DEG0012131MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: July 6, 1953. Advertised on November 8, 1956

GERMAN PATENT OFFICE

G 12131 VIIIb / 21 c

has been named as the inventor

and tariff guard

There are known automatic switching devices whose resetting is carried out by means of a spring. Since the storage force spring in addition to the contact separation, the reset functions' for the locking device and has to take over for the switch button, arise with firmly attached toggle systems and other arrangements due to the forces occurring at the same time of the switching process at the moment of contact separation.

The invention excludes delays in the contact separation, that the spring the executes the individual reset functions one after the other. This is used in the first phase of the release process the full spring force only for the contact separation, while the resetting of the locking device and the button only one after the other in the second and third phase of the reset process he follows. The prerequisites for a staggered sequence of the individual Resetting functions are according to the invention by the selected freewheeling routes and the special Guaranteed training of the interlocking switching and locking parts. the The switch button as a loose section is in the on position by a special arrangement latched to the shift lever.

In the figures, the invention is illustrated by way of example.

Fig. Ι shows a switch design with trip-free release in unlocked position and

Fig. 2 in a locked position;

Fig. 3 shows the main part of the switch lock in a view from the front and from the side.

«09 706/320

G 12131VIIIb / '21c

The lock parts lying in one plane and working without overlapping or intersection, the switching lever S, the locking lever 6 and the release lever 8 are in one by means of a plug-in axle Longitudinal slot of the main lock part 7 housed. The part 7 has an approximately heart-shaped recess 11. The ball 3, which serves as a locking element, which forms a system acting as a toggle lever with the shift lever 5 and the locking lever L6 loosely in the approximately heart-shaped recess that delimits the possibility of ball movement 11 of the main lock piece 7. Between the approach 12 of the part 7 and the approach 13 of the Shift lever 5, a tension spring 4 is hooked under bias, which, according to Fig. 1, the lock parts holds in the unlocked position. A force is exerted on the locking lever through the nose 10 of the shift lever-S 6 exercised, the ball 3 in this way together with the end face 16 of the shift lever 5 pushes its upper position (Fig. 1). Through the ball 3, the button 1 is in its topmost Location pushed. During this rotation of the locking lever 6, the release button 9 is simultaneously over the release lever 8 held in its position,

To switch on the switch and to achieve the locked state shown in Fig. 2 switch button 1 is pressed. This presses the ball 3 by means of his lower edge between shift lever 5 and release lever 6, with rotation of the shift lever 5 the spring 4 is tensioned and the nose 10 of the switching lever 5 releases the levers 6 and 8. The release lever 6 is rotated slightly clockwise by the movement of the ball 3, whereby the release button 9 is raised a little over the release lever 8 and held in this position will. The switch button 1 is at the same time by an approach on the switch lever 5 in its on position latched.

The loosely inserted release button 9, which has a nose 14 as a limit stop, receives its leadership through a corresponding recess in Überwiurfstück 2 and by the Cover cap formed area 15.

The trip-free comes about, that with the cancellation of the shown in Fig. 2 Blocking by turning the locking lever 6, the ball 3 can evade to the left, which also the trip-free is guaranteed when reconnecting to an existing short-circuit. By appropriate shaping of the nose 10 on the shift lever 5 and the locking lever 6 is achieved that the intervention that arises between these even when switching on again on an existing short circuit only in the last phase of the movement of the nose 10 brings about the resetting of the switching mechanism parts. The switching lever 5 is not hindered in its switch-off movement, since the resetting process only takes place in its last phase, while the contact separation is already in its first movement phase has taken place.

Claims (4)

PATENT CLAIMS:. . i. Energy storage and reset device, especially for small circuit breakers, motor protection switches and tariff monitors where the Energy storage for the contact separation and the resetting of the switching mechanism by means of a single, pre-tensioned tension spring, characterized in that the switching lever (5) carries a nose (10) which during the switching off movement of the switching lever (5) in such a way the switching mechanism acts that thereby 'the resetting of the switching, locking and operating elements (1, 6, 8, 9) is effected and that also the shift lever is in its on position engages in a notch in the switch button (1) and holds it in place. 2. energy storage and restoring device according to claim 1, characterized in that the release button (9) has an asymmetrical limit stop (14). 3. energy storage and reset device according to claims 1 and 2, characterized in that that the function of the contact separation as well as the resetting of the switching mechanism and the spring (4) taking over the operating buttons in the tensioned state on a curved part of the shift lever go (5), which is formed by its end face, rests or is freely stretched on the shift lever is appropriate. ......... 4. energy storage and reset device according to claims 1 to 3, characterized in that that the main lock piece (7) of the switching mechanism for the movement of switching mechanism parts is provided with a recess (11) and on the lower part for hanging the tension spring (4) has a nose (12) or a shoulder or a recess. Considered publications:
German patent specifications No. 827 984, 729 802. 1 sheet of drawings © 60S 706/320 10.56