When specifying countersunk holes in your hinge, you can call them out in a few ways. The most common way it just strictly calling out the flat head screw size you are expecting to use like #6FHS or #8FHS. Every good machinist will know exactly what size hole and countersink to do so that the screw fits flat into the hole. The other way for calling out the countersunk holes is specifying all the dimensions. You would call out the hole diameter A with the countersink angle C or you can call out the countersink diameter B with the countersink angle C. Either way, you’ll automatically get the other dimension that you’re missing strictly by the math. You’re probably thinking that you can also call out all 3 dimensions which you certainly can, but most often it’s just the countersink dimension and angle that is most important so the screw will fit flat on the surface. And certainly, as all good engineers know, the more dimensions that are called out that are dependent on each other, the more risk for them not all coming together depending on the tolerances you’re specifying the dimensions to be held and still holding to the standard hinge production practices. As with most hinges, overkill on dimensioning just leads to higher priced hinges!
I truly love reader submissions, especially odd and unique hinge sightings! And this week’s top Hinge Whisperer sighting submission comes straight out of the brewery! The conveyor belt moving the beer around the brewery packaging area is actually a multi-leaf hinge! Even without stopping in the tasting aisle, I’m sure it could cause a little dizziness just watching this conveyor belt snake it’s way around the brewery, but even from this picture I can spot the distinct hinge leaf features Each section is part of a 3 knuckle construction hinge with a pin running through the knuckles to connect them together. The outside edges are angled so that the leaves could move from left to right as needed to negotiate curves, and rounded edges to flip over and underneath the surface and travel back to the start of the conveyor. It’s definitely a fantastic example of a multi-leaf hinge. Though most are just 3 or maybe 4 leaves, this proves that the possibilities can truly be almost endless for how many leaves you could connect together. Keep those submissions coming!
Every good Hinge Whisperer knows to keep their eyes open everywhere they go for a good sighting and during a good cardio and leg workout the other day was no exception. My eyes as well as my legs were getting a workout looking for good hardware anywhere they could spy it. And sure enough, while doing a grueling exercise on this machine of death, I mean endless stairs, I started wondering how the stairs actually worked as they continuously and endlessly flipped around to keep torturing the user. Then it came to me. So I happily hopped off it and checked the stairs out from the side and there was my sighting! Now this certainly isn’t the normal hinge you’d find, but it is indeed a hinge! Two leaves, the steps, and a connecting pin. That’s the definition of a hinge as we know it. The two panels rotate around the pin creating each step and then refold the other direction to rotate underneath then back around to create the endless suffering, I mean stairs. It just goes to show that almost everything that moves or pivots is on some kind of hinge. So keep your eyes open and you’ll be sure to spot one!
The sky’s the limit or so it seems with this huge length of hinge. At first I thought it was just a joint in the building structure, but upon closer inspection it was indeed a hinge. I could see the distinct knuckles intertwining around the pin with the leaves welded to the frame. Gargantuan! It was at least .50″ thick and it stretched a good 12 feet high. It was challenging even for this Hinge Whisperer to get this much of the hinge length in the shot. You can see how it compares to the door in the background. Truly a sight to behold. It’s almost impossible to think of a hinge being made this big, but with so many new technologies available for hinge production, Guden can offer super long lengths of super thick continuous hinge. Splicing hinge leaves together with multiple pins can make even our longer hinge lengths even longer. So don’t let length stop you now!
Specifying the size and pressure of the gas spring or damper is just part of designing the unit into your application. You also need to decide on how you are going to mount the gas spring to the door or cover and to the base or frame. For gas springs that have a socket end fitting on both ends, they will require some sort of ball mounting hardware.
The most popular is a threaded ball stud that slips through a hole and is nutted from the other side to secure the mount. Sometimes the ball stud can be installed in a threaded hole or a PEM stud as well.
Another method is a flat or angled bracket for when you may not have the room for the ball stud. Brackets also come in various heights for applications that may require a pivot point higher than the mounting surface for a better angle and maximizing the lift of the gas spring.
Gas springs that have blade end fittings are installed over a post of some sort and require less hardware for mounting. Most fit over a rod that is incorporated into the lid and chassis.
You can find more information, drawings, dimensions and options at the Guden website
Our Guden chest handles come in several sizes and shapes to suit just about any trunk or box application. With options for spring loading to keep the grip in the down position, and with or without holes depending on how you want to mount them. And sometimes a handle isn’t just a handle, especially in this situation! This handle is also doubling as a safety lock to make sure the box isn’t rolled away. Convenient and functional in several ways.
I love seeing hinges that have something non-standard about them, and it’s even more interesting for any Hinge Whisperer to see two customizations. But certainly it’s an even bigger bonus when you get to see three, four or even more on the same hinge. This hinge immediately caught my eye because of the 4″ long knuckle joints, which in itself is way special as normally the largest you ever see is a 2″ version. Then the hinge is an unequal leaf version, and the larger leaf is also bent! Upon further inspection I noted with surprise that the end knuckles were both partial knuckles, but they weren’t balanced as they normally would be for both knuckles to not be full knuckles. I’m almost thinking it was a mistake, but who knows. And it doesn’t stop there, because at the top of the hinge, the pin was welded for retention. Whew! But finally, after standing back to take a deep breath at all this hinge splendor, I inspected the circular piece that was welded onto the smaller leaf. Talk about maximizing the amount of customizations! Though I guess they could have added holes or slots, or maybe a part mark, but that many may have been too much to take in all at once for anything less than a master Hinge Whisperer.
I just love this picture of all 4 generations of Guden’s at the helm of our fine company. Charles, his son H.A, grandson Jack and Great grandson Al. It’s a wonderful representation of the family business with family values that we operate to this very day.
This hinge certainly was put to the test! Whomever specified this outdoor application picked the right thickness and pin as they were able to hold up pretty well to the door being pried off. I can see just a bit of warping on the hinge leaf. A thinner hinge may have allowed the aluminum material to unwrap at the knuckles to allow the door to come off, but looks like it was really the fasteners that failed. The door was missing so I can’t really tell if it was metal or plastic, but based on the same press fit rivets on the chassis, I assume it was metal. They might have saved some time for assembly, but maybe using a nut and screw would have made for a more secure application.
We’re all hearing the reports of the our country’s battle with growing wider, but on the bright side, at least getting wider hinges isn’t a national calamity. You can already get up to a 6″ width from stock, depending on the material thickness of course, with even larger widths available on a custom run. Challenge us with a huge width! With our access to several tools, and laser cutting machinery, we should be able to go as wide as you want. And of course the reverse is also true, with stock hinge size open widths on small thicknesses starting at just .50″ wide. Or we can cut down any of our stock sizes to match the width that you want. It’s the easiest diet you’ll ever have to go on to lose a few inches fast.
We have been a leading provider of industrial cabinet and door hardware solutions for over 90 years. Our expansive selection of product offerings includes continuous and butt hinges, slip joint, spring latch and spring loaded hinges, gas springs, dampers, Wagner casters, lid supports, handles, and latches…all available in a wide variety of materials, sizes, and finishes. Our customer service representatives are highly trained, friendly, and ready to work with you. They will quickly guide you through our selection of stock products or help you with your design of custom hardware if your job requires it.