JPS5823800Y2 - Feeding tool for film winding body - Google Patents

Description

[Detailed description of the invention] The present invention relates to a feeding tool for a rolled film object, and in particular, as a feeding tool for taking out one bag or one sheet at a time from a continuous wound object such as a synthetic resin bag or film with perforations. It is suitable.

Conventionally, as such a feeding tool, as seen in Japanese Utility Model Application Publication No. 49-84484, a shaft is inserted into a liquid tube of a film-wound body, and a wire spring provided in the axial direction on the outer peripheral surface of the shaft is used to close the inner surface of the liquid tube. It is known that the film winding body is prevented from rotating due to inertia with respect to the shaft by being pressed against the shaft, and is fixed to a holding table at both ends of the shaft.

However, in such a feeding tool, both ends of the wire spring bent into an arcuate shape are fixed to both ends of the shaft with the intermediate arcuate portion protruding outward, as shown in FIG. When the shaft a is inserted into the liquid tube C as shown in the figure, the wire spring b is not compressed toward the shaft center, but is inserted so as to fall toward the shaft outer circumferential surface while maintaining its arcuate shape, thereby fixing the shaft. When the liquid tube is rotated, the force with which the wire spring presses against the inner surface of the liquid tube is weak, and when the weight of the film-wound body is large, the film winding body has the disadvantage that it rotates due to inertial force.

The present invention eliminates the drawbacks of the conventional feeding tools as described above and provides a feeding tool in which a wire spring is compressed in the axial direction. It consists of a support device that supports the support device, and a holder that fixedly holds the support device at both ends thereof so as not to rotate. Two bow-shaped elastic wires are arranged in a drum shape.
The end of each wire rod is fixed to a locking piece, and the distance between the locking pieces is expanded by pressing the elastic wire from the outside, and the locking piece allows the wire to be bent into a spiral shape. The present invention relates to a feeding tool for a film-wound body, characterized in that it is formed by being bent and provided with a locking hole, and further provided with a knob portion that is bent so as to protrude outward from the locking hole.

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing an example of the feeding tool of the present invention,
1 is a support, and 2 is a holder.

As shown in FIG. 2, the support 1 has locking pieces 12 and 12 at both ends.
Between these locking pieces 12, 12, two arcuate elastic wood members 11, 11 are arranged in a drum shape that protrudes outward at the middle part, and the end of each wire is connected to the locking piece. 12.12 is fixedly formed.

In the example shown in FIG. 2, a single elastic wire is formed by bending.

That is, the elastic wire is bent twice into a circular thread shape to form the locking hole 13, and then bent twice into an oval shape to form the knob portion 14 that projects outward from the locking hole 13. The elastic wire is bent to form a locking piece 12, both ends of the elastic wire are bent into an arcuate shape to form an elastic wire 11.11, and the ends are further bent to form the other locking piece 12. is formed, and the ends thereof are connected by a seam 15 in the middle of the oval shape.

Support 1 formed by bending a single elastic wire in this way
It has the advantage of having a simple structure and being easy to manufacture.

The holder 2 is made of a thick wire rod and is fixed to a desk or wall, and the holder 2 has locking protrusions 21 and 21 that project upward at a predetermined interval. There is a locking hole 1 provided in the locking piece 12゜12 of the support 1.
3, 13 into this locking protrusion 21.21 and attach the support 1.
is fixedly held by the holder 2 so as not to rotate.

In addition, 3 is a film rolled body, polyethylene bag 32.32
. . are continuous with perforations 33, 33, . . . and rolled up into the liquid pipe 31.

34, 34... are heat-sealed wires.

Further, it is preferable that the maximum diameter of the elastic wires 11, 11 of the support 1 is larger than the inner diameter of the liquid tube 31 by about 10 diameters.

In order to attach and use the film winding body 3 to the feeding tool configured as described above, first, the support tool 1 is inserted into the liquid pipe 31 of the film winding body 3.

The elastic wires ii and i1 of the support 10 are connected to the liquid pipe 3 at the center.
1, the widths of both wire rods 11, 11 are narrowed, and the wire rods 11, 11 are inserted into the liquid tube 31 while being pressed in the axial direction so as to be in symmetrical positions with respect to the axis.

Then, the film roll body 3 is fixed by fitting the locking holes 13.13 at both ends of the support 1 into the locking protrusions 21.21 of the holder 2.

When using the bag 32, pull out the bag 32 at the end of the rolled body 3, and when the perforation 33 is separated from the outer surface of the rolled body 3,
When the bag 32 is pulled vigorously, the bag 32 is cut from the perforation 33.

The film winding body 3 is supported by pressure on the inner surface of the liquid tube 31 by the repulsive force in the normal direction of the elastic wire 11.11, so when the bag 32 at the end is pulled, the film winding body 3 is pressed only while being pulled. rotates and the bag 32 is fed out, but if the pulling is stopped, the film winding body 3 stops immediately and the bag 32 is not fed out by rotating excessively.

Further, even when cutting, only a tensile force is momentarily applied to the film winding body 3, and a reaction force is applied in the normal direction of the liquid tube 31 by the elastic wire 11, which is elastically supported by the support 1. Since rotation is prevented by this, the film roll can be cut with almost no rotation.

The locking protrusion 2L21 of the holder 2 only needs to have its tip facing upward, but as shown in the figure, a bent portion 22 is provided at the base of the locking protrusion 2L21 so that it is oriented horizontally. By fitting the stop hole 13 up to this horizontally oriented bent portion 22, it is possible to prevent the film from falling even if force is applied to the film winding body 3 from below.

Further, a notch 23 may be provided at the tip of the locking projection 21.21 to prevent removal.

As described above, the film winding body feeding device of the present invention has a supporting device in which at least two bow-shaped elastic wires are arranged in a drum shape between the locking pieces at both ends, and both ends of the supporting device are fixed to the locking pieces. The distance between the locking pieces is extended by pressing the elastic wire from the outside, and this support is inserted into the liquid tube of the film winding body to support the film winding body. When used, the support is fixedly held in a holder at both ends so as not to rotate. When the support is inserted into the liquid pipe, the drum-shaped elastic wire is pressed from the outside by the cabinet of the liquid pipe, causing the liquid to flow out. The inner surface of the tube is pressed in the normal direction.

In this way, since the inner surface of the liquid tube is pressed in the normal direction by the elastic wire, when the film roll is fed out, the rotation of the film roll is regulated by the friction caused by the pressure contact of the elastic wire between the support and the liquid tube. It is possible to prevent the film winding body from rotating due to inertia and letting out the film.

Furthermore, the film can be easily cut with almost no need to feed out the film.

In addition, in the support body of the feeding device of the present invention, when the elastic wire rod is pressed from the outside, the interval between the locking pieces increases, so that it is easy to insert the support body into the liquid pipe, and the thickness and material of the elastic wire rod can be easily inserted. Alternatively, by changing the arcuate shape, the pressure force of the liquid pipe can be adjusted appropriately.

Further, since the support is obtained by bending a wire, it is easy to manufacture, and it is lightweight and easy to use.

Furthermore, since the grip portion is provided to protrude outward from the locking hole, it is easy to install or remove the support from the holder after inserting the support into the liquid tube of the film winding body.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of the feeding tool of the present invention, Fig. 2 is a plan view showing an example of the support, and Fig. 3 is a sectional view showing how the shaft and liquid pipe of the conventional feeding tool are fitted. It is. 1: Support, 11: Elastic wire, 12: Locking piece, 13: Locking hole, 14: Knob, 2: Holder, 21: Locking protrusion,
3: Film rolled body.

Claims (1)

[Scope of utility model registration request] a support that rotatably supports the liquid tube of the film-wound body;
a fixed holder to prevent the support from rotating at both ends thereof, the support having locking pieces at both ends;
At least two bow-shaped elastic wires are arranged in a drum shape between these locking pieces, and the end of each wire is fixed to the locking piece.
The distance between the locking pieces is extended by the pressure applied from the outside of the elastic wire, and the locking piece has a locking hole formed by bending the wire into a spiral shape, and the locking piece has a locking hole formed by bending the wire in a spiral shape. 1. A tool for feeding out a rolled film body, characterized in that the device is bent to project outward from a hole and provided with a grip portion.