JPH01201225A - Floor surface grinder - Google Patents

Abstract

PURPOSE:To prevent one side from embossing, to prevent a grinding effect from decreasing and to make unnecessary a labor for a handle operation by providing a caster for preventing an emboss at the side opposite to the side to generate the emboss by the rotation of a brush. CONSTITUTION:The upper edge of a supporting shaft 11 is protruded onto the upper side of an inner direction flange 13 and a flange 15 for preventing the omission of the same supporting shaft 11 is fitted at a protruding edge with a screw 15'. Further, a caster 16 for preventing an emboss, which can be freely deflected, at the lower edge of the supporting shaft 11, and the position of the caster 16 for preventing the emboss is determined by the selection of the fitting position of an arm 7 so as to be the side opposite to the embossing side to occur due to the rotation of a brush 5. Thus, the labor is made unnecessary for the handle operation and further, the inconvenience to decrease the grinding effect due to the emboss of the brush 5 does not occur.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floor polishing machine that efficiently polishes a floor surface by rotating a brush that contacts the floor surface.

[Conventional technology]

A floor surface characterized in that the weight is distributed on both sides of the handle shaft axis and the longitudinal axis passing through the brush rotation center, so that the weight is heavier on the side where the brush rotates from the front to the rear and the floating part occurs. A polishing machine is known from Japanese Patent Publication No. 55-40252.

[Problem that the invention seeks to solve]

A floor polishing machine in which the weight distribution between the side where floating scratches occur and the side opposite to the said side was made was disclosed in the above-mentioned Japanese Patent Publication No. 55-4.
As explained in Publication No. 0252, there are defects such as (one side floats up and the polishing effect decreases, while the floatation is prevented), and a great deal of effort is required for the handle operation. was there.

In an attempt to eliminate such inconvenience, the
The inventor of No. 252 has developed a floor polishing machine that performs polishing by rotating a brush attached to the tip of the handle shaft using a motor, and the inventor has developed a method for controlling the weight distribution around the center of rotation of the brush of the floor polishing machine. They have devised a brush that is characterized by straight ends on both sides, and have implemented it by mounting a weight or by installing a motor eccentrically with respect to the center of the brush.

However, the weight-equipped type does not rotate the brush, but simply moves it to another location (i.e., stores it), which requires the added weight of the weight, which is a waste of effort. Moreover, in the case where the motor is arranged eccentrically, it tilts when the brush is not rotated, resulting in an unbalanced and unsightly appearance.

[Means to resolve the problem]

The present invention provides a new floor polishing machine that eliminates the above-mentioned defects such as unreasonableness and inconvenience by providing a caster for preventing floating on the side opposite to the side where floating occurs due to the rotation of the brush. The purpose is to

〔Example〕

The embodiment of the present application shown in FIGS. 4 to 6 has a nozzle shaft (
A support stand (2) is attached to the tip of the support stand (2), a cover (3) is attached to the tip of this support stand (2), and a motor (4) is mounted on the center of the cover (3). 3) The brush (5) is connected to the motor (4) K.
The row is stored in a rotating state and can be freely removed, so that the weight distribution between the side on which floating occurs and the side opposite to that side is equal, and the handle shaft (1) is adjusted to its upright angle according to the work. The main body of the floor polishing machine (U) is configured such that it can be freely adjusted, and the arm (7) is attached to the support stand (2) with screws (7)' K. A bearing main pipe (8) is integrally provided in the direction of the bearing main pipe (8).
The bearing auxiliary pipe (9) is inserted into the bearing auxiliary pipe (9) so that its vertical position can be changed, and the bearing main pipe (8) is equipped with a tightening screw Ql for fixing the bearing auxiliary pipe (9). Insert the support shaft υ into the support shaft so that it can move up and down, make the upper half of this support shaft narrower, add a stepped part a in the middle of the support shaft I, and insert the bearing auxiliary pipe (9
) are respectively provided with seven inward flange 13, and a cushion spring I is installed between the stepped portion υ and the inward seven flange a3 on the support axis αυ, so that both upper and lower ends of the cushion spring α4 are inward seven flange. Wrap the lower surface and step part of 3 in a state where it is pressed, and also turn the upper end of the support shaft ←υ inward!!7.
The position of the caster for preventing falling is to remove the fall prevention rim (install the US with the screw (Is'), and then attach the caster wing for preventing floating 9, which can be turned freely, to the lower end of the spindle return υ, and this floating). is a brush (5
The installation position of the arm (7) was determined so that it would be on the opposite side to the levitation #)ll caused by the rotation of the arm (7).

The present invention can be implemented with a configuration that does not have a cushion spring, a configuration that uses a hydraulic cylinder or an air cylinder in place of the cushion spring, or a configuration that has two or more brushes.

[For production]

The floor polishing machine main body (A), which has an equal weight distribution between the side where levitation occurs and the side opposite to the side where levitation occurs, is attached to a caster for preventing levitation, which is attached via an arm (7), a cushion spring I, etc. (If you do not have a brush and polish the floor surface in the direction of arrow (6) shown in Figure 1, the brush (
5) is tilted and the bottom surface rises from the floor surface, and at the same time, the handle shaft (1) K swings in the direction shown by the arrow (6)' in FIGS. 1 and 3.

That is, when the brush (5) is in contact with the floor and rotates in the direction shown by the arrow (6) in Figure 1, the rotational force of the brush (5) causes the brush (5) to rotate around the center of rotation on the floor. A rotational force is generated in the main body of the surface polishing machine in the same direction as the brush (5).

A nine-grip is held at the upper end of the handle shaft (1), and when the rotation of the floor polishing machine body (A) is prevented through the upper end of the handle shaft (1), the floor polishing machine body (I) is ) is applied to the left half of Figure 1, with the front and rear axes passing through the center of rotation of the brush (5) facing each other.

Therefore, the left half receiving the rotational force is pushed down, and a rotational force acts on the handle shaft (1) in a direction centered on the axis as shown by the arrow (6)' in FIG. 3.

As mentioned above, the rotational force of the floor polishing machine body (A) is the left half K in Figure 1, the handle shaft (1), and the arrow (6) in Figure 3.
When a rotational force is applied in the direction indicated by ', the surface of the floor polishing machine (on the main body) tilts to the left as shown in Figure 2, and as a result, the bottom of the brush (5) tilts as shown in Figure 2. It will tilt and the right side will rise.

In addition, the handle shaft (1) K is swung in the direction shown by the arrow (6)' in Figures 1 and 3 due to the inclination of the floor polishing machine body (A) and the rotational force around the shaft center. will occur.

For this reason, there is a large resistance to operating the polishing machine body (a), and the brush (5) must be held so that its entire surface is in contact with the floor at all times, which requires a lot of effort to operate. Furthermore, problems such as a reduction in the polishing effect occur due to the floating of the brush (5).

Therefore, in the present invention, a floating prevention caster (2) is attached to the floor surface polishing machine main body (A) on the side opposite to the side where floating particles occur, and this caster uQ is used to move the left half of the floor polishing machine shown in FIG. receives the force of being pushed down, and the main body of the floor polishing machine (a) tilts to the left due to the rotational force of the brush (5).
) to prevent the right side from floating up.

That is, the present invention does not have a weight-mounted motor and an eccentrically arranged motor as in the invention disclosed in Japanese Patent Publication No. 55-40252, but instead sets the side where levitation occurs and the opposite side. The floor polishing machine main body (P), which has an equal weight distribution with the sides, is designed to prevent the right side of the siplash (5) tilted to the left from floating due to the rotational force of the brush (5).

〔Effect of the invention〕

The present invention provides a caster for preventing flotation on the side opposite to the side where buffing occurs when the brush rotates, thereby eliminating the need for a great deal of effort to operate the handle when one side floats and the polishing effect is reduced. This is an excellent method that completely achieves the intended purpose and eliminates the aforementioned defects experienced by conventional weight-mounted or eccentrically mounted motors. It is effective.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a conventional floor polishing machine, FIG. 2 is a front view thereof, FIG. 3 is a perspective view thereof, FIG. 4 is a perspective view showing a floor polishing machine of the present invention, and FIG. is the same plan view, and Fig. 6 is Fig. 6A-
It is a sectional view along the A line. (1)...Handle shaft, (2)...Support stand, (3)
...cover, (4) ...motor, (5) ...brush, (() ...body, (7) ...arm, (7)'
... Screw, (8) ... Bearing main pipe, (9) ... Bearing auxiliary pipe, (11 ... Tightening screw, aυ ... Support shaft, a2
:...Stepped part, a3...Inward flange, α extrusion...Cushion spring, a9...Tsuba, α-gu'...Screw, QG
...Casters. Patent applicant: Japan Patent Electric Co., Ltd. (2)...Arm (5 pieces...Brush (4 pieces)
・Motor G9...Casters Figure 5 tll・Handle shaft

Claims (1)

[Claims] In a floor polishing machine, the brush installed at the tip of the handle shaft is rotated by a motor to perform polishing, and the weight distribution is equal between the side where floating occurs and the side opposite to that side. A floor polishing machine characterized by having casters for preventing floatation on the side opposite to the side where friction occurs.