SE454962B - PULSE SWITCH FOR SCREWING COMPONENTS - Google Patents

Description

Additional features and characteristics of the invention appear from the subclaims.

Description of the drawings The invention will be described in more detail below with reference to an embodiment shown in the accompanying drawings.

Figure 1 shows a pulse rotator according to the invention in a side view partly in section.

Figure 2 is a view on a larger scale of a holder part included in the impulse turner according to the invention.

Figure 3 shows a plan view of the percussion arm. and Figure L shows on a larger scale and partly in section a base part included in the impulse rotor according to Figure 1.

Description of exemplary embodiments is shown and partly in cross section an impulse which comprises a holder part 2.

In figure 1 in side view turner 1 according to the invention, which are connected in this way. a percussion arm 3 and a base part 4, that the holder part and the base part together form an elongate shaft around which the percussion arm is rotatable. which closer to a holder part 2 in turn comprises a cylinder 5, is shown on a larger scale in figure 2 and which is provided with annular groove S. At one end the cylinder is terminated with a concentric pin 7, which is provided with a thread. In the area between cylinder and pin, a preferably two-armed wing B is arranged in a rotationally fixed manner.

The holder part further comprises a tube liner 9 applied to the cylinder, which, as shown in figure 1, projects outside the cylinder and in this case on its outside is provided with a grip-friendly material 10. e.g. rubber or plastic. This outer tubular liner-shaped holder part 9 is attached to the cylinder so that it is rotatable relative to the cylinder. but axially fixed relative to it, in that the material in the tube liner is pressed in at SEK 454,962! the groove 6 in the cylinder 5.

The striking arm 3 is shown in Figure 3 on a larger scale and in a view from above, and as can be seen from this it consists of an elongated arm, which is provided in the middle with a hole 12 and carries a weight 13 at each end. The design is, as shown in figure 3, such that abutment takes place against the short side of the arm material. which in turn eliminates any friction in the arm at the moment of impact.

Figure 4 shows in side view and partly in section the base part 4. which consists of a rod. which at its lower end is provided with a socket 14 for an arbitrary bolt sleeve or the like, and at its upper side has a concentrically placed. threaded bottom hole 15, and a radially projecting wing 18 fixedly connected to the rod, the design of the holder part provides a secure connection base part By being able to be provided between the holders and without therefore losing mobility and rotational ability in the handle.

After manufacture, the components can thus be delivered with cylinder and outer pipe lining connected by and then the inner part of the holder part an indentation 11 which engages in the groove 6 in the cylinder. assembly is to take place using the Wing 8 fixed to the cylinder, as a knob. This wing further serves as a paring guard during use as a function of the impulse turner, to ensure that the user's hands do not slip from the handle and into the stroke area of the percussion arm.

Due to the design of the abutment for the percussion arm shown in the figures as a wing 16 extending in one direction, in contrast to previously multi-armed abutments, a lower weight of the tool is also gained, although the design does not entail any oblique loads of the base part. In addition, it is gained that the impact against this single impact is more distinct than with two or more impact offenses. because you avoid the games. swings and compensating forces. which are unavoidable in the case of simultaneous impact against several heels. The impact thus becomes more instantaneous than what can be achieved with previous resistance designs and thus one gains with the impulse torque according to the invention that the losses in transmitted power become very small. 454 962 Ä The invention is not limited to the embodiment shown in the figures and in connection therewith, with variants and modifications being possible within the scope of the appended claims. f »

Claims (3)

05 20 25 30 35 PATENT REQUIREMENTS Impulse knob for loosening and / or tightening of a component included in a screw connection and comprising a holder part (2) (15) is arranged between the holder part and the base part and arranged so that during type as (4) with a (3) and a cooperating base part socket for a pin or sleeve and where a percussion arm rotation about the longitudinal axis of the impulse rotator applies shock-shaped torsional forces to abutments radially emanating from the impulse rotator (16). The holder consists of a cylinder (5) with an annular groove (B) and a concentric one. threaded pin (7) starting from one end of the cylinder. arranged to be screwed into a corresponding hole (14) and by an external tube liner (9) in the base part, to be passed over the cylinder and to be anchored (11) in the cylinder in such a way that the tube liner is rotatably attached to it by a pressing the wall material of the pipe into the groove on the cylinder (5) but axially locked to it. Impulse knob according to claim 1, characterized in that the cylinder of the holder part is provided with a double-sided radial wing (B) rotatably arranged at the transition between (5) the holder part (2) to enable screwing of (4). ) trajectory. cylinder and pin (7) in the base part and protection of the user's hands from the impact arm (3) Impulse knob according to one of the preceding claims. This means that the impact arm (3) is arranged to transmit torsional force to it (2) (4) with the shaft rotatably connected and (16) of the holder part and the base part formed the shaft by abutment against a single one. from this radially extending wing with an outer flange part bent at an angle, on the other hand.