JPS6316378Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electric floor polisher.

Today, electric floor polishing machines are used for a wide range of purposes, not only for cleaning and waxing building floors, but also for removing stains from carpets, etc., but each of these machines has its own dedicated electric floor polishing machine. It is done using a machine. The reason for this is that cleaning, waxing, and polishing of carpet and tile surfaces are carried out at 50 r.p.m.
Since the rotational speeds vary greatly, such as 250rpm, 400rpm, 550rpm, etc., performing such speed changes with a single electric floor polisher would complicate the configuration of the speed reduction mechanism. This is because the device becomes larger and heavier, and the operability of the device itself is impaired.

In view of the above points, the present invention has been developed to allow a single electric floor polishing machine to perform tasks ranging from cleaning carpets to polishing the floor surface. By replacing intermediate gears, etc. as appropriate, and making the drive case removable, it is possible to obtain rotation speeds ranging from 50 r.p.m. to 600 r.p.m. from a single electric floor polisher. The purpose is to allow work to be carried out efficiently at the required number of rotations by replacing them as appropriate depending on the application.

An example of implementing the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal sectional view of the main parts of the polisher, in which 1 is a frame body, 2 is an electric motor, and is fixed to a base plate 4 with the motor shaft 3 facing downward. The base plate 4 is formed into an inverted dish shape and is fixed to the frame body 1 using bolts and nuts 5, 5', and has a through hole 6 bored in the center so that the motor shaft 3 can be inserted into the base plate 4. The tip protrudes and a master gear 7 is detachably fixed to the tip using a pin 8. Further, internal teeth 9 are carved on the dish-shaped inner circumferential surface of the base plate.

Reference numeral 10 denotes a drive case for forming the unit, in which a rotary plate 11 is rotatably supported in the center via a bearing 12, and radially arranged on two, three or four sides of the plate. Convex groove 13 in the direction
a, 13b, 13c... (four sides in the illustrated example), a support rod P is provided to slide in each groove, and an intermediate gear 14 is pivotally supported on the upper part of each support rod P. Each intermediate gear 14 is connected to the motor shaft 3 inwardly.
The number of teeth is such that the master gear 7 at the tip meshes with the internal teeth 9 of the base plate 4 on the outside.

At this time, the number of rotations of the rotating plate 12 is appropriately changed by changing the number of teeth of the main gear 7 and the intermediate gear 14. That is, the number of teeth of the main gear 7 is made small and the number of teeth of the intermediate gear 14 is changed as appropriate. When the number of teeth of the main gear 7 is made large and the number of teeth of the intermediate gear 14 is made small, on the other hand, when the number of teeth of the main gear 7 is made large, the number of teeth of the intermediate gear 14 is made small. The rotating plate 12 rotates relatively quickly, and for this purpose, the main gear 7 and the intermediate gear 14 with different numbers of teeth are prepared, and the main gear 7 is replaced by removing the pin 8, and the intermediate gear 7 is replaced with a pin 8. 14 are grooves 13a, 13b, 13
c, 13d and replace it with another one.

For the above replacement work, the peripheral flange S of the drive case 10 is
This is done by making the base plate 4 removable by using bolts and screws 15 or by using a hook key (not shown).

Reference numeral 16 denotes a brush mounting metal fitting, which is fixed to the lower center of the rotary plate 11 having the above structure using a bolt screw 17.
During actual use, the brush 18 is attached like a chain point. In addition, in the drawing, 19 is the motor cover, 20 is the capacitor, 2
1 is an electric wire cord, and 22 is a handle.

Based on the above, the present invention has the main gear 7 with the required rotation speed from carpet to wax polishing with one electric floor polishing machine.
Since it can be easily obtained by preparing several intermediate gears 14 and replacing them as appropriate, it is easy to transport, does not take up a large amount of storage space, and reduces costs and improves work efficiency. It is a great contribution to make.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the main parts of the electric floor polisher. 1...Frame body, 2...Electric motor, 3
... Motor shaft, 4 ... Base plate, 7 ... Main gear, 9
...Internal teeth, 10...Drive case, 11...Rotating plate, 14...Intermediate gear, 16...Brush mounting bracket, 19...Motor cover, 22...Handle.

Claims (1)

[Scope of utility model registration request] An inverted dish-shaped base plate 4 that supports the electric motor 2 is fixed to the frame body 1 downward using bolts and nuts, and internal teeth 9 are carved on the dish-shaped inner peripheral surface of the base plate 4, and internal teeth 9 are carved inside the center of the base plate 4. A through hole 6 is bored in the hole 6 to allow the motor shaft to protrude, and the main gear 7 is removably attached to the tip of the shaft.
The intermediate gear 14 that meshes with the internal teeth 9 can be slid on the upper surface of the rotary plate 11 rotatably supported within the drive case 10 through grooves provided in two, three, or four radial directions. In addition, the drive case having the above structure can be attached to and detached from the circumferential surface of the base plate 4 as appropriate, and a mounting bracket for attaching the brush is provided at the lower center of the rotary plate 11. An electric floor polisher featuring: