Pre-mounted lock for a door of a low voltage enclosure

Patent metadata

Field	Value
Publication number	US-12497809-B2
Application number	US-202318171451-A
Country	US
Kind code	B2
Filing date	Feb 20, 2023
Priority date	Feb 23, 2022
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

Described herein is a pre-mounted lock assembly for a door of a low and medium voltage electrical cabinet including a containment profile that develops along a main direction defining a seat. A mechanism is arranged in said seat. Said mechanism includes at least a rod and at least one guide element for said rod. Said guide element is rigidly connected to said profile. The pre-mounted lock assembly also includes fixing means for fixing it to said door following the connection of said at least one guide element to said profile, wherein said fixing means are arranged on said profile and/or on said at least one guide element.

First claim

The invention claimed is:

1 . A pre-mounted lock assembly for a door of a low and medium voltage electrical cabinet, wherein said pre-mounted lock assembly comprises:
a containment profile that develops along a main direction defining a seat; a mechanism housed in said seat, wherein said mechanism comprises at least one rod and at least one guide element for said at least one rod, wherein said at least one guide element is rigidly connected to said containment profile via at least one first connector; and at least one second connector configured to fix said pre-mounted lock assembly to said door following a connection of said at least one guide element to said containment profile, wherein said at least one second connector is integral with said at least one guide element, and wherein said at least one second connector is configured as a snap-fit connector which engages opposite edges of a slot formed through said door.

2 . The pre-mounted lock assembly according to claim 1 , wherein the first connector comprises a snap-fit connector.

3 . The pre-mounted lock assembly according to claim 1 , wherein said containment profile comprises a curved portion and two flat portions that develop on a same plane from opposite regions of said curved portion, wherein said flat portions are separated so that an opening is defined therebetween for the insertion of said mechanism in said seat.

4 . The pre-mounted lock assembly according to claim 3 , wherein said opening comprises at least one enlargement for the insertion of said at least one guide element of said at least one rod.

5 . The pre-mounted lock assembly according to claim 1 , wherein said mechanism comprises a first rod, a second rod, and a third rod that connects the first rod to the second rod, wherein the first rod and the second rod comprise a through slot defined close to an end closest to said third rod, said through slot configured so as to be engaged by a bent end of said third rod.

6 . The pre-mounted lock assembly according to claim 1 , wherein said mechanism comprises a plurality of said at least one guide element, one for each of a plurality of said at least one rod.

7 . The pre-mounted lock assembly according to claim 1 , wherein said at least one guide element comprises a body defining a longitudinal cavity through which said rod is inserted, said body comprising first surfaces that make said body and said rod mutually slidable after their placement in said seat of said containment profile, said body comprising second surfaces that guide laterally said rod with respect to said body, and vice versa.

8 . The pre-mounted lock assembly according to claim 7 , wherein said body comprises an internal side and an external side mutually opposed, wherein said first connector is configured to connect said guide element to said containment profile is arranged on said external side of said body.

9 . The pre-mounted lock assembly according to claim 8 , wherein said first connector comprises a couple of first snap-fit connectors each of which is configured to engage with a corresponding slot defining through said containment profile.

10 . The pre-mounted lock assembly according to claim 8 , wherein said second connector is arranged on the external side of said body guide element.

11 . The pre-mounted lock assembly according to claim 7 , wherein said body also comprises an alignment element protruding from its external side for contacting an alignment surface of a fixed locking element arranged on a supporting structure of said low and medium voltage electrical cabinet.

12 . A low voltage enclosure comprising:
at least one door, the at least one door further comprising at least one lock assembly, said at least one lock assembly comprising: a containment profile that develops along a main direction defining a seat; a mechanism housed in said seat, wherein said mechanism comprises at least one rod and at least one guide element for said at least one rod, wherein said at least one guide element is rigidly connected to said containment profile via at least one first connector; and at least one second connector configured to fix said lock assembly to said door following a connection of said at least one guide element to said containment profile, wherein said at least one second connector is integral with said at least one guide element, and wherein said at least one second connector is configured as a snap-fit connector which engages opposite edges of a slot formed through said door.

13 . The low voltage enclosure according to claim 12 , wherein the first connector comprises a snap-fit connector.

14 . The low voltage enclosure according to claim 12 , wherein said containment profile comprises a curved portion and two flat portion that develop on a same plane from opposite regions of said curved portion, said flat portions being separated so that an opening is defined therebetween for insertion of said mechanism in said seat.

15 . The low voltage enclosure according to claim 14 , wherein said opening comprises at least one enlargement for the insertion of said at least one guide element of said at least one rod.

16 . The low voltage enclosure according to claim 12 , wherein said mechanism comprises a first rod, a second rod, and a third rod that connects the first rod to the second rod, wherein the first rod and the second rod comprise a through slot defined close to an end closest to said third rod, said through slot configured so as to be engaged by a bent end of said third rod.

17 . The low voltage enclosure according to claim 12 , wherein said mechanism comprises a plurality of guide elements for each of said at least one rod.

18 . The low voltage enclosure according to claim 12 , wherein said at least one said guide element comprises a body defining a longitudinal cavity through which said rod is inserted, said body comprising first surfaces that make it and said rod mutually slidable after their placement in said seat of said containment profile, said body comprising second surfaces that guide laterally said rod with respect to said body, and vice versa.

Assignees

• Abb Spa

Inventors

• Nava Giuseppe
• Arienti Marco
• Maggi Cristiano

Classifications

• H02B1/30

  Cabinet-type casings; Parts thereof or accessories therefor · CPC title

• E05C9/22

  Guides for sliding bars, rods or cables · CPC title

• E05C9/06

  with three or more sliding bars {(for watertight doors in bulkheads of vessels B63B43/24, B63B43/32; for safe doors E05B65/0075; covers or similar closures for pressure vessels F16J13/00)} · CPC title

• H02B1/38

  Hinged covers or doors · CPC title

• E05B9/08

  Fastening {locks or fasteners or parts thereof, e.g.} the casings of latch-bolt locks or cylinder locks to the wing {(on glass wings E05B65/0025)} · CPC title