Trim attachment system

Wood trim apparatus, which includes a trim-mounting spline-strip (150) for attaching the wood trim (176) to a wall, around doors and windows, baseboards, corner mouldings, or the like, wherein:

• the spline-strip is of plastic, and is elongate, and comprises a unitary structure having the same cross-sectional profile at all points along its length;
• the cross-sectional profile of the plastic spline-strip includes a base or web (152), which is adapted for direct application to a flat surface of a wall;
• the cross-sectional profile of the plastic spline-strip includes a spline (154), which, when the spline-strip is applied to a, wall, protrudes from the wall;
• characterised in that the spline includes left and right side-wall components (156;238), a roof component (232), and a floor component, of the spline;
• in that the components of the spline are arranged to form a hollow box-shaped enclosure;
• in that the side-wall components protrude outwards away from the base or web, and the floor component of the spline comprises a portion of the base or web which extends between the side walls;
• in that the apparatus includes two of the spline-strips, and a corner piece;
• and in that the corner piece is profiled to fit snugly inside the hollow interiors of the splines of the spline-strips, and is so shaped that, when placed in the hollow interiors of the two spline-strips arranged in a 90-degree mitred corner, the corner-piece is effective to hold and constrain the spline-strips in the said mitred corner against relative movement.

Wood trim apparatus, which includes a trim-mounting spline-strip (150) for attaching the wood trim (176) to a wall, around doors and windows, baseboards corner mouldings, or the like, wherein:

• the spline-strip is of plastic, and is elongate, and comprises a unitary structure having the same cross-sectional profile at all points along its length;
• the cross-sectional profile of the plastic spline-strip includes a base or web (152), which is adapted for direct application to a flat surface of a wall;
• the cross-sectional profile of the plastic spline-strip includes a spline (154), which, when the spline-strip is applied to a wall, protrudes from the wall;
• characterised in that the spline includes left and right side-wall components (156;238), a roof component (232), and a floor component, of the spline;
• in that the components of the spline are arranged to form a hollow box-shaped enclosure;
• in that the side-wall components protrude outwards away from the base or web, and the floor component of the spline comprises a portion of the base or web which extends between the side walls;
• in that the apparatus includes two of the spline-strips, and a corner piece;
• and in that the two spline-strips are welded together into a corner assembly, having the form of a 90-degree mitred corner.

Wood trim apparatus, which includes a trim-mounting spline-strip (150) for attaching the wood trim (176) to a wall, around doors and windows, baseboards, corner mouldings, or the like, wherein:

• the spline-strip is of plastic, and is elongate, and comprises a unitary structure having the same cross-sectional profile at all points along its length;
• the cross-sectional profile of the plastic spline-strip includes a base or web (152), which is adapted for direct application to a flat surface of a wall;
• the cross-sectional profile of the plastic spline-strip includes a spline (154), which, when the spline-strip is applied to a wall, protrudes from the wall;
• characterised in that the spline includes left and right side-wall components (156;238), a roof component (232), and a floor component, of the spline;
• in that the components of the spline are arranged to form a hollow box-shaped enclosure;
• in that the side-wall components protrude outwards away from the base or web, and the floor component of the spline comprises a portion of the base or web which extends between the side walls;
• in that the spline-strip includes a protruding rib, which, when the spline-strip is applied to a wall, protrudes from the wall;
• in that the protruding rib is resilient in the direction defined by the plane of the cross-section and the plane of the wall;
• and in that the spline-strip includes a protruding bar, which, when the spline-strip is applied to a wall, protrudes inwards, into the plane of the wall, and wherein, in cross-sectional profile of the spline-strip, the hollow spline lies towards one end of the base or web, the bar lies towards the other end of the base or web, and the rib lies intermediate therebetween and closer to the bar than to the spline.