DE7209505U - DRIVE LINKAGE - Google Patents

Description

Manfred Carlguth

6203 Hochhelm / Main
V7orthstr. 11

Drive linkage

The Antriebgestär.ge serves as a knife drive for an electric razor. This drive is characterized by the pendulum movement of the cutter head (1) outside of the razor housing around its cross-sectional center. The invention is explained in more detail with reference to the accompanying drawings.

Show it:

Fig.1. Structure and design of the electric razor Fig 2a-d Movement states of the drive linkage

during half a revolution of the disc (2)

Fig 3. Switch assembly of the long hair razor. Pos. 2-19 Shape and size of the individual parts

From the arrangement of the parts according to Fig. 1 it can be seen that the Electric motor (8) and the drive linkage with cutter head (1) on the Traverse (9) are attached or firmly mounted. The traverse (9) in turn is to be screwed together on one of the two Housing halves (7) attached. The electric motor (S) as the drive unit moves the cutter head (1) via the drive linkage. The housing opening for the moving lever (3) of the drive linkage is sealed over the rubber sleeve (13). As an opposite of the The cutting knife (i1) is used by the sieve (10 ') through which the whiskers protrude and be sheared off. The sieve head consists of sieve (10) and sieve housing (i2) is detachably connected to the shaver housing via lugs and release levers (H). The size and design of the razor body is designed to accommodate batteries. Via the lever (4) The long-hair knife is driven as part of the drive linkage (15). The ring (17), which is slidably seated on the lever (4), serves as the coupling between the long hair knife (15) and the lever (4). The ring (17) is moved over the fork piece of the switch (16). When the long hair knife (15) is switched on, the 7ing (i7), the has a ^^ QöflRiWä ibagiiwiende groove over the inside diameter

The nose of the lever (4) is pushed and at the same time the conical bolt of the ring (17) is guided into the recess of the long-haired knife (15). This creates a joint connection between lever, ring and long-haired knife. To move the ring (17) over the To ensure the nose of the lever (4), the ring (17) is always over a spring wire (18) before switching on the long hair knife (15) brought into the same starting position. Via the resilient lever of the Switch (i6) and the mold halves of the shaver housing as shown in Fig.1. the switch (i6) and ring (17) are in their on and off position locked.

The drive linkage according to Fig. 2a-d has three pivot points lying one behind the other on a straight line. The 1st pivot point is the center of the cross-section of the cutter head (1) and, in contrast to the other two pivot points, has no fixed bearing. The 2nd pivot point is the center of the disc (2) with both eccentric bolts and lies on the axis of the Ε motor. The lever (4) is mounted in the 3rd pivot point. The levers (3) and (4) are rigid structures and have both have a right-angled cross brace on which the rods (5) are articulated. Levers (3) and (4) are over the rods (5) and the eccentric bolts of the disc (2) are ■ connected to one another.

So that the cutter head (1) around its cross-section center Performs a pendulum movement, the following conditions must be met: 1.) The cross struts of levers (3) and (4) must be connected to the

Rods (5) form a parallelogram. 2.) In every position of the sequence of movements, the two nebulae (3) and (4) must run parallel to one another. This means that with different distances between the pivot points, the radi len Abs bands de ^ two sccentric bolts of:. 'Ohej.be (,') π around pivot point 2 must be chosen so that

read condition is met. If the distance between the three pivot points is the same, both have eccentric pins "equate radial distance to pivot point 2.

If the disk (2) is rotated with the two eccentric bolts, the Lan; ή groove the Iiebel (3): ind (4) moved around their pivot points. '' ei i'f'Wfi '^ un, ", i> -a lever (4) to move its fulcrum. Hi-Ii I1 <- <uior \ s hrpben both levers parallel to each other. A defi-Ii i rr -! ..- ·?; ^! .fiwef: mi ^ dr;: i üebelfiO) is only activated by the additional '' ■ !!!! ■ 'Mi;' i \ rr. m1 1erenden ThQ ftQftfft§X ^ P ⁿ f fä ¹ ' 5cheibe (2) reached,

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so that the lever (3) oscillates around a point. The washer (2) also serves to support the mounting of the Lever (3). Since the levers, rods and washer overlap, these are arranged in 5 levels as shown in Figure 1.

During the course of movement, the cutter head (1) shows a deviation from the center from # x to. The maximum value of this deviation lies between the zero position (c) and the respective largest angle of rotation (a) and (<l) of the cutter head according to Fig. 2a-d. The deviation öx increases the peder (6), which at the same time the cutter head (1) against the Sieve (10) presses.

Claims (5)

Protection /. Claims for drive linkage j I. Drive linkage for the meter: drive of an electric Ranierer, characterized in that zv / ei levers each designed as a cross over two articulated rods in such a way with one another are connected that the longer struts of both crosses are directed towards each other and the shorter struts of the crosses form a rectangle with the bars. (Fig.2c) I. Drive linkage according to claim 1, characterized in that both crosses are driven and guided jointly in two planes by a crankshaft (item 2) via open elongated holes in their longer struts. (Fig.1) 5. Drive linkage according to claim 1, characterized in that a cross is rotatably mounted (Pos.4) and over the rods the other cross drives, which is additionally guided by the crank drive and thus a forced one Pendulum motion executes. (Fig.2a-d) -. Drive linkage according to claim 1, characterized in that a knife head is connected to the oscillating cross, des.:.en knife edges in cross section on a semicircle unci whose semicircle center coincides with the point around the the cross swings. ). Drive rod according to Claim 1, characterized in that the rotatably mounted cross fixed in the pivot point; with a square is connected, on which a slidable: ring with a conical recess is attached (pos. 17 and 18), which is connected to an am The driving nose located in the shaft rim is pushed (-bb.3) and creates a connection between long hair and cross.