DE66162C - Device for mechanical movement of the wrist and fingers for instrumental purposes - Google Patents

Description

IMPERIAL

PATENT OFFICE

PATENT LETTERING

CLASS Sl: Musical instruments.

ARTHUR KÖNNEMANN in MORARIAN OSTRAU.

Patented in the German Empire from a. March 1892.

The device consists of the "finger over", the "tensioner" and the "wrist over".

In the accompanying drawing, FIGS. 1, 2 and 3 show the finger over in section, view and top view, furthermore FIGS. 4, 5 and 6 the tensioner and wrist strap, FIGS. 7 and 8 Finger tensioner details.

When using the finger transfer (Fig. 1, 2 and 3), the hand is attached to the support a by means of the hinge bridge b. The fingers are inserted into the rotatable cups d attached to the levers f , the thumbs into the cups d ^{l of} the correspondingly shaped thumb levers attached to both sides. All six angle levers f can be adjusted telescopically for each finger length by means of a conical screw and its nut t. Due to the sliding sleeves g attached to the rearward arms of the lever f , the lifting height of the cups is respectively. the fingers gradually adjustable up to the outermost span of the fingers.

The flywheel s is set in motion by any power motor and transmits the same through the belt r to the eccentrics e and then through the connecting rods h to the sliding sleeves g and the angle levers /, so that the fingers are practiced accordingly. Here, the movement transferred to the fingers by the eccentrics and angle levers is appropriate to the anatomical structure of the hand, not jerks or jerks, but steadily increasing and decreasing.

When using the tensioner (FIGS. 4 to 8), the fingers are inserted into the rings / attached to the vertical arms k. These arms, five in number, rest on five horizontal rails m, which are radially adjustable about the axis η in a plane and can be fixed by screws ρ. The rails can also be adjusted in the radial direction by means of the slide q. These devices can be used to pull the fingers apart and gradually bring them to ever greater tension.

To use the wrist joint (Fig. 4, 5 and 6), the button ν is pushed to the left, whereby by means of the claw clutch w, Fig. 5, the finger joint is switched off and the wrist joint switched on. The hand, which is fixed in the tensioner by the hinge bridge b ^{l, is moved up and} down in a similar way to the finger Ueber by lever f ¹ , sliding sleeve g \ rod h 'and eccentric e ^l , whereby the lifting height can be gradually increased by the sliding sleeve . The contact a ¹ of the hand is also adjusted at an angle of 90 ^0th The union of the wrist joint with the tensioner, shown in the drawing, is advantageous, whereby the hand can be practiced both in a normal position and in a stretched position. Here, too, is the movement

Claims (1)

the hand is steadily increasing and decreasing. All parts of the device except the table top are made of metal. Pa τ ε nt - A ν s ρ R ο c η: Device for mechanical movement of the wrist and fingers for instrumental purposes, characterized in that the fingers are held by means of telescopically displaceable angle levers (f) provided with adjustable sliding sleeves (g) and the connection with any motor is set up in such a way that it is at will either the fingers or the wrist, namely the former can also be moved in a pulled apart position by using horizontally displaceable rails (m). For this purpose 2 sheets of drawings.