GB2190108A

GB2190108A - Method of making patterns on tufted carpets

Info

Publication number: GB2190108A
Application number: GB08707077A
Authority: GB
Inventors: Katsushi Yamaguchi
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-05-09
Filing date: 1987-03-25
Publication date: 1987-11-11
Also published as: JPH02465B2; GB8707077D0; JPS62263362A; DE3715215A1

Description

GB 2 190 108 A SPECIFICATION accordance with the method of the present

invention.

Method for making patterns on tufted carpets In the present invention, a pile-forming mechanism 1 as shown in Figure 1 disclosed in The present invention relates to a method for making 70 Japanese utility model publication No. 59-31752 is patterns on tufted carpets. used. A looper4 and a flat spring 5 are mounted on With a growing trend toward high-grade goods, the upper end of a rocker arm 3 supported on a shaft consumers nowadays have preference fortufted 2. The looper 4 and the flat spring 5 are swung to and carpets having more complicated patterns. In order fro by a crank6. PHeyarns 10 arefed to a plurality& to meetthis requirement, the production of tufted 75 needles 9from feed rolls 71,72 through a guide carpets is increasing using cut piles and loop piles in means 8. Asthe needles 9 move up and down,the combination, or a combination of high and low piles, pileyarns are planted in basefabric B intermittently ora combination of high, middle and low piles, or fed from a spiked roll 11. Pileyarns made into loops combining them in various manners. bythe looper4 are classified by means of theflat An apparatusfor making patterns on tufted 80 spring 5 moved back and forth by a drive unit such as carpets is disclosed in Japanese patent an air cylinder 12, so that loop yarns hooked on the non-examined publication No. 60-162854. With this looper 4 are cut attheirtips by a vertically movable apparatus, a pattern recognition device reads a knife 13 to form cut piles, while the other yarns not predetermined pattern and gives electrical signals hooked form loop piles. The looper4,fiat spring 5 for high-speed, middle-speed or low-speed 85 and knife 13 in combination constitute a cut pile operation according to the pattern so as to selectthe forming mechanism. Thus a tufted carpet with a feed rate of pile yarn fed from feed rollers to needles desired pattern made up of a combination of cut - from among three rates for each stitch cycle. An piles and loop piles is woven. The operation of the air electromagnetic valve opened and closed selectively cylinder 12 is controlled by the opening and closing bythe signal for high-speed operation actuates an air 90 of an electromagnetic valve 15 connected to a source cylinder, which drives a knife to cut loop piles of compressed air, 14.

selectivelyso asto form cut piles. With this priorart, With the present invention, the pHeforming a tufted carpetwoven of a combination of four kinds mechanism 1 is controlled by a control device 17 of piles, i.e., high loop piles, high cut piles, middle according tothe data for a desired pattern which is loop piles and low loop piles is obtainable. 95 stored in a storage device 16. Namely,the control The problem with the conventional method isthat device 17 selects onefeed rate of pile yarns from the onlywhen a high-speed operation signal is feed rolls 71,72 from among high, middle and low produced,the aircylinder is selectively actuated or feed ratesfor every stitch cycle in accordancewith not. Thus, selection between cut piles and loop piles the data forthe pattern of tufted carpet which are can be made onlyfor high piles which are formed 100 stored in the storage device 16 to form high, middle when the pile yarns are fed at a high rate from feed and low piles, respectively. The air cylinder 12 is rollers. actuated by opening or closing the electromagnetic An object of the present invention is to provide a valve 15, actuating the cut pile forming mechanism 1 method for making patterns on tufted carpetswhich to selectively cut or not cut high, middle and low obviates the abovesaid shortcomings and makes it 105 piles.

possible to produce a tufted carpet woven by more With the present invention, high, middle and low complicated combinations. piles can beformed into either loop piles or cut piles.

In accordancewith the present invention, there is Thus, as shown in Figures 2,3 and 4, it is possibleto provided a method for making patterns on tufted obtain a tufted carpet woven from a combination of carpets comprising the steps of forming loops from 110 high cut piles HC, high loop piles HL, middle cut piles pile yarns fed from a plurality of feed roliswhile MC, middle loop piles ML, low loop piles LL and low weaving them into a base fabric by means of a cut piles LC (not shown) according to the data for a plurality of sets comprising needles and loopers, and desired pattern of the tufted carpet stored in the cutting some of the loops by means of a knife to form storage device 16.

cut piles, characterised in that according to the data 115 With the present invention, the freedom of choice for a desired pattern stored in a storage device, the of tufted carpet design will greatly be extended since feed rate of the pile yarns fed from the feed rolls is it is possible to form piles, whetherthey are high selectively controlled for each stitch cycle to form piles, middle piles or low piles, selectively into either high, middle or low piles, and any of the high, middle loop piles or cut piles according to the data stored in and low piles are selectively cut or left uncutto form 120 the storage device.

selectively cut piles or loop piles, respectively.

Claims

Otherfeatures and objects of the present invention CLAIMS will become

apparentfrom the following description with reference to the accompanying drawings, in 1. A method for making patterns on tufted which: 125 carpets comprising the steps of forming loops from Figure 1 is a schematieviewof an example of a pile yarns fed from a plurality of feed rolls while tufted carpet weaving machine used for the method weaving them into abase fabric by means of a in accordance with the present invention; plurality of sets comprising needles and loopers, and Figures 2,3 and 4are schematic sectional views cutting some of said loops by means of a knife to showing the structures of tufted carpets woven in 130 form cut piles, 2 GB 2 190 108 A 2 characterised in that according to the data fora desired pattern stored in a storage device, the feed rate of the pile yarns fed from the feed rolls is selectively controlled for each stitch cycle to form high, middle or low piles, and any of said high, middle and low piles are selectively cut or left uncut to form selectively cut piles or loop piles, respectively.
2. A method for making patterns on tufted carpets, substantially as herein described with reference to the accompanying drawings.

Printed for Her Majesty's Stationery Office by Croydon Printing Company (UK) Ltd,9187, D8991685. Published byThe Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies maybe obtained.