US1403285A - Reversing mechanism for washing machines - Google Patents

Description

D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 6. 19x9.

D. H. BENJAMIN.

. REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 6| I919.

Patented Jan. W, 1922.

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D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

' APPLICATION HLED OCT. 6. 919.

1,41:@3,850 Patented Jan. W, 19225,

5 SHEETS-SHEET 3- D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

' APPLICATION FILED 0616,1919.

1AL385 Patented. Jan. 1 922.,v

5 SHEETS-S 4.

I D. H. BENJAMIN. REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 61 I9'I9.

Patented Jan. III, 1922,

' 5 SHEETS-SHEET 5- III/1.71

a re um s:

EMA H.- BENJAEEIN, 0F CLEVELAND HEIGHTS, OHIO, ASSIG-NOJR- T0 a or n t FTP; a a e it m it rrnnnrn'rra o.

BEITJATEEN, OF CLEVELAND HEIGHTS, OHIO.

REVERSINCT MECHANISM VJASHIIQ'G MACHINES.

Application filed October 6, 1919; Serial No. 328,873.

T 0 all whom it may concern:

l e it irnown that l, BENJAMIN, a citizen of the United States, residing at Cleveland Heights, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in lieversing l iiechanism for Washing lviachines, of which the following is a specincation.

This invention relates to reversing mecha nism nd particularly to that type of such various other types of mechanism but the resent invention relates particularly to ype of gearing wherein two oppositely h'ven members or gears are coupled or connected to drums on the main driven shaft by brake bands controlled automatically f lrom the gearing itself, all of the parts being arranged in such manner that when the driven members or gears are in motion the cylinder will receive its proper number of rotations in each direction and will be started in each direction with ease and without shock.

Further features of the invention will more fully and at large appear from the following description, drawings, and claims.

Referring to the drawings Fig. 1 is a side elevation of a washing machine provided with my improved gearing; Fig. 2 is an end elevation from the right in Fig. 1; Fig. 3 is an enlarged vertical sectional view on the line 3 3, Fig. 2, showing parts in section and in elevation; F e is a section taken upon the line Fig. 3 looking to the left; Fig. 5 is a sectional view taken upon the line 5-5, Fig. 3, also looking to the left, parts being omitted for clearness of illustration; Fig. 6 is a sectional view taken substantially upon the line 66,Fig. 2: Fig. '7 is a detailsection on the line 77, Fig. and Fig. 8 is a detail View, corresponding to Fig. 5 and showing another position of the parts.

In the drawings, lrepresents a suitable tub or casing supported on legs 2 and provided at one end with a bearing member 3 having a f-shaped notch l therein for receiving a trunnion of the cylinder, as will appear. at the opposite endof' the tub or casing'l is a bearing 5 secured to thetub and provided with a recess 6 for reception of a suitable packing adapted to bear against a main tub operating shaft 7 which projects into the tub and is provided with a driving head 8 having oppositely extending arms each provided with a socket These sock ets receive plugs 10 secured to a driving member 11 secured the head of the Washer cylinder 12. The opposite head of the cylinder is provided with the trunnion member 13 provided with a trunnion 14 adapted to engage in the socket l. The cylindrical wall 15 of the washer is perforated as is usual in machines of this type, there being only a few of the perforations shown.

It will be seen from the foregoing that the washer cylinder is supported at both ends and may be driven by means of the shaft 7. Secured to the end wall of the tub or cas g ji by means of a flange 16 is a gear casing i he flange 16 provides a bearlng for the 7, as shown in F 3, and another bearing l8is provided for the outer end of said shaft in the cover 19 of said gear casing.

Secured to the shaft 7 within the casing 17 are drum hubs 20 and 21 supporting cylindrical drums 22 and 23 respectively. These drums are engaged by suitable bands which are automatically operated to drive the shaft 7 in opposite directions, as will fully appear. I

ldotatably mounted upon the hub 20 is a drum driving gear 2 which is provided with a shaft 25 preferably mounted in a suitable bearing forming a part of one of the spokes and located near the periphery of the gear. This shaft 25 is provided with a band operating lever 26 having a pair of spaced'arms 27 extending in one direction from the shaft and a pair 28 extending in the opposite direction, the former being pivotally connected to a band pull rod 29 and the latter being connected to a pull rod 30. The pull rod 29 extends through a block 31 pivotally mounted in cars 32 secured to one end of the band 33. On the rod 29 is an adjustable nut 35 for regulating the pressure of a compression spring 3% which transmits yielding pull of the rod 29 to the band member 24 but at a slower rate.

The pull rod in like manner passes through a block 36 pivotally mounted in ears 37 formed on the opposite end of the band 33. A pressure spring 38 and adjusting nut 39 are also provided forr'od .30. "W hen the shaft 25 is rotated in the clockwise direction, as shown in Fig. 7, the band 33* wi'll'be tightened upon'the flange of drum 22 and the gear 24 will. be coupled to drive the washer cylinder in one direction.

Secured to the shaft 25 on the opposite side-ofthe gear 24 is an operating lever 40 provided with a stop portion 41 adapted for engagement with a pin 42 carried by the gear to limit the movement of the lever. Theinner end .of the lever 40 extends toward the shaft 7 and is provided with a friction roller 43 adapted for engagement with a cam flange'44 secured to the side of a cam gear 45 loosely mounted upon the shaft 7.-

two arms and 56 secured by bolts 57 inan'extension 58 of the gear casing, as shown clearly in Figs. 3 and 4. As the gear 48 rolls planetwise around the stationary gear 49 it causes gear 45 and the cam 44 to rotate around shaft 7 in the same direction as This differential movement between members :24 and 45 causes member 24 to overtake member' 45 by a complete revolution in a given number of revolutions of member 24 depending upon the relative sizes of the planetary gears, as will be readily understood;

When the gear 24 is rotated the band operating mechanism is carried bodily around by it and while the roller 43 moves along the cam flange 44 the band 33 is tightened, this effect continuing during a number of rev0- lutions of the gear 24 depending upon the J length of flange 44 and the relation othe l'ElCe.

planetary gears, as before stated. the band wheel is rigidly secured to the shaft 7 the washer cylinder will also be driven. The cam flange 44 is substantially of the form shown in Fig. 5, is less than a semi-circle in extent and is provided with a downwardlyextending portion 59adapted" for elevating the roller 43 ontotheconcen trio or main portion of the flange. The opposite end of the'fiange is provided with a curved portion 60 which forms a quick re lease for the lever 40. Springs 4O tend to release the band 33 and swing the lever 40 inwardly toward the cam flange. v r A similar set of gears and earns is provided for the drum or band wheel 23 except that the cam-44 of this set isso located j tive, etc. The gears 24 are identical, as be fore stated, but they are driven in opposite directions and the mechanism performing this function will now be described.

Referring to Fig. 6, it will be seen that the two gears 24 mesh with pinions 61 and 62 the former being mounted upon a shaft 63 supported in the bearing 54 of the bracket 52 and in a bearing 64 formed in the cover 19 opposite to. the extension 58 of the gear casing;

The pinion 62 is wider than the gear 24, is mounted upon a short shaft 65 supported in the bearing 53 and meshes with a pinion 66 keyed to the shaft 63. The shaft 63 extends beyond the bearing 64 through a clutch housing 67 formed on the cover plate 19 and into a bearing 68 provided upon a clutch housing cover 69. Within the clutch housing thus formed the shaft 63 is provided with clutch member 70 loosely splined upon the shaft 63 and adapted to be actuated by a yoke 7lengaging the peripheral groove 72 of the clutch member. i'This clutch member'is provided with a socket 73 adapted to receive the pin 74' slidably mounted in a driving gear 75, and yield ingly heldin an outward position by; a

spring '76.

fThe driving gear 75 is loosely mounted upon the shaft 63, is held in place by a collar 77 and is driven by a driving pinion 7 8 operated from a suitable motor 79. The yoke 71 forms part of an'operating lever .80 which extends out to a. convenient point for operation. It will be seen from the foregoing mechanism that the two gears 24 are driven in opposite. direction and that the power may be applied as desired by the clutch. y I Each gear 24 ispreferabIy provided, with a counterweight24 diametrically opposite to the shaft '25 and associated parts,,although this is not essential. L

What I claim is 1. In combination, an operating shaft, and

driving means there-for, comprlslng a drum connected thereto, a brake band arranged to frlctionally seize said drum, means. for r0- tating said band to drive the-drum, and au-.

of the drum for actuating said band to seize and release'the drum. f V

2. In a washing machinev reversing mechanism, the combination, of an operating shaft, and driving means therefor, compris mg a drum connected thereto, a brake band arranged to frictionally seize said drum,

tomatio means governed by the rotation of v the band and independently of the rotation" raoaaee means for rotating said band to drive the drum, a movable member for actuating said band to seize and release the drum, and an operating cam over which said member travels.

3. In a washing machine reversing mecha nism, the combination of an operating shaft, and driving means therefor, comprising a drum connected thereto, a brake band arranged to frictionally seize said drum, means for rotating said band to drive the drum, a movable member for actuating said band to seize and release the drum, an operating cam over which said member travels, and means for rotating said cam in the same directton as said band.

a. In a washing machine reversing mechanism, the combination of an operating shaft, and driving means therefor, comprising a drum connected thereto, a brake band arranged to frictionally seize said drum. means for rotating said band to drive the drum, a movable member for actuating said band to seize and release the drum, an operating cam over which said member travels, and means for rotating said cam in the same direction as said band at a different rate of speed.

5. In a washing machine reversing mechanism, the combination of an operating shaft, and driving means therefor, comprising a drum connected thereto, a brake band arranged to frictionally seize said drum, means for rotating said band to drive the drum, a movable member for actuating said band to seize and release the drum, an operating cam over which said member travels, and planetary gearing for producing differential rotation of said band and cam.

6. In combination, an operating shaft, and

reversing mechanism therefor, comprising a pair of drums connected to said shaft, a brake band for each drum, means for rotating said bands in opposite directions, and means for alternately operating said bands to seize the drums.

7. In combination, an operating shaft, and reversing mechanism therefor, comprising a pair of drums connected to said shaft, a brake band for each drum, means for rotating said bands in opposite directions, and two cams, one for operating each band.

8. In. combination, an operating shaft, and reversing mechanism therefor, comprising a pair of drums connected to said shaft, a brake band for each drum, means for rotating said bands in opposite directions, two

cams, one for operating each band, and means for rotating each cam with its respective brake band.

9. In combination, an operating shaft, and reversing mechanism therefor, comprising a pair of drums connected to said shaft, a brake band for each drum, means for rotat' ing said bands in opposite directions, two cams, one for operating each band, and means for rotating each cam with its respective brake band, but at a difierent rate of speed.

10. In combination, an operating shaft, and reversing mechanism therefor, comprising a pair of drums connected to said shaft, a brake band for each drum, means for rotating said bands in opposite directions, two cams, one for operating each band, and planetary gearing operated by rotation of said bands for also rotating said cams.

In testimony whereof I aflix my signature.

DANA II. BENJAMIN.

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