JP2022143127A - Sweeper for construction site - Google Patents

Abstract

To provide a sweeper suitable for use at a building site.SOLUTION: A sweeper 1 has front and rear wheels for traveling and is equipped with a sweeper body 3 that scrapes up construction waste while self-traveling on the floor surface and a dust box that contains the scraped up construction waste. The dust box is detachably mounted on the sweeper body 3. A pedestal 43 is attached to the rear end face of the dust box for vertically placing the dust box removed from the sweeper body 3 alone and for erecting the dust box with the sweeper body 3 while it is attached to the sweeper body 3. A handle 33 is fixed to the upper surface of the dust box, and carrying wheels 46 are mounted on the pedestal to carry the dust box detached from the sweeper body 3 independently by gripping the handle 33, and to carry the sweeper body 3 with the dust box while it is attached to the sweeper body 3.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to sweepers for construction sites.

Conventionally, there are various autonomous sweepers. Many sweepers primarily pick up and collect relatively fine and light debris, such as dust on floor surfaces. On the other hand, the garbage (construction waste) generated at construction sites includes not only dust, but also relatively large pieces such as concrete chunks, wood scraps, metal pieces, metal scraps, glass pieces, and glass scraps. Some are relatively heavy.

Therefore, it has been difficult to collect and store these construction wastes by suction.

In addition, the amount of construction waste is so large that the volume of the conventional sweeper's dust box is quickly filled. Even if a large-capacity dust box is provided, the dust box full of construction waste becomes very heavy, and it is not easy to transfer the construction waste from the dust box to the garbage collection site. During construction work, it is necessary to move the sweeper to a place away from the work site, and it is not easy to move the heavy and large sweeper manually.

In this way, a sweeper corresponding to this is desired at construction sites.

A sweeper suitable for use on construction sites is desired.

The sweeper according to this embodiment has front and rear wheels for traveling, and includes a sweeper body that sweeps up construction waste while self-propelled on the floor surface, and a dust box that stores the scraped construction waste. A pair of disc brushes having bristle bristles forming a truncated conical shape are positioned in front of the sweeper body in the traveling direction, and the bristles partially overlap each other across the center line of the sweeper body and are perpendicular to the floor surface. installed with the axis of rotation tilted forward with respect to a straight vertical line. A sweeping plate is provided in the sweeper body so as to partially overlap the rear portion of the disk brush and to follow the bristles of the disk brush. In the sweeper body, a cylindrical roller is provided to send backward the construction waste that has been swept up along the upper surface of the sweeping plate by the disc brush, and to collect dust on the floor surface. A brush is installed. The dust box has a box shape with a receiving port opened in the upper part of the front plate, and receives the construction waste sent out by the roller brush and the collected dust from the receiving port. It is detachably attached to the sweeper body behind the roller brush so as to drop into the dust box. A pedestal is attached to the rear end surface of the dust box for placing the dust box removed from the sweeper body upright independently, and for placing the dust box upright together with the sweeper body while attached to the sweeper body. A handle is fixed to the upper surface of the dust box. By holding the handle, the dust box removed from the sweeper body can be carried alone, and the sweeper body can be moved to the dust box while attached to the sweeper body. The pedestal is equipped with transport wheels for transporting with it.

FIG. 1 is a perspective view of a sweeper according to this embodiment. 2 is a side view of the sweeper of FIG. 1; FIG. 3 is a front view of the sweeper of FIG. 1; FIG. 4 is a cross-sectional view taken along line EE of FIG. 3. FIG. FIG. 5 is a schematic cross-sectional view taken along line EE of FIG. 6 is a schematic cross-sectional view showing a state in which the dust box is removed from the sweeper body of FIG. 1. FIG. FIG. 7 is a diagram showing a state in which the handle and base of the sweeper of FIG. 1 are unfolded. FIG. 8 is a schematic cross-sectional view showing how the handle and base of the sweeper of FIG. 1 are deployed. 9 is a view showing how the dust box is removed from the sweeper body of FIG. 1. FIG. 10 is a diagram showing a state in which the dust box is completely removed from the sweeper body of FIG. 1. FIG. 11A and 11B are diagrams showing an upright resting posture and a transporting posture of the dust box shown in FIG. 1 alone. FIG. 12 shows the sweeper of FIG. 1 in an upright resting position and a carrying position.

A construction site sweeper according to the present embodiment will be described below with reference to the drawings.
1 to 3 show the appearance of the sweeper 1 according to this embodiment, FIG. 4 shows a cross-sectional view taken along line EE of FIG. 3, and FIG. 5 shows a schematic cross-sectional view of the sweeper 1 according to this embodiment. there is The sweeper 1 moves on the floor surface of the construction site by itself, and sweeps relatively large and relatively heavy objects such as concrete lumps, wood scraps, metal pieces, metal scraps, glass pieces, and glass scraps scattered on the floor surface. It has a sweeper body 3 for raking up garbage (construction waste). The sweeper body 3 is detachably fitted with a dust box 5 for storing construction wastes raked up by the sweeper body 3 (see FIG. 6).

The sweeper body 3 has a chassis 15 . On the left and right sides of the chassis 15, front and rear drive wheels 7 and 9 for self-propelled use are provided. A crawler belt (crawler) 11 is stretched over the front and rear drive wheels 7 and 9 so that the vehicle can preferably travel on uneven ground such as a construction site. The sweeper main body 3 travels in the traveling direction toward the left side of the paper surface in FIGS.

A pair of motors 19 are attached to the front portion of the sweeper body 3 in the direction of travel, with their drive shafts (rotational shafts) DS inclined forward, for example, by 27° with respect to a vertical line perpendicular to the floor surface in a side view. Drive shafts DS of a pair of motors 19 are connected to a pair of disk brushes 17 each having flexible synthetic resin brush bristles planted on a base material 18 in a truncated cone shape. When the sweeper 1 is grounded on the floor, the brush bristles in front of the disc brush 17 are curved and brought into close contact with the floor. The pair of motors 19 are arranged at intervals such that the pair of disk brushes 17 partially overlap each other with the center line CL of the sweeper body 3 interposed therebetween in plan view. A motor driver (not shown) rotates the pair of disk brushes 17 in opposite directions in a plan view so as to sweep the construction waste toward the center line CL. The disk brush 17 on the left side rotates clockwise, and the disk brush 17 on the right side rotates counterclockwise.

Inside the sweeper body 3 , behind the pair of disk brushes 17 , a sweeping plate is partially overlapped with the rear part of the pair of disk brushes 17 and along the bristle tip surfaces of the pair of disk brushes 17 . 21 is tilted. The construction wastes swept toward the center line CL by the pair of disk brushes 17 are swept up along the sweep-up plate 21 (see FIGS. 4 and 5).

Inside the sweeper body 3 and behind the sweeping plate 21, a cylindrical roller brush 23 is installed with its rotation axis perpendicular to the center line CL. The roller brush 23 is formed by densely planting flexible synthetic resin brush bristles on the peripheral surface of a cylindrical or columnar strut in a radial cross section. When the sweeper 1 is grounded on the floor surface, the brush bristle material in the lower part of the roller brush 23 is curved and brought into close contact with the floor surface. A motor driver (not shown) drives the motor of the roller brush 23 . The roller brush 23 rotates in a direction in which the bristle tips of the brush bristles in contact with the floor surface oppose the traveling direction. Dust on the floor surface is thereby collected by the brush bristles of the roller brush 23 and swept up. The construction waste that has been swept up by the pair of disk brushes 17 and swept up along the sweeping plate 21 is sent backward by the brush bristles above the roller brush 23 .

Inside the sweeper main body 3 and behind the roller brush 23, a guide plate 25 is installed in a rearwardly inclined posture downwardly lowered toward the rear. The tip of the guide plate 25 has a comb shape. Dust collected by the roller brush 23 is scraped off by the tip of the guide plate 25 .

The construction waste sent rearward by the roller brush 23 is delivered to the guide plate 25, slides on its upper surface, and is guided rearward. The dust collected by the roller brush 23 and scraped off at the tip of the guide plate 25 slides on the guide plate 25 and is guided backward. The construction waste and dust guided backward by the guide plate 25 are received in the dust box 5, dropped, and stored. Construction waste is swept up along the sweep board 21 (see FIGS. 4 and 5). Since the pair of disk brushes 17 sweeps up construction wastes along the sweeping plate 21, the dust box 5 can be constructed high and its capacity can be increased.

The dust box 5 has a rectangular parallelepiped box shape with an upper front panel opening as a receiving port 27 for construction waste and dust. The front and back length of the dust box 5 is approximately half the length of the sweeper body 3. The left and right widths of the dust box 5 are substantially equal to the width of the sweeper main body 3 . The height of the dust box 5 is equal to or higher than that of the sweeper body 3. The sweeper body 3 is provided with a recess (fitting portion) 29 (see FIG. 6) for detachably fitting the dust box 5 above the moving mechanism 13 . When the dust box 5 is fitted into the fitting portion 29 of the sweeper body 3, the upper surface and the rear end upper surface of the dust box 5 are exposed. A pedestal 43, which will be described later, is attached. The dust box 5 is fitted into the fitting portion 29 of the sweeper body 3 and fixed by a fixture 31 . When the fixture 31 is released, it is possible to remove the dust box 5 from the sweeper body 3 and separate it.

The disk brush 17 and the roller brush 23 are concentrated in the front part of the sweeper body 3, and the dust box 5 and the moving mechanism 13 are arranged behind them, so that the size of the dust box 5 is about half the length of the sweeper body 3. This makes it possible to increase the capacity of the dust box 5, and at the same time reduces the situation where construction waste enters between the bottom of the sweeper body 3 and the floor surface and makes it impossible to travel. it becomes possible to

Moreover, by installing the dust box 5 above the moving mechanism 13, it is possible to improve load bearing performance and allow an increase in the amount of construction waste to be accommodated. Since the center of gravity of the entire dust box 5 and construction waste is located between the front and rear wheels 7 and 9 of the moving mechanism 13, the sweeper 1 can be restrained from changing its posture.

The dust box 5 is fitted with a handle 33 on its upper surface. The handle 33 is divided into a handle portion 35 fixed to the dust box 5 and a handle portion 37 connected to the handle portion 35 by a hinge 39 so as to be foldable (see FIG. 5). The total length of the folded handle 33 is configured to be shorter than the total length of the sweeper 1 so as to fit within the front and rear range of the sweeper 1 . By folding the handle 33 thereby, the handle 33 does not interfere with the running of the sweeper 1. - 特許庁By deploying the handle 33, the handle 33 is extended (see FIGS. 7 and 8). The extended state of the handle 33 is locked by a fastener 41 having a hook structure and a hook receiver 42 . The operator can hold the handle 33 to carry the dust box 5 separated from the sweeper body 3 by itself, and with the dust box 5 attached to the sweeper body 3, the sweeper body 3 can be moved together with the dust box 5. The entire sweeper 1 can also be transported.

A pedestal 43 is provided at the rear end of the dust box 5 . The pedestal 43 has a truncated pyramidal pedestal body 45 . Wheels 46 for transportation are attached to one side surface of the pedestal body 45 . Four legs 47 made of an elastic material such as rubber are attached to the bottom of the base body 45 . As shown in FIGS. 7 and 8, the pedestal body 45 is rotatably attached to the top surface of the rear portion of the dust box 5 via hinges 49 . The pedestal main body 45 can be flipped up to the upper part of the dust box 5 and retracted. A fastener 51 having a hook structure is attached to the upper surface of the rear portion of the dust box 5, and the pedestal 43 can be fixed to the upper surface of the rear portion of the dust box 5 by hooking it on a hook receiving portion (not shown) at the bottom of the pedestal body 45. Thereby, the pedestal 43 does not interfere with the running of the sweeper 1. - 特許庁

When the fastener 51 is removed, the pedestal 43 can be turned toward the rear end surface of the dust box 5 and lowered. A rear end face of the dust box 5 is provided with a fastener 48 for fixing a pedestal 43 lowered to the rear end face side of the dust box 5 . The operator releases the fixture 31 to remove the dust box 5 from the sweeper body 3 , rotates the pedestal 43 to the rear end side of the dust box 5 , and fastens it with the fastener 48 . Then, by gripping the handle 33, as shown in FIGS. 9 and 10, the pedestal 43 is gradually lifted so that the wheels 46 of the pedestal 43 are grounded. The legs 47 and wheels 46 are constructed and arranged so that the wheels 46 touch the ground before the legs 47 during this lifting action.

By grounding the wheels 46 and pulling the handle 33, the rolling of the wheels 46 makes it possible to easily carry the dust box 5 full of construction wastes, etc. (see FIG. 11(a)). By further lifting it upright, the wheels 46 are separated from the floor, the legs 47 are grounded, and the dust box 5 removed from the sweeper body 3 can be placed upright on the floor by itself (Fig. 11(b)). )reference).

In addition, with the dust box 5 attached to the sweeper main body 3, the sweeper 1 can be easily transported by gripping and lifting the handle 33 and grounding the wheels 46 of the pedestal 43 to move the sweeper 1. (See FIG. 12(a)). The sweeper 1 as a whole can be placed upright on the floor by lifting it upright, separating the wheels 46 from the floor, and grounding the legs 47 (see FIG. 12(b)).

As described above, according to the present embodiment, it is possible to increase the capacity of the dust box, separate the dust box from the sweeper main body and transport only the dust box, reduce the transport burden, and reduce the transport burden of the sweeper as a whole. , Suppressing the possibility of occurrence of a situation where it is impossible to drive, easily enshrining the dust box alone and minimizing the exclusive area, easily enshrining the sweeper as a whole and minimizing the exclusive area Suitable for construction sites, etc. A sweeper equipped with functions can be realized without complicating its structure.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1... Sweeper, 3... Sweeper main body, 5... Dust box, 7, 9... Driving wheel, 11... Crawler, 13... Moving mechanism, 15... Chassis, 19... Motor, 17... Disc brush, 21... Sweeping plate, 23... Roller brush 25 Guide plate 31 Fixing tool 33 Handle 35, 37 Handle portion 39 Hinge 41 Fastener 42 Hook receiver 43 Pedestal 45 Pedestal main body 46 Transportation wheel, 47... leg, 48... fastener, 49... hinge, 51... fastener.

Claims (11)

A sweeper body that has front and rear wheels for traveling and collects construction waste while self-propelled on the floor;
and a dust box for storing the collected construction waste,
A pair of disc brushes having bristle bristles forming a truncated conical shape are positioned in front of the sweeper body in the traveling direction, and the bristles partially overlap each other across the center line of the sweeper body and are perpendicular to the floor surface. installed with the rotation axis tilted forward with respect to a vertical line,
A sweeping plate is provided in the sweeper body so as to partially overlap the rear portion of the disk brush and to follow the bristles of the disk brush,
In the sweeper body, a cylindrical roller is provided to send backward the construction waste that has been swept up along the upper surface of the sweeping plate by the disc brush, and to collect dust on the floor surface. A brush is erected,
The dust box has a box shape with a receiving port opened in the upper part of the front plate, and receives the construction waste sent out by the roller brush and the collected dust from the receiving port. Detachably attached to the sweeper body behind the roller brush so as to drop into the dust box,
A pedestal is attached to the rear end surface of the dust box for placing the dust box removed from the sweeper body upright independently, and for placing the dust box upright together with the sweeper body while attached to the sweeper body,
A handle is fixed to the upper surface of the dust box. By holding the handle, the dust box removed from the sweeper body can be carried alone, and the sweeper body can be moved to the dust box while attached to the sweeper body. A sweeper, wherein said base is equipped with transport wheels for transporting with it. The sweeper of claim 1, wherein the handle is collapsible. 3. The sweeper of claim 2, wherein the handle is provided with a catch that secures it in a deployed state. 3. The sweeper of claim 2, wherein an overall length of said folded handle is less than an overall length of said sweeper body, said folded handle fitting above said sweeper body. 2. The sweeper according to claim 1, wherein the pedestal is rotatably attached to the upper surface of the dust box by a hinge. 6. The sweeper according to claim 5, wherein a fastener is provided on the upper surface of the dust box for fixing the pedestal that has been flipped up on the upper surface of the dust box. 6. The sweeper according to claim 5, wherein the rear end surface of the dust box is provided with a fastener for fixing the pedestal lowered to the rear end surface of the dust box. A guide plate is disposed within the sweeper body and between the roller brush and the dust box for guiding the construction waste sent out by the roller brush and the collected dust to the inlet of the dust box. 2. The sweeper of claim 1, wherein the sweeper is mounted in a rearward tilt. 2. The sweeper according to claim 1, wherein said dust box is equipped with a fixture for fixing said dust box attached to said sweeper body. 2. The sweeper of claim 1, wherein said dust bin is fitted above said front and rear wheels. A sweeper body that has front and rear wheels for traveling and collects construction waste while self-propelled on the floor;
and a dust box for storing the collected construction waste,
The dust box is detachably attached to the sweeper body,
A pedestal is attached to the rear end surface of the dust box for placing the dust box removed from the sweeper body upright independently, and for placing the dust box upright together with the sweeper body while attached to the sweeper body,
A handle is fixed to the upper surface of the dust box. By holding the handle, the dust box removed from the sweeper body can be carried alone, and the sweeper body can be moved to the dust box while attached to the sweeper body. A sweeper, wherein said base is equipped with transport wheels for transporting with it.

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