JPS6345281Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a dowel cutting machine used in a special tensioning method for wooden flooring materials such as flooring boards used in gymnasiums, martial arts halls, etc.

<Conventional technology> As a special method for installing wooden flooring materials, dowel holes are drilled on the surface of the flooring material, nails, screws, etc. are driven through the dowel holes to fix the flooring material to the base material, and then the wooden floor material is placed in the dowel holes. There is a method of embedding dowels to provide gaps for the heads of the nails, screws, etc. mentioned above.

In this case, as a means of embedding the dowel in the dowel hole, there is a means of preparing a long dowel, inserting the lower end of the long dowel into the dowel hole, and then cutting the dowel immediately above the inserted dowel.

In this case, conventionally, the dowels were cut using a handsaw.

This has the drawback of requiring labor and damaging the floor.

<Problems to be solved by the invention> In this invention, a saw driven by a motor is placed close to the floor via a frame with wheels, and the saw is moved along the floor to cut the dowels. The purpose of the present invention is to provide a floor dowel cutting machine that reduces labor and does not damage the floor surface even by an amateur.

<Means for Solving the Problems> In order to solve the above object, the present invention is constructed as follows.

That is, a motor is placed on the top of a frame supported horizontally by wheels, and a saw connected to the output shaft of the motor is placed horizontally directly below the frame, and its front blade is placed in front of the frame. The saw blade is provided with an adjustment mechanism that protrudes from the frame and adjusts the front blade of the saw to be close to the floor surface, and the frame is provided with a handle that protrudes upward from the rear thereof.

<Operation> Since the present invention has the above-mentioned configuration, first operate the adjustment mechanism to place the front blade of the saw at a predetermined close position to the floor surface, then start the motor to drive the saw. The front part of the saw operates in a set proximal position to the floor in front of the frame.

In this state, if you operate the handle and move the floor dowel cutting machine forward toward the dowel standing on the floor,
The front blade of the saw contacts the dowel and cuts it just above the floor.

<Example> In the drawings, Fig. 1 is a perspective view of the floor dowel cutting machine according to the present invention, Fig. 2 is an enlarged side view with the motor cover removed, and Fig. 3 is a plan view with the motor cover removed. .

Reference numeral 1 denotes a rectangular frame made of sheet metal, and this frame 1 is horizontally supported by wheels 2 attached to its four corners.

A motor 3 is fixed upside down on the upper surface of the frame 1. Then, the output shaft 3a of the motor 3 is made to protrude downward from the frame 1, and a disk-shaped saw 4 having a large number of blades on the outer periphery is horizontally arranged and fixed to the lower end of the output shaft 3a.

The front blade 4a of the saw 4 projects slightly forward with respect to the front of the frame 1.

A handle 5 made of a pipe that stands upward is fixed to the rear part of the frame 1, and a switch 6 for turning on and off power to the motor 3 is attached to the upper part of the handle 5.

Further, a support 7 is erected and fixed upward at the front right corner of the frame 1, and a pressing body 8 made of a leaf spring is supported on the support 7.

As shown in FIG. 3, the pressing body 8 is located above the front portion 4a of the saw 4, and extends from the right end of the front portion of the frame 1 toward the front left end in a curved manner.

Each of the aforementioned wheels 2 is connected to the frame 1 via an adjustment mechanism 9.

That is, as shown in FIG. 2, a pair of bolts 9a and 9b are arrayed and fixed in the front-rear direction on the upper surface of the frame 1, and an arm 9c is arranged to extend in the front-rear direction from the bolts 9a and 9b. One end is loosely fitted, and the arm 9c is fastened with a pair of upper and lower nuts 9d and 9e screwed onto bolts 9a and 9b, and the arm 9c
A wheel 2 is suspended from the other end.

Note that 10 is a motor cover that surrounds the outer periphery of the motor 3 and locks its lower edge to the frame 1.

Next, the operation of the above embodiment will be explained.

First, by operating the upper and lower nuts 9d and 9e of the adjustment mechanism 9 to vertically adjust the arm 9c,
The degree of proximity of the frame 1 and thus the saw 4 to the floor surface A is adjusted.

In this example, by operating the upper and lower nuts 9d and 9e, the frame 1 is tilted forward and downward so that the front blade 4a of the saw 4 is closer to the floor surface A than the rear part thereof.

Next, when the switch 6 is turned on and the motor 3 is started, the saw 4 is driven to rotate.

In this state, if the handle 5 is operated and moved forward toward the dowel set up on the floor, the front blade 4a of the saw 4 will come into contact with the dowel, and the dowel will be positioned directly above the floor. It will be cut at.

Immediately before the dowel is cut, the pressing body 8 comes into contact with the upper part of the dowel and is pre-compressed, and when the dowel is cut, the dowel is pushed against the frame 1 by the elastic force of the pressing body 8. It will be eliminated towards the front right.

In the same manner, as the main body moves forward, the dowels erected on the floor are sequentially cut and removed.

<Effects of the invention> As is clear from the above explanation, according to the configuration of the present invention, even an amateur can cut dowels set up on the floor without damaging the floor, and moreover, the dowels can be cut using a pressing body. It has the unique effect of removing the dowels outward without any human intervention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an enlarged side view with the motor cover removed, and FIG. 3 is a plan view with the motor cover removed. 1-frame, 2-wheels, 3-motor, 3a-
Output shaft, 4-saw, 4a-front blade, 5-handle,
6-Switch, 7-Strut, 8-Pushing body, 9-Adjustment mechanism, A-Floor surface, E-Dowel.

Claims (1)

[Scope of utility model registration request] A motor is placed on the top of a frame supported horizontally by wheels, and a saw connected to the output shaft of the motor is placed horizontally directly below the frame, and its front blade is placed in front of the frame. In the floor dowel cutting machine, which is provided with an adjustment mechanism that protrudes and adjusts the front blade of the saw to be close to the floor surface, the frame is provided with a pressing body that elastically deforms in the front-rear direction above the front part of the frame. Floor dowel cutting machine.