JPH044447Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a waterproofing material stripping machine for peeling off old waterproofing materials when renewing or repairing waterproofing materials applied to the roofs of buildings, etc.

(Conventional technology) Conventionally, most of the waterproofing materials that have been widely used are asphalt waterproofing materials, and in Japan, when updating or renovating them, the old waterproofing material is usually peeled off from the roof concrete slab surface with a scraper. ing.

In foreign countries, documents have been found in which the cutting edge of a kerenbo was attached to the tip of a wheelbarrow.

(Problems that the invention attempts to solve) These had the following drawbacks. In other words, when the asphalt waterproofing material is as low as 5 degrees Celsius or less in winter, the asphalt becomes hard and brittle, so it is possible to peel off the old waterproofing material using a scraping stick. When the temperature rises to 5°C or higher, such as in spring, autumn, and summer, the viscosity of asphalt increases, making it extremely difficult to remove the old waterproofing material and requiring a huge amount of labor and time. Therefore, the cost of repairing the waterproof material becomes very high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a waterproof material peeling machine that can solve the above-mentioned conventional problems and efficiently peel and remove waterproof materials.

(Means for solving the problem) In order to achieve the above object, the waterproof material peeling machine of the present invention has rectangular through holes 3 formed at appropriate intervals at the front end of the main body of the two-wheeled handcart 1. A plurality of plow-shaped blades 2 are placed and drilled in the roof concrete slab surface 5, and when the blade edge 4 contacts the roof concrete slab surface 5, the blade surface forms an angle of 15 degrees to 30 degrees with respect to the concrete slab surface. , is characterized in that a heating device equipped with a burner 7 that emits flame toward the back surface of the spade-shaped blade 2 is disposed behind the blade 2.

(Function) In order to peel off the old waterproof material 8 applied to the roof of a building, etc., the present invention uses a road cutter or the like to cut the old waterproof material 8 at intervals slightly wider than the width of the plow-shaped blade 2 in advance. A linear cut is made from above to reach the roof concrete slab surface 5, and then a flame 21 of propane gas or the like is applied from the gas burner 7 to the plow-shaped blade 2 for peeling off the old waterproof material 8 and the plow-shaped blade 2. Place the cutting edge 4 between the old waterproof material 8 and the roof concrete slab surface 5 by heating the old waterproof material 8 through the rectangular through hole 3 provided, and raise the temperature. By pushing step 1 forward, the old waterproofing material 8 can be peeled off from the roof concrete slab surface.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Figure 1 is an overall perspective view, and Figure 2 is a side view showing the state in use.A thick support plate 9 is attached by welding or the like to the center of frames 6, 6, which are arranged in parallel at intervals of 30 cm to 50 cm. , the support plate 9 is connected to the frame 6,
Wheels 10, 1 are attached to the side surface bent downward on the outside of 6.
A two-wheeled handcart 1 has a plurality of rectangular through holes spaced at appropriate intervals at the front end of the two-wheeled handcart 1, which is constructed by providing a handle 11, 11 by slightly curving one end of the frames 6, 6 downward and attaching handles 11, 11. 3, 3... is provided, and when the cutting edge 4 comes into contact with the roof concrete slab surface 5, when it comes into contact with the roof concrete slab surface 5, the roof concrete slab surface 5
The plow-shaped blade 2 is attached to the frames 6, 6 so that the angle between the blade surface and the blade surface is 15 degrees to 30 degrees. Furthermore, flames 21, 2 are directed toward the back side of the spade-shaped blade 2.
Gas burners 7, 7 so that 1 reaches the position
is connected to a gas pipe 12 whose tip is divided into two parts, and the gas pipe 12 is connected to a small plate 13 that protrudes downward from the center of the front side of the support plate 9 provided at the center of the two-wheeled handcart 1. The support plate 9 is supported by holes 14 provided in the support plate 9.
It is bent at the rear end, then bent again at the frame 6 on the right-hand side, provided along the frame 6, and fixed to the frame 6 with a plurality of fasteners 15, 15, . . . . The fixed gas pipe 12 is equipped with an adjustment valve 16 just in front of the handle 11 on the right hand side, and a gas hose 17 is connected at the handle 11.
It is connected to a propane gas cylinder 20 loaded on a cylinder transport vehicle 19 via a regulator 18.

By the way, when the asphalt in which the asphalt waterproofing material is laminated and bonded is heated to a temperature close to its softening point, the viscosity suddenly decreases and it becomes fluid.
The physical properties of this asphalt are specified in JIS-K-2207 as an asphalt for waterproofing work, but there are three types of asphalt for waterproofing work that are generally used: a softening point of 100°C or higher, and a penetration of 20 to 20°C. 40
belongs to. Based on past experience, it is known that if this asphalt is used for waterproofing work for more than 10 years, it will harden to a softening point of around 130°C and a penetration level of around 10. Therefore, when removing the old waterproof material 8, if the old waterproof material 8 is heated to a temperature of 130° C. or higher, the adhesion force to the roof concrete slab surface 5 will be reduced, so that it can be easily removed. In this case, the plow-shaped blade 2 of the present invention
When the asphalt is cold, the asphalt, which has been heated and its viscosity has decreased, comes into contact with the plow-shaped blade 2, the temperature decreases, the viscosity increases again, and it adheres to the entire surface of the plow-shaped blade 2. However, the present invention uses this plow-shaped blade 2.
is heated from the back side with gas burners 7, 7, and a plurality of rectangular holes 3, 3... are provided in the spade-shaped blade 2, so that the flame 21 directly hits the old waterproof material 8 and heats it. Since it is structured so that it can be removed, there is no such inconvenience and it can be removed smoothly. The heating temperature and the length of the flame 21 can be adjusted by an adjustment valve 16 provided on the gas pipe 12 and a regulator 18 provided on the propane gas cylinder 20. Furthermore, the cutting edge 4
When the blade contacts the roof concrete slab surface 5, the angle of the blade surface with respect to the roof concrete slab surface 5 is
Since it is attached at an angle of 15 to 30 degrees, that is, the angle at which it is easiest to peel off the waterproof material layer by pushing the cutting edge forward, the old waterproof material 8 can be peeled off extremely efficiently.

(Effects of the invention) By using the waterproofing material stripping machine of the present invention instead of the conventional scraping stick, old waterproofing material can be efficiently stripped off from the roof concrete slab surface in a short time. Moreover, the structure of this invention is simple,
Moreover, it can be manufactured at low cost and is extremely economical.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the present invention, and FIG. 2 is a side view showing the present invention in use. 1 is a two-wheeled handcart, 2 is a plow-shaped blade, 3 is a rectangular hole, 4 is a cutting edge, 5 is a roof concrete slab surface, 6 is a frame, 7 is a gas burner, 8 is an old waterproof material, 9 is a support board, 10 is a wheel, 11 is a handle, 12 is a gas pipe, 13 is a small plate, 14 is a hole, 15
is a fastener, 16 is an adjustment valve, 17 is a gas hose, 18 is a regulator, 19 is a cylinder carrier, 20 is a propane gas cylinder, and 21 is a flame.

Claims (1)

[Scope of utility model registration request] At the tip of the front part of the two-wheeled handcart 1, a plow-shaped blade 2 with a plurality of rectangular through holes 3 bored at appropriate intervals is inserted into the concrete when the blade edge 4 touches the roof concrete slab surface 5. A heating device is attached to the blade 2 so that the blade surface forms an angle of 15 degrees to 30 degrees with respect to the slab surface, and is equipped with a burner 7 that emits a flame toward the back surface of the spade-shaped blade 2. A waterproof material peeling machine located at the rear.