Daiwa Technology: Monocoque Reel Bodies
In the history of the reel, it was only natural that the housing was a combination of two parts: the body and the body cover. However, when Daiwa launched the MONOCOQUE BODY in 2016, it destroyed this conventional truth. In the monocoque structure, the body itself is a rigid frame, durable to twists and bends, and yet it is space-economizing and compact. Monocoque design technology is used in the likes of rockets and Formula One vehicles, where durability and space efficiency are required under extreme conditions. In the spinning reel, which contains over 150 parts in its small body, the monocoque structure’s impact was truly immense. By eliminating the need for screw space, the drive gear was expanded to its maximum size relative to the dimensions of the body. Now, the body could hold a large-diameter drive gear that covers around 85% of the body’s surface. In other words, bodies of the same size as before were able to house much larger gears, and if the gear size were instead kept the same, then extremely light bodies could be created.
In Daiwa’s monocoque models there is a screw-in side cap to the design which allows for 360 degrees of gear stability. This provides good gear alignment better than a sideplate with multiple screw ports. Reels that have multiple screw port sideplates are designed with material inside the reel for screws to go into so you lose overall space within the frame of the reel unless you make the reel bigger which adds more weight, increase frame movement and can result in loss of rigidity.
“Without adding multiple screw ports and having just one thread-in sidecap we can make the reel smaller but utilize bigger gears. And putting a bigger gear in the reel allows us the same gear ratios as other reels in the industry but with more power and torque and efficiency when turning the handle,” comments Daiwa Field Marketing Manager, Marc Mills.
The other benefit to monocoque technology is a much greater seal. Because the monocoque reel doesn’t have multiple screw ports and it has the thread-in sideplate you get a better seal around those areas. The seal is a lot more efficient for keeping water, contaminants and debris out of the reel. And the more contaminants you keep out of the reel obviously the longer the gears will last, the longer the grease stands up, and the less moisture gets in the reel and there are layers upon layers of that.
Mills adds: “But monocoque technology really allows us to transfer gear power to the reel at the same gear ratios but as a smoother, easier to turn reel than the competition in the marketplace that’s using a regular sideplate. If you think of a standard reel with multiple screw ports in the sideplate and if one is looser than the other stuff starts moving around. Whereas with monocoque you have something that screws in 360 degrees every angle and edge receives the exact same pressure.”
“We’re making monocoque reel bodies in a variety of different materials, from diecast frames to machined frames to Zaion,” says Mills. “It’s pretty much a one-piece frame which allows for us to use a smaller frame but put in a bigger gear. Given that it’s a one-piece frame it makes it rigid and the smaller you can make the frame with the materials makes it even more rigid so it’s a double opportunity for rigidity especially around the gear box and that area.”
Thanks to monocoque, pretty much the whole gear box is a gear. There are no offset little areas or screw ports to take up space. You start taking up a 1/16th of an inch four or five times that’s a lot of material that you’re losing in space. To make up for that you either have to lose a gear or make the reel bigger and heavier. With monocoque, anglers get a reel that is lighter, more rigid, and has more torque and efficiency.
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