AU2011200885B2

AU2011200885B2 - Door hinge jig

Info

Publication number: AU2011200885B2
Application number: AU2011200885A
Authority: AU
Inventors: Gerd Koch
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-01
Filing date: 2011-03-01
Publication date: 2016-05-05
Anticipated expiration: 2031-03-01
Also published as: AU2011200885A1

Abstract

C:\NRPortbrlDCC\EJLU492901 1. DOC.1/03/2011 A door hinge jig comprising an elongate body, the elongate body having a plurality of guiding recesses arranged to guide a tool for forming hinge recesses on a door or door 5 frame, the guiding recesses being positioned with mutually fixed spacing to correspond to the desired location of hinge recesses, whereby a plurality of said hinge recesses are able to be formed on the respective door or door frame with the jig mounted at a single location relative to the door or door frame. 30d 30d *. ---36 28-- /,14 30c-- 0 0 0 0 0 - - - - - --- 1 28 -- 36 20 0 20 ----- 30a 30a Figure 1 Figure 2

Description

Regulation 3.2 AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT (ORIGINAL) Name of Applicant: Gerd KOCH Actual Inventor: Gerd KOCH Address for Service: DAVIES COLLISON CAVE, Patent Attorneys, I Nicholson, Melbourne, Victoria 3000. Invention Title: "Door hinge jig" Details of Associated Provisional Application: No: 2010900859 The following statement is a full description of this invention, including the best method of performing it known to us: C\NRPortb1\DCC\EJL\3500101 1.DOC - 1/3/1l H:\ejntenvovm\NRPotbl\DCC\EJL\9949848_.DOC-6/04/2016 DOOR HINGE JIG FIELD OF THE INVENTION 5 The present invention relates to a door hinge jig. More particularly, but not exclusively, the invention relates to a jig for guiding a router to form door hinge recesses. BACKGROUND OF THE INVENTION 10 Hinged doors are hung by measuring and marking a location for each hinge with a pencil and then chiselling out a recess in which the hinge body is received. Care must be taken to ensure that each hinge is measured, marked and chiselled out accurately so that the operation of the door is not impeded. Such a process can be time consuming and prone to error. 15 Also, the act of hanging a door is typically completed by a carpenter at a time when all other jobs for that carpenter are long since complete. As such, the carpenter often must return to the worksite for the specific purpose of hanging doors, making the process inefficient and adding to the cost. 20 Examples of the invention seek to solve, or at least ameliorate, one or more disadvantages of previous methods of locating and fixing door hinges. SUMMARY OF THE INVENTION 25 According to the present invention, there is provided a door hinge jig comprising an elongate body, the elongate body having a plurality of guiding recesses arranged to guide a base plate of a router for forming hinge recesses on a door or door frame, the guiding recesses being positioned with mutually fixed spacing to correspond to the desired location 30 of hinge recesses, whereby a plurality of said hinge recesses are able to be formed on the respective C.WRPonb\CCEL3492901-I DOC-28/02/2011 -2 door or door frame with the jig mounted at a single location relative to the door or door frame. Preferably, the door hinge jig includes a securing means to secure the jig to the door or 5 door frame at said location relative to said door or door frame, at which location each hinge recess is able to be formed on the respective door or door frame. Preferably, the securing means is arranged so that the jig engages a door in a manner offset from that in which the jig engages a corresponding door frame so that the recesses formed 10 on the door frame are vertically offset from the recesses formed on the door to allow a clearance between the door frame and an upper part of the door to permit the door to swing relative to the frame. Preferably, the securing means includes a protrusion having a surface for engagement with 15 an upper member of a door frame and a surface for engagement with an upper part of a door. Preferably, the separation of the two surfaces of the protrusion corresponds to the clearance between the door frame and an upper part of the door. Preferably, the protrusion is movable between a first condition of use for engagement with 20 a door frame and a second condition of use for engagement with a door. Preferably, the guiding recesses are arranged to receive a support insert to support the base of the tool so that hinge recesses can be formed in narrow doors. Preferably, the support insert covers a gap between the jig and the door to stabilise the base of the tool. 25 Preferably, the jig is secured to a door or door hinge by fastening the jig to the door or door frame. Preferably, the jig is arranged to be engageable with both a flat door frame and a rebated door frame. 30 Preferably, the elongate body is substantially rigid. Preferably, the elongate body is made from timber, plastic or aluminium.

H:\ejl\lnwoveP\NRPorhl\DCC\EL\9949848_l.DOC-6/04/2016 -3 Preferably, the guiding recesses are arranged to guide a router. Preferably, the jig has at least three guiding recesses. According to the present invention, there is provided a method of forming hinge recesses 5 in a door or door frame, comprising the steps of: securing a door hinge jig of the above described type at a single location relative to a door or door frame; and using the jig to guide a base plate of a router to form multiple hinge recesses in the door or door frame. Preferably, securing the door hinge jig to a door or door frame is performed by fastening 10 the door hinge jig to a door or door frame with screws. BRIEF DESCRIPTION OF THE DRAWINGS The invention will be further described, by way of non-limiting example only, with 15 reference to the accompanying drawings in which: Figure 1 is a side view of a door hinge jig of one embodiment of the invention, the door hinge jig in engagement with a flat door frame; Figure 2 is a side view of the door hinge jig in engagement with a rebated door frame; 20 Figure 3 is a side view of the door hinge jig in engagement with a door; Figure 4 is a rear view of the door hinge jig; and Figure 5 is a side view of another door hinge jig, the door hinge jig in engagement with a flat door frame 25 DETAILED DESCRIPTION With reference to Figure 1, there is shown a door hinge jig 10. The door hinge jig 10 comprises an elongate body 12 which has a plurality of guiding recesses 14 arranged to C:\Po rbl\DCC\EJL\3492901_1.DOC-28A2/201 1 -4 guide a tool for forming hinge recesses on a door 16 (see Figure 3) or door frame 18 (see Figures 1 and 2). The guiding recesses 14 are positioned with mutually fixed spacing to correspond to the desired location of hinge recesses on a door 16 or door frame 18. A plurality of hinge recesses are able to be formed on the respective door or door frame with 5 the jig mounted at a single location relative to the door or door frame. In one form, the door hinge jig 10 includes a securing means 20 to secure the jig 10 to the door 16 or door frame 18 at a location relative to said door 16 or door frame 18 at which location each hinge recess is able to be formed on the respective door 16 or door frame 18. 10 The securing means 20 is arranged so that the jig 10 engages a door 16 in a manner offset from that in which the jig 10 engages a corresponding door frame 18 so that the recesses formed on the door frame 18 are vertically offset from the recesses formed on the door 16 to allow a clearance between the door frame 18 and an upper part of the door 16 to permit the door 16 to swing relative to the frame 18. 15 The securing means 20 includes a protrusion 22 having a surface 24 for engagement with an upper member of a door frame 18 and a surface 26 for engagement with an upper part of a door 16. As can be seen in Figure 2, the protrusion 22 is arranged so as to not obstruct the engagement between the jig 10 and a rebated door frame. The separation of the two 20 surfaces 24,26 of the protrusion 22, which in the form shown corresponds to the thickness of the protrusion 22, corresponds to the clearance between the door frame 18 and an upper part of the door 16. In the form shown, the thickness of the protrusion 22 is about 2.5mm to 3.0mm thick. 25 The protrusion 22 is movable between a first condition of use as seen in Figures 1 and 2 for engagement with a door frame 18 and a second condition of use as seen in Figure 3 for engagement with a door 16. In the form shown, the protrusion 22 is rotatable between the first condition of use and the second condition of use. 30 In the first condition of use, the protrusion 22 is arranged so as to allow the elongate body to be received against a vertical door jamb of a door frame 18 in an abutting manner. In C:\NRPonbl\DCC\EfL\3492901I.DOC.2M22011 -5 this condition of use, the protrusion provides a spacer to vertically offset the jig 10 so that hinge recesses formed on the door frame 18 are vertically offset from those formed on door 16. 5 In the second condition of use, the protrusion 22 is rotated 90 degrees so that surface 26 engages an upper surface of a door 16 in an abutting matter so that the jig 10 may be received against a door 16 for securing thereto. When the jig 10 is secured to a door 16, the hinge recesses formed thereon are vertically offset from those formed on the door frame 18 to provide the necessary clearance between the door 16 and the door frame 18. 10 Advantageously, by providing a protrusion 22 which is rotatable between a first condition of use and a second condition of use, the jig 10 may be used for forming hinge recesses on both a door and a door frame. 15 In one form, the securing means 20 includes a series of plates 30a,30b,30c,30d secured to the elongate body 12. In the form shown, the plates are between about 12mm and 19mm thick and about 70mm wide. A length of each plate is configured to provide a sufficiently long locating surface to support engagement in an abutting manner to the side of a door 16 or door frame 18. A surface of each plate 30a,30b,30c,30d is configured to abut a front or 20 rear face of a door 16 or a front or rear face of a door jamb of a door frame 18 to align the jig 10 along the door 16 or door frame 18. The guiding recesses 14 of the jig 10 are about 67mm wide by 169mm so that the hinge recesses may be formed with a router having a 90mm base plate. As can be seen in Figure 25 2, the guiding recesses 14 may each be arranged to receive a support insert 28 so that hinge recesses can be formed in narrow doors, such as a rebated door for example. Support insert 28 has a thickness less than that of jig 10 and is configured to provide a flat surface over which the base plate of the router can pass without interfering with the router bit. 30 The support insert 28 covers a gap between the jig and the door to stabilise the base of the tool. The support insert 28 may be required as the small surface area provided by the side H:\jl\Interoven\NRPortb\DCC\EJL\9949848_.DOC-6/04/2016 -6 of a narrow door and available for the base of a router to be supported upon may not be sufficient to prevent rocking of the router, thereby reducing the accuracy of the hinge recess formed. 5 When using the support insert 28, the depth of the router bit used may need adjustment to accommodate for the thickness of the insert 28. Inserts 28 may be arranged to releasably engage the elongate body 12 so that they can be quickly and easily interchanged. In the form shown, the jig 10 is arranged to form hinge recesses on a door 16 having a 10 thickness of between about 35mm to about 45mm. The jig 10 is secured to a door 16 or door frame 18 by fastening the jig 10 to the door 16 or door frame 18. Any suitable, commercially available threaded fastener may be used. The elongate body 12 may define a plurality of apertures 36 to receive the threaded fasteners. The apertures 36 may be predrilled. 15 The jig 10 is arranged to be engageable with both a flat door frame 18, as shown in Figure 1, and a rebated door frame 19, as shown in Figure 2. As can be seen in Figure 3, an upper portion 32 of the elongate body 12 includes a protrusion 34 which is shaped so as to not obstruct engagement of the jig 10 with a rebated door frame 19. 20 In one form, the elongate body 12 of the jig 10 is substantially rigid and is made from timber, plastic or aluminium. In one form, the elongate body 12 is about 19mm to 20mm thick. 25 In one form, the jig 10 has three guiding recesses. In other forms, the jig 10 may have 2 or more guiding recesses 14, such as the jig 110 shown in Figure 5 which has 4 guiding recesses, to form the desired number of hinge recesses in a door 16 or door frame 18 as C :\RPortblDCC\EJL\3492901 1.DOC-2M O I -7.. required. It can be seen that the securing means 20 of jig I10 includes an additional plate 30e so that the jig can be used with larger doors, such as those which are 2340mm long. In one form, a method of forming hinge recesses in a door or door frame comprises the 5 steps of securing a door hinge jig 10 of the above described type at a single location relative to a door 16 or door frame 18 and using the jig to form multiple hinge recesses in the door 16 or door frame 18. Advantageously, each hinge recess may be formed on the door 16 or door frame 18 without repositioning the jig 10. 10 Advantageously, each hinge recess may be formed in the door 16 or door frame 18 after the jig 10 has been secured to the door 16 or door frame 18. Repositioning of the jig 10 to form subsequent hinge recesses is avoided, thereby saving time and increasing the accuracy of the hinge recesses. 15 Securing the door hinge jig 10 to a door 16 or door frame 18 is performed by fastening the door hinge jig 10 to a door 16 or door frame 18 with screws. In one form, the hinge recesses are formed with a router. The embodiments have been described by way of example only and modifications are 20 possible within the scope of the invention disclosed. Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps 25 but not the exclusion of any other integer or step or group of integers or steps. The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived 30 from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

Claims

1. A door hinge jig comprising an elongate body, the elongate body having a plurality of guiding recesses arranged to guide a base plate of a router for forming hinge recesses on 5 a door or door frame, the guiding recesses being positioned with mutually fixed spacing to correspond to the desired location of hinge recesses, whereby a plurality of said hinge recesses are able to be formed on the respective door or door frame with the jig mounted at a single location relative to the door or door frame. 10

2. A door hinge jig as claimed in claim 1, wherein the door hinge jig includes a securing means to secure the jig to the door or door frame at said location relative to said door or door frame, at which location each hinge recess is able to be formed on the respective door or door frame. 15

3. A door hinge jig as claimed in claim 2, wherein the securing means is arranged so that the jig engages a door in a manner offset from that in which the jig engages a corresponding door frame so that the recesses formed on the door frame are vertically offset from the recesses formed on the door to allow a clearance between the door frame and an upper part of the door to permit the door to swing relative to the frame. 20

4. A door hinge jig as claimed in claim 2 or claim 3, wherein the securing means includes a protrusion having a surface for engagement with an upper member of a door frame and a surface for engagement with an upper part of a door. 25

5. A door hinge jig as claimed in claim 4, wherein the separation of the two surfaces of the protrusion corresponds to the clearance between the door frame and an upper part of the door.

6. A door hinge as claimed in claim 4 or claim 5, wherein the protrusion is movable 30 between a first condition of use for engagement with a door frame and a second condition of use for engagement with a door. H:\ejl\ntivovve\NRPortbl\DCC\EJL\9949848_ l.DOC-6104/2016 -9

7. A door hinge jig as claimed in any one of the preceding claims, wherein the guiding recesses are arranged to receive a support insert to support a base of the tool so that hinge recesses can be formed in narrow doors. 5

8. A door hinge jig as claimed in claim 7, wherein the support insert covers a gap between the jig and the door to stabilise the base of the tool.

9. A door hinge jig as claimed in any one of the preceding claims, wherein the jig is 10 secured to a door or door hinge by fastening the jig to the door or door frame.

10. A door hinge jig as claimed in any one of the preceding claims, wherein the jig is arranged to be engageable with both a flat door frame and a rebated door frame. 15

11. A door hinge jig as claimed in any one of the preceding claims, wherein the elongate body is substantially rigid.

12. A door hinge jig as claimed in any one of the preceding claims, wherein the guiding recesses are arranged to guide a router. 20

13. A door hinge jig as claimed in any one of the preceding claims, wherein the jig has at least three guiding recesses.

14. A door hinge jig as claimed in any one of the preceding claims, wherein the 25 elongate body is made from timber, plastic or aluminium.

15. A method of forming hinge recesses in a door or door frame, comprising the steps of: securing a door hinge jig according to any one of the preceding claims at a single 30 location relative to a door or door frame; and using the jig to guide a base plate of a router to form multiple hinge recesses in the H:\ej1\1nterwova\NRPonbl\DCC\EJL\9949848_.DOC-6/04/2016 - 10 door or door frame.

16. A method of forming hinge recesses as claimed in claim 15, wherein securing the door hinge jig to a door or door frame is performed by fastening the door hinge jig to a 5 door or door frame with screws.

17. A door hinge jig substantially as hereinbefore described with reference to the accompanying drawings. 10

18. A method of forming hinge recesses substantially as hereinbefore described with reference to the accompanying drawings.