Granted Patent B2

US 7,188,570 · App. 11/075,053 · Granted Mar 13, 2007

Assignee: Middle Atlantic Products, Inc.

Abstract

Claims (35)

1. An enclosure for electrical equipment, comprising:

a back section arranged to be mounted to a fixed support structure and having an open front;

a main section adapted to contain electrical equipment, the main section having an open back and hinged to said back section;

a latch mounted within one of the back section or main section, and arranged to latch the main section to the back section, the latch being actuatable between locked and unlocked positions; and

a key-operated control mechanism mounted to the main section and engaged with the latch, the key-operated control mechanism including an axially-translatable linkage and a lock, the lock being actuatable by a key, the lock adapted to engage with the linkage in a locked state so as to prevent axial translation of the linkage, the linkage having a handle at one end which protrudes from the front of the main section and being connected at the other end to the latch, wherein axial displacement of the handle by a user produces actuation of the latch, the lock being accessible from the front of the main section.

2. An enclosure according to claim 1 , wherein said main section has an open front, further comprising a door hinged to the main section and adapted to cover the open front of the main section, the door capable of being opened even when the lock is in the locked position so as to prevent axial translation of the linkage.

3. An enclosure according to claim 1 , wherein the latch is a rotary latch mounted to the back of the main section and includes a release lever, wherein the linkage is connected to the release lever such that axial displacement of the handle away from the main section causes the linkage to rotate the release lever, the rotation of the release lever causing the latch to rotate out of engagement with a striker on the back section.

4. An enclosure according to claim 1 , wherein the linkage includes a pair of linkage members adjustably connected together.

5. An enclosure for electrical equipment, comprising:

a back section arranged to be mounted to a fixed support structure and having an open front;

a main section adapted to contain electrical equipment, the main section having an open back and hinged to said back section;

a latch mounted within the main section, and arranged to latch the main section to the back section, the latch being actuatable between locked and unlocked positions; and

a key-operated control mechanism mounted to the main section and engaged with the latch, comprising a rotary cam lock and a linkage, the linkage including a handle protruding from the front of the main section being accessible from the front of the main section and a member connecting the handle with the latch, the rotary cam lock adapted to rotate into and out of engagement with a notch in the linkage, and arranged to permit a user to release the lock with a key, wherein displacement of the handle by a user produces actuation of the latch.

6. An enclosure according to claim 1 , wherein the key operated control is in an unlocked position to close the main section.

7. An enclosure according to claim 1 , wherein the latch is a rotary latch.

8. An enclosure according to claim 3 , wherein the striker comprises a substantially flat mating plate with an opening into which the latch engages.

9. An enclosure for electrical equipment, comprising:

a back pan having a back, a top, a bottom, two sides, and an open front;

a main section arranged to contain rack-mounted electrical equipment, and having an open back, a top, a bottom, two sides, and a front, the main section hinged to the back pan about a hinge axis near one of the sides between and open and a closed position, the main section being accessible through the front when in its closed position;

a latch mounted inside the main section and arranged to engage the main section with the back pan when the main section is in its closed position, thereby preventing opening of the main section;

an axially-translatable linkage mounted to the side of the main section, operable from the front of the main section, the linkage being connected to the latch for releasing the latch when the linkage is translated in the axial direction and permitting opening of the main section; and

a lock operable from the front of the main section and arranged to enable axial translation of said linkage to release said latch only when said lock is unlocked.

10. An enclosure according to claim 9 , wherein said latch is a rotary latch arranged to engage the back pan upon closing of the main section without requiring operation of the linkage or the lock.

11. An enclosure according to claim 9 , further comprising a striker mounted on the back pan and protruding toward the main section, the striker adapted to be engaged by the latch when the main section is closed.

12. An enclosure according to claim 10 , further comprising a striker mounted on the back pan and adapted to be engaged by the latch when the main section is closed, the striker arranged to cause the rotary latch to engage the striker upon closing of the main section.

13. An enclosure according to claim 10 , wherein the striker comprises a substantially flat mating plate with an opening to which the rotary latch engages.

14. An enclosure according to claim 9 , wherein the front of the main section is at least partly open, further comprising a door covering at least part of the open front of the main section, the door being capable of being opened independent of the locked state of the lock.

15. An enclosure for electrical equipment, comprising:

a back pan having a back, a top, a bottom, two sides, and an open front a striker mounted on the back pan and protruding toward the main section, the back pan having a striker extending out of the open front;

a main section arranged to contain rack-mounted electrical equipment, and having an open back, a top, a bottom, two sides, and a front, the main section hinged to the back pan about a hinge axis near one of the sides between and open and a closed position, open back of the main section being positioned against the open front of the back pan when the main section is in its closed position, the main section being accessible through the front when in its closed position;

a rotary latch mounted inside the main section adjacent to the open back, the rotary latch arranged to engage with the striker when the main section is in its closed position, thereby preventing opening of the main section, the rotary latch adapted to automatically engage with the striker when the main section is moved into the closed position;

an axially-translatable linkage mounted to the side of the main section and operable from the front of the main section, the linkage being connected to the latch for releasing the latch when the linkage is translated in the axial direction and permitting opening of the main section; and

a rotary lock operable from the front of the main section and arranged to prevent axial translation of the linkage and enable operation of said linkage to release said latch only when said lock is unlocked.

16. An enclosure according to claim 15 , wherein the front of the main section is at least partly open, further comprising a door covering at least part of the open front of the main section, the door being capable of operation independently of the latch, linkage, and lock.

17. An enclosure according to claim 15 , wherein the rotary latch includes a release lever, wherein the axially-translatable linkage is connected to the release lever and extends to the front of the main section and includes a handle protruding out of the main section, wherein axial displacement of the handle away from the main section causes the linkage to rotate the release lever, the rotation of the release lever causing the latch to rotate out of engagement with a striker.

Assignments (8)

Continuity (1)