JP2703136B2 - Wrapping device for tying device and tying device for tying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of winding a binding cord which is fed out and supplied to a knotting mechanism of a knotter building type, a plurality of times, and stores and holds a tubular cord. The present invention relates to a winding string storage structure of a tying device configured to pay out a string from the end of a lace inside a winding, and a tying string used for the tying device.

[0002]

2. Description of the Related Art
Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2-135023, a guide rod is provided in a cantilever shape on the inner side of the cord along the axis thereof, and the cord is inserted through the cord. There was a structure in which a gap was provided between the hole and the hole.

[0003]

The above-mentioned conventional structure effectively prevents the string from becoming entangled in a loop inside the winding string due to the excessive feeding of the string due to the inertia of the string accompanying the high-speed feeding of the string by the binding mechanism. That is, the occurrence of a string break is suppressed. However, even in the above-described conventional structure, since there is a space where the string can move freely between the inner surface of the winding string and the guide rod, at the time of high-speed string feeding by the binding mechanism, due to excessive feeding, In the space, the string may be entangled in a loop shape, and a kink may be generated to cause breakage of the string due to concentration of stress, and there is still room for improvement. The present invention
It is an object of the present invention to minimize the occurrence of string breaks due to string intertwining.

[0004]

The first aspect of the present invention is characterized in that a tying cord formed into a tubular shape by winding a tying cord supplied and fed to a knotting-bill-type tying mechanism many times is placed and stored. And a cord storage structure of a tying device configured to pay out the cord outward from the cord end inside the winding of the cord, wherein an inner surface of the cord is provided on the inner side of the cord. A plurality of spring wires that press and urge the wire outward in the radial direction, and each of these spring wires is moved from one end to the other end in a direction along the inner center of the winding cord. A locking portion is provided which extends in a holding shape and supports each spring wire so that the spring wire is movable in the radial direction of the winding string and the movement of each spring wire in the circumferential direction of the winding string is regulated. Thus, the winding cord is configured to be freely expandable and contractible in the radial direction.

[0005] A characteristic feature of the second invention is that a rod-like body is cantilevered from a support member provided on the outer side opposite to the cord feed-out opening of the cord along the inner center of the cord. The respective spring wires are extended from the free end of the rod toward the support member, and the winding string is placed on the support member having the rod and the respective spring wires. A gutter-shaped cradle for mounting and supporting is mounted, the lace is placed and supported on the cradle, and the rod-shaped body and the respective spring wires are mounted on the lace in a unit state in which the lace is housed in the lace. The point is that it is configured as follows.

A third feature of the present invention is that a predetermined string feeding gap is formed between the string feeding port formed in the body side support base and the string feeding port side end of each of the spring wires. On the point.

[0007] A characteristic feature of the fourth invention is that a plurality of springs are arranged so that the string is fed outward from the end of the string inside the winding and the inner surface of the string is pressed and urged radially outward. The wire is extended in a cantilever manner from one end side to the other end side in a direction along the inner center of the winding cord, and each spring wire is movable in the radial direction of the winding cord, and A plurality of spring wires, which are provided so as to be supported so that the movement of each spring wire in the circumferential direction of the winding cord is restricted, are configured to be freely expandable and contractible in the radial direction of the winding cord, are provided inside the cylinder of the winding cord. The point is that it is integrated on one side.

[0008]

[Action] a. According to the first aspect of the present invention, the spring wire is always pressed and urged radially outward on the inner surface of the winding cord, so that the unreeling string is moved between the inner surface of the winding cord and the spring wire by the spring urging force. As a result, it is pulled out in a free state in the space inside the lace and does not become entangled in a loop in the limited space inside the lace. The spring wire is cantilevered from one end to the other end in a direction along the inner center of the winding cord, and each spring wire extends in the radial direction of the winding cord. In a state supported by a locking portion that supports the cord so that it is movable, it is configured to be able to expand and contract in the radial direction of the cord, regardless of the change in inner diameter due to consumption of the cord, It will always press against the inner surface of the winding cord. The winding in the circumferential direction is performed while allowing the spring wire and the spring wire to be twisted in the rotation direction due to the high-speed feeding operation by the binding device in the pressed state while allowing the spring wire to move in the radial direction. It can be avoided by the presence of the locking portion that supports the spring wire while restricting the movement of the wire, whereby the above operation can be reliably maintained, and the wrapping cord can be prevented from collapsing inward in the radial direction. Becomes As a result, there is no room for a kink phenomenon due to the twisting of the string, and the possibility of the string breaking is reduced.

B. According to the second invention, the above a. In addition to the above, the winding cord can be mounted on the support table on the binding device side in a pre-set state in which the spring wire is placed and stored in the receiving table in a state where the spring wire is pressed, and the new winding string is consumed by the consumption of the string. When mounting the camera, the above-mentioned storing operation can be efficiently performed at a place away from the body.

C. According to the third invention, the above a. Or b. In addition, in the vicinity of the cord payout opening, the cord is sandwiched between the spring wire and the machine-side support base, so that the cord can be smoothly fed without being hindered.

D. According to the fourth invention, the above a. It is possible to obtain a winding string having the same effect as the above.

[0012]

Therefore, with a simple structure, when the cord is tied at a high speed by the tying device, the cord is effectively prevented from being entangled in a loop on the inner side of the cord due to excessive dispensing, and a kink due to twisting is provided. Can be reliably suppressed, and the winding string can be stored with less risk of string breakage.

[0013]

Embodiments will be described below with reference to the drawings. FIG.
Shows a combine tying device. This binding device is configured to bind the threshed straw in a predetermined amount and discharge it to the outside of the machine body. The binding device includes a knotting-type binding mechanism 1 of a well-known structure and is supplied to the binding mechanism 1. The binding cord 2 is formed by winding the binding cord 2 into a tubular shape by winding the binding cord 2 many times.

Next, the storage structure of the cord 3 will be described. The winding cord 3 is placed and stored on a support base 6 fixed to the machine body frame 5, and the outer binding mechanism 1 is passed through a cord payout opening 7 formed on one side of the support base 6 from the end of the winding inside the winding base. The cord 2 is ejected outward and droops excessively by the binding mechanism 1 at a high speed, so that the cord 2 comes off. Neck type string brake 8 to prevent adverse effects
Is provided.

The cord 3 is placed and supported on the support base 6 in a state of being set in the cord storage device 9 in a unit state in advance, and is pressed and fixed toward the cord payout opening 7 by a spring 10. It is configured to do. That is, as shown in FIG. 1, the cord storage device 9 includes a gutter-shaped receiving base for placing and supporting the cord 3 on a disk-shaped support member 11 having a diameter substantially equal to the maximum diameter of the cord 3. At the same time, a pipe member 13 (an example of a rod-shaped body) is fixedly extended from the support member 11 along the inner center of the cord 3 so as to be cantilevered. Four piano wires 14 (one example of a spring wire) having a small diameter (about 1 mm) are extended radially from the distal end portion toward the support member 11 side. The free ends of these piano wires 14 are elongated holes 15 formed in the support member 11 along the radial direction (an example of a locking portion).
Through the through hole, and the movement in the circumferential direction of the winding string is restricted by engagement with the elongated hole 15 in the circumferential direction of the winding string. Further, the free end of each piano wire 14 is prevented from moving in the cord payout direction by the engagement of the L-shaped bent retaining locking portion 14 a with the support member 11, and the free end of the piano wire 14 is The piano wire 14 is configured so as to be movable in the radial direction by moving along the same, and is configured to be able to expand and contract in the radial direction and to press and urge the inner surface of the cord 3 outward in the radial direction. Have been.

As shown in FIG. 2, each of the piano wires 14 is in contact with the inner surface of the cord 3 while being twisted along the cord winding direction of the cord 3, and is inserted into the cord 3 at the maximum. In such a state, a predetermined string feeding gap is formed between the end of the string take-out port 7 of each piano wire 14 and the string take-out port 7.
The end of the cord take-out opening 7 side is formed to have a smooth arc shape so that the cord 2 to be fed out is not caught near the outlet so that smooth pay-out is not hindered. still,
A notch is formed in advance in a portion corresponding to the long hole 15 of a cover member 16 made of a synthetic resin by compression molding that covers the outer peripheral surface of the winding cord 3, and the diameter of each piano wire 14 accompanying consumption of the cord 2 is formed. It is designed to smoothly move outward in the direction.

With this configuration, the cord 2 is wound inside the wound cord 3 with the high-speed feeding of the cord 2 by the binding mechanism 1.
Is not excessively entangled in the free state from the wound state due to its inertia, and it is possible to prevent the kink state from being entangled in a loop and prevent the winding string 3 from being deformed due to the consumption of the string 2. You can do it. In addition, piano wire 1
Since 4 has a small diameter, its urging force is weak, which does not become a resistance to the extension of the cord 2.

Another Embodiment 1 As shown in FIGS. 3 and 4, a narrow leaf spring 14 is used as the spring wire in place of each of the piano wires, and the inside of the pipe member 13 is inserted. In place of the above, a cantilever is attached and fixed to the tip of the pipe member 13,
Further, it may be configured to be bent into a U-shape so as to avoid the location where the lace cover member 16 is present.

[Second Embodiment] As shown in FIG. 5, the spring wire 14 may be a single piano wire bent in a U-shape with a middle bulge.

[Other Embodiment 3] The spring wire may be attached to the cord 3 in a state in which it is pre-installed inside the cord 3, instead of being attached to the cord 3 as described above. Good.

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

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

FIG. 2 is a side view of a winding string storage unit.

FIG. 3 is a cross-sectional view of a winding string storage unit of another embodiment.

FIG. 4 is a side view of a winding string storage unit according to another embodiment.

FIG. 5 is a cross-sectional view of a winding cord storage unit according to another embodiment.

FIG. 6 is a rear view of the binding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bundling mechanism 2 Bundling string 3 Winding string 6 Airframe side support stand 7 String feed-out opening 11 Support member 12 Receiving stand 13 Bar-shaped body 14 Spring wire 15 Locking part

Claims (4)

(57) [Claims] 1. A winding cord (3) formed into a tubular shape by winding a binding string (2) fed out and supplied toward a knotting mechanism (1) of a knotter building type, is placed and accommodated.
A cord storage structure of a tying device, wherein the cord (2) is configured to be fed outward from a cord end inside the winding of the cord (3), and an inner side of the cord (3). And a plurality of spring wires (14) for urging the inner surface of the wrap (3) radially outward, and disposing each of these spring wires (14) to the wrap (3). The cantilever extends from one end side to the other end side in a direction along the inner center, and each spring wire (14) is movable in the radial direction of the winding cord (3) and is wound. Around the string (3)
A locking portion (15) for supporting the spring wire (14) so as to restrict the movement of each spring wire (14) in the direction is provided so as to be able to expand and contract in the radial direction of the cord (3). The winding string storage structure of the binding device. 2. A cantilevered rod-shaped body (3) extending from a support member (11) provided on the outer side opposite to the cord pay-out opening of the cord (3) along the inner center of the cord (3). 13) is extended,
Each of the spring wires (1) is connected from the free end of this rod-shaped body (13).
4) is extended toward the support member (11) side,
And the said rod-shaped body (13) and each said spring wire (14)
A gutter-shaped receiving base (12) for mounting and supporting the cord (3) is attached to the support member (11) provided with the above, and the winding cord (3) is mounted and supported on the receiving stand (12). At the same time, in a unit state in which the rod-shaped body (13) and the respective spring wires (14) are housed in a cord (3), an airframe-side support stand (6)
The winding cord storage structure of the tying device according to claim 1, wherein the wrapping structure is configured to be attached to the tie. 3. A predetermined string feeding gap is provided between a string feeding port (7) formed in the machine body side support base (6) and a string feeding port (7) side end of each of the spring wires (14). The winding cord storage structure of the binding device according to claim 1 or 2, wherein 4. A plurality of spring wires configured to unwind the string (2) from the end of the string inside the winding and to urge the inner surface of the winding string (3) radially outward. (14)
Are cantilevered from one end to the other end in a direction along the inner center of the cord (3), and each spring wire (14) of the cord (3) is Each spring wire (14) that is movable in the radial direction and is circumferential in the circumferential direction of the cord (3).
A plurality of spring wires (14) configured so as to be able to expand and contract in the radial direction of the winding cord (3) by providing an engaging portion (15) for supporting movement of the winding string (3) are provided. A tying cord for a tying device that is incorporated inside the cylinder.