USRE21414E

USRE21414E - konow

Info

Publication number: USRE21414E
Authority: US
Publication date: 1940-04-02

Description

'0. L. KQNOW April 2, 1940.

HARVESTER REEL Original Filed April 3, 1937 2 Sheets-Sheet 1 April 2, 1940; o. L. KONOW HARVESTER REEL Original Filed April 3, 1937 2 Sheets-Sheet 2' Reissued Apr. 2, 1940 Otto L. Konow, Lockport, 111., assignor, by direct and mesne assignments, to Allis-Chalmers Manufacturing Comp Delaware any, a corporation of Original No. 2,095,364, dated October 12, 1937 Serial No. 134,873, April 3, 1937.

Application,

for reissue September 26, 1939, Serial No.

, '7 Claims.

The present invention relates to new and useful improvements in reels for agricultural machines such as harvesters and combines and has for its primary object to provide, in a manner as hereinafter set forth, means whereby the reel may be conveniently raised or lowered to any desired position from the operators seat of the tractor or other power unit to meet various conditions that are frequently encountered, such as tall and short grain.

Another very important object of the invention is to provide novel means for maintaining the proper tension on the drive belt regardless of the position of the reel.

Other objects of the invention are to provide a reel of the aforementioned character for agricultural machines which will be comparatively efficient and reliable in use, compact and which designate corresponding parts throughout the several views, and wherein:

Figure 1 is a perspective view of an embodiment of the invention.

Figure 2 is a view in front elevation of the reel shaft bracket.

Figure 3 is a vertical sectional view,taken substantially on the line 3 -3 of Fig. 2.

, Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises an upward- 1y extending reel post I of substantially square cross section which is provided with suitable means at its lower end, as at 2, for mounting said post on a portion of the frame, near the forward end thereof, of the reaper or. other machine for swinging movement in a vertical plane. Mounted. for vertical sliding adjustment on the post I is a bracket which is designated generally by the reference numeral 3, said bracket including transversely aligned clamps 4 which secure the tubular bearing 5 in position on the bracket ,3. The. shaft 6 of the reel is journaled in the bearing 5, said reel being designated generally by the'reference numeral 1 and including the usual, blades or paddles 8 mounted on the arms 9. As is customary, the reel is positioned over a cutting sickle at the forward end of the frame of the harvester, and, during operation, the blades of the reel bend the grain stalks toward the sickle which cuts the stalks, the reel blades assisting in carrying the severed stalks rearwardly onto a grain receiving portion or grain trough of the harvester.

The reference numeral I0 designates an extensible shaft at one end rotatablysupported' on the post I below the bracket 3, as at II. The other end portion of the shaft 10 is journaled in a suitable bearing I2 which is' loosely mounted on a support I3, said support being secured in any suitable .manner to the reaper, as by U-bolts or clamps I4. Fixed on the outer end of the shaft I0 is a bevelled gear I5. Fixed on the shaft to.

adjacent the post .I is a sprocket I6. Interposed in the shaft I0 is a suitableuniversal joint I'I. Between the universal joint I! and the bearing I2, the shaft I0 is provided with a sliding connection I8. The connection I8 includes a polyg onal socket'slidably receiving a square portion of the shaft IIl. Rotatably mounted on the upper portion of the post I is a sprocket I9. The reference numeral 28 designates an endless chain which is trained around the sprockets I6 and I9. Interposed in the chain is a platell to which the bearing 5 is secured by a U-bolt or clamp 22;

Mounted on the bearing I2 at right angles thereto is a bearing 23 in which a shaft isjournaled. On one end of the shaft 24 is fixed a beveled gear 25 which drives the gear I5. The other end of the shaft 24 is connected by a suitable universal joint 26 to a shaft 21. any suitable length and in any desired number of sections and the forward end portion of said shaft is journaled' on a support 28 which is mounted, for example, on the draw bar 29 of the reaper, Fixed. on the forward end'p'ortion of the shaft 21 is a crank 30 which is adapted to be operated from the seat of the tractor or other power unit. r

Fixed on the shaft 6 of the reel 1 is the usual pulley'3I over which a drive belt 32 is trained, thisbelt being driven by a driving pulley fixed on a shaft, as indicated at 3 I, operatively mount ed on a rearwardly' located portion of the frame. The bracket 3 further includes a pair of substantially U-shaped members 33 which straddle the post I. As illustrated to advantage in Fig. 3 of the drawings, rollers 34 are journaled in, the members 33 and travel on opposite sides of the post I.

The reference numeral 35 designates generally an'automatic tightener for the belt 32. The belt tightener 35 includes a rod or bar 36 of polygonal cross-section having its forward end pivot- The shaft 21 may be of v ally connected to the uppermost member 33 and extending rearwardly therefrom in a direction transverse to the direction of the length'of the upwardly extending post I. The rear end portion of the rod 36 extends slidably through a substantially U-shapedguide 31 which is loosely mounted on the. side wall of the grain'trough'38 of the reaper. A brace, 39 extends from the outer portion of the bracket 3 to the rear end portion of the rod 36. Encircling the rod 36 andadapted to yieldingly urge same forwardly is a coil spring 40. The coil spring 40 is confined under tension between washers 4| and 42 which are slidably mounted on the rod 36. The washer 4| bears against a pin 43 in the rod 36 and the washer 42 bears against the guide 31.

The spring 40 is normally. in compression and urges the abutment washer 42 against the guide 31 and urges the abutment washer 4| against the pin 43 in the rod 36, the spring thus urging" forwardly the rod 36 and the bracket 3 carrying the reel shaft 6, thereby placing the required tension on the driving belt 32. And the rod 36, being pivotally connected to the bracket 3 and ,yieldingly connected to the frame through the spring 40 and theguide 31, thus serves as a reharvester reel constructed. in accordance with vice is as illustrated and described, it is to be the chain 20, thus raising said reel.

* opposite direction;

siliently yieldable' brace for retaining the post I extending upwardly in desired position. Through the connection of the rear end of the brace 39 to the rod 36 at a point rearwardly ofthe guide 31, this portion of the brace 39serves as a projection on the rod 36 to cooperate with the guide 31 and thus limit the forward movement of rod 36 and the bracket 3 and post I, even though the proper tension on the reel drive belt 32.

It is believed that the many advantages of a the present invention willbereadily understood and although apreferred embodiment of the deunderstood" that changes in the details of'construction and in the combination and arrangement of parts maybe resortedto which ,will'fall within the scope of the invention .as claimed.

' What is claimed is: r

1. In a harvesting machine including its. frame and reel shaft, a post pivotally connected to a' part of the frame at its lower end, a bracket, a

tubular bearing carried by the bracket and through which the shaft passes, upper and lower roller carrying members attached to the bracket and through which the post passes with the rollers engaging the post, a movable member carried by the post and connected with the bracket for imparting vertical movement to'the bracket,

means including shafting, having universal joints and slip joints therein, and. gearing for imparting movement to the movable member, means.

for supporting saidshafting from the;frame, drive means for the reel shaft including a pulley thereon-and a driving belt therefor, a bar pivotally connected to one of the roller carrying members, means for slidably supporting the bar (s from the frame spring means associated with said bar for forcing the bar in a certain direction and maintaining said driving belt taut.

2. In a harvesting machine including its frame and a'reel shaft, a post pivotally connected to the frame at its lower end, a bracket, a tubular bearing carried by the bracket and through which said shaft passes, upper and lower roller carrying members attached to said bracket and through I which said post passes with the rollers engaging said post a flexible movable member carried'by said post and connected with said bracket for imparting vertical movement to said bracket, means for" imparting movement to said movable memberto the'rebycause raising and lowering of said bracket and bearing carried thereby, drive means for the reel shaft including a pulley thereon anda driving belt therefor, a bar pivotally connected to one of the roller carrying memb'ers and extending rearwardly therefrom in a direction transverse to the direction of the length of said-post, means for slidably supporting the bartfrom the frame, and spring means associated with said supporting means and said barfor forcing said bar and said bracket and shaft associated therewith in a certain direction and operative to maintain said driving belt taut.

3. In a harvesting machine including a frame having a grain-receiving trough, a harvesting reel having a shaft, a-post-pivotally mounted on a part of the frame and extending upwardly from said pivotal mounting, a bearing bracket movably mounted on said post and capable of being moved up and down along, said post, a tubular bearing carried by said bracket and in which said shaft is rotatably mounted, a movable member carried by said post and connected to said-bracket, means for imparting movement to said bracket through said movable member to cause said bracketto slide along said post to'different vertical positions thereon, drive -means for said reel shaft includinga pulley on the shaft and a-driving belt therefor extending rearwardlyto a driving pulley on the frame, a'brace bar pivotally connected to a portion of saidbracket and extending rearwardly therefrom in direction transverse to the direction of the length of said post, means for slidably supporting said bar from,

the frame, and spring means associated with said bar for forcing the latter and said bracket and shaft in a forward direction, and said spring means being operative through its' association with said bar and said-frame to maintain said driving belt in taut driving relation to the pulley on the reel shaft. 1

'4. In a harvesting machine including-a frame having-a grain trough portion to receive harvested grain, a. harvesting reel includinga shaft,

a post having its lower end pivotally mounted'on aforward portion of said frame, abracket slidably mounted on said post for up and down movement thereon, a tubular bearingcarriedby said bracket and in which said reel shaft is rotatably mounted, a member rotatable 011a substantially horizontal axis and carried by said post above said bracket, means for sliding said bracket alongisaid post, said means including-a flexible operating element connected to said bracket and passing over said rotatable member and operable to lift said bracket, a bar pivotally connected at one end to a portion of said bracket and extend-.

ingrearwardly in a direction transverse to the direction of the length ofysaid post, means for slidably supporting said bar on said grain trough, drive .means for said shaft including a pulley thereon-'and'adriving belt therefor snring means associated with said bar and said supporting means for yieldingly forcing'said bracket and said shaft carried thereby in a forward direction to maintain tautness of said driving belt.

5. In a harvesting machine including a frame, a harvesting reel having a shaft, a post pivotally mounted adjacent its lower end on a forward portion of said frame, a bearing bracket movably mounted on said post for up and down movement thereon, a tubular bearing carried by said bracket and in which said shaft is rotatably mounted, a movable member carried by said post and connected to said bracket, means for imparting movement to said bracket through said movable member to cause said bracket to slide along said post to different positions thereon, a bar pivotally connected to a portion of said bracket and extending rearwardly and transversely of said post, means for slidably supporting a rear end portion of said bar from said frame, spring means associated with said bar for forcing said bracket and shaft carried thereby in a forward direction, and drive means for the shaft including a pulley thereon and a driving belt therefor extending rearwardly therefrom and held taut through the action of said spring means urging said bar in said direction.

6. In a harvesting machine including a frame, a harvesting reel having a shaft, an upwardly extending post mounted on said frame, a bracket, a tubular bearing carried by said bracket and in which said shaft is rotatably supported, said bracket being mounted for sliding movement to different positions along said post, means for imparting sliding movement to said bracket with respect to said post, a bar connected to said bracket and extending rearwardly in a direction transverse to the length of said post, drive means for said shaft including a pulley on said shaft and a driving belt therefor, and means for yieldingly and resiliently supporting the rear end portion of said bar from said frame and operative to yieldingly hold said driving belt in taut driving relation.

7. In a harvesting machine including a frame, a harvesting reel including a shaft, a post having its lower end pivotally mounted on said frame, a bracket slidably mounted for movement along said post and carrying a bearing in which said shaft is rotatably mounted, means including a flexible operating element operatively connected to said bracket for sliding said bracket relative to said post, drive means for said shaft including a pulley thereon and a driving belt therefor, and a. bracing connection between said post and said frame and extending rearwardly from said post and in a direction transverse to the length of said post, said bracing connection. including a resiliently yieldable connection to said frame and being operative to yieldingly urge said post and said shaft in a direction to maintain tautnessof said driving belt.

OTTO L. KONOW.