Device for detecting leading end and remaining amount of strip-like material unrolled from roll

(19)

(11)

EP 0 395 023 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	05.06.1991 Bulletin 1991/23

(43)	Date of publication A2:
	31.10.1990 Bulletin 1990/44

(21)	Application number: 90107880.8

(22)	Date of filing: 25.04.1990

(51)	International Patent Classification (IPC)⁵: B65H 19/10

(84)	Designated Contracting States:
	DE GB IT

(30)

Priority:

26.04.1989 JP 104625/89

(71)	Applicant: JAPAN TOBACCO INC.
	Tokyo 105 (JP)

(72)	Inventor:
	Sakano, Makoto Tokyo (JP)

(74)	Representative: Popp, Eugen, Dr. et al
	MEISSNER, BOLTE & PARTNER Widenmayerstrasse 48 80538 München 80538 München (DE)

(56)

References cited: :

(54)	Device for detecting leading end and remaining amount of strip-like material unrolled from roll

(57) A device for detecting the leading end and the remaining amount of a strip-like material A) unrolled from a roll (R) is disclosed. This device includes a swing arm (5). A roller carrier (7) is pivotally mounted on the distal end portion of the swing arm (5). Two contact rollers 8) and a sensor (9) are arranged on the roller carrier (7). The contact rollers (8) of the roller carrier are brought into rolling contact with the peripheral surface of the roll. When the strip-like material is unrolled from the roll and the diameter of the roll is changed, the swing arm (5) swings so that the roller carrier (7) follows the change in diameter. Therefore, the sensor (9) is always adjacent to the peripheral surface of the roll (R), and can reliably detect an object to be detected (C) of the strip-like material (A) of the roll.

Search report