DE2923997A1 - SAFETY DEVICE WITH PRESSURE FOR THE OPERATION OF HAND DEVICES FOR WALKING IN NAILS AND THE LIKE - Google Patents

Description

HOFFMANN · EITLE &! PARTNER

PATENT LAWYERS

DR. ING. E. HOFFMANN (1930-1976). DIPL-I NG. W.EITLE. DR. RER. NAT. K. HOFFMANN DIPL.-ING. W. LEH N

D1PL.-ING. K. FDCHSLE DR. RER. NAT. B. HANSEN ARABELLASTRASSE 4 (STAR HOUSE). D-8000 MD N CH EN 81 - TELEPHONE (089) 911087. TELEX 05-29619 (PATH E)

32 268

UMBERTO MONACELLI, MONZA / ITALY

Safety device with pusher for operation of hand tools for driving nails and the like

It is known to be generally operated by means of compressed air and for driving in nails, staples, wallpapering and Upholstery nails and the like, hand tools by one Pushers can be controlled.

The performance of these devices is such that the one to be taken Element represents a dangerous projectile,

909881/0 28

if it is accidentally shot at people.

The invention relates to a control device for this type of equipment, which is capable of dangerous accidental Avoid actuation, while being easy to use and manufacture.

In particular, the device comprises a first pusher which is intended to switch between a first inoperative Position and a second position in which it acts on an actuator of the impactor, a second pusher being articulated in the vicinity of the first and having a stop capable of inhibit the stroke of the first pusher between its first and second positions when the second pusher is in a spontaneous position from which it can be removed in counteraction to a spring.

In order to better explain the objects and features of a device of the type proposed by the invention, will an exemplary embodiment is described below, which is shown in the accompanying drawing. Show it:

Figures 1 and 2 are a schematic side view in two

different job positions; and

3 and 4 sections along the section lines III-III

and IV-IV of FIGS. 1 and 2.

On the body of a hand-held device that is conventional per se and is only partially shown in FIG. 10, there is a at 11 Control pusher 12 hinged, which when moving on a

9 0 3 8 8 1 / 0.v 2 8

Switching element 13 acts that the shot of the to be taken Element controls by the action of a servo control with compressed air or any other desired energy source.

In the vicinity of the pusher 12 is a second pusher at 14 hinged on which a spring 16 acts, which seeks to to bring it spontaneously into the position of FIG.

The stop 17 of the trigger 15 acts in this position on the back of the pusher 12 in such a way that its counter-clockwise rotation is prevented. Note that the stop position of the stop 17 on the pusher ^ is such that each exercised on the pusher 12 in the same way Effect that it is twisted counterclockwise, one Thrust on the stop 17 with such a direction that the trigger 15 is caused to close clockwise turn, so not to leave its inhibited position.

If, on the other hand, you first act on the pusher 15 and remove the stop 17 from the pusher 12, the latter can, conveniently moved to command the shot (Fig. 2). It should be noted that after a relatively short Rotation of the pusher 15, the stop 17 overtakes the dead center, which is why the pressed pusher 12 exerted on the same Force goes through the pin 14 and therefore the pressure on the pusher 12 to turn it counterclockwise seeks to turn the trigger 15 in the same direction, which ensures that there are no accidental inhibitions when shooting can occur, due to a lack of proper control of the trigger 15, after the first actuation phase.

So you can be absolutely certain that any

28

Actuation of the controller 13 to fire as a result of any It is impossible to press the pusher 12 if the pusher 15 has not moved so that the pusher is released Movement that has already started is no longer hindered. It will depend on the designer's choice that provided how far the first part of the stroke of the pusher 12 should be, after which the stop 17 overtakes the dead center and is therefore no longer able to terminate the To inhibit the stroke of the trigger 12; apparently everyone will choose the preferred compromise between safety of initial inhibition and ease of operation of the complex.

The specific shape of the individual parts of the safety device shown can of course vary, too strong, without impairing the overall functionality and the principle of the subject matter of the present invention abandon educational innovation.

909881/0728

Claims (3)

HOFPMANN · EITLE & FARTNER PATENT LAWYERS DR. ING. E. HOFFMANN (1930-1974) D I PL-I N G. W. EITLE D R. RER. NAT. K. H OFFMAN N · D I PL.-I N G. W. LEH N DIPL.-ING. K. FÖCHSLE DR. RER. NAT. B. HANSEN ARABELLASTRASSE 4 (STERNHAUS) D-8000 MO N CH EN 81 TELEPHONE (089) 911087 TELEX 05-29619 (PATH E) 32 268 UMBERTO MONÄCELLI, MONZA / ITALY Safety device with pusher for the operation of hand tools - for driving nails and like that PATENT CLAIMS Safety device with pusher for operation a device for hammering elements such as nails, Staples, wallpapering and upholstery nails and the like, comprising a first pusher which is intended to to move between a first inoperative position and a second position in which he is on an actuator of the impactor acts, with a second pusher being articulated in the vicinity of the first and has a stop which is capable of the stroke of the first trigger between its first and its second position to inhibit when the second 81- / 0 28 2953997 The pusher is in a spontaneous position, from which it can be removed in counteraction to a spring. 2. Device according to claim 1, characterized in that said stop on the Acts on the back of the first pusher. 3. Apparatus according to claim 1, characterized in that the position of the articulation of the second pusher is such that the stop acts on the first pusher with a straight line of action, which overtakes the articulation of the second pusher in order to overcome the dead center and a stability position to reach. 909881/0 ° 28 ORIGINAL INSPECTED