JPS591654Y2 - Groove cutter - Google Patents

Description

[Detailed description of the invention] This invention is mainly used for the adhesion of the adhering butt parts between the floor coverings when laying flooring materials such as vinyl chloride tiles on the floor surfaces of government offices, hospitals, schools, etc. Regarding groove cutting acid groups that are formed into grooves with a V-shaped or U-shaped cross section that will serve as welding grooves at the joints of so-called floor covering materials, the purpose is to remove adhesive abutments between floor covering materials. In addition to being able to accurately and quickly cut a groove by imitating the groove, the welding rod can be pushed into the cut groove moderately, and unnecessary parts of the welding rod that protrude from the surface of the flooring material can also be scraped off when pushing. It provides an easy-to-use grooving performance.

Conventionally, when cutting grooves in the adhesion abutment of floor covering materials, a groove cutter shaped like a carving blade is used to cut the grooves without coming off the adhesion abutment. Therefore, it is extremely complicated and time-consuming work that requires great care and great force is applied to scrape the hard flooring material, and it also requires a certain level of skill. Otherwise, the grooves will be curved, the depth will be inconsistent, and the appearance will be unsightly.

In addition, the welding rod is pushed into the groove after cutting, and the unnecessary part of the welding rod that protrudes upward from the surface of the flooring material is scraped off with another cutter, and then welding is performed. The joints are joined and laid, but if the groove is curved or the depth is not constant, it becomes difficult to insert the welding rod, and the insertion volume of the welding rod varies due to the difference in depth. This may cause the inconvenience that the finished appearance is not beautiful.

The present invention aims to provide a grooving feature that eliminates all of the drawbacks of the prior art.Next, the present invention will be described in detail with reference to drawings showing one embodiment thereof.

The structure of the present invention is that flat diamond-shaped guides 4 and 5 are attached to the front and rear ends of the left side of the main body 1, which is rectangular in plan, via mounting rods 2 and 3, respectively, and a sharp lead portion at the lower end thereof. 4', 5'
is housed in a form that protrudes downward from the lower surface of the main body 1, and the holder 6 is fixed at a substantially central position between the guides 4 and 5 on the left side surface of the main body 1, and the mounting groove 7 of the holder 6 is fixed. The groove cutting blade 8 whose lower end has a V-shaped outer shape is attached to both guides 4 whose lower ends are connected to each other.
, 5 are located on the line connecting the board parts 4' and 5', and
It has a configuration in which it is inserted and fixed in a form that protrudes downward from the bottom surface.

Reference numeral 9 denotes an operating grip part erected on the main body 1, and 10 a groove-shaped pressing recess cut along the longitudinal direction at the center position of the lower surface of the main body 1 in the lateral direction. Alternatively, a welding rod is pushed into a groove 13' for a welding groove cut in the adhesive abutment part 12 of the flooring material 11 made of rubber or the like.

Further, 13 is a notch formed at the front end of the pressing recess 10 in the main body 1 for introducing the welding rod into the pressing recess 10;
Reference numeral 4 designates a scraping blade that is attached to the rear end of the main body 1 so that its lower end is at the same position as the lower surface of the main body 1 in the horizontal direction.

When using the grooving feature of the present invention configured as described above, each lead portion 4', 5' of both guides 4, 5 is inserted into the adhesion abutment part 12 of the flooring material 11, and the main body 1 is covered with a floor. After placing it on the upper surface of the material 11, grip the grip part 9 and press it forward to slide the lower surface of the main body 1 onto the flooring material 11, and the main body 1 will move between the guides 4,
5, it moves along the adhesive abutting portion 12, and a groove 13' having a square cross section is cut in the adhesive abutting portion 12 by the groove cutting blade 8.

Since the concave part 10 and the scraping blade 14 are integrally provided on the main cloud, after the groove 13' is formed, the travel guide 13'
Insert a welding rod into the holder, loosen the screws fixing both guides 4, 5 and grooving blade 8, so that the lower ends of both guides 4, 5 and grooving blade 8 are at least below the bottom surface of main body 1. Push it up until it is in the upper position, then tighten the screw to fix it.
When the welding rod is inserted into the recess 10 from the notch 13 and the main body 1 is again slid onto the surface of the flooring material 11, the welding rod is pushed into the groove 13' by the recess 10 and the flooring material 11
Since the unnecessary portion of the welding rod protruding above the surface of the welding rod is cut off by the scraping blade 14, welding work can be performed immediately thereafter.

As mentioned above, according to the grooving performance of the present invention, both guides 4 and 5
By inserting the grooving blade 8 into the adhesion abutment part 12 of the flooring material 11, the groove cutting blade 8 located on the line connecting each lead part 4', 5' of both guides 4, 5 can accurately make an adhesion abutment. It fits into the joint part 12 and does not come off from the adhesive joint part 12 during movement.
The depth of the groove 13' formed is always constant, and even beginners can easily and quickly cut the groove 13' which is accurate and has a beautiful appearance. Since the inclination angle is constant and the operation of sliding the main body 1 is performed, a very large force is not required for the operation 1.

In addition, since it is equipped with a recess for pushing the welding rod into the groove and a scraping blade for cutting off unnecessary parts of the welding rod, it is possible to create a groove that matches the bonding area of the flooring material and has a constant depth. This, together with the formation of a welding rod, allows the welding rod to be pushed in and scraped off with great accuracy, making the welding work easier and providing a beautiful finished appearance.

[Brief explanation of the drawing]

The drawings show one embodiment of the grooving feature of the present invention, with FIG. 11 being a perspective view showing a usage pattern, FIG. 2 being a front view, and FIG. 3 being a bottom view. 1...Main body, 4, 5...Guide, 8.
...Groove cutting blade, 11...Floor covering material, 12.
...Adhesive abutment part, 13'...Groove, 10.
... recess, 13 ... notch, 14 ...
...scraping blade.

Claims (1)

[Scope of utility model registration request] In the process of cutting a groove in the adhesion abutment part of a flooring material made of synthetic resin, rubber, etc., the adhesion abutment part is cut in a straight line position in the sliding direction of the main body that slides on the flooring material. A plurality of flat guides and a grooving blade which are slidably fitted into the joint are each mounted in a vertically movable manner to the extent that they can protrude downward from the lower surface of the main body, and A groove-shaped recess is formed for pushing the welding rod into the groove in the sliding direction, a notch for introducing the welding rod is formed at the front end of the recess in the sliding direction, and a rear end of the recess is formed. A grooving device characterized in that a scraping blade is attached to the body so that the cutting edge of the lower end thereof is in the same position as the plane of the main body.