JPH11129909A - Frame of battery power type atomizer with wheels for garden - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily exchange a tank by comprising a connection joint for connecting an upper section engaged with an upper side of a liquid tank, with a lower section engaged with a lower side thereof. SOLUTION: A shaft part 302 is extended upward from a support part 311 to be connected with an upper arm 317. A connection between the shaft 302 and the upper frame 317 is achieved by inserting a connection part 319 of the upper arm 317 into the shaft 302 so that the ribs 316 are engaged with the ribs 315 of the shaft 302. The ribs 315 are arranged at both sides of the shaft 302, and the ribs 316 are arranged at both sides of the upper arm 317. This connection forms a connection joint 325, the connectors 313a, 313b are inserted through the apertures 314a, 314b in the shaft 302 and an aperture 318 of the upper arm 317, and the ribs 315 and 316 are connected by fastening the connectors, whereby the frame sections 302 and 317 are fixed together, and a liquid tank is fixed and held to the frame 300.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a portable sprayer for pressurized liquid. More particularly, the present invention relates to a garden sprayer frame and a combination of the frame and the sprayer.

[0002]

BACKGROUND OF THE INVENTION Various types of pressurized atomizers are currently available on the market. Available nebulizers generally have many disadvantages. Most portable nebulizers have limited capabilities or are cumbersome to handle. further,
Many currently available nebulizers are difficult to use because they require a manual pump. Various types of nebulizers, as described below, are currently known in the art. U.S. Pat. No. 4,925,105 discloses a rechargeable battery powered garden sprayer. The user can hold the nebulizer with a strap or handle. US Patent No. 5,
No. 014,884 discloses a nebulizer container having a piston or gear pump. Pumps are used to push fluid out of the container rather than pressurize the tank.

[0003] US Patent No. 4,618,099 discloses an electrospray device having a pump and a motor. The tank is supported by the handle. US Patent No. 4,135,6
No. 69 discloses a wheel atomizer with a pressurized liquid reservoir. U.S. Pat. No. 4,651,903 discloses a motorized pump pressurized liquid sprayer. The container pressurized by the pump is located in the center of the container.
U.S. Pat. No. 5,072,884 discloses a garden sprayer having an elliptical rod and a manual pump. U.S. Pat. No. 4,881,687 discloses a portable liquid nebulizer with a manual pump.

[0004] US Patent No. 3,901,449 discloses a portable nebulizer having a handle and a pump powered by a rechargeable battery. US Patent No. 5,150,
No. 837 discloses a backpack sprayer with a manually operated pump. U.S. Pat. No. 4,787,560,
A portable liquid sprayer having two handles is disclosed.

[0005]

SUMMARY OF THE INVENTION One object of the present invention is to provide a frame so that a user can easily and safely handle a sprayer. Another object is to provide a wheeled frame for supporting and transporting the tank. The frame and the arm combined with it,
Easy to assemble with connecting connection. Yet another object is to provide a tank that is easily removable from the frame,
This tank does not have to be filled with substances that should not be mixed. Yet another object is to provide a frame with the property of not flipping, so that when the tank is empty, the user does not have to hold the frame in place.

[0006] Yet another object is to provide a method of assembling a portable garden sprayer frame. Another object is to provide a sprayer and frame combination according to the present invention.

[0007]

SUMMARY OF THE INVENTION The foregoing and further objects have been achieved according to one aspect of the present invention, which forms a frame for supporting a fluid tank having an upper section connected to a lower section by a connecting joint. In another aspect of the present invention, there is provided a wheeled portable sprayer comprising a tank, a pump unit and a frame including a handle. In another aspect of the present invention, a frame is provided for supporting a fluid tank on the ground. The frame includes a lower support arm for engaging the tank and an extension member projecting from the lower support arm for contacting the ground when the tank is tilted, the extension member preventing the tank from tipping over. .

[0008] In another aspect of the present invention, a portable sprayer assembly is provided that includes a tank for containing a fluid and a frame for mounting the tank. The frame includes a collar for connecting the upper part of the tank, a connection joint having an adjustable connection, and two recesses for connection with two tabs on the lower part of the tank. The tank is secured to the frame when the adjustable connection is in the tightened position and is released when the adjustable connection is in the relaxed position. In accordance with another aspect of the present invention, there is provided a method of assembling a tank frame, the method comprising the steps of loosening a connecting joint between an upper and lower frame section, and inserting a tank therebetween. Separating the frame section, shortening the frame section to hold the tank, and tightening the connection joint.

[0009] Further objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or
Alternatively, it may be obtained by implementing the present invention. The objects and advantages of the invention will be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims. The drawings, which are incorporated in and constitute a part of the specification, illustrate a presently preferred embodiment of the invention and include the foregoing general description,
The following detailed description of the preferred embodiments illustrates the spirit of the invention.

[0010]

FIG. 1 is a perspective view of a spray assembly. The tank 100 is mounted on the frame 300.
The head 200 is fixed to the tank 100. Each of these three components is described in detail with the figures. 2 to 7 are other views of the nebulizer assembly. The tank 100 shown in FIG. 8 has a curved front wall 101. In the upper part of the front wall 101 is an entrance 10 with an external thread.
There are three. On the side of the tank 100 is an outlet 102 with an external thread. Lock projections 104a, 104b
Is provided at the top of the tank to lock the frame to the tank. At the bottom of the tank 100 is a support surface 1
06 is formed so as to be disposed close to the frame 300 (not shown in FIG. 8). Engagement surface 10
5 includes tabs 105a and 105b provided to engage the frame 300.

FIG. 9 is a side view of the tank 100, showing the wheel depression 111b in the side wall 110b separately. FIG. 10 is a rear view of the tank showing both the wheel walls 111a and 111b. The wheel recess extends forward from the back wall 120. FIG. 11 is a top view of the tank showing the outline of the tank 100. The tank has four side walls 10
1, 110a, 110b, and 120;
Each wall is curved. The walls of the tank 100 are formed such that a safe failure mode is provided for the tank.
The thickness of the wall varies such that the wall is thinnest at the top of the tank. Preferably, a thinner wall portion is formed at the top of the tank, below the connection portion of the frame shown in FIG. Therefore, even if a failure occurs, no leakage occurs from the bottom of the tank. In addition, the provision of a safe failure mode allows most parts of the tank to be thinner than required without the safe failure mode.

FIG. 12 is an enlarged perspective view of the frame 300. Wheels 301a and 301b are connected by an axle 310. Apertures 312a and 312b receive axle 310, as more clearly shown in FIG. A support portion 311 extends below the axle 310 (in the position shown in FIG. 12) and the shaft portion 302
Extends upward from the support portion 311 and is connected to the upper arm 317. The connecting connection between the shaft 302 and the upper arm 317 is such that the rib 316 of the upper arm is
This is achieved by inserting the connection 319 of the upper arm 317 into the shaft 302 so as to engage the two ribs 315. Ribs 315 are arranged on both sides of shaft 302, and ribs 316 are arranged on both sides of upper arm 317. This connection forms the connection joint 325 and the apertures 314a and 314b in the shaft of the upper arm.
And connectors 313a and 313b (for example, bolts and nuts) inserted through the aperture 318 of the upper arm.

By loosening the connectors 313a, 313b, the assembly can be performed with a limited degree of relative displacement between the shaft 302 and the upper arm 317,
The frame 300 can be handled so that the tank 100 can be easily replaced. Connector 3
13a and 313b are tightened to form ribs 315 and 3
16 to fix the frame sections 302 and 317 together,
To be fixedly held. In addition, the support portion 311 is provided with extension ribs 330 acting as outriggers to provide a non-repeat property. When the sprayer assembly is tilted forward, the rib extensions 330 of the support arms 311 contact the ground to spread the sprayer footprint and ensure that the center of gravity of the sprayer is within the boundaries of the footprint.

FIG. 13 further illustrates the lower portion of the elongate tube 340 which is incorporated into the joint 325 to form a unitary structure and function as a handle. The overall structure of the handle is shown in FIG. Connectors 313a and 3
When 13b is removed, the tube 340 moves up and down so that the height of the handle can be adjusted. The connection between the lower part of the tank 100 and the frame 300 is best illustrated in FIGS. 2, 10 and 12. Tank 100 is secured to support portion 311 by tabs 105a and 105b near the bottom of tank 100. Tabs 105a and 105b
Connect in support arms 331 and 332 on frame 300. Tabs 105a and 105b protrude downward, each having a hole approximately in the center of the tab. Each support arm 331 and 332 of the frame 300 has a recessed section with pins. Each recessed section engages each tank tab 105a and 105b, and the pins connect with holes in the tank tabs 105a and 105b.

At the time of assembling the sprayer, the tank 100 is tilted, and the tank tub 1 is inclined at an angle of 45 degrees from the normal assembling position.
The tank 100 is engaged with the frame 300 by engaging 05a and 105b with the recesses in the support arm and tilting the tank vertically in the normally assembled position.
The integral ribs on the frame 300 serve to guide the tank 100 into place during the assembly process. As shown in FIG. 14, the tank 100 has key-type openings 320a and 320b on the upper arm 317 that engage the protrusions 104a and 104b on the tank 100 (see FIG. 12).
As a result, it is fixed to the upper arm 317. Upper arm 3
The seventeen collar 321 surrounds the inlet 103 of the tank 100 at the inlet flange 108. The protrusions 104a and 104b are radially aligned on opposite sides of the inlet flange collar 108, each of which has a notch profile projecting through keyed openings 320a and 320b in the frame. The notch locks into the opening 12 when the frame collar 321 is fully engaged with the corresponding inlet flange 108.

Referring to FIGS. 2, 8-11 and 23 and 24, a powerhead 200 is mounted on top of the tank 100. FIG. Opening 20 in powerhead 200
1 is fixed on the inlet 103 of the tank 100. The powerhead 200 is designed so that the pressure is not suddenly released from the tank 100 even when the powerhead 200 is removed from the tank 100. The head 200 is provided with a locking feature to ensure that once the nebulizer is assembled and reaches full pressure, the head 200 must be intentionally unlocked before the screw is loosened and removed. . Part of the unlocking action is a reduction in tank pressure before unscrewing. The reduction in tank pressure will reduce the effort required to unscrew head 200.

The power head 200 has a release mechanism 210
Is provided. The release mechanism 210 includes the lock protrusion 1
The slide 212 includes a slide 212 that protrudes outside the head 200 so as to be connected with the head 04a protruding upward from the tank 100. Slide 212 advances vertically within guide 240 of the housing. Head 20
When the 0 is rotated to the tightened position, the leading edge 213 of the slide 212 is angled so that the head screw lifts slightly until it fully engages the tank 100.
As the head 200 rotates to the screw stop, the slot 214 in the lever section allows the slide 212 to descend onto the lock projection 104a of the tank 100. As a result, the head 200 is locked at a predetermined position. In order to disengage the slide 212 from the lock projection 104a and unscrew the head 200 from the tank 100, the user must lift the slide 212 with the extended side projection 215.

Inside the head 200, the release mechanism 210
Has a rib 218 that supports the pressure relief device 220. The main body of the pressure relief device 220 is the rib 21
8 and the piston portion 221 of the pressure relief device 220 is provided with a slotted rib 2 in the housing.
It is held in the housing by a groove 224 in the piston 221 that fits into the housing. When the slide 212 is lifted, the body of the pressure relief device 220
The piston 221 moves together with the housing rib 242.
, Open the pressure relief device 220 and pass through the bottom of the housing to the one-piece tube 22
6 and the air pressure is exhausted. FIG. 20 illustrates a battery compartment that includes an alignment rib 250 for the battery and a battery release. A terminal board 253 is provided near the bottom of the alignment rib 250. Air vents 254 and 258 are at multiple locations on the powerhead. A pressure controller 255 is connected to the pump 222 by an air line and is associated with the slide 212. A main switch 256 having a weatherproof cover is located on top of the powerhead 200. A front pump mount 257 is provided for mounting a pump that pressurizes the tank 100.

Referring to FIG. 21, power head 200
Is provided with a pump 222 that receives power from a motor 224. The pump 222 is mounted on a pump mount 257 and pressurizes the inside of the tank 100 when receiving power from the motor 224. To operate the motor 224 and the pump 222 to pressurize the inside of the tank 100, the pressure controller 255 operates when the tank pressure is equal to or lower than a predetermined threshold. A battery is provided in the battery compartment to power motor 224 and pump 222. Air vent 2
54 and 258 provide the powerhead 200 with air intake and cooling ventilation. As shown in FIG. 22, a one-piece molded spring 221 urges slide 212 toward tank 100. A ramp 213 is located at the base of the slide 212 to abut the locking protrusion 104a on the tank 100 as described with respect to FIG. Notch part 21
4 is automatically locked onto the lock projection 104a under the influence of the spring 221 and the pressure relief spring assembly mounted on the slide 212.

FIG. 23 illustrates another feature of a powerhead that includes a guide 240 in the housing. Preferred guides (not shown) are on opposite sides of slide 212. A hose 219 is provided for connecting the opening 201 and the pressure relief device 220. A pressure relief hole tube 226 is provided to vent when the slide 212 is actuated. The plug 231 is connected to the pressure relief hose 219 in the opening 201 of the power head 200.
Can be connected to The stopper 241 makes connection with a hose (not shown) from the pump 222. The pump 222 is preferably a piston pump, but the power head 200
Any structure can be used as long as it can function within the device. FIG.
Referring to FIG. 4, a simple and effective hose-to-tank connection is provided for transferring fluid between the tank 100 and the outlet hose. The connection from the outlet hose to the tank utilizes the externally threaded outlet 102 of the tank 100. A flexible hose 401 is connected from the cap 402 to the tank 100. Hose 401 extends around siphon tube 405. The gasket 406 has a lip of the threaded outlet 102 and the cap 4
02 and the hose 401. As the cap 402 at the threaded outlet 102 of the tank 100 exerts a compressive force on the gasket 406, the hose 401 projects over the lower end and remains open.

FIG. 25 shows a gasket 406 and a cap 40.
2 shows another structure for the shape 2; Other advantages and modifications are readily made in the art. Therefore, the present invention
In a broader aspect, the invention is not limited to the specific details and devices described and illustrated herein. Thus, various modifications may be made without departing from the spirit and scope of the general inventive concept as defined by the appended claims and equivalents.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sprayer assembly.

FIG. 2 is an enlarged perspective view of the nebulizer assembly.

FIG. 3 is a front view of the nebulizer assembly.

FIG. 4 is a right side view of the nebulizer assembly.

FIG. 5 is a left side view of the sprayer assembly.

FIG. 6 is a rear view of the nebulizer assembly.

FIG. 7 is a bottom view of the nebulizer assembly.

FIG. 8 is a front view of the tank of the sprayer assembly.

FIG. 9 is a right side view of the tank of the sprayer assembly.

FIG. 10 is a rear view of the tank of the sprayer assembly.

FIG. 11 is a top view of the tank of the sprayer assembly.

FIG. 12 is an enlarged perspective view of a frame of the sprayer assembly.

FIG. 13 is a perspective view of the lower portion of the frame of the sprayer assembly.

FIG. 14 is a perspective view showing a tank attached to a frame of the sprayer assembly.

FIG. 15 is a perspective view of a power head of the sprayer assembly.

FIG. 16 is a front view of the powerhead of the nebulizer assembly.

FIG. 17 is a rear view of the power head of the sprayer assembly.

FIG. 18 is a left side view of the power head of the nebulizer assembly.

FIG. 19 is a right side view of the power head of the sprayer assembly.

FIG. 20 is a perspective view of a partially assembled power head.

FIG. 21 is a perspective view of a power head further assembled.

FIG. 22 is a perspective view of a power head further assembled.

FIG. 23 is another perspective view showing the inside of the power head.

FIG. 24 is a schematic view of the tank and hose connection of the nebulizer assembly.

FIG. 25 is a view partially showing another embodiment of the connection between the hose and the tank.

[Sign]

 Reference Signs List 100 Tank 102 Outlet 103 Inlet 104a, 104b Lock projection 105a, 105b Tab 106 Support surface 200 Powerhead 210 Release mechanism 300 Frame 311 Support portion 315 Rib 317 Upper arm 330 Rib extension

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Trang Yen Canada M5 Tea 1W5 Ontario Toronto McCall Street 226 (72) Inventor Colin Dyke Canada K0G 1R0 Ontario North Augusta R2 (72) Inventor Jerry N. Moskovich Canada M6K 3E3 Ontario Toronto Cauwan Avenue 59 (72) Inventor René Alan Canada El 6 Jay 7E7 Onta Rio Oakville Valerie Crescent 1272 (72) Inventor Gabriel E Concari United States Maryland 21784 Eldersburg Persimmon Drive 2011

Claims (18)

[Claims] 1. A frame for supporting a fluid tank having an upper portion and a lower portion, wherein the upper portion engages the upper portion of the tank, and the upper portion engages the lower portion of the tank. And a connection joint that connects the upper section and the lower section. 2. A handle comprising: a handle, wherein the connection joint comprises the upper frame section;
The frame according to claim 1, wherein the frame connects the lower frame section and the handle. 3. The frame according to claim 2, wherein the handle includes a plurality of connection points to the connection joint so as to adjust the handle to be telescopic with respect to the frame. 4. The combination of claim 1, wherein the coupling joint includes a first set of ribs protruding from the lower frame section and a second set of ribs protruding from the upper frame section. flame. 5. The frame of claim 1, wherein the connection joint limits the relative displacement of the upper frame section with respect to the lower frame section. 6. A lock for removably locking the upper tank portion to the upper frame section, the lock including at least one protrusion and at least one opening for receiving each of the at least one protrusion. Wherein the at least one protrusion is fixed to one of the upper tank portion and the upper frame section, and the at least one opening is fixed to the other of the upper tank portion and the upper frame section. The frame of claim 5, wherein the lock is released by moving the upper frame section away from the lower frame section. 7. The at least one tab for pivotally connecting the lower tank portion to the lower frame section and at least one tab for receiving the tab.
And at least one tab fixed to one of the lower tank portion and the lower frame section, wherein the at least one tab is fixed to one of the lower tank portion and the lower frame section.
The frame of claim 1, wherein one recess is formed in the other of the lower tank portion and the lower frame section. 8. The frame of claim 1, further comprising an extension connected to the lower frame section, the extension extending outwardly from a lower side of the tank. 9. The vehicle according to claim 9, further comprising a plurality of ground engaging wheels rotatably mounted on the frame, wherein the extension member and the ends of the plurality of ground engaging wheels form a footprint surrounding a center of gravity of the tank. 9. The frame according to claim 8, wherein: 10. The frame according to claim 8, wherein said extension member is a rib. 11. A frame for supporting a fluid tank on the ground, the lower support arm engaging with the tank, and protruding from the lower support arm to contact the ground when the tank is tilted. A frame comprising: an extension member configured to prevent the tank from repeating. 12. A tank for containing a fluid, a frame for mounting the tank, the frame having a collar for connecting to an upper portion of the tank, and a connection having an adjustable connection. A joint, and two recessed sections for connection with two tabs on a lower part of the tank, wherein the tank is mounted on the frame when the adjustable connection part is in a tightened position. A portable sprayer assembly which is fixed against and released when said adjustable connection is in a relaxed position. 13. A tank containing a fluid, a pump unit for pressurizing the tank, a plurality of ground engaging wheels supporting the tank and the pump unit, and a handle for handling the sprayer assembly. A portable sprayer assembly comprising: a frame comprising: 14. The handle is secured to the frame at a connection joint between a lower section of the frame and an upper section of the frame, the frame being between the ground and the tank. An extension member disposed therein, the extension member being fixed to the lower frame section, wherein the plurality of ground engaging wheels and the extension member form a footprint surrounding a center of gravity of the tank. 14. The portable sprayer assembly of claim 13, wherein 15. The portable sprayer assembly according to claim 14, wherein said handle is adjustable with respect to said frame. 16. A method of assembling a frame for holding a fluid tank of a portable sprayer, comprising: loosening a connection joint between an upper section of the frame and a lower section of the frame; Moving from the lower frame section, placing the tank between the upper frame section and the lower frame section, moving the upper frame section toward the lower frame section, Tightening the connection joint to secure the upper frame section so that the tank is held fixed between the upper frame section and the lower frame section. 17. Disconnecting the connection joint, inserting a handle into the frame, reconnecting the connection joint to fix the handle to the frame, and the handle can be extended and retracted relative to the frame again. 17. The method of claim 16, comprising the steps of: positioning. 18. The method of claim 16, wherein said step of positioning comprises pivoting said tank relative to said frame.