Pants having an elastic belt, and process for the manufacture th

Details Pants having an elastic belt, and process for the manufacture th Pants having an elastic belt, and process for the manufacture th

1986-01-16

1988-09-20

Hunter, H. Hampton

Apparel

Nether garments

Bifurcated

2238, 2402, 2403, 2406, 604392, A41F 902, A41B 914, A61F 1316

Patent

active

047714832

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to pants having an elastic belt and produced from a flat piece of flexible material, of rectangular general shape, and to a process for the manufacture of such pants.
The conventional manufacture of articles of clothing of the pants type, whether pants made from textile materials or sanitary articles such as, for example, pilches for incontinent adults or children, requires numerous operations which are ill suited to continuous high-speed manufacture. Problems arise, in particular, in the production of pants having elastic belts. To enable the pants to be continuously manufactured from material in strip form, without interrupting the advancing movement of the strip, elastic belt elements would have to be added or formed in the direction of the movement of the strip, whereas, according to the conventional manufacturing processes, the pants are formed from the strip of material in a manner such that the belt parts are aligned perpendicularly to the direction of movement of the strip.
The subject of the present invention is pants having an elastic belt, of simple design, suitable for continuous high-speed manufacture.
Another subject of the invention is a continuous process for manufacturing pants having an elastic belt, from a material in strip form, according to which process all the operations, and particularly those relating to the attaching of elastic belt elements, can be performed continuously, without interrupting the forward movement of the strip of material.
The pants according to the invention, having an elastic belt, are produced from a flat piece of flexible material, of rectangular general shape. The pants comprise two elastic elements extending, when the said piece of flexible material is laid flat, in the stretched state along the two opposing lengthwise edges of the said piece. The two ends of each of the said elastic elements are attached to the said piece at points situated in the vicinity of the two transverse ends of the latter. Thus the two elastic elements together with the said piece delimit, when the pants in slip form are in the position of use, two apertures for the passage of the legs and form two elastic belt elements at waist height.
On the pants according to the invention, the two elastic belt elements can be formed by elements added to the piece of flexible material, their two ends being fixed to the said piece.
According to another embodiment of the pants according to the invention, the two elastic belt elements are formed by two lengthwise strips delimited, in the material of the said piece, by two partial lengthwise cuts made in the said piece, between the two transverse ends of the latter, set back inwards relative to the opposing lengthwise edges of the said piece.
The elastic elements are advantageously fixed to the piece of flexible material in a mitered manner relative to the corners of this piece.
The process according to the invention for the continuous manufacture of pants consists, according to one embodiment, in:
continuously feeding, in the stretched state, at least one strip of a flexible material,
continuously feeding, parallel to the direction of movement of the strip, from either side of the lengthwise median axis of the latter, elastic elements in the stretched state,
determining a basic length of the strip corresponding to the length necessary for manufacturing one pair of pants, the strip then being considered as forming a succession of blanks,
fixing, to the strip in the stretched state, the elastic elements in the stretched state in the direction of movement of the strip, this fixing taking place at points close to the rear end and front end of each blank, and
cutting the strip and the elastic elements in the transverse direction, in the zone of separation between consecutive blanks.
The process according to the invention for the continuous manufacture of pants, in accordance with another embodiment, consists in:
continuously feeding, in the stretched state, at least one strip of a flexible material,
continuously feeding, par

REFERENCES:
patent: 2408723 (1946-10-01), Arpin et al.
patent: 2419867 (1947-04-01), Woodman
patent: 3488778 (1970-01-01), Gaujon et al.
patent: 3491763 (1970-01-01), Osterman et al.
patent: 3560292 (1971-02-01), Butler
patent: 4227952 (1980-10-01), Sabee
patent: 4297157 (1981-10-01), Van Vliet
patent: 4407284 (1983-10-01), Pieniak

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