JP2003033684A - Automatic spray apparatus for aerosol can - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a housing case from being opened even if a spray nozzle is pushed forward from the back side by a plunger of a solenoid to spray an aerosol agent in an automatic spray apparatus for an aerosol can, which is composed of the aerosol can provided with the erected cylindrical spray nozzle attached to a tilt valve, the housing case of the aerosol can, which houses the aerosol can to be erected and has a discharge port for discharging the aerosol agent sprayed from the spray nozzle to an upper wall to the outside, and a push type solenoid provided at the back side of the spray nozzle of the aerosol can in the housing case and for spraying the aerosol agent from the spray nozzle by pushing the spray nozzle forward with the plunger by exciting to displace the tilt valve to open. SOLUTION: The housing case 20 for the aerosol can 10 is constituted of a rear case 20A housing the aerosol can to be erected and a front case 20B which closes the front surface of the rear case normally and opens the front surface of the rear case by turning round to stand upside down on the upper wall 26A of the rear case.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an automatic spraying device for aerosol cans.

[0002]

2. Description of the Related Art The applicant of the present patent application is Japanese Patent Application No. 2000-306.
No. 097, an aerosol can automatic spraying device shown in FIG. 6, that is, an aerosol can 10 having a cylindrical spray nozzle 12 attached to a tilt valve 13 and standing upright, and the aerosol can uprightly accommodated, and an upper wall A storage case 20 of an aerosol can having a discharge port 21 for discharging the aerosol agent sprayed from the spray nozzle 12 to the outside, and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can. As described above, an automatic spray device for an aerosol can is proposed, which is configured by pushing the spray nozzle forward with the plunger 31, displacing the tilt valve 13, opening the valve, and a push solenoid that sprays the aerosol agent from the spray nozzle. The storage case has a front door 20 'that can be opened and closed by a hinge, and the aerosol can 10 stands upright on a middle bottom plate 22 of the storage case, and a partition plate 23 divides the bottom of the middle bottom plate into upper and lower chambers. The controller 24 includes a switch, and the lower chamber accommodates a battery 25 as a power source. The battery control device is connected to the push type solenoid 30 by a lead wire, the switch opens and closes the power source, and the control device 24 controls the energization time (excitation time) of the solenoid 30 and the energization interval.

[0003]

The above-mentioned proposed automatic spraying device for aerosol cans works as it is, but it will be more excellent if the following points are improved. In order to spray the aerosol agent, even if the plunger of the solenoid pushes the spray nozzle of the aerosol container from the back to the front, the front door of the storage case does not open, and the storage case is fully opened from the front to replace the aerosol can or solenoid. make it easier. The spray nozzle of the aerosol can, which is stored upright in the storage case, is prevented from protruding upward from the discharge port on the upper wall of the storage case, and the discharge port is formed into a mortar shape that expands upward, and the spray nozzle Prevents the aerosol agent sprayed from adhering around the discharge port on the upper wall of the case. Prevents aerosol cans stored upright in the storage case from floating in the case. By pushing the solenoid from the front, it can be easily set in the storage case. A biasing force that assists the push solenoid plunger to push the spray nozzle from behind to spray the aerosol agent from the spray nozzle of the aerosol can by flexing and opening the tilt valve against its own bias. By providing the member, a small-sized and inexpensive solenoid can be used, and power consumption can be reduced. The solenoid plunger moves forward when the solenoid is energized and pushes the spray nozzle forward from behind, which causes the tilt valve to displace (deflect) and spray aerosol agent from the spray nozzle, but the solenoid is demagnetized. Then, the restoring force of the tilt valve causes the plunger to retract, and at that time, the rear end of the plunger is prevented from colliding with the rear wall of the storage case and generating sound. Controls the spray direction of the aerosol from the spray nozzle.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, an aerosol can provided with a cylindrical spray nozzle attached to a tilt valve and standing upright, and the aerosol can is housed upright, and the spray nozzle is installed on the upper wall. A storage case of an aerosol can having a discharge port for discharging the aerosol agent to be sprayed to the outside, is provided behind the spray nozzle of the aerosol can in the storage case, and pushes the spray nozzle forward by the excitation,
An automatic spraying device for an aerosol can, which comprises a push solenoid for spraying an aerosol agent from a spray nozzle by displacing a tilt valve and opening the valve, improves the above-mentioned respective points. The storage case is a rear case that holds the aerosol can upright,
Although the front of the rear case is normally closed, it is characterized by a front case that is inverted on the upper wall of the rear case to open the front of the rear case when inverted. According to a second aspect of the present invention, the position of the upper wall of the storage case is set higher than the upper end of the spray nozzle of the aerosol can housed in the storage case so that the spray nozzle does not project upward from the upper wall of the storage case. At the same time, the discharge port of the aerosol agent provided on the upper wall of the aerosol container is shaped like a mortar, and the shape thereof increases upward. Claim 3
The inner surface of both side walls of the storage case is provided with a restraining piece that is in sliding contact with the upper surface of the stored aerosol can or the shoulder of the can body to prevent the aerosol can from floating in the storage case. To do. According to a fourth aspect of the present invention, a support wall is provided below the upper wall of the storage case to support the solenoid by slidingly contacting the solenoid from both sides and the lower side. One of the support walls has elasticity and the solenoid is supported when the solenoid is supported. Is provided with a pawl that engages the front end of the and prevents the solenoid from escaping forward. A fifth aspect of the present invention is characterized in that a biasing member that pushes the plunger forward is provided between the rear end of the solenoid plunger and the rear wall of the housing case. According to a sixth aspect of the present invention, when the solenoid is demagnetized between the rear end of the solenoid plunger and the rear of the housing case and the plunger is retracted by the restoring force of the tilt valve, the rear end of the plunger becomes the rear wall of the housing case. A cushioning member for cushioning a collision is provided, and a cylindrical soundproof wall that includes the cushioning member and surrounds the rear end portion of the plunger so as to be movable back and forth is provided on the rear wall of the storage case. A seventh aspect of the present invention is characterized in that an oblique taper portion facing the spray direction is provided at the spray port on the upper wall of the spray nozzle of the aerosol can.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the illustrated embodiment, the same components as those of the above-mentioned prior proposal of FIG. The storage case 20 has a bottom, an insole 22, and a partition plate 2.
3 includes a rear case 20A having an open front surface and a front case 20B that closes the front surface of the rear case. The front case normally closes the front surface of the rear case (FIG. 1D), but when it is reversed, the front case shown in FIG. ),
The rear case is opened upside down on the upper wall of the rear case (Claim 1). The storage case is fixed to the wall surface with double-sided tape provided on the outer surface of the rear wall of the rear case.

The front case and the rear case have upper walls 26A and 26B which prevent the upper surfaces of the two cases when the front case is closing the front surface of the rear case, and a discharge port 21 for discharging the aerosol agent to the outside of the case. Are formed so as to straddle both upper walls. The heights of the upper walls 26A and 26B are located above the upper end of the spray nozzle 12 of the aerosol can 10 which is upright on the insole plate 22, and the discharge port 21 is shaped like a mortar that increases upward (claim) Item 2).
As a result, when the spray nozzle protrudes upward from the storage case, the spray nozzle is pushed during packaging and transportation, the tilt valve is displaced, and it is possible to prevent unnecessary spraying of the aerosol agent, and the sprayed aerosol can be prevented. It prevents the agent from sticking to the inner circumference of the discharge port and sticking.

As shown in FIG. 1A, the front case 20B is inverted on the upper wall 26A of the rear case to open the front surface of the rear case. Therefore, the rear case and the front case are molded separately, Rear facing arms 27 may be provided on both sides of the upper wall of the case, and the rear ends of both arms may be pivotally attached to both sides of the upper wall of the front case with pins or the like (see FIG. 1D), or the rear case and the front case. May be integrally formed by connecting the upper walls 26A and 26B of both cases, and a thin hinge 26 'may be provided at the boundary between the upper walls 26A and 26B (see FIG. 2C).

Rear case 20A, front case 20
1B is provided with spigot engaging portions 28 that engage with each other in the stepped cross section shown in FIG. 1B, and the lower end portions of the both side walls are shown in FIG. 1C. Concavo-convex engaging part 2
9 is provided, and when the front case 20B is inverted and opened, the lower end portions of both side walls of the front case are pinched with fingers and pushed inward as shown by an arrow, and the inner surfaces of the lower end portions of both side walls of the rear case are formed. When the convex engaging part of the front case is released from the concave engaging part that is open, then flip it upward to open it, and then invert it on the upper wall of the rear case to open it. The convex engaging portions on both side walls of the case elastically engage the concave engaging portions of the rear case by elastically bending the side walls inward. When the front case is closing the open front surface of the rear case, the spigot engaging portions 28 engaged with each other prevent the inside of the case from being seen from the outside, and dust and dirt from the outside enter the inside of the case. Prevent.

The width between the inner surfaces of the left and right side walls of the rear case 20A is slightly wider than the diameter of the aerosol can. Then, in order to prevent the aerosol can placed on the middle bottom plate 22 from floating on the middle bottom plate even if the spray nozzle 12 is hit from behind by the plunger 31 of the push solenoid, the inner surface of the left and right side walls of the rear case is prevented. Is provided with a pair of restraining pieces 41 for restraining the shoulder 11 'of the can body 11 (claim 3). Therefore, place the aerosol container on the inner bottom plate of the rear case,
When it is moved backward, the shoulder 11 'of the can body is restrained by the restraining pieces 41, 4
It is in sliding contact with the lower surface of 1 and stands upright on the insole plate.

In order to support the solenoid on the upper inner surfaces of the upper wall and the rear wall of the rear case, a pair of L-shaped and L-shaped opposite side support walls 41, 41 and the rear wall of the rear case are provided. An elastic lower surface support wall 42 that protrudes forward is provided, and the lower surface support wall 42 has an upward claw 42 ′ at the front end.
(Claim 4). Since the claws 42 'are provided, the lower surface support wall 42 is bent downward so that the three support walls 41, 41,
The solenoid 30 can be pushed and stored in the space surrounded by 42 and the inner surface of the upper wall of the rear case. At this time, the L-shaped and L-shaped opposite side support walls 41, 4 face each other.
1 supports each side of the solenoid and the lower corner (corner), and when the front end of the solenoid passes backward over the claw 42 ', the lower supporting wall 42 that has been bent up to that point is elastically restored, 42 'has a stored solenoid with supporting walls 41, 4
Prevents escape from the front between 1 and 42. When the solenoid is taken out for replacement or the like, the solenoid may be pulled forward by holding the plunger protruding from the front end of the solenoid, and the lower surface support wall 42 having the claw 42 'may be bent downward and pulled out.

In order to prevent the aerosol container placed on the inner bottom plate 22 from floating, a pair of restraining pieces 41 for restraining the shoulders 11 'of the can body are provided on the inner surfaces of the left and right side walls of the rear case. In addition, or independently, as shown in FIG. 3, a pair of L-shaped and inverted L-shaped side supporting walls 42, 42 supporting the solenoid 30 and a lower surface supporting wall 43 are provided on the lower surfaces of the front end portions of the upper surfaces of the aerosol cans. The upper surface 10 'of the aerosol can is slid on the lower surfaces of the front end portions of the pair of L-shaped and inverted L-shaped supporting walls 42, 42 for supporting the solenoid as shown in FIG. The function of the restraining piece 41 may be provided.

As shown in FIG. 3A, a coil is provided between the rear end of the solenoid plunger 31 and the rear wall of the rear case 20B as a biasing member 44 for pushing the plunger forward in the illustrated embodiment. A spring is arranged (Claim 5). The force of the biasing member 44 that pushes the plunger forward may be about half the force that moves the plunger forward by the excitation of the solenoid, and thus the biasing member may push the plunger forward with its own force. However, when the plunger is moved forward by magnetic force, it is added to the magnetic force of the solenoid. Therefore, the solenoid 30 has a small size, and the force of the plunger is weak.
2 can be pushed forward, the tilt valve can be displaced to spray the aerosol agent, and power consumption can be reduced.

As described above, the plunger is moved forward by the exciting action of the solenoid to push the spray nozzle 12 from the rear side, and the spray nozzle is tilted forward as shown by the broken lines in FIGS. 13 is opened by bending (displaced) forward against the bias of 13 (valve opening time can be adjusted by the control device 24, for example, between 0.05 and 0.2 seconds), and the valve is being opened. Then, the aerosol agent is sprayed from the spray port 14 on the upper surface of the spray nozzle. When the solenoid is demagnetized and the solenoid is demagnetized, the tilt valve 13 retracts the plunger 31 via the spray nozzle by the restoring force that tends to make it stand, and the tilt valve and the spray nozzle stand upright. At this time, the rear end of the plunger 31 collides with the rear wall of the rear case and produces a collision sound. In order to suppress this collision noise, a cushioning member 45 such as rubber or sponge is provided between the rear end of the plunger and the position of the rear wall of the rear case where the rear end collides. A cylindrical soundproof wall 46 surrounding the rear end portion so as to be movable back and forth is fixed forward to the rear wall of the rear case (claim 6). Although the cushioning member 45 is fixed to the rear wall of the rear case in the embodiment of FIG. 4, it may be fixed to the rear end of the plunger 31.

As a result, the collision noise with the rear wall of the rear case generated when the solenoid plunger 31 retracts via the spray nozzle due to the restoring force of the tilt valve is suppressed and becomes almost inaudible.

The coil spring as the urging member 44 shown in FIG. 3 is also effective in suppressing the noise of collision with the rear wall of the rear case generated when the plunger retracts. Therefore, also in this case, the coil spring is included. When the cylindrical soundproof wall 46 surrounding the rear end of the plunger so as to be movable back and forth is fixed to the rear wall of the rear case in a forward direction, the effect of suppressing the collision noise is further enhanced. If the coil spring is housed in the cylindrical soundproof wall 46, the number of steps for fixing the coil spring to the rear end of the plunger or the rear wall of the rear case can be saved.

In order to control the spraying direction of the aerosol agent from the spraying nozzle, as shown in FIG. 5, an oblique taper portion 1 directed in the spraying direction is formed at the spraying port 14 on the upper wall of the spraying nozzle.
4'is provided (Claim 7). In the illustrated embodiment, the spray direction is forward, so the taper portion 14 'is provided forward.
Thereby, the aerosol agent sprayed from the spray port 14 can be concentrated forward.

[0017]

According to the present invention, even if the plunger of the solenoid for spraying the aerosol agent pushes the spray nozzle of the aerosol container from the back to the front, the front door of the storage case does not open, and the storage case is fully opened from the front. An automatic spray device for aerosol cans can be obtained in which the replacement of aerosol cans and solenoids is easy. According to claim 2, the spray nozzle of the aerosol can, which is housed upright in the storage case, does not project upward from the discharge port of the upper wall of the storage case, and the discharge port has a mortar shape whose shape expands upward. An automatic spray device for an aerosol can is obtained in which the aerosol agent sprayed from the spray nozzle does not adhere around the discharge port on the upper wall of the case. According to the third aspect, the aerosol can automatic spraying device can be obtained in which the aerosol can that is stored upright in the storage case does not float in the case. According to the fourth aspect, an automatic spraying device for an aerosol can can be obtained which can be easily set in the storage case by pushing the solenoid from the front. According to the present invention, the tilt valve is bent against the self-biasing force to open the valve, and the plunger of the push-type solenoid pushes the spray nozzle from the back to the front in order to spray the aerosol agent from the spray nozzle of the aerosol can. An automatic spraying device for an aerosol can is obtained in which a small and inexpensive solenoid can be used by providing a biasing member that helps the aerosol can and power consumption can be reduced. According to claim 6,
When the solenoid is excited, it moves forward and pushes the spray nozzle forward from behind, and when the plunger sprayed with the aerosol agent from the spray nozzle is retracted by the restoring force of the tilt valve, the rear end of the plunger collides with the rear wall of the storage case. As a result, an automatic aerosol can spraying device that suppresses the generation of sound can be obtained. According to the seventh aspect, it is possible to obtain an automatic spraying device for an aerosol can in which the spraying direction of the aerosol agent from the spraying nozzle is controlled to a predetermined direction and the spraying can be concentrated in that direction.

[Brief description of drawings]

1A is a vertical cross-sectional side view with a front case open, FIG. 1B is a cross-sectional view taken along line BB of FIG. 1A,
Similarly, (C) is a cross-sectional view taken along the line CC, and (D) is a perspective view with the front case closed.

FIG. 2 (A) is a partial cross-sectional plan view of a main part showing a first example of a pivotally attached state of a front case and a rear case, and FIG. 2 (B) is a partial cross-sectional plan view of a main part showing the second example. C) is a perspective view showing a third example.

FIG. 3A is a side view of a solenoid supporting the rear case and a longitudinal section of a main portion showing a biasing member, and FIG. 3B is a front view of the same.

FIG. 4 is a vertical cross-sectional side view of essential parts showing a cushioning member and a supporting state of a solenoid with respect to a rear case.

5A is a vertical side view of the spray nozzle, and FIG. 5B is a plan view of the spray nozzle.

FIG. 6 is a vertical sectional side view of an automatic spraying device for an aerosol can according to the prior proposal.

[Explanation of symbols]

10 Aerosol Can 10 'Aerosol Can Top 11 Aerosol Can Can 11' Can Shoulder 12 Spray Nozzle 13 Tilt Valve 14 Spray Port 20 Storage Case 20A Storage Case Rear Case 20B Storage Case Front Case 21 Outlet 22 Bottom plate 23 Partition plate 24 Control device 25 Battery 26A Rear case upper wall 26B Front case upper wall 26 'Hinge 28 Front case and rear case inlay engaging portion 29 Front case and rear case uneven engaging portion 30 Push-type solenoid 31 Push-Type Solenoid Plunger 41 Suppression Piece 42 Solenoid Side Support Wall 43 Solenoid Lower Support Wall 43 'Solenoid Claw 44 Energizing Member 45 Cushioning Member 46 Cylindrical Soundproof Wall

Claims (7)

[Claims] 1. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is stored upright, and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an automatic aerosol can spraying device consisting of a push-type solenoid that sprays an aerosol agent from a nozzle, the storage case of the aerosol can is a rear case that stores the aerosol can in an upright position, and always keep the front of the rear case closed. However, when it is turned upside down, it stands upright on the upper wall of the rear case and opens the front of the rear case. Automatic spray device for aerosol cans. 2. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is stored upright and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an aerosol can automatic spray device consisting of a push type solenoid for spraying an aerosol agent from a nozzle, the position of the upper wall of the storage case is set higher than the upper end of the spray nozzle of the aerosol can stored in the storage case, Do not project upward from the upper wall of the storage case, and the aerosol agent discharge port provided on the upper wall of the aerosol container is directed upward. Automatic spraying device for aerosol cans, which is shaped like a mortar that increases in size. 3. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is held upright and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an automatic aerosol can spraying device consisting of a push-type solenoid that sprays an aerosol agent from a nozzle, the inside surface of both side walls of the storage case is slidably contacted with the upper surface of the stored aerosol can or the shoulder of the can body. An automatic spray device for an aerosol can, which is provided with a restraining piece for preventing the aerosol can from floating inside the case. 4. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is stored upright, and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an aerosol can automatic spraying device comprising a push type solenoid for spraying an aerosol agent from a nozzle, a support wall is provided below the upper wall of the storage case to support the solenoid by sliding contact from both sides and the lower side, and the support wall is provided. One is elastic and has a pawl that engages the front end of the solenoid when it is supported and prevents the solenoid from exiting forward An automatic aerosol can spraying device. 5. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is stored upright and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an aerosol can automatic spraying device comprising a push type solenoid for spraying an aerosol agent from a nozzle, a biasing member for pushing the plunger forward is provided between the rear end of the solenoid plunger and the rear wall of the housing case. An automatic spray device for aerosol cans. 6. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is housed upright and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. In an automatic aerosol can spraying device consisting of a push-type solenoid that sprays an aerosol agent from a nozzle, the solenoid is demagnetized between the rear end of the solenoid plunger and the rear of the housing case, and the plunger is restored by the restoring force of the tilt valve. A cushioning member is provided to cushion the rear end of the plunger from colliding with the rear wall of the storage case when the container is retracted. An automatic spraying device for aerosol cans, characterized in that a cylindrical soundproof wall is provided on the rear wall to surround the rear end of the plunger so as to be movable back and forth, including the cushioning member. 7. An aerosol can equipped with a cylindrical spray nozzle that is attached to a tilt valve and stands upright, and the aerosol can is held upright and the aerosol agent sprayed from the spray nozzle to the upper wall is discharged to the outside. A storage case for an aerosol can having a discharge port for discharging and a spray nozzle provided in the storage case behind the spray nozzle of the aerosol can, and the excitation pushes the spray nozzle forward to displace the tilt valve to open the valve for spraying. An automatic spray device for an aerosol can, which comprises a push-type solenoid for spraying an aerosol agent from a nozzle, characterized in that an oblique taper portion directed in the spray direction is provided at the spray port on the upper wall of the spray nozzle of the aerosol can. Automatic aerosol can spraying device.