The present invention relates to a tool that is used in the construction of frames.
For purposes of this description, a frame is a structure having multiple members that are fitted together and united. In constructing frames, attachment of the individual members to one another, by welding or similar means, often requires the use of clamps or vises. Even when using such clamps, it is often difficult to secure adjacent members at precise angles.
For example, in manufacturing awnings, a fabric cover is fit over a frame typically formed by a segments of metal tubing. These frames may define a simple rectangular volume or a complex geometric volume. In constructing such a frame, each individual member is ordinarily attached to adjacent members by a weld. Clamps are commonly used to secure adjacent members at the proper angle and orientation for welding. However it is still difficult to secure adjacent members at precise angles using clamps. When more than two members meet at a joint, it becomes even more difficult to secure the members at the proper angle and orientation for welding. A series of welds is often needed to secure a joint uniting more than two members. In short, construction of these awning frames is often difficult and time-consuming.
It is thus an object of the present invention to provide a tool that facilitates the securing and welding of frame members at precise angles and orientations.
It is a further object of the present invention to provide a tool that allows a single weld to be used to secure three or more members at a joint.
It is still a further object of the present invention to provide a tool that is easy to use, even in construction of complex frame structures, such as those used in the manufacture of awnings.