Pivot block

Abstract

A pivot block including a first part for holding a bolt of an associated folding panel, and a second part that is able to be fixed to a track so as to position the first part and the bolt at a location whereby the folding panel is able to pivot about pivot bolt, wherein the first part is moveable relative to the second part lengthwise of the track, for adjustment of the position of the pivot bolt.

Claims

1. A device, comprising a first part comprising a passage that is configured to hold a bolt of an associated folding panel, and the device also comprising a second part that has side flanges configured to be fixed to a track so as to position the first part and the passage at a location along the track, wherein the first part is slidably connected to the second part so that the first part can slide relative to the second part in a direction lengthwise of the track, wherein the first part defines a first end of the device and the second part defines a second end of the device so that the sliding relative movement of the two parts changes an overall length of the device, wherein one of the parts has a slide that moves along a channel formed in the other one of the parts when the parts are moved to adjust the overall length of the device, the sliding relative movement being between a shortened position where the slide is substantially in the channel and a lengthened position where the slide extends partially out of an end of the channel, the device further comprising a fastener to secure the first and second parts together and a mechanism that operates between the first and second parts to drive the movement of the first part relative to the second part, wherein the mechanism comprises a cam mounted to one of the parts and a follower provided in the other part, the cam having a shaft that can be accessed through a base of one of the parts and an eccentric boss associated with the shaft that is in contact with the follower to move the other part when the shaft is rotated.

2. The device of claim 1, wherein the follower is a lateral groove in the other part, the lateral groove extending within a plane that is perpendicular to a rotational axis of the shaft.

3. The device of claim 1, wherein the fastener passes through the slide and into a lock nut that clamps against the slide and fixes the parts together.

4. The device of claim 1, wherein the device comprises one or more connectors that pass through the second part to lock the side flanges to the track.

5. The device of claim 1, wherein the first part comprises a thread in the passage for screw-threaded engagement of the bolt, and a lock mechanism that comprises a collar that registers with flats of the bolt, and a keeper for selectively holding the collar against rotation, thereby securing the bolt against rotation and height adjustment.

6. The device of claim 5, wherein the keeper is biased into engagement with the collar.

7. The device of claim 6, wherein the keeper comprises a push button actuator that when pressed moves the keeper against the bias and out of engagement with the collar, to thereby accommodate rotation of the bolt for height adjustment.

8. The device of claim 7, wherein the first part has a recess to house the keeper and the collar, and the first part also having a cover plate fitted over the recess, wherein the cover plate comprises openings for the push button and for receipt of the bolt.

9. The device of claim 8, wherein a cover plate is also fitted over a recess of the second part, the cover plate fitted to the second part having apertures for the cam mechanism and fastener.

10. The device of claim 1, further comprising an associated dress plate removably connected to the device, the dress plate serving to hide the device from view when mounted onto the track, the dress plate comprising an elongate slot to accommodate various positions of the bolt, resulting from adjustment of the first part.

11. The device of claim 1, in combination with a bolt mounted in the first part of the device.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is described by way of non-limiting example only with reference to the accompanying drawings, in which:

(2) FIG. 1 is an exploded top perspective view of a pivot block;

(3) FIG. 2 is an exploded bottom perspective view of the pivot block;

(4) FIG. 3 is a front perspective view of the pivot block;

(5) FIG. 4 is a top view of the pivot block;

(6) FIG. 5 is a rear perspective view of the pivot block;

(7) FIG. 6 is a front view of the pivot block;

(8) FIG. 7 is a side view of the pivot block;

(9) FIG. 8 is a rear view of the pivot block;

(10) FIG. 9 is a cross sectional side view of the pivot block;

(11) FIG. 10 is a bottom front perspective view of the pivot block;

(12) FIG. 11 is a bottom view of the pivot block;

(13) FIG. 12 is bottom rear perspective view of the pivot block;

(14) FIG. 13 is a top perspective view showing a track, dress plate and the pivot block;

(15) FIG. 14 is a bottom perspective view showing the track, dress plate and pivot block;

(16) FIG. 15 is a bottom front perspective view showing the pivot block mounted in the track;

(17) FIG. 16 is a bottom rear perspective view showing the pivot block mounted in the track; and

(18) FIG. 17 is a top perspective view of a dress plate.

DETAILED DESCRIPTION OF THE INVENTION

(19) FIG. 1 shows a pivot block 10 formed of a first part 1 arranged for telescopic movement relative to a second part 2.

(20) The first part 1 has a body 3 with winged side flanges 4 and a raised section 5 with a through passage 6 that has internal threading 7. A slide 8 extends forwardly of the body 3. The slide 8 has a central slot 9, with a rebated shoulder 11 to receive a square lock nut 12.

(21) The second part 2 has a body 13, also with side flanges 14, and a channel 15 to receive the slide 8 of the first part 1. A cam 16 is fitted into a base 37 of the second part 2 and is held in place with a cover plate 17. The cam 16 has an eccentric boss 18 and a shaft 19 that can be accessed through an aperture 20 in the cover plate 17.

(22) The plate 17 also has an opening 21 for a fastener 22 that is arranged to pass through the slide 8, the lock nut 12 and into an aligned opening 23 in a top 24 of the second part 2.

(23) FIG. 2 shows a circular recess 25 in the base 37 of the second part 2, arranged to receive the cam 16. A lateral slot 26 is provided in the first part 1, extending sideward of the slide 8. The slot 26 acts as a follower 27 that is driven by the cam 16.

(24) A base 28 of the first part 1 is also provided with a cover plate 29 that covers a lock mechanism 30 housed within the base 28. The lock mechanism 30 includes a push button actuator 31 that projects through an aperture 32 in the plate 29. The actuator 31 is used to selectively engage a collar 32 that is fitted to flats 33 of a hanger bolt 34 (shown in truncated form for ease of description) introduced into the passage 6. The operation of the lock mechanism 30 is described in more detail later.

(25) FIG. 3 shows the first and second parts 1, 2 of the pivot block 10 in an assembled condition where the fastener 22 projects up through the opening 23 in the top 24 of the second part 2.

(26) FIG. 4 shows a gap 35 between the body 3 of the first part 1 and the body 13 of the second part 2, which provides space for the first part 1 to be adjusted closer to the second part 2, if needed.

(27) FIG. 5 shows the lock nut 12 mounted in the slide 8, in alignment with the fastener 22 whereby tensioning of the fastener 22 will cause the lock nut 12 to clamp down onto the slide 8, to fix the position of the first part 1 relative to the second part 2.

(28) FIG. 6 shows the flanges 14 of the second part 2 are formed with curved grips 36 and that the fastener 22 and shaft 19 are accessible from the base 17 of the second part 2.

(29) FIG. 7 also illustrates the actuator 31 as being accessible from a base 28 of the first part 1 and FIG. 8 shows the side flanges 4 are also provided with curved grips 38.

(30) FIG. 9 is a cross section of the pivot block 10, which shows a cam mechanism 39 that includes the cam 16 and the follower 27. To telescopically adjust the first part 1 in and out of the second part 2, the shaft 19 of the cam 16 is rotated, which results in corresponding movement of the boss 18. This in turn causes the boss 18 to track along the lateral slot 26 and force the slide 8 to the left or right, as viewed, which translates into movement of the first part 1. As a result, the position of the bolt 34 mounted in the first part 1 can be adjusted accordingly.

(31) Once the correct position has been obtained, the fastener 22 is used to fix the first and second parts 1, 2 together.

(32) Referring now to the lock mechanism 30, the actuator 31 forms part of a keeper 40 that is recessed into the base 28 of the first part 1, together with the collar 32. The keeper 40 is biased into engagement with the collar 32 by a spring 41 or any other form of suitable biasing means, to prevent rotation of the collar 32. To release the collar 32, the actuator is pressed, to move the keeper 40 out of engagement with the collar 32 and into a receiving space 42.

(33) The collar 32 is fitted onto the flats 33 of the bolt 34 and when the keeper 40 is disengaged, the collar 32 is free to rotate with the bolt 34 to allow for screw threaded height adjustment of the bolt 34 in the passage 6 in the raised section 5. When the actuator 31 is released, the collar 32 is again locked against rotation, in order to also prevent the bolt 34 from rotating, which secures the bolt 34 from unintended height adjustment.

(34) FIGS. 10 to 12 are bottom views of the pivot block 10, where each of the shaft 19, fastener 22, actuator 31 and passage 6 are clearly shown as being accessible, to allow for adjustment and locking of the pivot block 10 through the base 28, 37 of each part 1, 2.

(35) FIGS. 13 and 14 show a track 42 in which the pivot block 10 is to be mounted, as well as a dress plate 43. The pivot block 10 has two mounting sites 44 that receive connectors 45 to anchor the pivot block 10 though holes 46 in the track 42.

(36) FIGS. 15 and 16 show the pivot block 10 installed at an end of the track 42. The connectors 45 are screwed through the holes 46 in the track 42 and into the second part 2 so that the grip 34 of each side flange 6 clamps onto portions 47 of the track 42 with corresponding profiles. The first part 1 can then be adjusted relative to the second part 2, in the manner described above. Once the first part 1 is adjusted accordingly and fixed in place by the fastener 22, the dress plate 43 is simply snap fit onto the track 42 (and/or fixed to first part by fastener) to hide the pivot block 10 from view, in order to provide a neat aesthetic. The dress plate 43 includes an elongate slot 44 that accommodates various positions of the bolt (not shown), resulting from adjustment of the first part 1. If the first part 1 needs to be further adjusted, the dress plate 43 is removed, the fastener 22 released and the cam mechanism 39 engaged to reposition the first part 1 before fixing the position again by engaging the fastener 22.

(37) Lastly, FIG. 17 shows an alternative dress plate 48 that, instead of being snap fit or clipped in place, is attached by a fastener 49 pre-assembled and held in by a fibre washer 50, the fastener 49 being received into a mating hole 51 in the second part 2 of the pivot block 10 (see FIG. 13).

LIST OF PARTS

(38) 1. First part 2. Second part 3. Body 4. Side flange 5. Raised section 6. Passage 7. Threading 8. Slide 9. Slot 10. Pivot block 11. Shoulder 12. Lock nut 13. Body 14. Side flange 15. Channel 16. Cam 17. Cover plate 18. Boss 19. Shaft 20. Aperture 21. Opening 22. Fastener 23. Opening 24. Top 25. Recess 26. Lateral slot 27. Follower 28. Base 29. Cover plate 30. Lock mechanism 31. Actuator 32. Collar 33. Flats 34. Bolt 35. Gap 36. Grip 37. Base 38. Grip 39. Cam mechanism 40. Keeper 41. Spring 42. Track 43. Dress plate 44. Mounting sites 45. Connectors 46. Holes 47. Portions 48. Alternative Dress Plate 49. Fastener 50. Washer 51. Mating Hole