DE1280115B - Closure for the drum opening of a tilting drum mixer - Google Patents

Description

Closure for the drum opening of a tilting drum mixer. The invention refers to a closure for the drum opening of a tilting drum mixer, whose mixing drum extends to its drum opening provided with a beaded edge conically tapered towards each other and with the drum opening closed around the two to each other vertical axes of rotation of a tilting drum mixer is rotatable at the same time.

In a known embodiment of this type, a sieve is in a frame stretched, which is as large as the beaded edge of the mixing drum opening, which is of the Sieve is closed for the purpose of sifting out with the aid of the mixer. To the Joining the sieve frame with the flanged edge of the mixing drum opening is used a split ring with a half-shell-shaped, sieve frame and beaded drum rim jointly overlapping profile cross-section, with the two ring ends at their partial joint can be clamped together by a hand toggle.

The object of the invention is to provide a closure that is in one piece is for easier handling, cheap is to use a tilting drum mixer that is already cheap in itself to open up further fields of application, and is stable enough to accommodate all Mixing around the two mutually perpendicular mixer axes of rotation occurring loads to be able to record.

According to the invention, this is achieved in that the closure is used as a cover is formed and one centering on the flanged edge of the mixing drum Edge and at least two hooks resting against the conical inner wall of the drum, one of which can be rotated and clamped by means of an outwardly protruding handle is.

In the device according to the invention, all are on the cover itself Locking organs united. These are easy and cheap. Because of their interaction with the conical drum inner wall on the one hand and centering support of the cover On the other hand, on the flanged edge of the drum opening, they produce a robust and reliable bolt lock. The placement of the hooks on the conical inner wall of the drum is without any disruptive influence on the mixing process inside the drum.

The handling is so easy that at the relatively low speed of rotation the lid is in a desk-like inclined inclined position during rotation the mixing drum can be easily opened and removed as well as put on and closed, so that the mixing drum is not stopped and the motor is not stopped for each new one Batch needs to be restarted. According to the invention, this can still be achieved thereby are further facilitated that the range of rotation of the handle in the opening direction is limited.

By rotating the mixing drum with the drum opening closed by the lid according to the invention around the two mutually perpendicular axes of the mixing machine at the same time, in addition to building materials, different soils can be mixed with each other, as the gardener needs for flowers, plants, etc. in different mixtures and their homogeneity otherwise very much difficult to achieve. Another field of application is the dressing of seeds, which the mixer enables when the drum opening is closed by the lid. For the farmer, the area of application can be expanded by different lid designs by the lid according to the invention liquid inlet and outlet openings, for. B. in the middle of the lid for a tube to be inserted and at the periphery for the drain. This makes the mixer suitable for washing potatoes, beets and the like.

Two embodiments of the invention are shown in the drawing. It shows F i g. 1 the mixing drum in its holder, F i g. 2 and 3 a cover design in plan view and side section, FIG. 4 and 5 a different cover design.

The mixing drum 1 is rotatably held in a bracket 3 by means of a pin 2, which is pivotable on both sides with pivot pins 4 and 5 in bearing blocks 6 of its mostly mobile frame about a horizontal axis. The pivot pin 4 is hollow; The rotating shaft 7 is passed through it, which - via pinion 8 and internal gear 9 - is driven by a hand crank 10 or by an electric or internal combustion engine and rotates the ring gear 12 attached to the drum circumference via a pinion 11. A hand crank 13 is attached to the pivot pin 5 , by means of which the mixing drum 1 can be pivoted in addition to its rotational movement, for which a motor drive can also be used.

The cover 14 is round in accordance with the drum opening up to which the drum inner wall tapers conically at 15. It has a rim 16 which is centered on the bead 17 of the Mischtrominel, as well as two diametrically opposed flat hooks 18 and 19. Of these, the hook 18 rigidly, and the hook 19 is rotatably mounted on an outwardly projecting handle 20 to the bolt 21st When it is turned into the closed position, it is self-locking.

The lid 22 according to FIG. 4, 5 can be closed in the same way. It has a central opening 23 for inserting a hose and drain openings 24 on the periphery.

Claims (3)

1. A closure for the drum opening of a tilting drum mixer whose mixing drum tapers conically towards its provided with a flanged drum opening and at the same time rotatable with a closed drum opening to the two mutually perpendicular axes of rotation of a tilting drum mixer, d a d u rch in that the closure as Lid (14) is formed and has an edge (16) centering on the flanged edge (17) of the mixing drum with at least two hooks (18, 19) resting on the conical drum inner wall, one of which (19) by means of an outwardly protruding Handle (20) can be rotated and clamped. 2. Closure according to claim 1, characterized in that the range of rotation of the handle (20) is limited in the opening direction. 3. A closure according to claim 1, characterized in that the cover (14) has a central opening (23 ) in the middle for a hose to be inserted, and drainage openings (24) on the periphery. Documents considered: German Auslegeschrift No. 1 164 908; German utility model No. 1835 358, 1880 738; Austrian Patent No. 143 745; U.S. Patent Nos. 2,496,077, 3,144,242.