Wanted : Name of Double Acting Mechanism

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design-engineer Power-User Join Date: Jun 2007 Location: Windsor UK Posts: 103 Good Answers: 1	Wanted : Name of Double Acting Mechanism 06/12/2008 7:55 AM
	Hi folks, Does anyone know the name of the mechanism used on some printers/copiers that expands both paper guides when you pull/push either of the guides. I reckon it's just two sets of rack teeth on opposite sides of the same spur gear, but I can't get to the mechanism without breaking my printer. I have also seen small gift boxes, with drawers on either end - When you open one drawer, the other drawer opens simultaneously. Is this the same mechanism ? Does anyone know the name of the mechanism ? Cheers, DE __________________ Those who believe in telekinetics, raise my hand - Kurt Vonnegut
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user-deleted-1105 Guru Join Date: May 2007 Location: Harlow England Posts: 16512 Good Answers: 670	#1 Re: Wanted : Name of Double Acting Mechanism 06/12/2008 8:43 AM
	Hey...know what you mean..you described it fine...but you want a name??? hmmm a push-me-pull-you? The mechanism is doubtless as you described it...not broken your printer yet? And you call yourself an engineer? _{(go into the office next door and break theirs...Kriss made me say that)} _Del __________________ health warning: These posts may contain traces of nut.
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#2 Re: Wanted : Name of Double Acting Mechanism 06/12/2008 9:43 AM
	What, do you mean the tractor feed or pin feed sprockets?? Or are you after the name of the scissor type mechanics that mean you pull one side and both sides move?? __________________ A little knowledge is a dangerous thing - Googling is far worse!
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design-engineer Power-User Join Date: Jun 2007 Location: Windsor UK Posts: 103 Good Answers: 1	#3 In reply to #2 Re: Wanted : Name of Double Acting Mechanism 06/12/2008 11:05 AM
	No, not tractor/pin feed. Sciccor mechanism would be suitable, but would take up lots of space. DE __________________ Those who believe in telekinetics, raise my hand - Kurt Vonnegut
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Anonymous Poster	#4 In reply to #3 Re: Wanted : Name of Double Acting Mechanism 06/12/2008 11:17 AM
	On Rolling Mill Side Guides that are used to center the billet, they use a Rack Gear on both side guides and a Pinion Gear between them. As Hydraulic Cylinders push or pull the Side Guides the Rack Gears running against opposite sides of the Pinion Gear between them assure synchronized movement and keep the billet in the center of the Mill.
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ozzb Guru Join Date: Mar 2007 Location: Rosedale, Maryland USA Posts: 5197 Good Answers: 266	#5 Re: Wanted : Name of Double Acting Mechanism 06/12/2008 5:19 PM
	I have several of those on dies. Two racks with idle spur gears between them. They are used to center the part in the die. How about centering device because thats all I've ever heard them called from the manufacture. __________________ Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
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ffej Guru Join Date: May 2007 Location: Geelong, Australia Posts: 1084 Good Answers: 54	#6 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 2:08 AM
	Sounds like a variation on the "rack & pinion" theme. __________________ If there's something you don't understand...Then a wizard did it. As heard on "The Simpsons".
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user-deleted-1105 Guru Join Date: May 2007 Location: Harlow England Posts: 16512 Good Answers: 670	#7 In reply to #6 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 2:58 AM
	..Is that by Rackmanniov ? __________________ health warning: These posts may contain traces of nut.
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design-engineer Power-User Join Date: Jun 2007 Location: Windsor UK Posts: 103 Good Answers: 1	#8 In reply to #7 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 6:41 AM
	he he __________________ Those who believe in telekinetics, raise my hand - Kurt Vonnegut
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bob c Guru Join Date: Jul 2007 Location: Fort Lauderdale Florida Posts: 5708 Good Answers: 123	#9 In reply to #7 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 10:05 AM
	The traveling salesperson that sells them...Raconteur. The crew that assembles them...Racketeers. Thank you. Thank you. Thank you. __________________ Bob
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design-engineer Power-User Join Date: Jun 2007 Location: Windsor UK Posts: 103 Good Answers: 1	#10 In reply to #9 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 10:27 AM
	What are they called, I'm racking my brain __________________ Those who believe in telekinetics, raise my hand - Kurt Vonnegut
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#11 In reply to #10 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 10:46 AM
	He's a mental rack.... Although I am pinion my hopes on him... LOL __________________ A little knowledge is a dangerous thing - Googling is far worse!
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Rick@cae Power-User Join Date: Sep 2006 Location: Canada Posts: 435 Good Answers: 4	#12 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 2:34 PM
	Something like this? Available @ Leevalley.com __________________ Handle every stressful situation like a dog. If you can't eat it or play with it, just pee on it and walk away. - unknown.
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bob c Guru Join Date: Jul 2007 Location: Fort Lauderdale Florida Posts: 5708 Good Answers: 123	#13 In reply to #12 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 2:38 PM
	Always interesting things at Leevalley. I love their site. __________________ Bob
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Rick@cae Power-User Join Date: Sep 2006 Location: Canada Posts: 435 Good Answers: 4	#14 In reply to #13 Re: Wanted : Name of Double Acting Mechanism 06/13/2008 2:46 PM
	So do I...They always seem to have some "new" tools coming along. I've bought from them a few times and they have quality stuff at a very decent price (at least when compared to the regular hardware store) __________________ Handle every stressful situation like a dog. If you can't eat it or play with it, just pee on it and walk away. - unknown.
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Users who posted comments:

Anonymous Poster (1); bob c (2); design-engineer (3); Electroman (2); ffej (1); ozzb (1); Rick@cae (2); user-deleted-1105 (2)

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