Understanding the Types of Joints in Action Figures
Dinosaur action figures are beloved collectables that serve as miniature recreations of prehistoric creatures that you can display. The types of joints a figure uses determine how it moves, how dynamic its poses can be, and how long it lasts. We’ll teach you the different types of joints used in action figures.
Swivel Joint
A swivel joint is a simple rotating peg that only moves right to left or up and down, depending on the placement in the figure. Some of the most common placements for this type of joint include the neck, legs, and tail, since users may only move these areas one way.
Many action figure makers use swivel joints because they’re inexpensive yet durable, allowing them to make quality action figures at a fair price. However, this joint can make the figure appear stiffer since there are fewer options for adjusting poses.
Hinge Joint
Hinge joints are a one-axis bending joint that bend back and forth to mimic the movement of a real joint. Its name comes from the fact that the hinge opens and closes like a door. On dinosaur action figures, we often see this type of hinge on the jaw so users can open and shut it during play or while showing the figure off.
While hinge joints are durable and make it easier to adjust a figure, they have a minimal range of motion, which can hinder creativity. However, some makers get around this by using a double hinge or only using hinge joints in specific areas, such as the jaw.
Double Joint
Double joints are one of the most popular options used in the knees and forelimbs of bipedal dinosaur figures. This type of hinge allows the user to pose the dinosaur in various realistic ways—it can crouch, do a running stride, or appear ready to lunge.
While double joints allow for extra articulation, they can also create visible gaps or pin marks in the figure. Over time, these joints can wear out if the figure is mishandled and becomes overstressed. Despite these drawbacks, double joints remain a favorite among collectors for the dynamic, lifelike poses they make possible.
Ball Joint
A ball joint is another beloved joint type used in action figures thanks to its wide range of motion. This type of joint features a rounded ball that fits into a socket, allowing users to rotate and tilt the entire joint. Many action figure manufacturers use this joint in areas including:
- Limbs
- Hips
- Neck
Using a ball joint in these areas allows the figure to have a natural range of motion when posed. Ball joints enhance the lifelike feel of a dinosaur action figure, but they can loosen over time, and poorly made figures may have joints that pop out of the socket.
Ab Crunch Joint
An ab crunch joint is located in the midsection of an action figure and allows the figure to tilt back and forth or side to side. For example, a manufacturer may place an ab-crunch joint on the chest or torso of a bipedal dinosaur so that users can lean it forward and make it appear to be running. You generally will not see this type of joint in a quadrupedal, horizontal dinosaur, such as a Triceratops, since they likely did not move their bodies that way.
Moreover, ab crunch joints can help improve the balance and pose stability of action figures. When a dinosaur steps forward or raises one foot, torso movement helps counterbalance the pose, rather than leaving the figure rigid and upright. Designers usually keep motion subtle so the body still looks natural, since excessive bending can disrupt the figure across the ribs or scales, making the dinosaur look unrealistic.
What To Look for in Dinosaur Action Figures
Range of Motion
A figure’s range of motion determines how many different poses you can achieve, which affects both play and display. The more limited the range of motion, the stiffer the figure appears, eliminating lifelike qualities.
Specific joints like ball joints, ab crunches, and double hinges offer the most flexibility because they allow limbs, heads, and torsos to rotate, tilt, and bend in multiple directions. Users can recreate running, lunging, or roaring poses with the figure.
Shopping Tip
If you buy online, look through available photos of the figure(s) and read the product description(s) to determine how much you can move the joints. Pay attention to close-ups of the knees, elbows, hips, and tail, and check if the description mentions ball joints, double hinges, or ab crunch joints.
Durability
A dinosaur figure’s durability is just as important as how well it moves. Even if a figure has an excellent range of motion, weak or poorly constructed joints can loosen or break over time, making it frustrating to display or play with.
Look for figures with strong materials and carefully engineered joints, such as reinforced hinges, secure ball joints, and well-fitted double hinges. These design features help the figure hold poses repeatedly without stress or damage, ensuring it lasts longer while still offering dynamic, action-ready stances.
Realism
When you buy a dinosaur action figure, you want it to look as close to the actual creature as possible. The right brand creates figures that are anatomically and proportionally accurate, based on scientific facts.
When it comes to joints, this often means looking for figures with ball joints, ab crunch joints, and double hinges. These all contribute to realism by allowing the body, limbs, and head to move in ways that mimic natural motion. Avoid figures with overly loose or poorly engineered joints, as this can make poses look loose or unnatural.
Pose Stability
Action figures are special because, unlike models, you can adjust their appearance from a fighting stance to a docile one. However, adjustability doesn’t always mean quality. When you shop for figures, evaluate pose stability based on joint alignment, hold weight, and balance. If the joints are too weak, the figure will topple whenever you adjust it.
Generally, double-hinge joints and ball joints in the legs provide the most stability because they allow the limbs to bend into a crouched position.
Buy Quality Figures
Whether you’re a collector or just looking for a fun display piece, quality joints enhance a figure. Creative Beast Studio makes high-quality, accurate dinosaur action figures that are perfect for dinosaur lovers of all ages. Our Beasts of the Mesozoic Collection includes numerous types of dinosaurs that you can pose in many ways. The right joints bring dinosaur action figures to life, letting them roar, lunge, and move like real prehistoric beasts.
