JPS5880006A - Apparatus for uniformly laying rubber chip - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION In constructing an elastic floor structure for sports such as a tennis court, a gymnasium floor, or a competition track, which includes an elastic layer, the rubber chips forming the lower layer of the structure are coated in a predetermined manner. This invention relates to a portable rubber chip rug laying device for uniformly and efficiently laying the rug.

Rubber chips are suitable for providing elasticity to the floors of athletic facilities, etc., and the elastic flooring has the advantage of being easy to maintain and manage, but there are the following problems when implementing it. there were. In other words, taking a tennis court as an example, the area required to construct one side of the court is approximately 670g1, which is even if you were to construct all four sides! ! Since the area is relatively small at approximately 2,408 m, it is too small to introduce large-sized paving machines such as those conventionally used in road paving work, and it is difficult to install a type of paver that can be driven by a belt. It is difficult to achieve a seamless finish between paved surfaces.

Therefore, in most cases, the rubber chip layer is laid by hand, which tends to result in uneven thickness of the rubber chip layer.In addition, workers are forced to work in a half-hearted manner, resulting in severe fatigue and reduced efficiency. It was bad. Furthermore, the surface of rubber chips is usually coated with a viscous paint like urethane resin, so in order to spread it evenly, #! A high degree of skill is required to apply an appropriate shearing force evenly using the troweling tool, which results in differences in finishing accuracy depending on the skill level of the worker, and rubber chips on the surface of the trowel. There were various problems in terms of construction efficiency and finish accuracy, such as easy adhesion (it was necessary to stop the work each time to remove the adhesion).

Therefore, an object of the present invention is to smooth and imitate comchips without manual effort when forming an elastic floor made of rubber chips in a relatively small-scale facility such as a tennis court.
To provide a small and light portable rubber chip matting device that can efficiently spread SC, can be disassembled and assembled, and can be easily carried up when constructing a rooftop sports field, etc. There is a particular thing.

Hereinafter, the present invention will be described in detail according to embodiments shown in the accompanying drawings.

As shown in FIGS. 1 and 2, this rubber chip covering device includes a rectangular frame 1 made of steel and having a U-shaped cross section.

In this embodiment, the frame 1 is pulled in the direction of the arrow shown in the figure through a wire lobe 2 by a pulling device such as a winch (not shown), and the frame 1 is held at a constant height on the lower surface thereof, and A pair of tower members 3 and 4 made of square tubular steel are provided for sliding on the paving surface. The frame 1 includes a hopper 5 for storing rubber chips coated with a viscous binder made of urethane resin, and a screed 6 for uniformly spreading the rubber chips supplied from the hopper 5 over the surface to be paved. It is provided.

As shown in detail in Fig. 3 and Fig. 4, the hopper 5 consists of a front plate 1 [7] arranged in a funnel-like manner with an inclination, a rear plate 8 facing the front plate 8, and a rear plate 8 disposed between them. The hopper opening defined by these side plates 9 and 1o is provided with a relatively coarse sieve plate 11.

In this case, one side plate 9 is also used by the inner wall of the side frame portion of the frame 1, but the other side plate 10 is the existing one): 1
' A f It is arranged at an angle so as to supply rubber chips along the boundary line with the hopper.0 In addition, the rear plate 8 is a squeegee plate that adjusts the thickness of the rubber chips supplied from the hopper 5. It is configured as. That is, the rear plate 8 is connected to a height adjustment screw shaft 13 having a handle 12, as shown in FIG. installed. In this embodiment, an excitation element 1iiF14 is attached to the rear plate 8 which is a squeegee plate, and one side of the sieve plate 11 is held near the lower part of the rear plate 8. Therefore, When the vibrator 14 is activated,
The vibration is transmitted not only to the rear plate 8 but also to the sieve plate 11, so that the rubber chips in the hopper are smoothly supplied onto the surface to be paved through the sieve plate 11 without causing the so-called bridging phenomenon. 8 to a predetermined thickness. Further, in relation to the hopper 5, a shutter plate 15 for adjusting the opening degree of the hopper is slidably attached to the frame 1.

This shirt shirt plate 15 is provided with a pair of operating levers 30, 30 that extend forward through the frame 1. In addition,
In the embodiment, the rear plate 8 of the hopper 5 is configured as a squeegee plate, but unlike this, a height-adjustable squeegee plate may be provided between the hopper 5 and the screed 6.
It is also possible to configure the rear plate (squeegee plate) 8 in a so-called "fixed wood" type in which the rear plate (squeegee plate) 8 is made to vibrate in the left-right direction perpendicular to the direction of movement of the frame 1. In this way, by applying vibration to the squeegee plate or making it perform a sliding motion, even when the thickness of the rubber chips is thin and the viscosity of the binder resin is particularly high, the squeegee plate will pull the material apart and cause it to curl up. There are almost no such things. On the other hand, regarding the sieve plate 11, it may be omitted depending on the case.

To explain the bridge members 3 and 4, one bridge member 3
extends over the entire length of the frame 1 in the front and rear direction,
The other bridge member 4 facing the existing rubber chip waste container extends rearward from the front of the frame 1 and terminates at the hopper 50 portion. In this case, in order to seamlessly finish the boundary line between bridge #4 and the existing rubber chip waste container,
The overlap width with that! In consideration of the above, it is provided so as to be located inward of the frame 1, that is, approximately on the long arc line of the side edge of the hopper opening formed by the side plate 10 of the hopper 5 (see No. xWJ and FIG. 3).

In this embodiment, each bridge member 3, 4 is made of square tubular steel as described above, but it may also be made of L-shaped angle steel. In any case, such bridge members 3,
4, it is possible to finish the rubber chips into a smooth flat surface while correcting the narrow unevenness without being affected by unevenness or unevenness of the paved surface in the process of advancing the frame 1. Compared to the case of a rotating wheel, there is almost no risk of resin or dust from the brimer getting stuck on the circumferential surface of the wheel.

The screed 6 is attached to the frame 1 via a hanging attachment 16. This attachment 1
6 consists of a pair of horizontal beams 17.degree. 17 parallel to each other and a pair of vertical beams 18.degree. 18 installed between them. The screed 6 is made of a plate member whose front and rear edges are curved, for example, slightly upwardly, and is height-adjusted to the vertical beam member 18 via four support frames 19 planted at the four corners of the back surface. Possibly installed. That is, each support frame 19
is composed of screw shafts ↑, and by rotating the nuts 20 screwed into them, the height of the screed 6 relative to the surface to be paved is adjusted, and as shown in FIG. It is set to slope upward as it reaches the leading edge. In this case, the front and rear inner edges of the screed 6 are curved upward, but this is optional. Note that a spring 21 is installed between the vertical beam 18 and the screed 6. Being scissored. Further, the screed 6 has a support frame structure 24 on its back surface, which is composed of a pair of vertical frames 22, 22 arranged in the front and rear and a mounting plate 23 installed between them. A vibrator 25 is attached. Note that the screed 6 is formed wider than the opening of the hopper 5, and the vertical vibration caused by the vibrator 2S causes rubber chips supplied from the hopper 5 and spread to a thickness T by the rear plate 8 to be used in the existing construction. Rolling was carried out including the boundary line with the rubber chip waste, and the required thickness t was not evenly spread. In this case, since a highly viscous resin is generally used as the binder, rubber chips tend to adhere to the surface of the screed 6. Therefore, in the present invention, a heating means (not shown in the drawings) for heating the screed 6 is provided. This heating means may be, for example, a heating burner that blows hot air onto the back side of the screed 6 to heat it, or an oil path filled with high-temperature oil, and by heating the screed 6 in this way, the binder resin The viscosity of the material decreases and the "trowel slippage" improves, resulting in a smoother leveled surface. Particularly in the winter, the viscosity of the resin increases, so this heating has a great effect. The heating temperature is preferably within a range from about 50°C to 150°C, for example, within a range that does not cause thermal decomposition of the resin. As mentioned above, since the other bridge member 4 is arranged inward of the frame 1 and terminates at the hopper 5,
In this embodiment, a height adjustment rod 26 that compensates for this and holds the rear part of the frame 1 at a predetermined height
is provided. This height adjustment rod 26 is attached so as to extend from one of the vertical beams 18 through a through hole 28 bored in the screed 6 and onto the surface to be paved. A hemispherical finger body 27 is formed. However, in relation to the weight balance of each component attached to the frame 1, if the rear part of the frame 1 is stably held at a constant height position above the paved surface, the height should be adjusted as described above. The adjustment rod 26 may not be provided. Furthermore, between the collar 5 and the screed 6,
A prevention plate 29 is provided below the frame portion of the frame 1 facing the existing rubber chip scrap input side, as shown in chain lines in Fig. 1, to prevent soldering, thereby supplying rubber chips from the hopper 5 to the boundary line with the existing rubber chip holder. This prevents the rubber chips from expanding unnecessarily beyond the overlap width l.

Furthermore, this rubber chip covering device is provided with a guide means for linearly guiding the frame 1 when it is moved to the side of a vehicle by a traction device such as a winch.

In this embodiment, the guide means cooperates with a guide rail 31 having an inverted U-shaped cross section and installed parallel to the boundary line of the existing rubber chip member at a predetermined interval. 1 attached to the frame 1
It consists of a pair of guide rollers 32 and 32. In this case, each guide roller 32, 32 is attached so as to sandwich the guide rail 31 from both sides through the support arm 33, so that it will not come off the guide rail 31 even if the frame 1 moves slightly up and down. It has become. 6 and 7 show a modified embodiment of the guide means. According to FIG. 6, the guide means has an inverted U-shaped cross section and slides while holding a guide rail 31 in place of the guide roller 32. A slider 34 is used. On the other hand, in the embodiment shown in FIG. 7, the flange portion 35 of the guide rail 31
A second guide rail 36 called a spacer rail is formed to have a wide width and hold the lower surface of the frame 1 at a predetermined height on the flange portion 35, and is formed so that the frame 1 slides thereon. is established).

Therefore, one of the bridge members 3 can be omitted.

Next, the present invention will be explained in detail. First of all, No. 1 and No. 1.
The height of the rear plate (squeegee plate) 8 of the hopper 5 is adjusted by adjusting the height of the rear plate (squeegee plate) 8 of the hopper 5 and the height of the hopper 5 is controlled by the shutter plate 15 via the control levers 3 o and go. Adjust the opening degree. And hopper 15
A layer of rubber chips coated with a viscous binder made of urethane resin is placed inside, and after starting each of the vibrators 14 and 2B, the frame 1 is pulled in the direction of the arrow in the figure via the wire rope 2 by a winch (not shown). do. This allows the frame 1 to move between the guide rail 31 and guide roller 32°32.
A predetermined amount of rubber chips is sequentially supplied onto the surface to be paved from inside the hopper δ through the sieve plate 11.

In this case, the rear plate 8 of the hopper 5 and the sieve plate 11 are subjected to vibration @1
4, the rubber chips are fed smoothly without causing a bridging phenomenon in the hopper 5, and the rubber chips are fed smoothly by the rear plate 8 of the hopper 5, which is configured as a squeegee plate. spread over the surface.

After that, the screed 6 with the vibrator 25 located at the rear
As a result, the material is rolled to a required thickness as shown in FIG. In this way, a uniform and smooth comb layer is formed in the form of a band on one surface to be paved, and this is successively placed next to each other to cover the entire surface to be paved. According to this method, it is possible to seamlessly finish the boundary line between the existing rubber chip holder and the existing rubber chip holder. That is, since the other bridge member 4 of the frame 1 terminates at the hopper 5 as described above, if it is placed along the boundary line with the existing rubber chip member, the side plate 1 of the hopper 5
The opening side line by 0 is located exactly on the boundary line, and an appropriate amount of rubber chips is supplied from the hopper 5 toward the boundary line. When this rubber chip is spread by the rear plate 8 of the hopper 5, it is spread while appearing to dry and spread so as to be on the existing rubber chip layer A side, and then it is rolled and compacted by the screed IJ-drol. Ru. In this way, a seamless finish can be achieved between adjacent rubber chip layers.

In the embodiment described above, the screed 6 is
The screed 6 shown in FIGS. 8 to 10 can use various screeds described below in the present invention. Each has a bearing portion 40 formed on its front edge, and the horizontal rotation support shaft 4 is installed between the side frame portions of the frame 1 via this bearing 940.
It is pivoted to 1. In Figure #18, in addition to the vibration exciter 25 on the back m side of the screed 6, a weight 42 applies a synergistic compaction force to the rubber chip placed on it by the vibration of the vibration exciter 25 and the weight of the 1st 42. A denser rubber chip layer can be obtained. FIG. 9 shows a modification related to FIG. 8, in which the screed 6 is loaded with a weight 42, and depending on the viscosity of the binder and the leveled thickness of the rubber chips, only the weight 42 may be applied. The rubber chip layer can be paved smoothly. In addition, the above weight 4
The weight of No. 2 can be selected from a variety of options depending on construction conditions, etc. FIG. 10 shows an example of a screed constructed in a slatted wood pattern. That is, this screed 6 is operatively connected to a disc crank mechanism 44 that converts the rotational movement of a motor 43, which is a driving source, into linear motion.

Therefore, this screed 6 smoothly spreads the rubber chips while moving reciprocatingly in the left and right directions perpendicular to the direction of movement of the frame 1 using the rotating support shaft 41 as a guide rail. Of course, a vibrator or weight may be placed on this screed 6 as shown in FIGS. 8 and 9. Further, referring to FIGS. 11 and 12, a shear dredging roller type screed is shown. This screed 6 consists of a rotating roller rotatably supported by a frame, and by making the rotation speed of the roller by a motor 45 faster than the advancing speed of the frame 1, shearing force is applied to the rubber chip paved surface. Spread it evenly. Note that the rotation shaft 46 of this roller screed 6
As shown in FIG.
By operating a screw shaft 49 with a handle attached to the bearing member 48, the height of the roller screed 6 can be adjusted according to the thickness of the rubber chip layer. On the other hand, in the embodiment shown in FIG. 14, a tapping plate 50 is provided which acts to lighten the surface of the rubber chip floor leveled by the screed 6. In other words, as mentioned above, the rubber chips are compressed and hardened by the screed 6, but when they try to recover slightly due to their own elasticity immediately after escaping from the trailing edge, from a microscopic perspective, the corner of each chip is There is a phenomenon in which the pavement protrudes from the surface of the layer, and this may cause the pavement surface to exhibit a dull, grained pattern. The above-mentioned tapping plate 5G is for correcting this and finally finishing the paving surface neatly. It is connected to a solenoid device 53. Once upon a time, tapping board 5
0 is suspended to a predetermined height by the intermittent pulling action of this solenoid device 1j53, and falls onto the rubber chip layer by the 11-layer, and the corner part protrudes due to the suppressing action like a light tap at that time. Each of the rubber chips is corrected to lie flat against the layer surface. Although only one solenoid device is shown in this figure for the sake of convenience, in reality, the solenoid devices are provided on both side frame portions of the frame 1, respectively. In addition, in the above embodiment, a method of towing the frame 1 with a winch or the like is adopted, but it is possible to attach a traveling means such as a belly belt or wheels to the side of the frame 1, that is, the side where the guide means is provided. The device itself can also be self-propelled.

As is clear from the description of each of the embodiments described above, the present invention has a relatively small and simple structure, and can efficiently form a rubber chip layer on a relatively small floor area such as a tennis court. Furthermore, it is possible to provide an apparatus suitable for leveling the material extremely smoothly without creating seams or the like. Furthermore, when transporting to a construction site, particularly a rooftop playground, etc., unlike conventional paving equipment, each component can be disassembled and transported, making it easy and convenient to handle.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a rubber chip matting device according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along line 1-'I in Fig. 2, and Fig. 4 is a hopper of this device. 5 is a schematic sectional view showing the screed portion of FIG. 1; FIGS. 6 and 7 are drawings showing modified examples of the guide means; FIGS. 8 to 13 The figure, which is different from that in FIG. 1, is a perspective view showing an embodiment in which a tapping plate is provided at the rear of the screed. In the figure, 1 is a frame, 2 is a wire loaf, s a 4 is a bridge member, 5 is a hopper, 6 is a screed, 7 is a front plate, 8 is a rear plate (squeegee plate), 1o is a side plate, 11 is a sieve plate, 14 ，
25 is a vibrator, 26 is a height adjustment shaft, 31 is a kite rail, 32 is a kite roller, 34 is a slider, 42 is a weight,
50 is a tapping board. Patent applicant Sumitomo Rubber Industries Co., Ltd. Patent attorney Takuya Otori 4 Figure 5 Figure 6 Figure 7 Figure 8 7 Procedural amendment (voluntary) Patent Office Shima, December 2, 1980 1) Haruki 1. Indication of the case Patent application filed on November 9, 1949 (2) λ Name of the invention Paving shears material matting device 3. Person making the amendment Relationship to the case Patent applicant 4. Agent Address: 102 Columns 8 for “Detailed explanation of drawings” and “Brief explanation of drawings”
, Contents of the Amendment As shown in the attached sheet, 1, the name of the invention is corrected to "Paving material covering device." 2. The scope of claims is amended as shown in the attached sheet. 3. In the specification, on the 5th line of page 3, add the sentence ``new paving material'' after ``rubber chips.'' 4. In the same book, on the 6th line of the same page, "rubber chip covering device" is corrected to "paving material covering device." 5. Same book, same page #! At the beginning of the sentence on line 8, add ``lko r*sko'' 0 6. In the same book, wJ4 Negative line 16, add ``for example'' after ``in the facility''. 7. In the same book, on page 5, line 1 and line 6 of the same page, "rubber chip covering device" is corrected to "paving material covering device". 8. In the same book, page 11312, line 6, "Comchip carpeting device" is corrected to "paving material covering device." 9. Same book, page 19, line 3 F...I can do it. ” and then add the following sentence: [Furthermore, in the above embodiment, the leveling operation was explained using rubber chips as an example, but this device can also be used for leveling work of other paving materials such as resin mortar. Of course, it is not necessary to provide the sieve plate 11 at the hopper opening when the hopper is in situ. 10. In the same book, on the 7th line of the same page, the term ``rubber chip layer'' is corrected to ``a floor layer made of rubber chips.'' 011. In the same book, on the 7th line of the same page, ``Rubber chip matting device'' is changed to `` "Paving material covering device" is corrected. Attachment 2. Claims (1) An apparatus for leveling paving materials such as rubber chips in parallel and adjacent to each other while moving over a surface to be paved, comprising: a frame; a moving means for moving the frame on a paved surface; and a guiding means for guiding the frame along a predetermined course when the frame moves; A pair of bridge members, a hopper that stores the paving material and has an opening facing the surface to be paved, and a ski that spreads the covering material to a predetermined spreading thickness. A device for laying paving material, characterized in that a screed with a vibrator is provided behind the squeegee plate and is equipped with a vibrator for compacting the paving material. (2) Adjacent existing paving material Claim 1, wherein the one bridge member disposed on the boundary line side with the hopper opening is configured to be shorter than the other bridge member so as to terminate near the hopper opening. Paving material laying device according to claim 1. (3) Claim 2, wherein the one bridge member is located directly below or inside one side edge of the hopper opening. Pavement U leveling device according to claim 1. (4) Paving material spreading device according to claim 1, 2 or 3, characterized in that the screed is provided with heating means. (5) The 1111 leveling device according to claim 1, characterized in that a vibrator is attached to the squeegee plate. (6) The squeegee plate is arranged in a direction in which the frame moves. 6. The paving material covering device according to claim 1 or 5, characterized in that the device reciprocates perpendicularly to the paved surface and parallel to the paved surface.

Claims (6)

[Claims] (1) A device for leveling elastic floor layers made of rubber chips in parallel and adjacent to each other while moving over the surface to be paved, comprising a frame and a moving means for moving the skeleton frame on the surface to be paved. , a guide means for guiding the frame along a predetermined course when the frame moves, and the frame includes a pair of left and right elm members arranged parallel to the direction of movement of the frame, and a guide means for guiding the frame along a predetermined course when the frame moves; store the chips, and
a hopper that opens an opening toward the surface to be paved;
A rubber chip characterized by being provided with a squeegee plate that spreads the rubber chips supplied from a skeleton hopper to a predetermined spreading thickness, and a screed with a vibrator that is located behind the squeegee plate and that presses and hardens the rubber chips. Rug equipment. (2) One of the bridge parts and the material placed on the boundary line side with the adjacent existing rubber chip layer is located near the hopper opening.
2. The rubber chip matting device according to claim 1, wherein the end of the bridge member is shorter than the other bridge member. (3) The rubber chip matting device according to claim 2, wherein the one elm member is located directly below or inside one side edge of the hopper opening. . (4) The rubber chip covering device according to claim 1, 2 or 3, characterized in that the screed is provided with heating means. (5) The rubber chip covering device according to claim 1, wherein a vibrator is attached to the squeegee plate. (6) The squeegee plate reciprocates perpendicularly to the traveling direction of the frame and parallel to the paved surface. Rubber chip matting device ◇