[특허]Method and apparatus for applying elastic band onto moving web

[미국특허] Method and apparatus for applying elastic band onto moving web 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B32B-031/00
출원번호	US-0499007 (1990-03-26)
우선권정보	JP-0206157 (1987-08-18)
발명자 / 주소	Ujimoto Hiroshi (Kawanoe JPX) Nomura Hironori (Iyomishima JPX) Shimakawa Taiji (Kawanoe JPX) Shinohara Junji (Iyomishima JPX) Kobayashi Shigetoyo (Kagawa JPX) Yamamoto Hiroki (Kawanoe JPX)
출원인 / 주소	Uni-Charm Corporation (Ehime JPX 03)
인용정보	피인용 횟수 : 56 인용 특허 : 0

초록 ▼

The present invention generally resides in method and apparatus for intermittently applying pieces of elastic band severed into a predetermined length onto a moving continuous web at predetermined positions. The apparatus comprising elastic band transfer means including a plurality of independently rotatable rotor elements coaxially supported in rotatable fashion and carrying on respective arc-shaped outer surfaces suction members wherein the respective rotor elements carrying the respective suction members are adapted to be rotated along common circumferential path and the respective rotor elements are coupled to a drive wheel eccentrically located relative to a rotational center of the respective rotor elements and adapted to be rotated at a constant speed by a rotatable slider crank mechanism; suction distributor means for the respective suction members, adapted to operate synchronously with rotation of the drive wheel; means to feed continuous elastic band tangentially to the circumferential path of the respective suction members; means intermittently cooperating with one of the respective suction members periodically advanced by the elastic band transfer means to a predetermined position to sever the continuous elastic band; and web feeding means located in opposition to an end position of transport of the severed piece of elastic band along the circumferential path so that the piece of elastic band may be effectively transferred onto the web. This apparatus may further comprise means by which at least one ends of the respective suction members are pivotally supported by the respective rotor elements in laterally displaceable fashion so that the one ends are laterally displaced as the respective rotor elements rotate.

대표청구항 ▼

Apparatus for intermittently severing two continuous bands of elastic into a series of pieces (5) of predetermined length and thereafter applying these pieces (5) to a moving continuous web (1) in spaced apart relationship to each other, said apparatus comprising in combination (a) a plurality of separate but circumferentially aligned rotor elements (26, 26a) that are sequentially spaced apart and rotatably supported by a first shaft (15) about an axis 0, (b) each rotor element (26, 226a) being provided with at least two suction members (12) having arc-shaped outer surfaces that are laterally spaced from each other, each suction member (12) being adapted to hold one piece (5) of said elastic band against its arc-shaped outer surface, (c) suction distributor means (13) associated with said suction members (12) to alternately apply suction and release suction from said suction members 12, (d) a drive wheel (20) mounted on a second shaft having an axis 0′that is offset from the 0 axis of said first shaft (15), (e) each rotor element (26, 26a) having a side wall that is provided with guide piece (49-51) and the drive wheel (20) being provided with a number of slidable engaging pins (48), each engaging pin (48) slidably engaging with a guide piece (49-51) whereby when the drive wheel (20) is rotated at constant speed the rotor elements (20, 26) are independently rotated at a variable speed following a common rotational path with the result that each pair of adjacent rotor elements (20, 26) are alternately moved close to each other and then farther apart from each other, (f) means to separately feed each of said two continuous elastic bands against the outer arcuate surfaces of said suction members (12), (g) severing means (41) intermittently cooperating with said suction members (12) to sever said continuous elastic band into pieces (5), and (h) web feeding means (10) located near the rotational path of said suction members (12) for transferring each severed piece (5) of elastic band to said continuous web (1).

이 특허를 인용한 특허 (56) 인용/피인용 타임라인 분석

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[미국특허] Method and apparatus for applying elastic band onto moving web 원문보기

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[미국특허] Method and apparatus for applying elastic band onto moving web 원문보기

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