A grinder has first and second body parts rotatable to each other. The first and second body parts engage the outer and inner burrs, respectively. A supporting flange in the second body part forms a seat to receive the outer burr. The outer burr is pressed toward the supporting flange to localize the outer burr against undesirable forces generated during grinding. A ring-shaped plate is sandwiched between the supporting flange and the outer burr. The outer burr presses on a bearing surface of the plate. The bearing surface is more resistant to abrasion than the supporting flange, advantageously reducing wear debris generation due to abrasion by the outer burr. Furthermore, a shaft engaging the inner burr is shaped as a triangular column for more effectively transmitting a received torque to the inner burr, allowing a plastic shaft to be used so as to reduce the manufacturing cost.

A grinder has first and second body parts rotatable to each other. The first and second body parts engage the outer and inner burrs, respectively. A supporting flange in the second body part forms a seat to receive the outer burr. The outer burr is pressed toward the supporting flange to localize the outer burr against undesirable forces generated during grinding. A ring-shaped plate is sandwiched between the supporting flange and the outer burr. The outer burr presses on a bearing surface of the plate. The bearing surface is more resistant to abrasion than the supporting flange, advantageously reducing wear debris generation due to abrasion by the outer burr. Furthermore, a shaft engaging the inner burr is shaped as a triangular column for more effectively transmitting a received torque to the inner burr, allowing a plastic shaft to be used so as to reduce the manufacturing cost.

A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

A coffee bean grinder is provided, comprising a housing assembly, a shaft component, and a securing member. The shaft component is assembled in the housing assembly. When a coffee bean grinding complex is formed by an inner grinding member of the shaft component and an outer grinding member of the housing assembly, the shaft component and the housing assembly can be easily assembled and secured through the structural configuration of the securing member, and also through which, the shaft component and the housing assembly can also be disassembled for cleaning and maintenance after grinding operation.

A grinder specially adapted for grinding herbs has a sheet with unique groove and hole patterns forming a grinding area. Although it is a manual grinder, the grinder does not require the use of cutting blades, making it much safer to use. The grinder is particularly suitable for grinding softer herbs.

A grinder specially adapted for grinding herbs has a sheet with unique groove and hole patterns forming a grinding area. Although it is a manual grinder, the grinder does not require the use of cutting blades, making it much safer to use. The grinder is particularly suitable for grinding softer herbs.

The present disclosure describes a grinding apparatus preferably comprised of upper, central and lower bodies that are magnetically connected to one another. The central body is further comprised of cutting edges positioned on a center portion to cut and evacuate herbs. The upper body is comprised of outer grinding teeth that can cut and grind herbs trapped proximate an outer rim of the central body. Inner grinding teeth positioned on the upper body and having curved inner faces abut against a correspondingly cylindrical member of the central body to limit the radial play between the upper and central bodies during operation. A teeth or gear system is also disclosed to provide torque transfer and facilitate the connection between the central and lower bodies.

An improved herb grinder system is described. Some implementations can include an herb grinder designed to keep ground material from drying out by providing moisture to an interior area of the grinder, where the moisture is delivered via packets or other suitable devices to keep the ground material in a moist environment. In some implementations, the grinder is modular to permit various aspects or configurations to be modified and adjusted for optimal performance of ground material storage. The herb grinder system can provide storage times that can vary from a few hours to days or longer by maintaining or increasing moisture levels to help preserve the quality of ground material.

An improved herb grinder system is described. Some implementations can include an herb grinder designed to keep ground material from drying out by providing moisture to an interior area of the grinder, where the moisture is delivered via packets or other suitable devices to keep the ground material in a moist environment. In some implementations, the grinder is modular to permit various aspects or configurations to be modified and adjusted for optimal performance of ground material storage. The herb grinder system can provide storage times that can vary from a few hours to days or longer by maintaining or increasing moisture levels to help preserve the quality of ground material.

A grinder specially adapted for grinding herbs has a sheet with unique groove and hole patterns forming a grinding area. Although it is a manual grinder, the grinder does not require the use of cutting blades, making it much safer to use. The grinder is particularly suitable for grinding softer herbs.