JP7345073B2 - Pressure pasting device and pressure pasting method for paving materials - Google Patents

Description

The present invention relates to a press-applying device and a press-applying method for paving materials, and more particularly, to a paving method in which a tape-shaped paving material wound into a roll is press-attached to a construction surface having an L-shaped cross section. The present invention relates to a press-applying device and a press-applying method for materials.

Traditionally, molded joint material in the form of a tape has been used to prevent rainwater from entering from the joints and edges of asphalt pavement. Various devices for pasting on surfaces have also been proposed, as seen in Patent Documents 1 and 2, for example.

However, the molded joint materials targeted by these conventional pasting machines are tape-shaped joint materials with a nearly constant cross-sectional shape, and are used to seal joints of asphalt pavement or the edges of pavement, for example, to prevent rainwater from entering. Even if you try to paste it on a vertical surface such as the joint between a wall and a curb, there are usually unevenness and dust on the vertical cross section of the joint, so although it will stick once, it will soon twist from the top edge and the joint will not stick. There was a drawback that it was difficult to make sure that they were in close contact.

In order to solve these drawbacks, the applicant has developed a molded joint material that is formed into a tape shape and has a recess for bending along the expected bending line on one or both sides, and disclosed in Patent Document 3. Disclosed. Since this molded joint material has a recess for bending, it can be easily bent into an L-shape to cover both the horizontal surface and the rising surface of the cut end surface of the L-shaped cross section that occurs during repair work using the cutting overlay method, etc. It is an extremely excellent molded joint material that can be attached tightly to the joints and effectively prevent rainwater from seeping into the joints.

However, the above-mentioned molded joint material that can be bent into an L-shape is attached to both the horizontal surface and the rising surface of the cut end surface of the L-shaped cross section, so it is difficult to apply the molded joint material as disclosed in Patent Documents 1 and 2. It is not possible to paste using a pasting device designed for pasting only on vertical surfaces.

In order to eliminate this inconvenience, the applicant has developed a paving material press-applying device that includes a paving material holder that rotatably holds a roll of paving material, and a press-applying ring tilted from the horizontal. It was developed and disclosed in Patent Document 4. According to the device disclosed in Patent Document 4, the paving material is fed out from the roll and the tape-shaped paving material is pressed against both the horizontal surface and the vertical rising surface of the cut end surface having an L-shaped cross section. , can be pressed and pasted. This makes it possible for workers to apply paving materials such as molded joint material while standing, which greatly reduces the burden on workers.

However, according to later findings independently obtained by the present applicant, in the apparatus disclosed in Patent Document 4, when the construction section becomes long, the tape-shaped paving material may be changed to its original setting. It has been found that there is a problem in that the setting position of the tape-shaped paving material must be corrected each time it shifts above or below the cut end face of the L-shaped cross section. In this respect, the device disclosed in Patent Document 4 still leaves room for improvement.

Japanese Patent Application Publication No. 5-17907 Utility model registration No. 3062202 Utility model registration No. 3189337 Japanese Patent Application Publication No. 2016-211353

The present invention has been made in view of the above-mentioned state of the prior art, and it is possible to apply tape-shaped paving materials such as molded joint materials to horizontal and vertical surfaces of construction surfaces with an L-shaped cross section, such as cut edges, with little displacement. It is an object of the present invention to provide a press-applying device and a press-applying method for paving materials that enable pressing and adhering to both rising surfaces.

In order to solve the above problem, as a result of intensive research and trial and error, the present inventors immediately applied a tape-shaped paving material unwound from a roll to both the horizontal surface and the rising surface of an L-shaped construction surface. Instead of pressing the tape-shaped paving material onto the surface, the tape-shaped paving material is first positioned by pressing and pasting only the upper side along the longitudinal direction to the upper corner of the construction surface that has an L-shaped cross section. Then, the approximately central part of the paving material is pushed into the inside corner of the construction surface having an L-shaped cross section, and the paving material extending on both sides of the inside corner is pushed so that the leading end has an angle that fits the inside corner. By pressing and pasting both the horizontal and vertical surfaces of the construction surface with a pressing ring, the tape-shaped paving material can be continuously applied to both the horizontal and vertical surfaces of the construction surface with an L-shaped cross section, with little misalignment. It has been found that it can be pressed and adhered.

That is, the present invention provides a press-applying device for tape-shaped paving materials, which is a combination of a side pressing device for tape-shaped paving materials described below and a tape surface pressing device for tape-shaped paving materials described below. By providing this, the above problem is solved.

In a preferred embodiment of the present invention, the tape-shaped paving material side pressing device includes a contact surface that abuts one side of a paving material roll around which the tape-shaped paving material is wound; a roll support body having a roll support shaft protruding substantially perpendicularly from the contact surface and inserted into the center gap of the paving material roll; and the roll support at a position where the contact surface and the roll support shaft face obliquely upward. a first support mechanism that supports the body; a side pressure roller that is rotatably supported around an axis; a second support mechanism that is located on a vertical plane parallel to a vertical plane including the contact surface and supported in a direction inclined from horizontal, the axis of the side pressing roller being parallel to the contact surface and supporting the Intersects with a roll end plane a distance corresponding to the width of the paving material roll from the contact surface, and the intersection position is below the position where the axis of the roll support shaft intersects the roll end plane. and a second support mechanism that supports the side pressure roller at a position where the pressure roller surface of the side pressure roller extends on both sides of the roll end plane, and the first support mechanism. and the second support mechanism; the first frame, together with the first support mechanism and the second support mechanism; a moving mechanism that supports the side pressure roller so as to be able to move on the upper surface and/or the lower surface of the step while abutting the side pressure roller; and a guide member attached to the first frame, the guide member having a cross section. a guide member that prevents the first frame from approaching the rising surface by a predetermined distance or more by coming into contact with the rising surface rising from the lower side of the L-shaped construction surface; It is a side pressing device.

In a preferred embodiment, the first support mechanism includes means for adjusting the inclination angle of the contact surface of the roll support from horizontal, thereby adjusting the cutting depth of the pavement surface layer depending on the construction site, for example. Even if the height of the vertical rising surface of the L-shaped cross-sectional construction surface is different, it is possible to adjust the inclination angle as appropriate.

Further, in another preferred embodiment, the second support mechanism includes a biasing means for biasing the side pressure roller downward, whereby the tape-shaped paving by the side pressure roller is It becomes possible to press the material more reliably.

Further, in a preferred embodiment of the present invention, the tape surface pressing device for the tape-shaped pavement material is a first pressing ring rotatably supported around a support shaft, the outer peripheral end surface of which is a first pressing ring that protrudes at an acute angle in the radial direction over the entire circumference; and a second pressing ring that is rotatably supported around the support shaft, the outer peripheral end surface of which projects at an approximately right angle in the radial direction over the entire circumference. The second pressing ring, a plane including the apex of the outer peripheral end face of the first pressing ring that projects at an acute angle, and a plane including the apex of the outer peripheral end face of the second pressing ring that projects at a substantially right angle are on the same plane. , and the outer circumferential end surface of the second pressing ring protruding at a substantially right angle is set at an angle such that it abuts both the lower surface of the L-shaped cross-sectional construction surface existing in the stepped portion and the rising surface rising from the lower surface. A tape-like structure comprising: a second frame that supports the first pressing ring and the second pressing ring; and a moving mechanism that supports the second frame so that it can move on the upper surface and/or lower surface of the step. This is a tape surface pressing device for paving materials.

In one preferred embodiment, the second pressing ring includes an upper half ring and a lower half ring each having a truncated conical shape with the same bottom radius, and the upper half ring and the lower half ring have their bottom faces facing each other. They are combined in the same orientation, and are independently rotatably supported around the support shaft that passes through the center of both bottom surfaces and is perpendicular to both bottom surfaces. As a result, the pressing and pasting of the paving material to the horizontal lower surface of the L-shaped cross-sectional construction surface and the pressing and pasting of the paving material to the vertical rising surface are performed by independently rotating press wheels. This can be done independently, and the displacement of the tape-shaped paving material can be further reduced.

It is preferable that the angle formed by the truncated conical bottom surface and the truncated conical side surface of the upper half ring and the lower half ring is approximately 45 degrees, so that the protruding angle of the tip surface of the second pressing ring is approximately 90 degrees, This will match the angle of the inside corner of the construction surface of the L-shaped cross section.

The first and second pressing wheels, as well as the upper and lower half wheels constituting the second pressing ring, are used to push tape-shaped paving material into the corner of the construction surface, and to push the tape-shaped paving material into the corner of the construction surface, and to press the tape-shaped paving material into the corner of the construction surface, and It may be made of any material as long as it can be pressed and adhered to both surfaces, and may be made of any suitable material such as rubber, synthetic resin, or metal. However, considering that the construction surface with an L-shaped cross section usually has some unevenness, at least the surfaces of the second pressing ring and the upper and lower half rings that constitute the second pressing ring have elasticity. Preferably, the material is made of natural or artificial rubber having the following properties.

The present invention also provides a press-applying method for press-applying a tape-shaped paving material to a construction surface having an L-shaped cross section existing at a stepped portion, the tape-shaped paving material being applied from a paving material roll. By feeding out and pressing the upper side part against the upper corner of the construction surface, the upper side of the tape-shaped pavement material is sequentially placed at or near the upper corner of the construction surface having an L-shaped cross section. Tape side pressing process in which the tape-shaped paving material is pasted at or near the upper corner of the construction surface whose upper side is L-shaped in cross section, is pressed between the upper and lower sides. a first pressing step of sequentially pressing toward the inner corner of the construction surface when the cross section is L-shaped by a first pressing ring whose outer peripheral end surface protrudes at an acute angle in the radial direction over the entire circumference; The tape-shaped paving material, which has been pressed toward the inner corner of the construction surface at the position between the parts, is successively cross-sectioned by a second pressing ring whose outer peripheral end surface protrudes approximately at right angles to the radial direction over the entire circumference. The above problem is solved by providing a press sticking method including a second pressing step of pressing toward the lower surface and rising surface of the L-shaped step.

In the pressure adhesion method, it is preferable that the tape side pressing step is performed using the above-mentioned side pressing device for tape-shaped pavement material according to the present invention, and the first pressing step and the second pressing step The step is preferably carried out using the above-described tape surface pressing device for tape-shaped pavement material according to the present invention.

The tape-shaped paving material to which the present invention is directed is preferably a molded joint material having a recessed part for bending as disclosed in Patent Document 3, but is not limited thereto, and is rolled into a roll. Any type of paving material, such as a tape-shaped molded joint material, which is pressed and adhered to both the horizontal lower surface and rising surface of a construction surface with an L-shaped cross section. It may also be a paving material. Furthermore, there is no particular restriction on the construction surface with an L-shaped cross section, which is the object of the present invention, and it can be applied not only to pavement joints, curbs, paving stops, and rising parts of bridge end structures, but also to existing pavements. Naturally, this also includes a construction surface with an approximately L-shaped cross section created by cutting and removing a portion of the surface.

According to the press-applying device and press-applying method for tape-shaped paving material according to the present invention, the tape-shaped paving material can be applied to an L-shaped cross section without forcing the worker to bend down. The advantage is that it can be continuously pressed and adhered to a surface with little displacement.

FIG. 1 is a front view showing an example of a side pressing device for a tape-shaped paving material of the present invention. FIG. 2 is a plan view of the side pressing device for the tape-shaped paving material shown in FIG. 1; 3 is a vertical sectional view taken along the line XX' in FIG. 2. FIG. FIG. 2 is a horizontal sectional view taken along line YY' in FIG. 1; It is a reference front view explaining the details of a 1st support mechanism. It is a reference front view explaining the details of a 1st support mechanism. 3 is a vertical sectional view taken along Z-Z' in FIG. 2; FIG. 8 is a left side view of FIG. 7. FIG. FIG. 3 is a reference plan view for explaining the positional relationship between a roll support shaft and a side pressing roller. It is a reference front view for demonstrating the positional relationship of a roll support shaft and a side press roller. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view showing an example of a tape surface pressing device for a tape-shaped paving material of the present invention. 12 is a cross-sectional view taken along line XX-XX' in FIG. 11. FIG. FIG. 13 is a diagram showing only a portion of the first pressing ring in FIG. 12; FIG. 12 is a front view of FIG. 11; FIG. 12 is a diagram showing only a portion of the second pressing ring in FIG. 11; It is a figure which shows the state where the paving material roll was set in the side press device. It is a figure which shows the state where the paving material was taken out from the paving material roll and set to an initial position. It is a figure which shows a tape side part pressing process. It is a figure showing a first press process. It is a figure showing a second pressing process.

Hereinafter, the present invention will be explained in detail using the drawings, but it goes without saying that the present invention is not limited to what is shown in the drawings.

A. Side Pressing Apparatus for Tape-shaped Paving Materials First, the side-pressing apparatus for tape-shaped paving materials that constitutes the press-applying apparatus for tape-shaped paving materials of the present invention will be described.

FIG. 1 is a front view of a side pressing device for tape-shaped paving material according to the present invention, and FIG. 2 is a plan view thereof. 1 and 2, 1 is a side pressing device for tape-shaped paving material, 2 is a first frame, 3a and 3b are main support columns installed upright on the first frame 2, and 4a and 4b are side pressers. It is a pillar. 5a and 5b are connection frames that connect the main body struts 3a and 3b and the side struts 4a and 4b, respectively, and 6 is an auxiliary frame that connects the side struts 4a and 4b. The side support 4a is provided with an extensible part consisting of a threaded part 4c and an insertion part 4d at a position slightly lower than the auxiliary frame 6, and is adapted to the height of the rising surface _S on the construction surface S, which will be described later. The length of the side support 4a can be adjusted by adjusting the length of the side support 4a. This also applies to the side struts 4b. Note that the lengths of the main body struts 3a, 3b and the side struts 4a, 4b are partially omitted.

7 is a roll support body, and the roll support body 7 includes a roll support plate 7b, a contact surface 7s corresponding to the upper surface of the roll support plate 7b, and a roll support shaft 7r protruding approximately perpendicularly from the contact surface 7s. have. A paving material roll (not shown) wound with a tape-shaped paving material is prepared by inserting the roll support shaft 7r into the center gap of the roll, and bringing one side of the roll into contact with the contact surface 7s. It is rotatably supported on the roll support body 7 around the axis of the roll support shaft 7r.

In this example, the roll support shaft 7r is rotatably supported around the axis of the roll support shaft 7r with respect to the roll support plate 7b, and the paving roll is rotated around the axis of the roll support shaft 7r. When rotating, the roll support shaft 7r also rotates together with the paving roll. In addition, the roll support shaft 7r may be fixed to the support plate 7b, and only the paving material roll may rotate around the axis of the roll support shaft 7r. 8 is a tape guide roller attached to the roll support plate 7b. The tape guide roller 8 may be rotatably supported by the roll support plate 7b, or may be fixed to the support plate 7b.

9a and 9b are first support mechanisms whose one ends are attached to both sides of the roll support plate 7b, and whose other ends are attached to the first frame 2 via support struts 10a and 10b. As shown in the figure, the roll support body 7 is supported and fixed to the first frame 2 in a position where the contact surface 7s and the roll support shaft 7r face obliquely upward by the first support mechanisms 9a and 9b. Details of the first support mechanisms 9a and 9b will be described later.

Reference numeral 11 denotes a side pressure roller, which is attached to the first frame 2 via a second support mechanism 12. As shown in FIGS. 1 and 2, the side pressing roller 11 is supported by the second support mechanism 12 so that its tip faces diagonally downward. Note that details of the side pressure roller 11 and the second support mechanism 12 will be described later. _hL is a large elongated hole provided in the first frame 2, and _hS is a small elongated hole similarly provided in the first frame 2.

13a and 13b are guide rollers, and 13ar and 13br are vertical support shafts thereof (however, 13br is not shown). 14a, 14a are moving wheels attached to the lower surface of the first frame 2, and 15a are moving wheels attached to the lower surface of the side support 4a. Note that below the main body support 3b, moving wheels 14b, 14b (not shown) are attached to the lower surface of the first frame 2, similar to the moving wheels 14a, 14a located below the main body support 3a. Moving wheels 15b, also not shown, are attached to the lower surface of the side support 4b. S is a construction surface with an L-shaped cross section (inverted L-shape in FIG. 1), and the construction surface S includes a lower surface S _L , an upper surface S _U , and a rising surface, as shown in part at the bottom right of FIG. It is composed of S _S , an inside corner S _C , and an upper corner _SE .

When the side pressing device 1 for tape-shaped paving material is installed at the position shown in FIG. 1 and the connecting frames 5a and 5b are gripped, the side pressing device 1 is moved in a direction perpendicular to the plane of the paper. The side pressing device 1 brings the side pressing roller 11 into contact with the upper corner _SE of the construction surface S, and moves the upper surface S U and the lower surface _S of the construction surface S using the moving wheels 14a, 14b, 15a, and 15b. It will move on _L. At this time, since the guide rollers 13a and 13b come into contact with the rising surface _SS , the side pressing device 1 is prevented from approaching the rising surface _SS by a predetermined distance or more.

In this example, the guide rollers 13a and 13b are configured as rotating rollers that are rotatably supported around vertical axes by vertical support shafts 13ar and 13br, but they do not necessarily need to be rotating rollers. Any guide member that can move on the rising surface _S without large resistance while in contact with the rising surface _S may be used, and the guide member may be a rod-shaped or plate-shaped member with a smooth surface such as a circle or an ellipse in horizontal cross section. It's okay.

FIG. 3 is a vertical cross-sectional view taken along the line XX' in FIG. 2, and for convenience, parts of the side frames 4b, connection frames 5b, and main body struts 3b are omitted. FIG. 4 is a YY' horizontal sectional view of FIG. 1, and the side frames 4a and 4b are omitted for convenience.

As seen in FIGS. 3 and 4, one end of the first support mechanisms 9a, 9b is attached to both sides of the roll support plate 7b via connecting members 16aj, 16bj. 16a and 16b are connection auxiliary members, 17a and 17b are rotation blocks, 18a and 18b are connection blocks, and 19a and 19b are support arms, and the bases of the support arms 19a and 19b are attached to the upper ends of the support columns 10a and 10b. The connecting blocks 20a and 20b are attached to the connecting blocks 20a and 20b. 7c is the axis of the roll support shaft 7r.

The connecting members 16aj, 16bj and the auxiliary connecting members 16a, 16b are connected, and the auxiliary connecting members 16a, 16b are connected to connecting rods 16ap, 16bp (the connecting rod 16ap is not shown in the figure) provided at their tips. It is fixed to the rotation blocks 17a, 17b with a part of the (not shown) inserted into the rotation blocks 17a, 17b, and is connected to the rotation blocks 17a, 17b. Further, the connection blocks 18a, 18b are temporarily fixed to the rotation blocks 17a, 17b with a part of their respective spherical tips 18ah, 18bh inserted into the rotation blocks 17a, 17b. 17b.

Since the first support mechanisms 9a and 9b are configured as described above, for example, as shown in FIG. The connecting state between the tip portions 18ah, 18bh and the rotating blocks 17a, 17b is loosened, the connecting angle of the rotating blocks 17a, 17b to the connecting blocks 18a, 18b is changed, and the contact surface 7s of the roll support 7 is moved from the horizontal. The tilt angle can be adjusted.

Further, as shown in FIG. 6, by loosening other fixing screws (not shown) in the rotation blocks 17a, 17b, the connection state between the connection rods 16ap, 16bp of the connection auxiliary members 16a, 16b and the rotation blocks 17a, 17b can be changed. By loosening the connecting rods 16ap, 16bp and changing the insertion depth into the rotating blocks 17a, 17b, the distance between the rotating blocks 17a, 17b and the connecting auxiliary members 16a, 16b is changed, and the center of the contact surface 7s, i.e. , the height position of the intersection between the contact surface 7s and the axis 7c of the roll support shaft 7r can be adjusted.

The first support mechanisms 9a, 9b are adapted to adjust the inclination angle of the contact surface 7s from the horizontal as described above and/or to adjust the height position of the intersection of the contact surface 7s and the axis 7c of the roll support shaft 7r. When equipped with an adjustment means, by appropriately adjusting the positional relationship between the paving material roll supported on the contact surface 7s and the construction surface S having an L-shaped cross section, the paving material roll can be fed out. The side portion of the tape-shaped paving material can be pressed and adhered to the upper corner _SE of the construction surface S having an L-shaped cross section with less displacement.

FIG. 7 is a front view showing only the side pressure roller 11 and the second support mechanism 12 that supports the side pressure roller 11 in FIG. Equivalent to. As seen in FIG. 7, the second support mechanism 12 includes a support part 21 that rotatably supports the side pressure roller 11 around an axis 11c, and a support arm connected to the support part 21 via a threaded part 22p. 22. It is composed of a support column 23 attached to one of the small elongated holes _hS of the first frame 2 with a nut 23n, and a connecting pin 24 that rotatably connects the support column 23 and the support arm 22. . By such a second support mechanism 12, the side pressing roller 11 is rotatably supported in a direction inclined from the horizontal with its tip facing downward. It is preferable that at least the outer peripheral portion of the side pressing roller 11 is made of an elastic material such as soft resin or rubber.

In this example, the second support mechanism 12 further includes an engagement post 25 attached to the other small elongated hole _hS of the first frame 2 with a nut 25n, and a threaded portion 22p of the engagement post 25 and the support arm 22. The side pressing roller 11 is always pulled in the direction of the engagement column 25, and in terms of direction, it is pulled downward. is being energized towards. In other words, the elastic member 26, such as a coil spring, stretched between the engagement column 25 and the threaded portion 22p of the support arm 22 serves as a biasing means for biasing the side pressure roller 11 downward. .

Since the second support mechanism 12 includes the biasing means as described above, the side pressure roller 11 is always biased and pressed against the upper corner _SE of the construction surface S during use. Therefore, the side portion of the tape-shaped paving material can be more effectively pressed and adhered to the upper corner _SE of the construction surface S or the vicinity thereof.

Note that the biasing means is not limited to a coil spring. It goes without saying that elastic means such as a plate spring or rubber may be used in place of the coil spring, and the arrangement of these elastic means is not limited to that shown in the drawings.

In addition, in this example, the support arm 22 and the support part 21 are such that a threaded part 22p formed at the lower end of the support arm 22 is screwed into a female threaded part formed inside the upper end of the support part 21. Therefore, by rotating the support part 21 and the support arm 22 relative to each other, the support part 21 can be moved in the axial direction with respect to the support arm 22, and the height of the side pressing roller 11 can be changed. The direction position can be adjusted. This makes it possible to always adjust the height direction position of the side pressing roller 11 to the optimum position even at a construction site where the height of the rising surface S _S of the construction surface S varies.

Furthermore, by loosening the nuts 23n and 25n, the connection between the support column 23 and the engagement column 25 and the first frame 2 is temporarily released, and the support column 23 and/or the engagement column 25 are inserted into the small elongated hole _hS. It is also possible to move it to an appropriate position along the longitudinal direction at any time. As a result, the position of the side pressing roller 11 of the tape-shaped paving material along the traveling direction of the side pressing device 1 is changed, and the distance between the side pressing roller 11 and the roll support 7, especially its roll support shaft 7r, is changed. can be changed and adjusted as appropriate. In order to fix the support column 23 and the engagement column 25 to the first frame 2, the nuts 23n and 25n may be tightened again.

FIG. 8 is a left side view of FIG. 7. As shown in FIG. 8, a notch H is provided in a part of the side surface of the first frame 2, and the side pressure roller 11 passes through this notch H and passes through the upper corner of the construction surface S. It can come into contact with _SE .

FIG. 9 is a reference plan view for explaining the positional relationship between the roll support shaft 7r and the side pressure roller 11 in the roll support 7. As shown in FIG. In FIG. 9, _P7 is a vertical plane including the axis 7c of the roll support shaft 7r, _P11 is a vertical plane including the axis 11c of the side pressing roller 11, and the vertical plane _P11 and the vertical plane _P7 is parallel to In other words, the side pressing roller 11 is arranged in the second direction so that the vertical plane _P11 including the axis 11c thereof is parallel to the vertical plane P7 including the axis 7c of the roll support shaft 7r constituting the roll support ₇ . It is supported by a support mechanism 12. In this way, since the axis 7c of the roll support shaft 7r and the axis 11c of the side pressure roller 11 are located on vertical planes parallel to each other, the tape-shaped pavement that is paid out from the roll support shaft 7r is The material is brought into contact with the side pressing roller 11 without being twisted in any way as it is being fed out, and is pressed and adhered to the upper corner _SE of the construction surface S or its vicinity. .

Similar to FIG. 9, FIG. 10 is a reference front view for explaining the positional relationship between the roll support shaft 7r and the side pressure roller 11 in the roll support 7, and for convenience, only the parts necessary for the explanation are shown. There is. In FIG. 10, R is a paving material roll, and the paving material roll R has a roll support shaft 7r passing through its center gap, and the lower side surface is in contact with the contact surface 7s. It is supported by a support body 7. W is the width of the tape-shaped paving material forming the paving material roll R, and _PR is a plane including the upper end side surface of the paving material roll R in the above state. In other words, the plane _PR is a roll end plane that is parallel to the contact surface 7s and spaced apart from the contact surface 7s by a distance corresponding to the width W of the paving material roll R.

_C7C is a horizontal line drawn horizontally from the position where the axis 7c of the roll support shaft 7r intersects the roll end plane _PR , and _C11C is a horizontal line drawn horizontally from the position where the axis 7c of the roll support shaft 7r intersects the roll end plane _PR. This is a horizontal line drawn horizontally from the point where it intersects with. h _7C is the height of the horizontal line C _7C from the reference plane (in the case shown, the lower surface S _L of the construction surface S); h _11C is the height from the reference plane of the horizontal line C _11C (in the case shown, the lower surface S _L of the construction surface S) It is the height of As is clear from the figure, there is a relationship h _7C > h _11C , and the axis 11c of the side pressing roller 11 intersects with the roll end plane P _R , and the position of the intersection intersects with the axis of the roll support shaft 7r. The core 7c is supported by the second support mechanism 12 below the position where it intersects the roll end plane _PR . Further, as is clear from the figure, the pressure roller surfaces of the side pressure rollers 11 extend on both sides of the roll end plane _PR .

In this way, the axis 11c of the side pressing roller 11 intersects with the roll end plane _PR , and the intersection position is greater than the position where the axis 7c of the roll support shaft 7r intersects with the roll end plane _PR . is also lower, and is supported by a second support mechanism 12 at a position where the pressing roller surface of the side pressing roller 11 extends on both sides of the roll end plane _PR . As a result, the tape-shaped paving material fed out from the paving material roll R is smoothly pressed and adhered to the upper corner _SE of the construction surface S.

B. Tape surface pressing device for tape-shaped paving material Next, a tape surface pressing device for tape-shaped paving material constituting the paving material pressing and adhering device of the present invention will be described.

FIG. 11 is a plan view showing an example of a tape surface pressing device for a tape-shaped pavement material according to the present invention. In FIG. 11, 30 is a tape surface pressing device according to the present invention, 31 is a first pressing ring, and 32 is a second pressing ring. The first pressing ring 31 and the second pressing ring 32 are rotatably supported at the lower end portions of the inclined columns 33a and 33b, respectively. 34a and 34b are upright columns, 35 is a connecting frame, and the inclined columns 33a and 33b are connected to the connecting frame 35. The second frame is constituted by the inclined columns 33a, 33b, the upright columns 34a, 34b, and the connecting frame 35. Reference numeral 36 denotes a handle attached to the upper end of the inclined support columns 33a, 33b.

12 is a vertical sectional view taken along line XX-XX' in FIG. 11, and FIG. 13 is a diagram showing only the first pressing ring 31 in FIG. 12.

As seen in FIGS. 12 and 13, the first pressing ring 31 consists of two thin truncated cone-shaped lower half rings 31a and an upper half ring 31b that are pasted together with their bottom surfaces aligned with each other. It has an integrated shape and is rotatably supported around a support shaft 31r that passes through the center of both bottom surfaces and is perpendicular to both bottom surfaces.

The side surface 31as of the two truncated cone-shaped lower half rings 31a and the side surface 31bs of the upper half ring 31b that are bonded together constitute an outer peripheral end surface of the first pressing ring 31. 31t is the vertex of the outer peripheral end face. As shown in the figure, the outer peripheral end surface of the first pressing ring 31, which is composed of side surfaces 31as and 31bs, protrudes in the radial direction over the entire circumference of the first pressing ring 31, and the protruding angle α ₁ is less than 90 degrees, i.e. It is an acute angle.

Further, the angle β ₁ between the plane P ₁ including the apex 31t of the outer circumferential end face and the horizontal plane is 45 degrees. The angle β ₁ is not necessarily limited to 45 degrees, but considering that the angle of the entrance corner S _C on the construction surface S with an L-shaped cross section is usually 90 degrees, it is preferable to use a tape-shaped paving material first. In order to reliably press the inside corner S _C with the pressing ring 31, it is most preferable that the angle _β1 is 45 degrees or approximately 45 degrees, and even if there is a slight deviation, it is within the range of 40 degrees to 50 degrees. is preferable.

The first pressing ring 31 may be made of any material as long as it can push the tape-shaped paving material into the corner _SC of the construction surface S, press it, and stick it. For example, it can be made of rubber. It can be constructed using appropriate materials such as , synthetic resin, metal, etc.

14 is a front view of FIG. 11, and FIG. 15 is a diagram showing only the second pressing ring 32 shown in FIG. 14. In FIG. 14, the first pressing ring 31 is not drawn for convenience.

As seen in FIGS. 14 and 15, the second pressing ring 32 is composed of two truncated cone-shaped lower half rings 32a and upper half rings 32b, which have the same bottom radius and different heights. The ring 32a and the upper half ring 32b are assembled in such a direction that the centers of their bottom surfaces coincide with each other and their bottom surfaces abut against each other. The lower half wheel 32a and the upper half wheel 32b are rotatably supported by a support shaft 32r passing through the center of each bottom surface and perpendicular to the bottom surface. Since the lower half wheel 32a and the upper half wheel 32b are not coupled, they can rotate independently around the support shaft 32r.

A truncated conical side surface 32as of the lower half ring 32a and a truncated conical side surface 32bs of the upper half ring 32b constitute an outer peripheral end surface of the second pressing ring 32. 32t is the vertex of the outer peripheral end face. As shown in the figure, in this example, the angle α ₂ formed between the truncated conical bottom surface of the lower half ring 32a and the side surface 32as, and the angle α ₃ formed between the truncated conical bottom surface of the upper half ring 32b and the side surface 32bs. are both 45 degrees, and the angle that is the sum of α ₂ and α ₃ , that is, the angle at which the outer peripheral end surface of the second pressing ring 32 protrudes in the radial direction over the entire outer periphery of the second pressing ring 32 is 90 degrees. It becomes.

As mentioned above, the angle of the entrance corner S _C on the construction surface S having an L-shaped cross section is usually 90 degrees, so that the angle at which the outer peripheral end surface of the second pressing ring 32 projects in the radial direction is 90 degrees. , the second pressing ring 32 securely contacts both the side surface 32bs of the lower half wheel 32a and the side surface 32bs of the upper half wheel 32b with the lower surface S _L and the rising surface S _S of the construction surface S, respectively. It can move along the inside corner _SC of S.

Further, the angle β ₂ formed by the plane P ₂ including the apex 32t of the outer peripheral end surface with the horizontal plane is the same as the angle α ₂ formed between the bottom surface of the lower half ring 32a and the side surface 32as, and is 45 degrees in this example. The angle β ₂ is not necessarily limited to 45 degrees, but is between the plane P ₂ including the apex 32t of the outer peripheral end surface of the second pressing ring 32 and the apex of the outer peripheral end surface of the first pressing ring 31 shown in FIG. The plane P ₁ including 31t is preferably on the same plane, and it is preferable that β ₁ =β ₂ .

The second pressing ring 32 may be made of any material as long as it can press and adhere the tape-shaped paving material to both the lower surface S _L and the rising surface S _S of the construction surface S having an L-shaped cross section. For example, it can be constructed using an appropriate material such as rubber, synthetic resin, or metal. However, considering that the construction surface S usually has some unevenness, the second pressing ring 32 should be made of at least elastic natural or artificial rubber, such as urethane rubber, at least on its surface. It is desirable to have one.

The paving material pressure adhering device according to the present invention is a combination of the above-described side part pressing device 1 for tape-shaped paving material and the tape surface pressing device 30 for tape-shaped paving material. The first frame 2 constituting the pressing device 1 and the second frame consisting of the inclined struts 33a, 33b, the upright struts 34a, 34b, and the connecting frame 35 constituting the tape surface pressing device 30 exist separately. They may be connected to each other, or they may be connected to each other.

C. 16 to 20, a method for press-applying a tape-shaped paving material using the above-mentioned side pressing device 1 and tape surface pressing device 30 will be described. I will explain. Note that in FIGS. 16 to 20, members that are not directly involved in the explanation are omitted.

First, as shown in FIG. 16, the paving material roll R is set at a predetermined position on the roll support 7 of the side pressing device 1. The paving material roll R is supported on the roll support body 7 with the roll support shaft 7r passing through the center gap thereof, and the lower side surface is in contact with the contact surface 7s. At this time, on the upper side surface of the paving material roll R supported on the roll support 7, a disc-shaped stabilizer plate is placed, which has a gap in the center that allows the roll support shaft 7r to pass through. The support of the paving material roll R by the roll support 7 may be stabilized. In addition, in the state shown in FIG. 16, the side pressing device 1 is at a predetermined pressing position where the side surfaces of the guide rollers 13a and 13b, _which are not shown in FIG. The side pressing surface of the side pressing roller 11 is urged downward by an elastic member 26 such as a coil spring, and is in contact with the upper corner _SE of the construction surface S.

Next, grasp the tip of the tape-shaped paving material T exposed on the outermost layer of the paving material roll R, and as shown in FIG. 17, pay out the paving material T from the roll R and press the side A tape-shaped paving material T is inserted under the roller 11 and placed at a position where the upper side Ts of the paving material T is sandwiched between the upper corner _SE of the construction surface S and the side pressing roller 11. Set. After that, in this state, the side pressing device 1 may be moved toward the back of the page.

FIG. 18 is a plan view showing a state in which the side pressing device 1 is moved from the state shown in FIG. 17 toward the back of the plane of the paper in FIG. As shown in FIG. 18, when the side pressing device 1 is moved in the direction of the arrow in the figure, the upper side portion Ts of the tape-shaped paving material T is moved between the side pressing roller 11 and the upper corner of the construction surface S. Since the paving material roll R is successively sandwiched and pressed between the S and _E , the paving material roll R rotates around the roll support shaft 7r in the direction shown by the arrow in the figure. At this time, since the vertical plane including the axis 7c of the roll support shaft 7r supporting the paving material roll R and the vertical plane including the axis 11c of the side pressure roller 11 are in a mutually parallel positional relationship, the tape The paving material T having a shape is successively fed out from the roll R without being twisted. As a result, the upper side portion Ts of the tape-shaped paving material T is pressed and adhered to the upper corner portion _SE of the construction surface S or its vicinity. This corresponds to the tape side pressing step in the pressure adhering method of the present invention.

When the tape side pressing step is completed, the tape side pressing device 30 is next applied onto the construction surface S where the upper side Ts of the paving material T is pressed and adhered to the upper corner _SE or its vicinity. The first pressing ring 31 is advanced in the direction ahead. FIG. 19 shows this state. That is, as shown in FIG. 19, when the first pressing wheel 31 is advanced on the construction surface where the upper side portion Ts of the paving material T is pressed and adhered to the upper corner _SE of the construction surface S, the pavement The work material T is pushed by the first pressing ring 31 whose outer peripheral end surface protrudes at an acute angle at a position between its upper and lower sides, and is sequentially pressed toward the inside corner S _C of the construction surface S, and the inside corner We will be in close contact with _SC . This corresponds to the first pressing step in the press sticking method of the present invention.

Next, the second pressing ring 32 of the tape surface pressing device 30 is placed on the construction surface S where the paving material T is pressed toward the inner corner _SC of the construction surface S at a position between the upper and lower sides of the pavement material T. Let it proceed. FIG. 20 shows this state. That is, as shown in FIG. 20, a tape-shaped paving material T is pressed and adhered to the upper corner _SE of the construction surface S with its upper side Ts, and is inserted at a position between the upper and lower sides. When the second pressing wheel 32 is advanced on the construction surface S that is being pressed toward the corner _SC , the portion of the construction surface _S of the paving material T facing the rising surface S The upper half ring 32b presses and adheres to the rising surface _SS , and the surface facing the lower surface _SL of the construction surface S of the paving material T is pressed against the lower surface _SL by the lower half ring 32a of the second pressing ring 32. , will be pasted. This corresponds to the second pressing step in the press sticking method of the present invention.

At this time, the upper half wheel 32b and the lower half wheel 32a can rotate independently around the support shaft, so even if there are some unevenness or unevenness on the construction surface S, the tape It is possible to press and adhere the paving material T having a shape to a construction surface S having an L-shaped cross section with little deviation.

As described above, according to the pressure adhesion method of the present invention, the upper side part of the tape-shaped paving material T is first pressure-adhered to the upper corner SE of the construction surface _S or its vicinity, and then , the part of the construction surface S of the paving material T facing the inner corner S _C is pressed toward the entrance corner _SC , and then the part facing the rising surface S _S and the lower surface S _L of the construction surface S of the paving material T is pressed. The _tape -shaped paving material _T can be pressed and adhered to the L-shaped cross-section construction surface S without shifting. It is something that can be done.

In addition, in the above-mentioned example, the tape surface pressing device 30 for tape-shaped pavement material has the first pressing ring 31 and the second pressing ring 32 connected to a common second frame, and presses the tape surface through the second frame. Although the case where they are integrated has been described, the first pressing ring 31 and the second pressing ring 32 do not necessarily need to be integrated. That is, the tape surface pressing device 30 for tape-shaped paving material may be composed of a first pressing ring 31 and a second pressing ring 32 that are provided separately.

According to the pressure pasting device and the pressure pasting method of the present invention, a tape-shaped paving material can be efficiently pressed and pasted onto a construction surface having an L-shaped cross section without the worker bending down. Therefore, it greatly contributes to improving work efficiency and reducing labor, and its industrial applicability is great.

1 Side pressing device for tape-shaped paving material 2 First frame 7 Roll support 7r Roll support shafts 7c, 11c Core 8 Tape guide rollers 9a, 9b First support mechanism 11 Side pressing roller 12 Second support mechanism 13a , 13b Guide rollers 16a, 16b Connection auxiliary members 17a, 17b Rotating blocks 18a, 18b Connection blocks 19a, 19b Support arm 30 Tape surface pressing device 31 for tape-shaped paving material First pressing ring 32 Second pressing ring P _R roll end Sectional plane S L-shaped construction surface S _L bottom surface S _C corner S _S rising surface S _E upper corner S _U upper surface T Paving material R Paving material roll W Width of paving material

Claims (3)

A first pressing ring rotatably supported around a support shaft, the first pressing ring having an outer peripheral end surface protruding at an acute angle in the radial direction over the entire circumference, and a rotation around a support shaft different from the support shaft. a second pressing ring rotatably supported by the second pressing ring, the outer peripheral end surface of which projects approximately at right angles in the radial direction over the entire circumference; and an outer peripheral end surface of the first pressing ring that projects at an acute angle. A plane including the apex and a plane including the apex of the outer circumferential end face of the second pressing ring protruding at a substantially right angle are on the same plane, and the outer circumferential end face of the second pressing ring protruding at a substantially right angle has a step. a second frame that supports the first pressing ring and the second pressing ring at an angle that makes contact with both a lower side surface of a construction surface having an L-shaped cross section and a rising surface rising from the lower side surface; A tape surface pressing device for a tape-shaped paving material, comprising moving wheels that support a second frame so that it can move on the lower surface of the step. The second pressing ring includes an upper half ring and a lower half ring each having a truncated conical shape with the same bottom radius, and the upper half ring and the lower half ring are combined with their bottom faces facing each other. The tape surfaces of the tape-shaped paving material according to claim 1, each of which is independently rotatably supported around a support axis of the second pressing ring that passes through the center of the bottom surface and is perpendicular to both bottom surfaces. Pressing device. 3. The tape surface pressing device for a tape-shaped paving material according to claim 2, wherein the angle formed by the bottom surface of the truncated cone and the side surface of the truncated cone of the upper half ring and the lower half ring is approximately 45 degrees.

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