US 5,682,927 A · Tying method and tying apparatus for articles

Abstract

A tying method and apparatus which is carried to easily automatically band bar-like articles such as reinforcements or pipes and various other articles by a linear tying material. The apparatus comprises tying material feed means (6), tying material bending means (8), encompassing and guiding means (9), tying material cutting means (7) and twisting means (11), wherein a starting point is formed in a way such that a part of a continuous linear tying material w delivered from the tying material feed means comes into engagement with the tying material bending means so that the tying material is bonded into a U-shape. In that state, the tying material is delivered from one side whereby the tying material is guided around an article to be tied by the encompassing and guiding means (9) while being bended into a substantially U-shape. The tying material is cut into a predetermined length, and both ends of the tying material are twisted together by a hook (25) of the twisting means (11). Since the tying material is automatically bended to form two strands and the tying is done only once thereby, the strength of the tying material is enhanced and the rigid tying can be made with a materially strong tying force. Further, since the twisting advances from the hook side toward the article to be tied, the twisting can be advanced till a looseness in the tying portion of the article to be tied disappears, thus enabling the strong tying.

Claims23

Dependent claims

A method of tying articles, comprising the steps of:

engaging and rotating an end portion of a tying material to form a starting point of the tying material being formed into a substantially U-shape for forming a pair of side-by-side strands of tying material;
guiding the tying material around an article to be tied while bending a part of a continuous portion of the linear tying material into the substantially U-shape to form the pair of side-by-side strands of tying material by a feeding force by which the tying material is further fed from a side opposite to said starting point;
cutting a rear end portion of said tying material from a continuous wire at a suitable time;
and twisting a substantially U-shaped extreme end portion and a rear end portion on another side of said tying material together to band the article to be tied.

1 more element

An apparatus for tying articles, the apparatus comprising:

tying material feed means (6, 60, 145) for delivering a continuous linear tying material;
tying material bending means (8, 50, 56, 90) in engagement with a part of the tying material to be delivered from said tying material feed means;
encompassing and guiding means (9, 35, 40, 95) for guiding the tying material around an article to be tied while bending into a substantially U-shape the tying material a part of which is engaged in said tying material bending means and is delivered;
cutting means (7, 75) for cutting the tying material into a predetermined length;
and twisting means (11, 62) for twisting both ends of the tying material together, wherein said tying material bending means comprises an engaging and rotating means for engaging and rotating an end portion of the tying material to form a starting point of the tying material being formed into the substantially U-shape.

2 more elements

An apparatus for tying articles, comprising a tying apparatus body (140) having a tying mechanism selection device;

and a drive and wire feed unit (141) having a motor for driving the tying mechanism of said tying apparatus body and tying material feed means for supplying a tying material to the tying apparatus body (140), wherein a motor output shaft of said drive and wire feed unit (141) and a drive shaft of the typing mechanism of said tying apparatus body (140) are connected by a flexible shaft (153) to transmit a driving force, wherein a continuous linear tying material is supplied from said drive and wire feed unit (141) to said tying apparatus body (140) for the automatic binding of an article, and wherein the tying mechanism selection of said tying body (140) comprises tying material bending means (8, 50, 56, 90) in engagement with and holding a part of a tying material (w) to be fed in a continuous linear fashion;
encompassing and guiding means (9, 35, 40, 95) for guiding the tying material around an article to be tied while bending the tying material a part of which is engaged in said tying material bending means and delivered from at least one side into a substantially U-shape;
cutting means (7, 75) for cutting said tying material into a predetermined length;
and twisting means (11, 62) for twisting both ends of the tying material together.

1 more element

Dependencies are inferred from the claim text.

Tying method and tying apparatus for articles

Life of this patent

Tying method and tying apparatus for articles

Life of this patent

Abstract

Claims23