GB2499045A

GB2499045A - Hinge cutting tool

Info

Publication number: GB2499045A
Application number: GB1202007.9A
Authority: GB
Inventors: James Donovan Rule
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-06
Filing date: 2012-02-06
Publication date: 2013-08-07
Anticipated expiration: 2032-02-06
Also published as: GB201202007D0; GB2499045B

Abstract

A tool to assist in the fitting of household door hinges and cupboard hinges, used in conjunction with a power drill. The tool comprises a base (A) that can incorporate a cutter (D) powered from a drill. A sleeve (F) restricts the movement of the cutter and controls the depth of the cut by moving the sleeve up or down to the desired position and then securing it by screwing in the handle (G). The base also has an adjustable guide (B), which sets the tool a defined distance from the edge of the work piece. The guide slides to the desired position and is then held in position by tightening the hand screws (C).

Description

1

Description (1/5)

Background:

This invention relates to fitting butt hinges and cupboard hinges in doors and frames.

When fitting a door, hinges must be fitted to the edge of the door and frame. When using butt hinges, a small section of the wood where the hinge is to be fitted, must be removed to allow the hinge to fit into. This is usually done using a hammer and chisel or an electric router.

This invention, although primarily designed for this operation, could be used in other applications such as fitting kitchen cupboard door hinges.

Statement of inventorship

According to the present invention there is provided a cutting tool for use in cutting into an object, the cutting tool comprising: a base for positioning the cutting tool adjacent to the object, wherein the cutting tool is arranged to hold a cutter such that in use the cutter protrudes from the base for making a cut into the object; a guide for aligning the cutting tool with an edge of the object wherein the position of the guide is adjustable such that in use the distance between the edge of the object and a cut into the object made by the cutter held by the cutting tool is adjustable; and adjustable depth setting means for setting an adjustable limit to the extent to which the cutter held by the cutting tool in use is able to protrude from the base, to thereby set a maximum depth for a cut into the object made by the cutter in use.

In preferred embodiments the cutting tool further comprises the cutter arranged for protruding from the base for making a cut into the object, wherein the cutter is driveable by a drill. In preferred embodiments the cutter is moveable between: (i) a cutting position in which the cutter protrudes from the base by an extent according to said adjustable limit set by the depth setting means, and (ii) a non-cutting position in which the cutter does not protrude from the base. The cutter may be arranged to pass through the base in use in order to cut into the object.

The depth setting means may comprise a sleeve coupled to the cutter which restricts the movement of the cutter to thereby set the limit to the extent to which the cutter is able to protrude from the base. The cutting tool may further comprise coupling means for coupling the sleeve to the cutter, wherein the coupling means allows the sleeve to be coupled at different positions along the cutter to thereby adjust the limit to the extent to which the cutter is able to protrude from the base.

Alternatively, the depth setting means may comprise a double nut locking system coupled to the cutter arranged to adjustably set the limit to the extent to which the cutter is able to protrude from the base.

2

Description (2/5)

In preferred embodiments the guide is shaped to avoid the cutter such that, in use, the guide is able to align the cutting tool with the edge of the object whilst the cutter makes a cut into the edge of the object.

Preferably, the cutter comprises a hexagonal connection such that the cutter is driveable by a handheld, chucked drill.

The cutting tool may further comprise adjustable fixing means for fixing the guide in an adjustable position (e.g. an adjustable position relative to the cutter). In one embodiment the adjustable fixing means comprises screws for fixing the guide in a position, wherein the cutting tool is configured such that loosening the screws allows the position of the guide (e.g. the position of the guide relative to the cutter) to be adjusted.

The guide may protrude from the base by an amount in the range 1mm to 1cm, for example by 5mm. In this way the cutting tool can be used for cutting into a door frame when there is architrave in place.

The object that the cutting tool is used to cut into may be one of: (i) a door, (ii) a door frame, (iii) a cupboard door, and (iv) a cupboard frame.

There are presented below descriptions of specific embodiments of the invention which are not limiting to the scope of the invention.

3

Description (3/5)

Advantages

This will be a quicker and easier method of fitting a hinge than just with a hammer and chisel but hopefully at a lesser cost than an electric router. It is also more manouverable than a router.

Preferably it will also be able to be used on the door frames when there is architrave and door stop without being obstructed by them. This will be due to the design of the base, guide and components.

Preferably the cutter will be a standard hexagon shape at the top of the shaft so that it can be inserted directly into the chuck of the drill or into existing speed fits (shown in Figures 4,5 and 9)

4

Description (4/5)

Introduction to Drawings

My invention is a tool that is used to assist in the removal of areas of wood when fitting hinges for a door.

Examples of the invention will now be described by referring to the accompanying drawings.

Figure 1 shows a diagram of a typical butt hinge.

Figure 2 shows a diagram of an edge of a door with the necessary area of wood that must be removed to fit a butt hinge.

Figure 3 is a diagram to illustrate how the tool is used.

(I) shows the area in the edge of a door the tool will assist in removing.

(H) shows a diagram of the tool.

(J) shows a diagram of a chucked drill.

Figure 4 shows a diagram of the tool including its main features.

(A)- shows the base.

(B)- shows the guide.

(C)- shows the hand screws that are used to adjust the distance of the guide.

(D)- shows the cutter.

(E)- shows the top part of the cutter shaft that is a standard hexagon design that can be attached to existing speed fits or directly into the chuck.

(F)- shows the sleeve that the cutter is incorporated into which can be adjusted to set a depth for the cutter.

(G)- shows the handle that screws in to fix the sleeve in the desired position.

5

Description (5/5)

Introduction to Drawings (continued)

Figure 5 shows an example of how the tool could be designed.

(A) shows the base.

(B) shows the guide.

(C) shows the hand screws that are used to fix the guide in the desired position.

(D) shows the cutter.

(E) shows the top of the shaft of the cutter that is in a standard hexagon design that can fit into an existing speed fit or directly into the chuck of a drill.

(F) shows the sleeve that slides up and down within the base to adjust the depth of the cutter.

(G) shows the handle that screws in against the sleeve to hold it in the desired position.

Figure 6 shows another example of how the tool could be designed.

shows the base.

(D) shows the cutter.

(F) shows a double nut locking system that is to adjust the depth of the cutter.

(H) shows bearings inside the base that incorporate the cutter.

(B) shows the guide which is designed so it can be adjusted in passed the edge of the cutter.

(C) shows screws that can be hand tightened to adjust the guide.

Figure 7 shows different examples of cutters that could be used but not limiting my claim to be used with these designs.

Figure 8 shows a section removed in a door to fit a cupboard door hinge that the tool could also be used for.

Figure 9 shows a computer aided design of the tool.

(E) shows the hexagon top part of the cutter that is possible to be used directly in a chuck or speed fit to drive the cutter.

(F) shows a sleeve that is used to adjust cutting depth. Its able to be moved up or down and fixed in position by a threaded handle(G) that can be tightened onto the sleeve which in turn restricts movement of the cutter(D).

(G) shows a handle which is for added control and in this case is also used for holding the sleeve(F) in the desired position.

(B) shows the guide which is used to adjust the distance in from the edge of an object the tool positions the cutter. It is design in such a way that it can pass the cutter(D) to give a broader option of desired positions for the user.

(A) shows the base which incorporates the other components.

(C) shows the hand screws that are used to hold the guide(B) in the desired position by the user being able to tighten them onto parts of the guide(B) running through the base(A).

(D) shows a type of cutter that could be used with the tool.

6

Claims

1. A cutting tool for use in cutting into an object, the cutting tool comprising:

a base for positioning the cutting tool adjacent to the object, wherein the cutting tool is arranged to hold a cutter such that in use the cutter protrudes from the base for making a cut into the object;

a guide for aligning the cutting tool with an edge of the object wherein the position of the guide is adjustable such that in use the distance between the edge of the object and a cut into the object made by the cutter held by the cutting tool is adjustable; and adjustable depth setting means for setting an adjustable limit to the extent to which the cutter held by the cutting tool in use is able to protrude from the base, to thereby set a maximum depth for a cut into the object made by the cutter in use.

2. The cutting tool of claim 1 further comprising the cutter arranged for protruding from the base for making a cut into the object, wherein the cutter is driveable by a drill.

3. The cutting tool of claim 2 wherein the cutter is moveable between: (i) a cutting position in which the cutter protrudes from the base by an extent according to said adjustable limit set by the depth setting means, and (ii) a non-cutting position in which the cutter does not protrude from the base.

4. The cutting tool of claim 2 or 3 wherein the cutter is arranged to pass through the base in use in order to cut into the object.

5. The cutting tool of any of claims 2 to 4 wherein the depth setting means comprises a sleeve coupled to the cutter which restricts the movement of the cutter to thereby set the limit to the extent to which the cutter is able to protrude from the base.

6. The cutting tool of claim 5 further comprising coupling means for coupling the sleeve to the cutter, wherein the coupling means allows the sleeve to be coupled at different positions along the cutter to thereby adjust the limit to the extent to which the cutter is able to protrude from the base.

7. The cutting tool of any of claims 2 to 4 wherein the depth setting means comprises a double nut locking system coupled to the cutter arranged to adjustably set the limit to the extent to which the cutter is able to protrude from the base.

8. The cutting tool of any of claims 2 to 7 wherein the guide is shaped to avoid the cutter such that, in use, the guide is able to align the cutting tool with the edge of the object whilst the cutter makes a cut into the edge of the object.

7

(claims continued)

9. The cutting tool of any of claims 2 to 8 wherein the cutter comprises a hexagonal connection such that the cutter is driveable by a handheld, chucked drill.

10. The cutting tool of any preceding claim further comprising adjustable fixing means for fixing the guide in an adjustable position.

11. The cutting tool of claim 10 wherein the adjustable fixing means comprises screws for fixing the guide in a position, wherein the cutting tool is configured such that loosening the screws allows the position of the guide to be adjusted.

12. The cutting tool of any preceding claim wherein the guide protrudes from the base by an amount in the range 1mm to 1cm.

13. The cutting tool of claim 12 wherein the guide protrudes from the base by 5mm.

14. The cutting tool of any preceding claim wherein the object is one of: (i) a door, (ii) a door frame, (iii) a cupboard door, and (iv) a cupboard frame.

15. A cutting tool substantially as described herein, with reference to the figures.