Adaptive Ratchet Clamp Jaw for Angled Wood Surfaces

Solution Overview

Problem

Conventional ratchet woodworking clamps struggle to securely clamp wooden plates with large inclination angles or special shapes due to limited adaptability, leading to insufficient clamping force and potential damage.

Innovation Solution

A ratchet woodworking clamp with a universal adaptive clamp jaw featuring a semi-spherical or spherical groove and convex structure allows the clamp jaw to rotate freely in any direction, combined with a clamp jaw pad and reinforcing ribs, enabling it to adapt to various angled surfaces without axial constraints.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional clamp jaw design is used, then the clamp structure is simple, but the clamp cannot adapt to large inclination angles or special-shaped wooden plates, resulting in insufficient clamping force

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clamp jaw incorporates a spherical head design that allows rotation in multiple directions, enabling automatic adaptation to inclined surfaces. The spherical geometry provides 360-degree rotational freedom, allowing the clamp jaw to orient itself perpendicular to any surface angle without requiring complex adjustable mechanisms.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The clamp jaw is designed with dynamic rotational capability, allowing it to rotate freely around the clamp body axis. This dynamic adjustment enables the clamp to adapt to various inclination angles and surface orientations, transforming a static clamp design into a dynamically adjustable one that maintains optimal clamping contact.

Inventive Principle:
Principle #15Dynamics

2Reliability

If over clamping force is applied to ensure firm clamping, then the clamping reliability improves, but the surface of the wooden plate may be damaged or the plate may slip out

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The spherical clamp jaw design naturally distributes clamping force evenly across the contact surface, preventing concentration of force at single points. This geometric configuration ensures that clamping pressure is optimally distributed, maintaining reliable clamping while preventing surface damage or slippage.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The clamp jaw automatically adjusts its orientation and contact point based on the surface geometry, eliminating the need for manual adjustment. The spherical design self-adapts to the clamped object's shape and angle, ensuring optimal clamping contact and force distribution without requiring operator intervention to prevent damage.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the clamp jaw is constrained to a fixed angle range, then the device complexity is reduced, but the clamp cannot adapt to wooden plates with large inclination angles

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The spherical clamp jaw design eliminates the need for complex angular adjustment mechanisms by using pure geometric adaptability. The spherical geometry inherently provides unlimited rotational freedom in any direction, allowing the clamp to adapt to any inclination angle without requiring motors, sensors, or control systems.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The clamp system is segmented into a fixed clamp body and a movable spherical clamp jaw, allowing independent rotation of the clamp jaw relative to the clamp body. This segmentation enables the clamp jaw to rotate freely in any direction while keeping the main clamp structure simple and stable.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20230219196A1Ratchet woodworking clamp with universal adaptive clamping block
Publication Date: 2023.07.13
  • US20230219196A1 patent drawing
  • US20230219196A1 patent drawing
  • US20230219196A1 patent drawing

AI summary

A ratchet woodworking clamp with a universal adaptive clamping block includes a fixed clamp arm and a movable clamp arm, the fixed clamp arm and the movable clamp arm being both provided with an arc-shaped notch, and the arc-shaped notch being matched and connected with a movable connecting member, wherein a middle portion of the arc-shaped notch is provided with a semi-spherical or spherical groove recessed inwardly, one side of the movable connecting member is a circular connecting end, which is in matched connection with the arc-shaped notch, and the circular connecting end is provided with a spherical or semi-spherical convex structure in an inward direction, which is matched and connected with the groove in the middle portion of the arc-shaped notch.