A grinder is provided that grinds materials such as tobacco, herb, spices, or food into smaller pieces for subsequent use. In some embodiments, relative motion between two components grinds the material into smaller pieces. In some embodiments, a cord is used to induce rotational motion between components. In various embodiments, a gear system having a driver is used to induce rotational motion where the driver is moved against a surface to drive the gear system. In some embodiments, a user moves a collar, a handle, or other component to induce rotational motion or longitudinal motion to grind the material.

An herb grinder with a cleaning attachment comprises a bristle assembly and a grinding assembly which is further comprised of a top grinding component, a bottom grinding component and a collecting compartment. The top grinding component and the bottom grinding component are detachably connected and are configured to be rotated relatively to each other. The bristle assembly and the grinding assembly form an internal space configured to receive the bristle plate, and are both interlocking and magnetically connected to prevent relative rotation between the bristle assembly and the grinding assembly when grinding. The bristle assembly may be detachable to clean the top grinding component and the bottom grinding component. The herb grinder further comprises a housing which is interchangeable with the grinding assembly for convenient portability and storage.

An herb grinder with a cleaning attachment comprises a bristle assembly and a grinding assembly which is further comprised of a top grinding component, a bottom grinding component and a collecting compartment. The top grinding component and the bottom grinding component are detachably connected and are configured to be rotated relatively to each other. The bristle assembly and the grinding assembly form an internal space configured to receive the bristle plate, and are both interlocking and magnetically connected to prevent relative rotation between the bristle assembly and the grinding assembly when grinding. The bristle assembly may be detachable to clean the top grinding component and the bottom grinding component. The herb grinder further comprises a housing which is interchangeable with the grinding assembly for convenient portability and storage.

A grinder is provided that generally comprises a rotor that is at least partially disposed within a housing. Materials such as tobacco, herb, spices, or food is loaded into the housing, and a user turns the rotor relative to the housing to drive protrusions such as blades extending from a shaft of the rotor into the tobacco, herb, spices, or food. This grinds the contents into smaller pieces. A funnel portion at a lower end of the grinder can dispense the smaller, ground pieces for subsequent use. Some embodiments of the grinder include a rotatable sleeve to selectively open and close access to the housing of the grinder. Various embodiments of the grinder include a divider and an auger to allow only sufficiently ground pieces of contents to be dispensed from the grinder.

A grinder is provided that generally comprises a rotor that is at least partially disposed within a housing. Materials such as tobacco, herb, spices, or food is loaded into the housing, and a user turns the rotor relative to the housing to drive protrusions such as blades extending from a shaft of the rotor into the tobacco, herb, spices, or food. This grinds the contents into smaller pieces. A funnel portion at a lower end of the grinder can dispense the smaller, ground pieces for subsequent use. Some embodiments of the grinder include a rotatable sleeve to selectively open and close access to the housing of the grinder. Various embodiments of the grinder include a divider and an auger to allow only sufficiently ground pieces of contents to be dispensed from the grinder.

An herb grinder with a cleaning attachment comprises a bristle assembly and a grinding assembly which is further comprised of a top grinding component, a bottom grinding component and a collecting compartment. The top grinding component and the bottom grinding component are detachably connected and are configured to be rotated relatively to each other. The bristle assembly and the grinding assembly form an internal space configured to receive the bristle plate, and are both interlocking and magnetically connected to prevent relative rotation between the bristle assembly and the grinding assembly when grinding. The bristle assembly may be detachable to clean the top grinding component and the bottom grinding component. The herb grinder further comprises a housing which is interchangeable with the grinding assembly for convenient portability and storage.

An herb grinder with a cleaning attachment comprises a bristle assembly and a grinding assembly which is further comprised of a top grinding component, a bottom grinding component and a collecting compartment. The top grinding component and the bottom grinding component are detachably connected and are configured to be rotated relatively to each other. The bristle assembly and the grinding assembly form an internal space configured to receive the bristle plate, and are both interlocking and magnetically connected to prevent relative rotation between the bristle assembly and the grinding assembly when grinding. The bristle assembly may be detachable to clean the top grinding component and the bottom grinding component. The herb grinder further comprises a housing which is interchangeable with the grinding assembly for convenient portability and storage.