DE8117440U1 - Switch actuator - Google Patents

Description

The innovation relates to an actuator for a Electrical switch arranged in the handle of a power tool with a switch button penetrating the outer contour of the handle. The actuator kit turns the power tool on and off.

In the known actuating devices, the switch button appears of the switch arranged in the handle more or less deeply into the handle when actuated. This is the operator of the power tool forced to concentrate on the front operating surface of the switch button. This often results in an unfavorable one Handling of the power tool, since it must be held, guided and switched with the operating hand at the same time. This includes the hand the handle so that the palm of the hand on one and the thumb on the opposite lateral outer surface of the handle comes to rest. As a rule, the index or middle finger is then used to operate the switch button.

In the case of such power tools where the user with the on |

W must be translated tool pressure on the processing point exercise it 1st advantageous if the force flux hand - machine tools - in • iner line runs.

With ergonomically well thought-out power tools, this handling can can be made much easier by appropriate design of the grip areas.

So z. B. for power tools with pistol grip in the Handle adjoining motor housing recessed grips for receiving the index finger and thumb part, so that the between these fingers

The lying hand area applies the working pressure and that in the troughs lying fingers take the lead, while the little finger takes the lead

':'; ■ the front operating surface of the switch button is operated.

This advantageous handling can, however, depending on the location of this pre-

I ren switch button surface lead to difficulties, so that it happens

t men that can be followed up during the work process and the

I hand to switch off the power tool in your working position

■ must leave.

^; The innovation is based on the task of creating an ergonomically favorable

i: to create actuating device in which the hand when entering and

!.; Switching off does not need to leave their working position and the

I user can concentrate fully on the work process.

I This task is solved in that with the switch button an

I additional actuator is releasably connected, which both the

I embraces the switch button and the handle in a U-shape.

K In an advantageous manner, the outer contour of the lateral shear

Disgusting of this additional actuating element regardless of the respective

In the switch position, seamlessly into the lateral outer contour of the hand

I attacked.

With this arrangement, the user no longer has to look to the front Operating surface of the switch button, which plunges into the interior of the handle during actuation and whose relative position is constantly changing changed, concentrate, as the operation can be done from the front, at an angle in front, as well as from the side.

The lateral actuation can still be done across the direction of actuation lying grip strips or by structuring the outer surface of the additional actuating element can be improved.

To accommodate further actuation parts, it is advantageous to use the additional Actuating element to be provided with corresponding recesses in its area connecting the two lateral legs. A Such an actuating part can, for example, be a switching lever acting on a changeover switch for reversing the direction of rotation of the electric motor his or an adjusting wheel influencing the switching path in electronically controlled switches for changing the speed.

To protect the setting wheel against unintentional adjustment, it is useful to place the additional actuating element in the two lateral Leg connecting area on its outside facing away from the handle with a longitudinal to the handle direction to provide a raised bridge. If the width of this web is kept smaller than the diameter of the recess required for the setting wheel, so the setting wheel can still be operated sufficiently despite this protective measure.

Another protection against external damage to the setting wheel can still be can be achieved in that the recess for the adjusting wheel as a blind hole is executed and limited in depth so that the raised outer surface of the web is not breached.

In the case of electronic switches with path-dependent control, it is advantageous to to be able to make a setting that can be reproduced at any time. So it is B. usual, corresponding markings on the adjusting wheel to attach.

The present innovation is the lateral outer contour of the handle provided with markings in the area of movement of the lateral legs of the additional actuating element, which are reproducible Position of the additional actuating element can be assigned. This design allows a quick and easily manageable Setting.

If the additional actuating element is made of translucent material produced, it can be flooded with light of different colors. This makes it possible to have a clearer overview of the current operating status of the engine than to be presented with the well-known LED displays.

An embodiment of the innovation shown in the drawings relates to a motor housing with a pistol-shaped switch handle and is explained in more detail in the following description. It shows

Figure 1 is a perspective view of a power tool,

Figure 2 shows a section along the line II - II in Figure 1,

FIG. 3 shows a variant of FIG. 1 with additional actuating parts,

Figure A shows a section along the line IV - IV in Figure 3,

FIG. 5 a variant of FIG. 2,

Figure 6 shows a variant of Figure 3, partially shown,

FIG. 7 shows the removed actuating element in perspective Opinion.

The motor housing 1 shown in Figure 1 is with a pistol-shaped Handle 5 provided, which is embraced by the actuating element 3 according to the invention in a U-shape. This actuator 3 is in releasably connected to the example shown by means of a screw 2 with a switch button not shown here.

The ergonomically advantageous handling can be seen from the illustration, which the actuator allows.

Figure 2 shows a section along the line II - II in Figure 1 and leaves The seamless transition between the side legs A and 6 is particularly good of the actuating element 3 in the lateral outer contour of the handle 5. The seamless transition ensures that the When switched on, no skin parts of the operating hand can get into the guideway. In this sectional view, the switch 7 is with the switch button 8 to recognize which in the direction of the actuating element 3 penetrates the outer contour of the handle 5. The actuator 3 is with the switch button 8 releasably connected via a screw 2. |

Figure 3 shows a variant with recesses 9 and 10 for receiving wide |

rer actuating parts 12 and 13. The recess 10 serves to accommodate a |

nes adjusting wheel 13, which is used to set the shift travel and thus to |

Adjustment of the engine speed is provided. Through the recess 9 protrudes

jo a shift lever 12, with which a switch (not shown)

; ■■ ter can be operated to change the direction of rotation of the motor. One on

The raised web 14 arranged on the actuating element 3 protects this

Adjusting wheel 13 against unintentional adjustment. The height of the web 14 corresponds approximately to the protrusion of the protruding from the actuating element 3 Adjusting wheel 13; the width of the web 14 is smaller than the diameter of the adjusting wheel 13, whereby a lateral actuation of the adjusting wheel 13 is guaranteed.

I In the range of motion of the side leg 4 of the actuating element

Ϊ the handle 5 is provided with markings 15, which a position

I can be assigned to the rear leg edge 11. The assignment

I follows via the setting wheel 13.

I The section shown in Figure 4 along the line IV - IV in Figure 3 is

I at the level of the adjusting wheel 13 and has the same detachable fastening

I supply type, as shown in FIG. The circular shape

I saving 10 is designed continuously in this embodiment.

5? In the variant of FIG. 2 shown in FIG. 5, the loading

ji fastening of the actuating element 3 with the switch button 8 by means of a

In a snap connection, which is activated by a switch button 8

jj dipping locking element 17 connected to actuating element 3

i \ is placed. For better lateral operability, the leg 6

I in the upper half of the cut, for example, with a grip strip 16

f see, which extends over the entire height of the actuating element 3

[; stretches. Instead of this grip strip 16, it is also conceivable to use the surface

iv of the actuating element 3 to be provided with a structure 18, as shown in FIG

';, the lower half of the section on the leg 4 is shown, for example.

- ίο -

In Figure 6, the circular recess 10 is designed as a blind hole in such a way that that the increased outer surface of the web 19 is not interrupted.

The illustrated in Figure 7 removed actuator 3 leaves the recognize simple shell-shaped structure. While the inside in is essentially adapted to the shape of the handle, the outer shape can be ergonomic Should be designed from a point of view. By simply placing it on the switch button, this can be compared to conventional arrangements significantly improved actuation can be achieved. In this embodiment, the actuating element is provided with a base 22, which dips into corresponding recesses in the handle. This ensures that the actuating device is disengaged State is closed on all sides. In the perspective view, the recesses 9 and 10 are particularly good for the The switching lever and the adjusting wheel can be seen. The hole 20 is used to receive the fastening screw, the pin 21 to fix the position.

The innovation offers the advantage that with little effort an ergonomic Advantageous actuating device is created in which essentially commercially available switches can be used. To fix the actuating element 3 on the switch button 8 there are only one or two bores for the screw or snap connection to attach.

The new actuating device is particularly suitable for installation in power tools with pistol, medium or spade handles. However, you can also easily z. B. for angle grinders with rod-shaped Use the handle and the swiveling switch button.

For this purpose 3 sheets of drawings

Claims (8)

(jKy actuation device for an electrical switch arranged in the handle of a power tool with a switch button penetrating the outer contour of the handle, characterized in that an additional actuation element (3) is detachably connected to the switch button (8), which both the switch button (8) and the Handle (5) embraced in a U-shape. 2. Actuating device according to claim 1, characterized in that the outer contour of the side legs (4, 6) of the additional actuating element (3) merges seamlessly into the lateral outer contour of the handle (5) regardless of the respective switch position. 3. Actuating device according to claims 1 and 2, characterized in that that the additional actuating element (3) has recesses in its area connecting the two side legs (4, 6) (9, 10) is provided for receiving further actuating parts (12, 13). A. Actuating device according to claim 3, characterized in that one of the recesses has a circular shape and is provided to accommodate an adjusting wheel (13) which influences the shift travel. 5. Actuating device according to claim A, characterized in that the area connecting the two lateral legs (A, 6)
its outside facing away from the handle (5) is provided with an elevated web MA) lying longitudinally to the handle direction, the width of which is smaller than the diameter of the circular recess (10). 6. Actuating device according to claims A and 5, characterized in that that the circular recess (10) is open on its inside facing the handle (5) and so limited in depth is that the raised outer surface of the web (19) is not broken. 7. Actuating device according to claims 1 to 6, characterized in that the lateral legs (A, 6) of the additional actuating element (3) are arranged transversely to the actuating direction
Handle strips (16) are provided. 8. Actuating device according to claims 1 to 7, characterized in that that the additional actuating element (3) consists of translucent material.