JPH0722191Y2 - Cleaning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention] (Industrial field of application) The present invention relates to an exhaust device that communicates with a discharge port of an air blower mounted on a vehicle body through a duct, and an exhaust device of the exhaust device. A dust container that is detachably engaged with the lower portion and a dust collection port that communicates with the air intake port of the air suction unit, and the dust container on the ground is sucked by the air suction unit that is rotated by the drive of the engine to collect the dust collection container. Related to the cleaning machine housed in.

(Prior art and problem to be solved) Conventionally, in this type of cleaning machine, when the dust container is not sufficiently locked during work, or when the dust container is removed, If you forget to stop
The dust in the dust container may be blown out to the operator or may be scattered around.

(Means and Actions for Solving the Problems) The present invention is provided with a switch that short-circuits the ignition primary circuit of the engine that drives the fan in conjunction with the disengagement operation of the dust container. It is possible to prevent the engine from stopping in association with the operation of removing the dust container and preventing the dust from blowing out from the engagement gap of the dust container.

(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In the figure, the air blower 1 is configured as follows.
That is, the engine 3 is provided above the main body 2. A fan 7 is fixed to a tip end of a crank shaft (rotary shaft) 5 of the engine 3 by a nut 9 and rotates in a horizontal direction. A dust collecting port 11 is provided in the lower part of the main body 2 close to the ground, and a dust collecting passage 13 mounted on a vehicle body 12 and a suction port
It communicates with the inside of the main body 2 via 15. A discharge port for discharging dust sucked by the rotation of the fan 7 at the rear part of the main body 2.
17 is provided and communicates with the air exhaust device 19 via a duct 18. The air exhaust device 19 is configured as follows. That is, the duct 18 communicates with the cylindrical portion 21 provided in the upper portion, and opens in the circumferential direction of the upper portion in the cylindrical portion 21. A conical exhaust pipe 23 is provided at the center of the cylindrical portion 21, and a large cylindrical portion 25 is formed below the exhaust pipe 23 with an appropriate gap with the lower end of the exhaust pipe 23. A circular shield plate 27 having a diameter larger than the lower end of the wind pipe 23 is formed in a substantially conical shape facing upward. The conical shield plate 27 is fixed around the periphery with an appropriate gap. The upper part of the exhaust pipe 23 is formed in a shape in which the outer periphery is bent upward, and is fixed to the upper end of the cylindrical portion 21 and a cylindrical filter 31 is rotatably mounted on the upper surface via an annular packing 29. There is. The filter 31 is an inner surface of a filter body 33 formed in a cylindrical shape while bending a breathable paper or the like back and forth,
Cylindrical perforated plates 35 and 37 that cover the outer surfaces thereof are integrally fixed with annular groove plates 39 and 41 that cover the upper and lower ends, respectively. A circular cover 43 whose edge is bent downward is engaged with the upper surface of the filter 31, and a pin 45 protruding and fixed to the lower surface is detachably engageable with a locking hole 47 provided at an appropriate position of the groove plate 39. The handle 49, which is fixed to the upper surface of the cover 43 and is fixed to the cover 43, is rotated by gripping the handle 49.
31 rotates with the cover 43 on the upper surface of the exhaust pipe 23. A support rod 51 is horizontally fixed across the exhaust pipe 23, a screw rod 53 stands upright in the center, and a screw handle 55 that is screwed penetrates the cover 43 and moves the cover 43 downward via a spring 57. The filter 31 is pressed freely so that the filter 31 is pressed against the packing 29. A contact piece 59 made of an elastic metal plate is fixed to the outer edge of the upper surface of the air exhaust tube 23 to contact the perforated plate 37 on the outer periphery of the filter 31 to store static electricity in the filter 31 from the air exhaust tube 23. It is discharged to the ground from the ground chain 61 provided on the lower surface of the dust collecting path 13 via 12.

The duct 18 is provided with a ventilation port 63 for blowing dust on the outer periphery of the filter 31 to remove dust, and a switching valve 65 for switching ventilation in the direction of the ventilation port 64 communicating with the inside of the cylindrical portion 21 and the ventilation port 63 is a lever. It is rotatably provided by 67.

A front wheel 69 and a rear wheel 71 are provided on the vehicle body 12, and a steering wheel is provided at the rear
73 is provided.

At the lower end of the large cylindrical portion 25, a dust container 75 made of an air-impermeable material and having an open upper portion is fixed via an annular packing 77. A swing rod 81 is pivotally attached to the vehicle body 12 at its lower end by a shaft 79, and an engaging portion 83 having a concave upper surface is fixed to the upper end of the swing rod 81, and the front side of the dust container 75 is secured. A locking piece 85 protruding downward is engaged with the upper part, and a locking tool 87 is provided on the upper rear side of the dust container 75.
Therefore, it is detachably locked to the lower surface of the large cylindrical portion 25.
The swing rod 81 is provided so that its length can be adjusted by a turn bag 89 on the way, and is connected to the vehicle body 12 by a chain 91 to regulate the position where it swings downward. Wheels 93, 93 are provided on the lower surface of the dust container 75. The locking tool 87 is configured as follows. That is, the upper end of the hook 99 is attached to the lever 97 pivotally attached to the large cylindrical portion 25 by the shaft 95.
The hook 99 is pivotally attached by means of 1, and the lower end of the hook 99 engages the flange portion 103 on the upper surface of the dust container 75 via the packing 77. The vehicle body 12 is provided with a switch 105, and the dust container 7
When 5 is engaged with the air exhaust device 19, the swing rod 81 is actuated to release the short circuit of the ignition primary circuit of the engine 3, and the dust container 75 is engaged with the air exhaust device 19. In the released state, the switch 105 is actuated when the switch 105 is disengaged from the swing rod 81 to short-circuit the ignition primary circuit of the engine 3 to stop the ignition in the secondary circuit and stop the engine. One end of the blower pipe 107 is opened in the exhaust pipe 23, and the other end is opened toward the ground surface at the front end on the first side of the vehicle body 12.

Switch 105 is a magnet wheel 1 as shown in FIG.
A primary circuit 115, which connects the electromotive coil 111 sensitive to 09 and the primary coil 113a via the main switch 113, is provided so as to be short-circuited during operation. An electronic ignition device 117 is provided in the primary circuit 115, and when the voltage of the primary circuit 115 reaches a predetermined voltage, the primary circuit 115 is short-circuited and the secondary coil 119 is connected.
A high voltage is generated in the secondary circuit 121 and is discharged by the spark plug 123.

In the above embodiment, the dust sucked from the dust collection port 11 by the air blower 1 together with the air enters the cylindrical portion 21 from the discharge port 17 and descends while swirling. At the same time, the air is discharged from the exhaust pipe 23 through the filter 31 to the outside, and rough leaves, paper scraps and the like descend along the inner surface of the cylindrical portion 21 and descend from the gap between the shield plate 27 and the large cylindrical portion 25 to collect the dust. Housed within 75.

To discharge the dust inside the dust collection container 75, the locking device 87
When the handle 97 of the is tilted rearward, the flange of the hook 99
The lock of 103 is released. When the operator holds the rear flange 103 by hand, removes the hook 99, and pulls the dust collecting container 75 backward, the swing rod 81 swings, the switch 105 operates, and the engine 3 stops. At the same time, the dust collecting container 75 descends and is placed on the ground. To install the dust container 75,
When the locking piece 85 on the front part of the dust container 75 is locked to the locking part 83 on the upper end of the swing rod 81 positioned by the chain 91, and the rear part of the dust container 75 is pushed forward while being pushed, The swing rod 81 swings forward to lift the dust container 75, and the switch 105
Is activated, the stopped state of the engine 3 is released, and the large cylindrical portion
With the lower surface of 25 engaged, rotate lever 97 to lock
It is fixed by 87.

To remove dust accumulated in the filter 31, use the switching valve.
65 is switched by the lever 67 to blow out air from the air outlet 63 and blow it on the outer peripheral surface of the filter 31. At this time, if the screw handle 55 is loosened and the cover 43 is rotated by the handle 49, the outer peripheral surface of the filter 31 is also integrally rotated, and air is blown across the entire outer peripheral surface of the filter 31 to form an inner surface. Dust container that has accumulated dust is removed
Drop into 75. The static electricity stored in the filter 31 is discharged from the outer perforated plate 37 through the contact piece 59, the cylindrical portion 21, the large cylindrical portion 25, the vehicle body 12 and the earth chain 61 to the ground.

The dust accumulated on the corners such as the curb and the wall is blown off by the air blown from the blower pipe 107 and sucked from the dust collecting port 11.

In the present invention, the dust container is not limited to the cylindrical shape,
It may be formed in a rectangular box shape, and the swing rod and the locking tool may be provided at two places on the left and right.

Also, when removing the dust container and removing the locking tool, the dust container rotates downward around the engaging part of the upper end of the swing rod, and the bottom part rides on the wheel. If the weight is supported in this manner, and then the weight is supported and then pulled out to the ground, the operation is further facilitated. Further, a swing rod for supporting the front upper part and the rear upper part of the dust container may be separately provided, and the front and rear parts of the dust container may be lifted at the same time by pushing forward.

The switch 105 is not limited to the one that interlocks with the swing rod 81, and the engine may be stopped in conjunction with the movement of the locking tool 87 or the dust container 75.

Further, a warning may be provided by a lamp, a buzzer or the like when the engine is stopped.

[Effect of device]

According to the present invention, when the dust container is not fully engaged or when the dust container is not removed, the engine stops,
It is possible to prevent dust from being blown onto the worker or scattered around.

[Brief description of drawings]

1 and 2 are a side sectional view and a plan view, respectively, of one embodiment of the present invention, FIGS. 3 and 4 are a plan sectional view, a rear view, and FIGS. 5 and 6, respectively, of a filter. Partial side sectional views, flat sectional views, FIG. 7 and FIG. 8 of the swing rod are side and front views, FIG. 9 is a sectional side view of the screw handle part, and FIG. Plan view of container, Fig. 11, Fig. 12
The figures are a side view and a rear view of the fastener, respectively, and FIG. 13 is an ignition electric circuit diagram. 1 …… Blower, 11 …… Dust collection port 12 …… Body, 15 …… Suction port 17 …… Discharge port, 18 …… Duct 19 …… Blower, 75 …… Dust container 105 …… Switch

Claims (1)

[Scope of utility model registration request] 1. A blower including fine dust is communicated with a discharge port 17 of an air blower 1 equipped with an engine 3 mounted on a vehicle body 12 through a duct 18 so that large dust is dropped to the lower part. Exhaust device 19 mounted on the rear of the vehicle body 12 and the exhaust device
A dust container 75 having an open upper part releasably and airtightly engaged with a lower part of 19 and a dust collecting port mounted on a lower part of a vehicle body 12 for communicating with the air intake port 15 of the air suction device 1 and sucking dust on the ground together with air 11 and
A cleaner 105, which is provided with a switch 105 that short-circuits an ignition primary circuit 115 of the engine 3 that drives the air blower 1 in association with the release operation of the dust container 75.