 and chassis 16 is parallel.

With regard to above-mentioned prior art, when adding the load of outside or vibrations, between circular hole that is moved 21 on the elbow part 22 and static column 14, certain slit just occurs, and chassis 16 is difficult to return to original position.

Purpose of the present invention is exactly the defective that overcomes in the existing tape transport, even and provide a kind of and moved by outside or vibrations load, also can make magnetic head chassis 16 get back to the magnetic tape deck of original position fast.

In order to realize purpose of the present invention, and provide a kind of video recorder magnetic tape deck, there is a magnetic head chassis in this mechanism, the audio frequency control head is installed on this magnetic head chassis, one end on this chassis is installed on the column, this column is fixed on the base and by a nut and a upwards afterburning spring of regulating height the chassis is fixed, and with the side support of a circular cone dish on the top of this dish, it is characterized in that:

The hole of being passed by column on the elbow is a square hole, and elbow is downward-sloping.

After adopting said structure, because the hole of being passed by column on the elbow is square, and elbow part tilts with respect to following horizontal chassis, thereby, even produce power outside or vibrations, the elbow part that is moved also will keep local with the nut of regulating height and contact, and above-mentioned square hole will turn back to original position by the corrective action of himself, so the magnetic head chassis will quickly recover to original position,, video-tape contacts thereby keeping stable with magnetic head.

Be described in detail the present invention below in conjunction with accompanying drawing, therefrom can clearerly find out purpose of the present invention and feature.

Fig. 1 is one embodiment of the present of invention planimetric maps of some basic elements of character under normal conditions;

Fig. 2 is the front view of Fig. 1;

Fig. 3 is the planimetric map of one embodiment of the present of invention some basic elements of character under stressing conditions;

Fig. 4 is the front view of Fig. 3;

Fig. 5 is the traditional magnetic tape deck planimetric map of some basic elements of character under normal conditions;

Fig. 6 is the front view of Fig. 5;

Fig. 7 is the planimetric map of traditional magnetic tape deck some basic elements of character under stressing conditions;

Fig. 8 is the front view of Fig. 7.

The following describes the represented parts of some number designations:

3 expression magnetic head chassis, the chassis portion on 5 expression magnetic head chassis 3, the end on 6 expression magnetic head chassis 3, the elbow part on 7 expression

magnetic head chassis

3,8 expression square holes, the nut of height is regulated in 11 expressions, the spring that 12 expressions are upwards afterburning, 13 expression bases, 14 expression columns, 15 expression audio frequency control heads, 18 expression circular cone dishes, the cone side face of 19 expression circular cone dishes 18.

Below in conjunction with accompanying drawing, describe one embodiment of the present of invention in detail, its structure parts same as the prior art are with same numeral.

In Fig. 1 and Fig. 2, the plate of an audio frequency control head 15 bottom it is installed on the horizonal base plate 1, the round end stove bolt that passes the spring (not shown) in the marginal portion of this horizonal base plate 1 with 3 is fixed on the magnetic head chassis 3, and the end of horizonal base plate 1 contacts with a spherical surface body 4 that is fixed on the magnetic head chassis 3, so that make magnetic head 15 be in the optimum position.

The marginal portion on said head chassis 3 is installed on the column 14, and this column 14 is fixed on the base 13, and chassis 3 can upper and lowerly be regulated.Its end 6 is supported on the inclined-plane 19 of circular cone dish 18, and circular cone dish 18 is fixed on the base 13.

Further, said head chassis 3 is provided a power that make progress and rotating by spring 12, and in addition, the setting on magnetic head chassis 13 is to prevent that upwards the spring of reinforcing is deviate from from column 14, and regulates the height on chassis 3 by the setting nut 11 of adjusting height.

In addition, the hole of being passed by column 14 on the elbow 78 is square, and the past more end of elbow 7 is downward-sloping more.

In the structure of the foregoing description, hole that column 14 passed 8 is square, and is downward-sloping with the contacted elbow of setting nut 11 7, as depicted in figs. 1 and 2.

Even above-mentioned chassis 3 requires to be subjected to the load of outside or vibrations, and move certain distance, but, elbow 7 contacts because keeping local with setting nut 11, so this displacement will be corrected in square hole 8, chassis 3 is with the fast return original position, therefore, audio frequency control head 15 keeps firm contacting with the video-tape (not shown), as shown in Figure 3 and Figure 4.

As mentioned above, by using the present invention, again because the hole 8 that column 14 passed is square, with the elbow 7 on height-adjustable nut 11 contacted chassis 5 be downward-sloping, so even magnetic head chassis 3 is subjected to the load effect of outside or vibrations, but because elbow 7 and adjustable nut 11 keeps parts to contact, and 8 pairs of square holes mobile from normal moveout correction, make chassis 3 with the fast return original position, therefore, audio frequency control head 15 will keep firm contacting with video-tape.Equally, before the effect that is subjected to outside or vibrations load, audio frequency control head 15 also keeps firmly contacting with video-tape.

Claims

A kind of magnetic tape deck that the magnetic head chassis is installed, the audio frequency control head is installed on this chassis, the end on above-mentioned chassis is fixed on the column, this column passes the spring of a height-adjustable nut and the reinforcing that makes progress and is fixed on the base, the overhang bracket on above-mentioned chassis is on the taper side face of a circular cone dish, this circular cone dish is fixed on the base, it is characterized in that:

The said head chassis comprises following configuration; At its elbow part, the hole of being passed by column is a square hole, and described elbow is downward-sloping.