Device for emptying backhoe bucket

   / Device for emptying backhoe bucket
  • Thread Starter
#21  
[FONT=&quot]Thanks BX Tex,
I followed your suggestion and looked into [/FONT][FONT=&quot]FreePatentsOnline[/FONT][FONT=&quot] which was a goldmine! [/FONT][FONT=&quot]:)
I found several interesting patents:
SELF-CLEANING BACK HOE. US3630396 as suggested by kthompson
Mechanical cleaner for dragline buckets and the like. US2501489
Belt ejector bucket and control linkage therefore. US3349934
as suggested by bearmtnmartin
Backhoe bucket construction. US3380604
as suggested by Grrr
You can probably find more in this place![/FONT]
 

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  • US3380604.pdf
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   / Device for emptying backhoe bucket #22  
2 things I can suggest for wet clay 1 is a poly liner like we use in our dump trucks nothing sticks to it and the load will shoot out. I worked for an outfit running a tractor pulling 2 pans in gumbo. they were dump bowl reynolds and every day we had the take nd xcavator and dig out the residual. Then we weled in a lip to slip som poly liner under and it would almost fly out. Ive added it to my mini ex bucket working on the lake but have to replace it after demo jobs in rock. The other that works good is to make a clay spade. thats a bucket with a long bottom and almost no sides. the sides are about 2 inches high like a cribbing bucket. Ive used one of these to in fact I made one if I can ever get it back from the friend that borrowed it. I copied mine from a UK site.
 
   / Device for emptying backhoe bucket #23  
2 things I can suggest for wet clay 1 is a poly liner like we use in our dump trucks nothing sticks to it and the load will shoot out. I worked for an outfit running a tractor pulling 2 pans in gumbo. they were dump bowl reynolds and every day we had the take nd xcavator and dig out the residual. Then we weled in a lip to slip som poly liner under and it would almost fly out. Ive added it to my mini ex bucket working on the lake but have to replace it after demo jobs in rock. The other that works good is to make a clay spade. thats a bucket with a long bottom and almost no sides. the sides are about 2 inches high like a cribbing bucket. Ive used one of these to in fact I made one if I can ever get it back from the friend that borrowed it. I copied mine from a UK site.

I am wondering if getting a small amount of the fairly expensive poly liner, to test it on a small bucket, could be a problem?

The open sided bucket your referring to was previously posted as a "banana bucket" in the "ejector bucket design" thread. I felt that it would
difficult to fabricate it at home, without the ability to temper the steel.

The patents listed by the previous poster are generally very old, this at least suggests that since they never became the solution, they may not have been completely effective.
 
   / Device for emptying backhoe bucket #24  
I like the chains idea, maybe 3/8 welded front and back with enough slack to go all the way to the back surface.
Nobody mentioned the drainage holes, which I assume also go some way towards relieving suction.
All hoe buckets DO HAVE the drainage/suction relief holes - right ?


I also like the chain idea may give it a try, I think I have an old set of garden tractor chains lying around somewhere.

To answer you question, NOPE my bucket is hole less. I was wondering if holes would help, sounds like they won't
 
   / Device for emptying backhoe bucket #25  
I like Google patent search.
Google Patents

There was an old post here on TBN where someone made one like this except the back plate was simply fixed to the dipper stick:
SELF-CLEANING BACKHOE BUCKET - Google Patent Search

I cant find the post. I think it also showed some "bananna buckets" that had minimal side plates.

Here is another arrangement where the bucket does not need to be circular about the pivot point:
SELF-CLEANING BUCKET ARRANGEMENT FOR ... - Google Patent Search
I had trouble with Volp's links. Here is his 4th patent which seems to be the original fixed back cleanout:
http://www.google.com/patents/about?id=FhxSAAAAEBAJ&dq=3380604
 
   / Device for emptying backhoe bucket #26  
I have seen buckets where the back side of the bucket was more narrow that the front of the bucket, specifically to allow the material that tended to stick in the regular bucket to slide out. If the material has the ability to stick together, like clay, maybe a hole in the back of the bucket would let air in to break the vacuum that is holding the material in the bucket. Perhaps even a spring loaded bucket plate would give some push for the material to eject. The dead weight would hold the spring loaded plate back/compressed until the bucket was tipped up, and the dead weight would reverse, and the additional push of the spring loaded plate would be enough to push the material out of the bucket.
 
   / Device for emptying backhoe bucket
  • Thread Starter
#28  
Here is a picture of the "banana bucket" or "clay spade" as they call it in England. The picture is from the company Digbits
 

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   / Device for emptying backhoe bucket #29  
I keep thinking of in-flight wing de-icing, but that's done with air pressure and rubber bladders. A few quick inflate-deflate cycles should make the goo let go. Probably too delicate for anything but soft clay.

I guess the most practical way to would be for the bottom of the bucket to gape open, like a 5 way. It would take an extra cylinder, but would be worth it.

Meanwhile, keep a sharpshooter in the cab. It's much easier on the machine than shaking and banging.
 
   / Device for emptying backhoe bucket #30  
I found that chains in the bucket work plus I spray the bucket with diesel before I get start wet it down.

A friend of mine with his own rubber tire hoe uses HCMSW which is a type of plastic used in Saw Mills that chains run on. It is a wear resistant plastic when it gets wet it is extremely slippery. Nothing sticks to it.
 

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