초록 ▼

A sign stand for supporting signs in windy environments includes a base, a lower staff portion secured to the base, and an upper staff portion for receiving a display sign. The sign stand includes a platform support having a bracket secured thereto. A platform connected to the upper staff portion is

A sign stand for supporting signs in windy environments includes a base, a lower staff portion secured to the base, and an upper staff portion for receiving a display sign. The sign stand includes a platform support having a bracket secured thereto. A platform connected to the upper staff portion is pivotally mounted upon the bracket so that the upper staff portion has a range of pivotal motion in a plane. A spring exerts a force to urge the platform toward the platform support and to control the deflection of the upper staff portion whenever a force is applied to the upper staff portion to tend to rotate the platform about the bracket.

대표청구항 ▼

A sign stand for supporting signs for display in windy environments, comprising: a base; a first staff having a first end affixed to the base and a second end extending away therefrom; an interconnecting portion comprising a first bracket connected to the second end of the first staff; a second brac

A sign stand for supporting signs for display in windy environments, comprising: a base; a first staff having a first end affixed to the base and a second end extending away therefrom; an interconnecting portion comprising a first bracket connected to the second end of the first staff; a second bracket connected to the first bracket; a second staff adapted for mounting a sign, the second staff having a platform extending from a first end thereof, the platform having a central portion resting upon the interconnecting portion to provide vertical stability; means for urging the platform toward the interconnecting portion; a first pivotal member extending from the platform to define a first pivotal axis, the second bracket including first notch means formed therein for pivotally mounting the first pivotal member thereto; a second pivotal member extending from the platform to define a second pivotal axis parallel to the first pivotal axis, the second bracket having a second notch means formed therein for pivotally mounting the second pivotal member, the platform being pivotal only about the first and second pivotal axes in response to application of wind forces to the sign; a shaft mounted to the platform to permit pivotal motion of the platform only about the pair of pivotal axes; means for biasing the shaft to urge the platform toward the second bracket to retain and support the platform and second staff upon the interconnecting portion, and to control deflection of the second staff about the pair of pivotal axes in response to forces tending to rotate the second staff relative to the interconnecting portion, the shaft being supported during pivoting by the respective pivotal members; and means for adjusting the bias to control the angle of deflection of the second staff in response to application of a particular wind force to the sign.