DEV0009083MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: June 22, 1955 Bckaimtgcniaclii; on October 25, 1956

GERMAN PATENT OFFICE

Typewriters are known to be in protective boxes or cases, small typewriters in particular transported in cases or even in briefcases. The size of such protective boxes, suitcases or to make cases as small as possible is the aim of all manufacturers of typewriters, in particular, these means of transport must be kept as low as possible. The often fails because of the free-standing line shift lever, which significantly towers over the machine.

Portable typewriters have already become known, both of which have the entire line lever is pivotably arranged. Such a design requires a relatively strong one Storage of the lever, which is very long, which affects the appearance of the machine will. Furthermore, the locking of such levers in the two end positions is unsafe and must as a result of the long lever arm be made strong if the line shift lever is not when Writing is accidentally pushed into the switch position. Has one forgotten in the meantime Pressing the lever into the off position after writing can be done by the powerful lock when the case is put on, it will be damaged. The reverse can be done with swiveled Lever the casing of the machine can be damaged if you forget to pull the lever

609 659/20

V 9083 XII / 15 g

need to fold up. The locking in the rest position itself is cumbersome, it takes place at the known versions by folding and

; '':. Latching the; Lift '\ m a hook or by pressing and locking the lever into a groove

·. in the. Roll turning heads-it can-even happen that when the suitcase was closed, the line shift lever was bent or broken off, even the whole writing carriage is crushed and deformed,

ίο if before closing the folding in the rest position is not made.

Small typewriters are also known in which one at the outer end of the line switch lever Handle held in a horizontal position

As is arranged, the- _Y au, s, .a, vertically upwardly directed Lageainj !: ΐ..8ο ° 'inr. This handle is only brought into the upper end position by tilting its center of gravity and placing an edge on the line switch lever. In the lower end position, the handle hangs freely. It is therefore also possible to cause the handle to pivot away from its upper position by means of a stop impact of the carriage. There is also a danger with this construction

«» ■ '- ■■■ of bending or breaking off the line shift lever when closing the suitcase, if you forget to take the handle out of its, pointing vertically upwards Pivot position to the hanging .30 position. In the construction under consideration it can be ^ not even from a shapely, self, the lines

- ■ shift lever adapting handle are spoken, which enhances the appearance of the machine.

The invention has for its object to provide a Zei-.

gearshift lever to ^J s'onäfferi, which allows a suitcase to be held low, but nevertheless neither gives the machine an unattractive appearance nor damages the suitcase or the machine if it is not locked into a blocked position.

This is achieved by - that only the handle of the line shift lever can be pivoted in the vertical direction and is secured in its end positions.

A compression spring is advantageous in front of the pivot point of the pivotable handle on the line shift lever arranged between the line shift lever and an approach located on the handle, the pivotable Holds handle secured in its end positions limited by the stop edges of the handle. _

The spring can be arranged on a guide bolt mounted on the front end of the row peeling lever swivel bearing. The handle of the line shift lever is expediently designed in such a way that both compression springs and guide pins are covered. '' ■ Ϊ * ..

The drawing explains the subject matter of the invention in an exemplary embodiment. It shows

Fig. Ι a side view of the, line shift lever after the Ernndung _{; 1 in '} rest position, · ·

Ab.b- 2 is a side view of the line shift lever

6e according to the invention in the working position and;

Fig. 3 is a plan view of the line shift lever, with ι the line shift lever is referred to, which in

known manner on; the axis 2 is mounted. The line shift lever has an axle pin 3,,, about which a handle 4 can pivot. The handle 4 is designed as a stamped or pressed piece and has an abutment 5 inside . On the guide pin 6, which has a surface 8, · is ^! A compression spring 9 is arranged between this surface 8 and the abutment 5 of the handle 4, which, together with the guide pin 6, is hidden in the interior of the handle 4. The handle 4 also has a stop edge at 10, while the inner surface 11 serves as a further stop., ..

The mode of operation of the line shift lever according to the invention is as follows; In the rest position, the handle 4 is pressed down (Fig. 1). It lies the front part of the compression spring slightly below that placed by the two pivot points 3 and 7 Straight lines. If the handle is to be brought into the working position, a 'slight' pressure from below is sufficient against the handle, whereby the compression spring is initially compressed a little, namely when its longitudinal axis falls into the straight line mentioned, and then expands again and thereby the -moving-. borrowed handle pushes up until its stop 10 comes to rest on the line shift lever 1. Has the handle reaches this final position, it is in the position of use. Should he from this position of use are pushed back into the rest position, then he receives a pressure from above, which under certain circumstances so— can even be exercised from the attached case lid. The spring is doing it back up in the straight line passing through the pivot axes is compressed, it then expands again and presses the handle down until its stop surface 11 rests on the line shift lever 1. '_

The pressure that is necessary for the handle part to spring back from the working position to the rest position, is expediently greater than the pressure required to switch from the rest position to the working position is. This has been achieved by the fact that the angle that the spring opposite in its end position which forms straight lines laid through the two pivot points, is significantly larger upwards than down. This configuration also has the special value that when moving the Carriage the lower edge 12 of the handle 4 on the Covering ■ the ■ typewriter. can meet and thereby the handle switches upwards completely by itself. "'

Claims (1)

PATENT CLAIMS: i. Line shift lever for typewriters, ·. '■ especially for portable typewriters, there-. characterized by that hur der. The handle (4) of the line shift lever can be pivoted in the vertical direction and is secured in its end positions . · ■: · '. ■:; · .-.! ■ · ■■ ■: ■' .2. Line shift lever according to claim 1, characterized marked ,, that advantageous before · .dem 6Ο9-Φ9 / 2Ο V 9083 XII / 15g The pivot point of the pivotable handle (4) on the line shift lever (1) is a compression spring (9) between Line shift lever (1) and a handle (4) located approach (5) is arranged, which the swiveling handle (4) in its end positions limited by the stop edges of the handle holds securely. 3. line shift lever according to claim 2, characterized in that the spring (9) on one at the front end of the line shift lever (ι) pivotably mounted guide pin (6) is arranged. 4. line shift lever according to claim 1 to 3, characterized in that the handle (4) of the Line shift lever (1) is designed so that both compression spring (9) and guide pin (6) are arranged in the handle (4). . Considered publications:
German patent specification No. 830447. · 1 sheet of drawings