DE7917080U1 - SAFETY DEVICE WITH PRESSURE FOR THE OPERATION OF HAND DEVICES FOR WALKING IN NAILS AND THE LIKE. - Google Patents

Description

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DMNC. E. HOFFMANN (WJff-l »« | · DIPl.-ING. W.EITIE · DR. HER. NAT. K. HOFFMANN · DIPl.-INC. W. LEHN

DIPl.-INC. K. FOCHSlE · Dl. (ER.NAT.B. HANSEN AItABEIlASIRASSE 4 (STERNHAUI) D-IOOO MÖNCHEN el TELEPHONE (OS?) 711087. TElEX OS-WiI? (PATHE)

G 79 17 080.2 32 269 p / kk

Umberto Monacelli Monza / Italy

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

It is known that generally operated by means of compressed air and for driving in nails, staples, wallpapering or. Upholstery nails and the like. Handheld devices can be controlled by a push button. '

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

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 near the first and having a stop on v / e which is able to to inhibit the stroke of the first pusher zv / ischen its first and its second position 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 5. '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 conventional and only partially in 10 shown hand tool for hammering, a control handle 12 is articulated at 11, which when moving on a

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

near the pusher 12 is a second pusher 15 at 14- hinged, on which a spring 16 acts, which tends to to bring it spontaneously into the position of FIG.

In this position, the stop 17 of the pusher 15 acts on the back of the pusher 12 in such a way that its rotation counterclockwise is prevented. Note that the stop position of the stop 17 on the handle 12 is such is that any action exerted on the pusher 12 in the sense of twisting it counterclockwise is 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 the stop 17 removed from the pusher 12, the latter can be moved comfortably to order 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 force exerted by the pressed pusher 12 on the same goes through the pin 14 and therefore the pressure on the pusher 12 seeks to rotate it counterclockwise, also to rotate the pusher 15 in the same direction, whereby you make sure that no accidental inhibitions can occur when shooting due to a lack of proper control of the Pusher 15, after the first actuation phase.

So you can be absolutely certain that any

Actuation of the control 13 to shoot as a result of any pressure on the pusher 12 is impossible unless the pusher 15 has moved for the time being, so that the movement started by the pusher is no longer hindered in any case. It will depend on the choice of the designer that it is 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 inhibit the completion of the stroke of the pusher 12 ; apparently everyone will choose the preferred compromise between security 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.

Claims (3)

HOFFMAN1M * - EITLE. & * PARTNER PATENT- AND LAWYERS PATENTANWÄLTE DIPU-INa. W. EITLE - DR. RER. NAT. K. HOFFMANN · DtPU-INe-W-LEK DIPU-ING. K. FDCHSLE. DR RER. NAT. S. HANSEN - DR. RER. NAT. HA. BRAUNS DIPI-INe. K. KOHLMANN - RECHTSANWALT A. NETTE G 79 17 080.2 263 p / kk Umberto Monacelli Monza / Italy Safety device with pusher for the operation of hand tools for driving in nails and similar protection claims 1. Safety device with trigger for operation a device for hammering elements, such as nails, staples, wallpapering and upholstery nails and the like, characterized by a first trigger (12) between a first inoperative position and a second position is movable in which it acts on an actuator of the impact device, wherein a second pusher (15) is articulated in the vicinity of the first and a stop (17) which restrains the first trigger (12) from moving between the positions, wherein a spring (16) in connection with the second pusher (15) stands. ARABELLA STREET 4. D-8OOO MONOHEfJ βΐ · ■ iTEi-EFÖN $ Oäcp'fcjibe> ■ TELEX B-SSSIO CPATHE) ■ TELECOPIER 0183SS 2. Apparatus according to claim 1, characterized in that the stop on the back of the first pusher (12) is applied. 3. Apparatus according to claim 1, characterized in that the articulation (14) of the second Pusher (15) is so that the stop (17) rests on the first pusher (12) in a straight line of action, which lies alternately on one side or the other of the linkage (14).