DE957796C - Device for the attachment of three-point attachment devices to the swing frame or the attachment rail of a tractor - Google Patents

Description

ISSUED FEBRUARY 7, 1957

P 14454 III 1.45 a

Addendum to patent 940

Around three-point attachments with the anti-vibration bar or to articulate the mounting rail of a tractor with the necessary movement options, are, according to the main patent, those at the lower two articulation points of the attachment attacking, the connection with the mounting rail or with the swing frame producing two Handlebars with reference to the perpendicular plane in their angular position to the device can be fixed and adjusted and in freely movable on the horizontal plane, stored.

The invention is intended to provide a further simplification the subject of the main patent can be achieved in that the two lower pivot points attacking two links rigidly with the swing frame or its mounting rail connected, and / or a rigid frame in itself, form, on which the vertical pivot axis of the device supporting cross rail to horizontal Pin pivoted and connected to the third articulation point of the device with variable distance is.

Due to the rigid connection of the two links with the swing frame or with its drawbar or by connecting the two links to form a rigid frame, that the swing frame pivot point, which is conveniently located far forward in tractors with a swing frame that can be raised and lowered, is used as a linkage or pivot point.

Pull point for the device is retained. By doing According to the invention provided rigid frame can adjust the depth, width and inclination be accommodated in a simple manner, so that the new device for tractors with swing frame or poor represents a substantial simplification of the device according to the main patent.

Various possible embodiments of the invention are shown in the drawing in exemplary embodiments shown in perspective. Here are reference numbers, the parts of the device according to Main patent have been used in the same way.

The handlebars are in the embodiment according to Fig. Ι 9 rigidly at 10, but releasably, connected to the vertically swingably hinged by an unillustrated lifting device to the tractor swing frame io _a. They form a rigid frame, in which the cross rail is mounted by means of _a pin 8 of the horizontal 3 to the frame part 5, the struts 12 and the spacing serving cross brace 15 °. The cross rail 3 _a and the frame part 5 take the leg ι and 2, for example, a two-share plow

As is the case with the device according to the main patent, in which the legs 1, 2 are attached to a U-rail and connected to an upstanding link 4 _{forming the articulation point 4 a} 'to form a fixed frame, which by means of the U-rail 3 the cross rail 3 _a engages and is freely rotatably connected to it by means of the vertical pin 6. The point 4 _a is connected to the frame part 5 in the elongated hole 5 _e in the longitudinal direction by means of an articulated adjusting device 16 known per se.

With such a design of the device according to the main patent, the depth of the working devices can be regulated by actuating the actuating device 16 accordingly. The cross bar 3 _a rotates around the pin 8 during the setting. The legs 1 and 2 assume the required pivot position in the horizontal plane to the swing frame io _fl in that they freely adjust around the pin 6. The measure

* 5 Freedom of movement can be limited by adjusting screws 7. The width adjustment is achieved in that the pivot pin 6 is passed into corresponding holes 17 of the U-rail 3 and the cross-rail 3 _a , with an elongated hole 4 $ ensuring that the upright member 4 is opposite to the pivot point 4 _a transversely move, can. The inclination adjustment of the implement takes place in that one of the pins 8 is connected to the frame 6, 9, 12 by adjusting devices 18 so that it can be adjusted in height Pin 8 and a spherical bearing for the other, pin 8. The elongated hole 4 _& provides the necessary mobility for the upstanding link 4.

In the embodiment of Fig. 2 'the frame 9, 5, 12 and 15 is formed in the same way; however, this exemplary embodiment shows that the frame 5 with the struts 12 at the top can be brought together to a point which is moved forward and which only accommodates the adjusting device 16. The adjustment device is here a perforated rail, through whose holes _{i6 a the} pivot axis 6, which is continuous in this case, is inserted at a corresponding distance from the depth adjustment. Here, too, an adjustment of the inclination is provided as in the exemplary embodiment according to Fig. 1.

In the embodiment according to Fig. 3, the two parts 9 connected by cross struts 15 to the parts 5 are flexurally rigid supports which are brought together to the rear to form a pivot point which is used to accommodate the adjustment device 16 for the depth adjustment of the implement. The upstanding member 4 is guided forward and in turn has the. Articulation point 4 _ß for the adjustment device 16 on. The inclination adjustment can also in this embodiment according to Fig. 1 and. 2 may be provided.

In the embodiment according to Fig. 4, the adjusting device 16 is on. the cross brace 15, which the two parts 9 to a solid, frame, connects, articulated and to the articulation point 4 "of the upright Link 4 out / width and inclination adjustment can here as with the preceding Embodiments are provided.

Another possibility is shown in Fig. 5. Here, the leg 1 with the upright link 4 connected to it is _{mounted in a ball joint point 6 'on the cross rail} 3a. From _a Anlenkpunkt4 a respective actuating device 16 leads to the portions 9, which in turn by means of cross struts. 15 are connected to a solid frame. By setting the adjusting devices 16 on one or both sides, both the depth and the inclination of the implement can be adjusted.

Fig. 6 shows that in a modification of the embodiments according to Figs. 3 and 4, the upright member 4 forming the third point of the device can also be omitted without impairing the extensive adjustability of the device. The frame 9, .5, 12 is designed similarly to the embodiment according to Fig. 3 and the adjustment device is switched on between the rearward pivot point of the frame 5 and the point 4 _a directly on the leg 1. Width and depth adjustment correspond to the previous embodiments.

Claims (4)

Patent claims: i. Device for the cultivation of. Three-point attachments to the swing frame or the mounting rail of a tractor according to patent 940945, characterized in that the at the lower two articulation points (8) engaging two links (9) with the swing frame (io ") or its mounting rail are rigidly connected and / or rigid in itself Form frame on 'which the vertical pivot axis (6) of the device (1, 2) supporting Cross rail (3 _α ) mounted pivotably about horizontal pins (8) and to which the third articulation point (4 _a ) of the device (i, 2) is connected with variable distance. 2. Device according to claim i, characterized in that that one of the two pins (8) adjustable in height with the frame (5, 9, 12, 15) connected is. 3. Apparatus according to claim 1 or 2, characterized in that the device (1) at a point (6 ') on the transverse _{rail (3 fl} ) is mounted spherically and the third articulation point (4 _a ) by means of two adjusting devices (16) the frame (9, 15) is adjustably connected. 4. Apparatus according to claim 1 or 2, characterized in that with the elimination of the upright member (4) the adjusting device (16) directly between the frame. (S, 9) and the leg (1) is switched on. 1 sheet of drawings Θ 6Ο9578 / + 1 7.56 (609 782 1.57)