JPH0441047Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a binding method that can draw the string significantly toward the beak so that the object to be bound can be bound even if it is placed in a position away from the beak. Regarding machines.

(Prior Art) Conventionally, as this type of binding machine, those shown in, for example, Japanese Utility Model Publication No. 49-43018 and Japanese Utility Model Publication No. 48-3036 are known. Since these form a knot at the center of the bottom surface of a cylindrical or other shaped object, the former is a string insertion rod with a larger stroke, and the latter is an auxiliary insertion rod in addition to an insertion rod. A rod is provided, and the string is first pulled in using the auxiliary insertion rod and delivered to the insertion rod, and then the string is pulled to the beak using the insertion rod. Both methods allow a large amount of string pulling, but they have the following drawbacks: It was hot.

(Problem to be solved by the invention) With the conventional binding machine as described above, there is no problem if the objects to be bound are placed with the beak in the center of the bottom surface, but if the objects are placed on the table For example, as shown at A2 in Figure 6,
If the string is placed offset from the beak so that the side of the string that is pulled by the insertion rod is on the far side from the beak 5, the string cannot be pulled to the beak,
Even if the string could be pulled together, there was a problem in that the string would come off the beak before the beak could hold the string in its mouth, making it impossible to tie the string. In addition, in order to prevent the string from coming off in such a case, a separate member from the auxiliary insertion rod was required, and since the beak held the string in its mouth, it was necessary to use this member to keep the string in a pulled position. , requiring two other members in addition to the insertion rod, making the mechanism complicated, resulting in less smooth operation and more frequent failures.

An object of the present invention is to solve the above-mentioned problems, and to provide a binding machine that can suitably bind objects even if they are placed at a position far away from the beak.

(Means for Solving the Problems) The tying machine according to the present invention is characterized by a structure that includes, in addition to the insertion rod 7, a lever 10 that is operated by a cam 11 mechanism almost in synchronization with the insertion rod 7, and due to the shape of the cam, When the lever is moved close to the beak, the beak grasps the string and closes, or remains in that state until just before closing.

(Effect of the above means) The lever 10 pulls the string toward the beak, and then the insertion rod 7 pulls the string toward the beak, and even if the insertion rod retreats, the beak holds the string in its mouth and closes or closes immediately. Since the lever 10 remains close to the beak until the end of the tie, the string will not come off the beak even if the object to be bound is placed in a position that is considerably deviated, and therefore no bundling errors will occur.

(Embodiment) Figures 1 and 2 show the main parts of the binding machine according to the present invention, and in the figures, 1 is a main shaft rotated by a motor. The lacing arm (not shown) and knot-tying mechanism 2 are activated. A table 3 on which objects to be bound A are placed is provided on the knot forming mechanism 2.

The knot forming mechanism 2 includes a string presser 4 that holds the end of the string, a beak 5 that creates a knot, a cutter 6 that cuts the string, an insertion rod 7 that pulls the string to the beak 5, and a string guide located on the opposite side of the insertion rod. Including the rod 8, when wrapping the string around the object to bind it, the parts S on both sides of the string
1, S2 is drawn to the beak 5 using the insertion rod 7 and the string arranging rod 8, and the beak holds the string parts in its mouth to form a knot.

The tying machine according to the invention comprises a lever 10 which is located between the table 3 and the insertion rod 7 and which draws the string S towards the beak 5 prior to the operation of the insertion rod 7. This lever 10 is operated by a cam 11 attached to the main shaft 1 and a cam follower 1 that engages with the cam 11. In the illustrated embodiment, a pair of links 1 are provided between the cam mechanism and the lever 10.
A link mechanism consisting of 3 and 14 intervenes, and the lever 1
0 is pivoted at one end by pin 15, and link 13
is pivotally fixed at its lower end 13a and linked at its upper end.
4, and the other end of the link 14 is pivoted at a suitable position on the lever 10. Cam follower 12 is supported by link 13. Preferably, a long hole 16 extending along the axis of the link 14 is provided, and a pin 17 attached to the lower surface of the table 3 engages therein as shown in FIG. be done. By operating the lever 10 using the cam 11 and the link mechanism in this manner, there is an advantage that the lever 10 can be operated with a simple configuration. This lever 10 is pivoted about a fulcrum 15, and its free end 10a abuts against the string to pull the string toward the beak 5. Note that the cam follower 12 may be a contact in some cases.

Next, the effect will be explained. Before wrapping the string around the object A and pulling the string around the beak 5, the insertion rod 7 and the lever 1 are connected as shown in FIG.
0 are both in the retracted position. FIG. 3 shows a state in which the object to be tied is placed at a position deviated from the intended position, and in this state, without the lever 10, it is impossible to pull the string by the insertion rod 7. When pulling the string to the beak 5, the lever 10 first moves forward, and as shown in FIG. Move to the desired position. Then, the insertion rod 7 is actuated, and as shown in FIG.
At the same time, pull the other side of the string S to the position of beak 5.
2 is drawn to the beak 5 using the string holder 8, and the beak 5 holds the string parts S1 and S2 to form a knot.

When the insertion rod 7 moves toward the beak 5 in this way, almost simultaneously the lever 10 also moves near the beak 5 as shown in FIG.
When the string is handed over to the beak 5, the lever 10 immediately returns to its original position in order not to interfere with the movement of the beak 5, but the lever 10 remains in that position until the beak 5 grips the strings S1 and S2 and closes, or just before that, and the lever 10 will retreat after holding the string in its mouth. The cam shape of cam 11 is configured to operate lever 10 in this manner.

Therefore, as shown by A2 in FIG. 6, if the object to be tied is placed in a position that deviates considerably from the normal position, in the prior art, as described above, the string may come off before the beak 5 grips the string. However, this binding machine can properly bind even in such cases.

(Effects of the invention) As described above, according to the invention, objects to be tied can be placed so that the beak is located at the center of the bottom surface of the objects, and therefore a knot can be tied in the center of the objects to be tied. Needless to say, even if the object to be tied is placed in a position further away from this, that is, with the side of the string being pulled by the insertion rod facing away from the beak, the string may come off the beak when forming the knot. Therefore, the items to be bound can be placed on the table in a casual manner. In addition, in the past, two members were required in addition to the insertion rod to bind the objects when they were placed in an out-of-place position, but with the present invention, it is possible to do this with one member (the lever), and the mechanism is improved. It is simple, operationally preferable, and has fewer failures, thus significantly improving the efficiency of the bundling work.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of a binding machine according to an example of the present invention, FIG. 2 is a side view of the main parts, and FIGS. 3, 4, and 5 are side views showing the string pulling stage, respectively. FIG. 6 is a side view showing the state of knot formation in a conventional tying machine. In the figure, 1... Main shaft, 3... Table, 5... Beak, 7... Insertion rod, 10... Lever, 11... Cam, 12... Cam follower, 1
3,14...link.

Claims (1)

[Scope of utility model registration request] A cam that engages with a cam that is located between the table on which the object to be tied is placed and the insertion rod that draws the string to the knot-forming beak, and that is attached to the main shaft associated with the string-hanging arm and the knot-forming mechanism. and a lever actuated by a cam follower to draw the string toward the beak ahead of the insertion rod, said lever being pivoted at a suitable position so as to abut the string at one end and pull the string. and is connected to the cam follower via a link mechanism, and the cam shape of the cam is such that when the one end of the lever is moved close to the beak, the beak grips the string and closes, or closes the lever until just before that. A tying machine characterized in that said one end is formed so as to be near a beak.