DE1906140A1 - Swivel wheel - Google Patents

Description

The invention relates to a swivel wheel, the wheel shaft of which when shifting © iner of one or more such wheels The supported load should automatically be grounded at an angle to the direction of displacement

Such swivel wheels have the disadvantage that when changing the direction in which the load is moved »this load is initially shifted over an arc of a circle whose Radius depends on the distance between the wheel axis and the swivel axis < > As a result, the load is not only subject to an often disruptive, shaking movement, but it is moreover difficult to bring the load into a new, often precisely prescribed position.

The aim of the invention is ee, by means of an improved design of a swivel wheel that has previously adhered to it To eliminate defects

For this purpose there is a swivel wheel, the wheel axis of which is mounted in a fork, which in turn rotates around a parallel to the wheel axis Lying axis in a fork that can be rotated around a pivot axis directed perpendicular to the wheel shaft is stored, characterized according to the invention, that the wheel axis is limited and symmetrical to the center line

909840/0974

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the pivot axis around the center line of the center line the pivot axis intersecting the pivot axis between the wheel fork and the pivot fork is arranged to be pivotable. Included can be an organ to limit the oscillatory movement of the The impeller fork consists of a leaf spring or a similar elastic damper in relation to the swivel fork.

To clarify the invention, with reference to the The drawing shows an exemplary embodiment of the swivel wheel.

Fig. 1 is a front view of the swivel wheel $ Pig. 2 shows a section along line H-II in TIg. 1.

The swivel wheel is provided with a fork 2 which can be rotated about a swivel axis 1 and in which a fork 4 is mounted that can swing about the center line of the coaxial pins 3 bears on the underside of a leaf spring 7 »which as a resilient stop for the web of the fork 4 for limiting the swinging movement of the wheel fork 4 with respect to the pivot fork 2 is effective ₀

SiOH is in the shown in Fig * 2 embodiment, the axis 5 of the Laufrade "right of the center line of the pivot axis 1. This situation is favorable for the rotor 6, so that this * r under self-adjustment la $ 9A direetion to the left as SIG. 2 to be rolled up kamu

When rolling in any direction to the right in 71g * 2, the impeller 6 should have forks 2 and 4 be pivoted initially over an angle of more than 9o ° around the center line of the pivot axis 1 in order to be converted into a to be placed in a favorable position for rolling · By the small distance between the center line of the Hadaohae

909840/0974

and the pivot axis 1, i.e. due to the short length of the pivot arm _J , however, the effort required to bring the wheel axis 5 to the other side of the center line of the pivot axis 1 by moving the Jiaufradgabel 4 around the pin 3 of the Sohwenkgabel 2 can vibrate, be less than the effort with which this is to be achieved by allowing the impeller to pivot around the center line of the pivot axis 1 with the forks. In this case, an even further reduction of the already low usually on a change of direction of displacement transverse movement is achieved by the swing gear of the carried load, thereby promoting to a large extent that the load is rapidly and accurately to a prescribed location ₀

Characterized in that one for the limitation of the oscillating movement of the impeller fork 4 with respect to the pivot fork 2 a leaf spring arranged between the webs of these forks or a corresponding damper is used, the distance between the center line of the wheel axle 5 and the pivot axis becomes 1, that is, the length of the swivel arm is kept at the most favorable value depending on the weight of the load «

Although the wheel axle 5 is preferably arranged under the pin 3, it can also be above it. In both cases it is achieved that when a load carried by one or more swivel wheels according to the invention is shifted, this load comfortably and precisely in a prescribed position without disturbing transverse movement can be brought _o

Claims t

909840/0974

Claims (2)

Claims x 11.) Schwenlcrad with an impeller _f which is mounted in a fork which is eohwingbaren about an axis lying parallel to the wheel axis in a fork rotatable about a pivot axis perpendicular to the wheel axis iet _f characterized in that the wheel axis (5) is limited and symmetrical to the center line of the pivot axis (1) around the center line of the pivot axis (3, 3) intersecting the center line of the pivot axis »'roof of the impeller fork (4) and the pivot fork (2) is arranged so that it can swing" 2. swivel wheel according to claim 1 * characterized in that an organ zm: limitation of the oscillating movement of the impeller fork (4) with respect to the swivel fork (2) aua a Blatt.'ader (7) or a similar elastic damper consists * 909840/097 /;