JPH02287902A - Rotary head device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotary head drum device that can be used in video tape recorders and the like.

Conventional technology FIG. 2 is a sectional view of a conventional rotary head drum device.

1 is a rotating drum, 2 is screwed to the rotating drum 1'c
A head base, 3 is a magnetic head fixed to the HERADO PACE 2, 4 is a printed board for the head fixed to the HERADO PACE 2, and the winding ends of the magnetic head 3 are soldered. 5
is inserted into the through hole of the rotating drum 10, and one end of the relay end 6a held by the head relay terminal μ is soldered to the printed board 4, and the other end is soldered to the rotating drum printed board 6, which will be described later. 6 is a printed board for the rotating drum placed on the upper surface of the rotating drum 1, 7 is a sleeve coaxially fitted to the rotating drum 1, 8 is a rotary transformer rotating side member fixed coaxially to the sleeve 7, and 9 is a rotary transformer rotating side member fixed coaxially to the sleeve 7. The rotary transformer rotation (11i) is a rotary transformer relay terminal fixed to the material 8, and the winding end of the rotary transformer rotating side member 8 is soldered to the base of the relay terminal 9a held by the rotary transformer, and the relay terminal 9a is The tip of the rotary drum is soldered to the printed board 6 for the rotating drum.

In the conventional rotary head drum device configured as described above, when the rotary drum 1 rotates, in the case of recording, a signal is sent to the rotary transformer rotating side member 8° relay terminal 9a, the rotary drum printed board 6. Relay terminal 6a, print board for head 4. The information is transmitted in the order of the magnetic head 3, and the reverse occurs during reproduction.

Problems to be Solved by the Invention However, the above configuration has the problem that there are many soldering points and a large number of parts in order to connect the rotary transformer rotating side member 8 and the magnetic head 3. .

In view of the above problems, the present invention provides a rotary head drum device that can reduce the number of soldering points and the number of parts.

Means for Solving the Problems In order to solve the above problems, a rotary head drum device of the present invention includes a magnetic head for recording and reproducing, a signal transmission relay printed board, and a head to which the magnetic head and the printed board are fixed. a base, a rotating drum to which the head base is screwed, a relay pin molded simultaneously with the rotating drum, and a sleeve coaxially fitted to the rotating drum;
A rotary transformer rotating side member coaxially fixed to the sleeve, a connector fixed to the rotary transformer rotating side member, and a relay terminal molded simultaneously with the connector, the magnetic head, a printed board, and a head base 9. A rotating drum unit composed of a rotating drum and a relay pin, the sleeve, a rotary transformer rotating side member, and a connector.

The relay pin is fitted into a rotating body unit constituted by a relay terminal, and is configured to bring a relay pin, which is molded at the same time as the rotary drum, and a relay terminal, which is molded at the same time as the connector, into fitting contact.

Function The present invention can reduce the number of soldering points and the number of parts by using the above-described configuration.

EXAMPLE Hereinafter, a rotary head drum device according to an example of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a rotary head drum device according to an embodiment of the present invention. 11
12 is a rotating drum, 12 is a head base fixed to the rotating drum 11 with screws, 13 is a magnetic head fixed to the head base 12, 14 is a printed board for the head fixed to the head base 12, and the winding end of the magnetic head 13 is A relay pin 11a, molded at the same time as the rotating drum 11, is soldered. 16 is a sleeve coaxially fitted to the rotating drum 11, 16 is a rotary transformer rotating side member coaxially fitted to the sleeve 16, 17 is a connector fixed to the rotary transformer rotating side member 16, and 17a is a connector 17. The ends of the windings of the rotary transformer rotating side member 16 are soldered to the relay terminals that are simultaneously molded.

The operation of the rotary head drum device configured as described above will be described below.

When the rotating drum 11 rotates, in the case of recording, a signal is transmitted to the rotary transformer rotating side member 16. Relay terminal 17a, relay pin 11a, head printed board 14. magnetic head 1
3, and in the case of playback, this is the reverse. Here, the relay pin 11a of the rotary drum 11 of this embodiment is connected to the head heath 12. Magnetic head 13. The rotating drum unit constituted by the print board 14 for the head is connected to the sleeve 15° and the rotary transformer rotating side member 16. By simply fitting the connector 17° into the rotating body unit constituted by the relay terminal 17a, the relay terminal 17a and the relay pin 11a come into fitting contact, which means that the number of soldering points is reduced and the rotary transformer rotating side member 16 is connected to the connector 17°. It is possible to realize conduction between the magnetic heads 13 and to reduce the number of parts.

As described above, according to this embodiment, it is possible to reduce the number of soldering points and the number of parts for the rotary head drum device.

Effects of the Invention As described above, the present invention can reduce the number of soldering points and the number of parts for a rotary head drum device.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a rotary head drum device according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional rotary head drum device. 11...Rotating drum, 11a...Relay pin, 12...Head base, 13...Magnetic head, 14...Printed board for head, 15
... Sleeve, 18 ... Rotary transformer rotating side member, 17 ... Connector, 17a
...Relay terminal.

Claims (1)

[Claims] A magnetic head for recording and reproducing, a signal transmission relay printed board, a head base to which the magnetic head and the printed board are fixed, a rotating drum to which the head base is fixed with screws, and a rotating drum molded simultaneously with the rotating drum. Relay pin and
A sleeve coaxially fitted to the rotating drum, a rotary transformer rotating side member coaxially fixed to the sleeve, a connector fixed to the rotary transformer rotating side member, and a relay terminal co-molded with the connector. A rotating drum unit composed of the magnetic head, printed board, head base, rotating drum, and relay pin is fitted into a rotating body unit composed of the sleeve, rotary transformer rotating side member, connector, and relay terminal. A rotary head drum device characterized in that a relay pin molded simultaneously with the rotary drum and a relay terminal molded simultaneously with the connector are brought into fitting contact.