公开(公告)号：US20120216414A1

公开(公告)日：2012-08-30

申请号：US13035268

申请日：2011-02-25

申请人： JOHN JONES ,  JIMMY ROBERTS

发明人： JOHN JONES ,  JIMMY ROBERTS

IPC分类号： B44D3/38

CPC分类号： B44D3/38 ,  B65H75/4431 ,  B65H2701/357

摘要： A chalk box assembly for providing an automated retracting chalk line comprising: a chalk box housing; a spring assembly within the housing; a spool for retaining a chalk line within the housing, where the spring assembly is attached to the spool and provides for the retraction of the chalk line; a chalk compartment within the housing, where chalk is stored within the chalk compartment; and a retraction button engaged with the spring assembly, where the button causes the release of the spring assembly for the retraction of the chalk line. The chalk box assembly according to the present invention may further include a chalk line guide and a chalk fill door. In one particular embodiment of the present invention, the chalk box assembly further includes a belt clip on one side thereof.

摘要翻译： 一种用于提供自动缩回白垩线的白垩盒组件，包括：白垩盒壳体; 壳体内的弹簧组件; 用于将白垩线保持在壳体内的线轴，其中弹簧组件附接到线轴并提供粉笔线的缩回; 外壳内的粉笔隔间，白垩存储在白垩室内; 以及与弹簧组件接合的缩回按钮，其中该按钮导致弹簧组件的释放以使粉笔线缩回。 根据本发明的粉笔盒组件还可以包括粉笔线引导件和粉笔填充门。 在本发明的一个具体实施例中，白垩盒组件还包括在其一侧的带夹。