US2641975A

US2641975A - Concrete floor compactor

Info

Publication number: US2641975A
Application number: US229808A
Authority: US
Inventors: Carl A Cletus; Olof G Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-06-04
Filing date: 1951-06-04
Publication date: 1953-06-16
Anticipated expiration: 1970-06-16

Description

June 16, 1953 c. A. CLETUS ET AL 2,641,975

CONCRETE FLOOR COMPACTOR Filed June 4, 1951 3 Sheets-Sheet 2 FIG. 2

FIG. 3

I '0 I' I0 4 25 2b INVENTORS CARL A. OLETUS 8 OLOF G. ANDERSON J1me 1953 c. A. CLETUS TAL ,64

CONCRETE FLOOR COMPACTOR 3 Sheets-Sheet 3 Filed June 4, 1951 3 FIG it. A\

INVENTORS 04m A. GLETUS a .OLOF a. ANDERSON BY W 7, M

Patented June 16, 1953 UNITED STATES 2,641,975 OFFICE PATENT CON CRETE FLOOR COMPACTOR I Carl A. Cletus and 0101 G. Anderson, San Diego, Calif.

Application June 4, 1951, Serial No. 229,808

Claims. (01. 94 549) and tamping machine which vibrates moist conthereof; Fig.4 is an enlargedfragmentary sectional view taken from the line 44 of Fig. 3; and Fig. 5 is-an enlarged fragmentary sectional view taken from'the line 5-5 of Fig. 3.

crete-into compact condition and submergesthe to the surface whereupona smooth, fine grain material is present at the upper surface of the floor when the concrete dries;

Second, 'to'provide a compactor of this class V which readily and conveniently covers all of a :concrete floor during its movement thereover including the compaction of a concrete floor into and adjacent corner so that uniformity of compaction'throughout the entire floor areais accomplished;

Third, to provide a compactor of this class having long straight feet portions which may be motivated toward a wall parallel thereto until the said feet are contiguous to the wall whereupon said compactor may be readily reversed for motivating the same away from the wall obtaining complete coverage and compaction of floors throughout the total floor areaand contiguous to all of the walls;

' Fourth, to provide a compactor of this class which requires the exercise of a minimum amount of manual effort in the operation of the same;

coarse particles of the concrete permitting the -flne, moist material of the concrete mix to rise Fifth, to provide a floor compactor of this class having novel motivating means including a vertically vibrating foot provided with diverting means which shifts the same when firmly engaged with the concrete in its lowermost vibrating' position; 7

Sixth, to provide a concrete floor compactor of this class having stationary feet and a centrally disposed vertically vibrating foot theamplitude of which is equal'to the raising of the stationary and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings -and to. the

characters of reference thereon forming a part .of this application in which: I

Figure 1 is a top or plan view of our concrete Similarcharacters of reference refer to similar parts. and portions throughout the several views ofthe drawings.

The frame I, feet 2 and 3, vibrating foot 4,

springs

5, 6 and "I, plate-8, roller 9, roller guides I 0 and II, roller diverter I2, pin I3, springs I4 and I5, crank shaft I6, connecting rods I8 and I1, pulleys I 9 and 20', belts 2I, motor shaft 22, idler roller23,

levers

24 and 25, link 26,

control rods

21 and 28 and the handle 29 constitute the principal parts and portions of our concrete floor compactor.

The frame I of our concrete floor compactor is provided with downwardly extending leg portions I sand I b on the lower ends of which'are the feet 2 and 3. These feet are constructed'of spaced timbers 2a and 3a, respectively having transverse connecting clips, or flanges, 2b and 3b through which extend the bolts 20 and 3'0 forming the support for these feet 2 and 3. It will be noted that the bolts 20 and'3c extend through the lower ends of the legs- Ia and lb of the frame I, the legs Ia being at one end of the frame Iwhile the legs Ib are positioned-at the opposite end of the frame I and spaced as shown in Fig. 3 of the drawings. The feet 2 and 3am of considerablelength longitudinally of the axis of the bolts" 20 and 30 as shown best in Fig. 1 of the drawings. The frame I is provided with opposed side rails lo and Id on which the bearings Ie and I f are secured. Opposite ends of the crank shaft I6 are journaled in thebearings Ie and If and this crank shaft I6 is provided with a pairof crank portions I6a and I6b on which the,connecting rods I! and I8 are journaled at theirupper ends. The lower ends of the connecting rods I1 and I8 are journaled by means of. bolts I'Ia and Iiia to the bearing brackets V wand 4b secured to the vibrating foot 4. This feet clear of the upper surface of'the concrete floor being compacted whereby lateral shifting of the vibrating foot when the stationary feet are above the surface of the concrete causes motifloor compactor; Fig. 2 is a side elevational view thereof; Fig. 3 is a front 'end elevationaljview Fig. 4 of the drawings.

vibrating foot-4 is substantially the same construction as the feet 2--and 3 and incorporates spaced timbers 40 similar to the spaced timbers 2a and 3a of the feet 2 and 3. Secured to the vibrating foot 4 at its middle portion intermediate the connecting rods I7 and I8 is the plate or fiat member 8. This plate or fiat members, as shown in Fig. 5, is rigidly connected to the vibrating foot 4 at its flange portion. 8a by means of the bolts 8b. Rigidly connected to the plate 8 is a bearing pin on which the roller 9 is freely, rotatably mounted. This roller fiextends from one side of the plate 8 which is vertically movable adjacent the roller guides I0 and I I, as shown best in Fig. 40f the drawings.

' These roller guides II] and I I. are positioned in opposed relationship to each other at opposite sides of the roller diverter I2, as shown best in g The roller guides I0 and II are fixed to a suspended plate lg 0f the frame I as shown in Fig. 4 of the drawings, and the roller diverter I2 is pivoted intermediate the roller guides l and II on the bolts 12a in "connection with the plate Ig. This plate Ig is provided with an arcuate slotted portion In therein through which the pin I3 extends. is fixed to the roller diverter I2 near its one-end and ing the opposite end of the pin I3 are.

These springs I4 and :I"5

the springs I4 and 15. are connected to the slidably movable control rod 28. in connection with the frame I longitudinally thereof and is arranged to reverse the angular direction of the roller diverter I2 for reversing the directional operation of our concrete fi'oor compactor.

Oppositeends of the slotted portion I the plate lg provide stops-for the pin l3hldbythe "5 of the drawings. 'As-shown'in Fig. 40f the drawings, the roller guides I0 and I I "are shaped toprovide parallel portions at theiropposite' ends spaced substantially the diameter of the roller 9. Eachof the guides intermediate-itsends'is curved outwardly away from the roller 9 so that the roller Q may pass at either side of'theroller diverter I2 inwardly 'of one 'of'the roller guides '5 and 6, is the spring "'I which is connected to the frame I onthebolt "20 extending through the legs I a of the "frame I. This spring! 'atits opposite end is connected'to the plate '8 as shown best in Fig. -3-of thedrawings, whereby :opp'o'sed tension is appliedto the vibrating "foot 4 urged in one directionby'thesprings S and "6. Fixed 'on't'he crankshaft I6 is a pulley I9 over which the belts 2 I extend'and thesebelts 2 I engages the pulley 20 'fixed on the -motor shaft '22 "extending from'the motor housing 22a. This motor housing'2-2a is supported on frame-cross members IR and I7 and pivoted to the upper side ofthe cross member I7 is thelever' 2 4 hating the "idler roller 23 revolubly mounted at the 'upper'end thereof. This'idler roller 23 is'ad-apted to engage the'b'elts '2 I and linked to the lever 24 below this roller '23 is the link 26 which is pivoted at "its opposite end to the lever "25 'pivotally mounted on the upper end-of the cross-member I7c. The control rod 21 is pivotally mounted to the upper end of the lever '25 and extends backwardly adjacent the handle 29 for manual operation of the idler roller 23 which places 'sufficient tension in the belts 21 to initiate operation of'the crank shaft I6.

The operation of our "concrete floor compactor is substantially as follows:

Whenthemotorshaft .22 istrevolving, the belts 2| convey motion to .thepulley I9 on the crank shaft I6 which causes rotation of said crank shaft IS with which the connecting rods I1 and I8 operate. As theconnecting rods [1 .and I8 force the vibrating .foot 4 upwardly and downwardly, the roller .9 on the trunnion or stud 8c of the plate 8 passes fromopposite extremities of the roller guides 1.0 and II around the roller diverter l2. As indicated by dash lines A in Fig. .4 of the drawings, the vibrating foot 4 .is .forceddown- This pin "I3 This control rod 28 is reciprocally mounted wardly a considerable distance below'the lower plane of the feet 2 and 3 which raises said feet 2 and 3 above the upper surface of the concrete floor being compacted, it being here noted that 5 theiconcretefioor being compacted is in the form of a layer of wet concrete. As shown in Fig. 4 bfthedrawings, the vibrating foot 4 when moving from the dash line position A upwardly, the roller19 :passesrthe roller diverter I2 which causes the roller 9 to travel along the intermediate "curved portion of the roller guide II and this movement shifts the frame I laterally 0f the -timbers mzanddlzt'of the ".feetr2 and:3 before 'the timbers "2a and 13a engage :the upper :surface 01 the wet concrete :floor ?being compacted, it :being noted that connecting :rods ZIJ and I8 virtually support the frame .I together with the pivoted :feet"2-and 3 .when the 'vibrating foot 4'isiin its lowermost dash line position shownrinfFig. d of the drawings. The connecting rods itllaand I 8 int-his supporting :relationship aprovideipivotal levers on which the .frame [I moves laterally of ithe timbers .2a1and T3Zl0f thB'lDiVOtBd-TBGC 2 and 3 when the :roller '9 movessilaterallypf @the axis of the bolt IZaaroundtheouter siderofwthe :roll'er diverter 1.2 "which is rigidly fixed to the "frame -'I on the :plate Ig. If it 'is desired 'to "re-- verse the directional .movement of our concrete fioor :compactor, the control .rod ".28 :is movedf'longitudinally 'oftth'e frame I shiiting'ithebalance of the springs I4 and Isfi causing therpin 13 :to be pivoted in the slotted portion lhrof -.the plat.e I g and :changing "the position 'of the roller diverter l 2-as indicatedin Fig.4 "of the drawings by dash lines. :Wshen so shifted, the roller diverter [2 :causes the roller 9 -."to :pass at opposite sides thereof with each upward 'and downward movement -of the vibrating foot :4. When the roller diverter -12 tie in "the :solid :line .position :as shown 'in Fig. '4 :of the drawings, the roller :9 passes around the left hand side thereof when traveling upwardly and passes :around the .right hand side thereof when traveling downwardly. With each upward and zdownwar'd :movement .of the roller -9, the roller .idiverter 1-2 is :pivoted against tension phone of the springs 14:101'1li5 which is accompanied "by movement :"of the :pin 3 in the slot Ih. When-the:roller cdi-verter I12 is shifted to the dash line-position :as shown in Fig. 4 of the drawings, the roller 8 :passes upwardly around .15116 might. hand side thereof and downwardly around the left hand :side thereof causing 'pivotal *movement :against tension ;of the springs 1'4 and "I 5 when traveling in :each direc- "tionup or down. The extremities of the-roller gu'ides I0 and II are parallel to each 'other and are spaced substantially the diameter of the "roller 9. The'springs'-'5, 6 and I provideinitial vertical alignment of the vibrating foot 4 and stabilize the same during vibrating operation thereof. With each lowering of the :vibrating "foot 4, the feet2 and '3 areraised above :the-surface of the concrete being compacted, and with each raising of the vibrating f'oot "4,"the feet 2 and 3 are forcefully gravitated intothe concrete being compacted. The vibrating amplitude of the "vibrating foot 4 laterally of the timbers 2a and 3a of the feet '2 and dis-substantially equal to the spaced relationship of the timbers 2a and 3a of the feet .2 and 3 and also "the timbers 4c of the vibrating foot 4. Thus,"movement 'of-ou-r concrete floor compactor laterally of the

timbers

2a, 40 and 3a causes the surface of a'fioor to be completely .agitated asour concrete floor compactor .passes .thereover. .It will he .jhere noted that the entire weight of our concrete floor compactor serves as a gravitating mass for forcefully engaging the feet 2 and 3 and the vibrating foot 4 with the upper surface of a wet layer of concrete during forming of a floor thereof.

Though we have shown and described a particular construction, combination and arrangement of parts and portions, we do not wish to be limited to this particular construction, combination and arrangement but desire to include in the scope of our invention the construction, combination and arrangement substantially as set forth in the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a concrete floor compactor of the class described, the combination of a frame, a plurality of feet connected to said frame, an intermediate foot, a pair of connecting rods pivoted thereto, a crank shaft on said frame with which the opposite end of said connecting rods are journaled and means for rotating said crank shaft, whereby said second mentioned foot at its lowermost position is considerably below the lower surfaces of said first mentioned feet, a roller for laterally actuating said second mentioned foot and positioned between said second mentionedfoot and said crank shaft, a fiat member secured to said second mentioned foot and rotatably supporting said roller, a plate suspended from said frame in a plane transverse to said crank shaft and parallel to said flat member, roller guides connected to said plate, said roller having bear: ing contact with said roller guides for moving said roller laterally of the axis of said crank shaft with each up and down movement of said roller occasioned by rotation of said crank shaft and reciprocation of said connecting rods, said roller guides having portions directed laterally of the axis of said crank shaft, a roller diverter pivoted intermediate said guides arranged to alternately direct said roller laterally of the axis of said crank shaft during up and down movement of said roller relatively thereto and spring means to return said diverter to starting position.

2. In a concrete floor compactor of the class described, the combination of a frame, a plurality of feet connected to said frame, a fiat plate, an intermediate foot connected to said plate, a pair of connecting rods pivoted to the foot, a crank shaft on said frame with which the opposite end of said connecting rods are journaled and means for rotating said crank shaft, whereby said second mentioned foot at its lowermost position is considerably below the lower surfaces of said first mentioned feet, a roller mounted on said flat plate for laterally moving said second mentioned foot and'positioned between said second mentioned foot and said crank shaft, a second plate suspended from said frame and arranged transversely relative to said crank shaft, roller guides connected to said second plate on which said roller may have bearing contact to move said roller laterally Of the axis of said crank shaft with each up and down movement of said roller occasioned by rotation of said crank shaft and reciprocation of said connecting rods, said roller guides having portions directed laterally of the axis of said crank shaft, a roller diverter pivoted intermediate said guides arranged to alternately direct said roller laterally of the axis of said crank shaft during up and down movement of said roller relatively thereto,

6 said roller diverter being spring loaded and pivoted intermediate said roller guidesfor reversing the lateral movement of said roller relative to said crank shaft.

3. In a concrete floor compactor of the class described, the combination of a frame, a plurality of feet connected to said frame, an intermediate foot, a pair of connecting rods pivoted thereto, a crank shaft on said frame with which the opposite end of said connecting rods are journaled and means for rotating said crank shaft, said'feet having spaced bars, means for shifting said second mentioned foot laterally of said firstmentioned feet, said means including a flat member connected to saidintermediate foot, a roller rotatably mounted on said flat member, a plate secured to said frame transversely arranged relative to said crank shaft, roller guides mounted on said plate, said roller having bearing contact with said roller guides, and springs between said intermediate foot and one of said plurality of feet whereby said intermediate foot is returned to its normal position after being laterally moved by said means.

4. In a concrete floor compactor of the class described, the combination of a frame, a plurality of feet connected to said frame, a flat plate, an intermediate foot connected to said plate, a pair of connecting rods pivoted to the intermediate foot, a crank shaft on said frame with which the opposite end of said connecting rods are journaled and means for rotating said crank shaft, said feet having spaced bars, means for shifting said second mentioned foot laterally of said bars when in downward position for moving said compactor laterally of said bars, said means comprising a roller pivoted and freely rotatably mounted on said flat plate, a second plate parallel to said flat plate and mounted on said frame, roller guides having laterally extended portions secured to said second plate, said roller following said guides during the up and down movement of the crank shaft.

5. In a concrete floor compactor of the class described, the combination of a frame, a plurality of feet connected to said frame, a fiat plate, an intermediate foot connected to said plate, a pair of connecting rods pivoted to the intermediate foot, a crank shaft on said frame with which the opposite ends of said connectin rods are journaled and means for rotating said crank shaft, said feet having spaced bars, means for shifting said second mentioned foot laterally of said bars when in downward position for moving said compactor laterally of said bars, said means comprising a roller pivoted and freely rotatably mounted on said flat plate, a second plate parallel to said fiat plate and mounted on said frame, roller guides having laterally extended portions secured to said second plate, said roller following said guides during the up and down movements of the crank shaft, said first mentioned feet pivoted to said frame, said second mentioned foot having springs connecting therewith extending lateralli of said bars and connected to said frame.

' CARL A. CLETUS.

OLOF G. ANDERSON.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,254,744 Jackson Sept. 2, 1941 2,306,089 Tamblyn Dec. 22, 1942