Interlock mechanism for a telecommunications cabinet and related cabinet assemblies
The interlock mechanism in telecommunications cabinets ensures the rear door is closed and locked by prohibiting door movement unless the front door is opened first and the rear door is closed, addressing the issue of technicians forgetting to secure the cabinet.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-26
AI Technical Summary
There is a need for a mechanism to remind technicians to close and lock the rear door of a telecommunications cabinet before leaving the site, as they often forget to do so.
An interlock mechanism is integrated into the telecommunications cabinet that prohibits the rear door from being opened when the front door is closed and prevents the front door from being closed unless the rear door is closed and locked, using a bracket and rod assembly that interacts with a locking mechanism to ensure proper door alignment and locking.
The interlock mechanism ensures that the rear door is always closed and locked before a technician leaves the site, preventing unauthorized access and ensuring the security of the cabinet's contents.
Smart Images

Figure CN2025089490_26032026_PF_FP_ABST
Abstract
Description
INTERLOCK MECHANISM FOR A TELECOMMUNICATIONS CABINET AND RELATED CABINET ASSEMBLIESRelated Application (s)
[0001] The present application claims priority to and the benefit of Chinese Application for Invention No. 202411314172.6 filed September 20, 2024, the disclosures of which hereby are incorporated by reference herein in full.Field
[0002] The present invention relates to telecommunications equipment, and more particular to, an interlock mechanism for a telecommunications cabinet and related telecommunications cabinets assemblies.Background
[0003] The use and construction of equipment enclosures for housing electronics and telecommunications equipment is well known. The enclosure (or telecommunications cabinet) is generally a rectangular box having side walls, a rear wall, a floor, and a ceiling. These enclosures are typically constructed to have at least one sealed weatherproof compartment in which the equipment is housed. The enclosure will be provided with an opening for access into the equipment compartment or compartments thereof, and a door for being opened and closed on the opening. In some instances, the enclosure has a front door and a rear door that provide front and rear access, respectively, into the equipment compartment or compartments. Occasionally, technicians will forget to close and / or lock the rear door before leaving the telecommunications site. There may be desire for a mechanism to help to remind technicians to close and lock the rear door of the cabinet before leaving the telecommunications site.Summary
[0004] An aspect of the present invention is directed to a telecommunications cabinet. The cabinet includes a rear wall, opposing side walls, a floor, and a ceiling. A front door is hinged to one of the side walls and a rear door having a locking mechanism is hinged to the rear wall or one of the side walls. Together the walls, doors, floor and ceiling define an internal cavity configured to have electronics equipment mounted therein. The cabinet further includes an interlock mechanism mounted within the internal cavity. The interlock mechanism is configured to prohibit the rear door from being moved into an opened position when the front door is in a closed position and configured to prohibit the front door from being moved to the closed position unless the rear door is in a closed position.
[0005] Another aspect of the present invention is directed to an interlock mechanism for a telecommunications cabinet. The interlock mechanism includes a bracket assembly and a rod assembly. The bracket assembly includes a first bracket member and a second bracket member. The second bracket member is configured to be affixed to an interior surface of a rear wall of the telecommunications cabinet and the first bracket member is movably coupled to the second bracket member. The rod assembly is configured to be secured within an internal cavity of the telecommunications cabinet and includes a channel member and a rod member configured to engage with the bracket assembly. The rod member is configured to move longitudinally relative to the channel member in a first direction when a front door of the cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position.
[0006] Another aspect of the present invention is directed to a telecommunications cabinet. The cabinet includes a rear wall, opposing side walls, a floor, and a ceiling. A front door is hinged to one of the side walls and a rear door having a locking mechanism is hinged to the rear wall or one of the side walls. Together the walls, doors, floor and ceiling define an internal cavity configured to have electronics equipment mounted therein. The cabinet further includes an interlock mechanism mounted within the internal cavity. The interlock mechanism includes a bracket assembly and a rod assembly. The bracket assembly includes a first bracket member and a second bracket member. The second bracket member affixed to an interior surface of the rear wall of the telecommunications cabinet and the first bracket member is movably coupled to the second bracket member. The rod assembly is secured within an internal cavity of the telecommunications cabinet and includes a channel member and a rod member configured to engage with the bracket assembly. The rod member is configured to move longitudinally relative to the channel member in a first direction when a front door of the cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position. The interlock mechanism is configured to prohibit the rear door from being moved into an opened position when the front door is in the closed position and configured to prohibit the front door from being moved to the closed position unless the rear door is in a closed position.
[0007] Another aspect of the present invention is directed to an interlock mechanism for a telecommunications cabinet. The interlock mechanism includes a rod assembly configured to be mounted to a side wall of the telecommunications cabinet. The rod assembly includes a rod member. The interlock mechanism further includes a locking assembly including a biasing member coupled to a wheel member. The wheel member has two recesses, one recess configured to receive the rod member of the rod assembly and the other recess configured to receive a locking mechanism of a rear door of the telecommunications cabinet. The rod member is configured to move along a longitudinal axis relative to the side wall in a first direction when a front door of the telecommunications cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position, and the wheel member is configured to rotate when engaged or disengaged by the locking mechanism of the rear door.
[0008] It is noted that aspects of the invention described with respect to one embodiment, may be incorporated in a different embodiment although not specifically described relative thereto. That is, all embodiments and / or features of any embodiment can be combined in any way and / or combination. Applicant reserves the right to change any originally filed claim and / or file any new claim, accordingly, including the right to be able to amend any originally filed claim to depend from and / or incorporate any feature of any other claim or claims although not originally claimed in that manner. These and other objects and / or aspects of the present invention are explained in detail in the specification set forth below. Further features, advantages and details of the present invention will be appreciated by those of ordinary skill in the art from a reading of the figures and the detailed description of the preferred embodiments that follow, such description being merely illustrative of the present invention.Brief Description of the Drawings
[0009] FIG. 1A is a front perspective view of a telecommunications cabinet according to embodiments of the present invention.
[0010] FIG. 1B is a rear perspective view of the cabinet shown in FIG. 1A.
[0011] FIG. 2A is a front perspective view of the cabinet shown in FIGS. 1A-1B with the front door in an open position according to embodiments of the present invention.
[0012] FIG. 2B is a rear perspective view of the cabinet shown in FIG. 2A.
[0013] FIG. 3A is a front perspective view of the cabinet shown in FIGS. 1A-1B with the front and rear doors in an opened position according to embodiments of the present invention.
[0014] FIG. 3B is a rear perspective view of the cabinet shown in FIG. 3A.
[0015] FIG. 4A is a perspective view of an interlock mechanism for the cabinet shown in FIGS. 1A-1B according to embodiments of the present invention.
[0016] FIG. 4B is a side view of the movable rod and corresponding bracket for the interlock mechanism shown in FIG. 4A.
[0017] FIG. 4C is a front perspective view of the locking bracket for the interlock mechanism shown in FIG. 4A.
[0018] FIG. 4D is bottom perspective view of the locking bracket shown in FIG. 4C.
[0019] FIG. 4E is a top view of the locking bracket shown in FIG. 4C.
[0020] FIG. 5A is a cross-sectional perspective side view of the cabinet shown in FIGS. 1A-1B taken along line A-A and illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet (i.e., when the front and rear doors are in a closed position) according to embodiments of the present invention.
[0021] FIG. 5B is an enlarged perspective side view of the interlock mechanism within the cabinet as shown in FIG. 5A.
[0022] FIG. 6A is an enlarged view of the locking bracket and an end of the movable rod for the interlock mechanism illustrating the interaction of the movable rod and locking bracket when the front and rear doors of the cabinet are in a closed position according to embodiments of the present invention and as shown in FIGS. 1A-1B.
[0023] FIG. 6B is a top perspective view of the locking bracket shown in FIG. 6A.
[0024] FIG. 6C is an enlarged view of an opposing end of the movable rod for the interlocking mechanism illustrating the interaction of the movable rod and the front door of the cabinet when the front door is in a closed position according to embodiments of the present invention and as shown in FIGS. 1A-1B.
[0025] FIG. 7A is a cross-sectional perspective side view of the cabinet shown in FIGS. 2A-2B taken along line B-B and illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet (i.e., when the front is in an opened position and rear door is in a closed position) according to embodiments of the present invention.
[0026] FIG. 7B is an enlarged perspective side view of the interlock mechanism within the cabinet as shown in FIG. 7A.
[0027] FIG. 8A is an enlarged view of the locking bracket and the end of the movable rod for the interlock mechanism illustrating the interaction of the movable rod and locking bracket when the front door of the cabinet is in an opened position and rear door is in a closed position according to embodiments of the present invention and as shown in FIGS. 2A-2B.
[0028] FIG. 8B is a top perspective view of the locking bracket shown in FIG. 8A.
[0029] FIG. 8C is an enlarged view of the opposing end of the movable rod for the interlocking mechanism illustrating the interaction of the movable rod and the front door of the cabinet when the front door is in an opened position according to embodiments of the present invention and as shown in FIGS. 2A-2B.
[0030] FIG. 9A is a partial top front perspective view of the cabinet shown in FIGS. 3A-3B illustrating the positioning of the interlock mechanism relative to the front and rear doors of the cabinet (i.e., when the front and rear doors are in an opened position) according to embodiments of the present invention.
[0031] FIG. 9B is a partial top rear perspective view of the cabinet shown in FIG. 9A.
[0032] FIG. 10A is a cross-sectional perspective side view of the cabinet shown in FIGS. 3A-3B taken along line C-C and illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet (i.e., when the front and rear doors are in an opened position) according to embodiments of the present invention.
[0033] FIG. 10B is an enlarged perspective side view of the interlock mechanism within the cabinet as shown in FIG. 10A.
[0034] FIG. 11A is an enlarged view of the locking bracket and the end of the movable rod for the interlock mechanism illustrating the interaction of the movable rod and locking bracket when the front and rear doors of the cabinet are in an opened position according to embodiments of the present invention and as shown in FIGS. 3A-3B.
[0035] FIG. 11B is a top perspective view of the locking bracket shown in FIG. 11A.
[0036] FIG. 11C is an enlarged view of the opposing end of the movable rod for the interlocking mechanism illustrating the interaction of the movable rod and the front door of the cabinet when the front door is in an opened position according to embodiments of the present invention and as shown in FIGS. 3A-3B.
[0037] FIG. 12 is a top perspective view of another interlock mechanism for a cabinet according to embodiments of the present invention.
[0038] FIG. 13A is an enlarged perspective view of a locking bracket of the interlock mechanism shown in FIG. 12.
[0039] FIG. 13B is a top perspective view of the locking bracket shown in FIG. 13A.
[0040] FIGS. 14A-14C illustrate operation of the locking bracket shown in FIG. 13A. FIG. 14A shows the locking bracket when the front and rear doors of the cabinet are in an opened position. FIG. 14B shows the locking bracket when the front door is in an opened position and the rear door is in a closed position. FIG. 14C shows the locking bracket when the front and rear doors are both in a closed position.
[0041] FIG. 15A is a partial top front perspective view of the cabinet illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet when the front and rear doors are in an opened position according to embodiments of the present invention.
[0042] FIG. 15B is a partial top front perspective view of the cabinet illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet when the front door is in an opened position and the rear door is a closed position according to embodiments of the present invention.
[0043] FIG. 15C is a partial top front perspective view of the cabinet illustrating positioning of the interlock mechanism relative to the front and rear doors of the cabinet when the front and rear doors are a closed position according to embodiments of the present invention.Detailed Description
[0044] The present invention now is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0045] In the figures, certain layers, components, or features may be exaggerated for clarity, and broken lines illustrate optional features or operations unless specified otherwise. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0046] It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer, or section. Thus, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention. The sequence of operations (or steps) is not limited to the order presented in the claims or figures unless specifically indicated otherwise.
[0047] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the specification and relevant art and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein. Well-known functions or constructions may not be described in detail for brevity and / or clarity.
[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a" , "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising" , when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0049] As used herein, phrases such as "between X and Y" and "between about X and Y" should be interpreted to include X and Y. As used herein, phrases such as "between about X and Y" mean "between about X and about Y. " As used herein, phrases such as "from about X to Y" mean "from about X to about Y. "
[0050] It will be understood that when an element is referred to as being "on" , "attached" to, "connected" to, "coupled" with, "contacting" , etc., another element, it can be directly on, attached to, connected to, coupled with or contacting the other element or intervening elements may also be present. In contrast, when an element is referred to as being, for example, "directly on" , "directly attached" to, "directly connected" to, "directly coupled" with or "directly contacting" another element, there are no intervening elements present. It will also be appreciated by those of skill in the art that references to a structure or feature that is disposed "adjacent" another feature may have portions that overlap or underlie the adjacent feature.
[0051] Spatially relative terms, such as "under" , "below" , "lower" , "over" , "upper" , "lateral" , "left" , "right" and the like, may be used herein for ease of description to describe one element or feature’s relationship to another element (s) or feature (s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, elements described as "under" or "beneath" other elements or features would then be oriented "over" the other elements or features. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the descriptors of relative spatial relationships used herein interpreted accordingly.
[0052] Embodiments of the present invention are directed to an interlock mechanism for front and rear doors of a telecommunications cabinet. According to embodiments of the present invention, interlock mechanism prohibits the rear door of the cabinet from being opened when the front door is closed, and only when the front door is opened, may the rear door be opened. In addition, according to embodiments of the present invention, if the rear door of the cabinet is opened, the interlock mechanism prohibits the front door from being closed, unless the rear door is first closed. Embodiments of the present invention will now be described in further detail below with reference to FIG. 1A through FIG. 15C.
[0053] Referring to FIGS. 1A-1B, FIGS. 2A-2B, and FIGS. 3A-3B, a telecommunications cabinet (or enclosure) 100 according to embodiments of the present invention is illustrated. The telecommunications cabinet 100 is generally a rectangular box having opposing side walls 130, a rear wall 140, a floor 110, and a ceiling 120. In some embodiments, the telecommunications cabinet 100 further includes a front door 150 hinged to one of the side walls 130 and a rear door 170 hinged to the rear wall 140 or one of the side walls 130. Together these components define an internal cavity 180 which electronics equipment may be mounted therein.
[0054] As shown in FIG. 1A, in some embodiments, the front door 150 includes a handle 152 and locking mechanism 154. As shown in FIG. 1B, FIG. 2B, and FIG. 3A, in some embodiments, the rear door 170 also includes a handle 172 which may be coupled to a locking mechanism 190 (see also, e.g., FIGS. 6A-6B and FIGS. 8A-8B) . In some embodiments, the front door 150 further includes a cooling system 160 (e.g., a heat exchanger system) integral with or coupled thereto which helps regulate the temperature within the internal cavity 180 of the cabinet 100.
[0055] FIGS. 1A-1B illustrate the telecommunications cabinet 100 when the front door 150 and the rear door 170 are both in a closed position according to embodiments of the present invention. FIGS. 2A-2B illustrate the telecommunications cabinet 100 when the front door 150 is in an opened position and the rear door 170 is in a closed position according to embodiments of the present invention. FIGS. 3A-3B illustrates the telecommunications cabinet 100 when the front door 150 and the rear door 170 are both in an opened position according to embodiments of the present invention. As described in further detail below, according to embodiments of the present invention, the telecommunications cabinet 100 further includes an interlock mechanism 200 configured to prevent the opening and / or closing of the front door 150 or rear door 170 based on the position (i.e., opened or closed) of the other door.
[0056] Referring to FIGS. 4A-4E, the interlock mechanism 200 according to embodiments of the present invention is illustrated in more detail. As shown in FIG. 4A, in some embodiments, the interlock mechanism 200 includes a rod assembly 210 and a bracket assembly 250. In some embodiments, the rod assembly 210 is configured to be secured within the internal cavity 180 of the cabinet 100 (e.g., mounted to a shelf or platform 185 within the cabinet 100) and the bracket assembly 250 is configured to be secured to an interior surface of the rear wall 140 of the cabinet 100 (see, e.g., FIGS. 9A-9B) . As described in further detail below, the interaction between the rod assembly 210 with the bracket assembly 250 (i.e., engagement and disengagement) will prevent the opening and / or closing of the front and rear doors 150, 170 of the cabinet 100.
[0057] As shown in FIGS. 4A-4B, in some embodiments, the rod assembly 210 includes a channel member 212 and an elongate rod member 214. The channel member 212 is configured to be secured to the shelf or platform 185 within the cabinet 185 (e.g., via fasteners 219) . In some embodiments, the rod assembly 210 comprises a plurality of bracket members 217 that may be used to secure the channel member 212 to the shelf or platform 185 (e.g., via fasteners 219) . The rod member 214 is configured to traverse or slide longitudinally relative to the channel member 212 as the front door 150 of the cabinet 100 is moved from a closed position to an opened position and vice versa (i.e., in a first direction and an opposing second direction) .
[0058] As shown in FIGS. 4A-4B, in some embodiments, opposing ends of the channel member 212 may have an aperture 215 through which the rod member 214 is configured to extend. As described in further detail below, one end 211a of the rod member 214 is configured to engage with the bracket assembly 250 of the interlock mechanism 200. In some embodiments, a stop member 213 resides at the opposing end 211b of the rod member 214. In some embodiments, the rod assembly 210 further includes a biasing member 216 (e.g., a spring or similar device) . In some embodiments, the biasing member 216 resides on the rod member 214 between the stop member 213 and the end of the channel member 212. As described in further detail below, when the front door 150 is moved into a closed position, a bracket 155 secured to an interior surface of the front door 150 (or the interior surface of the door 150) engages (contacts) the stop member 213 and pushes the rod member 214 (i.e., the rod member 214 slides relative to the channel member 212) , thereby compressing the biasing member 216 between the stop member 213 and the end of the channel member 212 (see, e.g., FIG. 6C) .
[0059] FIGS. 4C-4E illustrates the bracket assembly 250 of the interlock mechanism 200 in greater detail. As shown in FIGS. 4C-4E, in some embodiments, the bracket assembly 250 includes a first (outer) bracket member 260 and a second (inner) bracket member 270. In some embodiments, the outer bracket member 260 is affixed to an interior surface of the rear wall 140, for example, via fasteners 256 received through one or more respective apertures 266 (see also, e.g., FIG. 6A) . The inner bracket member 270 is movably coupled to the outer bracket member 270. For example, in some embodiments, the inner bracket member 270 comprises a slot 272 and the outer bracket member 270 comprises a first aperture 262. A fastener 255 is received through the first aperture 262 in the outer bracket member 270 and the slot 272 in the inner bracket member 270. The fastener 255 is configured to traverse (slide) within the slot 272, thereby allowing the inner bracket member 270 to move or slide relative to the outer bracket member 270.
[0060] As shown in FIGS. 4C-4D, in some embodiments, the outer bracket member 260 comprises a second aperture 264 and the inner bracket member 270 comprises an aperture 274. As the inner bracket member 270 moves relative to the outer bracket member 260, the aperture 274 in the inner bracket 270 is configured to align with the second aperture 264 in the outer bracket member 260. As described in further detail below, when the apertures 264, 274 are aligned, an end 211a of the rod member 214 may be received through the aligned apertures 264, 274 and engage with the bracket assembly 250 (see, e.g., FIGS. 6A-6B) .
[0061] As shown in FIGS. 4D-4E, in some embodiments, the inner bracket member 270 further comprises a biasing section 276 and a lock section 278. In some embodiments, at least one pin 252 is coupled to an interior surface of the outer bracket member 260 and received through a corresponding aperture 278a in the biasing section 276 of the inner bracket member 270. As shown in FIG. 4D, in some embodiments, the bracket assembly 250 comprises two pins 252. In some embodiments, a biasing member 254 (e.g., a spring or similar device) extends circumferentially around each pin 252 and extends through the corresponding aperture 278a in the biasing section 276 of the inner bracket member 270. As described in further detail below, when the rear door 170 is moved into a closed position and the locking mechanism 190 is moved to a lock position, the lock section 278 of the inner bracket member 270 is configured to engage with the locking mechanism 190, which moves the inner bracket member 270 relative to the outer bracket member 260, thereby compressing the biasing member 254 between the biasing section 276 of the inner bracket member 270 and the interior surface of the outer bracket member 260 (i.e., biasing force BF1) (see, e.g., FIG. 6B) .
[0062] FIGS. 5A-5B and FIGS. 6A-6C illustrate exemplary operation of the interlock mechanism 200 according to embodiments of the present invention when the front door 150 and the rear door 170 of the telecommunications cabinet 100 are in a closed position (as also shown in FIGS. 1A-1B) . In general, as shown in FIGS. 5A-5B, when the front door 150 is moved into a closed position, the front door 150 (e.g., a bracket 155 mounted to an interior surface of the front door 150) is configured to engage or contact the stop member 213 on the end 211b of the rod member 214 of the interlock mechanism 200 and pushes the rod member 214 in a first direction (i.e., the rod member 214 traverses or slides relative to the channel member 212 of the rod assembly 210, as indicated by arrows F1) until the opposing end 211a of the rod member 214 engages with the bracket assembly 250. When the rod member 214 is engaged with the bracket assembly 250, the rear door 170 of the cabinet 100 is prohibited from being opened.
[0063] FIGS. 6A-6B illustrate a detailed view of the engagement of the rod member 214 with the bracket assembly 250. As shown in FIGS. 6A-6B, the rear door 170 of the cabinet 100 is in a closed position. As discussed above, in some embodiments, a locking mechanism 190 is coupled to the handle 172 (e.g., a swing handle) of the rear door 170. In some embodiments, the locking mechanism 190 may comprise an upper beam member 192a, a lower beam member 192b, a roller member 194, and a lock cam 193. As shown in FIG. 6A, in some embodiments, the upper beam member 192a, the lower beam member 192b, and the roller member 194 are coupled to the lock cam 193. The upper beam member 192a and the lower beam member 193b may be pivotably coupled to the lock cam 193 and extend vertically in opposing directions therefrom. In some embodiments, the opposing ends of the upper and lower beam members 192a, 192b are configured to engage with a lock feature (not shown) on the rear wall 140 of the cabinet 100 to help prevent the rear door 170 from being opened. In some embodiments, the roller member 194 is fixedly coupled to the lock cam 193 and extends outwardly therefrom. In some embodiments, the lock cam 193 is rotatably coupled to the handle 172.
[0064] When the rear door 170 is moved into a closed position, the handle 172 is rotated in a first direction (i.e., into a locked position) , which simultaneously rotates the lock cam 193 and moves the roller member 194 into engagement with the bracket assembly 250 of the interlock mechanism 200. At the same time, the upper and lower beam members 192a, 193b pivot relative to the lock cam 193 and move vertically in opposing directions to engage the respective locking features on the rear wall 140 of the cabinet 100.
[0065] As shown in FIGS. 6A-6B, when the roller member 194 engages with the bracket assembly 250, the roller member 194 forces the inner bracket member 270 to move (slide) relative to the outer bracket member 260 in a first direction (as indicated by arrow F3) , which compresses the biasing member 254 and allows the respective apertures 264, 274 in the outer and inner bracket members 260, 270 to become aligned. The end 211a of the rod member 214 is then able to be received through the aligned apertures 264, 274 in the outer and inner bracket members 260, 270 (as indicated by arrow F1) . As further shown in FIG. 6A, when the rod member 214 is received through the aligned apertures 264, 274 of the outer and inner bracket members 260, 270, the rod member 214 is positioned below the roller member 194 of the locking mechanism 190, thereby preventing the roller member 194 from disengaging from the bracket assembly 250 (e.g., moving in a downward direction. In other words, the handle 172 and lock cam 193 are unable to rotate in a second opposite direction (i.e., into an unlocked position) which simultaneously prevents the upper and lower beam members 192a, 193b from disengaging from the respective locking features on the rear wall 140 of the cabinet 100, and thus, the rear door 170 cannot be opened.
[0066] As shown in FIG. 6C, when the front door 150 is moved to a closed position, the bracket 155 on an interior surface of the front door 150 contacts the stop member 213 on the rod member 214 which forces the rod member 214 to move or slide relative to the channel member 214 (as indicated by arrow F1) and into engagement with the bracket assembly 250. This movement also compresses the biasing member 216 between the stop member 213 and the end of the channel member 215 (i.e., the biasing member 216 is moved into a compressed state) .
[0067] FIGS. 7A-7B and FIGS. 8A-8C illustrate exemplary operation of the interlock mechanism 200 according to embodiments of the present invention when the front door 150 of the telecommunications cabinet 100 is moved to an opened position and the rear door 170 is still in a closed position (as also shown in FIGS. 2A-2B) . In general, as shown in FIGS. 7A-7B, when the front door 150 is moved into an opened position, the front door 150 (e.g., the bracket 155 mounted to the interior surface of the front door 150) disengages from the stop member 213 on the end 211b of the rod member 214 of the interlock mechanism 200, and as a result, decompresses the biasing member 216 (i.e., the biasing member 216 returns to a relaxed state) . As the biasing member 216 returns to the relaxed state, the biasing member 216 forces the rod member 214 in a second opposing direction (i.e., the rod member 214 traverses or slides relative to the channel member 212 of the rod assembly 210, as indicated by arrows F2) . As the rod member 214 moves in the second direction, the opposing end 211a of the rod member 214 becomes disengaged from the bracket assembly 250 (i.e., the end 211a of the rod member 214 moves outwardly from the aligned apertures 264, 274 in the outer and inner bracket members 260, 270. When the rod member 214 is disengaged from the bracket assembly 250, the rear door 170 of the cabinet 100 is no longer prohibited from being opened (see, e.g., FIGS. 8A-8B) .
[0068] FIGS. 8A-8B illustrate a detailed view of the disengagement of the rod member 214 from the bracket assembly 250. As shown in FIGS. 7A-7B, the rear door 170 of the cabinet 100 is still in a closed position and the roller member 194 is engaged with the bracket assembly 250. However, now with the end 211a of the rod member 214 no longer inserted through the aligned apertures 264, 274 in the outer and inner bracket members 260, 270, the roller member 194 is able to be disengaged from the bracket assembly 250 (e.g., moving in a downward direction, as indicated by arrow F5) . In other words, the handle 172 and lock cam 193 are able to rotate in the second opposite direction (i.e., into an unlocked position) , thereby allowing the upper and lower beam members 192a, 193b to disengage from the respective locking features on the rear wall 140 of the cabinet 100, and thus, the rear door 170 can be opened.
[0069] As shown in FIG. 8C, when the front door 150 is moved to an opened position, the front door 150 (e.g., the bracket 155 on an interior surface of the front door 150) no longer contacts the stop member 213 on the rod member 214 which allows the biasing member 216 between the stop member 213 and the end of the channel member 215 to decompress (i.e., the biasing member 216 is moved into a relaxed state) which causes the rod member 214 to move or slide relative to the channel member 214 (as indicated by arrow F2) .
[0070] FIGS. 9A-9B, FIGS. 10A-10B, and FIGS. 11A-11C illustrate exemplary operation of the interlock mechanism 200 according to embodiments of the present invention when the front and rear doors 150, 170 are moved to an opened position (as also shown in FIGS. 3A-3B) . In general, as described above, and as shown in FIGS. 9A-9B and FIGS. 10A-10B, when the front door 150 is moved into an opened position, the front door 150 (e.g., the bracket 155 mounted to the interior surface of the front door 150) disengages from the stop member 213 on the end 211b of the rod member 214 of the interlock mechanism 200 which allows the biasing member 216 to decompress (i.e., the biasing member 216 returns to a relaxed state) . The biasing member 216 forces the rod member 214 in the second opposing direction (i.e., the rod member 214 traverses or slides relative to the channel member 212 of the rod assembly 210) which disengages the opposing end 211a of the rod member 214 from the bracket assembly 250 (i.e., the end 211a of the rod member 214 moves outwardly from the aligned apertures 264, 274 in the outer and inner bracket members 260, 270) .
[0071] FIGS. 11A-11B illustrate a detailed view of the disengagement of the rod member 214 from the bracket assembly 250 and disengagement of the roller member 194 from the bracket assembly 250 (i.e., the rear door 170 of the cabinet 100 has been moved to an opened position and the roller member 194 has been disengaged from the bracket assembly 250) . As shown in FIGS. 11A-11B, when the roller member 194 disengages with the bracket assembly 250, the roller member 194 no longer exerts a force on the inner bracket member 270, which allows the inner bracket member 270 to move (slide) relative to the outer bracket member 260 in a second opposing direction (as indicated by arrow F6) . In other words, the biasing member 254 decompresses (i.e., returns to a relaxed state) which forces the inner bracket member 270 to move in the second direction relative to the outer bracket member 260. As shown in FIGS. 11A-11B, when the inner bracket member 270 moves relative to the outer bracket member 260, the respective apertures 264, 274 in the outer and inner bracket members 260, 270 become misaligned. When the apertures 264, 274 in the outer and inner bracket members 260, 270 are no longer aligned, the end 211a of the rod member 214 cannot be received through the apertures 264, 274, and thus, the front door 150 of the telecommunications cabinet 100 is prohibited from being closed when the rear door 170 is in an opened position. In other words, if someone tries to close the front door 150, the end 211a of the rod member 214 will contact the inner bracket member 260, thereby preventing the front door 150 from closing all the way. Instead, before the front door 150 can be completely closed, the rear door 170 must be closed and locked to realign the apertures 264, 274 in the inner and outer bracket members 260, 270.
[0072] As shown in FIG. 11C, as discussed above, when the front door 150 is moved to an opened position, the bracket 155 on an interior surface of the front door 150 no longer contacts the stop member 213 on the rod member 214 which allows the biasing member 216 between the stop member 213 and the end of the channel member 215 to decompress (i.e., the biasing member 216 is moved into a relaxed state) and push the rod member 214 relative to the channel member 214 (as indicated by arrow F2) .
[0073] As described herein, according to embodiments of the present invention, the interlock mechanism 200 is configured to prohibit the rear door 170 of the telecommunications cabinet 100 from being opened unless the front door 150 of the cabinet 100 is opened first. According to embodiments of the present invention, the interlock mechanism 200 is also configured to prevent the front door 170 of the telecommunications cabinet 100 from being closed unless the rear door 150 of the cabinet 100 is both closed and locked. Thus, the interlock mechanism 200 of the present invention helps to ensure that the rear door 170 of the telecommunications cabinet 100 is closed and locked before a person who has accessed the cabinet 100 leaves the telecommunications site.
[0074] It is noted that one or more of the components of the interlock mechanism 200 described herein may be slightly modified and / or moved and the interlock mechanism 200 function in the same or similar manner as described. For example, in some embodiments, the respective biasing members 216, 254 of the rod assembly 210 and / or bracket assembly 250 may reside in a different location than as illustrated in the figures, e.g., the biasing member 216 may reside within the channel member 212 and / or the biasing member 254 may reside between the biasing section 276 and the lock section 278 of the inner bracket member 270. In addition, different types of compression springs may be used for the biasing members 216, 254.
[0075] Referring now to FIGS. 12-15C, an alternative interlock mechanism 300 according to embodiments of the present invention is illustrated. Properties and / or features of the interlock mechanism 300 may be as described herein in reference to the interlock mechanism 200 and duplicate discussion thereof may be omitted herein for the purposes of discussing FIGS. 12-15C. According to embodiments of the present invention, the interlock mechanism 300 may be incorporated into the same or a similar telecommunications cabinet 100 described herein and shown in FIGS. 1A-1B, FIGS. 2A-2B, and FIGS. 3A-3B.
[0076] As shown in FIG. 12, the interlock mechanism 300 includes a rod assembly 310 and a locking assembly 350. The interlock mechanism 300 is configured to be secured within the internal cavity 180 of the cabinet 100. For example, in some embodiments, the rod assembly 310 may be secured to an interior surface of the side wall 130 of the cabinet 100 and the locking assembly 350 may be secured to an interior surface of the rear wall 140 and / or side wall 130 of the cabinet 100 (see also FIG. 13A and FIGS. 15A-15C) . As described in further detail below, the interaction between the rod assembly 310 with the locking assembly 350 (i.e., engagement and disengagement) will prohibit the opening and / or closing of the front and rear doors 150, 170 of the cabinet 100.
[0077] As shown in FIG. 12, in some embodiments, the rod assembly 310 includes an elongate rod member 314. In some embodiments, the rod member 314 may have a square cross-sectional shape (see, e.g., FIG. 13B) . In other embodiments, the rod member 314 may have a circular cross-sectional shape. The rod assembly 310 is mounted to the side wall 130 of the cabinet 100 via bracket members 312. In addition to the bracket members 312, in some embodiments, the rod assembly 310 includes at least one additional guide member 319 configured to help maintain the travel path of the rod member 314 within the locking assembly 350. The rod member 314 extends through openings 312a in the bracket members 312 and guide member 319 which allows the rod member 314 move along a longitudinal axis (i.e., move in a first direction F1 or an opposing second direction F2) relative to the side wall 130 of the cabinet 100, as the front and rear doors 150, 170 of the cabinet 100 are moved from a closed position to an opened position and vice versa. This operation will be described in further detail below (see FIGS. 15A-15C) .
[0078] As shown in FIG. 12, FIG. 13A, and FIGS. 15A-15C, in some embodiments, the rod assembly 310 may further include a pair of stop members 3181, 3182. Each stop member 3181, 3182 resides on the rod member 314 and is configured to prevent the rod member 314 from moving too far in the first or second direction F1, F2. In some embodiments, each stop member 3181, 3182 may include a set screw 318a that is configured to secure the respective stop member 3181, 3182 at a desired location along the rod member 314.
[0079] An end 311a of the rod member 314 is configured to engage with the locking assembly 350 of the interlock mechanism 300, which will be described in further detail below (see, e.g., FIGS. 14A-14C) . An opposing end 311b of the rod member 314 is configured to engage (make contact) with the front door 150 of the telecommunications cabinet 100. In some embodiments, the rod assembly 310 further includes a biasing member 316 (e.g., a spring or similar device) . As shown in FIG. 12, in some embodiments, the biasing member 316 resides on the rod member 314 between one of the bracket members 312 and the first stop member 3181 (see also FIGS. 15A-15C) . In some embodiments, when the front door 150 is moved into a closed position, an interior surface of the front door 150 (or a bracket secured to the interior surface of the door 150) engages (contacts) the end 311b of the rod member 314 and pushes the rod member 314 (i.e., the rod member 314 slides (moves) relative to the bracket members 312 and side wall 130) , thereby compressing the biasing member 316 between the corresponding bracket member 312 and stop member 3181 (see, e.g., FIG. 15C) .
[0080] In some embodiments, the second stop member 3182 may be positioned adjacent to another bracket member 312. The second stop member 3182 is configured to prohibit the rod member 314 from moving too far in the second direction F2, for example, when the front door 150 of the cabinet 100 is moved to the opened position (see, e.g., FIGS. 15A-15B) . In other words, when the front door 150 is opened, the biasing member 316 decompresses and pushes against the first stop member 3181 which causes the rod member 314 to move in the second direction F2 until the second stop member 3182 contacts the bracket member 312, thereby preventing the rod member 314 from moving further in the second direction F2.
[0081] FIGS. 13A-13B illustrate the locking assembly 350 of the interlock mechanism 300 in greater detail. As shown in FIGS. 13A-13B, in some embodiments, the locking assembly 350 may include an outer housing 352. Openings 352a, 352b may be provided on opposing walls of the outer housing 352 with one of the openings 352a being configured to receive an end 311a of the rod member 314 of the rod assembly 310 and the other opening 352b being configured to receive a locking mechanism (e.g., a rear rod member 175) that is mounted to the rear door 170 of the telecommunications cabinet 100. In some embodiments, a bracket 173 may be used to secure the rear rod member 175 to an interior surface of the rear door 170. As shown in FIG. 13A, in some embodiments, the outer housing 352 of the locking assembly 350 may be secured to the rear and / or side walls 140, 130 of the telecommunications 100 via mounting brackets 353, 355, respectively.
[0082] As further shown in FIGS. 13A-13B, residing within the outer housing 352, in some embodiments, the locking assembly 350 further comprises a biasing member 354 coupled to a wheel member 360. A pivot pin 356 may be mounted to an inner surface of the outer housing 352. In some embodiments, the pivot pin 356 is configured to extend through an aperture 360a in the wheel member 360, thereby allowing the wheel member 360 to rotate about the pivot pin 356. In some embodiments, the wheel member 360 comprises two grooves or recesses 362, 364 (see, e.g., FIG. 14A-14C) . As described in further detail below, one groove / recess 362 is configured to receive an end 175h of the rear rod member 175 and the other groove / recess 364 is configured to receive an end 311a of the rod member 314. The end 175h of the rear rod member 175 is configured to engage with the groove / recess 362 in the wheel member 360. For example, in some embodiments, the end 175h of the rear rod member 175 may comprise a hook or have a similar shape. In some embodiments, the biasing member 354 is positioned between the outer housing 352 and the wheel member 360 and surrounds the pivot pin 356. In some embodiments, the biasing member 354 is a torsion spring. As described in further detail below, the wheel member 360 is configured to rotate relative to pivot pin 356 as the rear rod member 175 engages or disengages with the respective groove / recess 362 in the wheel member 360 (see FIG. 14B and FIG. 15B) .
[0083] In some embodiments, as shown in FIGS. 13A-13B, the locking assembly 350 may further comprise a stop pin 358. In some embodiments, the stop pin 358 is coupled to an inner surface of the outer housing 352 and is configured to prevent the wheel member 360 from rotating too far in either direction around the pivot pin 356 (i.e., provides a maximum rotational threshold that the wheel member 360 may rotate around the pivot pin 356) . In some embodiments, the wheel member 360 may further comprise a stop arm 368 extending outwardly therefrom. The stop arm 368 is configured to engage with the stop pin 358 to further help prevent the wheel member 360 from rotating too far around the pivot pin 356.
[0084] Exemplary operation of the interlock mechanism 300 according to embodiments of the present invention is illustrated in FIGS. 14A-14C and FIGS. 15A-15C. FIG. 14A and FIG. 15A illustrate the interlock mechanism 300 when the front and rear doors 150, 170 are in an opened position (for example, as shown in FIGS. 3A-3B) . In FIGS. 14A-14C, line P1-P1 represents the rear door 170 close plane relative to the locking assembly 350 and line P2-P2 represents the rod member 314 reset plane relative to the locking assembly 350. In general, when the front door 150 is moved into an opened position, the front door 150 (e.g., the bracket 155 mounted to the interior surface of the front door 150) disengages from the end 311b of the rod member 314 of the interlock mechanism 300 which allows the biasing member 316 to decompress (i.e., the biasing member 316 returns to a relaxed state) . As discussed above, as the biasing member 316 decompresses, the biasing member 316 pushes against the first stop member 3181 which moves the rod member 314 in the second direction F2 and disengages the opposing end 311a from the locking assembly 350 (see, e.g., FIG. 15A) . As further shown in FIG. 15A, in some embodiments, the second stop member 3182 contacts the corresponding bracket member 312, to prohibit the rod member 314 from moving too far in the second direction F2.
[0085] As shown in FIG. 14A, when the rear door 170 is in an opened position (i.e., moved in the first direction F1) , the rear rod member 175 is not engaged with the wheel member 360 of the locking assembly 350, and thus, an external force is not being exerted on the wheel member 360 by the rear rod member 175 which allows the biasing member 354 to rotate the wheel member 360 about the pivot pin 356 in a first rotational direction R1 (e.g., a clockwise direction) . As discussed above, the stop pin 358 and stop arm 368 of the locking assembly 350 are configured to prevent the wheel member 360 from being rotated too far (maximum rotational threshold) in the first rotational direction R1 by the biasing member 354. In some embodiments, the stop pin 358 is further configured to help align the groove / recess 362 of the wheel member 360 with the end 175h of the rear rod member 175, thereby allowing for engagement therewith, for example, when the rear door 170 is moved into a closed position (see, e.g., FIGS. 14B-14C) .
[0086] As further shown in FIG. 14A, rotation of the wheel member 260 in the first rotational direction R1 (i.e., by the biasing member 354) moves the other groove / recess 364 out of alignment with the end 311a of the rod member 314. Thus, the rod member 314 is prevented (blocked) from being received by the groove / recess 364 by an outer surface 361 of the wheel member 360. As a result, the rod member 314 prevents the front door 150 from being moved into a closed position. In other words, the interlock mechanism 300 of the present invention is configured to prevent the front door 150 of the telecommunications cabinet 100 from being moved to the closed position when the rear door 170 of the cabinet 100 is in the opened position.
[0087] FIG. 14B and FIG. 15B illustrate the interlock mechanism 300 when the rear door 170 is moved into a closed position and the front door 150 remains in the opened position (for example, as shown in FIGS. 2A-2B) according to embodiments of the present invention. As shown in FIG. 14B, when the rear door 170 is in a closed position (i.e., moved in the second direction F2) , the end 175h of the rear rod member 175 is configured to be received by the groove / recess 362 of the wheel member 360. As the rear door 170 is closed and the rear rod member 175 is received by the groove / recess 362, the rear rod member 175 exerts an external force on the wheel member 360 which causes rotation of the wheel member 360 about the pivot pin 356 in a second opposing rotational direction R2 (e.g., a counterclockwise direction) .
[0088] As further shown in FIG. 14B, rotation of the wheel member 360 in the second rotational direction R2 moves the other groove / recess 364 in the wheel member 360 into alignment with the end 311a of the rod member 314 of the rod assembly 310. Thus, when the rear rod member 175 is engaged with the wheel member 360, the rod member 314 is no longer prevented (blocked) by an outer surface 361 of the wheel member 360 and may be received by the groove / recess 364 (see FIG. 14C) . As a result, the front door 150 is no longer prevented from being moved into a closed position by the rod member 314. In other words, the interlock mechanism 300 of the present invention is configured to permit the front door 150 of the telecommunications cabinet 100 from being moved to the closed position when the rear door 170 of the cabinet 100 is in the closed position.
[0089] In addition, in some embodiments, the stop pin 358 and stop arm 368 of the locking assembly 350 may be configured to help prevent the wheel member 360 from being rotated too far in the second rotational direction R2. In some embodiments, the stop pin 358 is further configured to help align the groove / recess 364 of the wheel member 360 with the end 311a of the rod member 314, thereby allowing for engagement therewith, for example, when the front door 150 is moved into a closed position (see FIG. 14C and FIG. 15C) .
[0090] FIG. 14C and FIG. 15C illustrate the interlock mechanism 300 when the rear door 170 and front door 150 have both been moved into a closed position according to embodiments of the present invention (for example, as shown in FIGS. 1A-1B) . As shown in FIG. 14C, and described above, when the rear door 170 is in the closed position (i.e., moved in the second direction F2) , the end 175h of the rear rod member 175 is received by the groove / recess 362 of the wheel member 360 which causes rotation of the wheel member 360 about the pivot pin 356 in a second opposing rotational direction R2 (e.g., a counterclockwise direction) . Rotation of the wheel member 360 in the second rotational direction R2 positions the other groove / recess 364 in the wheel member 360 into alignment with the end 311a of the rod member 314 of the rod assembly 310. When the front door 150 is moved into the closed position, the front door 150 (e.g., the bracket 155 mounted to the interior surface of the front door 150) engages (contacts) the opposing end 311b of the rod member 314 and pushes (moves) the rod member 314 in the first direction F1 (relative to the side wall 130 of the cabinet 100) until the end 311a of the rod member 314 is received within the groove / recess 364 of the wheel member 360 of the locking assembly 350. At the same time, the biasing member 316 is compressed between the first stop member 3181 and the corresponding bracket member 312 (see FIG. 15C) .
[0091] The foregoing is illustrative of the present invention and is not to be construed as limiting thereof. Although a few exemplary embodiments of this invention have been described, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the claims. The invention is defined by the following claims, with equivalents of the claims to be included therein.
Claims
1.A telecommunications cabinet, the telecommunications cabinet comprising:a rear wall, opposing side walls, a floor, a ceiling, wherein a front door is hinged to one of the side walls and a rear door comprising a locking mechanism is hinged to the rear wall or one of the side walls and together the walls, doors, floor and ceiling define an internal cavity configured to have electronics equipment mounted therein; andan interlock mechanism mounted within the internal cavity,wherein the interlock mechanism is configured to prohibit the rear door from being moved into an opened position when the front door is in a closed position and configured to prohibit the front door from being moved to the closed position unless the rear door is in a closed position.2.The telecommunications cabinet according to Claim 1, wherein the interlock mechanism is configured to prohibit the front door from being moved to the closed position unless the rear door is also in a locked position.3.The telecommunications cabinet according to any one of Claim 1 or Claim 2, wherein the interlock mechanism comprises a rod assembly secured within the internal cavity of the cabinet and a bracket assembly secured to an interior surface of the rear wall of the cabinet, the rod assembly is configured to engage with the bracket assembly and the bracket assembly is configured to engage with the locking mechanism.4.The telecommunications cabinet according to Claim 3, wherein the rod assembly comprises a channel member and a rod member, the rod member is configured to move longitudinally relative to the channel member in a first direction when the front door of the cabinet is moved from the closed position to the opened position and in a second opposing direction when the front door is moved from the opened position to the closed position.5.The telecommunications cabinet according to Claim 4, wherein opposing ends of the channel member comprise an aperture through which the rod member is configured to extend.6.The telecommunications cabinet according to any one of Claims 3-5, wherein the rod assembly further comprises a stop member at an end of the rod member and a biasing member residing between the stop member and an end of the channel member, and wherein, when the front door is moved into the closed position, the front door is configured to contact the stop member and push the rod member until an opposing end of the rod member engages with the bracket assembly of the interlock mechanism.7.The telecommunications cabinet according to any one of Claims 3-6, wherein the bracket assembly comprises a first bracket member and a second bracket member, the second bracket member is affixed to an interior surface of the rear wall of the cabinet and the first bracket member is movably coupled to the second bracket member.8.The telecommunications cabinet according to Claim 7, wherein the first bracket member comprises a slot and the second bracket member comprises a first aperture, and wherein a fastener is received through the first aperture and the slot and configured to traverse within the slot, thereby allowing the first bracket member to move relative to the second bracket member.9.The telecommunications cabinet according to any one of Claim 7 or Claim 8, wherein the second bracket member further comprises a second aperture and the first bracket member further comprises an aperture, and wherein, when the first bracket member moves relative to the second bracket member, the aperture in the first bracket is configured to align with the second aperture in the second bracket member such that the end of the rod member may be received through the aligned apertures.10.The telecommunications cabinet according to any one of Claims 7-9, wherein the first bracket member of the bracket assembly further comprises a biasing section and a lock section, and a biasing member resides between the first and second bracket members, and wherein, when the rear door is moved into the closed position and the locking mechanism is moved to a locked position, the lock section of the first bracket member is configured to engage with the locking mechanism and move the first bracket member relative to the second bracket member which compresses the biasing member between the biasing section of the first bracket member and the interior surface of the second bracket member.11.The telecommunications cabinet according to Claim 10, wherein the bracket assembly further comprises at least one pin coupled to an interior surface of the second bracket member and received through a corresponding aperture in the biasing section of the first bracket member, and the biasing member extends circumferentially around the at least one pin and extends through the corresponding aperture in the biasing section of the inner bracket member.12.An interlock mechanism for a telecommunications cabinet, the interlock mechanism comprising:a bracket assembly comprising a first bracket member and a second bracket member, the second bracket member is configured to be affixed to an interior surface of a rear wall of the telecommunications cabinet and the first bracket member is movably coupled to the second bracket member; anda rod assembly configured to be secured within an internal cavity of the telecommunications cabinet, the rod assembly comprises a channel member and a rod member configured to engage with the bracket assembly,wherein the rod member is configured to move longitudinally relative to the channel member in a first direction when a front door of the telecommunications cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position.13.The interlock mechanism according to Claim 12, wherein opposing ends of the channel member comprise an aperture through which the rod member is configured to extend.14.The interlock mechanism according to any one of Claim 12 or Claim 13, wherein the rod assembly further comprises a stop member at an end of the rod member and a biasing member residing between the stop member and an end of the channel member, and wherein, when the front door is moved into the closed position, the front door is configured to contact the stop member and push the rod member until an opposing end of the rod member engages with the bracket assembly.15.The interlock mechanism according to any one of Claims 12-14, wherein the first bracket member of the bracket assembly comprises a slot and the second bracket member of the bracket assembly comprises a first aperture, and wherein a fastener is received through the first aperture and the slot and configured to traverse within the slot, thereby allowing the first bracket member to move relative to the second bracket member.16.The interlock mechanism according to any one of Claim 15, wherein the second bracket member of the bracket assembly further comprises a second aperture and the first bracket member of the bracket assembly further comprises an aperture, and wherein, when the first bracket member moves relative to the second bracket member, the aperture in the first bracket is configured to align with the second aperture in the second bracket member such that the end of the rod member may be received through the aligned apertures.17.The interlock mechanism according to any one of Claims 12-16, wherein the first bracket member of the bracket assembly further comprises a biasing section and a lock section, and a biasing member resides between the first and second bracket members, and wherein, when a rear door of the telecommunications cabinet is moved into a closed position and a corresponding locking mechanism is moved into a locked position, the lock section of the first bracket member is configured to engage with the locking mechanism and move the first bracket member relative to the second bracket member, thereby compressing the biasing member between the biasing section of the first bracket member and the interior surface of the second bracket member.18.The interlock mechanism according to Claim 17, wherein the bracket assembly further comprises at least one pin coupled to an interior surface of the second bracket member and received through a corresponding aperture in the biasing section of the first bracket member, and the biasing member extends circumferentially around the at least one pin and extends through the corresponding aperture in the biasing section of the inner bracket member.19.A telecommunications cabinet, the telecommunications cabinet comprising:a rear wall, opposing side walls, a floor, a ceiling, wherein a front door is hinged to one of the side walls and a rear door comprising a locking mechanism is hinged to the rear wall or one of the side walls and together the walls, doors, floor and ceiling define an internal cavity configured to have electronics equipment mounted therein; andan interlock mechanism mounted within the internal cavity, the interlock mechanism comprising:a bracket assembly comprising a first bracket member and a second bracket member, the second bracket member is affixed to an interior surface of the rear wall of the telecommunications cabinet and the first bracket member is movably coupled to the second bracket member; anda rod assembly secured within the internal cavity of the telecommunications cabinet, the rod assembly comprises a channel member and a rod member configured to engage with the bracket assembly,wherein the rod member is configured to move longitudinally relative to the channel member in a first direction when the front door of the cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position,wherein the interlock mechanism is configured to prohibit the rear door from being moved into an opened position when the front door is in the closed position and configured to prohibit the front door from being moved to the closed position unless the rear door is in a closed position.20.The telecommunications cabinet according to Claim 19, wherein the interlock mechanism is configured to prohibit the front door from being moved to the closed position unless the rear door is also in a locked position.21.The telecommunications cabinet according to any one of Claim 19 or Claim 20, wherein opposing ends of the channel member comprise an aperture through which the rod member is configured to extend.22.The telecommunications cabinet according to any one of Claims 19-21, wherein the rod assembly further comprises a stop member at an end of the rod member and a biasing member residing between the stop member and an end of the channel member, and wherein, when the front door is moved into the closed position, the front door is configured to contact the stop member and push the rod member until an opposing end of the rod member engages with the bracket assembly of the interlock mechanism.23.The telecommunications cabinet according to any one of Claims 19-22, wherein the first bracket member comprises a slot and the second bracket member comprises a first aperture, and wherein a fastener is received through the first aperture and the slot and configured to traverse within the slot, thereby allowing the first bracket member to move relative to the second bracket member.24.The telecommunications cabinet according to Claim 23, wherein the second bracket member further comprises a second aperture and the first bracket member further comprises an aperture, and wherein, when the first bracket member moves relative to the second bracket member, the aperture in the first bracket is configured to align with the second aperture in the second bracket member such that the end of the rod member may be received through the aligned apertures.25.The telecommunications cabinet according to any one of Claims 19-24, wherein the first bracket member of the bracket assembly further comprises a biasing section and a lock section, and a biasing member resides between the first and second bracket members, and wherein, when the rear door is moved into the closed position and the locking mechanism is moved to a locked position, the lock section of the first bracket member is configured to engage with the locking mechanism and move the first bracket member relative to the second bracket member which compresses the biasing member between the biasing section of the first bracket member and the interior surface of the second bracket member.26.The telecommunications cabinet according to Claim 25, wherein the bracket assembly further comprises at least one pin coupled to an interior surface of the second bracket member and received through a corresponding aperture in the biasing section of the first bracket member, and the biasing member extends circumferentially around the at least one pin and extends through the corresponding aperture in the biasing section of the inner bracket member.27.The telecommunications cabinet according to any one of Claims 1-3, wherein the bracket assembly comprises a biasing member coupled to a wheel member, the wheel member having two recesses, one recess configured to receive a rod member of the rod assembly and the other recess configured to receive the locking mechanism of the rear door, wherein the wheel member is configured to rotate around a pivot pin when engaged or disengaged by the locking mechanism of the rear door.28.The telecommunications cabinet according to Claim 27, wherein the bracket assembly further comprises an outer housing surrounding the biasing member and the wheel member, the pivot pin is mounted to an inner surface of the outer housing and extends through an aperture in the wheel member, the outer housing comprising openings configured to receive the rod member and the locking mechanism.29.The telecommunications cabinet according to any one of Claim 27 or Claim 28, wherein the biasing member of the bracket assembly is a torsion spring.30.The telecommunications cabinet according to any one of Claims 27-29, wherein the rod assembly is mounted to the side wall of the cabinet via bracket members, the rod member extending through openings in the bracket members and being configured to move along a longitudinal axis relative to the side wall of the cabinet as the front and rear doors of the cabinet are moved from the closed position to the opened position and vice versa.31.The telecommunications cabinet according to Claim 30, wherein the rod assembly further comprises a pair of stop members, each stop member configured to prevent the rod member from moving too far in a first direction and an opposing second direction along the longitudinal axis.32.The telecommunications cabinet according to Claim 31, wherein the rod assembly further comprises a biasing member residing between one of the stop members and a corresponding bracket member, the biasing member configured to move the rod member in the second direction when the front door of the cabinet is moved to the opened position.33.The telecommunications cabinet according to any one of Claims 27-32, wherein the bracket assembly further comprises a stop pin configured to provide a maximum rotational threshold of the wheel member around the pivot pin.34.The telecommunications cabinet according to Claim 33, wherein the wheel member comprises a stop arm extending outwardly therefrom, the stop arm configured to engage the stop pin to enforce the maximum rotational threshold of the wheel member.35.An interlock mechanism for a telecommunications cabinet, the interlock mechanism comprising:a rod assembly configured to be mounted to a side wall of the telecommunications cabinet, the rod assembly comprising a rod member;a locking assembly comprising a biasing member coupled to a wheel member, the wheel member having two recesses, one recess configured to receive the rod member of the rod assembly and the other recess configured to receive a locking mechanism of a rear door of the telecommunications cabinet,wherein the rod member is configured to move along a longitudinal axis relative to the side wall in a first direction when a front door of the telecommunications cabinet is moved from a closed position to an opened position and move in a second opposing direction when the front door is moved from the opened position to the closed position, andwherein the wheel member is configured to rotate when engaged or disengaged by the locking mechanism of the rear door.36.The telecommunications cabinet according to Claim 35, wherein the locking assembly further comprises an outer housing surrounding the biasing member and the wheel member, a pivot pin is mounted to an inner surface of the outer housing and extends through an aperture in the wheel member, the outer housing comprising openings configured to receive the rod member and the locking mechanism.37.The telecommunications cabinet according to any one of Claim 35 or Claim 36, wherein the biasing member of the locking assembly is a torsion spring.38.The telecommunications cabinet according to any one of Claims 35-37, wherein the rod assembly further comprises a pair of stop members, each stop member configured to prevent the rod member from moving too far in a first direction and an opposing second direction along the longitudinal axis.39.The telecommunications cabinet according to Claim 38, wherein the rod assembly further comprises a biasing member residing between one of the stop members and a corresponding bracket member, the biasing member configured to move the rod member in the second direction when the front door of the cabinet is moved to the opened position.40.The telecommunications cabinet according to any one of Claims 35-39, wherein the bracket assembly further comprises a stop pin configured to provide a maximum rotational threshold of the wheel member.41.The telecommunications cabinet according to Claim 40, wherein the wheel member comprises a stop arm extending outwardly therefrom, the stop arm configured to engage the stop pin to enforce the maximum rotational threshold of the wheel member.
Citation Information
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