Luminaire connection systems

1. A system for connecting luminaires, the system comprising:

a. a first luminaire comprising a receiving portion angled proximally upward and comprising a catch;

b. a second luminaire comprising an arm moveable between a raised position and a lowered position, the arm comprising a bearing portion angled distally upward, the bearing portion comprising a threaded opening;

c. a first threaded fastener comprising a head and a threaded shank for threading engagement with the threaded opening of the second luminaire, the head having a diameter greater than a width of the catch of the first luminaire, and the threaded shank having a diameter smaller than the width of the catch of the first luminaire;

wherein in an initial position when the first luminaire and the second luminaire are aligned and separated by an initial distance, the catch of the first luminaire and the threaded opening of the second luminaire are alignable, the arm of the second luminaire is positionable in the lowered position, and the first threaded fastener is engageable with the threaded opening of the second luminaire in an untightened position,

wherein in intermediate positions when the first luminaire and the second luminaire are aligned and separated by intermediate distances progressively shorter than the initial distance, the arm of the second luminaire is raised from the lowered position to the raised position as the head of the first threaded fastener abuts a distal face of the receiving portion of the first luminaire and slides diagonally upward the catch of the first luminaire, and subsequently the arm of the second luminaire is lowered from the raised position to the lowered position by gravity after the head of the first threaded fastener slides over a top edge of the catch of the first luminaire,

wherein in a final position when the first luminaire and the second luminaire are aligned and in contact, the proximal angling of the receiving portion of the first luminaire corresponds to the distal angling of the bearing portion of the arm of the second luminaire whereby the arm of the second luminaire bears flatly against the receiving portion of the first luminaire, and the first threaded fastener is engageable with the threaded opening of the second luminaire in a tightened position, with the receiving portion of the first luminaire clamped between the head of the first threaded fastener and the bearing portion of the arm of the second luminaire, to tighten connection between the first luminaire and the second luminaire.

2. A system according to claim 1 wherein

a. the second luminaire comprises a receiving portion angled proximally upward and comprises a catch;

b. the first luminaire comprises an arm moveable between a raised position and a lowered position, the arm comprising a bearing portion angled distally upward, the bearing portion comprising a threaded opening;

c. a second threaded fastener comprising a head and a threaded shank for threading engagement with the threaded opening of the first luminaire, the head having a diameter greater than a width of the catch of the first luminaire, and the threaded shank having a diameter smaller than the width of the catch of the first luminaire;

wherein in an initial position when the first luminaire and the second luminaire are aligned and separated by an initial distance, the catch of the second luminaire and the threaded opening of the first luminaire are alignable, the arm of the first luminaire is positionable in the lowered position, and the second threaded fastener is engageable with the threaded opening of the first luminaire in an untightened position,

wherein in intermediate positions when the first luminaire and the second luminaire are aligned and separated by intermediate distances progressively shorter than the initial distance, the arm of the first luminaire is raised from the lowered position to the raised position as the head of the second threaded fastener abuts a distal face of the receiving portion of the second luminaire and slides diagonally upward the catch of the second luminaire, and subsequently the arm of the first luminaire is lowered from the raised position to the lowered position by gravity after the head of the second threaded fastener slides over a top edge of the catch of the second luminaire,

wherein in a final position when the first luminaire and the second luminaire are aligned and in contact, the proximal angling of the receiving portion of the second luminaire corresponds to the distal angling of the bearing portion of the arm of the first luminaire whereby the arm of the first luminaire bears flatly against the receiving portion of the second luminaire, and the second threaded fastener is engageable with the threaded opening of the first luminaire in a tightened position, with the receiving portion of the second luminaire clamped between the head of the second threaded fastener and the bearing portion of the arm of the first luminaire, to tighten connection between the first luminaire and the second luminaire.

3. A system according to claim 2 wherein the catch of each of the receiving portions of the first luminaire and the second luminaire comprises a chamfered slot.

4. A system according to claim 3 wherein each of the first luminaire and the second luminaire comprise a plate that comprises the corresponding receiving portions.

5. A system according to claim 4 wherein respective arms of the first luminaire and the second luminaire are pivotally connected to the respective plates of the first luminaire and the second luminaire by slot and key attachment, the pivotal connection enabling the movement of the arms between the raised position and the lowered position.

6. A system according to claim 5 wherein the upward proximal angling of the receiving portion of the first luminaire and the second luminaire, and the upward distal angling of the bearing portion of the arms of the first luminaire and the second luminaire, are each defined by an angle from the horizontal of about 45 degrees to 75 degrees.

7. A system according to claim 6 wherein the angle from the horizontal is about 60 degrees.

8. A system according to claim 7 wherein the arm of the first luminaire the arm of the second luminaire are adjacent and extend in opposite directions.

9. A system according to claim 2 wherein the catch of the first luminaire comprises a chamfered slot.

10. A system according to claim 9 wherein the second luminaire comprise a plate, wherein the arm of the second luminaire is pivotally connected to the plate by slot and key attachment, the pivotal connection enabling the movement of the arm between the raised position and the lowered position.

11. A system according to claim 10 wherein the upward proximal angling of the receiving portion of the first luminaire, and the upward distal angling of the bearing portion of the arm of the second luminaire, are each defined by an angle from the horizontal of about 45 degrees to 75 degrees.

12. A system according to claim 11 wherein the angle from the horizontal is about 60 degrees.

13. A system according to claim 2 further comprising first and second elongated strips, wherein the first elongated strip is disposable in a slot in a sidewall of the first luminaire and engageable with a corresponding slot in a sidewall of the second luminaire, and the second elongated strip is disposable in a slot in the sidewall of the first luminaire and engageable with a corresponding slot in the sidewall of the second luminaire.

14. A method of connecting luminaires comprising:

a. providing a system according to claim 2 ;

b. positioning the first luminaire and the second luminaire in the initial position, comprising:

i. simultaneously aligning the catch of the first luminaire and the threaded opening of the second luminaire, and aligning the catch of the second luminaire and the threaded opening of the first luminaire, to align the first luminaire and the second luminaire;

ii. positioning the arms of the first luminaire and the second luminaire in the lowered position;

iii. engaging the first threaded fastener with the threaded opening of the second luminaire in the untightened position; and

iv. engaging the second threaded fastener with the threaded opening of the first luminaire in the untightened position;

c. bringing the first luminaire and the second luminaire closer together into the intermediate positions, comprising:

i. simultaneously allowing:

1. the arm of the second luminaire to be raised from the lowered position to the raised position as the head of the first threaded fastener abuts a distal face of the receiving portion of the first luminaire and slides diagonally upward the catch of the first luminaire; and

2. the arm of the first luminaire to be raised from the lowered position to the raised position as the head of the second threaded fastener abuts a distal face of the receiving portion of the second luminaire and slides diagonally upward the catch of the second luminaire;

ii. simultaneously allowing:

1. the arm of the second luminaire to be lowered from the raised position to the lowered position by gravity after the head of the first threaded fastener slides over a top edge of the catch of the first luminaire; and

2. the arm of the first luminaire to be lowered from the raised position to the lowered position by gravity after the head of the second threaded fastener slides over a top edge of the catch of the second luminaire;

d. bringing the first luminaire and the second luminaire into contact with each other in the final position, comprising:

i. simultaneously allowing:

1. the arm of the second luminaire to bear flatly against the receiving portion of the first luminaire; and

2. the arm of the first luminaire to bear flatly against the receiving portion of the second luminaire; and

ii. to tighten connection between the first luminaire and the second luminaire:

1. engaging the first threaded fastener with the threaded opening of the second luminaire in the tightened position, with the receiving portion of the first luminaire clamped between the head of the first threaded fastener and the bearing portion of the arm of the second luminaire; and

2. engaging the second threaded fastener with the threaded opening of the first luminaire in the tightened position, with the receiving portion of the second luminaire clamped between the head of the second threaded fastener and the bearing portion of the arm of the first luminaire.

15. A method of connecting luminaires comprising:

a. providing a system according to claim 1 ;

b. positioning the first luminaire and the second luminaire in the initial position, comprising:

i. aligning the catch of the first luminaire and the threaded opening of the second luminaire to align the first luminaire and the second luminaire;

ii. positioning the arm of the second luminaire in the lowered position; and

iii. engaging the first threaded fastener with the threaded opening of the second luminaire in the untightened position;

c. bringing the first luminaire and the second luminaire closer together into the intermediate positions, comprising:

i. allowing the arm of the second luminaire to be raised from the lowered position to the raised position as the head of the first threaded fastener abuts a distal face of the receiving portion of the first luminaire and slides diagonally upward the catch of the first luminaire; and

ii. allowing the arm of the second luminaire to be lowered from the raised position to the lowered position by gravity after the head of the first threaded fastener slides over a top edge of the catch of the first luminaire; and

d. bringing the first luminaire and the second luminaire into contact with each other in the final position, comprising:

i. allowing the arm of the second luminaire to bear flatly against the receiving portion of the first luminaire; and

ii. engaging the first threaded fastener with the threaded opening of the second luminaire in the tightened position, with the receiving portion of the first luminaire clamped between the head of the first threaded fastener and the bearing portion of the arm of the second luminaire, to tighten connection between the first luminaire and the second luminaire.