The invention relates in general to mailbox mounting brackets and, in particular, to a theft-resistant mailbox with secure mounting bracket and method of construction thereof.
Recently, an increase in theft and overall concerns of personal security have drawn into question the wisdom of relying on non-locking mailboxes for curbside mail delivery. Mail delivered by a postal carrier is often left unguarded for hours or even days at a time. Valuable correspondence, such as bank statements, negotiable instruments, and credit cards, are placed at risk of being stolen, particularly in light of a rising trend in identity theft.
Providing a locking mechanism on mailboxes provides a partial solution. A lock ensures mail is securely stored and access is limited. However, a locking mechanism is only effective provided that the entire mailbox is not stolen, such as where a thief, out of desperation or expediency, removes the entire mailbox assembly by jimmying or breaking the mailbox from the mounting. Moreover, the awkward shape and limited space afforded by the interior of a mailbox makes the use of robust concealed fasteners difficult. Similarly, one-way screws can make removal difficult, should servicing be later required.
For example, U.S. Pat. No. 6,722,561, issued Apr. 20, 2004 to Tomas et al., discloses a locking mailbox with a vertically-oriented housing. The mailbox is preferably constructed from durable plastic and can be directly mounted onto a mounting post. Post fasteners accessible through the interior vertically attach the mailbox to a post, but the mailbox is oddly shaped and incompatible with widely used horizontal mounting surfaces.
U.S. Pat. No. 6,474,543, issued Nov. 5, 2002 to Grell, discloses a mailbox that defines an arcuate chamber. Decorative articles or liquids can be placed within the chamber. The mailbox is removably attached to a support post using a rectangular base plate that is slidably couples to a horizontal mounting bracket. A tab snappably engages the bracket when the mailbox is properly seated and can be further secured with a padlock. However, the base plate is a structure separate from the mailbox and exposes the bracket to compromise and breakage.
U.S. Pat. No. 5,664,748, issued Sep. 9, 1997 to Speece et al., discloses a universal mounting base for securing multiple sizes of mailboxes to a variety of post mounting configurations. Oppositely disposed sidewalls define extended mounting flanges with a recessed bottom facing inwardly. A molded mounting bracket provides multiple support parts and arm engagement areas. In addition, the mounting flanges have apertures to facilitate mounting using exposed fasteners, which are susceptible to breakage and compromise.
U.S. Pat. No. 5,386,938, issued Feb. 7, 1995 to West, discloses a mailbox post mounting with a frame for securing a mailbox on an upright square or rectangular post. A pair of parallel brackets receives the ends of a pair of bars that are mounted at right angles to form a rectangular frame. Each bar includes holes for fastening the mount to a post. The brackets include apertures for mounting the mailbox. The complete mounting is formed of four separate non-integral parts susceptible to breakage and exposure.
U.S. Pat. No. 5,337,954, issued Aug. 16, 1994 to Kobilarcik et al., discloses a mailbox mounting bracket. The bracket includes spaced flanges depending from ribbed members formed on the bottom surface of the bracket to permit mounting onto a stanchion. Lugged members provided on the sidewalls of the bracket are received in apertures in the flanges depending from the bottom wall of the mailbox. The mounting bracket is non-integral and leaves fasteners exposed and susceptible to compromise.
U.S. Pat. No. 2,552,915, issued May 15, 1951 to Zachrich, discloses a rural mailbox supporting bracket, which includes a base plate, a pair of bracket members, and two pairs of post clamps. The base plate is substantially oblong with opposite side portions bent downwardly to form lateral flanges disposed to be fit within the post clamps. The mailbox is secured to the supporting bracket by outwardly disposed fasteners that are susceptible to breakage and theft.
Therefore, there is a need for a secure mounting that provides unencumbered access to mounting hardware, yet can become a unitary part of a mailbox without sacrificing ease of removal or maintenance.
A robustly-mountable bracket is provided as an integral yet separable part of a secure mailbox assembly. The bracket is configured with one or more apertures to accommodate post fasteners to robustly attach the bracket to a mounting post or other level surface. During installation, access to the apertures remains unencumbered to facilitate stout fastening to the mounting surface. The mailbox assembly is slidably received onto the bracket once mounting is complete. The mailbox assembly is secured to the bracket through concealable housing fasteners or tabs that provide a bracket lock that can only be accessed through a securable enclosure. The housing fasteners or tabs can be part of either the bracket or mailbox assembly, or can be separate components.
One embodiment provides a theft-resistant mailbox with secure mounting bracket and method of construction thereof. A mounting bracket is formed and includes a substantially flat plate provided with one or more apertures to accommodate at least one post fastener. A housing having an open substantially rectangular bottom is provided. A bottom plate is fixedly attached to the inside walls of the housing above bottom margins of the rectangular bottom. A bracket mount is provided between the bottom margins to be slidably received by the mounting bracket over the post fastener. A lockable door is pivotably attached to a front of the housing. A bracket lock is provided to removably lock the mounting bracket to the housing from at least one fixed point of attachment accessible from within the housing.
A further embodiment provides mounting bracket for a theft-resistant mailbox. A mounting bracket assembly is built and includes a substantially flat plate provided with one or more apertures to accommodate at least one concealable post fastener. A bracket lock is attached. A mailbox housing can be slidably received by the mounting bracket assembly over the post fastener to removably lock the mounting bracket to the housing with the bracket lock from at least one fixed point of attachment accessible from within the housing.
The mounting bracket in combination with the bracket lock provide several benefits. First, prior to slidably receiving a mailbox assembly, the mounting bracket is a separate component, which enables the mailbox to be easily installed without having to operate tools on post fasteners from within the mail storage enclosure. Following receipt of the mailbox assembly, the post fasteners are concealed by the bottom plate of the mailbox. In addition, the bracket lock, which locks the mailbox assembly to the mounting bracket, is only accessible from within the mail storage enclosure and remains secure from compromise or breakage while the mailbox remains locked. The mounting bracket becomes an integral part of the mailbox and no fasteners are exposed on the outside of the mailbox. Finally, a homeowner can easily remove the mailbox from the mounting bracket for maintenance or reinstallation at a new location that uses a compatible mounting bracket.
Still other embodiments of the invention will become readily apparent to those skilled in the art from the following detailed description, wherein are described embodiments of the invention by way of illustrating the best mode contemplated for carrying out the invention. As will be realized, the invention is capable of other and different embodiments and its several details are capable of modifications in various obvious respects, all without departing from the spirit and the scope of the invention. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not as restrictive.
Theft-Resistant Mailbox With Secure Mounting Bracket
Conventionally, mailboxes are frequently installed on a mounting post or other level surface to permit easy curbside access by postal delivery vehicles and mail carriers.
The mailbox 10 includes a housing 11, which forms an enclosure for storing mail and other articles. An ornamental design of a mailbox assembly suitable for use as the mailbox 10 is described in commonly-owned U.S. Design patent application, Ser. No. 29/260,448, filed May 24, 2006, abandoned, and U.S. Design patent application, Ser. No. 29/297,960, filed Nov. 23, 2007, pending, the disclosures of which are incorporated by reference. The housing 11 is formed in an inverted U-shape, to which a rear wall is fixedly attached. A bottom plate is fixedly attached to the interior of the housing 11 during assembly to provide a floor. One or more doors are attached to the front of the housing 11. The front generally means the side of the mailbox 10 by which mail is received through the doors. The mounting bracket 14 slidably fits between the two inside walls of the housing 11 along the bottom edge. The mailbox 10 also includes a lockable mail delivery door 17 and non-lockable mail receipt door 18, which are pivotably mounted on the front. The lockable door 17 prevents access to delivered mail or articles, except by those individuals having a key to operate a locking mechanism 15. A locking mechanism suitable for use with the mailbox 10 is described in commonly-owned U.S. Provisional Patent application, Ser. No. 60/808,469, filed May 24, 2006, converted, and U.S. patent application, Ser. No. 11/805,995, filed May 24, 2007, pending, the disclosures of which are incorporated by reference. The non-lockable door 18 allows mail carriers and other individuals to deliver mail and other articles into the mailbox 10 and to retrieve items left for pickup. Access to mail or articles that have already been delivered is prevented by an internal mail delivery chute, as further described below with reference to
The mailbox 10 provides a theft-resistant enclosure, which can be robustly installed on a mounting post or other level surface without exposing mounting hardware to breakage or compromise.
After the bracket 14 has been affixed to the stationary mounting assembly 20, the housing 11 is slidably positioned over the bracket 14. The bracket 14 is sized to be conformably received between the inside walls of the housing 11. The bottom margin of the bottom edges of the housing 11 is formed into a pair of guides 33 that face inwards and run perpendicular to the bottom edges of the housing 11. When the housing is slid onto the bracket 14, the housing guides 33 wrap around the edges 22 of the bracket 14.
A bottom plate 29 is mounted near the bottom of the housing 11 to form a central enclosure 34 within which contents may be stored. Each edge of the bottom plate 29 defines a lip 31 that is fixedly attached to the inwardly facing walls of the housing 11 through, for example, spot welding, rivets, adhesives, and the like. In addition, the bottom edges of the bottom plate 29 are formed into a further pair of guides 32, which also face inwards and run perpendicular to each lip 31. When the bottom plate 29 is fixedly attached to the housing 11, a gap is provided between the housing guides 33 and the bottom plate guides 32 to form a pair of parallel channels, which serve as a bracket mount by which the edges 22 of the bracket 14 are slidably received. Other types of bracket mounts are possible, such as further described below beginning with reference to
The bracket 14 is formed to define a flat center portion 23 and elevated side portions 24 that run the length of the bracket 14 parallel to the sides 22. The elevation enables a wider range of post fasteners 28 to be used by providing clearance between the bottom plate 29 and center portion 23. As the bottom plate 29 is fixedly attached to the inside walls of the housing 11 prior to the housing 11 being slidably received onto the bracket 14, the bottom plate 29 covers and securely conceals the post fasteners 28.
The mailbox assembly, which includes at least the housing 11 and bottom plate 29, is attached to the bracket 14 through a bracket lock that is only accessible from within the enclosure 34. When the lockable door 17 is closed and locked, the mailbox 10 is secure and the combination of robust mounting hardware and concealed bracket lock provide a superior degree of theft resistance. The bracket lock can be part of either the bracket 14, housing 11, bottom plate 29, or other mailbox component, or can be a separate component. For example, the bracket 14 can include a fastener tab 25 that is formed on a leading edge of the bracket 14. Other types of fastener tabs are possible, such as further described below beginning with reference to
When the housing 11 is slidably fit over the bracket 14, the bracket tab 25 abuts the crosstie 36. The housing fasteners 38 are admitted through the bracket tab apertures 26 and crosstie apertures 37 to secure the housing 11 to the bracket 14. The housing fasteners 38 can include, for example, screws, rivets, bolts, and the like, and can be provided as free components or components fixed or integral to either of the crosstie 36 or tab 25. Other types of fasteners are possible. When the lockable door 17 is closed, the locking mechanism 15 engages a frame 35 fixedly attached to the housing 11. The post fasteners 28 and housing fasteners 38 are thereby concealed and secure from compromise or breakage to lock the housing 11 to the mounting bracket 14.
Mounting Bracket
When slidably secured into the housing 11, the bracket 14 becomes an integral part of the mailbox 10.
The bracket 14 is sized to fit within the footprint of the bottom of the housing 11.
Prior to securing the mailbox 10, the bracket 14 is a separate component that allows unencumbered access to the mounting points of the post fasteners 28 to the stationary mounting assembly 20.
Following mounting, the bracket 14 slidably receives the housing 11.
The mailbox 10 includes two compartments for receiving incoming and outgoing mail and articles.
The housing 11, lockable door 17, non-lockable door 18, bottom plate 22, and bracket 14 can be manufactured from 2.0 mm galvanized steel with a powder coat paint finish. In a further embodiment, 1.5 mm stainless steel can be used in place of galvanized steel. The hinge assembly 39 is preferably stainless steel to prevent corrosion. Other materials, thicknesses, and finishes are possible.
The channels can be provided on the bracket instead of on the housing. The spacing between the housing guides 33 and bottom plate guides 32 form parallel channels by which the edges 22 of the bracket 14 are slidably received.
Relocating the parallel channels from the mailbox to the bracket can simplify the structure of the bottom plate 29.
The bracket also need not be secured to the mailbox exclusively along the inside walls of the housing.
The T-shaped guide 61 can be provided as a substitute for or in addition to the mounting functionality of the channels.
The T-shaped guide 61 permits greater flexibility in the interface between the bracket 60 and the stationary mounting assembly 20.
The bottom plate of the mailbox, rather than the inside walls of the housing, slidably receives the bracket 60.
The bracket tab 25 and associated housing fasteners 38 provide a concealable, yet removable bracket lock that secures the mailbox 10 to the bracket. In further embodiments, the bracket lock can be part of either the bracket 14, housing 11, bottom plate 29, or other mailbox component, or can be a separate component.
The spring loading enables each tab 71 to automatically engage the bottom plate as the bracket 70 is slidably received on the mailbox 10 to concealably lock the mailbox assembly to the bracket 70.
The mailbox can be released from the bracket by pushing down on each nub 72 through the aperture.
The spring-loaded tabs 71 prevent further longitudinal movement by the mailbox 10 as the mailbox 10 is slidably received onto the bracket 70.
While the invention has been particularly shown and described as referenced to the embodiments thereof, those skilled in the art will understand that the foregoing and other changes in form and detail may be made therein without departing from the spirit and scope of the invention.
This non-provisional patent application claims priority under 35 U.S.C. § 119(e) to commonly-owned U.S. provisional patent application Ser. No. 60/684,787, filed May 26, 2005, the disclosure of which is incorporated by reference.
Number | Name | Date | Kind |
---|---|---|---|
2552915 | Zachrich | May 1951 | A |
4893747 | Roth | Jan 1990 | A |
5337954 | Kobilarcik et al. | Aug 1994 | A |
5386938 | West | Feb 1995 | A |
5400958 | Walker | Mar 1995 | A |
5664748 | Speece et al. | Sep 1997 | A |
6474543 | Grell | Nov 2002 | B2 |
6722561 | Tomas et al. | Apr 2004 | B1 |
7163141 | Parker | Jan 2007 | B1 |
7195146 | Dunn et al. | Mar 2007 | B1 |
7249704 | Smith | Jul 2007 | B1 |
20050127259 | Riker | Jun 2005 | A1 |
Number | Date | Country | |
---|---|---|---|
60684787 | May 2005 | US |