JP3170400U - Heating device for paving tools - Google Patents

Abstract

The present invention provides a heating apparatus for easily and reliably heating a paving tool without peeling off with light oil and peeling asphalt adhering to the paving tool. SOLUTION: A casing 10 and two hollow pipes 14 rotatably attached to casing side surfaces 11A and 11B are provided, and the two hollow pipes 14 are arranged so that the vertical position and the horizontal position are different. Each of the hollow pipes 14 ejects heated air into the casing interior 10i through an opening formed in the surface, and ejects heated air by rotating with respect to the casing side surfaces 11A and 11B. It is configured to change the direction. [Selection] Figure 1

Description

  The present invention relates to a technique for heating a paving tool to prevent the asphalt from adhering to the paving tool and removing the asphalt adhering to the paving tool.

When paving roads, paving tools for assembling and leveling asphalt mixture (a mixture of asphalt, aggregate, sand, etc.) are used. Such pavement tools generally include scoops and rakes.
By the way, asphalt compound material tends to adhere to a pavement tool by the viscosity of asphalt which is a composition.
In order to prevent such adhesion, a method has been adopted in which light oil capable of dissolving asphalt is put in a container such as a pail can, and a pavement tool such as a scoop is immersed in the light oil in the container. .

However, when such a method is carried out, when the scoop is pulled up from the pail can, light oil is dripped from the scoop and contaminates the periphery of the pail can, so the environment at the work site cannot be kept clean.
In addition, it is not preferable in terms of pavement quality that light oil having an action of dissolving asphalt is mixed with the asphalt mixture when asphalt mixture is placed and leveled with a scoop dipped in light oil.

  The present invention has been proposed in view of the above-mentioned problems of the prior art, and it is not necessary to clean the pavement tool with light oil, and the asphalt mixture adhering to the pavement tool can be easily and reliably removed. It aims at providing the heating device for paving tools.

  The heating device (100) for a paving tool of the present invention includes a casing (box body 10) and two hollow pipes (14) rotatably attached to the casing side surfaces (11A and 11B). The pipes (14) are arranged so that the vertical position and the horizontal position are different, and each hollow pipe (14) is heated inside the casing (10i) through an opening (14a) formed on the surface. The air is ejected and rotated with respect to the casing side surfaces (11A, 11B) to change the ejection direction of the heated air.

  In the present invention, a heating source (for example, a gas burner 18) is connected to one end of the hollow pipe (14), and the heating source (for example, the gas burner 18) is heated through a flexible hose (19). It is connected to a storage device (for example, gas cylinder 20) for the fuel for fuel (fuel gas or liquid fuel), and the heating source (18) includes a control mechanism (for example, regulator RG) for controlling the amount of heating fuel supplied. It is preferable.

  In the present invention, the heating fuel is preferably propane gas or butane gas, and the heating fuel storage device is preferably a gas cylinder (20, 20C) or a cassette cylinder.

  And in this invention, it is preferable that the heat insulating material is coat | covered inside the side surface (4 surfaces extended in an up-down direction; 11A, 11B, 12A, 12B) of a casing (box body 10).

  Alternatively, the casing (box body 10) can be attached to the pavement machine (200) via the attachment bracket (30), and the attachment bracket (30) is adjusted to the position where it is attached to the pavement machine (for example, the asphalt finisher 200). It is preferable to provide an attachment position adjusting mechanism (for example, a long hole 31).

  Further, in the present invention, the casing bottom surface (13) is attached to the side surface (12B) of the casing via a hinge mechanism, and the casing bottom surface (13) is closed by rotating the hinge mechanism. It is preferable that the casing bottom face (13) is configured to be changeable to a position where the casing bottom face (13) is opened.

According to the heating device (100) for a pavement tool of the present invention having the above-described configuration, since the two hollow pipes (14) arranged so that the vertical position and the horizontal position are different are provided, By inserting the portions (41, 42) in contact with the asphalt mixture in the pavement tool (40) such as rake between the two hollow pipes (14), or any of the two hollow pipes (14) On the other hand, it can be held in the heating device (100) for paving tools.
And since it is comprised so that the heated air may be ejected from each of the two hollow pipes (14) to the inside of a casing (10i), the part (41,) which contacts the asphalt compound material of a pavement tool (40). 42) is heated and the asphalt mixture becomes difficult to adhere. Even if the asphalt mixture is attached, the asphalt can be melted or peeled off by the heated air ejected from the hollow pipe (14). .
Here, since the two hollow pipes (14) can be rotated with respect to the side surfaces (11A, 11B) of the casing (box body 10) to change the jet direction of the heated air, the pavement tool (40 ) Can be melted or peeled off by reliably injecting heated air to the asphalt mixture adhering to (). Moreover, even if a pavement tool is changed, the injection direction of the heated air can be adjusted according to the shape.

In this invention, the said hollow pipe (14) is comprised so that the heated air may flow through, and is connected to a heating source (for example, gas burner 18), and a heating source (18) is a flexible hose. (19) is connected to a storage device (20) for heating fuel (fuel gas or liquid fuel), and the heating source (18) has a control mechanism (for example, regulator RG) for controlling the amount of heating fuel supplied. If equipped, the control mechanism (RG) can adjust the supply amount of the heating fuel to an appropriate amount, so that the air is heated to such an extent that the asphalt attached to the pavement tool (40) can be reliably melted or peeled off. I can do it.
On the other hand, the air can be prevented from being heated more than necessary, and the consumption amount of the fuel for heating can be kept at an appropriate amount to meet the energy saving demand.

  In the present invention, if the heating fuel is propane gas or butane gas and the heating fuel storage device is a gas cylinder (20, 20C) or a cassette cylinder, a commercially available product can be applied as it is. The fuel can be easily and inexpensively purchased, and the storage device can be simply configured.

In the present invention, if the inside of the side surface (four surfaces 11A, 11B, 12A, 12B extending in the vertical direction) of the casing (box body 10) is covered with a heat insulating material, the heat inside the casing (10i) is covered with the heat insulating material. Is prevented from being directly transmitted to the casing outer wall (10o).
Therefore, even if an operator contacts the casing outer wall (10o), there is no fear of being burned, and safety is ensured.

In the present invention, the casing (box body 10) can be attached to the paving machine (100) via the mounting bracket (30), and the mounting bracket (30) is attached to the paving machine (for example, the asphalt finisher 200). If an installation position adjustment mechanism (for example, the long hole 31) is provided, the asphalt mixture paved on the road from the paving machine (for example, the asphalt finisher 200) is added and the leveled paving tool is immediately installed after the work. It can be put into a heating device to melt or peel off the attached asphalt.
Then, the work of paving the asphalt mixture on the road with a paving machine (for example, asphalt finisher 200), the work of assembling and leveling the asphalt mixture with the paving tool (40), and melting or peeling the asphalt adhering to the paving tool Can be performed continuously and efficiently.

  Further, in the present invention, if the casing bottom surface (13) is configured to be brought into a state in which the casing bottom surface (13) is opened by rotating the hinge mechanism to the side surface (12B) of the casing via the hinge mechanism, Even if asphalt, dust, or foreign matter that has come off or falls into the casing (10i) enters the casing (10i), it can be easily discharged out of the casing by opening the casing bottom face (13).

It is a side view which shows embodiment of this invention. It is a Y arrow line view in FIG. FIG. 2 is a view taken in the direction of arrow X in FIG. 1. It is a side view of the hollow pipe used by embodiment. It is a side view of the bracket in an embodiment. It is a front view of the bracket shown in FIG. It is a side view of an asphalt finisher to which an embodiment of the present invention is applied. It is the A section enlarged view of FIG. It is explanatory drawing which showed typically the effect | action of the heating apparatus for pavement tools of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 3, a heating device 100 for a pavement tool according to the present invention includes a casing 10 and a gas cylinder 20 (heating fuel storage device).
A hand cock 21 is provided at the upper end of the cylinder 20, and a regulator RG is provided in the hand cock 21.

The casing 10 is formed in a box shape by two pairs of side members 11 and 12 and a bottom member 13 facing each other.
The pair of side surface members 11 includes a left side surface member 11A and a right side surface member 11B in FIG. 1, and the height direction dimensions of both are the same.
The pair of side members 12 is composed of an upper side member 12A and a lower side member 12B in FIG. 2, and the height dimension of both is the same.
A pair of hollow pipes 14 are supported by first and second support members 15 and 16 in the interior 10 i of the casing 10.

As shown in FIG. 3, the bottom surface member 13 is connected to the lower end portion of the side member 12A by a hinge (not shown clearly), and rotates around the lower end portion of the side member 12A to open and close. It is configured to do.
On the side surface member 12B side, a locking member (for example, a hook: not shown) for maintaining a closed state when the bottom surface member 13 is closed is provided.
Although not clearly shown, the side surface members 11A, 11B, 12A, and 12B are covered with a heat insulating material over the entire casing inside 10i side, that is, the casing inner peripheral surface excluding the bottom surface member 13. .
Reference numeral 10 o in FIG. 2 indicates the outer wall surface of the casing 10.

1 and 2, a pair of first pipe support members 15 are fixed to the left side member 11A so as to penetrate the side member 11A.
The pair of first pipe support members 15 are configured as hollow tubes, and as shown in FIG. 3, the side member 12A side is located on the upper side and the left side, and the side member 12B side is located on the lower side and on the right side. The vertical position and the horizontal position are offset from each other.

The pair of second pipe support members 16 are fixed to the casing inner surface of the right side member 11B.
The pair of second pipe support members 16 are arranged such that the vertical position and the horizontal position are offset from each other on the right side member 11B.
As a result, the pair of hollow pipes 14 is disposed in the casing 10i in a state where the two are offset horizontally. In other words, the pair of hollow pipes 14 are arranged so that their vertical and horizontal positions are different.

As shown in FIG. 4, a plurality of injection holes 14 a are arranged on the outer peripheral surface of the hollow pipe 14 substantially parallel to the central axis of the pipe over substantially the entire length.
From the injection hole 14a, the air and combustion gas heated by the burner 18 are injected toward the outer radial direction of the hollow pipe 14.
Further, the hollow pipe 14 is fitted to the first pipe support member 15 and the second pipe support member 16 by a so-called “loose fit”.

In FIG. 2, the second pipe support member 16 is formed with a female screw (not shown) extending in the radial direction. A pipe fixing bolt B2 is screwed into the female screw (not shown).
Then, by loosening the pipe fixing bolt B <b> 2, the hollow pipe 14 can be rotated in a state instructed by the first pipe support member 15 and the second pipe support member 16. By rotating the pipe fixing bolt B2, the direction of the injection hole 14a formed in the hollow pipe 14 can be freely changed.
In FIG. 1 and FIG. 2, symbol B <b> 1 indicates a bolt for fixing the burner 18.

In FIG. 1, a pair of casing mounting stays 17 is fixed above the side member 12A. A plurality of mounting bolt holes 17 a are formed in the casing mounting stay 17.
In the illustrated embodiment, the casing 10 is attached to an asphalt finisher (road paving vehicle) via an attachment bracket 30 (see FIGS. 7 and 8). This aspect is shown in FIGS.

In FIG. 1, a gas burner 18 that is a heating device is connected to the left ends of a pair of hollow pipes 14. The gas burner 18 has a burner body 18A and a connecting portion 18B, and the connecting portion 18B includes a cock.
In FIG. 1, the gas cylinder 20 is provided with a regulator RG, and one connection port of a T-shaped connector (three-way connector) TC is connected to the regulator RG via a connection member that is not shown in the figure.
One end of each of the flexible hoses 19 and 19 is connected to the remaining two connection ports of the T-shaped connector (three-way connector) TC.
The other ends of the rubber hoses 19, 19 are connected to a connecting portion 18 </ b> B of a pair of gas burners 18.

5 and 6 show the bracket 30. FIG. The bracket 30 is a member for attaching the casing 10 of the heating device 100 for a paving tool to the pulling arm 210 of the asphalt leveling device of the asphalt finisher 200 (see FIG. 7).
In FIG. 5, a bracket 30 is a member obtained by folding a strip-shaped flat plate into a bowl shape and turning it back. The dimension indicated by the symbol W in FIG. 5 is set to be approximately equal to the thickness dimension of the pull arm 210 of the asphalt leveling device.

In FIG. 6, two long holes 31 extending in the longitudinal direction (vertical direction in FIG. 6) are formed in the longer part of the bracket 30.
The shape of the bracket 30 is not limited to the shape illustrated in FIGS. The shape can be determined by the structure of the mounting position in the paving vehicle.

7 and 8 show a state in which the paving tool heating apparatus 100 is mounted on the asphalt finisher 200. FIG.
In the illustrated embodiment, a small propane cylinder 20C is used as a fuel storage cylinder.
In the illustrated embodiment, only one small propane cylinder 20C is provided. However, a plurality of small propane cylinders 20C can be mounted to cope with work over a long period of time.

7 and 8, the casing 10 is attached to the arm 210 of the asphalt finisher 200.
When attaching the casing 10 to the arm 210, the hook-shaped portions 32 (see FIG. 5) of the pair of brackets 30 are hooked on the arm 210. The interval between the pair of brackets 30 and 30 is equal to the interval between the pair of stays 17 and 17 (see FIG. 1).

When the casing 10 is attached to the arm 210, the stay 17 is positioned on the bracket 30 so that the casing 10 is horizontal, and an attachment bolt (not shown) is inserted into the attachment hole 17a and the long hole 31. The stay 17 is fixed (fastened) to the bracket 30 by fastening with a nut (not shown).
Here, as shown in FIG. 7, one of the pair of brackets 30 is locked to the curved portion of the arm 210, and the curved portion is a straight line of the arm 210 to which the other bracket 30 is locked. Compared to the part, it is located below.
However, a plurality of mounting holes 17 a (see FIG. 1) are formed in the stay 17 of the casing 10, and the mounting holes of the bracket 30 are configured by long holes 31. Therefore, when the stay 17 and the bracket 30 are fastened by a mounting bolt (not shown), the degree of freedom for adjusting the relative position of the stay 17 and the bracket 30 is very large. Therefore, the casing 10 can maintain a horizontal state without being inclined and attached.

FIG. 9 shows a procedure for removing the asphalt mixture from the paving tool by the heating device 100 for paving tools.
In FIG. 9, a scoop 40 is illustrated as a pavement tool.
In 9A of FIG. 9, the tip 40t of the scoop 40 (the portion to which the asphalt mixture is attached) is brought into contact with the bottom member 13 of the casing 10 and held.
In order to clearly show that the heated air hits the tip 40 t of the scoop 40, FIG. 9 shows a state where the tip 40 t of the scoop 40 is separated from the pipe 14.

Here, in actual work, if a pavement tool (for example, a scoop 40) is inserted between the two pipes 14, 14, the two pipes 14, 14 are often held in contact with each other. However, depending on the size of the pavement tool and the arrangement of the pipes 14 and 14, the pavement tool may be held in the casing 10 without contacting the pipes 14 and 14.
Further, in FIG. 9, the scoop 40 is shown as a pavement tool, but depending on the type and size of the pavement tool, it is held by any one pipe 14 and the bottom surface 13 of the pavement tool heating device 100. In some cases.

If the scoop 40 is held in the casing 10, the pipe fixing bolt B <b> 2 (see FIG. 2) is loosened, the hollow pipe 14 is rotated, and the direction of the injection hole 14 a formed in the hollow pipe 14 is the surface 41 of the scoop 40. And it adjusts so that it may face the suitable place (location where asphalt compound AF adhered) of back 42 (refer to 9B of Drawing 9).
Then, the burner 18 is ignited and the regulator RG (see FIG. 1) is adjusted to adjust the fire power of the burner 18. As a result, heated air is injected from the injection holes 14 a formed in the hollow pipe 14 to heat the scoop 40.

By heating the scoop 40, the asphalt mixture AF adhering to the scoop surfaces 41, 42 is melted and falls onto the bottom member 13 of the casing 10. And as shown by 9C of FIG. 9, it removes from the surfaces 41 and 42 of a scoop (9B of FIG. 9).
Then, the regulator RG is closed, the direction of the injection hole 14a formed in the hollow pipe 14 is returned to the original direction, the scoop 40 is taken out, and the series of removal operations is completed.

If the asphalt mixture AF adhering to the scoop 40 is removed, the bottom member 13 in the heating apparatus 100 for pavement tools is opened, and the asphalt mixture AF removed from the scoop 40 and formed into a lump is removed from the casing 10. To discharge. Similarly, when a foreign object enters the pavement tool heating apparatus 100, the bottom member 13 is opened and the foreign object is discharged out of the casing 10.
If the asphalt mixture and foreign material which became the lump are discharged | emitted, the bottom face member 13 will be closed.

According to the illustrated embodiment, since the two hollow pipes 14 that are offset both vertically and horizontally are provided, the portions 41 and 42 in contact with the asphalt mixture in the pavement tool such as the scoop 40 are replaced by the two hollow pipes. The paving tool can be held in the heating device 100 for paving tools by inserting it between the two or by one of the two hollow pipes 14 and the bottom 13.
And since it is comprised so that the heated air may be ejected from the inside of each of the two hollow pipes 14 to the casing interior 10 i, the asphalt composite material is formed in the portions 41 and 42 of the scoop 40 that contact the asphalt composite material. It becomes difficult to adhere. Even if the asphalt mixture is attached, the asphalt can be melted or peeled off by the heated air ejected from the hollow pipe 14.
Here, since the two hollow pipes 14 can be rotated with respect to the casing side surfaces 11A and 11B to change the jet direction of the heated air, the asphalt mixture adhering to the scoop 40 is surely secured. Heated air can be applied to melt or peel off.

In the illustrated embodiment, the hollow pipe 14 is configured so that heated air flows and is connected to a gas burner 18, and the gas burner 18 is connected to a gas cylinder 20 by a flexible hose 19. The gas burner 18 includes a regulator RG that controls the amount of heating fuel supplied. Therefore, since the supply amount of the heating fuel can be adjusted to an appropriate amount by the regulator RG, the air can be heated to such an extent that the asphalt attached to the scoop 40 can be reliably melted or peeled off.
On the other hand, the regulator RG can be throttled to prevent the air from being heated more than necessary, and the consumption amount of the fuel for heating can be kept at an appropriate amount to meet the demand for energy saving.

In the illustrated embodiment, propane gas or butane gas is used as the heating fuel, and since the storage device for the heating fuel is the gas cylinder 20 or the small gas cylinder 20C, a commercially available product can be applied as it is.
Therefore, the heating fuel can be easily and inexpensively purchased, and the storage device can be simply configured.

In the illustrated embodiment, since the heat insulating material is covered over the entire inner surfaces of the side surfaces 11A, 11B, 12A, and 12B of the casing 10, the heat inside the casing 10i reaches the casing outer wall 10o by the heat insulating material. It is prevented from being transmitted.
Therefore, even if an operator contacts the casing outer wall (outer peripheral surface) 10o, there is no risk of burns and it is safe.

In the illustrated embodiment, the casing 10 is attached to the asphalt finisher 200 via, for example, a mounting bracket 30, so that the asphalt mixture paved on the road from the asphalt finisher 200 is used for the work of leveling. The pavement tool can be put into the casing 10 immediately after work to melt or peel off the attached asphalt mixture.
Therefore, the work of supplying asphalt mixture to the road by the asphalt finisher 200, the work of assembling and leveling the asphalt mixture by the paving tool (scoop) 40, and the work of melting or peeling the asphalt adhering to the paving tool, It can be executed continuously and efficiently.

  Furthermore, in the present invention, the bottom member 13 of the casing is configured such that the bottom member 13 is opened by turning the hinge mechanism to the side surface 12A of the casing via the hinge mechanism. By opening, the asphalt mixture removed from the pavement tool (scoop) 40, and dust and foreign matter that have entered the casing interior 10i can be easily discharged out of the casing 10.

The illustrated embodiment is merely an example, and is not intended to limit the technical scope of the present invention.
For example, in the illustrated embodiment, the storage device for the heating fuel uses the gas cylinder 20 or the small gas cylinder 20C, but a cassette cylinder (not shown) can also be used.

DESCRIPTION OF SYMBOLS 10 ... Casing 11 ... A pair of side member 12 ... A pair of side member 13 ... Bottom member 14 ... Hollow pipe 15 ... 1st support member 16 ... .. second support member 17 ... stay 18 ... gas burner 19 ... hose 30 ... bracket 40 ... paving tool / scoop 100 ... paving tool heating device 200 ... asphalt Finisher

Claims (6)

  A casing and two hollow pipes rotatably mounted on the side of the casing are provided, and the two hollow pipes are arranged so that the vertical position and the horizontal position are different, and each hollow pipe is formed on the surface. The heated air is jetted into the casing through the opened opening, and the jetting direction of the heated air is changed by rotating with respect to the side surface of the casing. Heating device for paving tools.   A heating source is connected to one end of the hollow pipe, and the heating source is connected to a heating fuel storage device via a flexible hose, and the heating source controls the amount of heating fuel supplied. The heating device for a pavement tool according to claim 1, further comprising a control mechanism for controlling the pavement tool.   The heating apparatus for a pavement tool according to claim 2, wherein the heating fuel is propane gas or butane gas, and the storage apparatus for the heating fuel is a gas cylinder or a cassette cylinder.   The heating apparatus for a pavement tool according to claim 3, wherein a heat insulating material is coated on an inner side surface of the casing.   The heating apparatus for a paving tool according to claim 4, wherein the casing is attachable to the paving machine via the mounting bracket, and the mounting bracket is provided with an attachment position adjusting mechanism for adjusting a position where the casing is attached to the paving machine.   The bottom surface of the casing is attached to the side surface of the casing via a hinge mechanism, and the hinge mechanism rotates to change the position so that the casing bottom surface is closed and the casing bottom surface is opened. The heating device for a pavement tool according to claim 5, which is configured to be possible.

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