DE1894696U - IMPACT TOOL. - Google Patents

Description

Andre J. PIOT, in Thalwil (Canton of Zurich, Switzerland).

Impact tool

Priority: Switzerland, from May 9, 1961

. The invention relates to an impact tool which; is characterized in that it comprises a body which i: having an impact head and a movable mass, which is arranged in I a bore of the body and (displaceable therein, said elastic Ru'ckholeinrichtungen the mass in the r rest position in an axial receive position in which it is away from the adjacent the impact head front end of the bore i, .a liquid to the front part of the bore | met and through a transfer channel with a small cross section, can escape when the 'mass by the impact of the percussion j head is thrown forward onto an obstacle and puts the liquid under pressure, whereby the formation is made in such a way that

that the arrest of the mass is dampened and inertial. krä'fte generated - which outlast the moment of impact Wkd to prevent rebounding of the tool..

The invention is described below with reference to. Drawing "explained by way of example.

Fig. 1 is an axial section of a mass according to the invention - Pig # 2 is an axial section of a hammer according to the invention. '"." .- "'." . ■ I ¹ Ig »3 is a section along the line 3-3 of the Pig" »2- *

The mass shown in Pig. 1 has a body 1 which is formed by a pipe section 2 which is closed at its "ends" by two soldered-in bottoms 3 _? 3 * in the bore 4 of the body 1 there is a movable mass "5, which is held in the middle position shown by two opposing peers 6,6 *. The movable mass 5 is located in a fluid 7 and contains an axial bore 8, which connects the sections 9 and 10 of the bore lying to the left and right of the mass with one another »

The body "1" is attached to the end of a handle 11 and has "attached" striking ^{heads 12, 1S 1} , with a screw plug 13 for the filling being arranged under the head 12.

. If there is an impact by means of the impact head 12, the movable one becomes Mass 5 from the impact exerted on the impact head hurled to the left. The part 9 of the bore fulfilling Liquid, which by the movable mass 5 under pressure. is set, can then through the hole 8 formed Exiting the transfer channel and into the rear part 10

flow through the bore. Due to the small cross-section of the Bore 8 and the viscosity of that generally formed by 01 Liquid 7 offers this flow a great deal ^ fidea'starg, / sg.daas 'c§ä? e ^ Shutdown' of the movable "mass" damped is generated and inertial forces, -which about the moment of the shock persist and a rebound of the Prevent tool to the right »

: At the moment of impact, in which the forces are very large, the liquid transmits the pressure of the movable Hasse almost entirely to the body of ¥ erkzeugs.Die _f movable, 'mass is not suddenly stopped; but can its forward movement as a result. the "flow of the liquid through the transfer channel will continue, and the impact effect will be prolonged until the end of the movement of the movable mass, thus preventing the tool from rebounding and achieving an effective accurate action /"

.The. Spring 6, which during the forward movement of the movable Mass 5 is compressed, leads the mass back to the rest position shown when the dynamic phenomena have essentially subsided "

In a Ausführungsabwandlung the springs 6 and 6 * which ^"1, only the movable .A composition 5 to bring a distant from the ends of the hole position in. May be replaced by other shaped elastic return Holt hurry. ', Z * B, elastic laminate ,. Elastic thread ο "dgl"

In the embodiment shown in * Pig.2, the Hammer out a body. two parts 1-5 and 15 *, which at a ring 16 carrying a stem 17 are soldered on. In this body a movable mass 18 is arranged, which

is "in a liquid 19 and is held pressed by a spring 20 £ 3 against the bottom" of the part 15 in _; >Forä> -ei3les regular hexagon inscribed in the cross-section of the bore.

- - Be careful when using the hammer head Ä "this like I'm an ordinary 'hammer," while with guarding' of the striker head B stops the movable mass 18 is dampened so that the flame does not rebound *

'Have in the two illustrated embodiments the striking heads of the tools have the shape of a hammer head, at However, in other designs, the striking heads of the tool forming the subject of the invention can also be a hoe, form a chisel or any other special tool * The fluid used is preferably oil or glycerine and does not necessarily need the hole in the body of the tool to be filled in completely, provided that they have a cushion under the moving mass in the working position of the Tool can form *

Claims (1)

S ο Ii ut ζ a η s ρ rüche 1 *.) Striking tool, characterized by a body _.with: ^ f INEM Scikfagla) | ii (3.2, 12 ^*:;? - uh, r ^B)? , a movable v; "Mass (5j 18) ', which is arranged in a bore of the body and is displaceable in this, elastic return devices (6,6 * -20), which hold the mass" in the rest position in an axial position in which it is of the front end of the adjacent to the impact head. Bore is removed, a liquid filling the front ■ part of the bore and a Ubejrfuhrungs- ■ channel; (8, -23) -with a small cross-section, through which the-liquid can emerge when the mass through the impact of the impact head on Obstacle is thrown forward and pressurizes the liquid, the design being such that the shutdown of the mass is dampened and inertia forces are generated which persist after the impact, in such a way that the tool prevents rebounding will. 2 ») memo according to claim 1, characterized in that that the weight of the moving mass (5,18) is greater than the weight of the body of the tool * - 3 ») Tool according to claim 1 with two striking heads arranged at two opposite ends of the body, characterized in that the elastic return devices (6.6 ^l ) are designed so that they hold the mass (5) in an axial position in the rest position hold, in which it is located approximately in the middle of the hole. 4 «) tool according to / claim 1 with two on two opposite Ends of the body arranged striking heads, thereby characterized in that the elastic return devices (20) are designed so that they hold the mass (18) in the rest position against a stop of the body, such that the stopping of the "aces" during the strike by means of a visual lag head (A). suddenly occurs while she's "at the stroke" by means of the ^ - other impact head (B) is dampened. 5.) Tool according to .spruch!, Characterized? that "the IToe guide channel (8.23) the front part of the bore ■ with a rear part of the same lying behind the i% sse contacts * 6 “) Tool according to claim 1 and 5? characterized by this- • shows that the "transfer channel (23) through a free Space between the mass (18) and the one receiving it Bore (21) is formed. 7, ») Tool according to claim 1, 5 and 6, characterized in that that the bore (21) has an "ere is cross-section, * _ _ while the mass has a cross-section in the form of a regular ^: - - ~ i ■> ■. -, - massive in '.: ien_Ereisquerschnitt' of the hole except for the hexagon inscribed in play. jhtsanwalt as gericilibl. best liter in general, Deputy.