DD292280A5 - DEVICE FOR LOOSENING ANATOMY POLLUTION ON ROADS - Google Patents

Abstract

The device according to the invention can be mounted on the left- or right-hand side, in particular on sweepers in front of the brooms, and is suitable for removing encrusted, stuck or frozen road dirt. By a simple, material-saving design, the adaptation to Straszenunbenheiten and curb with only a single-acting cylinder in conjunction with a thrust rotary joint, a length-constant, flexible member and a spring element gewaehrleistet. In the event of a pressure medium failure, the scraping head automatically moves into the transport position, so that no special locking is necessary. Fig. 1 {sweepers; Straszenkehrmaschine; ANBAUGERAET; Schmutzloesegeraet; Straszenverschmutzungen; Schabegeraet}

Description

For this 3 pages drawings

Field of application of the invention

The invention relates to a device for street sweeping machines, in which left and / or right side of the vehicle frame and in front of the rotating broom a scraping tool for cleaning the gutter of solid, encrusted dirt is arranged.

Characteristic of the known state of the art

Such accessories for street sweepers are known. Such a device is described in DE-PS 2746070. Thereafter, a fixedly connected to the vehicle frame carrier recording - or bearing points for a scraper-carrying linkage and for a pressurized medium, double-acting cylinder, which in turn acts on the linkage. Due to the vertical and horizontal offset of the bearing and engagement points for the linkage and the cylinder both inward and outward swinging and the pressing and lifting can be achieved, whereby, however, the formation of bearings with 3 degrees of freedom (ball joints) is required, which is the cost elevated. The adaptation to the road surface and the lateral curb is kinematically guaranteed, but to realize cW Ausschwenk- or lifting movement is a double-acting cylinder with the necessary control elements for the pressure medium necessary, which acts increasing the cost.

For the secure fixing of the scraper element during transport, an additional locking device is required, which prevents inadvertent lowering of the scraper element in case of failure of the pressure medium supply or a control failure. Another disadvantage of known scratching devices is that they are applicable only for one side of the vehicle. For the other side of the vehicle a substantially mirror-image device is necessary. In addition, for the adaptation to the different broom protrusions in sweeping relative to the outer contour of the sweeper telescoping carrier needed to be operated either by an additional cylinder or manually staked.

Object of the invention

It is a device for solving solidified road dirt to create, which is as an accessory preferably on street sweepers left and / or right side mountable and its off or swivel and lifting or lowering movements are driven by only a single-acting cylinder, with no additional Locking the transport position and manual ironing for various work supernatants should be necessary.

Explanation of the essence of the invention

The invention is based on the object with only one cylinder the vertical and horizontal deviations of the road surface of the lane of the street sweeper nachzuführen the scratching head to provide the necessary forces and to solve the pollution and bring the scraper head in its transport position and there without special Lock to keep.

According to the invention the object is achieved in that a known Krotzkopf is guided on a support with a likewise known ScV'h wire joint of a working cylinder and a flexible, constant-length member in cooperation with a spring element on a guide rod. On a side arm of the carrier obliquely upwards to the center of the vehicle directed working cylinder is articulated. In the vicinity of this pivot point, a flexible, constant-length member is hinged, which is streamlined in the transport position and is directed obliquely upwards to the outside of the vehicle. The other articulation points of working cylinder and flexible, constant length member are located on the vehicle. Furthermore, a spring element is attached to the carrier, which pulls it on the guide rod in the direction of an inner stop on the guide rod.

In function the following procedure results:

In the transport position, the carrier with the scraping head is raised by the action of a spring element on the inner stop. The flexible, length-constant member is streamlined. When pressurizing the working cylinder this moves the carrier to the outside, with its pivot point describes a forced by the flexible, constant-length member circular path outwards and down to the bottom contact of the scraper tools.

Thereafter, the flexible, length-constant member slackens, the outward movement continues and the scratching tools can freely adapt horizontally and vertically to the road surface.

embodiments

The invention will be explained in more detail below using an exemplary embodiment and four further variants of embodiment:

Fig. 1: the basic version in working position and - hinted - in Transportstellunj, as well as two-sided execution

Fig. 2: a variant with articulated joint

Fig.3: a variant with swivel Fig.4: a variant with guide curve

In Fig. 1 is on a guide rod 1, a carrier 2, on which a known scratching head 3 is rotatably and slidably mounted.

An outer stop 4 and an inner stop 5 are mounted on the guide rod 1 and limit the range of motion of the carrier 2.

On the support 2, a side arm 8 is fixed to which the piston rod 7 of a working cylinder ^ 8 is articulated, Also on the carrier 2, a tension spring 9 is mounted as a spring element.

Attached to the side arm 6 is a flexible, length-constant member 10 (e.g., chain, rope, or ribbon). Guide rod 1, 8 working cylinder and flexible, constant-length member 10 are on the other hand attached to the vehicle.

When pressure is applied to the working cylinder 8, the carrier 2 moves on the guide rod 1 to the outside. Even before reaching the outer stop 4, the flexible, constant-length member 10 is relaxed, so that upon reaching the outer stop 4, which corresponds to the working position, the flexible, constant-length member 10 is so loose that the scraping head 3 can follow the bump and through the working cylinder 8 is pressed, since by the distance of the articulation point of the working cylinder on the carrier 2 to the axis of rotation of the carrier to the guide rod 1, a pressure corresponding to the working cylinder torque is formed. Upon removal of the pressurization of the working cylinder, the spring moves the carrier inward, with tightening of the flexible, constant length member, the scraper tools from the ground and the carrier returns to the transport position and is there pressed by the spring against the inner stop, so that a Lock is unnecessary.

The illustrated right-hand embodiment can be mounted on the left side using the same components-except for mirror-image scraping elements.

For the two-sided use is analogous, with a common guide rod 1,1 'is provided ι may. In an embodiment according to FIG. 2, the carrier 2 is provided with an articulated joint 11, which is held in a stretched position with a spring 12 and represents an additional alternative possibility of the crane head 3 in the event of obstacles.

The side arm 6 is attached to the bendable support member 13.

In another Ausführungsva'iante according to Figure 3 of the scraper head 3 is connected by a rotary joint 14 with the carrier 2, whereby sliding on obstacles according to the adaptation movement of the scraper head is made possible.

In a further embodiment of Figure 4, a guide cam 15 is mounted fixed to the frame.

The effect of the flexible, constant-length member can be replaced by a guide curve. The lateral arm of the carrier touches after removal of the pressure deflection of the working cylinder, the guide cam and is raised by the movement of the carrier inwardly of the guide curve.

The functions and movements for the other-side arrangement are analog.

Claims (6)

1. A device for solving solidified contaminants on roads and the like, which is used on vehicles, in particular sweepers, with one or more elastically mounted and vertically adaptable to the road surface, combined to form a scratch head scratches, characterized in that a carrier (2 ) of the scraper head (3) rotatably and displaceably mounted on an approximately transversely to the direction of travel guide rod (1) is un j of a slanting working cylinder (8) which is hinged to a side arm (6) of the support (2), against the force of a resilient element (9) is pressed outwards and downwards, and that a flexible, but constant-length member (10) guides the articulation point of the working cylinder (8) on a circular arc. 2. Apparatus according to claim 1, characterized in that on the support (2) of the scraper head (3) an articulated joint (11), which is pressed by a spring element (12) in an end position and located on the by the articulated joint (1 ^) bendable carrier part (13) of the lateral arm (6) is located, on which the oblique working cylinder (8) is articulated. 3. Apparatus according to claim 1 and 2, characterized in that on the support (2) of the scraper head (3) is an approximately vertical hinge (4), on which the scraper head (3) rotatably mounted in a festlegbaien by stops required area is. 4. Apparatus according to claim 1 to 3, characterized in that instead of the flexible, constant-length member (10) has a guide curve (15) is mounted. 5. Apparatus according to claim 1 to 4, characterized in that for the right and left side attachment to the vehicle, the mounting receivers, holes and holders of the guide rod (1) and the carrier (2) are arranged symmetrically to a quasi-horizontal mounting plane. 6. Apparatus according to claim 1 to 5, characterized in that the optional right, left or common arrangement of the scraping elements, the guide rod (1) on both sides for receiving the carrier (2,2) is formed and both left and right scratching heads are mounted.