JPS6022026Y2 - Magnetic tape winding device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a magnetic tape winding device that winds a magnetic tape around a flangeless bubble without winding disorder.

Conventionally, in a magnetic tape winding device that cuts an original magnetic tape to a predetermined width dimension and winds the tape to a predetermined length around a flangeless bubble, it is necessary to prevent winding from occurring in the width direction of the magnetic tape. , in order to wind the magnetic tape in an orderly manner.
Although various means have been proposed, they have drawbacks such as complicated structures, troublesome assembly work, and difficulty in maintenance and inspection.

The object of this invention is to eliminate the above-mentioned drawbacks, simplify traversal and assembly, facilitate maintenance and inspection, and provide a magnetic tape winding device that can wind magnetic tape in an orderly manner.

Embodiments of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a magnetic tape, which is formed by cutting an original magnetic tape (not shown) into a predetermined width dimension W.
Each tape is passed through a tape guide 2 and wound around a flangeless bubble 3.

The flangeless bub 3 is attached to a take-up drive shaft 4 rotated by a drive source (not shown) so as to be rotatable at the same time and at a predetermined interval in a detachable manner.

Reference numeral 5 designates a magnetic guide member, for example, a highly flexible polyester sheet whose surface is coated with a slipping material is provided with a tapered surface 6 that widens from the tip end 5a to the base end 5b as shown in FIG. It is formed into a cylindrical shape and is easily deformed elastically.

The elastic guide member 5 is fixed at its proximal end 5b to the support rod 7, which is disposed opposite to the winding drive shaft 4, by a fixing member 8 such as an adhesive tape, as shown in FIG. The outer circumferential tapered surface 6 is disposed so as to be in sliding contact with both ends of the magnetic tape 1.

In the above configuration, as the take-up drive shaft 4 rotates, the magnetic tape wound around the outer periphery of the flangeless bub 3 has both ends slidably contacted with the outer periphery tapered surface 6 of the elastic guide member 5.

In this case, the cross-sectional shape of the elastic guide member 5 is elastically deformed from a perfect circle shown in FIG. 4a to an oval shape as shown in FIG. 4b.
An elastic restoring force is applied to both ends of the magnetic tape 1, which reduces the widthwise fluctuation of the magnetic tape 1 during winding.
In other words, it is possible to prevent the winding from being disordered and to wind it up in an orderly manner.

Since the elastic guide member 5 has a tapered surface 6 in which the diameter of the base end 5b is larger than that of the distal end 5a, it is possible to cope with winding irregularities that increase as the winding diameter increases. Regardless of the inner or outer circumference of 1, winding can be done in an orderly manner without any disorder.

Since the surface of the elastic guide member 5 is coated with a slippery material, smooth sliding contact with low friction is possible.
Both edges of the magnetic tape 1 are not damaged.

In the above embodiment, the elastic guide member 5 is described as having a cylindrical shape with a tapered surface 6, but the elastic guide member 5 according to this invention is not limited to this, and as shown in FIG. The same effect as in the above embodiment can be obtained even if a cross-sectional shape having an inverted U-shape and a tapered surface 6 that widens toward the end is used.

As explained above, compared to conventional devices of this type, this invention has the advantage of being simpler in structure and assembly, easier to maintain and inspect, and able to wind the magnetic tape in an orderly manner.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of this invention, Fig. 2 is a perspective view of the elastic guide member, Fig. 3 is an overall plan view, and Figs. 4a and 4b are comparative illustrations of the deformed state of the elastic guide member. , FIG. 5 is a perspective view showing another embodiment of the elastic guide member. 1...Magnetic tape, 3...Hub, 4.
... Winding drive shaft, 5 ... Elastic guide member,
5a... tip, 5b... base end, 6.
...Tapered surface, 7...Support rod.

Claims (1)

[Scope of utility model registration request] The magnetic tape winding knob 3 of the winding drive shaft 4 is rotatably and detachably attached, and the winding drive shaft 4 is rotated to wind the magnetic tape 1 around the bubble 3. In the winding device, an elastic guide member 5 having a tapered surface 6 that widens toward the end from a distal end 5a to a base end 5b is provided, and the base end 5b of the guide member 5 is supported opposite to the winding drive shaft 4. It is characterized in that the tapered surface 6 of the elastic guide member 5 is brought into sliding contact with both ends of the magnetic tape 1 which is fixed to a rod 7 and wound around a bubble 3 attached to a winding drive shaft 4. Magnetic tape winding device.