The field of the invention generally relates to mailboxes, and more specifically to a mailbox kit having a compact size in its unassembled state compared to its assembled state.
The onset and profound growth of online shopping and associated parcel shipping has driven notable changes in mailbox (also referred to herein as a “mail receptacle”) design. There is growing demand for larger mailboxes that can accommodate larger mail volume and parcel delivery. Concurrently, freight charges incurred throughout the supply chain for bringing products to market have also increased dramatically, with demand often outpacing supply in ocean shipping and with upwardly trending fuel costs. In addition, larger mailboxes require more space during warehouse storage and retail display. As mail and parcel receptacles become larger and freight costs become a larger constituent of overall product cost, methods to reduce the physical volume of a mailbox during shipping, storage and retail display is beneficial.
In response to this growing demand for larger mailboxes, the United States Postal Service (“USPS”) has issued a revision to their USPS Standard 7, from version B to version C. In USPS Standard 7C (Final Rule published in the Federal Register, Volume 80, Number 157), a new size of mailbox is presented, which is much larger than the previous standard and intended to receive most of the common USPS Flat Rate cartons.
There are some unique constraints that must be considered when designing a mailbox to be sold as an unassembled kit for assembly by the consumer (i.e., a breakdown mailbox). All curbside mailboxes used in the U.S. today must undergo and pass testing against USPS Standard 7, and then be approved by the USPS Engineering Team. Several parts of Standard 7 aim to ensure the final product is large enough for typical deliveries, has the structural rigidity and strength to withstand abusive conditions sometimes experienced during use in the field, and is rainwater tight.
Section 4 of USPS Standard 7 (currently revision C) includes two requirements of particular interest, namely Section 4.8 (Structural Rigidity) and Section 4.9 (Impact Test). USPS Standard 7 identifies the static load and impact locations for these tests, describing how to perform them, and how to evaluate compliance. A paraphrased excerpt from USPS Standard 7 is provided below, with reference to
1. Strength Test:
2. Impact Test:
a. Drop 10 lb weight onto position #3 from a height of 3 feet using a 2″ x 2″ bolster plate.
b. Observe closely inside and outside for any perforation (hole), crack, sharp edges, and door operation. There must not be any such perforations, cracks, or sharp edges, and the door must still operate normally.
c. Repeat for position #4.
Another section of USPS Standard 7 requires that no water intrude into the mail storage compartment during a specific water tightness test.
Accordingly, there is a need for a compact, mailbox kit which is easy to assemble, has a small unassembled size relative to the size of the assembled mail storage compartment, and meets the USPS standards.
The present invention is directed to a compact mailbox kit for an unassembled mailbox which can preferably be easily assembled by the consumer, and has an assembled volumetric capacity for mail objects much greater than existing standard mailboxes (as shown in
Accordingly, in one embodiment of the present invention, a mailbox kit includes an innovative configuration and arrangement of components which can be assembled into an assembled mailbox having a shipping volume (as used herein, the term “shipping volume” means the volume within the extremities of the relevant object) which is substantially smaller than the shipping volume of the same mailbox in an assembled state. The mailbox kit includes a roof configured to form the cover of the assembled mailbox. The roof has an arched shape and opposing elongated roof bottom edges forming the bottom of the arched shape. The mailbox kit has a floor configured to form a bottom of the assembled mailbox onto which mail inserted into the assemble mailbox is placed. The floor comprises a panel having opposing elongated floor sides extending along the length of the floor. In the mailbox kit, the floor is positioned under the roof such that the opposing elongated floor sides are adjacent and substantially parallel to respective roof bottom edges. In this arrangement, the floor and the roof form a compartment which is open at the front and rear sides.
The mailbox kit also includes a front door configured to form a front door of the assembled mailbox which can be pivoted between an open position and a closed position. The front door is also positioned within the compartment formed by the roof and the floor. The kit also has a left sidewall configured to form a left sidewall of the assembled mailbox, and a right sidewall configured to form a right sidewall of the assembled mailbox (opposing the left sidewall) positioned within the compartment formed by the roof and the floor. Each of the floor, roof, front door, left sidewall, and right sidewall are configured to be assembled to each other to form the assembled mailbox. For instance, these components may have joints, fastener holes, tabs, slots, and/or other assembly elements for connecting the components together to from the assembled mailbox.
In another aspect of the present invention, the front door, left sidewall and right sidewall are stacked on each other within the compartment. For instance, the front door may be stacked directly on the floor, then one of the left sidewall or right sidewall may be stacked directly on the front door, then the other of the left sidewall or right sidewall is stacked directly on the left sidewall or right sidewall which was stacked directly on the front door.
In still another aspect, the mailbox kit further includes a rear panel configured to form the rear panel of the assembled mailbox. The rear panel is positioned beneath the floor such that the floor is stacked directly on the rear panel.
In another aspect, the floor may include corresponding opposing floor flanges extending downward from each of the floor sides. The rear panel may then be nested within the floor side flanges.
In yet another aspect, the mailbox kit may also include an outgoing mail indicator flag configured to be rotatably attached to one of the left sidewall or right sidewall. The flag is also positioned within the compartment formed by the roof and the floor. For instance, the flag may be stacked directly on the topmost one of the left sidewall or the right sidewall. The mailbox kit may further include a handle configured to be attached to the front door for opening and closing the front door. The handle may be positioned within the compartment formed by the roof and the floor, such as adjacent to the flag.
In another aspect of the mailbox kit, the left sidewall and right sidewall may have lap joints in which one part has a lap joint groove into which an edge (i.e., a lap tongue) of the mating part slides into in order to attach the two parts together. This may be particularly useful in joining the sidewalls to the floor in order to prevent water from entering the mail compartment through the joint between the sidewalls and the floor. For example, the opposing floor flanges may have a lap joint groove with the groove opening facing upward. The bottom edge of the each of the left sidewall and right sidewall are configured to slide into the lap joint groove to form a lap joint between the floor and each of the right sidewall and left sidewall. The rear panel may also have a lap joint groove into which a rear edge of each of the sidewalls inserts to form a lap joint between the sidewalls and the rear panel. The lap joints may also be configured as double lap joints in which the insertion edge of the double lap joint is folded over to provide two layers of thickness. The lap joints create a tortuous path for water intrusion which helps prevent water from entering the mail compartment. The lap joints may also include weep holes spaced apart along the bottom of the joints to allow water to flow out of the joints, thereby preventing water from building up in the joints and leaking into the mail compartment.
In another aspect of the mailbox kit, one or more of the components can be injection-molded plastic parts. The components can be molded to produce tight lap joints between the components, and to provide contours, ridges and ribs to provide a path of least resistance for water to flow away from the mail storage compartment, and/or to increase the strength and/or rigidity of the assembled mailbox.
In another aspect of the mailbox kit, the roof is configured to overhang the sidewalls, the rear panel and the front door in the assembled mailbox. This helps prevent water from entering the mail compartment.
In an additional aspect, the joints between the floor, sidewalls, and roof may be reinforced using a rod or strap attached to the assembled mailbox that bridges the joints. Also, the components may include one-way assembly devices to prevent the components from being disconnected from each other. For example, the mating components may have mating tab and slot devices or one-way notches and tabs which engage to prevent assembled components from being disconnected. The devices engage easily when assembling the components, but are difficult to disengage once mated. This increases the structural integrity and rigidness of the assembled mailbox.
The components of the mailbox kit, such as the floor, sidewalls, rear panel, front door and roof may have ribbing to increase the strength and rigidity of the assembled mailbox. The components of the mailbox kit may also be “keyed” to guide the assembly of the components and to prevent mis-assembly. The components may also include “funneling” features to guide and align the components as they are being assembled into the finished mailbox. The various joint parts of the components may have audible or tactile feedback devices to indicate to the consumer when the respective components are fully assembled. For instance, the barbed tabs can be configured to make a snapping noise when the barbed tabs engage their respective mating engagement holes.
Another embodiment of the present invention is directed to a method of assembling the mailbox kit, as described herein. The left sidewall is attached to the left floor side edge, such that the left sidewall extends upward from the floor. The right sidewall is attached to the right floor side edge such that the right sidewall extends upward from the floor facing the left sidewall. The rear panel is attached to the left sidewall, the right sidewall and the floor. The roof is attached to the left sidewall, the right sidewall and the rear panel. The front door is hingedly attached to opposite sides of the floor, or to the right sidewall and left sidewall such that the front door is rotatable from a closed position to an open position. Thus, the method forms a fully assembled mailbox.
In another aspect of the method of assembling the mailbox kit, the mailbox kit also includes the flag, as described above. The flag is attached to one of the left sidewall or right sidewall such that the flag is rotatable between an up position and a down position.
In another aspect of the method of assembling the mailbox kit, the mailbox kit also includes the handle, as described above. The handle is attached to an outside of the front door.
The method of assembling the mailbox kit may also include any of the additional aspects and features described above for the mailbox kit. Moreover, the above-identified aspects and embodiments may be combined in various combinations as desired.
The foregoing and other aspects of embodiments are described in further detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements and the description for like elements shall be applicable for all described embodiments wherever relevant.
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The mailbox kit 10 has a front door 20 which forms the front door 20 of the assembled mailbox 11. The front door 20 is stacked directly on the floor 14 such that the front door 20 is positioned within the compartment 15. The mailbox kit 10 also has a left sidewall 22 and a right sidewall 24 which form the left sidewall 22 and right sidewall 24 of the assembled mailbox 11. The left sidewall 22 and right sidewall 24 are stacked on each other and on the front door 20 such that the left sidewall 22 and right sidewall 24 are also positioned within the compartment 15. The front door 20, left sidewall 22 and right sidewall 24 may also be stacked on the floor 14 in any suitable order and arrangement, such as one of the left sidewall 22 or right sidewall 24 stacked directly on the floor 14 and the other of the left sidewall 22 or right sidewall 24 stacked thereon, and then the front door 20 stacked on the topmost sidewall 22 or 24, or the door 20 may be stacked between the sidewalls 22, 24.
The mailbox kit 10 also includes a rear panel 26 which forms the rear panel 26 of the assembled mailbox 11. The rear panel 26 is positioned beneath the floor 14 in the mailbox kit 10 such that the floor 14 is stacked directly on the rear panel 26. The floor sides 18 of the floor 14 may have floor flanges 28 (see
The mailbox kit 10 has a handle 30 which is attachable to the front door 20 on the outside surface of the front door 20. The handle 30 is positioned within the compartment 15, such as being stacked on the topmost component of the stack which includes the front door 20, the left sidewall 22 and the right sidewall 24.
The mailbox kit 10 also has an outgoing mail indicator flag 32 which is rotatably attached to the left sidewall 22 or right sidewall 24 of the assembled mailbox 11. In the mailbox kit 10, the flag 32 is stacked on one of the components making up the stack which includes the front door 20, the left sidewall 22 and the right sidewall 24, and the handle 30.
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The roof 12 may also have a plurality of rib supports 19, some of which are transverse to the length of the roof and shaped to follow the contour of the arched portion 36 of the roof 12, and one or more extending lengthwise along the middle of the arched portion 36. As best shown in
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The joints between the floor 14, sidewalls 22 and 24, and roof 12 may be reinforced using one or more rods and/or straps which bridge the joints between mating components of the assembled mailbox 11. For example,
The components of the mailbox kit 10, including the roof 12, floor 14, sidewalls 22 and 24, rear panel 26, and front door 20 may also include ribbing (e.g., see ribs 19 of the roof 12) to increase the strength and rigidity of the assembled mailbox 11. These components or their subcomponents may also be “keyed” and/or provided with lead-ins to guide the assembly of the components and to prevent mis-assembly. The components may also include “funneling” features, such as tapered features, guides, etc., to guide and align the components as they are being assembled into the assembled mailbox 11. The lap joints may also have audible or tactile feedback devices to indicate to the user when the respective components are fully assembled. For instance, the tabs 94 of the locking device 90 can be configured to make a snapping noise when the tabs 94 engage the respective slots 92.
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Although particular embodiments have been shown and described, it is to be understood that the above description is not intended to limit the scope of these embodiments. While embodiments and variations of the many aspects of the invention have been disclosed and described herein, such disclosure is provided for purposes of explanation and illustration only. Thus, various changes and modifications may be made without departing from the scope of the claims. For example, not all of the components described in the embodiments are necessary, and the invention may include any suitable combinations of the described components, and the general shapes and relative sizes of the components of the invention may be modified. Accordingly, embodiments are intended to exemplify alternatives, modifications, and equivalents that may fall within the scope of the claims. The invention, therefore, should not be limited, except to the following claims, and their equivalents.
This Application claims the benefit of U.S. provisional Application No. 62/190,557, filed on Jul. 9, 2015, in accordance with 35 U.S.C. Section 119(e), and any other applicable laws. The contents of the aforementioned application(s) are hereby incorporated herein by reference in their entirety as if set forth fully herein.
Number | Date | Country | |
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62190557 | Jul 2015 | US |