FI57460B - ANORDNING FOER SPRIDNING AV SAND SALT ELLER LIKNANDE MATERIAL - Google Patents

Description

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^ ^ (51) Kv.ik.3 / Intct.3 E 01 C 19/20 FINLAND —FINLAND (21) Petenttlhekemue - Patenten * 6knin | 130/71 (22) Htktmiipllvl - Ana6knlngidt | 19-01.71 ^ ^ (23) Starting Line — Giltl | h «tidtg 19.01.71 (41) Gotten Swept - Bllvlt offentllf 25.08.71

Patent and Registration Offices! » (44) NlhavUaip «no, |. heard.public.un date.-

Patent- och registrstyrelsan Antöktn utltgd och uti. * Krift «n pubiicend 30. Oi ·. 80 (32) (33) (31) Privilege claimed— Begird prlorltet 2 ^ .02.70

Sweden-Sweden (SE) 2327/70 (71) (72) Karl Gunnar Lyktberg, Tvärvägen 5, 171 30 Solna,

Kurt Pettersson, Sjöbjörnsvägen 30, 117 * + 7 Stockholm,

This invention relates to the application of sand, salt or a similar substance. This invention relates to the application of sand, salt or a similar substance. intended either to be supported by a vehicle (tractor, car or similar) or to be towed by a vehicle with wheels or feet, comprising a material container with an outlet below, with hatches opening a predetermined part of the width of the opening and a drum The main features of this particularly advantageous device of this type are set out in the appended claim 1, for the application of a part corresponding to the width of the free opening of the cross-section of the device.

According to another feature of the invention, the drum may be pivotally mounted on suspended support arms and may be pivoted to a position in which it is completely lateral to the outlet of the container. With this arrangement, the tank can be emptied of the transverse shaft, if desired, without obstructing it, as long as the drum is turned to the side.

An embodiment of the device according to the invention will now be described with reference to the drawings, the figures of which more or less schematically show a side view of a tractor mounted rear tractor in Fig. 1, a longitudinal section on a larger scale in Fig. 2 and a front view of the same device 4 on an even larger scale, a partial section similar to Fig. 2 and showing in more detail, Fig. 5 a view along the line VV in Fig. 4. Figures 6, 7 and 8 show the application device mounted on the tractor during the application of the material, the application taking place over its entire width, for 2/3 of the width and 1/3 of the width, respectively.

In Fig. 1, 1 denotes a tractor with a tank 2 fitted behind it, for example for sand, gravel, salt or mixtures thereof. The hollow drum 4, the circumference of which is provided with openings for the inlet and outlet of material, which material enters from the bottom of the container 2 through an elongate opening therein, is arranged to be mechanically rotatable, e.g. hydraulically, and with a suitably adjustable speed. As shown in Fig. 1, the drum can be mounted between the support arms 3, so that with this arrangement it can be easily turned to the side and the opening of the container can be completely released, e.g. for its rapid emptying. The side-turned position is shown in Figure 1 by dashed lines.

Regardless of whether or not this reversible attachment of the drum is made, Figures 2-5 show the container and the drum in more detail. The container is provided with hatches 5 for closing or opening a larger or smaller part of the outlet. Preferably, three hatches 5 are mounted next to each other for the entire width of the opening, and they are attached to support arms 6 bent at an angle at their lower edge, which are pivotally mounted on the front wall of the container 2. The hatches are made by turning the support arms to move in their own plane. Hydraulic devices 7, which can be operated from the cab of a profitable tractor or car, make it possible to selectively close and open the hatches 5 so that material can be fed over the entire width of the tank or, for example, 2/3 or 1/3, respectively (Figures 6-8).

Below the opening there is a drum 4 mounted parallel to it, which can be rotated by a hydraulic motor, fed from the hydraulic system of the vehicle, or by a purely mechanical drive. The drum 4 is divided by partitions 8 into a suitable number, in this case three parts, for receiving material from the respective parts of the container opening opened by the respective hatches 5. To feed and remove material from the drum, the drum is provided with longitudinal rows of openings 9.

Mounted inside the drum is an accompanying shaft or log 10 having a cross-section to partially guide the material outwardly toward the inner wall of the drum, partially to prevent material from flowing directly out of the container through the drum when stopped.

A rotatable shaft 11 is mounted on the container 2 in a known manner, provided with pins 12 or similar protruding parts intended to keep the material 13 in the container finely divided and to feed it towards and through the outlet opening of the container.

Figures 4 and 5 show in more detail the above-mentioned devices and their mode of operation. The hydraulic devices 7 open the hatches 5 against the force of the springs 14, which springs tend to keep the hatches closed. Figure 5 shows threaded bolts 15 provided with contact nuts 16, which can be set in different positions and thus determine the degree of opening of the hatches, with which the desired amount of material can be obtained. Instead of hydraulic operation, the hatches can be operated by a simpler method by hand alone.

The edges of the opening of the container 2 are provided with wear edges 17, 18 of rubber or similar resiliently yielding material, which allow a good seal partly against the drum 4 and partly against the hatches 5. The wear edge 17 can be eliminated to the side, e.g. in the way of larger stones in the material, which could otherwise damage the dispenser. The rim 17 or the part of the wall of the container 2 to which the rim is attached may also be pivotally mounted to facilitate rapid emptying of the container in the sideways position.

For example, when sanding a street corridor, according to Fig. 7 or 8, only one or a couple of the blocks of the drum 4 can be allowed to operate, so that a part of the cross-section of the drum remains intact. In this case, the tractor driver does not move all the hatches 5 out of the tank opening. The drum 4 can, of course, be divided into more than three blocks and then a corresponding number of hatches 5 can be installed.

Claims (8)

A device for spreading sand, salt or similar material and intended to be either carried or, provided with wheels or rails, towed by a vehicle (1) (tractor, car or the like), which device comprises a container (2) for the material with an exit opening at the bottom, provided with hatches (5) for opening a predetermined portion of the width of the opening and with a drum (4) arranged below the opening for spreading the material over a portion corresponding to the width of the exposed opening characterized area that apertures (9) for passage of the material are arranged in the wall of the drum (4), the shaft (10) having a cross-shaped or cross-like section arranged substantially coaxially with the drum to prevent the material from to fall transversely through the drum openings (9) at a standstill and to guide the material out towards the drum's inner wall during operation. Device according to claim 1, characterized in that the drum (4) is divided into several sections which are separated by radial walls from each other and that hatches (5) of corresponding width and separate maneuverability are provided. Device according to claim 2, characterized in that the slots (5) are arranged slidable substantially in their own pianos.