JPH0131445Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a potter's wheel for making pottery.The potter's wheel that is commonly used in the past is rotated by the action of the feet, so the clay placed on the base of the potter's wheel is manually shaped into the desired shape. This technique is not easy for anyone but an expert, as it requires both foot and hand movements at the same time. This project replaces the rotation of this potter's wheel with a power device,
Not only can you change the speed of rotation at will, just like when turning with your feet, but you can also switch the power to manual mode at any time if necessary, making it easier to rotate the potter's wheel. The purpose was to make it easier for anyone to mold products made of clay.

The present invention will be explained below with reference to attached drawings showing examples. 1 is a machine frame with a platform 2 for placing clay on the upper surface attached to a support frame 3, and the lower end of the support frame 3 has a vertical axis. 4, the outer peripheral surface of the rotating plate 5 is covered with rubber 6,
The intermediate shaft 7 is placed in a suitable position on this rubber-covered rotary plate.
The pinion 8 mounted above is in contact with the intermediate shaft, which connects the coaxial transmission gear 9 to the output gear 11 of the motor 10.
It is connected to the motor shaft by meshing with the motor shaft. The motor and intermediate shaft are firmly attached to a mounting frame 12, and the mounting frame 12 is attached to a sleeve piece 1 provided on the center side of the machine frame 1.
3 is pivotally supported 16 on a fixed support frame 15 provided on the upper surface of the battery box 14, and the outer end of a tension spring 17 that is pulled toward the center of the machine frame 1 is hooked to the mounting frame above the shaft support. The mounting frame 12 is pulled toward the fixed support frame 15 side and supported, and the pinion 8 is pressed against the circumferential surface of the rotating plate 5, and the support frame 18 provided on one side of the mounting frame 12 is attached to the outside of the machine frame. A rotating shaft 20 with a handle 19 attached to the outer end thereof is mounted on the rotating shaft, and the base of a fan-shaped plate 21 is mounted on the rotating shaft. Attach one end,
On the side surface of the mounting frame 12 on which the end locking part 23 of the control piece moves and slides, locking protrusions or locking grooves 24 are arranged in an arc shape at regular intervals, parallel to the fan-shaped plate 21,
The electric resistor 26 on the circuit connecting the power supply 25 and the motor 10 is arranged in an arc shape, and the base of the brush 27 that rubs it is attached to the rotating shaft 20, and attached inside the upper edge of the fan-shaped plate 21. An arcuate cam piece 28 is provided on the outer surface of the frame 12, and a stop protrusion 30 is provided at a suitable position on the inner surface of the frame 12.

Since the present invention is configured as described above, when the switch 31 on the power transmission circuit 32 is closed, the motor 10 starts, and the transmission gear 9 that meshes with the output gear 11 rotates, causing the pinion 8 on the same axis to rotate. The contacting rotating plate 5 rotates, and the base plate 2 mounted on the rotating plate via the support frame 3 rotates, similar to a conventional potter's wheel that rotates by foot operation.
Therefore, by placing pottery-making clay on a base plate, containers can be manufactured in the same way as when clay is placed on a conventional potter's wheel and the desired containers are formed. At this time, unlike conventional potter's wheels that are rotated by foot movements, there is no need to be distracted by the movements of the feet and the user can concentrate solely on the operations of the hands, making it easier to mold containers. Also, the rotational speed of the motor 10 can be changed arbitrarily by rotating the brush 27 that is in contact with the electric resistor 26, so when necessary, the rotating shaft 20 to which the brush is attached can be rotated by operating the handle 19. This allows the rotating plate 5 to be rotated at a desired rotational speed, which is extremely convenient for molding clay. The pinion 8 is pressed against the periphery of the rotating plate 5 due to the large amount of clay placed on the base plate 2.
If a slip occurs between the electric resistor and the electric resistor, rotate the handle 19 to slide the brush that contacts the electric resistor to reduce the resistance and strengthen the rotational force of the motor. Arc-shaped cam piece 2
If the mounting frame 12 to which the motor is attached is pressed at step 8, and the pinion 8 is firmly pressed against the edge of the rotating plate 5, the slip between the pinion and the rotating plate 5 will be eliminated, the rotation will be accurately transmitted, and the This allows you to mold the clay as you wish. That is, since the arcuate cam piece 28 provided on the fan-shaped plate 21 is formed as shown in FIGS. 2, 3, and 4, it presses the mounting frame 12 to the maximum extent at the position shown by the solid line. , and the position of the brush 27 that rubs against the electric circuit 26 is also the position of least resistance, so the maximum voltage is applied and the rotation of the motor 10 is strongly transmitted to the base plate 2. Next, turn the handle 19 to the right and move the fan-shaped plate 21 to the position shown by the dashed line in FIG.
The connecting surface of the arcuate cam piece 28 to the mounting frame 12 is
It moves to the lower part as similarly shown by the dashed line in FIG. 3, becomes on the outer surface side from the position shown by the solid line in FIGS. 3 and 4, and releases the pressure on the mounting frame 12. Therefore, the transmission between the pinion 8 and the rotating plate 5 is interrupted. (The tension spring 17 has the mounting frame 12 connected to the support shaft 16
The pinion 8 is supported by the rotating plate 5 in a balanced manner to prevent it from rotating outward due to its gravity.
It is only a light pressure contact. ) and brush 27
The contact position with respect to the electric resistor 26 also moves to the maximum resistance position or the remote position, and the power supply to the motor 10 is stopped. At this time, the control piece 2 attached to the fan-shaped plate 21
The locking portion 23 provided at the tip of the mounting frame 12 engages with the locking protrusion or locking groove 24 provided on the back of the mounting frame 12, so once the fan-shaped plate 21 is moved with the handle, The locking part will not move by itself unless it is rotated by the handle again, so once it is moved to the fixed position, the state at that time will be maintained.
The rotation speed of the base plate 2 is not changed. In addition, during clay molding work, if you want to cut off the rotation of the motor and remove the resistance of the pinion 8 so that the base plate 2 can rotate freely like a conventional potter's wheel, turn the handle 19 rotation shaft 20 by a large amount to create a fan shape. A stopper 2 in which a stop protrusion 30 provided on a plate 21 is protruded from one end of the outer surface of a mounting frame 12.
9, the arcuate cam piece 28
Since the pressure on the mounting frame 12 is released, the pinion 8 is removed from contact with the rotating plate 5, and the edge of the rotating plate 5 with the pinion 8 is severed, so that the rotating plate 5 is also connected to this. The base plate 2 is also free, and the worker can only move the base plate 2 manually without using power.
Since the machine can be rotated, the base plate can be freed at any time and molding work can be carried out as desired.

As described above, the present invention allows the base plate 2 to be rotated by power at a desired speed, and does not require foot operations unlike the conventional method, making it easy for anyone to perform clay molding operations. As mentioned above, the base plate can be freely rotated manually and can be used like a conventional foot-wheel type potter's wheel, so the rotation operation of the potter's wheel is far superior to the foot-wheel type, making it suitable for use by pottery enthusiasts. suitable, and its practical effects are extremely large.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a perspective view of the overall appearance, Fig. 2 is a sectional view, Fig. 3 is a plan view when the machine frame is crossed and the base plate is excluded, and Fig. 4 The figure is a front view of the main parts, and FIG. 5 is a wiring diagram. 1... Machine frame, 2... Base plate, 3... Support frame, 4... Vertical shaft,
5... Rotating plate, 8... Pinion, 10... Motor, 1
2...Mounting frame, 13...Sleeve piece, 15...Fixed support frame, 17
...Tension spring, 18... Support frame, 19... Handle, 20...
Rotating shaft, 21... sector plate, 22... control piece, 23... tip locking part, 24... locking groove, 26... electric resistor, 2
7... Brush, 28... Arc-shaped cam piece, 29... Stopper, 30... Stop protrusion piece.

Claims (1)

[Scope of utility model registration request] A rotatably mounted base plate is installed on the top of the machine frame.
A pinion on an intermediate shaft that is transmitted in relation to the motor shaft is brought into contact with the periphery of a rotary plate that is integrally equipped with the base plate and rotates, and the mounting frame in which the motor and the intermediate shaft are arranged is mounted on the motor. The lower end of the sleeve piece provided near the center of the frame is pivotally supported on the fixed support frame, and
The pinion is pulled toward the center of the machine frame by a tension spring so that it comes into pressure contact with the periphery of the rotating plate, and a fan-shaped plate with its lower end mounted on the rotating shaft is mounted parallel to the outer surface of the mounting frame. A control piece is provided on the inner side of the fan-shaped plate to press against the outer surface of the mounting frame, and an arc-shaped cam piece that contacts the outer surface of the mounting frame is provided on the inner side of the upper end of the fan-shaped plate, and a control piece that is in contact with the outer surface of the mounting frame A stop protrusion that collides with a stopper protruding at a position is provided, a rubbing brush is provided on the outer surface of the fan-shaped plate, and an electric resistor on which the rubbing brush slides is fixed to the outer surface of the fan-shaped plate. , the electrical resistor, the rubbing brush, and the motor are connected to a power source to provide an electric circuit that can freely adjust the voltage, and a handle is attached to the outer end of the rotating shaft that projects outward from the machine frame. A potter's wheel for pottery production featuring: