US2954982A - Sand and chip spreaders - Google Patents

Description

1950 E. w. SAIBERLICH 2,954,982

SAND AND CHIP SPREADERS Filed June 7, 1957 k; v m w United States Patent SAND AND crnr SPREADERS Erwin W. Saiberlieh, Menasha, Wis., assignor toFox River Tractor Company, Appleton, Wis., a corporation of Wisconsin 1 Filed June 7, 1957, Ser- No. 664,368 6 Claims. c1. 275-8) This invention relates to Improvements in Sand and Chip Spreaders.

Municipalities and other government agencies charged with the maintenance of streets and highways have need at certain times of the year, particularly in the North, for trucks equipped to spread materials such as sand and salt on the streets and highways, to control ice conditions. There is also a demand during certain periods vide a sand and chip spreader wherein the spreading spinner is mounted for vertical movement at the lower end of a spreader housing whereby it may be readily adjusted in a vertical direction relative to the housing to create a uniform spread varying from eight feet to thirty- 'two feet in width. With prior devices such a range of spread has not been possible. With the present invention the spread is so flexible that with maximum adjustment in one direction the full width of a street can be covered, and then with a simple manipulation the spread can be adjusted so that the sand will pass between parked cars without throwing sand on the cars themselves.

The invention is also useful in spreading sand under 7 cars which are stalled on slippery hills so as to enable said cars to get traction during emergency periods which occur during and shortly after a new snowfall.

The arrangement is also such that the mechanism may be adjusted to throw sand under the rear wheels of the sand spreading truck itself to thereby improve its traction on hills in bad weather.

Other objects of the invention are toprovide a sand and chip spreader which is simple in construction, foolproof in operation, which can be operated from a remote location such as from the drivers cab, and which is otherwise well adapted for the purpose described.

With the above'and other objects in view, the invention consists of the improved sand and chip spreader, and all of its parts and combinations, as set forth in the claims, and all equivalents thereof.

In the accompanying drawings, illustrating one complete embodiment of the preferred form of the invention, in which the same reference numerals designate the same parts in all of the views:

Fig. 1 is a fragmentary perspective view looking at the rear and at part of one side of a truck equipped with the improved sand spreading body;

Fig. 2 is a vertical sectional view through the sand spreader housing showing the improved spreading mechanism;

Fig. 3 is a horizontal sectional view taken on the line 33 of Fig. 2 just above the bearing 25 and below the sh d n Fig. 4 is a horizontal sectional view taken on the line 4-4 of Fig. 2 through shield 38.

Referring more particularly to the drawing, the numeral 10 designates a standard dump truck body having the tailgate removed. Within the body is the auxiliary body 11. This body is preferably mounted as fully disclosed in my beforementioned copeuding application, Serial No. 639,680, now Patent No. 2,881,024. The auxiliary body is generally a truncated triangle in crosssection so that it has a trough-like bottom 12 within which an anger 12 is rotatably supported. The anger is rotatably driven in any manner and is adapted to move material such as sand, chips, salt and the like from within the auxiliary body out of its rear end, as shown in Fig. 2.

The rear end of the auger trough 12 extends into a spinner housing 13 and is open whereby material 14 discharged by the auger will fall downwardly by gravity through the spinner housing (see Fig. 2). The spinner housing is suitably supported at the rear lower portion of the auxiliary body 11.

Suitable driving mechanism for the auger, within a housing 15, may also be connected in any manner to a sprocket 16 on the shaft 17 to drive the latter. Gears within a gear box 18 transmit rotation to a vertical shaft 19 suitably journalled vertically in the gear box. The latter is supported by a bracket 20 on the rear end of the auxiliary body'll. The lower end of the shaft 19 depends from the bottom of the gear box 18 and is connected by a coupling 21 with a splined sleeve 22. A spinner shaft 23 has its upper ends splined as at 24 to fit slidably within the splined sleeve 22 whereby the shaft may be adjusted vertically with respect to the sleeve 22 while still being rotated thereby. The shaft 23 has a lower portion extending rotatably through a bearing 25 in a fixed bracket 26, the latter being suitably supported by the housing 13.

A rock shaft 27 is suitably supported at the rear of the auxiliary body for rocking movement, and has an operating lever 27' rigidly secured to its outer end. The lever may have a yielding detent 28 for coaction with notches 29 in a bracket 30 on the side of the spreader housing to releasably hold the lever in a desired position against the tension of a coil spring 31. Suitable linkage 36 may extend from the upper end of the lever to a position next to the cab of the truck whereby the lever 27 may be actuated from a remote point, such as the drivers seat.

Also rigidly mounted on the rock shaft 27 is a lever 32. The outer end of the lever carries a pin 33 which projects inwardly to engage with a groove 34 in a collar 35, the latter being rigid with the spinner shaft 23. In this manner, rocking of the shaft 27 by the lever 27' in one direction or the other will cause upward or downward movement of the collar 35 and shaft 23 without interfering with the rotating movement of the shaft.

Depending from the collar 34 is a tubular shield 37 the lower end of which telescopically overlaps an elongated vertically fixed shield 38, the latter surrounding the spinner shaft to protect it from the falling material 14;

The lower end of the shield 38 has a downwardly flanged circular hood 39 which is over the bearing 25 to protect the latter. Thie shield 38 may be suitably supported in the housing 13. Another sleeve 39' which surrounds a lower portion of the spinner shaft 23 is supported within the bearing 25 and has the inner bearing race 40 se.

vertically. At the same time during rotating movement of the spinner shaft 23, the sleeve 39 and inner bearing race 40 rotate therewith. Thus, the lower portion of the. spinner shaft is supported for both rotating and sliding movement while the bearing is protected from the falling. material. I

Rigidly connected to the lower end of the spinner shaft 23 is aspreading spinner 43. This comprises a disk with radial vanes 45 on its upper side. 'In the lowermost position of adjustment the spinner 43 isin the position shownby full lines in Fig. 2, that is, just below the bottom of the outwardly flared skirt 44 "at. the. lower end Of the housing 13. By-movement of the lever 27' the spinner may be moved upwardly, as. indicated by the arrows, to various selected. positions within the skirt. When in an uppermost position the, material thrown centrifugally by the spinner hits the skirt; and falls downwardly with less spread. When the spinner is in the full line position of Fig. 2, maximum spread is obtained.

It is apparent that the vertical position of the spinner aeeaeea 4 tion, said skirt having an open lower end, a horizontally rotatable spreading spinner of substantially less diameter than thesize of said open lower end of the skirt and of substantially greater diameter than the size of said open lower portion of the spreader housing, a control on said receptacle, cooperating means on said housing and spinner supporting the latter for vertical adjustable movement 1 from a position below said'skirttoa selected position therewithin while the spinner is rotating to control the width of spread, coperatingfmeans on said control and spinner for effecting'said' adjustable movement including means providing for rotation during said vertical adjustable movement, and drivingmeans for said spinner on the receptacle including a drivingconnection which permits said vertically adjustable'movement of the spinner while it is rotating.

3. In a mobile sand spreader having a wheeled receptacle for sand or the-like, a spreader housing depending 43. may be adjusted while the spinner is rotating and while material is being spread. Also, if the spinner is in a position for maximum spread to cover the entire width of the street, then if the truck approaches parked cars, the spinner may be instantaneously raised without stopping the spinner action to prevent throwing of material at the cars. Through the remote linkage 36, the adjustment may be taken care of from any remote point such as adjacent the drivers cab. During movement of the lever 27, when a pull is exerted in one direction or the other thereon the detent 28 will slip into and out of the notches 29, and when the lever arrives at a predetermined position the spring 31 will releasably hold the detent in a selected notch.

It is apparent that the device provides for great flexibility in the range of spread to instantaneously suit any condition encountered. For example, the trucks may be called out during a snowstorm to throw sand beneath cars that are stalled on slippery hills, and the spread may be so adjusted as to direct the sand wherever desired. If the truck itself has trouble with traction, the spinner may be adjusted to throw sand underneath its own wheels.

It is to be understood that the present invention is not to be limited to the exact details of construction shown and described, for obvious modifications may occur with persons skilled in the art.

What I claim is:

1. In a mobile sand spreader having a wheeled receptac'le for sand or the like, a tubular spreader housing depending from the rear of said wheeled receptacle and having a bottom skirt with an open lower end, a rotatably supported driven shaft above said spreader. housing, driving means on said receptacle for said driven shaft, 2. spinner shaft extending therebelow within said housing, means between said driven shaft and the upper end of said spinner shaft whereby the latter may be vertically moved while it is being rotatably driven, a horizontally rotatable spreading spinner mounted on the lower end of said spinner shaft and positioned for movement with the spinner shaft when the latter is vertically moved from a position below the open lower end of said skirt to a position therewithin to control the width of spread, a vertically fixed tubular shield supported within said tubular spreader housingthrough which said spinner shaft extends and within which it is vertically movable and rotatable, and means projecting horizontally into an upper portion of said spreader housing and having an open end positioned to discharge material from the wheeled receptacle. onto an upper portion of said tubular Shield.

2. In a. mobile. sand spreader having a wheeled receptacle. for sand or the like, a spreader housing depending from the rear of said wheeled receptacle and having an open lower portion, a downwardly and outwardlyflared skirt projecting downwardly from said open lower porfrom the rear of said wheeled receptacle and having an outwardly flared bottom portion with an open lower end, said portion having an upwardly decreasing area in horizontal section, an upright spinner shaft rotatably and longitudinally slidably mounted within said spreader hous ing, a spinner mounted on the lower end of said shaft for rotation therewith in a horizontal plane and positioned adjacent said open lower end of the bottom skirt and of substantially less size than said lower end, driving means on the receptacle including a driving connection which permits longitudinal sliding movement of the shaft while being driven for rotating said shaft to drive the spinner, a control on said receptacle, cooperating means on said control and spinner shaft for raising and lowering the shaft when said control isoperated, said cooperating means including a connection which provides for rotation of the shaft while it is being raised and lowered.

4. In a mobile sand spreader having a wheeled receptacle for sand or the like, a spreader housing depending from the rear of said wheeled receptacle and having a bottom skirt with an open lower end, a rotatably supported upright driven shaft, means on the receptacle for driving said. shaft, a bearing supported in vertically fixed position in said spreader housing below and in alignment with said driven shaft, a spinner shaft rotatably and vertically adjustablysupported in said bearing within Said housing and below said driven shaft, a splined connection between said driven shaft and the upper end of said spinner shaft whereby the latter may be vertically moved while it is being driven, a horizontally rotatable sand spreading spinner mounted on the -lower end of said spinner'shaft adjacent the open lower end of said bottom skirt and ofv substantially less size than said lower open end, a control on the receptacle, and cooperating means on said control and spinner shaft for vertically adjustably moving the spinner shaft to vary the vertical position of the spinner with respect to said open lower end of the bottom skirt from a position below said skirt to a selected position within said skirt and thereby control the width of spread, said cooperating means including a connection which permits rotation of the spinner shaft while it is being vertically adjusted.

5. In a mobile sand spreader having a wheeled'receptacle for sand or the like, a spreader housing depending from the rear of said wheeled receptacle and having a bottom skirt with an open lower end, a rotatably supported driven shaft, means on the receptacle for driving said shaft, a bearing supported in vertically fixed position .in said spreader housing below and in alignment with said driven shaft, :a spinner shaft rotatably and vertically adjustably supported in said bearing within said housing and belowsaid driven shaft, a splined connection between said driven shaft and the upper end of said spinner shaft whereby the latter may be vertically moved while it is being driven, a horizontally rotatable sand spreading spinner mounted on the lower end of said spinner shaft adjacent the lower open end of said skirt and of substantially less size than said open lower end, lever means pivotally mounted on the receptacle, cooperating means on said lever means and spinner shaft for vertically adjustably moving the spinner shaft, said cooperating means including a connection which provides for rotation of the spinner shaft while said adjustable movement is taking place, said cooperating means providing for movement of said spinner shaft a sufficient distance to move the spinner from a point below said skirt to a selected position within said skirt and thereby control the width of spread, and a remote control for said lever means.

6. In a mobile sand spreader having a wheeled receptacle for sand or the like, a spreader housing depending from the rear of said wheeled receptacle and having a bottom skirt with an open lower end, means projecting horizontally into said spreader housing for discharging material from the receptacle into said spreader housing to fall by gravity therein, a rotatably supported driven shaft above said spreader housing, means on the receptacle for driving said shaft, a spinner shaft extending therebelow within said housing, fixed means in the housing supporting said spinner shaft for rotation and for axial movement, a splined connection between said driven shaft and the upper end of said spinner shaft whereby the latter may be vertically moved while it is being driven, a horizontally rotatable spreading spinner mounted on the lower end of said spinner shaft adjacent the lower end of said skirt, cooperating means on the receptacle and spinner shaft for vertically adjustably moving the spinner shaft to vary the vertical position of the spinner with respect to said open lower end of the bottom skirt and thereby control the spread and including a connection which permits rotation of the shaft while it is being vertically moved, and a vertically disposed tubular shield through which said spinner shaft extends supported within the spreader housing, the upper end of said shield overlapping the horizontal discharge means and being within the path of material therefrom for shielding the spinner shaft from the falling material, the lower portion of said tubular shield being directly over said supporting means for the spinner shaft to protect the latter.

References Cited in the file of this patent UNITED STATES PATENTS 321,879 Amundson et al. July 7, 1885 544,012 Spangler Aug. 6, 1895 866,203 Johnson Sept. 17, 1907 1,275,332 Wallace Aug. 13, 1918 2,512,955 Martin June 27, 1950 2,673,090 Blumberg Mar. 23, 1954 FOREIGN PATENTS 518,225 Belgium Mar. 31, 1953 731,773 France May 31, 1932

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