Harvesters – Raking and bundling
Reexamination Certificate
1998-05-05
2001-12-11
Will, Thomas B. (Department: 3671)
Harvesters
Raking and bundling
C056S346000
Reexamination Certificate
active
06327840
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to crop pick-ups and more specifically relates to toothbar supports for the reels of baler pick-ups.
Agricultural balers for forming either rectangular or round bales are equipped with a pick-up for conveying windrowed crop towards the baling chamber of the baler. It is common practice to construct these baler pick-ups with a reel having a central support shaft that extends the full working width of the pick-up and has toothbar support spiders or discs fixed to its opposite ends for supporting a plurality of equi-angularly spaced toothbars that extend between and have their opposite ends respectively mounted in the support spiders or discs. U.S. Pat. No. 5,394,682 issued to Frimml et.al on Mar. 7, 1995 discloses a typical pick-up reel.
Balers for making large round or rectangular bales have the capacity to process a large amount of windrowed crop. These windrows are preferably formed as wide as possible so that, in the case of hay crops, the crop can better cure in the windrow, and, in the case of large round balers, may be fed more evenly across the width of the bale so as to form uniform shaped bales. In order to gather the crop from wide windrows, it is the practice to use a pick-up which is wider than the bale being formed. This requires the pick-up reel to have toothbars which are of such a length that they are subject to being deformed during operation as when the baler passes over obstructions or clumps of crop that impose forces on the center of the reel. While such deformation can be somewhat lessened by supporting the toothbars at the middle of their length, such center supports have not been entirely satisfactory due to the fact that they present an obstacle to the mounting of the reel teeth to the center sections of the toothbars which results in a gap between tines of adjacent teeth on opposite sides of the center support which is larger than that desired for consistent good feeding of crop.
SUMMARY OF THE INVENTION
According to the present invention there is provided a crop pick-up reel having an improved center support for the toothbars.
An object of the invention is to provide a crop pick-up having a reel with a center support and toothbar arrangement which results in even spacing of the tines of the teeth carried by the toothbars.
A more specific object of the invention is to provide a center support and toothbar arrangement, as set forth in the preceding object, wherein the opposite sides of the center support is designed for supporting the inner ends of short toothbars that extend only halfway across the working width of the pick-up, the mountings afforded by the support resulting in the toothbars on one side of the support being angularly offset relative to the toothbars on the other side of the support.
These and other objects of the invention will become apparent from a reading of the ensuing description together with the appended drawings.
REFERENCES:
patent: 1725745 (1929-08-01), Bauer
patent: 1877519 (1932-09-01), MacGregor
patent: 1939385 (1933-12-01), Burr
patent: 3478500 (1969-11-01), Rhoads
patent: 3724183 (1973-04-01), Hurlburt
patent: 3851450 (1974-12-01), Nelson
patent: 4068454 (1978-01-01), Webb
patent: 4187666 (1980-02-01), Mcllwain
patent: 4604859 (1986-08-01), Sasaki et al.
patent: 4928462 (1990-05-01), Lippens et al.
patent: 5394682 (1995-03-01), Frimml et al.
John Deere Parts Catalog No. PC-1915 for Models 430 and 530 Round Balers dated, Nov. 19,1982 (Cover page and page 47).
John Deere Parts Catalog No. PC 2562 for Model 100 Sqare Baler, dated Feb. 1997. (Cover page and page 48).
Deere & Company
Petravick Meredith C.
Will Thomas B.
LandOfFree
Toothbar and toothbar center support arrangement for baler... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toothbar and toothbar center support arrangement for baler..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toothbar and toothbar center support arrangement for baler... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2592217