JPS6350954A - Tape threading mechanism - Google Patents

Abstract

PURPOSE:To improve reliability for an operation, by enabling a contact to be rotated against a link for moving the contact. CONSTITUTION:By rotating a cam 8 through a threading motor shaft 15, the links 7 and 6 are moved along a cam groove 9, and the contact 5 of the link 6 is engaged with a tab groove of the tip tab 4 of a cartridge tape 1. And in a state that the contact is engaged with tip tab 4, the links 6 and 7 make the contact 5 move along a locus, and contain the tip tab 4 being engaged with the contact 5, in the groove 13 of a machine reel 12. At this time, the contact 5 is positioned and fixed in the center axis of the machine reel 12. On the other hand, the tip tab 4 follows the rotation of the machine reel 12, then, it is rotated or stopped. At such a time, contact between the contact 5 and a tip tab groove 14 may happen, but, since the contact 5 is permitted to rotate to the link 6, and also, movement in an axial direction is suppressed at a minimum, it is possible to relax the state that the tip tab 4 is brought into contact with the contact 5 during the rotation of the machine reel 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape thread mechanism for a magnetic tape device that winds a leading end tab of a tape from a file reel to a machine reel.

[Conventional technology]

Conventionally, as a tape thread mechanism in this type of magnetic tape device, for example, there is a tape thread mechanism in which the leading end tab of the magnetic tape can be wound from a file reel to a machine reel, and in this case, a contactor connected to the leading end tab is used.
It was pulled out from the file reel and wrapped around the machine reel with its tip tab, but this contact was fixed to the link of the tape thread mechanism and could not rotate.

[Problems to be solved]

In the conventional tape thread mechanism described above, the contact whose tip tab is pulled out from the file reel and wound around the machine reel is fixed to the link for moving the contact, so the tip tab is integrated with the machine reel. When rotating, the tip tab contacts the contact and rotates, removing dust and dirt.
It has the disadvantage that it generates heat and other factors that affect other functions.

[Means for solving problems]

The present invention has been made by focusing on the above-mentioned conventional problems, and alleviates the contact between the tip end and the contact during the rotation of the machine reel, thereby eliminating dust, heat, and other factors that affect functionality. It is an object of the present invention to provide a tape thread mechanism that is capable of performing various operations and has high operational reliability.

To this end, the present invention provides a tape thread mechanism that includes a contact that is temporarily connected to a tip tab of a tape and winds the tip tab from a file reel to a machine reel, in which the contact is connected to a link for moving the contact. The present invention provides a tape thread mechanism characterized in that it is rotatably provided.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

1 to 4 are diagrams showing one embodiment of the present invention.

In the figure, l represents a cartridge tape, and a file reel 1a of this cartridge tape 1 is placed on the central shaft of a file motor 2.

The cartridge tape 1 is provided with a tip tab 4.

Reference numeral 12 denotes a machine reel, and this machine reel 12 is provided with a machine reel groove 13 for accommodating the tip tab 4 of the cartridge tape 1.

Further, a magnetic head 13 and tape guides 11 are arranged on both sides of the magnetic head 13 on the base plate 3.

Then, from the file reel 1a to the tape guide 11
, a magnetic head 10, and a tape guide 11 to a machine reel groove 13 of a machine reel 12, using a tape thread mechanism to guide and wind the tip tab 4 of the cartridge tape 1.

This tape thread mechanism includes a cam 8 provided on a thread motor shaft 15, a link 6.7 set to move along a cam groove 9 of the cam 8, and a tip tab 4 provided at the tip of the link 6. It consists of a contactor 5 that engages with a tab groove 14 of.

The contactor 5 is rotatably provided around an axis relative to the link 6, and its movement in the axial direction is restricted.

Next, to explain the operation, when the cam 8 is rotated via the thread motor shaft 15, the link 7.6 is rotated along the cam groove 9.
moves, and the contact 5 of the link 6 connects to the cartridge tape 1.
It engages with the tab groove 14 of the tip tab 4 of. Then, the link 6.7 moves the contact 5 along the trajectory while engaged with the tip tab 4, and the tip tab 4 engaged with the contact 5 is stored in the machine reel groove 13 of the machine reel 12. .

Here, the contactor 5 is positioned and fixed on the central axis of the machine reel 12.

On the other hand, the tip tab 4 rotates and stops depending on the rotation of the machine reel 12.

At this time, there is a risk that the contact 5 may come into contact with the tip tab groove 14, but since the contact 5 is made rotatable on the link 6 and the movement in the axial direction is made as small as possible, , the contact state between the tip tab 4 and the contactor 5 can be relaxed.

〔Effect of the invention〕

As explained above, since the present invention uses a rotatable contact for the link of the thread mechanism, the contact state between the tip tab and the contact is relaxed while the machine reel is rotating, and heat is generated. This has the effect of preventing the generation of dust, etc., eliminating the influence on other functions, and improving operational reliability.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged perspective view of the main part thereof, FIG. 3 is an enlarged perspective view of the main part showing the contact engagement state, and FIG. FIG. 3 is a partially cutaway perspective view. l: Cartridge table 4: Tip tab 5: Contacts 6, 7: Link 12: Machine reel 13: Machine reel groove

Claims (1)

[Claims] In a tape thread mechanism equipped with a contact temporarily connected to a tip tab of a tape and wound around the tip tab from a file reel to a machine reel, the contact is rotatably provided with respect to a link for moving the contact. Tape thread mechanism featuring.