AU2004201336B2 - A Lock - Google Patents

Description

S&F Ref: 672770 AUSTRALIA PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name and Address Doric Products Pty Limited of Applicant: 46-48 Redfem Street Wetherill Park New South Wales 2164 Australia Actual Inventor(s): Michael Brian Alchin and Perry Raymond Long Address for Service: Spruson & Ferguson St Martins Tower Level 35 31 Market Street Sydney NSW 2000 (CCN 3710000177) Invention Title: A Lock ASSOCIATED PROVISIONAL APPLICATION DETAILS [33] Country [31] Applic. No(s) [32] Application Date AU 2003901613 04 Apr 2003 The following statement is a full description of this invention, including the best method of performing it known to me/us: 5815c 1 A LOCK Technical Field The present invention relates to locks and more particularly but not exclusively to locks for "French doors". 5 Background of the Invention Locks associated with French doors have generally included a latch tongue operated by a handle, and a lock cylinder that operates a dead bolt. In the past a user would merely close the door by gripping the handle and thereafter operate the lock cylinder to lock the door. 1o The above discussed lock arrangement is not satisfactory in respect of "French doors" where there is a seal and the door needs to be pulled back on the seal to make proper contact. In such instances the user needs to use both hands, that is pull on the handle to properly close the door and then operate the lock cylinder. Object of the Invention is It is the object of the present invention to overcome or substantially ameliorate the above disadvantage. Summary of the Invention There is disclosed herein a lock including: a body; 20 a first tongue mounted in the body for movement between an extended door jamb engaging position and a retracted position; a second tongue mounted in the body for movement between an extended door jamb engaging position and a retracted position; a first actuator means operatively associated with the first tongue to cause 25 movement of the first tongue from the first tongue extended position to the first tongue retracted position upon movement of the first actuator means in a first angular direction upon operation of a handle; a second actuator means, the second actuator means being operatively associated with the second tongue to cause movement of the second tongue from the second tongue 30 extended position to the second tongue retracted position by movement of the first actuator means in said first direction, and movement of the second tongue from the second tongue retracted position to the second tongue extended position upon movement 2 of the first actuator means in an angular direction opposite said first direction; and wherein said first actuator means includes a first actuator engagable with the second actuator means to cause the movement of the second actuator means to move the second 5 tongue between the extended and retracted positions of the second tongue and a second actuator operatively associated with the first tongue to cause the movement of the first tongue from the first tongue extended position to the first tongue retracted position. Preferably, said first actuator means includes a first gear turned by the handle, and said second actuator means includes a second gear meshingly engaged with the first 10 gear, the second gear being operatively associated with the second tongue to cause the movement of the second tongue. Preferably, the second actuator means includes an arm member associated with said second gear and engaged with said second tongue so that upon angular movement of said second gear said arm member moves the second tongue. is Preferably, the first actuator means includes an arm moved angularly by the handle to move the first tongue to the first tongue retracted position. Preferably, the lock includes a lock cylinder, and a lock member mounted in the body for movement between a first position engaged with the second tongue and retaining the second tongue in the second tongue extended position, and a second position 20 permitting movement of the second tongue, the lock member being moved between the positions thereof by operation of the lock cylinder. In a further preferred form, the lock member is a first lock member, and said lock includes a second lock member, the second lock member being operatively associated with the first lock member so as to move in unison therewith, the second lock member 25 being movable between a first position engaging the first tongue and retaining the first tongue in the first extended position, and a second position permitting movement of the first tongue. Preferably, wherein there is lost motion between the first and second actuators. Preferably, said first actuator has a pair of abutment faces, and said second 30 actuator has a pair of abutment faces with said lost motion being provided by angular movement between the two pairs of abutment faces. Preferably, said first actuator includes an arm engaged with the first tongue, with angular movement of the arm in said first direction causing movement of the first tongue from the extended position thereof to the retracted position thereof 3 Preferably, said first actuator and said second actuator are mounted for coaxial angular movement. Preferably, the first actuator means has an axis about which the first actuator means angularly moves, and the second actuator means has an axis about which the 5 second actuator angularly moves, with the axes of the actuator means being generally parallel. Preferably, the first actuator includes a first gear, and the second actuator means includes a second gear which is meshingly engaged with the first gear, the second gear being operatively associated with the second tongue to cause the movement thereof. 1o Preferably, said second actuator is adapted to be moved by the handle, with said second actuator causing the movement of the first actuator to thereby cause the movement of the second actuator means. Preferably, the lock includes a lock cylinder, and a lock member mounted in the body for movement between a first position engaged with the second tongue and retaining is the second tongue in the second tongue extended position, and a second position permitting movement of the second tongue to the second tongue retracted position, the lock member being moved between the positions thereof by operation of the lock cylinder. Preferably, the lock member is a first lock member, and said lock includes a 20 second lock member, the second lock member being movable between a first position engaging the first tongue and retaining the first tongue in the first tongue extended position, and a second position permitting movement of the first tongue to the first tongue retracted position, with the lock members being operable to simultaneously secure both tongues in the extended position. 25 Preferably, said cylinder to move the lock member to the first position thereof also prevents operation of the first actuator means to move the first tongue to the first tongue retracted position, and operation of said cylinder to move the lock member to the second portion thereof also provides for operation of the first actuator means to move the first tongue to the first tongue retracted position. 30 Preferably, the lock further includes a spring urging the first tongue to the first tongue extended position. Preferably, said first tongue is mounted in said body for linear movement between the first tongue extended and retracted positions, with said first actuator means moving the first tongue from the first tongue extended position to the first tongue 35 retractor position.

4 Preferably, the lock further includes a slide mounted in said body to be operative associated with a remote auxiliary lock to cause operation thereof, said slide being operative associated with the second tongue so that the auxiliary lock is operated in unison with the second tongue. 5 There is further disclosed herein a lock including: a body; a first tongue mounted in the body for linear movement between an extended doorjamb engaging position and a retracted position, the tongue including a surface; a spring urging the first tongue to the extended position; 10 a second tongue mounted in the body for movement between an extended door jamb engaging position and a retracted position; a first actuator means operatively associated with the first tongue to cause movement of the first tongue from the first tongue extended position to the first tongue retracted position upon movement of the first actuator means in a first angular direction is upon operation of a handle; a second actuator means, the second actuator means being operatively associated with the second tongue to cause movement from the second tongue extended position to the second tongue retracted positions by movement of the first actuator means in said first direction, and movement of the second tongue from the second tongue retracted position 20 to the second tongue extended position upon movement of the first actuator means in an angular direction opposite said first direction; and wherein said first actuator means includes a first actuator engagable with the second actuator means to cause the movement of the second actuator means to move the second tongue between the extended and retracted positions of the second tongue, and a second 25 actuator operatively associated with the first tongue to cause the movement of the first tongue from the first tongue extended position to the first tongue retracted position, the first and second actuators being mounted for co-axial angular movement about a first axis; said first actuator has a pair of abutment faces spaced angularly about said first 30 axis, an arm engagable with the first tongue surface to cause movement of the first tongue to the first tongue retracted position by angular movement of the arm, and a first gear; and said second actuator has a pair of abutment faces also spaced angularly about said first axis, with engagement of the first pair of abutment faces with the second pair of 5 abutment faces providing for loss motion between the first and second actuators, a second gear, said second gear being meshingly engaged with said first gear and movable angularly about a further axis, said further axis being generally parallel to the first axis, with angular movement of said first gear causing opposite angular movement of said 5 second gear. Brief Description of the Drawings A preferred form of the present invention will now be described by way of example with reference to the accompanying drawings wherein: Figure 1 is a schematic side elevation of a lock for "French doors"; 1o Figures 2 to 6 are further schematic side elevations of the lock of Figure 1 in alternative operative configurations; Figure 7 is a parts exploded isometric view of the lock of Figures 1 to 6; and Figure 8 is a schematic further parts exploded isometric view of the lock of Figure 1. is Detailed Description of the Preferred Embodiments In the accompanying drawings there is schematically depicted a lock 10 for French doors. The lock 10 includes a hollow body 11 within which there is slidably mounted a first lock tongue 12 and a second lock tongue 13. The tongues 12 and 13 are mounted for sliding linear movement in the direction of the arrows 14 between an 20 extended door jamb engaging position (as shown in Figure 1) and a retracted position (as shown in Figure 5) enabling opening of a door having the lock 10. The first lock tongue 12 has a ramp surface 15 that would engage the door jamb and/or striker member thereof to cause the tongue 12 to move to a retracted position located within the body 11. This would occur when the door was being closed. The second lock tongue 13 would be a 25 "dead bolt". The body 11 has a front wall 66, a top wall 67 and bottom wall 68. The front wall has a pair of apertures 69 through which the tongues 12 and 13 project and move between the extended and retracted positions thereof. Not illustrated but associated with the lock 10 would be one or more handles. The handle/s would have a square shaft that would pass through a square aperture 16 in 30 an actuator 17. The actuator 17 is mounted for angular movement about an axis about which the handle pivots. The actuator 17 includes gear 18 projecting generally radially relative to the axis of the actuator 17. The gear 18 is operatively associated with a further actuator 19 having a gear 20 meshingly engaged with the gear 18. Accordingly, angular movement of the actuator 17 6 in a first angular direction causes angular movement of the actuator 19 in the opposite angular direction about an axis of the actuator 19. The axis of the actuator 19 is again generally perpendicular to the door and generally parallel to the axis of the actuator 17. The actuator 17 also includes abutment faces 21 and a bar portion 22. 5 Mounted for co-axial angular movement with respect to the actuator 17 is a further actuator 23 having a hub 24. The hub 24 has central aperture 25 to enable the handle shaft to pass therethrough. The further actuator 23 is also mounted for angular movement and has abutment faces 26 positioned to be engaged by the faces 21. However, it should be appreciated that there is lost motion between the actuator 17 and 1o the actuator 23 due to the angular arrangement of the faces 21 and 26. The hub 24 has extending from it an arm 27 that engages with a face 28 of the tongue 12. When the handle is rotated in the direction of the arrow 29, one of the faces 21 engages one of the faces 26 and causes movement of the arm 27 in the direction of the arrow 30 and moves the tongue 12 to the retracted position by moving the tongue 12 into the body 11. The is actuator 17 and 23 comprise a first actuator means 64. The gear 20 is operatively associated with an arm member 31 having a hub 32 from which there generally radially extends an arm 33. The arm member 31 and gear 19 rotate about a common axis through the centre of the hub 32. The axis of the hub 32 is parallel to the axis about which the handle and gear 18 angularly move. 20 The gear 20 has a pair of faces 34 and 35 that are positioned to engage faces 36 and 37 of the hub 32. In this respect it should be appreciated that there is lost motion between the gear 20 and the hub 32 due to an angular arrangement of the faces 34, 35, 36 and 37. The actuator 19 and member 31 comprise a second actuator means 65. When the abovementioned handle is moved angularly in the direction of the 25 arrow 29 the arm 33 is caused to move in the opposite angular direction, that is the direction of the arrow 38. Movement of the arm 33 in the direction of the arrow 38 causes movement of the tongue 13 to its retracted position. That is, the tongue 13 is moved inwardly with respect to the body 11. This occurs as the arm 33 is provided with a longitudinal slot 39 that slidably engages a pin 40 on the tongue 13. 30 Movement of the handle in a direction opposite the direction of the arrow 29 causes the arm 33 to move in a direction opposite the arrow 38. Such an operation will cause the tongue 13 to move from a retracted position to an extended position. Mounted in the body 11 is a lock cylinder 39. The lock cylinder 39 has a cam 40 that is operable to secure the tongue 13 in the extended position. More particularly there 35 is slidably mounted in the body 11 a locking bar 41. The locking bar 41 has an aperture 42 within which the cam 40 projects, with the aperture 42 providing abutment surfaces 43 7 and 44 that are engaged by the cam member 40 to cause movement of the bar 41 in the direction of the arrow 45. The bar 42 has a projection 46 that is received within an aperture 47 in the tongue 13. The bar 41 is movable between a locking position (Figure 1) engaged in the recess 47 and a release position (Figure 2) permitting movement of the 5 tongue 13. If so required, the tongue 13 may also be provided with a second aperture 48 that is engaged by the projection 46 to lock the tongue 13 in the retracted position. Engaged with the bar 41 is a further locking bar 49 that has a projection 50 received within a recess 51 of the tongue 12. The bar 49 reciprocates with the bar 41 and therefore engages within the tongue 12 when the projection 46 engages within the tongue io recess 47. Thus the tongues 12 and 13 can be simultaneously secured in their extended positions. When the projection 46 is retracted, the bar 49 is also retracted from engagement with the tongue 12 so as to permit movement thereof. Mounted within the body 11 toward the rear thereof is a guide 52 that slidably receives a slid member 53. The slide member 53 would be selectively coupled to one or is more remote auxiliary locks. The auxiliary locks are operated in unison with the tongue 13 as the slide member 53 is operated by means of an "L" shape link 54. The link 54 has an elongated slot 55 engaged with the pin 40, and a further elongated slot 56 engaged with the pin 57 of the slide 53. The link 54 is pivotally mounted by means of a pin 58 secured to the body 11. Angular movement of the link 54 causes movement of the slide 20 member 53 to operate the remote locks. The tongue 12 is urged to the extended position by means of a spring 59. Similarly, the actuator 17 is urged to the position depicted in Figure I by one or more springs 60 acting on a slide member 61 that bears against the portion 22 of the actuator 17. 25 The housing 11 is closed by a cover 62 and 63.

Claims (20)

1. A lock including: a body; a first tongue mounted in the body for movement between an extended door 5 jamb engaging position and a retracted position; a second tongue mounted in the body for movement between an extended door jamb engaging position and a retracted position; a first actuator means operatively associated with the first tongue to cause movement of the first tongue from the first tongue extended position to the first tongue io retracted position upon movement of the first actuator means in a first angular direction upon operation of a handle; a second actuator means, the second actuator means being operatively associated with the second tongue to cause movement of the second tongue from the second tongue extended position to the second tongue retracted position by movement of the first 15 actuator means in said first direction, and movement of the second tongue from the second tongue retracted position to the second tongue extended position upon movement of the first actuator means in an angular direction opposite said first direction; and wherein said first actuator means includes a first actuator engagable with the second 20 actuator means to cause the movement of the second actuator means to move the second tongue between the extended and retracted positions of the second tongue and a second actuator operatively associated with the first tongue to cause the movement of the first tongue from the first tongue extended position to the first tongue retracted position.

2. The lock of claim 1, wherein said first actuator means includes a first 25 gear turned by the handle, and said second actuator means includes a second gear meshingly engaged with the first gear, the second gear being operatively associated with the second tongue to cause the movement of the second tongue.

3. The lock of claim 2, wherein the second actuator means includes an arm member associated with said second gear and engaged with said second tongue so that 30 upon angular movement of said second gear said arm member moves the second tongue.

4. The lock of claim 1, 2 or 3, wherein the first actuator means includes an arm moved angularly by the handle to move the first tongue to the first tongue retracted position. 9

5. The lock of any one of claims I to 4 wherein, the lock includes a lock cylinder, and a lock member mounted in the body for movement between a first position engaged with the second tongue and retaining the second tongue in the second tongue extended position, and a second position permitting movement of the second tongue, the s lock member being moved between the positions thereof by operation of the lock cylinder.

6. The lock of claim 5, wherein the lock member is a first lock member, and said lock includes a second lock member, the second lock member being operatively associated with the first lock member so as to move in unison therewith, the second lock 10 member being movable between a first position engaging the first tongue and retaining the first tongue in the first extended position, and a second position permitting movement of the first tongue.

7. The lock of claim 1, wherein there is lost motion between the first and second actuators. 15

8. The lock of claim I or 7, wherein said first actuator has a pair of abutment faces, and said second actuator has a pair of abutment faces with said lost motion being provided by angular movement between the two pairs of abutment faces.

9. The lock of claim 1, 7, or 8, wherein said first actuator includes an arm engaged with the first tongue, with angular movement of the arm in said first direction 20 causing movement of the first tongue from the extended position thereof to the retracted position thereof

10. The lock of any one of claims 1, 7, 8 or 9 wherein said first actuator and said second actuator are mounted for coaxial angular movement.

11. The lock of claims I or any one of claims 8 to 10, wherein the first 25 actuator means has an axis about which the first actuator means angularly moves, and the second actuator means has an axis about which the second actuator angularly moves, with the axes of the actuator means being generally parallel.

12. The lock of claims I or any one of claims 8 to 11, wherein the first actuator includes a first gear, and the second actuator means includes a second gear which 10 is meshingly engaged with the first gear, the second gear being operatively associated with the second tongue to cause the movement thereof.

13. The lock of claims 1 or any one of claims 8 to 11, wherein said second actuator is adapted to be moved by the handle, with said second actuator causing the 5 movement of the first actuator to thereby cause the movement of the second actuator means.

14. The lock of claims I or any one of claims 8 to 13 wherein, the lock includes a lock cylinder, and a lock member mounted in the body for movement between a first position engaged with the second tongue and retaining the second tongue in the to second tongue extended position, and a second position permitting movement of the second tongue to the second tongue retracted position, the lock member being moved between the positions thereof by operation of the lock cylinder.

15. The lock of claim 14, wherein the lock member is a first lock member, and said lock includes a second lock member, the second lock member being movable is between a first position engaging the first tongue and retaining the first tongue in the first tongue extended position, and a second position permitting movement of the first tongue to the first tongue retracted position, with the lock members being operable to simultaneously secure both tongues in the extended position.

16. The lock of claim 4 or 14, wherein operation of said cylinder to move 20 the lock member to the first position thereof also prevents operation of the first actuator means to move the first tongue to the first tongue retracted position, and operation of said cylinder to move the lock member to the second portion thereof also provides for operation of the first actuator means to move the first tongue to the first tongue retracted position. 25

17. The lock of any one of claims I to 16, further including a spring urging the first tongue to the first tongue extended position.

18. The lock of any one of claims I to 17, wherein said first tongue is mounted in said body for linear movement between the first tongue extended and retracted positions, with said first actuator means moving the first tongue from the first 30 tongue extended position to the first tongue retractor position. 11

19. The lock of any one of claims 1 to 18, further including a slide mounted in said body to be operative associated with a remote auxiliary lock to cause operation thereof, said slide being operative associated with the second tongue so that the auxiliary lock is operated in unison with the second tongue. 5

20. A lock including: a body; a first tongue mounted in the body for linear movement between an extended door jamb engaging position and a retracted position, the tongue including a surface; a spring urging the first tongue to the extended position; 10 a second tongue mounted in the body for movement between an extended door jamb engaging position and a retracted position; a first actuator means operatively associated with the first tongue to cause movement of the first tongue from the first tongue extended position to the first tongue retracted position upon movement of the first actuator means in a first angular direction is upon operation of a handle; a second actuator means, the second actuator means being operatively associated with the second tongue to cause movement from the second tongue extended position to the second tongue retracted positions by movement of the first actuator means in said first direction, and movement of the second tongue from the second tongue retracted position 20 to the second tongue extended position upon movement of the first actuator means in an angular direction opposite said first direction; and wherein said first actuator means includes a first actuator engagable with the second actuator means to cause the movement of the second actuator means to move the second tongue between the extended and retracted positions of the second tongue, and a second 25 actuator operatively associated with the first tongue to cause the movement of the first tongue from the first tongue extended position to the first tongue retracted position, the first and second actuators being mounted for co-axial angular movement about a first axis; said first actuator has a pair of abutment faces spaced angularly about said first 30 axis, an arm engagable with the first tongue surface to cause movement of the first tongue to the first tongue retracted position by angular movement of the arm, and a first gear; and said second actuator has a pair of abutment faces also spaced angularly about said first axis, with engagement of the first pair of abutment faces with the second pair of 12 abutment faces providing for loss motion between the first and second actuators, a second gear, said second gear being meshingly engaged with said first gear and movable angularly about a further axis, said further axis being generally parallel to the first axis, with angular movement of said first gear causing opposite angular movement of said 5 second gear. Dated 4 December, 2009 Doric Products Pty Limited Patent Attorneys for the Applicant/Nominated Person SPRUSON & FERGUSON