초록 ▼

A chalkboard chart holder (10) includes at least two spring-loaded, normally-closed, hand-openable, clamp assemblies (12) having permanent magnets (14) thereon mounted on an elongated support member (16). The chalkboard chart holder can be attached to a ferromagnetic chalkboard (68) by the magnets o

A chalkboard chart holder (10) includes at least two spring-loaded, normally-closed, hand-openable, clamp assemblies (12) having permanent magnets (14) thereon mounted on an elongated support member (16). The chalkboard chart holder can be attached to a ferromagnetic chalkboard (68) by the magnets on the clamps so as to hold a chart (72) in the clamps on the chalkboard.

대표청구항 ▼

A chalkboard chart holder comprising: at least two spring-loaded, normally-closed, hand-openable clamp assemblies, each of said clamp assemblies comprising first and second clamping members biased toward one another by spring means but including an actuation means which, when manually impinged on, m

A chalkboard chart holder comprising: at least two spring-loaded, normally-closed, hand-openable clamp assemblies, each of said clamp assemblies comprising first and second clamping members biased toward one another by spring means but including an actuation means which, when manually impinged on, moves said clamping members away from one another, to thereby form a normally-closed, but manually openable, clamp mouth for gripping sheet-like materials; at least two permanent magnet assemblies having fastening surfaces; and an elongated support member, each of said clamp assemblies being attached to said elongated support member but being substantially spaced from one another along said elongated support member with said clamp mouths being positioned parallel with one another so that they can simultaneously hold a sheet in one plane and said permanent magnet assemblies being attached to said elongated support, but being substantially spaced from one another along said elongated support member with said attachment surfaces being in substantially the same attachment plane, said attachment plane not passing through said elongated support member or said clamp assemblies; said permanent magnet assemblies being attached to top rear portions of said clamp assemblies and said rear surfaces of said clamp assemblies being adjacent to and attached to a front surface of said elongated support, the permanent magnet assemblies extending rearwardly from said clamp assemblies a distance grater then the thickness of said elongated support member so as to extend behind the support member with the fastening surfaces being behind the support member; whereby said chalkboard chart holder can be placed on a ferromagnetic chalkboard with said fastening surfaces of said permanent magnet assemblies against said chalkboard and held there by magnetic attraction while a chart is held in said mouths of said clamp assemblies on said chalkboard.