JPS6225086Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a binding string feeding guide device in a binding machine used in a culm processing device of a binder or combine harvester.

In the conventional tying machine, as shown in Figs. 3 and 4, the string B is fed out from the wound string B stored in the string case A toward the needle/string holder at the knot.
is extended through the string brake C and the slack-removal rod D, so that the string b is paid out at an appropriate length without causing any slack. string b,
From the end of the string, the string brake C and the slack-removal rod D
The threading operation is troublesome because the string has to be inserted through the thread to reach the knot, and the string feed guide structure is complicated because the string brake C and the slack-removal rod D have to be installed side by side. It was hot.

Therefore, the present invention is designed to apply appropriate tension to the string by installing only a string slack remover without installing a special string brake, so that the string can be properly fed out without slack. To provide a string feeding guide device in which the threading motion is simplified and the string feeding guide structure is also simplified.

The structure of an embodiment of the present invention is illustrated in FIGS. 1 and 2, and the structure of the embodiment will be described below.

Reference numeral 1 denotes a string case made of synthetic resin or the like in a cylindrical shape, with one end of the cylindrical body serving as a loading port (not shown) for the winding string B, and the other end serving as a bottomed portion 2. , a cord feeding hole 3 is provided in the center of the bottomed part.

Furthermore, a slack removing rod 4 is attached and installed on the outside of the bottomed part, and a binding string b extending from the winding string B is attached.
The string is fed out from the string feed-out hole 3 and extended while being held and guided by the slack-removal rod 4, and the extended end is stretched to reach a needle/string holder at a knot (not shown).

The string slack removing rod 4 is made of an elastic wire rod of an appropriate diameter, and is attached by fixing a mounting plate 6 installed at its base 5 to the bottomed portion 2 of the string case with fixing devices 7, 7. It's becoming like that.

In addition, in the middle part extending from the base 5, there is a conical coil having an angle θ that can be elastically contracted so as to apply a brake to the binding string b inserted from the inside to the outside, and has a plurality of equally spaced turns. At the same time, an annular support part 10 is formed at the tip of a string holding arm part 9 formed by extending the small-diameter free end side of this coil part 8, for inserting and holding the string b into the inner diameter part. It is composed of

Then, the wound string B is loaded into the string case 1, and the end of the string is taken out from the string outlet 3 to the outside of the string case. If you place the string b between the coil winding and the outer circumference of the coil part 8 and rotate it, the string b will pass through the inner diameter of the coil part 8 and can be unwound. Yes, coil part 8
The binding string b can be attached by extending the string b outward from the winding gap at an appropriate location, inserting it through the annular support part 10, and further extending it to the knot and connecting it to the needle/string holder. As the operation of the knotting section is repeated, the binding string b is paid out in predetermined lengths at a time. At the same time, the required braking force is applied to the string, and the slack is removed by the elastic action of the string slack-removal lever 4, so that the string is always drawn out with appropriate tension.

Also, if you use a different binding cord or if it is necessary to change the braking force applied to the cord due to other factors, change the part of cord b that passes through the 8-turn gap of the coil part as appropriate. , coil part 8
Since it has a conical shape, the string clamping force at each winding gap is different, so it can be adjusted to apply an appropriate braking force to the string.

In addition, C in Figures 3 and 4 showing the conventional structure.
1, C2 is a string brake plate, C3 is a string brake spring, and C4 is a string brake adjuster.

As described above, in the present invention, the string slack removing rod 4 made of an elastic wire is connected to the string feeding part of the string case 1, and the string slack removing rod 4 has an inner Since it is constructed by forming a multi-turn conical coil part with equal intervals that can be elastically compressed so as to apply a brake to the binding cord b that is inserted outward from the tying cord b, the cord braking device that was required in the conventional device can be replaced with a special cord braking device. It is possible to install only a string slack removing rod made of elastic wire without installing it in the coil part 8, and to apply appropriate tension to the string while paying out the binding string b through an appropriate winding interval in the coil part 8, so that the string can be fed out without slack. As a result, the lace unwinding guide structure is significantly simpler than conventional devices, and the lace threading operation and braking force application adjustment operation are made easier.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device of the present invention, Fig. 2 is a partially sectional side view showing an enlarged main part of the device, Fig. 3 is a front view of the conventional device, and Fig. 4 is a cross section of the conventional device. FIG. 1... String case, 4... String slack remover, 8...
...Coil part, b... Binding string.

Claims (1)

[Scope of utility model registration request] A string slack removing rod 4 made of an elastic wire is provided in series at the string feeding portion of the string case 1, and a binding string b inserted from the inside to the outside is attached at the mid-extension portion of the string slack removing rod 4. A cord feeding guide device for a tying machine, characterized in that it is constructed by forming a plurality of conical coil portions 8 having equal intervals that can be elastically compressed so as to apply a brake.