JPS6125852B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paving material application device for smoothly leveling paving materials such as resin mortar and rubber chips at a paving site.

Generally, this type of construction equipment has a self-propelled or towed trolley, and supplies paving materials such as resin mortar from a hopper onto the surface to be paved while moving the trolley. It is configured to be compacted to a certain thickness using a screed provided at the rear of the hopper. In that case, in order to finish the paved surface more smoothly, it is necessary to spread the paving material supplied from the hopper uniformly in advance before compacting the paving material with the screed. For this reason, in conventional equipment, a height-adjustable squeegee plate is provided on the rear plate side of the hopper, and this squeegee plate scrapes off the paving material supplied from the hopper to obtain a predetermined spread thickness. There is. However, in the case of paving materials such as resin mortar and rubber chips using resin as a binder, the hopper 1 Paving material lumps are formed near the scraped portion of the squeegee plate 2 provided on the rear plate side, and as a result, the surface of the paving material spread by the squeegee plate 2 becomes wavy, resulting in a smooth and flat surface. The drawback was that it did not provide a clean surface. Furthermore, if the paving thickness becomes a thin layer of 5 mm or less, the paving material will be dragged by the squeegee plate 2, and there is a risk that it will roll up from the surface to be paved.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a paving material application device that can uniformly spread paving material supplied from a hopper onto a surface to be paved.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings.

This pavement material construction apparatus includes a frame body 10 that is made of rectangular tubular steel and has a rectangular shape. In this embodiment, the frame body 10 is pulled in the direction of the arrow shown in FIGS. 2 and 3 by a winding device such as a winch (not shown), and the frame body 10 is A pair of sled members 11, 11 made of steel with an L-shaped cross section are provided for holding the sled at a constant height and sliding it on the surface to be paved. in this case,
Although not shown in detail in the drawing, each sled member 1
1 is designed so that its installation width can be changed depending on the pavement width. The frame body 10 is provided with a hopper 12 for storing paving material, such as resin mortar, and a screed 13 for uniformly compressing and leveling the resin mortar supplied from the hopper 12 onto the surface to be paved. It is being

The hopper 12 consists of a front plate 14 arranged in a funnel-shaped manner, a pair of left and right side plates 15, 15, and a rear plate 16 provided opposite to the front plate 14.
In this case, the rear plate 16 is configured as a first squeegee plate that is attached to the side plate 15 via a bracket 17 and a screw shaft 18 so that its height can be adjusted. Further, in this invention, the first
A second squeegee plate 20 is installed behind the squeegee plate 16.
is provided. That is, this second squeegee plate 20 is attached to the rear extension portion of the side plates 15, 15 via a height adjustment screw shaft 22 with a handle 21, as shown in the figure. As a result, a chamber 23 is formed between the first squeegee plate 16 and the second squeegee plate 20, and a mesh lid 24 made of wire mesh or the like is provided at the bottom of the chamber 23. Note that depending on the type of paving material used, a shutter member may be provided to adjust the degree of opening of the opening of the hopper 12.

The screed 13 is suspended on the frame body 10 via a height adjustment screw shaft 26 with a handle 25. In this embodiment, the screed 13 has a support frame 27 formed on its rear side, on which a vibrator 28 is provided.
In this case, the support frame 27 and the second squeegee plate 20
are operatively connected to each other via a connecting rod 29, whereby the vibrations of the vibrator 28 are
The information is transmitted to the squeegee plate 20 of. However, different from this, the vibrator may be attached to the second squeegee plate 20 itself.
Further, a step board 32 for a worker to board is attached to the support frame 27 via a pair of arms 31, 31 extending rearward. Although not shown, treads similar to those described above are actually provided in front of the frame main body 10, and the construction is such that a worker can step on these treads to perform tasks such as replenishing resin mortar. There is.

On the other hand, this pavement material application apparatus is provided with a guide means for guiding the frame body 10 in a predetermined direction when being towed by a traction device such as a window. In this embodiment, as shown in FIG. 4, the guide means includes a guide rail 33 having an inverted T-shaped cross section, and a guide rail 33 attached to the frame body 10 so as to cooperate with the guide rail 33.
It consists of a pair of guide rollers 34, 34. In this case, each guide roller 34 is attached so as to sandwich the guide rail 33 from both sides via a support arm 35, so that even if the frame body 10 moves slightly up and down, it will not come off the guide rail 33. It's summery. In addition, the frame body 10
is equipped with three movable wheels 37 provided on both sides of the front left and right sides and at the rear center portion.
As shown in FIG. 5, this movable wheel 37 is attached to the lower end of an inner cylinder 39 that moves up and down using an outer cylinder 38 fixed to the frame 10 as a guide. It is configured to be selectively moved between an activated position and an inactivated position. That is, the lever 40 is connected to the inner cylinder 39 via a pin 43 inserted into a slit 42 of the outer cylinder 38, and one end of the lever 40 is pivotally attached to a rib member 41 of the frame body 10. On the other hand, the frame body 10 is provided with a rib member 44 having a locking groove 45 for locking the other end side of the lever 40. Therefore, the movable wheel 37 is set to the operating position for lifting the frame body 10 by forcibly pushing down the lever 40 and locking it in the locking groove 45; Remove from rib member 4
By placing it on the upper edge of 4, it is retracted vertically and placed in the inoperative position.

Next, the operation of this invention will be explained. First, the heights of the first and second squeegee plates 16 and 20 are adjusted by operating the adjustment nut 19 of the screw shaft 18 and the handle 21 of the screw shaft 22. This adjustment is performed in relation to the desired thickness of the paving layer. In this case, the distance between the first squeegee plate 16 and the surface to be paved is set large, while the distance between the second squeegee plate 20 and the surface to be paved is set large. Set the interval to be smaller than that. And Hotupa 12
After resin mortar is deposited and stored inside the frame body and the vibrator 28 is started, the frame body 10 is pulled in the direction of the arrow shown in the figure by a winch (not shown). Note that the worker climbs on the footboard 32 and moves together with the device in order to replenish materials to the hopper 12. The frame body 10 is guided by guide means consisting of guide rails 33 and guide rollers 34 and moves along a predetermined path, and along with this, the hopper 12
A predetermined amount of resin mortar is sequentially and continuously supplied onto the surface to be paved from within. In that case, the resin mortar is first roughly spread by the first squeegee plate 16, and then more finely spread by the second squeegee 20. That is, even if a lump of resin mortar is formed near the lower end of the first squeegee plate 16 as explained in FIG. For unevenness, use the second squeegee plate 2
In this way, the resin mortar is evenly spread on the surface to be paved. In this regard, the second squeegee plate 20 includes a connecting rod 2.
Since the vibration from the vibrator 28 is transmitted through the vibration exciter 9, the resin mortar is spread evenly and evenly.
Also, the resin mortar is applied to this second squeegee plate 20.
There is almost no risk of it getting stuck and being dragged.
As the amount of the resin mortar scraped off by the second squeegee plate 20 gradually increases, the amount of resin mortar scraped off is transferred to the mesh lid 2.
Although the resin mortar protrudes onto the hopper 12 and is deposited in the chamber 23, this resin mortar is returned to the hopper 12 by a worker standing on the footboard 32. In this case, since the chamber 23 is provided with a mesh lid 24,
During the scooping operation, the paving material is not disturbed more than necessary. As described above, the resin mortar spread to a uniform thickness by the second squeegee plate 20 is flattened and compacted by the subsequent screed 13. In this case, the screed 13 includes:
Since the vibrations from the vibrator 28 and the weight of the worker on the treadle 23 are added, the synergistic action of these causes the resin mortar to be finished as a paving layer with a denser and smoother surface. It will be done. Furthermore, since the pavement width can be arbitrarily changed by adjusting the interval between the pair of sled members 11, 11, it is particularly suitable for paving the road surface of an elevated track running on rubber tires. On the other hand, when the above-mentioned pavement layers are laid in parallel in sequence, gaps are created by the sled member 11 at the joints between the pavement layers, but since the construction is such that the worker can stand on the treads 32, the frame As the main body 10 advances, the operator can work to fill in the gaps one by one. After the paving work is completed, the frame body 10 is supported by the three movable wheels 37 by pushing down each lever 40 and locking it in the locking groove 45, so this device can be easily moved and transported. be able to.

In the above embodiment, the second squeegee plate 20 may be vibrated in the left-right direction.
Regarding the screed 13, instead of the above-mentioned vibrating type screed, a so-called "fixed lumber type" screed that moves in the left and right direction, or a screed that is rotated faster than the advancing speed of the frame body 10, is used. Shear roller screeds can also be used.

As is clear from the description of the embodiments described above, according to the present invention, a first squeegee plate and a second squeegee plate, each of which is height adjustable, are provided behind the hopper opening, and the paving that is supplied from the hopper is Roughly level the material with the first squeegee plate, and
By using the squeegee plate to spread the pavement more finely, the paving layer that is finally compacted by the screed can be finished more densely and smoothly. In addition, by making the second squeegee plate vibrate with a vibrator,
It can prevent high viscosity resin mortar, rubber chips with resin as a binder, etc. from adhering to the squeegee plate, and even if the pavement thickness is a thin layer of 5 mm or less, the paving material will not be dragged by the squeegee plate. There is little risk of it getting lost. On the other hand, the frame body is equipped with a treadle that the worker can stand on, making it easy to replenish materials to the hopper and fill in gaps between adjacent pavement layers. . Furthermore, by using a moving wheel, it can be easily moved to the construction site, which is convenient.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view schematically showing a conventional pavement material construction state, FIG. 2 is a plan view of a pavement material construction apparatus according to the present invention, and FIG. 3 is a cross-sectional view taken along the line - in FIG. 2. Figure 4 is a left side view of this device, Figure 5
The figure is a perspective view showing a portion of the moving wheel. In the figure, 10 is a frame body, 11 is a sled member, 1
2 is a hopper, 13 is a screed, 16 is a first squeegee plate, 20 is a second squeegee plate, 23 is a chamber,
24 is a net lid, 28 is an exciter, 32 is a footboard, 33 is a guide rail, 34 is a guide roller, 37 is a moving wheel, and 40 is a lever.

Claims (1)

[Scope of Claims] 1. A paving material application device that spreads a paving material such as resin mortar or rubber chips while moving over a surface to be paved, comprising a frame body and a frame body that moves on the paved surface. and a guide means for guiding the frame main body along a planned course, the frame main body includes a pair of sled members arranged parallel to each other along the direction of movement of the frame main body, and a pair of sled members disposed in parallel along the traveling direction of the frame main body, and a guide means for guiding the frame main body along a predetermined course. a hopper that stores material and has an opening facing the surface to be paved; a first squeegee plate configured to be height adjustable as a rear plate that defines the opening of the hopper; a height-adjustable second squeegee plate disposed behind the first squeegee plate so as to form a chamber therebetween; a vibrating means for vibrating the second squeegee plate; A screed is provided for compressing and compacting the paving material leveled by the second squeegee plate, and the second squeegee plate has a lower height than the first squeegee plate with respect to the paved surface. 1. A pavement material construction device, characterized in that the device is set at a position where: 2. The paving material construction apparatus according to claim 1, wherein a mesh cover made of wire mesh or the like is attached to the bottom of the chamber. 3. The pavement material construction apparatus according to claim 1, wherein the screed is provided with a vibrator. 4. The paving material construction apparatus according to claim 1 or 3, wherein a step board for a worker to board is connected to the screed via an arm member.