Multi-Functional Adjustable Roller Skate Knife Rest

The problem

Most roller skates are built for a single purpose. A user who wants to practice aggressive tricks cannot easily switch to casual cruising without changing skates entirely. Existing adjustable frames often require tools like Allen keys or screwdrivers to modify wheel positions, making quick changes difficult during a session. Furthermore, standard frames do not allow for the subtle angular adjustments needed to shift weight distribution between different skating styles, leading to discomfort or poor performance when trying to adapt one skate for multiple uses.

The solution

1. A shoe body (1) is mounted to a tool holder body (2) located at the bottom.
2. The connection is managed by a central mounting assembly (5) consisting of arc-shaped ears pinned together, allowing the frame to pivot.
3. Adjusting screw rods (3) run through the left and right ends of the tool holder body, secured by wing nuts (4). Turning these nuts manually adjusts the tilt angle of the entire frame.
4. The bottom of the tool holder body holds a fixed fast pulley (6) at the front.
5. Behind it, a first regulating wheel (9) and a second regulating wheel (7) are positioned. Their vertical position is controlled by a height adjustment device (8).
6. This device uses a drift bolt screw rod (81) with a hexagonal socket nut (82) and a rotating wheel (83) at the bottom, allowing users to raise or lower each rear wheel independently by hand.

Who it is for

• Inline skate brands looking to offer versatile entry-level models that appeal to beginners wanting to try different styles.
• Rental fleet operators who need durable skates that can be quickly adjusted between users with varying skill levels and preferences.
• Recreational sports retailers selling all-in-one skates for families where members have different skating interests.
• Custom skate builders seeking modular chassis designs that simplify the creation of multi-purpose skates.

How it works

The main parts

Operating steps

1. Select Mode: Decide whether to use Sneaker, Leisure, or Flat Floral configuration.
2. Adjust Height: Rotate the rotating wheel (83) on the height adjustment device (8). This moves the drift bolt screw rod (81) up or down, raising or lowering the first (9) or second (7) regulating wheel.
3. Adjust Tilt: Turn the wing nuts (4) on the adjusting screw rods (3). Tightening one side while loosening the other pivots the tool holder body (2) on the mounting assembly (5), changing the frame’s lean.
4. Lock Position: The threads and friction in the screw mechanisms hold the settings in place without additional locking hardware.

Applications

Sneaker Style Skating

For users who prefer an inline-skate feel with boots, the first and second regulating wheels are raised so they align horizontally with the fast pulley. The wing nuts are adjusted to tilt the frame slightly forward, mimicking the stance of athletic sneakers for better balance during active movement.

Leisure Cruising

When switching to casual riding, the rear wheels are lowered to sit on the same plane as the front wheel, creating a stable four-point contact. The adjusting screws are tightened to level the tool holder body completely horizontal, ensuring smooth rolling on flat surfaces without the forward lean used in active skating.

Flat Floral Trick Patterns

For specific trick maneuvers, the second regulating wheel is raised off the ground entirely, while the first wheel remains aligned with the front pulley. The frame is then tilted to the left using the wing nuts, shifting the center of gravity to support lateral movements and spins common in artistic or street skating routines.

Where it is less suitable

• High-speed racing: The mechanical complexity and potential play in the adjustment threads may introduce instability at very high velocities compared to rigid, fixed-frame speed skates.
• Extreme impact jumps: The reliance on threaded connections for structural integrity suggests this design is optimized for recreational versatility rather than heavy-duty downhill or vert ramp impacts.
• Children’s learning skates: The multiple adjustment points might be too complex for young children to manage independently, potentially leading to improper setup if unsupervised.