Concrete surface working machine with actuator-controlled rock tamper

A concrete surface working machine, the concrete surface working machine comprising:

• a base portion and a screed head mounted at the base portion;
• wherein the screed head comprises a grade setting device and a vibrating element attached at a frame of the screed head, and wherein the grade setting device operates to establish a grade of a concrete surface, and wherein the vibrating element operates to screed the concrete surface at the established grade;
• wherein the screed head comprises a rock tamper adjustably attached at the frame of the screed head via a pair of support elements;
• wherein the screed head comprises a pair of actuators that, when operated, adjust the support elements to adjust the rock tamper relative to the frame;
• wherein the concrete surface working machine is operable to position the vibrating element at the concrete surface;
• wherein the actuators are operated by an operator of the concrete surface working machine to adjust a height of the rock tamper relative to the vibrating element and the concrete surface while the screed head is moved along the concrete surface;
• and
• wherein the actuators are manually operated by the operator of the concrete surface working machine to raise the rock tamper above the concrete surface and to engage the rock tamper with a locking mechanism to retain the rock tamper in the raised position.

A concrete surface working machine, the concrete surface working machine comprising:

• a base portion and a screed head mounted at the base portion;
• wherein the screed head comprises a grade setting device and a vibrating element attached at a frame of the screed head, and wherein the grade setting device operates to establish a grade of a concrete surface, and wherein the vibrating element operates to screed the concrete surface at the established grade;
• wherein the screed head comprises a rock tamper adjustably attached at the frame of the screed head via a pair of support elements;
• wherein the screed head comprises a pair of actuators that, when operated, adjust the support elements to adjust the rock tamper relative to the frame;
• wherein the concrete surface working machine is operable to position the vibrating element at the concrete surface;
• wherein the actuators are operated by an operator of the concrete surface working machine to adjust a height of the rock tamper relative to the vibrating element and the concrete surface while the screed head is moved along the concrete surface;
• and
• wherein, while the screed head is moved along the concrete surface, the rock tamper engages the concrete surface ahead of the vibrating element.

A concrete surface working machine, the concrete surface working machine comprising:

• a base portion and a surface working head mounted at the base portion;
• wherein the surface working head comprises a surface working element attached at a frame of the surface working head;
• wherein the surface working head comprises a rock tamper adjustably attached at the frame of the surface working head via a pair of support elements;
• wherein the surface working head comprises a pair of actuators that, when operated, adjust the support elements to adjust the rock tamper relative to the frame;
• wherein the concrete surface working machine is operable to position the surface working element at the concrete surface;
• wherein the actuators are operated by an operator of the concrete surface working machine to adjust a height of the rock tamper relative to the surface working element and the concrete surface while the surface working head is moved along the concrete surface;
• and
• wherein the actuators are manually operated by the operator of the concrete surface working machine to raise the rock tamper above the concrete surface and to engage the rock tamper with a locking mechanism to retain the rock tamper in the raised position.

A concrete surface working machine, the concrete surface working machine comprising:

• a base portion and a surface working head mounted at the base portion;
• wherein the surface working head comprises a surface working element attached at a frame of the surface working head;
• wherein the surface working head comprises a rock tamper adjustably attached at the frame of the surface working head via a pair of support elements;
• wherein the surface working head comprises a pair of actuators that, when operated, adjust the support elements to adjust the rock tamper relative to the frame;
• wherein the concrete surface working machine is operable to position the surface working element at the concrete surface;
• wherein the actuators are operated by an operator of the concrete surface working machine to adjust a height of the rock tamper relative to the surface working element and the concrete surface while the surface working head is moved along the concrete surface;
• and
• wherein the support elements each comprise a spring-loaded support element having a biasing element that urges the rock tamper downward relative to the frame.

A concrete surface working machine, the concrete surface working machine comprising:

• a base portion and a surface working head mounted at the base portion;
• wherein the surface working head comprises a surface working element attached at a frame of the surface working head;
• wherein the surface working head comprises a rock tamper adjustably attached at the frame of the surface working head via a pair of support elements;
• wherein the surface working head comprises a pair of actuators that, when operated, adjust the support elements to adjust the rock tamper relative to the frame;
• wherein the concrete surface working machine is operable to position the surface working element at the concrete surface;
• wherein the actuators are operated by an operator of the concrete surface working machine to adjust a height of the rock tamper relative to the surface working element and the concrete surface while the surface working head is moved along the concrete surface;
• wherein the rock tamper comprises a cylindrical mesh element attached at a shaft, and wherein the shaft is rotatably attached at a lower end of each of the support elements;
• and
• wherein the ends of the shaft are adjustably mounted at the lower ends of the support elements via a plurality of shims at the lower ends of the support elements.