FI79203B - HAEVARMSMECHANIS FOER KANTELE. - Google Patents

Description

1 79203

KANTELE VTPUKONEEKO

The invention relates to a kantele lever mechanism comprising tongue pins to which the tongues of the kantele are attached at one end, lever shafts connected to the tongue pins and change levers 5 arranged at the other end of the lever shafts for changing the position of the lever shafts and adjusting the tension of the tongues.

The lever mechanism used to change the melody of the kantele is obtained by tightening or loosening the tongues when playing 10 the desired pitches. In prior art lever machine perforated bearings, the lever shafts are threaded through holes drilled in the bronze corners, whereby the stress points on the shaft remain between the bearing points and cause machining yields, which increase friction and inaccuracies in the operation of the shaft. In current devices, the playing characteristics and the accuracy of the tone changes suffer from this problem.

The object of the invention is to provide a kantele lever-20 system which has lower material inputs and frictions than in previous machines and which has better playing characteristics and accuracy of pitch changes than in known machines.

The object of the invention is achieved by a lever mechanism of a kantele, which is characterized by what is stated in the claims.

In the kantele lever mechanism according to the invention, tongue-30 pins are attached to the lever shaft 1, bearing pins are attached to the kantele body plate, recesses are formed in the lever shafts near the attachment point of the tongue pins and the lever shafts are pivotally mounted on the body plate recesses. The laaaa-35 coil pins are then located in the immediate vicinity of each tongue pin 2 79203 van. This achieves low material yields and frictions and provides good playing properties and accurate tone changes.

The invention will now be described in more detail with reference to the accompanying drawing, in which Figure 1 shows an embodiment of a kantele lever mechanism according to the invention seen from above, and Figure 2 shows a section A-A of Figure 1.

10

In the embodiment shown in the figures, the lever mechanism of the kantele comprises a body plate 1 which is fastened to the body of the kantele by screws 2. Attached to the body plate in this application are ball-headed bearing pins 3, on which the lever-15 shafts 4 swing in a recess machined into them. At the bearing pins, adjustable tongue pins 5 are attached to the threaded holes made in the lever shafts 4, to which the tongue is attached at one end. Underneath the lever arm of the lever shaft there is a body plate 7 of shift levers 20 fixed to the cover, to which is attached a column pin 8 extending through the end of the lever shaft. The shift lever 9 is attached to the column pin by means of a bearing pin 10. The relief spring 11, which relieves the upward force of the levers, is fixed at its upper end to the lever shaft.

25

The lever mechanism works as follows: with the kantele tuned to the basic tuning and when one of the notes is to be raised or lowered during playing, the shift lever is turned so that the desired change is achieved. 30 The shift lever has angular planes that control the movement of the lever arm either up or down. The movement of the fixed arm rotates the lever shaft, on which the tongue pins mounted tighten or loosen the tongue of the tongue, whereby the oscillation frequency of the tongue changes to the desired, pre-adjusted level.

Claims (2)

3 79203 A kantele lever mechanism comprising tongue pins (5) to which the tongue tongues (6) are attached at one end, lever shafts (4) connected to the tongue pins and shift levers 5 (9) at one end of the lever shafts for changing the position of the lever shafts and adjusting the tongue tension, from the fact that the tongue pins (5) are attached to the lever shafts (4), bearing pins are attached to the kantele body plate (1). (3), recesses are formed in the lever shafts (4) in the vicinity of the attachment point of the tongue pins, and the lever shafts are pivotally mounted ____ on the body plate (1) by means of bearing pins (3) placed in the recesses. Lever mechanism according to claim 1, characterized in that the lever mechanism comprises a gear lever body plate (7) attached to the cover, to which a pin (8) is attached, to which one end of the lever shaft (4) is attached and to which pin (8) a change lever (9) ) is secured by means of a bearing pin (10) and arranged to act on the position of the 20 lever shafts.