CN2068906U

CN2068906U - Tape rewinding device of thermo-sensitive colour tape for electric typewriter

Info

Publication number: CN2068906U
Application number: CN 90205526
Authority: CN
Inventors: 周小一
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-08
Filing date: 1990-05-08
Publication date: 1991-01-09

Abstract

The utility model relates to a ribbon rewinding device of thermo-sensitive ribbon for an electric typewriter, which is composed of a casing, a handle, a drive gear pair, a small steel wheel contacted with the shaft hole of a ribbon, etc. A thermo-sensitive ribbon box is placed in the enclosure of the tape rewinding device, with the handle rocked. The drive gear pair drives the small steel wheel to rotate, the small steel wheel and the inner wall of the shaft hole of the ribbon are mutually contacted, and consequently, the shaft of the ribbon is driven to rotate to achieve the goal of tape rewinding. In order to make the small steel wheel and the shaft hole of the ribbon closely combined, a spring is arranged on the shaft of the small steel wheel in order to make the small steel wheel axially move, and the external shape is made in conicalness.

Description

Tape rewinding device of thermo-sensitive colour tape for electric typewriter

The utility model relates to a kind of electronic typewriter thermal-printing thin film rewinder

Thermal-printing thin film extensive use on electronic typewriter at present continues to use but can't refund after using, and causes waste.

The purpose of this utility model is exactly repeatedly to use the thermal-printing thin film rewinder that designs for solving thermal-printing thin film.As long as will be put on the fixed position of this tape rewinding device with the thermal-printing thin film box of back (thermal-printing thin film is rolled up to an end), need not has any change on the ribbon cartridge, shake handle, colour band can be refunded the home position rapidly.

The purpose of this utility model is achieved in that the thermal-printing thin film box is put in fixed position on the tape rewinding device, shakes the tape rewinding device handle and drives the two little steel wheels that enter the ribbon cartridge slotted eye only through gear train assembly.See Fig. 2. make the equidirectional rotation of little steel wheel, rotate thereby drive axis of ribbon wheel, and colour band is refunded.

By most preferred embodiment, the utility model is described in detail below;

Fig. 1 is the front view of tape rewinding device

Fig. 2 is the top view of tape rewinding device

Fig. 3 is an A-A cross section view among Fig. 1.

Fig. 4 is that E among Fig. 3 is to view.

As Fig. 1 and Fig. 2, ribbon cartridge is placed on the position shown in the dotted line in the enclosure wall (Fig. 2-11), little steel wheel 3,4 enters the colour band axis hole naturally, and closely contacts with inwall; Shake this handle of handle 2(and can be contained in any one side of tape rewinding device) time, gear 5 clockwise rotates driven gear 6 and rotates counterclockwise, and gear 6 driven gear 7 again clockwise rotates.At this moment the gear 7 that clockwise rotates drives two pinions 8,9 again, rotates in the counterclockwise direction.A little steel wheel 3,4 that leans out housing and can enter the ribbon cartridge axis hole respectively is housed on pinion 8,9 coaxial.Two little steel wheels can lean against on the inwall of axis of ribbon wheel closely, and little steel wheel 3,4 just drives axis of ribbon wheel when turning clockwise and rotates counterclockwise, and reaches the destination that colour band is refunded.

The appearance of little steel wheel 3,4 is done coning on (as Fig. 3) and the axle spring 10 is housed, so that little steel wheel 3,4 is axially scalable and can combine closely with the colour band axis hole, as shown in Figure 3.

The E that Figure 4 shows that gear 8 and little steel wheel 4 is to view, and the outer surface of little steel wheel is made the ratchet shape, in order to avoid skid.

Claims

1, a kind of electronic typewriter thermal-printing thin film tape rewinding device is characterized in that it by housing 1, handle 2, and travelling gear is paid, the little steel wheel 3,4 that joins with the colour band axis hole and little steel wheel 3,4 is formed at axial telescopic spring 10.

2, tape rewinding device according to claim 1, it is characterized in that it is gear 5 by shaking with handle 2 that transmission is paid, the gear 6 that drives by gear 5, the gear 7 that drives by gear 6, by two pinions 8,9 that gear 7 drives, reach pinion 8,9 coaxial 3,4 compositions of little steel wheel of going up device.

3, tape rewinding device according to claim 2, but it is characterized in that the use of handle two sides.