JP2003261190A - Electric spray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric spray which is excellent in operativity, does not cause liquid leakage even if it tumbles, and can be attached to either a dedicated bottle or a general-purpose bottle for use. <P>SOLUTION: A bottle 1 for receiving a liquid to be sprayed and a case 3 accepting a pump 20 and a power source 30 are detachably coupled via a joint 2. A switch 60 is operated by a control part 40 provided on the case 3 to supply power to a motor of the pump 20 from the power source 30 to activate the pump 20 for spraying. The joint 2 has a joint, a thread diameter of the dedicated bottle and pitches in common with those of the general-purpose bottle, to allow both the dedicated bottle and the general-purpose bottle to be coupled and used. Since a valve member 9 closes an air vent of a packing of the bottle 1 except when the control part 40 is operated, the liquid does not leak even if the spray tumbles. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sprayer used for cleaning, horticulture, etc. and spraying various liquids such as detergents and insecticides in a mist form.

[0002]

2. Description of the Related Art It has been known that a small sprayer contains a liquid detergent that is used daily for cleaning homes, a lustrous liquid wax for caring for furniture, an insecticide for gardening, etc. Has been. FIG. 5 shows an example thereof. Reference numeral 100 is a bottle in which a liquid such as detergent is stored.
The upper end portion of the bottle has a small diameter to be a grip portion 100a so that it can be easily gripped by a hand and can be attached to and detached from the pump 102 by a joint 101 provided with a screw. The pump 102 is provided with a lever 103 arranged so as to be positioned in front of the grip portion 100a, and by manually operating the lever 103, the pump 102 operates to spray the content liquid from the nozzle 104.

[0003]

In such a conventional sprayer, it is necessary to hold the sprayer with one hand and repeatedly operate the lever 103 with the held hand. In the case of spraying, the operator is tired of repeatedly operating the lever and cannot perform continuous work. Especially for the elderly, it is a difficult task. In addition, since the lever is frequently used, the probability of failure or damage increases. Also, as a so-called spray can,
There is also one in which another gas is pressurized and sealed, but it is uneconomical because it becomes disposable if the gas is exhausted as is known. On the other hand, although there is an electric sprayer that is not manual, there is a dedicated tank or bottle, and the combination cannot be changed. Further, when the conventional sprayer is laid on its side, the liquid may leak and pollute the surrounding area. The present invention enables such a conventional atomizer to be used by the user without feeling tired, reduces the probability of failure or damage, is economical, and has no liquid leakage even when it falls. The task is to

[0004]

In order to solve this problem, the present invention is an electric type having a small motor, in which the pump is driven by a power source such as a dry battery so that a manual operation is not required, and the pump is accommodated. Regarding the joint that detachably connects the case and the bottle portion that contains the spray liquid, the diameter and pitch of the screw of the joint and the dedicated bottle are common to the general-purpose bottle, and the bottle portion is the dedicated bottle and the general-purpose bottle. Both can be used.
As a result, continuous spraying is performed only by operating the operating part such as the lever once, and an electric sprayer as convenient as a spray can conventionally used is obtained. Further, it is possible to obtain an economical electric atomizer which can use not only a bottle for containing a liquid but also a wide variety of bottles.

Further, a valve member that opens and closes in conjunction with the operation of the operating portion is provided in the air circulation hole of the packing that normally closes the bottle opening so that the liquid does not leak even if the sprayer falls over. Since the valve member opens the air circulation hole by the operation of the operation portion, there is no hindrance to the pump operation.

Further, in the case, when the bottle part and the case are joined together, the lower surface of the rear part projects rearward from the joint, and when the sprayer is gripped across the joint and the bottle part, the rear lower surface is hooked on the back of the gripped hand. To do so. Since the shape is easy to hold during use, user fatigue is reduced. In addition, the battery holder for accommodating batteries such as dry batteries as a driving source of the motor is configured to be accommodated in the case, or a cable separate from the case that can be attached to a waist belt or the like. Configure to connect with.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION (Embodiment 1) The invention according to claim 1 of the present invention comprises a bottle portion containing a liquid to be sprayed,
A case that has a pump section with a small motor, a nozzle is arranged at the tip, a joint that detachably connects the bottle section and the case by screwing the screw on the outer circumference of the bottle section with the screw on the inner circumference, and the case section. It is possible to operate with one hand in preparation for the operation, the operation part for opening and closing the circuit connecting the power supply part and the motor by this operation, and a battery such as a dry battery as a drive source of the motor is housed in the case. A battery holder that is housed or separately connected to the case with an electric wire, and is an electric sprayer, wherein the diameter and pitch of the screw on the inner circumference of the joint,
It is characterized in that the diameter and pitch of the screw on the outer circumference of the dedicated bottle tip is the same as the screw on the outer circumference of the tip of a general-purpose bottle, and the bottle portion can be used for both the dedicated bottle and the general-purpose bottle. The switch is turned on to operate the electric pump and spraying is performed only by operating the operating section with one hand, and the operator is not fatigued even if the work is continued. In addition, since the bottle portion to be used can be a dedicated bottle or a general-purpose bottle, it also has the effect of being economical.

FIG. 1 is a front view and FIG. 2 is a partially exploded perspective view. In FIG. 1, 1 is a bottle that is a liquid case, 2 is a joint that detachably connects the bottle and a case described later, and 3 is a case that accommodates a pump, a power supply unit, etc., and each part is formed of resin. It is a structure that is assembled so as to be sequentially stacked from the bottom to the top.

The bottle 1 is a tank formed by blow molding for containing a liquid to be sprayed, has a so-called bottleneck shape with a small diameter near the upper end, has an open tip, and the outer periphery of the edge will be described later. A screw for assembling the case is formed. Inside the case 3, a pump 20 driven by a small motor and a power source unit 30 such as a dry battery serving as a power source of the motor are housed. The front end of the case 3 is a spray output port, and is configured as a nozzle adjustment ring 17. A joint portion (not shown) for attaching to the upper portion of the bottle 1 via a joint 2 is extended on the lower surface of the case 3, and the joint 2 is assembled here. The joint 2 has a structure in which it is engaged with a flange of an extending portion (not shown) and does not fall off, but is assembled so as to be movable up and down. Since such a structure is known, a detailed description thereof will be omitted.
A packing (not shown in FIG. 1) is provided at the lower end of the joining portion to seal the opening at the upper end of the bottle at the time of joining.

As described above, the joint 2 does not fall off from the extended portion of the case 3, but is constructed so that it can be moved up and down. A screw (not shown) is provided. The bottle 1 and the case 3 can be attached to and detached from each other by twisting the joint 2 using this screw for supplementing the spray liquid or for discharging the excess liquid.

A large number of finger-holding grooves 2a are formed on the outer peripheral surface of the joint 2 so that the sprayer can be easily held when gripped by hand and is hard to slip when twisted.

FIG. 2 shows the structure of the pump 20. Pump 2
In the present embodiment, 0 is configured as a so-called gear pump, 10 is a pump housing of a gear pump, and the gear pump includes a plurality of transmission mechanism gears 13 housed in the pump housing 10 and a pair of pump mechanism gears 14. The pump housing 10 has a structure in which openings at both ends of the pump housing 10 are closed by a motor bracket 12 to which a motor 11 is attached and a nozzle bracket 16 in which a nozzle 15 is arranged, respectively, by means such as screwing. Note that 11
a is a motor shaft gear attached to the shaft of the motor 11,
It meshes with the transmission mechanism gear 13 and transmits the driving force of the motor 11 to the pump mechanism gear 14 via the transmission mechanism gear 13. Reference numeral 17 denotes a nozzle adjustment ring that adjusts the diameter of the nozzle 15 by screwing it into the tip of the nozzle 15 and rotating it to adjust the spray state. Since the structure of such a gear pump is well known, its detailed description is omitted.

In the assembly of the pump portion of the electric sprayer of the present invention having such elements, the motor having the transmission mechanism gear 13 assembled from one opening side of the pump housing 10 and the motor 11 attached thereafter. Assemble the bracket 12. Also, the pump housing 10
The pump mechanism gear 14 is attached to the opening side opposite to the above, and then the nozzle bracket 16 to which the nozzle 15 has been attached is attached. The suction pipe 8 is fitted in the pipe 10a at the lower end of the pump housing 10. The pump housing 10 and the like assembled in this manner are incorporated into the case 3. Such a pump portion is referred to as a pump mechanism 20. A nozzle adjusting ring 17 is screwed into the tip of the nozzle 15.

An operation unit 40 is also attached to the case 3. In the present embodiment, the operation unit 40 has a lever shape, is arranged at a position in front of the joint 2, is rotatably attached to the case 3 by a fulcrum 40c, and an end 40d inside the case 3 is inside the case 3. When the operation unit 40 is operated by engaging an actuator (not shown) of the switch 60 of
This is a structure in which it is pressed to operate.

The operating portion 40 also operates the valve member 9 which is an air vent valve. 6a is a valve opening / closing link rod,
The valve member 9 is provided at the bent other end.
The valve member 9 is formed of a rubber-like elastic material and has a columnar shape with a taper whose diameter is expanded downward, and this portion is shown in an enlarged sectional view in FIG. According to FIG. 5, a screw hole into which the screw 6d formed at the tip of the valve opening / closing link rod 6a is screwed is formed on the upper surface of the air vent valve 9. On the other hand, the packing 5 that closes the opening of the bottle 1 is also provided with a hole 5a through which the valve opening / closing link rod 6a penetrates, and the hole 5a is projected toward the upper surface to be tapered as understood from FIG. When the valve opening / closing link rod 6a is displaced upward, the valve member 9 is fitted exactly and the hole 5a is provided.
Is configured to be closed.

After water to be sprayed or a liquid such as a medicine is poured into the bottle 1, the case 3 is assembled from above. As mentioned above, the assembly is done with the screw on the outer periphery of the upper end of the bottle 1,
It is performed by screwing together the screws on the inner circumference of the joint 2.

When the sprayer is used, the case 1 is grasped by one hand and the operating portion 40 is operated forward by a finger (usually an index finger). The switch 60 is turned on and the power supply unit 30 and the motor 11
And are electrically connected. Further, since the valve opening / closing link rod 6a is displaced and the valve member 9 is separated from the hole 5a of the packing 5, the hole 5a is in an open state, and air is allowed to circulate in the bottle 1, which does not hinder the operation of the pump.

The shaft of the motor 11 rotates, and the rotation is transmitted to the pump mechanism gear 14 via the transmission mechanism gear 13.
The gear pump operates to suck up the liquid in the bottle 1 through the suction pipe 8 and eject it from the nozzle 15. Nozzle adjustment ring 17
You can select by rotating.

When the finger is released from the operating portion 40, the operating portion 40 is restored by the urging force of a spring (not shown), and the pressing of the switch 60 is released, so that the switch 60 opens the circuit, the motor 11 is stopped and the spraying is stopped. To be done. The valve opening / closing link rod 6a is displaced, the valve member 9 closes the hole 5a of the packing 5, and the hole 5a is closed, so that the liquid in the bottle 1 will not leak even if the sprayer falls over.

As described above, the electric sprayer of the present invention has the same usability as the conventional spray can.

In the above description, the battery used as the power source is
Although the example in which it is configured to be housed in the upper part of the case 3 has been described, it is not necessary to specify the position to be arranged in the case 3 such as the upper and lower surfaces or the side surfaces. Further, as a battery case, a case separate from the case 3 may be provided and fixed and arranged at an appropriate position on the outer surface of the case 3, or it may be attached to a waist belt, for example, as a completely separate body. A battery case may be provided, and the switch and the motor in the case 3 may be connected by an electric wire.

Although the operating portion 40 has a lever shape, it may have a push button shape without any problem.

Furthermore, for the case 3 having the pump 20, it is easy to adapt from a special bottle to a variety of general-purpose bottles by preparing several kinds of joints 2 with different screw specifications. .

(Embodiment 2) In the invention according to claim 2 of the present invention, in the above-mentioned Embodiment 1, the joint is provided with packing and the bottle portion is airtight when the bottle portion and the case are joined. The operation section is watertightly closed, and the operation section is configured to open the normally closed air vent hole by displacing the valve member during operation through a link mechanism. Since this configuration is also described in the description of the first embodiment,
Although duplication is omitted, according to the second embodiment, since it is normally closed, the liquid in the bottle does not leak to the outside even if the sprayer may be left lying down. Since it is opened during operation, there is no problem in pump operation.

(Embodiment 3) In the invention according to claim 3 of the present invention, in the above-mentioned Embodiments 1 and 2, the lower surface of the rear part of the case is located rearward of the joint when the bottle part and the case are joined together. It is overhanging, and when the sprayer is gripped across the joint and the bottle part, the rear lower surface is hooked on the back of the gripped hand.

FIG. 3 is a view showing a state in which the sprayer having such a shape is held, where 70 is the sprayer and 71 is the hand of the person holding the sprayer. 70a is a rear lower surface of the case 3 and is shaped so as to project rearward from the joint 2, so that it abuts on a part 71a of the back of a person who holds it and is very easy to hold. Figure 4 shows part 7 of the back of the hand
1a is a diagram. Try to hook it here when you have it.

[0027]

As described above, according to the present invention, the bottle portion for containing the liquid to be sprayed, the pump portion having the small motor, and the power source portion for loading the battery such as the dry battery as the driving source of the motor. And a case in which the nozzle is arranged at the tip, a joint for detachably connecting the bottle portion and the case by screwing with a screw on the tip outer periphery of the bottle portion with a screw on the inner circumference, and one hand provided for the case portion An electric sprayer that is operable and that has an operation unit that opens and closes a circuit that connects the power supply unit and the motor by this operation, including the diameter and pitch of the screw on the inner circumference of the joint, and the outer circumference of the dedicated bottle tip. The diameter and pitch of the screw are the same as the screw on the outer circumference of the tip of the general-purpose bottle, and the bottle part can be used for both the dedicated bottle and the general-purpose bottle. Without the operation, carried out by the motor, without that the user can feel the fatigue, it is also possible to continuously work. Also, by attaching to a general-purpose bottle and using it, a great effect of improving the economical efficiency can be obtained.

Further, the joint is provided with packing, and when the bottle part and the case are joined together, the bottle part is closed airtightly and watertightly, and the operating part is provided with a normally closed air vent hole through a link mechanism. Since the valve member is opened by displacing it during operation, it is normally closed, so the liquid inside the bottle will not leak to the outside even if the sprayer is left lying down. Does not pollute the surroundings. Further, since it is opened at the time of operation, it does not hinder the pump operation.

Further, in the case, when the bottle part and the case are joined together, the lower surface of the rear part projects rearward from the joint, and when the sprayer is held across the joint and the bottle part, the rear lower surface is hooked on the back of the held hand. Since it is configured as described above, it is possible to provide a sprayer that is very easy to hold and has good usability.

[Brief description of drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a partially exploded perspective view of the present invention.

FIG. 3 is an explanatory diagram of a gripping state of the present invention.

FIG. 4 is an explanatory diagram of a gripping state of the present invention.

FIG. 5 is a partial sectional view of an embodiment of the present invention.

FIG. 6 is an external view of an example of a conventional sprayer.

[Explanation of symbols]

1 bottle 2 joint 3 cases 8 suction pipe 9 Air vent valve member 20 pumps 30 power supply 40 Operation part 60 switch

Claims (3)

[Claims] 1. A bottle part for containing a liquid to be sprayed, a pump part provided with a small motor, a case in which a nozzle is arranged at the tip, a screw on the tip of the bottle part is screwed to a screw on the tip part of the bottle part, and a bottle is attached. And a joint that is detachably coupled to the case, an operation unit that is provided in the case unit and can be operated with one hand, and an operation unit that opens and closes a circuit that connects the power supply unit and the motor by this operation, and a drive source of the motor. An electric sprayer, comprising: a battery holder, which is housed in the case or separately connected to the case by an electric wire, as a power source section for housing a battery such as a dry cell of The diameter and pitch of the screw and the diameter and pitch of the screw on the outer circumference of the dedicated bottle end are the same as those on the outer circumference of the end of the general-purpose bottle, and the bottle part is the dedicated bottle and the general-purpose bottle. Both electric sprayer, characterized in that the usable both with. 2. The joint is provided with packing, and when the bottle part and the case are connected, the bottle part is closed airtightly and watertightly, and the operation part is provided with an air vent hole which is normally closed via a link mechanism. The electric sprayer according to claim 1, wherein the valve member is displaced and opened during operation. 3. The case has a rear lower surface protruding rearwardly of the joint when the bottle portion and the case are joined together,
When gripping the sprayer across the joint and bottle,
The electric sprayer according to claim 1, wherein the back surface of the rear portion is hooked on the back of the gripped hand.