JPH07207632A - Cleaning truck - Google Patents

Abstract

PURPOSE:To remove cottony or thready rubbish entangled in brushing wires of a side brush and securely clean a roadway or a floor. CONSTITUTION:A rubbish-removing member 20 is attached to be elastically deformable, which can contact the front ends of brushing wires of a side brush 10, in the body 2 of a cleaning truck 1. When the side brush 10 rotates, the brushing wires get into contact with the rubbish-removing member 20 so that the wires are scrubbed by the removing member. Even when cottony or thready rubbish is entangled in the front ends of brush wires, the rubbish can be easily removed by the rubbish-removing member 20. In this way, rubbish left in the cleaning site due to sudden separation of the rubbish entangled in the brushing wires can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a body with a side brush that is rotatable in contact with a floor surface or a road surface (hereinafter simply referred to as the floor surface), and removes dust (dust) on the floor surface from the center of the vehicle body. It relates to a cleaning car that is swept close to you.

[0002]

2. Description of the Related Art As a cleaning vehicle of this type, there are known ones that sweep dust on the floor into the hopper by a rotating main brush, and ones that suck dust on the floor into the hopper by the suction force of a blower. However, generally, in these cleaning vehicles, a side brush that is rotatable in contact with the floor surface is arranged on the vehicle body to sweep dust on the floor surface. This side brush is constructed in the shape of a disc with many brush wires attached to the bottom surface of the brush mounting plate, and this brush mounting plate is detachably mounted on the brush rotating shaft in the downward state mounted on the support arm that can move up and down. To be In a conventional cleaning vehicle, the tip of the brush wire on the outside of the vehicle body of the side brush rotates in contact with the floor surface or road surface, sweeping dust on the floor surface toward the center of the vehicle body. .

[0003]

In the above-mentioned conventional cleaning vehicle, since the tip of the brush wire of the side brush comes into contact with the floor surface to rotate, the brush wire of the side brush is made of cotton or thread. When trash is entangled, it is difficult to remove it, and other trash adheres to the trash and gradually becomes larger, and when it becomes quite large, it suddenly leaves at various positions,
There is a problem that if the dust is detached from the outside of the vehicle body, the dust is left as unswept dust and cleaning becomes uncertain, and the dust bites into the brush wire to prevent the dust from being detached, which requires manual removal work.

[0004]

Therefore, the invention according to claim 1 is to provide a cleaning vehicle in which a side brush capable of rotating in contact with a floor surface is disposed on a vehicle body to sweep dust on the floor surface. In the above, it is characterized in that it is provided with a dust removing member that can come into contact with the tip end portion of the brush wire of the side brush. The invention according to claim 2 is characterized in that the dust removing member is provided on the vehicle body so as to be elastically deformable. Further, the invention according to claim 3 is characterized in that the dust removing member is provided at a position where it can be brought into contact with the vehicle body inner side portion of the side brush.

[0005]

In the invention described in claim 1, since the dust removing member capable of contacting the tip of the brush wire of the side brush is provided,
When the side brushes rotate, the brush wire rods come into contact with the dust removing member and are squeezed, and the tips of the brush wire rods are curved to expand each other. As a result, even if cotton-like or thread-like dust is entangled at the tip of the brush wire, the dust is knocked off by the dust removing member or blown off by the centrifugal force to be removed. Further, in the invention according to claim 2, since the dust removing member is elastically deformable, even if there is a protrusion on the floor surface, the dust removing member can be easily bent and escaped, and the dust removing member is damaged. Can be prevented. In the invention according to claim 3,
Since the dust removing member is provided so as to be able to contact the brush wire on the inside of the side brush body, dust that is entangled in the brush wire can always be removed inside the body of the side brush by the dust removing member. It can be efficiently collected by the cleaning device in the center of the machine base.

[0006]

1 to 4, a first embodiment of the cleaning vehicle will be described. This cleaning vehicle 1 will be described as a cleaning vehicle 1 that is equipped with a sensor for detecting a magnetic tape buried in the floor surface and performs unmanned cleaning. However, an operator walks on an operation handle 19 provided on the vehicle body 2. The same can be applied to a cleaning vehicle that is operated while operating or while riding on the vehicle body. 1 to 4, a vehicle body 2 of a cleaning vehicle 1 is provided with left and right front wheels 4 and caster-type rear wheels 5 that are driven by a pair of motors 3, respectively. It is possible to change the direction of travel. Side brush devices 6 are attached to the lower portions of both sides of the vehicle body 2. In this side brush device 6, a base portion of a support arm 7 is pivotally attached to a mounting portion 2a provided on a vehicle body 2 so as to be vertically swingable, and a brush rotating shaft 8 in a downward state is rotationally driven at a tip portion of the support arm 7. A drive motor 9 is installed, and a side brush 10 is detachably attached to the brush rotating shaft 8. The rotation axis of the side brush 10 is slightly inclined with respect to the vertical as shown in FIGS. 1 and 2, and the tip end of the brush wire of the side brush 10 near the outer side of the vehicle body contacts the floor surface and rotates in the direction of the arrow. However, the dust on the floor and road is swept toward the center of the vehicle. Reference numeral 11 denotes a side brush cover fixed to the vehicle body 2, and covers side and front sides of the support arm 7 and the side brush 10. 11A is a front cover.

A cleaning device 12 is arranged at the lower center of the vehicle body 2 between front wheels 4 and rear wheels 5. This cleaning device 1
2 rotatably supports a main brush 13 extending in the width direction on the vehicle body 2, and the main brush 1 is attached to the lower surface of the vehicle body 2.
3 are provided with rubber flaps 14 that surround the front, rear and sides of the main body 3 to form a dust sweeping chamber 15, and the main brush 13
Is driven to rotate in the direction of the arrow by a drive motor (not shown) so that dust on the floor surface or road surface is swept up into the hopper 16 in a hopper throw manner. A blower for generating a suction airflow is connected to the hopper 16 via a filter so that dust generated in the dust sweeping chamber 15 is sucked into the hopper 16 by the suction action of the blower.

As shown in FIG. 4, a dust removing member 20 is fixedly attached to the front portion of the vehicle body 1 so as to come into contact with the tip portion of the brush wire of the side brush 10. The dust removing member 20 is constituted by an abutting rod 22 integrally formed with an elastically deformable coil spring 21, and an end portion of the coil spring 21 is arranged so that the abutting rod 22 projects downward.
It is firmly attached to and detached from. This coil spring 2
The fixing of No. 1 is performed by fixing the mounting bracket 23 to the vehicle body 2 above the tip end portion of the brush wire of the side brush 10, and forming the mounting hole 24 at the lower end of the mounting bracket 23.
4 by fitting the end portion of the coil spring 21 and tightening with the set screw 25.
The dust removing member 20 can be easily replaced by loosening. As shown in FIG. 3, the dust removing member 20 is positioned so as to be able to contact the brush wire rod of the side brush 10 that is closest to the inner side of the vehicle body. The dust removing member 20 may be installed at a position where dust separated from the brush wire does not fly toward the outer side of the vehicle body, and may be provided near the front of the side brush 10.

Next, the operation of the cleaning vehicle 1 constructed as described above will be described. The support arm 7 of the side brush device 6 is lowered to bring the tip of the brush wire of the side brush 10 into contact with the floor surface and rotate in the direction of the arrow, and the main brush 13 comes into contact with the floor surface and rotate in the direction of the arrow. The cleaning vehicle 1 is run in this state. As a result, the side brushes 10 on both sides sweep dust on the floor surface to the central portion of the vehicle body 2, and the dust is swept up by the cleaning device 12 and stored in the hopper 16. When the cleaning vehicle 1 performs a cleaning operation, cotton-like or thread-like dust may be entangled with the brush wire of the side brush 10 and may not come off. In this cleaning vehicle 1, the position of the side brush 10 closest to the inner side of the vehicle body is determined. Since the brush wire of the side brush 10 comes into contact with the contact rod 22 of the dust removing member 20 and is trashed, the dust entangled with the brush wire is immediately contacted with the contact rod 22 at a position closer to the inner side of the vehicle body. It is detached and blown near the center of the vehicle body 2. Therefore, the dust separated from the brush wire is swept up by the main brush 13 together with the dust swept up by the side brush 10, and the hopper 1
Recovered within 6.

In the cleaning operation, even if the contact rod 22 of the dust removing member 20 comes into contact with a projection existing on the floor surface, the contact rod 22 is easily displaced by the coil spring 21 shown as an elastic member. You can avoid protrusions,
The contact rod 22 is prevented from being damaged. Further, when the contact rod 22 is disengaged from the projection, the contact rod 22 is immediately returned by the restoring force of the coil spring 21 to perform dust removal work. Further, when it becomes necessary to replace the dust removing member 20 due to the cleaning work for a long period of time, it can be easily performed by loosening the set screw 25.

5 and 6 show a second embodiment of the present invention, in which the dust removing member 20 is brought into contact with the brush wire of the side brush 10 only when necessary. The middle portions of the pair of left and right moving arms 30 are pivotally attached to the vehicle body 2 by a pivot 31 so as to be swingable left and right.
Left and right dust removing members 20 that come into contact with the brush wire rods of the left and right side brushes 10 are removably attached to the front end portion of 0, respectively. Further, a cylinder body 35a of a cylinder 35 such as a hydraulic cylinder or an electric cylinder is fixed to the central portion of the vehicle body 2, and rear ends of a pair of left and right moving arms 30 are connected to a piston rod 35b of the cylinder 35 via a link 37. When the piston rod 35b is located at the retracted end, the dust removing member 20 moves to the side brush 10 as shown in FIG.
Of the side brush 10, and when the piston rod 35b is positioned at the projecting end, the dust removing member 20 is positioned so as to contact the brush wire of the side brush 10, as shown in FIG. is there. The piston rod 35b of the cylinder 30 may be made to project by a switch 38 provided on the vehicle body 2 being operated by an operator, or may be made to project by a fixed time at a predetermined time by a timer incorporated in the vehicle body 2. Is also good. In the second embodiment, the dust removing member 20 is not always in contact with the brush wire of the side brush 10, so that the wear of the dust removing member 20 can be reduced. Further, since the dust removing member 20 can be engaged and disengaged with the brush wire of the side brush 10, the dust entangled in the brush wire can be efficiently removed by the engaging and disengaging operation.
Further, the dust removing member 20 can be brought into contact with the side brush 10 only when required, taking into consideration the degree of dust entanglement with the brush wire.

FIGS. 7 to 9 show a third embodiment of the present invention, in which the support arm 7 of the side brush device 6 is configured to be vertically and horizontally swingable, and the support arm 7 is horizontally swingable. The dust removing member 20 is also configured to move left and right in synchronization. A swing bracket 40 is pivotally attached to a mounting portion 2f provided on a side portion of the vehicle body 2 so as to be swingable left and right via a vertical pivot 41. The base portion of the support arm 7 is pivotally attached to the swing bracket 40 so as to be vertically swingable. The support arm 7 is biased toward the outside of the vehicle body 2 by a spring 42 stretched between a stopper 51 provided on the vehicle body 2 and a locking pin 52 provided on a mounting bracket 46, which will be described later. The pin 43 provided on the upper surface is configured to come into contact with the stopper 51 and be held in the projecting state shown in FIG. 8, and is moved to this projecting state during cleaning work. Further, the support arm 7 is configured to be able to be held in the stored state at the same position as the position shown in FIG. 5 via the wire 53 by the operation of the storage cylinder 44 fixed to the vehicle body 2, and is moved to this stored state when the cleaning work is not performed. . The wire 53 is a pulley 54 pivotally supported by the vehicle body 2.
The lock pin 52 is connected to the piston rod of the storage cylinder 44.

The rear end of the side brush cover 45 is fixed to the swing bracket 40 so that the side brush cover 45 can swing left and right together with the support arm 7. The side brush cover 45 is configured to cover the supporting arm 7 and the side brush 10 laterally, frontward, and upward. A mounting bracket 46 is fixed near the front end of the upper plate of the side brush cover 45. An elastically deformable rubber member 47 shown as an elastic member is fixed to the lower surface of the mounting bracket 46, and a contact rod 48 exemplified as the dust removing member 20 is detachably attached to the lower end portion of the rubber member 47.

In the third embodiment, when performing cleaning work,
The storage cylinder 44 is actuated to move the support arm 7 to the extended state by the urging force of the spring 42, and the side brush 10 is rotated in this state. Support arm 7
When the side brush 10 is horizontally moved to the overhang position, the side brush 10 is also horizontally moved to the overhang position as shown in FIG. 7, but the side brush cover 45 also horizontally moves in synchronization with the horizontal movement of the support arm 7. The member 20 is the side brush 10.
It is moved horizontally in synchronization with the horizontal movement of. Therefore, even if the side brush 10 moves to the left and right, the dust removing member 20 can always come into contact with the tip of the brush wire of the side brush 10 to perform the dust removing action. Since the side brush cover 45 does not descend even if the support arm 7 descends due to abrasion of the brush wire, the dust removing member 20 does not descend and come into contact with the road surface or the floor surface. Further, since the contact rod 48 of the dust removing member 20 is fixed to the vehicle body 2 via the rubber member 47, even if the contact rod 48 contacts the protrusion, the contact rod 48 can easily move laterally to avoid the protrusion. it can.

Next, an embodiment of the present invention will be described. 1. The cleaning vehicle according to claim 1, wherein the dust removing member is fixed to the vehicle body via a spring. In this aspect, since the dust removing member is fixed to the vehicle body via the coil spring, the dust removing member is easily deformed in any direction and easily restored, and the function of the dust removing member is maintained for a long period of time. It can be maintained and the device configuration can be simplified.

[0016]

As described above, according to the present invention, since the dust removing member capable of contacting the tip of the brush wire of the side brush is provided, dust such as cotton or thread is entangled in the tip of the brush wire. However, the dust can be easily removed by the dust removing member, and the unswept residue due to the sudden removal of the dust entangled in the brush wire can be prevented and the cleaning can be reliably performed. Further, in the present invention, since the dust removing member is elastically deformable, even if there is a protrusion on the floor surface or the road surface, the dust removing member can easily bend and escape, and the dust removing member is damaged. Can be prevented. Further, in the present invention, since the dust removing member is brought into contact with the brush wire on the inner side of the vehicle body of the side brush, dust caught in the brush wire can be always removed by the dust removing member on the inner side of the vehicle body of the side brush. , The separated dust can be efficiently collected by the cleaning device in the center of the machine base.

[Brief description of drawings]

FIG. 1 is a side view of a cleaning vehicle showing a first embodiment.

FIG. 2 is a front view of the cleaning vehicle of FIG.

3 is a plan view of the cleaning vehicle of FIG. 1. FIG.

FIG. 4 is an enlarged view showing a part of FIG. 2 omitted.

FIG. 5 is a plan view of a cleaning vehicle showing a second embodiment.

6 is an operation explanatory view of FIG. 5. FIG.

FIG. 7 is a side view of a cleaning vehicle showing a third embodiment.

8 is a plan view of the cleaning vehicle of FIG. 7. FIG.

9 is a front view of the cleaning vehicle of FIG. 7. FIG.

[Explanation of symbols]

1 cleaning car, 2 car body, 10 side brush, 2
0 dust remover

Claims (3)

[Claims] 1. A cleaning vehicle in which a side brush capable of rotating in contact with a floor surface or a road surface is disposed on a vehicle body so as to sweep dust on the floor surface or the road surface, a brush wire rod tip portion of the side brush is provided. A cleaning vehicle comprising a dust removing member that can come into contact with the cleaning vehicle. 2. The cleaning vehicle according to claim 1, wherein the dust removing member is provided on the vehicle body so as to be elastically deformable. 3. The cleaning vehicle according to claim 1, wherein the dust removing member is provided at a position where it can be brought into contact with the vehicle body inner side portion of the side brush.