KR970010523B1 - Drum of tape recorder - Google Patents

Abstract

The drum of tape recorder rotates rotating disk(57) by rotation of rotating axes(51) by a drum motor, and linear guide(58) which is inserted to rotating disk(57) according to the rotation of the rotating disk(57) rotates according to the groove(68) of upper drum(67). As the linear guide(58) rotates, the first rotating member(60) which inserted and rotated to linear guide(58) is coupled with the second rotating member(64) to be rotated, and the second rotating member(64) rotates by inclination according to the slope grooves(55) formed internal side of lower drum(53) slopely. According to the rotate of the second rotating member, head(63) rotates to incline, and records signal in cassette tape(62) or replays the recorded signal.

Description

Drum of tape recorder

1 is a plan view schematically showing a part of a typical tape recorder.

2 is a cross-sectional view showing a drum of a tape recorder according to the prior art.

3 is a front view showing a state in which a cassette tape is loaded into the drum shown in FIG.

4 is a cross-sectional view showing a drum of a video tape recorder according to the present invention.

5 is a plan view of the drum shown in FIG.

FIG. 6 is a front view showing a state where the cassette tape is loaded into the drum shown in FIG.

* Explanation of symbols for the main parts of the drawings

50: drum 51: rotation axis

52: bearing 53: lower drum

54: Stator trance 55: Inclined groove

56: rotor transformer 57: rotating disk

58: linear guide 59: rotary transformer

60: first rotating member 61: support member

62: cassette tape 63: head

64: second rotating member 65: ball bearing

66: coupling member 67: upper drum

68: hole 69: fixing member

70: guide groove

The present invention relates to a drum of a tape recorder, and more particularly, to vertically fix an upper drum and a lower drum, and to rotate a head installed therein to be inclined so that a signal can be recorded on a cassette tape or a recorded signal can be reproduced. The present invention relates to a drum of a tape recorder, by which an inclined pole for inclining the cassette tape to the drum is not required, thereby simplifying the internal structure of the deck and reducing the production cost.

In general, a traveling system for driving a tape cassette in a tape recorder includes a supply and take-up rails 12 and 13 for transferring the tape 11 of the cassette to both sides on the deck 10, as shown in FIG. A drum 14 for recording a signal or reproducing the recorded signal is provided on the tape 11 of the cassette seated on the deck 10.

In addition, a tension arm 16 having a tension port 15 formed at a free end thereof is provided on the left side of the drum 14 so as to adjust the tension of the cassette tape 11. A guide impedance roller 17 is provided.

On the other hand, on both sides of the deck 10 near the drum 14, the drum 14 through the guide roller 20 and the warp pole 21 of the pole base 19 loaded along the loading groove 18 on the deck 10. The cassette tape 11 is guided to the side.

Also, on the right side of the drum 14, a middlepool 22 for changing the running direction of the cassette tape 11 is fixed on the deck 10, and a capstan shaft for feeding the cassette tape 11 at a constant speed ( 23) and a pinch roller 24 is provided, and the review polo 25 is adjusted so that the cassette tape 11 is conveyed along the traveling path of the deck 10 due to the mechanical characteristics of the deck 10. This fixed review arm 26 is provided.

In the tape recorder configured as described above, in the play mode, the tape cassette 11 moves from the supply rail disk 12 to the tension pole 15 of the tension arm 16, the impedance roller 17, and the guide roller of the pole base 19. 20 and the inclined polyol 21 are loaded onto the drum 14, and the cassette tape 11 transferred to the drum 14 is guide roller 20 and the inclined polyol 21 of the pole base 19. ) Is wound around the take-up rail disc 13 via the capstan shaft 23 contacted by the pressure of the middle pole 22, the pinch roller 24, and the review pole 25 of the review arm 26.

The drum 14 records the signal or reproduces the recorded signal on the cassette tape 11 which runs along the predetermined path as described above.

In the conventional drum used in the tape recorder, as shown in FIG. 2, the upper drum 28 is directly fixed to the upper end of the rotating shaft 27 rotated by the drum motor (not shown). 28, the boss 32 formed with the boss groove 31 is formed to extend from the head mounting surface so that the boss 30 of the lower drum 29 is inserted, and the lower end of the boss 32 has a rotor transformer ( 33) is attached, and a magnetic head 34 is attached to the head attaching surface by a screw 35 as a fastening member.

In addition, a bearing 36 through which the rotating shaft 27 penetrates is provided at the lower side of the upper drum 28, and a rotary shaft 27 penetrates at the lower side thereof. The lower drum 29 is formed, and the lower drum 29 is installed on the deck of the tape recorder while being mounted on the drum base (not shown).

In addition, the rotor transformer 33 and the stator transformer 37 are installed to rotate in the state in which the rotor transformer 33 is rotated in close proximity to each other to form a rotary transformer 38.

On the other hand, the magnetic head 34 and the rotor transformer 33 are directly connected by the wire (not shown) end of the rotor transformer 33.

In addition, a spacer ring 40 is inserted between the boss groove 31 of the upper drum 28 and the bearing 36 on the upper end of the lower drum side boss 30, and the boss 30 on the lower drum 29 side is inserted. The spring washer 41 is interposed between the bearing 36 at the lower end and the bush fixed to the rotation shaft 27.

However, the drum of the conventional tape recorder constructed as described above is shown in FIG. 3, and the drum is mounted 12.8243 [deg.] On the deck to record or record signals on the cassette tape guided by the guide pole and the slope pole. When the signal is reproduced, this is because the cassette tape is driven in a twisted state with respect to the drum, thereby degrading the image quality of the tape recorder.

In addition, in order to record a signal on a cassette tape or to reproduce the recorded signal, a guide pole and an inclined pole are required, and the structure of the deck has a problem in that the production cost increases.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to vertically fix an upper drum and a lower drum on a deck, and rotate a head installed therein to incline a signal to the cassette tape. It is possible to provide a drum of a tape recorder capable of recording or reproducing the recorded signal, thereby simplifying the structure of the deck and reducing the production cost.

Further, another object of the tape recorder drum according to the present invention is to provide a drum of a tape recorder which can improve the image quality of the tape recorder by fixing the drum vertically on the deck.

A feature of the tape recorder drum according to the present invention for solving the above problems is, in the drum of a video tape recorder having a rotating shaft which is coupled to a bearing inside the lower drum and rotates in a predetermined direction, the outer peripheral surface of the rotating shaft. Rotating by pressing and rotating, the rotary disk is provided with a rotary transformer in the lower portion, the linear guide is coupled to the outer peripheral surface of the rotating disk and rotated, the guide groove of a predetermined shape is formed in the inner side, and the guide groove of the linear guide And a first rotational member rotating downward, coupled to an outer circumferential surface of the first rotating member to rotate up and down, a support member supporting a head, and a second pivoting member configured to rotate the head coupled to the support member. Fixing the rotating member, the lower drum formed with the inclined groove for guiding the second rotating member and the lower drum and the upper drum It has a point provided with a holding member.

In addition, the inclined groove of the lower drum is preferably formed to be inclined to the inner peripheral surface of the lower drum.

Below. A preferred embodiment of a tape recorder drum according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a cross-sectional view showing a drum of the tape recorder according to the present invention, in which the drum 50 is mounted with bearings 52 above and below an outer circumferential surface of a rotating shaft 51 rotated by a drum motor (not shown). The lower drum 53 is attached to the outer circumferential surface of the bearing 52.

In addition, a stator transformer 54 is provided on an upper portion of the lower drum 53. An inclined groove 55 is formed on an inner circumferential surface of the lower drum 53 so as to be inclined by a predetermined angle. The outer circumferential surface is formed to be inclined at a predetermined angle.

On the other hand, a rotary disk 57, into which the rotor transformer 56 is bonded by an adhesive, is press-fitted on the upper outer peripheral surface of the rotating shaft 51, and a cylindrical linear guide 58 is mounted on the outer peripheral surface of the rotating disk 57. have.

In addition, the rotor transformer 56 and the stator transformer 54 are installed to rotate in the state in which the rotor transformer 56 is rotated in close proximity to each other to form a rotary transformer 59.

In addition, the first rotation member 60 is inserted into the linear guide 58 so as to be rotatable, and the support member 61 is coupled to the outside of the first rotation member 60, and the support member ( 61 is provided with a head 63 for recording signals on the cassette tape 62 or reproducing the recorded signals.

In addition, the outer side of the first rotating member 60 is coupled to the second rotating member 64 which rotates to be inclined along the inclined groove 55 of the lower drum 53, the second rotating member 64 The lower portion is provided in the ball bearing 65 so that the second rotating member 64 can be easily rotated along the inclined groove 55.

In addition, the support member 61, the first rotating member 60, and the second rotating member 64 are firmly coupled by the coupling member 66.

On the other hand, the upper drum 67 is formed with a hole 68, the linear guide 58 is inserted into the hole 68 is rotated.

In addition, a fixing member 69 for fixing the upper drum 67 and the lower drum 53 is provided at one side of the upper drum 67 and the lower drum 53.

5 is a plan view showing a drum of the tape recorder according to the present invention, in which a hole 68 is formed inside the upper drum 67, and the linear guide 58 is inserted into the hole 68 to rotate. .

In addition, a guide groove 70 is formed in the linear guide 58, and the first rotation member 60 is inserted into the guide groove 70 to rotate up and down.

In the drum of the tape recorder according to the present invention configured as described above, the rotating disk 51 is pressed into the rotating shaft 51 while the rotating shaft 51 is rotated by a drum motor (not shown), thereby rotating the rotating disk 57 As the) rotates, the linear guide 58 pressed into the rotating disk 57 also rotates along the hole 68 of the upper drum 67.

In addition, as the linear guide 58 rotates, the second rotating member 64 connected to the first rotating member 60 inserted and rotated in the linear guide 58 rotates in association with the second rotating member 64. ) Is rotated to be inclined along the inclined groove 55 formed to be inclined on the inner peripheral surface of the lower drum (53).

And, as the second rotary member 64 rotates inclinedly, the head 63 coupled by the second rotary member 64 and the coupling member 66 also rotates to incline to record signals on the cassette tape 62. The recorded signal is played back.

Therefore, the drum of the tape recorder as described above is fixed vertically by using the fixing member 69 on the deck (not shown), as shown in FIG. The head 63 provided inside is rotated to incline to record a signal on the cassette tape 62 or to reproduce the recorded signal.

Therefore, it is not necessary to mount an inclined pole for inclining the cassette tape 62 on the outer circumferential surface of the drum 50 so that the structure of the deck can be simplified and the production cost can be reduced.

In addition, the drum 50 is vertically fixed on the deck to record the signal of the cassette tape 62 or to reproduce the recorded signal, thereby improving image quality.

As described above, according to the drum of the tape recorder according to the present invention, the drum is fixed vertically on the deck, and the head installed inside the drum is rotated to be inclined to record the signal on the cassette tape or to reproduce the recorded signal. It is possible to easily record the signal of the cassette tape or reproduce the recorded signal without mounting the inclined pole to be inclined on the outer peripheral surface of the deck structure has the effect of reducing the production cost can be simplified.

In addition, since the cassette tape does not have to be inclined to be inclined on the outer circumferential surface of the drum, there is an effect of improving the image quality of the tape recorder.

Claims (6)

A drum of a video tape recorder having a rotating shaft which is coupled to a bearing inside a lower drum and rotates in a predetermined direction; A plurality of linear guides rotatably fixed to the outer circumferential surface of the rotating shaft and rotated to rotate a rotary transformer formed on the lower portion, coupled to the outer circumferential surface of the rotating disk, and formed with guide grooves having a predetermined shape therein; A first rotating member which rotates up and down according to the guide groove of the linear guide, a support member which is coupled to an outer circumferential surface of the first rotating member to rotate up and down, and supports a head, and a head coupled to the support member And a lower drum having a second rotating member for rotating the upper and lower parts, an inclined groove for guiding the second rotating member to be inclined at a predetermined angle, and a fixing member for fixing the hollow upper drum and the lower drum. Drum of tape recorder provided. The drum of claim 1, wherein the guide groove is formed in a c shape. The drum of claim 1, wherein a lower portion of the upper drum is inclined at a predetermined angle. The drum according to claim 1, wherein the inclined groove formed in the lower drum is formed to be inclined to the inner circumferential surface of the lower drum. The drum of claim 1, wherein an upper portion of the lower drum is inclined at a predetermined angle. The drum of claim 1, wherein a ball bearing is formed under the second rotating member to smoothly rotate the head connected to the second rotating member along the inclined groove.