Abstract: A support member is arranged for the mounting of a mailbox therealong, wherein the support member includes a cementious anchor having a tubular PVC pipe extending upwardly thereof, with the tube member filled with the cementious material mounting a mailbox housing thereon. A modification of the invention includes an indicator housing mounted to the tubular member, with the indicator housing including opposed pivotally mounted doors having apertures directed therethrough to receive opaque plugs, wherein the doors are of a transparent construction and the opaque plugs effect a message through the door structure.

Abstract: A newspaper delivery tube and mounting bracket for protecting the newspaper from the elements. The newspaper tube has a mounting surface that keys to a mounting bracket without fasteners or tools. The mounting bracket has a vertical leg adapted to be fastened to a post and a horizontal leg that is self-mounted to the delivery tube.

Abstract: A rotatable support assembly which may be easily attached directly to an existing regulation-type mailbox and to an existing ground post for the mailbox. The mailbox is attached to the top surface of an inner sleeve which is telescopically inserted in an outer sleeve. Inwardly projecting from the outer sleeve is a fixed cam follower on which travels an upwardly curved camming slot formed in the wall of the inner sleeve and spanning a horizontal angle of 180.degree.. Thus, the follower and slot are both concealed from view and also are protected from damage by external forces. In the normal mail-receiving position of the mailbox, the upper end of the camming slot rests on the cam follower, and the mailbox points toward the road to facilitate the delivery of mail. A simple spring-loaded lock may be provided to maintain the mailbox in this normal position.

Abstract: A security mailbox including an upper compartment for conventional and a lower compartment for secured deposit of mail. An interior partition includes a rear portion movable about a hinged connection to a fixed, front portion between a horizontal position, wherein the partition substantially entirely separates the upper and lower compartments, and a lowered position, wherein the movable portion extends into the lower compartment and permits mail deposited in conventionl fashion in the upper compartment to fall into the lower compartment from which it may be removed only by authorized persons through a normally locked door. the apparatus is characterized by the absence of any structure inside the housing which could interfere with normal deposit of mail, and by a lockable support permitting movement of the portion of the partition from its lowered to its horizontal position only by authorized persons.

Abstract: A mailbox post is arranged for enhanced illumination visibility, including a central cavity housing an elongate bulb member longitudinally aligned relative to the housing positioned rearwardly of spaced transparent windows configured to direct a message. A photo-cell is mounted exteriorly of the post to effect actuation of the bulb.

Abstract: A signalling device for attachment to a rural type mailbox mounted on the side of a road for alerting the owner of the mailbox that mail has been deposited therein by the mail carrier. The signalling device includes a flag plate pivotally secured to either the mailbox or a support post which is actuated by the opening of the door of the mailbox to cause the flag plate to fall, due to gravity, from a raised, non-signalling, position to a lowered, signalling, position. After the mail is removed from the mailbox, the flag plate is easily raised to reset the signalling device in its raised, non-signalling, position to be reactuated by the mail carrier when he next delivers the mail.

Abstract: A security mail receptacle having a mail-receiving portion 1 mounted on a hollow support pole 1a is provided. The mail-receiving portion 1 contains an opening 11 on the inside bottom thereof through which delivered mail falls into the hollow support pole 1a. A tray 4 inside the mail-receiving portion 1, which is separated by a dividing wall 2 from the opening 11, holds outgoing mail for pickup by a Postal Service worker. The delivered mail is retrieved by the resident merely by unlocking a door 15 on the back side of the hollow support pole 1a. The hollow support pole 1a may be mounted on the ground or on a concrete support base 7. Optional handles, one 19 on the mailbox door 9 and the other 20 on the mailbox 1, are provided to aid in opening and closing the mailbox door 9 and for locking said door with a padlock 21 to prevent delivery when mail has been forwarded.

Abstract: An apparatus providing securement and mounting of a mail box, arranged with a vertical post threadedly mounted to an upper plate, with the upper plate securing a single or a plurality of mail box members thereon. The lower end of the post is threadedly received with a socket, the socket integrally and orthogonally mounted to a lower support plate, with the lower support plate mounting a plurality of spike members projecting orthogonally downwardly from the lower support plate for securement within the ground.

Abstract: A durable plastic mounting board is used in attaching a rural-type mailbox to various styles of vertical posts. The mounting board includes a variety of mounting apertures used in different combinations to accommodate the various vertical post styles. Flexible tabs are provided on the sidewalls of the mounting board thereby adapting it to adjust to the manufacturing tolerances found in mailboxes presently on the market.

Abstract: A mailbox support post assembly (13) comprising an elongated hollow member (15) consisting of two identical parts (20, 22), each part (20, 22) having a cross-section characterized by a bulged central portion (24, 26) and flanges (28, 30 and 32, 34) extending from each side of the bulged central portion (24, 26). A mailbox support portion (40, 42) extending outwardly and upwardly from the elongated hollow member (15) for receiving a mailbox. An anchor shaft (70) may be clamped between the bulged central portions (24, 26).

Abstract: A rural mailbox and post assembly enabling the front end of the mailbox to be pulled forward and up to or inside a window of a motor vehicle for retrieval of the mail. The post is made up of upper and lower portions, pivotally joined so that the upper portion may be pulled forward around a pivot pin at the top of the lower portion, which is affixed to the ground or a base. Biasing means such as a spring is provided to maintain the upper post and attached box in upright position until pulled forward. When the box is released, the spring urges the box back into upright position. A handle at the front of the box enables it to be grasped and pulled from within the vehicle.

Abstract: A mailbox for receiving delivered mail includes a housing and a post for mounting the box to the ground. A door is connected to a shaft rotatably secured to the bottom edge of a door opening, and the door extends beyond the opening into a tail portion. A part of the housing floor is formed from a resilient material so that the door is normally stopped thereby upon opening. Should the door be forced further, the material will yield to allow the door to swing below the box to prevent damage. A security latch, hidden beneath the housing, includes a leaf spring normally positioned behind the door tail portion to prevent its opening. The spring may be moved into a slot in the door shaft, where the spring cooperates with a notch in the door to permit its opening. Upon closing of the door, the spring is released to its normal position, whereupon the door is again held shut. The flag target is carried at the end of a flag shaft that is rotatably and slidably secured to the housing interior.

Abstract: A stand for mailboxes provides an elongated structural assembly that includes an upper section that is rigidly mounted to a mailbox and a lower section that is rigidly mounted to a fixed location. The two sections are coaxially aligned next to each other and urged towards each other through the action of a spring member that is pre-stretched inside the inner and lower sections. The larger the deflection of the upper section with respect to the at rest coaxial alignment with the lower section, the larger the recovering force that is created perpendicular to the at rest coaxial alignment.

Abstract: A mailbox support apparatus having a mailbox mounting plate attached to a hollow post member includes a ground mount stake driving into the ground and received within the hollow post member.

Abstract: A device for supporting a mailbox which is moveable to allow the mailbox and support arm to absorb and avoid the full force of contact from vehicles and other external sources. The mailbox is supported by a flexible horizontal member extending from a main, vertical member. Additional protection is afforded by a flange disposed under tension.

Abstract: An intrustion-secure mail box is described as being particularly suited for rural and suburban delivery. A pair of vertically offset doors are provided, through the upper of which mail intended for delivery is inserted, and through the lower of which--lockably openable by the user--the delivered mail is retrieved. A "slide" arrangement is incorporated internal of the mail box--both to direct the delivered mail inserted through the upper door towards the lower door opening, and to act as a bar to prevent an unauthorized retrieval by a person trying to gain access by a reaching through the upper door to get at mail acculumations aggregated at the area of the locked lower door.

Abstract: The present invention relates to a mailbox mounting device that can swing about its support. Which it is mounted, which is less subject to damage due to impact from wet snow being plowed or other motor vehicles moving along the roadway. The device is composed of steel and wood laminated together to form one solid swivelable member and within its formed body a shearable pin is located. Held to a base plate by a bolt or pin, allowing the four flat surfaces to act as pivot plates when the shear pin has been broken with a predetermined force then the movement, in a horizontal plane, will take place.

Abstract: The support and protective structure for a mailbox or other similar structure comprises a first pipe adapted to be driven into or implanted in the ground and having means at the upper end for rotatably mounting the lower end of a second pipe and a second pipe. The second pipe has a first pipe portion having a lower end which is adapted to be journaled to the upper end of the first pipe, the first pipe portion being adapted to extend generally upwardly from the upper end of the first pipe to a first elbow, a second pipe portion extending laterally outwardly from the first elbow in a generally horizontal direction generally laterally outwardly from the first pipe portion to an outer second elbow, and a third pipe portion extending laterally to the side from the second elbow and the second pipe portion to a third elbow, and a fourth pipe portion extending angularly from the third elbow in a direction toward the second pipe portion.

Abstract: A post assembly for use with mailboxes and the like includes a ground-engaging stake of angle-iron, the stake having a lower penetrating portion and an upper protruding portion. A post has a lower end including a diagonal surface and a channel entirely along one side including a slot along one edge of the channel for receiving the upper protrucing portion of the ground-engaging stake. Fasteners penetrating the ground-engaging stake upper protruding portion engage the channel portion of the post. A coverstrip covers the channel, upper protruding portion of the stake, and fasteners so as to permit the assembly to appear as a solid post.

Abstract: A mailbox support device includes a generally horizontally extending main portion and an arrangement for facilitating a fixed support of a mailbox with respect to the main portion. A brace portion having first and second ends is operatively coupled to the main portion in a manner facilitating movement of the brace portion from a first position in which its second end is adjacent the main portion. A brace portion having first and second ends is operatively coupled to the main portion in a manner facilitating movement of the brace portion from a first position in which its second end is adjacent the main portion to a second position in which its second end is spaced from the main portion. The main portion includes an arrangement which facilitates a fixed connection of the main portion to a support, and the brace portion includes an arrangement which facilitates connecting the second end thereof to a support.

Abstract: A sheltered and repositionably mounted enclosure having a housing secured to and supported by a mounting post. The mounting post is positioned within a mounting sleeve. An outer ring-shaped gasket is attached to an inner wall of the mounting sleeve. An inner ring-shaped gasket is attached to a mounting post. The inner ring-shaped gasket abuts the outer ring-shaped gasket thereby forming a sealed space within the mounting sleeve and supporting the mounting post within the mounting sleeve. A retainer having a mound shape with a depression in the middle of the mound is attached to the bottom of the mounting sleeve. A mounting post bottom of the mounting post abuts the depression of the mound and thus the mounting post is supported in an approximately vertical position within the mounting sleeve. The mounting post is repositionable within the mounting sleeve and with respect to the retainer after the mounting post is displaced from the depression of the retainer.

Abstract: A rotatable mailbox support assembly for mounting a mailbox such that it can be rotated from a first position to a second position. The assembly has a base member which is adapted to be mounted to a vertical support post or to an outwardly extending arm. A rotatable support plate is rotatably mounted with respect to the base member such that a mailbox mounted to the support plate can be rotated with respect to the base member and support means. The rotatable support plate is journaled to the base member by a spindle which is concealed from the elements. A latch is attached to the base member and controls the position of the mailbox and permits manual release of the mailbox for rotation. An auxiliary arm is provided which can be used with the rotatable mounting assembly for mounting the assembly to a square or round vertical post. Additionally, an adapter is provided for replacing the standard wood block used in mounting a standard mailbox.

Abstract: A breakaway freestanding roadside structure in the form of a curbside brick mailbox is formed from a block of styrofoam, coated with successive layers of a mixture of stucco and lightweight aggregate filler, into a cutout of which a standard rural delivery mailbox fixture is placed. A wet outer coating layer is recessed down to a partially dug inner layer to simulate brickwork, the outer layer being shaped and colored to resemble the faces of brick, stone or other masonry elements and the inner layer being colored so that portions expressed by the recesses resemble intervening mortar joints. A mailbox flag is secured by an extended rod through the block to the interior of the mailbox. Modified embodiments take the form of planters, entranceways and fence posts.

Abstract: A device for supporting a container or a mailbox improves accessibility by providing for a mailbox or other container from a first position to a second position of up to one and one-half times or more beyond the first position.

Abstract: An automatically retractable rural mailbox which includes a mailbox which is slideably or rotatably mounted in relation to a fixed frame mounted on a post and which is automatically returned to its normal position by means of a spring. However, the mailbox is returned after being extended only after mail has been deposited in the mailbox and the letter carrier has again closed the mailbox door. This is achieved by a locking bar which locks the mailbox in an extended position, and a releasing bar which unlocks the locking bar and which cooperates with the door of the mailbox.

Abstract: A storage mail box is set forth wherein a conventional rural type mail box is formed with a hingeably mounted false floor including an overlying hingedly mounted door is positionable in a first position overlying an opening in said false floor and pivotal to a second position securable to a wall of the mail box to provide access to the false floor. The false floor includes a directed chute wherein the chute is angulated and oriented to direct mail positioned within the mail box into a central hollow support post wherein the mail drops to enable selective access through a rear locked access door of the post.

Abstract: A sturdy, virtually indestructible mailbox is presented comprising a thick-gauged cylindrical mailbox shell, a top pipe stem, a middle resilient spring stem and a bottom anchor post pipe stem having a circular driving auger. The shell and stems are connected by means of horizontal holes in the pieces through which are inserted first, second and third attaching bolts.The inside of the mailbox shell includes a perforated horizontal letter tray and a spring-ball latch mechanism that contacts an inner horizontal door flange for latching the door of the mailbox.

Abstract: A receptacle suitable for a mail box comprising an upright cylindrical housing having a transversely extending floor that is spaced upwardly a substantial distance from the lower end of the housing and a hemispherical top closing the upper end of the housing. A chamber to hold the mail is located between the floor and the top. A hinged door is attached to the housing and covers an opening formed in the side of the housing. Lag bolts are provided to detachably and firmly connect the housing to a post. Several holes are formed around the perimeter of the housing at the lower end thereof and well below the floor. Each hole is adapted to receive one of the lag bolts. There is also a hole formed in the center of the floor for receiving one of the bolts.

Abstract: A newspaper delivery receptacle to receive newspapers. The tube is securely attached to its support bracket by a wedge which may be inserted without tools. The support bracket is easily and securely mountable on either side of a support post. The tube opening is reinforced for long life.

Abstract: A rural mailbox support includes a mailbox, a vertical support member and a base for mounting the vertical support member in the ground. One or more C-shaped members extend laterally from the vertical support, and have first and second extending arms extending laterally therefrom. The C-shaped members also have longitudinal slots in the extending arms. L-shaped brackets are provided for connecting the C-shaped base to the mailbox. The C-shaped brackets have locking tabs at each end adapted for insertion into the longitudinal slots and for reception of bolts so that the L-shaped brackets can be adjustably positioned for a variety of sizes of mailboxes, or other equipment.

Abstract: A rotatable mailbox pedestal is disclosed having a locking mechanism configured such that after being unlocked to permit rotation, it can be relocked in a forward orientation automatically, i.e. without further manipulation of the lock. The locking mechanism comprises a bail member pivotally mounted to the rotatable portion of the pedestal and having a notch positioned such that when rotation of the pedestal brings the notch in alignment with the bolt of the lock, the bail member pivots downward under the force of gravity to engage the notch with the lock bolt. Means are provided for conveniently and securely mounting a lock of the type commonly used in postal applications so that a postal worker may unlock the pedestal for rotation, withdraw the key for use on a mailbox mounted on the pedestal, and relock the pedestal in a forward position without further use of the key.

Abstract: A mailbox which includes a hollow supporting base extending therefrom. The base and mailbox are integrally molded into a unitary structure which positions the box at the correct delivery height. The box may have a false bottom to support the articles of mail, integrally formed handle, and means for supporting/positioning a flag. The integral base and box are stable and self-righting when the hollow base is filled with ballast.

Abstract: A roadside mail box formed of an L-shaped tubular member erected with the "L" inverted and having a mail compartment in its horizontal leg. In a preferred embodiment, a closure sleeve, closed at one end, is coaxially, rotatably disposed on the horizontal leg. Respective elongated openings on the side of the horizontal leg and in the sidewall of the sleeve, register at one rotational position of the sleeve to permit access to the mail compartment and, in other rotational positions of the sleeve, are out of registration to close the compartment. Detents establish open and closed positions of the sleeve which is pendulously urged to the closed position. In alternative forms of construction the closure sleeve is absent and a sliding or hinged door closes the opening to the mail compartment.

Abstract: The subject invention is a multiple access mailbox and parcel receptacle, which comprises, in general, a longitudinally extending housing with a correspondingly internally disposed hollow chamber. Said hollow chamber conforms, in general, to the external shape of the mailbox, and there is dual entry access to this hollow chamber. First, there is a hinged door for entrance from what is considered to be front of the box, with a second access door on either the sides, back, or front of said mailbox. A spring-loaded hinge member is integrally interconnected with said second door whereby said second access door automatically swings shut after opening, and there is a one-way locking device by which arrangement such second door cannot be pushed open from the inside.

Abstract: A mailbox receptacle is combined with a supporting post, on which it forms an upper portion characterized by a floor extending transversally across the interior of the tubular post at a level spaced somewhat below the upper end. A lateral opening is provided into the interior space above the floor, and a tubular sleeve is coaxially rotatably mounted on the upper end region of the structure. The tubular sleeve has a lateral opening which registers with the receptacle opening in one orientation of the sleeve. And the tubular sleeve may be rotated to fully close the receptacle opening. Stops are provided to define the angular extremes of rotary movement of the tubular sleeve, and the sleeve or a cap structure provided on the post over the sleeve may include a signal flag which, particularly in the latter case, may be caused to operate in conjunction with rotation of the sleeve in the course of opening or closing the receptacle.

Abstract: A mailbox support which has an elongated frame slidably fitted between diagonal brackets on a collar attached to a pole, the frame being pivotal about its contact points against the brackets, and the collar being adjustably clamped against the pole between a plate and a facing U-channel.

Abstract: Disclosed herein is a mailbox brace which includes a horizontal planar shelf upon which an end portion of the mail box rests, an inverted U-shaped strap overlying the mail box above the shelf portion and fastened to the shelf by means of outwardly turned horizontal flanges through nuts and bolts, a vertical plate joined to the shelf at respective edges thereof so that a substantially L-shaped bracket in cross section is formed, in which the vertical plate is affixed to a support post by means of screws, or by means of a horseshoe clamp which straddles the post and the vertical plate having an aperture plate disposed on a face of the vertical plate opposite the post so that the horseshoe clamp termini pass therethrough. The termini are threaded and suitable nuts are provided for affixing the horseshoe clamp in a secure manner.

Abstract: This invention serves several functions in a utility manner. One of the utility functions is to provide a container for receiving mail in an enclosure which is expandable when the mail load is heavy in volume. The other associated utility functions are those normally present in the vicinity of a yard marker. The utility yard marker consists of a frame, an anchoring component, covering over the frame, securing arms for objects, and an enclosed storage area for winter weather products, as well as other associated functions.

Abstract: The specification discloses an adjustable mailbox stand (10) that includes a standard studded fence post (12) with a support bracket (14) mounted thereon. The bracket (14) includes a sleeve (30) dimensioned to fit over and slide along the fence post 12. A truss arm (36) extends upwardly and outwardly from the sleeve (30), and a plate (38) is mounted on the upper end of the truss arm for securing a standard sized mailbox thereto. An indent (32) is formed in the sleeve (30) adjacent to studs (22) that extend from and along the fence post (12). A set screw (34) is disposed on the opposite side of the sleeve (30) from the indent (32) so that when the set screw (34) is tightened, the indent (32) is forced between the studs (22) to lock the sleeve (30) in a desired position.

Abstract: According to the present invention impact damage to a mail box can be prevented entirely or at least minimized to the extent whereby the mail box can still function by enclosing the exterior surface of the mail box in a novel cage constructed of impact resistant material and adapted to be fastened to the mail box standard in such manner that any impact force applied to the cage is primarily transmitted from the cage to the mail box standard. The cage is further characterized by a flexural strength adequate to prevent it upon being subjected to an impact force from indenting or otherwise deforming the mail box surface to an extent preventing satisfactory opening and closing of the mail box door by U.S. Post Office personnel.

Abstract: A mailbox comprises a hollow, closed body having an open end with a door pivotally mounted therein. A rigid mounting sleeve, formed integrally and in one piece with the body, depends from the base of the mailbox and is shaped to telescopingly receive a support post therein to securely mount the mailbox and its contents at a desired location. The door preferably has a recessed handle and a recessed signal flag pivotally mounted in the exterior face of the door.

Abstract: An energy absorbing support for mailboxes and the like devices mounted alongside roadways where they are exposed to impact by vehicles has a post of generally reverse "C" shape with a depending upright leg secured in the socket of an anchor driven in the ground, an upwardly inclined generally horizontal lateral leg portion, an outwardly sloping generally vertical leg portion extending from the outer end of the lateral portion, and a reverse horizontal top leg portion overlying the lateral leg portion and having mountings thereon carrying mailboxes and the like. The depending leg portion is vertically adjustable in the socket of the ground anchor so that the upper end of the lateral leg portion and the lower end of the sloping vertical leg portion will be at a height above ground level within the range of the height of an automobile front bumper to receive initial impact of a vehicle crashing into the support.

Abstract: The retriever comprises a hinged, foldable mailbox containing arm which is positioned in a vertical, folded upright position medially between the user's home and the position on a highway at which the mail delivery vehicle will stop. In the folded, upright position, the arm is locked. A release cord extends to the mail delivery position. A second release cord extends to the house. The locking mechanism may be released by tugging on one of the release cords at which time the arm will assume a horizontal extended position in the direction of the release cord. In this manner, the mailbox may selectively be positioned at the road or at the highway as desired. A return mechanism is also provided for returning the arm to its vertical, folded position.

Abstract: A bracket for mounting a mail box or the like has a pair of substantially identical upper and lower plate numbers each having surrounding walls. A series of open housings project from the plate members, and are interconnected to one another and to the walls by reinforcing ribs. The housings have interior vertical splines, and elongated posts are engaged in aligned pairs of the housings and frictionally locked therein by the splines. The lower plate member is embedded in the earth along with portions of the posts, and a mailbox is secured to the exposed, upper plate member.

Abstract: A mailbox standard is presented which includes a hollow steel post, pointed at one end, for driving into the ground. A collar fits over the post and is adjustably secured thereto by means of a setscrew or the like. Extending upwardly and obliquely from the collar is a truss having an adjustable support bracket pivotally maintained at the end thereof. The support bracket is adapted for receiving various sizes of mailboxes in any of numerous positions of alignment with respect to the post itself. The invention also includes a collar maintained upon the truss for receiving a newspaper receptacle or the like.

Abstract: Apparatus for protecting cantilevered mailboxes from damage caused by collision with passing vehicles, maintenance equipment and other objects thrown by the plows against the boxes while clearing the roadways. More specifically, the apparatus includes a vertically disposed column anchored in the ground and a laterally projecting arm hingedly secured to the upper portion of the column for swingably supporting the mailbox. A shear pin normally locks the hinge and associated arm and box against rotation. The pin is designed to shear in response to a predetermined torsional stress upon the hinge which stress is produced by the impact of a vehicle or other object striking the box or arm thereby permitting the box and arm to swing to non-obstructing position as the object passes.

Abstract: A mailbox support device is provided having an upright post inserted in the ground by means of auger teeth and secured by a stabilizing plate. The support includes a mailbox arm rotatably mounted on the post. The arm is mounted for rotation about the post and can assume a plurality of stable retained positions. The rotational motion is allowed even under extremes of winter weather and permits the mailbox arm to be positioned overhanging the edge of a street or road for easy access while allowing it to be rotated out of the way of oncoming snowplows and other vehicles.

Abstract: A mail box gang apparatus which utilizes the construction of a mail box as an inherent structural component of the gang to achieve uniformity in mail box appearance, greater strength and permanency. The appartus may include two horizontal rows of mail boxes mounted one upon the other, the boxes being affixed to one another at both the upper and lower portions to form an integral beam type structure of substantial strength. To facilitate such ganging in the manner described, the mail boxes are modified to include a new flagging system which advises the mail man of the presence of outgoing mail. This flag system affixed to the door of the box includes a panel which is merely rotated to disclose a flag indication and is automatically reset upon opening of the box. In the preferred embodiment, the mail box door is modified to facilitate mounting of the flag and includes a novel latch device together with a pleasing appearance.

Abstract: A newspaper delivery box adapted to support and attach a mailbox thereto has a support insert provided therein to lift a newspaper contained in the box away from the bottom of the box to thereby protect the newspaper from water contained thereon. Optionally, at least one divider is provided in the box to retain a plurality of newspapers within the box.

Abstract: An improved rural mailbox mounting structure for road-side use which is less subject to damage due to impact from snowplows and the like. A platform on which the mailbox is attached is connected to a tubular sleeve bearing at a predetermined angle. Affixed to a mounting post and extending outwardly therefrom toward the road in a horizontal plane is a mounting plate. Secured to the mounting plate is a cylindrical rod which extends upwardly therefrom at an angle which is the supplement of the predetermined angle formed between the mailbox mounting platform and the longitudinal axis of the sleeve bearing. Therefore, when the sleeve bearing is positioned over the cylindrical rod, gravitational force tends to maintain the mailbox platform in a horizontal plane. When the mailbox is struck, it yields to the striking force and rotates about the cylindrical rod as an axis. When the force is removed, gravity again returns the mailbox to its normal position.