JPS635899Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a knot-forming aid for tying a knot to a string, and more specifically, to a knot-forming aid for tying a knot to a string by a machine.

Currently, most books are bound in Western style, but Japanese binding is also used only in certain books. In the case of Japanese binding, everything was done manually, which was extremely inefficient. Therefore, attempts have been made to machine bind this, but when making a knot at the end of the binding cord by machine, it is not possible to ensure that the cord can be changed, and so it is still necessary to manually bind it. forming a knot.

This invention aims to eliminate the above-mentioned drawbacks, and its feature is that V-shaped string locking notches are placed at both ends of the winding frame to temporarily lock the string. A knot is tied by a machine to the string which is provided in a different manner and has a groove slightly deeper than the diameter of the string formed on the surface between the string locking notches of the winding frame to enable the string to be changed by a mechanical arm. This provides a knot-forming aid. An embodiment of this invention shown in the drawings will be described in detail below.

FIG. 1 is an overall perspective view of the knot forming aid A of this invention. In this example, at least the strings on both ends 2a and 2b of a cylindrical winding frame 1 made of metal or synthetic resin are used to form a knot. Approximately V-shaped string locking cuts 3a, 3b with opening dimensions larger than the string diameter are formed at positions that are different in the outer circumferential direction by an interval larger than the diameter of the string (or thread), and A groove 4 slightly wider and deeper than the diameter of the string is formed on the surface of the winding frame between the stop notches.

The purpose of the above-mentioned string locking notches 3a and 3b is to
It is sufficient to have a function that can temporarily lock the string that is about to form a knot, and instead of forming the knot directly on the winding frame, a protrusion is provided in the width direction from the winding frame, and a V-shaped cut is made in this protrusion. The winding frame 1 is not limited to a cylindrical shape, and may be a bar or a plate without any problems.

The knot-forming aid A of this invention has the above-mentioned configuration, and the procedure for tying a knot in a string using this aid A will be described below.

First, as shown in FIG.
is grasped by a mechanical arm (not shown) and pushed into the string locking notch 3a of the winding frame 1 fixed by a support member to lock it, and then the string 5 is wrapped around the winding frame 1 with the mechanical arm. Wrap it once and make a string locking cut 3 at the end of the winding 52.
Push it inside b and lock it.

Next, as shown in FIG. 3, the mechanical arm removes the winding start end 51 from the string locking notch 3a, and
The winding part 3, which is wound a little more than once, is the winding frame 1.
In order to prevent the winding start end 51 from coming off,
The winding portion 53 also comes to the winding end side 52 side.
It is inserted into the groove 4 through the upper part, and is pushed along the groove so as to pass under the wrapped portion 53 to the end where the string locking cut 3a is formed.

Here, the mechanical arm once removes the string, grips again the winding start end 51 of the string that protrudes outward from the end where the string locking notch 3a is formed along the groove 4, and uses the other mechanical arm (not shown) to string the string. From the locking notch 3a to the winding end side 5 of the string
2. Once the knot ring is formed, remove it from the winding frame 1, and then use both arms to pull the string in the opposite direction, or put the knot ring on the winding start side and bring it as close to the winding start end as possible, then pull it, as shown in Figure 4. A knot 54 is formed as shown.

In the example, an example of a single knot was shown, but the winding frame 1
It can be wrapped one or more times and then tied as described above, or it can be wrapped several times around a string wound around a frame and tied.

As described above, this invention has V-shaped string-retaining notches at slightly different positions on both ends of the spool to temporarily retain the string, and uses an auxiliary tool in which a groove slightly deeper than the diameter of the thread or string is formed on the surface between the string-retaining notches of the spool. This makes it possible to mechanize the task of tying knots in thread or string, and even a simply configured mechanical arm can reliably change the thread or string and tie knots, making it possible to mechanize the entire process of Japanese binding.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with Figure 1 being a perspective view of the knot-forming aid, Figures 2 and 3 being explanatory diagrams of the knot-forming procedure using this aid, FIG. 4 is a perspective view of the string after forming a knot. A... Knot formation aid, 1... Winding frame, 2a,
2b... Edge, 3a, 3b... Locking notch, 4...
Groove, 5...string, 54...knot.

Claims (1)

[Scope of utility model registration request] V-shaped string locking notches for temporarily locking the string are provided at both ends of the winding frame at slightly different positions, and a hole slightly larger than the diameter of the string is provided on the surface between the string locking notches of the winding frame. A knot forming aid characterized by forming a deep groove.