JP2533436Y2 - Vehicle vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a vacuum cleaner for a vehicle, which is installed in a car wash, a service station, or the like, and mainly cleans the interior of an automobile.

[Prior art] Conventionally, as a vacuum cleaner of this kind, a boom is erected on a top portion of a main body having a built-in suction device, a suction hose having a suction nozzle at a tip is connected to the boom, and the suction hose is installed in a vehicle. There is a known type that takes in and cleans the interior of an automobile.

In such a vacuum cleaner, as shown in, for example, JP-A-63-130452, a suction hose extending from a main body is raised through a boom, and the boom is moved to a predetermined position except during work through a biasing means such as a spring. It is urged to stand in the position.

[Problems to be Solved by the Invention] In such a device, the boom is interlocked with the movement of the suction hose at the time of work, and returns to the predetermined rising position again when the pulling force of the hose is released. Works as follows. Therefore, when performing a cleaning operation using such a device, the user must always perform the operation while receiving the returning force of the boom. In such a case, it is necessary to always apply a force that opposes the return force of the boom during the work, so the operability is deteriorated, and the work volume of people who are generally weak, such as female customers, becomes excessive. Become.

In addition, the stress applied to the hose becomes excessive, resulting in damage.
It accelerates deterioration, shortens hose life, and increases running costs.

[Means for Solving the Problems] The present invention addresses such problems and provides an air cylinder as a means for tilting the boom in the vertical direction. The air cylinder expands and contracts by supply of compressed air, and opens and closes a pipe opening / closing valve of a pipe for introducing compressed air into the cylinder at a predetermined timing, so that the boom is held in an inclined state at least during a cleaning operation. Such a vehicle cleaner is provided.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external view of a vehicle cleaner provided with the present invention. Reference numeral 1 denotes a cleaner main body, which includes an operation display unit 2, a coin mech 3, a switch operation unit 4, a maintenance door 5, and a dust disposal door 6 on the front. A boom 7 is erected on the top of the main body 1 and a suction hose 8 is suspended from its upper end. The suction hose 8 has a suction nozzle 9 at the tip, and when not in use, a nozzle storage case 10 fixed to a side surface of the main body.
To be housed. Reference numeral 11 denotes a boom base, the base end 12 of which is supported rotatably in the horizontal direction at the top of the main body 1, and
The support shaft A supports the boom 7 so as to be swingable in the vertical direction. 13 is a connecting hose, which is the base end 12 of the boom base 11
And the boom 7, and a suction device (described later) communicates with the boom 7. Accordingly, a suction conduit from the suction device to the suction nozzle 9 via the boom 7 and the suction hose 8 is formed.

FIG. 2 is an enlarged detailed view of the boom 7 and the boom base 11 and their peripheral portions. Boom 7 and hollow tube members 7 ₁ extending upward, it is formed in the base 7 ₂ consisting substantially L-shaped box-shaped member. The boom base 11 is formed of a substantially L-shaped box-shaped member, and supports the boom 7 on the support shaft A so as to be vertically swingable. 34 is a spring, engaged at one end to the base part 7 _{and second} boom 7 is mounted between the boom 7 and the boom base 11 engaged the other end to the lower end of the boom base 11. Therefore, the boom 7 is constantly biased in the rising direction. 14
Is an air cylinder mounted between the boom 7 and the boom base 11 before the spring 34. The air cylinder 14 has a rod that expands and contracts by supplying and discharging compressed air, and causes the boom 7 to tilt forward by supplying compressed air.

FIG. 3 is an internal configuration diagram of the main body 1. 15 is a suction device, a fan device 17 driven by a motor 16,
The dust collecting portion 18 is formed. The dust collector 18 communicates with the base end 12 of the boom base 11 via a duct 19 to form a suction pipe, and on the other hand, communicates with the fan device 17 via a duct 20. Therefore, when the fan device 17 is operated by the drive of the motor 16, dust is collected from the suction pipe leading to the suction nozzle 9. In addition, a filter 21,
A filter cleaner 22 and a dust container 23 are provided, respectively, and relatively large dust collected from the suction nozzle 9 falls into the dust container 23, and fine dust is removed by the filter 21. You. The dust adhered to the filter 21 is shaken up and down by the filter cleaner 22 to be vibrated up and down to the dust collecting container 23, so that the filter 21 can be cleaned. 35 is a pressure sensor, a filter
The suction force is compared across the 21 and it is detected that the suction force has dropped below a predetermined value. 24 is a compressed air introduction pipe, and one is a main body 1
It communicates with a compressor 25 placed outside via a coupler 26, and the other is branched into pipes 24a and 24b from the middle. The conduit 24a is wound around the outer circumference of the boom 7 and the suction hose 8,
It communicates with a discharge nozzle 27 provided integrally with the suction nozzle 9. The discharge nozzle 27 is provided with a hand valve which is opened and closed in accordance with a lever operation.
Higher pressure air is discharged. The pipe 24b communicates with the air cylinder 14 via a solenoid valve 28.

FIG. 4 is a block diagram showing a control system of the above embodiment. 29 is a control unit with a built-in microcomputer
Based on signals from the coin mech 3, the switch operation unit 4, and the pressure sensor 22, the operation state is displayed on the operation display unit 2, and the driving of the motor 16 is controlled. In addition, the pipe
The open / close control of the solenoid valve 28 of 24b is performed. The operation display unit 2 includes a time display lamp 30, an operation lamp 31, a pause lamp 32, and a filter clogging lamp 33. The elapsed-time display lamp 30 lights up and displays the time during which the vacuum cleaner can be used in accordance with the amount of money received at the coin mech 3, and turns off one by one every time a predetermined time (30 seconds in this example) elapses during use. Then, it operates to always display the usable time. The operation lamp 31 lights up and displays that the suction device 15 is operating, and while the lamp 31 is lit, the elapsed time in the elapsed time display lamp 30 is counted. The pause lamp 32 lights up and displays a state in which the suction nozzle 9 is stored in the nozzle storage case 10 while the cleaner is in use, that is, a work pause state.
During the lighting of the lamp 32, the elapsed time counting is not performed. When a signal from the filter clogging lamp 33 and the pressure sensor 35 detects that a predetermined suction force cannot be obtained, the lamp is lit and displayed.

The operation of the present apparatus having the above configuration will be described.
The control unit 29 first enters a state of waiting for coin insertion from the coin mech 3. When the insertion of the coin is detected, it is checked whether or not the filter clogging lamp 33 is lit, and if it is lit, the coin is returned. If the lamp 33 is not lit, the operable time according to the inserted amount is set in the timer T, and the lapse display lamp 30 is lit and displayed according to the timer time T. Thereafter, when the switch of the switch operation unit 4 is turned on, the motor 16 is driven to operate the fan device 17, the operation lamp 31 is turned on, and the time count of the timer T is started. When the switch is turned on, the solenoid valve 28 is opened, and compressed air is supplied from the compressor 25 into the air cylinder 14 through the pipe 24b. Then, the rod of the air cylinder 14 rebounds against the biasing force of the spring 34 and rises to tilt the boom 7 forward. At this time, the boom 7 is held in a state where the rod of the air cylinder 14 is fully extended, that is, in a state where the boom 7 is inclined at the angle α (FIG. 2 (b)).

In this way, the dust-absorbing operation is performed, and the time-indicating lamp 30 sequentially turns off the lamps that are turned on as time elapses, and displays the remaining workable time. When the timer time T has elapsed, the motor 16 is stopped, and the operation lamp 31 is turned off to notify the user of the end of the work. The solenoid valve 28 is closed at the same time when the motor 16 stops, and shuts off the air supply to the air cylinder 14. In the cylinder 16 with no air supply, the rod in the extended state gradually returns. Accordingly, the boom 7 held at the inclination of the angle α returns to the normal rising state with the biasing force of the spring 13 also applied,
The vacuum cleaner again waits for the coin to be inserted.

The present invention is not limited to the above embodiment, and various embodiments can be considered. In the above embodiment, the compressor, which is the supply source of the compressed air, is connected from the outside of the vacuum cleaner, but the same applies to the type built in the main body.

Also, a double-acting air cylinder is used in place of the spring that urges the boom in the rising direction, and the pipeline 24b communicating with the air cylinder is branched via a switching valve to switch on the device. There is also a method in which the boom 7 is tilted by opening the pipe on the side where the rod of the cylinder extends, and when the end of the work is detected by the timer, the pipe on the side where the rod contracts is opened to return the boom 7 to the normal state.

Further, it is conceivable to attach a microswitch to the nozzle storage case and open the solenoid valve 28 when it is detected that the nozzle has been taken out of the storage case.

[Effect of the Invention] As described above, in the vehicle cleaner of the present invention, the air cylinder that expands and contracts by compressed air causes the boom to tilt, and the open / close valve that opens and closes the compressed air supply pipe is provided. The on-off valve is opened and closed at a predetermined timing. Therefore, during the cleaning operation, the boom is placed in the tilted state, and the user can perform the dust collection operation without receiving the force for returning to the normal rising state. As a result, the amount of work can be reduced, the operability can be improved, and the fatigue, especially for a weak person, can be minimized.

Further, the stress applied to the connection part between the suction hose and the boom and other connection parts is reduced, and the life of the hose is extended, so that the running cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an external view of a vehicle cleaner provided with the present invention. FIG. 2 is an enlarged view showing the device of the present invention in detail, and FIG.
Indicates a normal state, and (b) indicates a tilted state. FIG. 3 is an explanatory diagram showing an internal configuration of the vacuum cleaner. FIG. 4 is a block diagram showing a controller of the embodiment. 7 ... Boom, 8 ... Suction hose, 9 ... Suction nozzle, 14 ... Air cylinder, 15 ... Suction device, 24 ... Compressed air introduction pipe line, 28 ... Electromagnetic valve as pipe open / close valve.

Claims (1)

(57) [Scope of request for utility model registration] 1. A boom which is provided inside a main body, has a suction device and a compressed air introduction pipe, communicates with the suction device and rises upward from a top portion of the main body, and a boom extending from a base end of the boom to a distal end portion. In a vehicle cleaner having a suction hose having a suction nozzle suspended, an air cylinder for vertically tilting a boom at a top portion of a main body is provided, and the compressed air introduction pipe is connected to the air cylinder and the pipe is connected to the air cylinder. An on-off valve for opening and closing a pipe in a road, and the on-off valve is opened in conjunction with the start of operation of the main body.