A mailbox stand comprising a vertical support sleeve; a vertical extension shaft rotatably and vertically adjustably mounted within and extending vertically from the upper opening of the bore of the vertical support sleeve; a support arm pivotally attached to the upper end of the vertical extension
A mailbox stand comprising a vertical support sleeve; a vertical extension shaft rotatably and vertically adjustably mounted within and extending vertically from the upper opening of the bore of the vertical support sleeve; a support arm pivotally attached to the upper end of the vertical extension shaft; a mailbox attachment bracket fixedly attached to the support arm; a first breakaway plate fixedly attached to the lower end of the vertical support sleeve; a second breakaway plate fixedly attached to the lower surface of the first breakaway plate by means of threaded bolts; and a breakaway plate support shaft fixedly attached to and extending downward from the lower surface of the second breakaway plate.
대표청구항▼
[ I claim:] [1.] A mailbox stand comprising:(a) A mailbox support arm having a mailbox attachment end and having a pivotal attachment end, the pivotal attachment end of the mailbox support arm being bent at an acute angle away from the axial midline of the mailbox attachment end;(b) A vertical exten
[ I claim:] [1.] A mailbox stand comprising:(a) A mailbox support arm having a mailbox attachment end and having a pivotal attachment end, the pivotal attachment end of the mailbox support arm being bent at an acute angle away from the axial midline of the mailbox attachment end;(b) A vertical extension and rotation shaft having a circular cross-section, having an upper support arm attachment end, and having a lower end, the support arm attachment end being bent at an acute angle away from the axial midline of the vertical extension and rotation shaft;(c) A pivotal mounting means pivotally attaching the mailbox support arm to the support arm attachment end of the vertical extension and rotation shaft so that the pivotal attachment end of the mailbox support arm extends substantially perpendicularly from the support arm attachment end of the vertical extension and rotation shaft, and so that upon application of a striking force to a mailbox attached to the mailbox attachment end of the mailbox support arm, the mailbox may pivot around the support arm attachment end of the vertical extension and rotation shaft, wherein the pivotal mounting means comprises a first circular collar fixedly mounted over the support arm attachment end of the vertical extension and rotation shaft, a cylindrical sleeve rotatably mounted over the support arm attachment end of the vertical extension and rotation shaft and directly above the first circular collar, and a second circular collar fixedly mounted by means of a set screw over the support arm attachment end of the vertical extension and rotation shaft and directly above the cylindrical sleeve, said second circular collar being mounted to the support arm attachment end of the vertical extension and rotation shaft by a set screw extending through said second circular collar and contacting said support arm attachment end;(d) A vertical support sleeve having a circular cross-section, having an upper end, and having a lower end, the upper end of the vertical support sleeve being fitted for slidably and rotatably receiving the lower end of the vertical extension and rotation shaft, the lower end of the vertical extension and rotation shaft being slidably and rotatably positioned within the upper end of the vertical support sleeve;(e) A rotatable mounting means rotatably attaching the lower end of the vertical extension and rotation shaft to the upper end of the vertical support sleeve so that upon application of such a striking force to such mailbox, the vertical extension and rotation shaft may simultaneously rotate within the vertical support sleeve, wherein the rotatable mounting means comprises a threaded aperture within and through the sidewall of the vertical support sleeve, the threaded aperture being positioned thereon to overlie the vertical extension and rotation shaft, and a set screw threadedly mounted within the threaded aperture;(f) An upper breakaway plate, having an upper surface, having a lower surface, and having a plurality of upper bolt receiving apertures extending from its upper surface to its lower surface, the upper surface of the upper breakaway plate being fixedly attached to the lower end of the vertical support sleeve;(g) A lower breakaway plate, having an upper surface, having a lower surface, and having a plurality of lower bolt receiving apertures, the lower bolt receiving apertures extending from the upper surface of the lower breakaway plate to its lower surface, the lower bolt receiving apertures being positioned upon the lower breakaway plate so that they may be aligned with the upper bolt receiving apertures of the upper breakaway plate, the upper surface of the lower breakaway plate being in contact with the lower surface of the upper breakaway plate, and positioned so that the lower bolt receiving apertures are aligned with the upper bolt receiving apertures;(h) A breakaway plate support shaft having an upper end and a lower end, the upper end being fixedly attached to the lower surface of the lower breakaway plate, the breakaway plate support shaft extending downward from the lower surface of the lower breakaway plate; and,(i) A plurality of bolt fasteners, the bolt fasteners passing through the upper and lower bolt receiving apertures of the upper and lower breakaway plates, fixedly attaching the upper breakaway plate to the lower breakaway plate, the bolt fasteners being of a gauge and being composed of a material so that upon application of such a striking force to such a mailbox the bolt fasteners may simultaneously fracture, allowing the mailbox stand to fall to the ground.
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