SU574769A1

SU574769A1 - Tape quantity indicator for cassette-type stores

Info

Publication number: SU574769A1
Application number: SU7602328132A
Authority: SU
Inventors: Эдик Агаджанович Егиян; Владимир Васильевич Ковганко
Original assignee: Предприятие П/Я А-3593
Priority date: 1976-02-26
Filing date: 1976-02-26
Publication date: 1977-09-30

Description

1one

Изобретение относитс к технике магнитной записи, а именно к устройства.м индикации количества магнитной ленты в кассетных накопител х.The invention relates to a magnetic recording technique, in particular, to a device. An indication of the number of magnetic tapes in cassette drives.

Известен индикатор количества магнитной ленты, содержан1,ий приемную катушку, редуктор , соедииенный с приемной катушкой, и указатель, св занный с редуктором ременной передачей 1.The indicator of the amount of magnetic tape is known, it contains a receiving coil, a gearbox coupled to the receiving coil, and a pointer associated with the gearbox of a belt drive 1.

Ременна нередача ограничивает возможности расположени указател и не допускает дистанционной индикации.The belt restraint limits the location of the indicator and does not allow remote indication.

Известен также индикатор количества ленты дл кассетных накопителей, содержащий подвижный упор, соединенный реечной передачей с осью потенциометрического датчика, редуктор ц катушки, установленные с возможностью врашени на валу, закренленпом в кассете . В этом устройстве потенциометрнческий датчик обеспечивает дистанционное подключение указател . Кроме того, редуктор выполнен плоским, что позвол ет разместить его в габаритах стандартной кассеты. Этот индикатор вл етс наиболее близким по технической сущности и достигаемому эффекту к онисываемому изобретению.Also known is an indicator of the number of tapes for cassette drives, containing a movable stop connected by a rack and pinion to the axis of a potentiometric sensor, a coil reduction gear and m mounted on a shaft and locked in a cassette. In this device, a potentiometer sensor provides a remote indicator connection. In addition, the gearbox is made flat, which allows it to be placed in the dimensions of a standard cassette. This indicator is the closest to the technical essence and the achieved effect to the onisable invention.

Недостаток такого индикатора состоит в том, что угол поворота оси цотенциометрического датчика не пропорционален длине носител . Это не нозвол ет определнть метражThe disadvantage of this indicator is that the angle of rotation of the axis of the potentiometric sensor is not proportional to the length of the carrier. It is not possible to determine the footage.

оставшегос или израсходованного носител . Целью изобретени вл етс индикаци метража магнитной ленты и обеспечение компактности устройства.remaining or consumed media. The aim of the invention is to indicate the magnetic tape meter and ensure the compactness of the device.

С этой целью в индикаторе количества ленты дл кассетных накопителей, содержащем подвилхный упор, соединенный реечной передачей с осью потенциометрического датчика, редуктор и катушки, устаповленныс с возмол ностью вращени на валу, закрепленном в кассете, подвижный упор снабжен нальцем, а редуктор выполнен в виде зубчатого сателлита и двух шестерен с разным числом зубьев, одна из которых неподвижно закреплена на валу, а втора установлена на том же валу с воз.можностью вращени и выполнена со сннральным пазом, в котором размещен палец, причем сателлит сцеплен с обенмп шестерн ми и установлен на осн вращенн , укренлениой па щечке катушки.For this purpose, in the tape cassette tape indicator, containing a sub-stop, connected by a rack and pinion transmission to the axis of a potentiometric sensor, a gearbox and coils, mounted on a shaft fixed in a cassette, the movable stop is provided with a jib, and the gearbox is designed as a gear satellite and two gears with a different number of teeth, one of which is fixed on the shaft, and the second is mounted on the same shaft with the possibility of rotation and is made with a snap groove in which the pin is placed The satellite is coupled with the obenmp gears and is mounted on a primary rotary, reinforcing pa reel cheek.

На фнг. 1 показан опнсываемый индикатор в устройстве магнитной занпси; на фиг. 2 - разрез по А-А на фиг. 1.On fng. 1 shows an indicator in a magnetic zanpsi device; in fig. 2 is a section along A-A in FIG. one.

Claims

The 11knkator includes a fixed stop 1, made with pick-up 2, a rack and pinion gear made with toothed rack 3, spring 4 and toothed wheel 5 mounted on base G of potentiometer sensor 7, coils 8 and 9 with magnetic tape 10 mounted for rotation on the shaft 11, mounted in the cassette 12, and a gearbox made with a serrated satellite 13 mounted on an axis 14 mounted on a coil 15 of a coil 9, a gear 16 fixedly mounted on a shaft 11, and a gear 17 mounted on a shaft 11 rotatably and made with snn The rotary groove 18. Gears 16 and 17 have a different number of teeth, the module of which provides for their saping with the satellite 13. With a lie; Ennn of the coil 9; 16 and 17. Thus, the angle of rotation of gear 17 is proportional to the number of revolutions of the coils 9. To convert the number of revolutions of the coil 9 to the meter of the carrier, the increment of the polar radius of the groove 18 when rotating the gear 17 through a certain angle should be proportional to eneniyu length bobbin carrier 9 at sootvetstvuyushaya, it katushkn this number of revolutions. The polarity of the polar radius of the groove 18 and the corresponding movement of the finger 2 of the movable support 1 are linearly converted into the angle of rotation of the axis 6 of the potentiometric sensor 7 and the remote indicator (not shown). The present invention provides compactness of the device due to the use of a flat gearbox and at the same time allows to distantly display the footage of the magnetic tape in the cassette drive. Claim number tape cassette indicator comprising a movable stop connected by a rack and pinion to the axis of a potentiometric sensor, a gearbox and coils mounted rotatably on a shaft fixed in a cassette, characterized in that in order to indicate the magnetic tape meter and ensure compactness device, the movable stop is provided with a finger, and the gearbox is made in the form of a toothed satellite and two gears with different numbers of teeth, one of which is fixed on the shaft, and the second is mounted on the same shaft so that it can rotate and is made with a sliding groove in which the pin is placed, the satellite being engaged with both gears and mounted on the axis of rotation fixed on the cheek of the coil. Sources of information taken into account in the examination 1. US patent number 3726492, cl. 242-201, 04/10/73.

2. USSR author's certificate number 491152, cl. G 11B 15/00, 20.05.74.

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