JP2566959Y2 - Wrapping cord storage structure of tying device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method of winding a binding string fed and supplied to a knotting-bill-type binding mechanism a number of times, and placing the winding string formed in a tubular shape in a body-side support case. The present invention relates to a cord storage structure of a tying device that is configured and configured to pay out a cord outward from a cord end inside the winding of the cord.

[0002]

2. Description of the Related Art
Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. H2-135023, a guide rod is provided in a cantilever shape on the inner side of a cord along the axis thereof, and the guide rod and a cord insertion hole are provided. And a structure in which a gap is provided between them.

[0003]

In the above-mentioned conventional structure, the string is unreeled excessively inside the cord after the binding operation is completed due to the inertia of the cord due to the cord being pulled out at high speed by the binding mechanism. Inside, by allowing the string to be intertwined in a loop in a free state from the state of being regularly wound into a tubular shape along the outer peripheral surface of the guide rod,
The knitting phenomenon is prevented in which the cord is wound at a high speed at the time of the next bundling operation in a state of being entangled in a loop and receives a tension in a twisted state to cut the string. However, even in the above-mentioned conventional structure, since there is a space between the guide rod and the inner peripheral surface of the winding string, excessive feeding of the string from the winding string cannot be prevented. There is a risk of entanglement in a free state, which is insufficient to effectively prevent the occurrence of the kink phenomenon, and there is still room for improvement. The purpose of the present invention is to eliminate the above-mentioned disadvantages.

[0004]

The present invention is characterized in that, in the winding cord storage structure of the binding device described at the beginning, a supporting member provided on the opposite side of the cord feeding opening of the winding cord is used to form the inside of the winding string. A cylindrical body extending along the center and a receiving base for mounting and supporting the cord are extended in a cantilever manner, and after passing through the inside of the cylindrical body, bent from the distal end of the cylindrical body. Then, a plurality of spring wires that are radially expandable and contractable, and press and urge the inner surface of the winding cord radially outward, are disposed, and the distal end of the tubular body is disposed on the receiving base. A point formed in such a manner that it is located at a predetermined distance from the leading end in the string extending direction, and the distal end of the cradle is located in a position located in the string extending direction on the upstream side from the end of the winding cord. It is in.

[0005]

[Function] In the binding operation state in which the cord is stored in the body side support case, the inner peripheral surface of the cord is urged radially outward by a plurality of spring wires, so that the binding mechanism can be operated. Even when the accompanying high-speed feeding of the string is performed, the feeding string is pressed by the spring wire, and the excessive feeding is effectively prevented. Even if the inner diameter of the cord changes with the consumption of the string,
The spring wire can be elastically deformed and follow the change in diameter, so that such an excessive feeding preventing action can be always maintained. In addition, since the tip of the tubular body is more inward than the end of the winding cord, a margin space for feeding the cord is formed near the outlet of the cord to the outside of the case, and the tip of the spring wire is also provided. Since the portion has a smooth arc-shaped curve, the string is easily slipped through. In addition, since the cylindrical body and the cradle are formed on the support member, the cord can be loaded on the fuselage-side support case in a unit mounted on the cradle. Is inserted more inward than the end of the cord, so the cradle hits the fuselage side case and a gap is created between the cord and the fuselage side case, and the strap is loose in the case. Can be effectively prevented.

[0006]

[Effects of the Invention] Accordingly, the string can be smoothly pulled out, and the string can be prevented from being excessively extended by the tying device at a high speed, regardless of how the string is consumed. This can effectively prevent the occurrence of string breakage. In addition, the operation of attaching the cord can be easily performed in the unit state, and the rattling of the cord can be prevented by loading the cord in such a manner that the end of the cord is in contact with the place where the cord feed-out opening of the body side case is formed. I can do it.

[0007]

Embodiments will be described below with reference to the drawings. FIG.
Shows a combine tying device. This bundling device is configured so that a straw is bound by a bundling string 2 and discharged to the outside of the machine body by a bundling mechanism 1 of a well-known structure of a knotter building type. Is placed and supported on the cord storage unit 4, and is fed outward from the inside of the cord 3 and supplied to the binding mechanism 1. Next, the configuration of the cord storage unit 4 will be described. The winding cord 3 is placed and supported in a body side supporting case 6 connected and fixed to a frame 5, passes through a cord feeding port 7 formed in the case 6, and then excessively moves when the binding mechanism 1 performs high speed feeding. The friction type string brake 8 is configured to prevent the string 2 from hanging out and being entangled by being fed outward. As shown in FIG. 1, the winding cord 3 is configured to be placed and stored in the support case 6 in a unit state attached to an excessive feeding prevention device 9 for preventing the cord 2 from being excessively fed inside. . As shown in FIG. 3, the excessive feeding prevention device 9 includes a gutter-shaped receiving base 11 for placing and supporting the cord 3 from a disc-shaped support member 10 located on the opposite side of the cord feeding port 7, A tubular body 12 provided at a position substantially along the axis inside the cord 3 is integrally extended in a cantilever manner. After the inside of the tubular body 12 is inserted, Two spring wires 13 that bend from the distal end of the body 12 and that can freely expand and contract in the radial direction of the cord and that press and urge the inner surface of the cord 3 outward in the radial direction are provided. . The free end side of the spring wire 13 extends outwardly through a long hole 14 formed in the support member 10 along the radial direction, and is not moved because it is carried along with the cord 2 being fed. The retaining portion 13a is formed by bending as described above. or,
The other end is also bent and formed into a hook shape to prevent the cylindrical body 12 from moving along the axis. Each spring wire 13 is distributed in the diameter direction, and the support member 10 is interposed between the support case 6 and the support case 6 at a middle portion in the circumferential direction of the place where the spring wire 13 is provided on the support member 10, and the support member 10 is arranged on the string feeding port 7 side. A sponge member 15 for elastically pressing is provided. Then, the distal end portion 12a of the tubular body 12 is
The end portion 11a of the cradle 11 is located at a position where the end portion 11a of the cradle 11 is located at a position where the end portion 11a of the cradle 3 is located at a position which is located at a predetermined distance from the end portion of the wrapping cord 3. With this configuration, when the inner diameter of the cord 3 is small, as shown in FIG. 1, the pressing action portion 13 b in the middle part of the spring wire 13 is contracted and effectively acts on the inner peripheral surface of the cord. Even when the inner diameter of the cord 3 gradually increases with the consumption of the cord 2, as shown in FIG. Can act on surfaces. At this time, the free end side of the spring wire 13 is allowed to move radially outward along the long hole 14.
When attaching the cord 3, the end of the cord 3 comes into contact with the side of the case earlier than the tip of the receiving stand 11 in a state where the cord 3 is attached to the support case 6 and the sponge is attached. The pressing action by the member 15 is reliably performed, and it is possible to prevent rattling of the cord 3. The spring wire 13 bent outward from the tubular body 12 has a smooth arc shape, and a flexible space for pulling out the string 2 is provided between the tip of the spring wire 13 and the string feeding port 7. Thus, the string 2 can be smoothly pulled out.

[0008] In the claims of the utility model registration, reference numerals are written to facilitate comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cord storage unit.

FIG. 2 is a cross-sectional view of a winding cord storage unit.

FIG. 3 is a perspective view of an excessive feeding prevention device.

FIG. 4 is a rear view of the binding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Binding mechanism 2 Binding string 3 Winding string 10 Support member 11 Receiving stand 12 Cylindrical body 13 Spring wire

Claims (1)

(57) [Scope of request for utility model registration] 1. A body-side supporting case (6) comprising: a binding string (3) formed into a tubular shape by winding a binding string (2) fed out and supplied toward a knotting-bill type binding mechanism (1) many times;
To be placed and stored in the cord (3)
A winding cord storage structure of a tying device configured to pay out the string (2) outward from the end of the string inside the winding of (3), which is provided on the opposite side of the string feeding port of the winding string (3). Support member (1
0), a tubular body (12) extending along the inward center of the cord (3), and a cradle (11) for placing and supporting the cord (3).
Is extended in a cantilever manner, and after penetrating the inside of the tubular body (12), it is bent from the distal end of the tubular body (12) to be freely expandable and contractible in the radial direction, and has a cord. A plurality of spring wires (13) for urging the inner surface of (3) outward in the radial direction are provided, and the distal end of the tubular body (12) is connected to the distal end of the cradle (11). Formed such that the end of the cradle (11) is located a predetermined distance inward in the string extending direction from the end of the winding cord (3). The winding cord storage structure of the binding unit that has been done.