CN87206330U - Cassette tape running direction transfer device - Google Patents

Abstract

The utility model relates to a transfer device for the magnetic-tape running direction. The utility model comprises bobbin disk shafts symmetrically arranged on both sides of the magnetic heads, a capstan shaft, a pinch roller, a transmitting component for the magnetic-tape running direction, and a pinch roller transmitting component; the transmitting component for the magnetic-tape running direction carries out the transmitting of the rotating transmission paths from the motor to each capstan shaft, and the pinch roller transmitting component interlocked with the transmitting component for the magnetic-tape enables that each pinch roller comes in contact with the corresponding capstan shaft. The height and the slant of the magnetic heads are controlled by a pair of supporting components for adjusting screws and two adjusting screws; the pair of supporting components for adjusting screws interlocked with the pinch roller transmitting component are symmetrically allocated on both sides of the magnetic heads, and the two adjusting screws are arranged on each supporting component for adjusting screws in the screwed connection.

Description

Cassette tape running direction transfer device

The invention relates to the direction of travel changing device for tape that can independently carry out orientation adjustment at each direction of travel of tape.

Tape its direction of travel of when walking is the blattnerphone of any one direction conversion to the left and right, wishes all that generally tape when any one direction walking, can both make magnetic head with respect to tape, produces contact in suitable tram.

This device that can carry out orientation adjustment has many kinds to be taken into account in the past.

But there is variety of issue in the device in past, for example, have much textural very complicated, and the initial setting operation is very difficult, in addition, lacks reliability or the like for long-term use.

Therefore, the purpose of the invention provides a kind of direction of travel changing device for tape, it is very complicated that its structure is unlikely, and the initial setting operation is easy, at tape under the situation of any one direction walking, can carry out orientation adjustment automatically so that magnetic head can contact with the suitable tram of tape, thereby the direction of travel changing device for tape that is rich in reliability is provided.

According to the invention, a kind of conversion equipment of tape direction of travel can be provided, this is a kind of at a pair of spool spindle of its each balanced configuration of magnetic head both sides, capstan and pinch roller, take this direction of travel changing device for tape of blattnerphone of the direction of travel of convertible tape, it possesses: can freely come and go be provided with movably, rotate the tape direction of travel translation building blocks that bang paths switch to two from motor to aforementioned each spool spindle; Be configured to freely come and go and move, with this tape direction of travel translation building block interlock under make pinch roller translation building block that aforementioned each pinch roller and corresponding capstan contact or leave etc., it is characterized by, dispose a pair of orientation adjustment screw supporting member with aforementioned pinch roller translation building block interlock in aforementioned magnetic head both sides left-right symmetric, and two orientation adjustment screws that on above-mentioned each supporting member, are being threaded respectively, nationality is with the motion of the above-mentioned pinch roller translation building block of correspondence, make above-mentioned each orientation adjustment screw supporting member one of support the side and adjust screw or the opposing party and adjust screw and combine with the both sides of the support plate of the aforementioned magnetic head of supporting selectively, thus the height and position and the degree of tilt of control said head.

In the accompanying drawings, the 1st figure is the direction of travel changing device for tape of an embodiment of the invention, the state planimetric map down of expression tape direction walking left, the 2nd figure is in identical device, tape is to the state planimetric map down of right walking, the 3rd figure is in same apparatus, the exploded perspective view of part around the magnetic head, the 4th figure is illustrated in the identical device, the planimetric map of the relation between pinch roller translation building block and the orientation adjustment screw supporting member, it is to be illustrated in the identical device that the 5th figure (a) reaches (b), the planimetric map of the relation between magnetic head supporting plate and the orientation adjustment screw, the 6th figure is illustrated in the identical device, the outboard profile of the relation between magnetic head supporting plate and the orientation adjustment screw.

The part of employed main number and expression thereof is in the accompanying drawing:

1 ... tape direction of travel translation building block; 13 ... the pinch roller translation building block;

20 ... magnetic head; 21 L, 21R ... orientation adjustment screw supporting member; 26La, 26Lb, 26Ra, 26Rb ... the orientation adjustment screw.

The embodiment of the invention is described below with reference to accompanying drawings.

The 1st figure is the main part of direction of travel changing device for tape among the embodiment of expression the invention.Among the figure 1 is tape direction of travel translation building block, this tape direction of travel translation building block 1 can freedom direction to-and-fro movement to the left and right, for example when tape is rolled to terminal, can control by the control system that does not show among the figure and make take-up direction from right to left, or from left to right.The situation of using manual operation to control is also arranged certainly sometimes.

Tape direction of travel translation building block 1 is when the right-hand position shown in the 1st figure, the media that utilizes gear 2,3R, 3L, 4L, 5L, 6L is delivered to the revolving force of the motor that do not show among the figure spool spindle 7L of left, in addition, tape direction of travel translation building block 1 is when the left shown in the 2nd figure moves, and above-mentioned motor revolving force transmits to right-hand spool spindle 7R via the media of gear 2,3R, 4R, 5R, 6R.

In addition, gear 5L, 5R are supported by the member 8L, the 8R that rotate by the center with spool spindle 7L, 7R respectively.Between two member 8L, 8R, be hung with extension spring 9, the elastic force of this spring 9 make gear 5L, 5R have towards with the trend of the intermeshing direction of gear 4L, 4R.

In addition, above-mentioned tape direction of travel translation building block 1 and the pass of two member 8L, 8R be, by curved tabs 10L, 10R and lip portions 11L, 11R, can electing property joint.Just translation building block 1 is when the right-hand position shown in the 1st figure, and right-hand curved tabs 10R to right-hand pushing, makes gear 5R be dragged away from gear 4R lip portions 11R, and the revolving force of motor just is delivered to the spool spindle 7L of left.On the contrary, translation building block 1 is when the left position shown in the 2nd figure, and the curved tabs 10L of left pushes lip portions 11L to left, make gear 5L be dragged away from gear 4L, and therefore, the revolving force of motor just is delivered to right-hand spool spindle 7R.

Be provided with conjugate foramen 12 on tape direction of travel translation building block 1, the pin 14 of pinch roller translation building block 13 engages with this conjugate foramen 12.This translation building block 13 utilizes axle 15, rotates to be supported in freely and will to use (with reference to the 3rd figure) on the member 23 in magnetic head assembling described later.Therefore, the reciprocating action interlock of translation building block 13 and translation building block 1 is the rotation about the center is done with the axle.In addition, about translation building block 13, be supported with elongated clavate spring 16, end engages with supporting pinch roller 17L, the pinch roller supporting member 18L of 17R, the pivoting end of 18R respectively about this clavate spring 16.Therefore, translation building block 1 is when the right-hand position shown in the 1st figure, and the pinch roller 17L of left contacts with the capstan 19L of left, and when translation building block 1 during in the left position shown in the 2nd figure, right-hand pinch roller 17R contacts with right-hand capstan 19R.No matter that a kind of situation, each pinch roller is all supplied with by clavate spring 16 power that presses of capstan.

Be provided with orientation adjustment screw supporting member 21L, 21R at the two ends of magnetic head 20.It is that freely rotate at the center that each member 21L, 21R are configured to axle 22L, 22R.And two axle 22L, 22R are equipped with on the tabular component 23 magnetic head 20, that can freely move forward and backward by endways being arranged on shown in the 3rd figure.

About supporting member 21L, 21R on, shown in the 4th figure, be provided with junction surface 24L, 24R, these junction surfaces 24L, 24R can engage one another with junction surface 25L, the 25R of the left and right end portions position of being located at pinch roller translation building block 13.At the pivoting end of each orientation adjustment screw supporting member 21L, 21R, each a pair of direction is adjusted screw 26La, 26Lb before and after being provided with; 26Ra, 26Rb combine with screw thread.

In addition, on above-mentioned tabular component 23, be equipped with the assembling stand of making by synthetic resin 27.In this left and right end portions position above assembling stand 27, be provided with guiding teat 28L, the 28R of outstanding square column type.In addition, on assembling stand 27, dispose reclinate plate-shaped springs 29 and magnetic head supporting plate 30 successively, on support plate 30, be fixed with above-mentioned magnetic head 20.Plate-shaped springs 29 and support plate 30 have left and right end portions pilot hole 32L, 32R; 33L, 33R, these pilot holes and above-mentioned guiding teat 28L, 28R are chimeric mutually, are free to move up and down.In addition, form outstanding upward swelling part 34L and 34R in the left and right end portions position of support plate 30.

The 5th figure (a) and (b) are used for representing direction adjustment screw 26La, 26Lb; Relation between 26Ra, 26Rb and swelling part 34L, the 34R.

That is, pinch roller translation building block 13 with about orientation adjustment screw supporting member 21L, 21R be in the engagement relationship shown in the 4th figure, therefore when pinch roller translation building block 13 turns to right-hand state shown in the 1st figure, shown in the 5th figure (a), the member 21L of left forwards rotates, and right-hand member 21R rearward rotates.Therefore, shown in the 6th figure,, contact with each other in the orientation adjustment screw 26Lb of rear position and the top of swelling part 34L at left; Right-hand, contact with each other in the orientation adjustment screw 26Ra of anterior position and the top of swelling part 34R, these two screw 26Lb, 26Ra can be used to the height and position and the degree of tilt of control head 20.In addition, when pinch roller translation building block 13 when left rotates into state shown in the 2nd figure, shown in the 5th figure (b), the member 21L of left rearward rotates, right-hand member 21R forwards rotates, consequently, at left, in the orientation adjustment screw 26La of anterior position with right-hand, orientation adjustment screw 26Rb in the rear position contacts with the top of swelling part 34L, 34R respectively, and these two screw 26La, 26Rb can be used to the height and position and the degree of tilt of control head 20.

Utilize above-mentioned structure, during tape direction walking left, the height and position of magnetic head 20 and degree of tilt are controlled by orientation adjustment screw 26Lb, 26Ra, and tape is when right-hand walking, and the height and position of magnetic head 20 and degree of tilt are controlled by orientation adjustment screw 26La, 26Rb.And these 4 screws can be rotated adjustment independently of each other, so tape can carry out orientation adjustment and make magnetic head 20 for tape when the walking of any one direction, produce contact in suitable tram.

As mentioned above, the direction of travel changing device for tape that provides according to the invention, not only structure is very simple, and the setting operation at initial stage is very convenient, and is not subjected to the restriction of tape direction of travel, and each direction can independently be carried out orientation adjustment, in the situation that tape is walked to any one direction, can make magnetic head for tape, contact automatically in suitable tram, therefore can provide reliability very high direction of travel changing device for tape.

Claims (1)

1, a kind of conversion equipment of tape direction of travel, this is a kind of at a pair of spool spindle of the both sides of its magnetic head difference balanced configuration, capstan and pinch roller, with the direction of travel changing device for tape of the blattnerphone of the direction of travel of this convertible tape, it possesses: be configured to freely to come and go move, rotate the tape direction of travel translation building blocks that bang paths are changed to two from motor to aforementioned each spool spindle; Be configured to freely come and go and move, with this tape direction of travel translation building block interlock under make aforementioned each pinch roller capstan corresponding contact or leave with it the pinch roller translation building block, it is characterized by, dispose a pair of orientation adjustment screw supporting member with aforementioned pinch roller translation building block interlock in aforementioned magnetic head both sides left-right symmetric, and two orientation adjustment screws that on above-mentioned each support member, are being threaded separately, nationality is with the motion of the above-mentioned pinch roller translation building block of correspondence, the adjustments screw of adjusting screw or the opposing party that above-mentioned each orientation adjustment screw supporting member one of supports the side is combined with the both sides of the support plate of the aforementioned magnetic head of supporting selectively, thereby control the height and position and the degree of tilt of said head.

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