Sweeping machine

• US 3,918,118 A
• Filed: 11/12/1974
• Issued: 11/11/1975
• Est. Priority Date: 11/17/1973
• Status: Expired due to Term

• Current Assignee: Heinz Schalmath, Hugo Vom Berg
• Original Assignee: Heinz Schalmath, Hugo Vom Berg
• Inventors: VOM Berg, Hugo, Schalmath, Heinz
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US05/523,041
• Time in Patent Office: 364 Days
• Field of Search: 15/83,84,85,86,340
• US Class Current: 15/83
• CPC Class Codes: E01H 1/047 Collecting apparatus characterised by the hopper or by means for unloading the hopper
• CPC Class Codes: E01H 1/0854 Apparatus in which the mechanically dislodged dirt is partially sucked-off, e.g. dislodging- sweeping apparatus with dirt collector in brush housing or dirt container mechanical dislodging machines with independent suction nozzles E01H1/0827; combined with blowing and suction E01H1/0872

Abstract

A downwardly open brush housing is mounted on a wheeled chassis. A cylindrical brush is rotatably mounted in the brush housing. A dirt container is detachably connected to the brush housing. Frame section members extend along the chassis on both sides thereof. carriers are slidably guided in said frame section members in the longitudinal direction thereof. The dirt container is pivotally connected by bearing means to said carriers.

Claims

1. A sweeping machine comprising a wheeled chassis, a downwardly open brush housing mounted on the chassis, a cylindrical brush rotatably mounted in the brush housing, a dirt container, which is detachably connected to the brush housing, frame section members extending along the chassis on both sides thereof, carriers which are slidably guided in said frame section members in the longitudinal direction thereof, and bearing means pivotally connecting said dirt container to said carriers.

2. A sweeping machine as set forth in claim 1, in which said frame section members at least at one end are inwardly open and comprise vertical wall portions and transversely extending top and bottom roller tracks, the carriers consist of slidable rails, each of which is provided with at least two rollers, one of said rollers associated with each slidable rail is an end roller disposed at the inner end of the slidable rail and protrudes above said rail, and said rollers associated with each slidable rail except for said end roller are spaced from said end roller and protrude below said slidable rail.

3. A sweeping machine as set forth in claim 2, in which each of said frame section members is an inwardly open channel.

4. A sweeping machine as claimed in claim 2, in which each roller track for a downwardly protruding roller is provided with a detent recess arranged to receive said roller when the slidable rail is in an extended position.

5. A sweeping machine as claimed in claim 2, in which the outer ends of the slidable rails are rigidly connected by a cross strut, which forms a handle for a carrying structure comprising both slidable rails, and said cross strut is located to form a stop which is engageable by the pivoted dirt container in emptying position.

6. A sweeping machine as claimed in claim 1, in which the bearing means comprise trunnions carried by said dust container on opposite sides thereof and open-topped bearing recesses provided in the carriers, said trunnions being rotatably mounted in and upwardly removable from said bearing recesses.

7. A sweeping machine as set forth in claim 1, in which said chassis comprises a contact edge, which conforms to an edge defining an opening of the dirt container and is provided with a continuous peripheral seal, said edge of said dirt container is adapted to be forced against said seal, lifting means are provided at the outer ends of the carriers and are supported at their other end in the chassis and in a lifting position lift the outer ends of the carriers together with the bearing means for the dirt container and force said edge of the container against said contact edge.

8. A sweeping machine as set forth in claim 7, in which said lifting means comprise eccentric cams, levers for actuating said cams, and pivot pins pivotally connecting said cams to the outer end portions of the carriers, said cams cooperating with outer end portions of the lower roller tracks and being pivotally movable below the plane which is defined by the rollers protruding below the carriers.

9. A sweeping machine as set forth in claim 8, in which the cams have a peripheral portion which is engageable with the lower roller tracks for the carriers when the latter are to be lifted and is relieved at such an angle that the contacting surface portions of the cams and roller tracks are in self-locking engagement.

10. A sweeping machine as set forth in claim 8, in which the peripheral surfaces of the cams are so shaped relative to tHeir axes of rotation that imaginary vertical lines extending through the axes of rotation of the cams onto the roller tracks supporting said cams precede in the direction of the retracting movement of the carriers the point of support of the cams moved to lift the carrier, and the cams have at their periphery a radially relieved portion adjacent to the point of support.

11. A sweeping machine as set forth in claim 8, in which cams mounted on both carriers are interconnected by a cross strut, which forms a handle for moving the cams and for pulling the carriers connected by said cross strut.