A METHOD TO FIX A WIRE KNOB TO A SUPPORT, A WIRE KNOB, AND THE USE OF A WIRE KNOB

Abstract: A knob (11, 14, 20) made of a coiled wire has its one end (12) cylindrically coiled so that it can be used as an internally threaded end that is screwed onto a non-threaded cylindrical support (13, 16, 23). It can be removed by being pulled while being turned in the same direction as when mounted. The knob can be used as decorative ends of a curtain rod (13). If a cylindrical support (16) is secured to the wall behind a curtain by being screwed to the wall, a wire knob can be screwed onto the support (16) to form a curtain tie back itself or to be a support for a curtain tie back (20-23). The support (16) and knob (14) can for example also be used as a door knob.

Description: A method to fix a wire knob to a support, a wire knob, and the use of a wire knob. This invention relates to a method to fix a wire knob to a knob support. It also relates to a wire knob and the use of a wire knob and to a method of making up a curtain rod. It is an object of the invention to make possible the simple mounting and dismounting of wire knobs that are decorative and non-expensive. The invention will be described with reference to the accompanying drawings that show three embodiments of the invention. Fig 1 is a side view of a knob. Figs 2 and 3 show in side views two elements which form together a knob. Fig 4 show one end of a curtain tie back. In Fig 1, a knob 11 is shown which is made of a wire that iε coiled. For most uses the wire should be comparatively stiff and springy. In a coiling machine, the coil can be given almost any desirable decorative form and the machine set time is short. Thus, various knobs can be made in a single inexpensive machine and new forms can be introduced without any delay. One end, the end 12, of the knob 11 is substantially cylindrical. This end 12 forms thus a thread that can be screwed onto a substantially cylindrical end 13 of an element that can for example be a curtain rod. The curtain rod can for example be a metal tube or a wooden rod and the knobs form decorative ends of the curtan rod. The end 13 has no threads and its diameter is slightly smaller than the inner diameter of the coil end 12. The coil end expands when it is screwed onto the end 13 of the rod and it becomes stuck by its spring action and the resulting friction CONFIRMATION COPY forces. One can easily remove the knob by turning it in the same direction as when it was mounted and simultaneously pulling it off. It would not be possible to screw the knob off if the rod end 13 would have threads cooperating with the coil since the coil would tigthen and the friction forces increase if one tries to screw the knob off. The knob would be self-locking. In Figure 2, a knob 14 is shown which has another design as compared to the knob 11 on Fig 1. It is however made in the same way and it has a cylindrical portion 12 as has the knob in Fig 1. Figure 3 shows a support 16 for the knob 14 in Figure 2. The outer diameter of the cylindrical support 16 is slightly larger than the inner diameter of the cylindrical portion 12. The support 16 has an axial hole 18. The support 16 can be fixed to a surface for instance a door or a wall by a screw extending through the support. The knob 14 can then be screwed onto the fixed support 16 and it will be firmly held on the support by friction, but it can still be removed in the same way as the knob in Figure 1. In Figure 4, one end of a curtain tie back is shown. A wire- coil knob 20 of the kind described has a taper end 21. First, a loop 22 of a thin rope has been inserted into the knob and it has a knot that is stuck in the knob whereas the loop extends out of the knob. Then, the knob has been screwed onto a piece of rope 23 and an identical knob has been screwed onto the other end of the rope. The rope ends are secured by an adhesive tape or the like tightly engaged thereabout before the knobs are screwed onto the ends. The curtain tie back can be freely laid over a knob fixed to the wall and this knob can advantageously be of the kind shown in Figure 2. The weight of the knobs at the ends of the tie back holds the tie back and the curtain in place. Any decorative element, for example a silk bunch or the like, can be used instead of the loop 22. The knob shown in Figure 2 can be made longer and form a curtain tie back by itself. The knob 20 in Figure 4 can alεo be used aε an end of a curtain rod and be furnished with a decorative silk bunch or the like.

Claims: Cl ai ms 1. A method to fix a wire-coil knob (11,14,20) to a knob support (13,16,23), characterized in that a substantially cylindrical portion (12,20) of the coil is screwed onto a substantially cylindrical portion (15,16,23) of the support, which has no threads on it, so that the knob (11,14,20) is held by friction on the support. 2. A method of making up a curtain rod, characterized in that wire-coil knobs (11) are screwed onto unthreaded ends (15) of a rod (13). 3. A knob comprising a wire-coil knob proper (14) and a support (16) for the knob proper arranged to be fixed to a surface, characterized in that said support has a non-threaded substantially cylindrical portion with a diameter sligthly smaller than the inner diameter of a substantially cylindrical portion (12) of the wire coil so as to permit for the cylindrical portion of the wire coil to be screwed onto the cylindrical portion of the support (16) and be held by friction. 4. The use of a knob according to claim 3 as a knob for doors. 5. The use of a knob according to claim 3 as a support for a curtain tie back.

Inventors: SCHOERLING STEFAN, SCHOERLING, STEFAN
Applicants: SCHOERLING STEFAN, SCHOERLING, STEFAN
Application year: 1995
Main classification: A47H1
IPC codes: A47H1, D04D1