DE2436887A1 - SPRAY DEVICE - Google Patents

Description

.4690 Herne, 8000 Munich

Ar "'DipL.lng.il. H. Bahr

■ DipI.Phys. Eduard Befzler -

J Dipl.-ing. W. Herrmann-Trentepohl 333 ° "

Telog ™ nschrm: D atc mta mwx, t _C Telegram address: Bahrpatente Home PATENTANWÄLTE -. Babetzpat Munich Telex 08 223 853 Telex 6216360

Γ * ~ V bank accounts:

2 A 368 8 7 Bayerische Vereinsbank Mönchen 952

"; Dresdnor Bank AG Herne 7-520

. Postal check account Dortmund 558 68-467

Ref .: M 04 828 B / h. Please indicate in the answer

Please send a letter to:

Munich

July 29, 1974

Thoraas John Smrt, 31 W 300 West Bartlett Road Bartlett, Illinois 60103, USA

Spray device

The invention relates to a spray device, in particular to a spray device for the contents of an aerosol canister to be sprayed onto an area to be sprayed or marked, e.g. B. on pavement or sports fields o. The like ..

The winding device described below is a further development of a device according to US Pat. No. 3,700,144. As explained there, it is often necessary to apply a line or a strip to a surface. For example, stripes can be applied to the pavement to mark “parking lots,. Such spray devices can also be used to spray materials that are not markers, such as weedkillers or insect repellants, medium. BADORIGINAL

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It is desirable that spray devices used for such purposes are relatively economical and easy to operate ζμ and work precisely. In many cases, the stripe is intended to be direct extend to an obstacle such. B. a wall, a parking barrier, a heavy machine or the like, and it is necessary that the sprayer be able to deliver a strip in a continuous line straight to it Object to be sprayed.

Many marking devices are used outdoors, e.g. B. to mark parks or parking lots or weedkillers to spray, and often the wind conditions are such that the sprayed material is blown away by the wind when it slips? the area is to be sprayed so that the strip appears uneven and jagged.

The invention provides an economical, compact spray device which can move on the surface to be sprayed so that a sprayed strip can be sprayed up to the obstacle in front of the device. The device is provided with a screen or a spray cover, which is attached slightly above the floor in order to protect the sprayed material from the wind when the floor is sprayed. The device is equipped with wheels on which the device rolls on the ground to be sprayed. These wheels can be moved from a working position where the windshield is close to the ground to a storage position. To be able to store the device compactly. The device uses an aerosol spray canister which is operated by a line or wire which extends around part of the outer surface of the canister to the operating portion of the device so that the canister can be pivoted by pulling the wire with a when pushing the device or multiple fingers. An elastic belt resiliently pushes the canister towards its rest position, so that the spraying is stopped when the tension on the wire subsides. The device is exceptionally simple and economical and has a minimum of parts that need to be serviced or replaced.

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ORIGINAL

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In the following, the invention is intended to be based on an exemplary embodiment and explained on the basis of drawings.

The drawings show in

Fig. 1 is a perspective rear view of the spray device rait the rear wheels in working position;

Fig. 2 is a perspective front view of the device with the wheels in storage position;

Fig. 3 is a vertical section showing the spray canister in

Shows rest position and the wheels in storage position;

4 shows a vortical section showing the wheels in the working position and depicts the canister in the spray or working position; and in .

Ftp. 5 shows a section along the line 5-5 in FIG. 4.

In the drawings, 10 is the spray device as such which has an elongated frame 11 with a spray end and a control end 13. Two pairs of wheels 14 and 15 allow the frame to slide over the floor to be sprayed. The frame carries an aerosol canister 16 in such a way that its contents can be sprayed onto the floor.

The frame advantageously consists of two parts, a generally U-shaped hollow body 18 and a generally L-shaped plate 19, both of which can be made of plastic. The hollow fuselage 18 includes a front panel 20, a pair of side walls 21 and 22 and a top 23. The side walls 21 and 22 have laterally outwardly projecting parts 24 and 25 which border the spray end of the frame, as well as end parts 26 and 27 ₀ the extend parallel to the parts of the side walls above the exposed parts.

The front wheels 14 are mounted on an axle 29 which extends through the end portions ^ 26 and 27 of the side walls.

The front wheels 14 are mounted on an axle 29 which extends through the end portions 26 and 27 of the side walls. the Wheels 15 are mounted on a generally U-shaped link frame 30 and allow movement between the Working position according to FIG. 1 and a storage position according to FIG. 2. The linkage frame 30 comprises an axle part 31, which Wheels 15 and a pair of arms 32 and 33 rotatably supports, of which both terminate in an inwardly extending end portion 34.

Each of the inwardly facing end portions 34 is rotatable in one Supported opening, which are provided in the outwardly facing parts 24 and 25 of the side walls of the frame. If the Linkage frame 30 is located in the storage position according to FIGS. 2 and 3, the axle parts 31 of which are supported in slots 35 which in the side walls 21 and 22 are provided. Each slot 35 has a narrowed opening, the width of which is slightly less than is the diameter of the axle portion 31 of the linkage frame and which holds the linkage frame in the slot. If the Linkage frame is to be brought into working position, the axle part can be moved out of the slots in that a Tensile force exerted on the axle part is large enough to withstand the frictional force caused by the opening of the slots will overcome.

Each flared portion 24 and 25 of the side walls of the frame is spaced apart with a pair of outwardly extending ones Ribs 36 and 37 are provided. The arms of the parts 32 and 33 of the linkage frame are in the working position, from the Ribs detachable, locked. The arms can be clamped between the ribs in that the inwardly facing parts 34 can be pulled out sufficiently from the side walls of the frame to slide each arm over the top rib. The tension on the arms can then be released, and the arms snap into the space between the ribs, which is due to hold your arms tight to the friction. The length of the inwardly facing end portions 34 of the linkage frame allows a sufficient pulling out of the end parts so that the arms are clamped between the ribs without these parts

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pulled completely out of the side walls of the frame will.

The front wall 20 of the frame extends inwardly or at the rear above the exposed parts of the side walls upper and lower canister support or buffer walls 40 and 41 (Figs. 3 and 4) to be provided. Each wall is provided with an arcuate indentation 42 (Fig. 5), and the walls 40 and 41 are adjacent to side walls 43 and 44 which extend longitudinally and end walls 45 and 46 which extend from the rear ends of the side walls 43 and 44 to the arcuate Indentation 42 extend. The walls 40 and 41 are not along the outer surface of the arcuate indentations connected so that a slot is provided between them in the frame is.

The front wall of the frame also extends below the inside the canister holder walls 40 and 41, and looks backwards extending walls 48 and 49 and a laterally extending end wall 50 before which with a support or Buffer for the valve of the aerosol canister is provided, such as will be explained in detail below.

The L-shaped plate 19 of the frame includes a head wall 51 as well as a rear wall 52, - which are in a blunt Angle to the head wall 51 extends. The rear edges of the side walls 21 and 22 of the frame extend rearwardly near the rear portion 52 of the plate 19. Die Plate 19 cooperates with the hollow body 18 so that a Spray cladding or chamber is created. The front end of the head wall 51 is supported by a shoulder 53 (Fig. 4), which is provided on the inwardly extending wall 48 of the frame. The plate can be conveniently attached to the side walls of the Frame to be attached, such. B. with adhesive, by welding or the like .. ■

The aeroso can 16 is of conventional design and includes a cylindrical body 54 and a hemispherical one Head 55. The hemispherical head of the canister is rotatable

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bar supported in a circular opening 56 formed in the Head wall 51 of the plate 19 is provided. The radius of the opening 56 is smaller than that of the hemispherical head so that the cylindrical body of the canister is above the head wall 51 is stored and the canister in a sufficient manner from the rest position of FIG. 3, wherein the axis of the canister parallel to the front panel of the frame, into the working position of Figure 4 with the axis of the canister extending at an angle with respect to the front panel of the frame is.

The arcuate indentations 42 in the canister support walls 40 and 41 have a radius which is substantially the same as that of the cylindrical body of the canister is, and normally the canister in the rest position of FIG. 4 is held by an elastic strap 58 which extends between the side walls of the frame above the canister support wall 40. The elastic belt 58 can be used on the crosswinds of the frame are secured by passing the ends of the belt through openings in the side walls and providing them with crossbars 59 that prevent the belt from being pulled through the openings.

The aerosol canister is equipped with a conventional valve that a valve stem 60 and a spray nozzle 61 comprises. The valve opens when the valve stem. Laterally with respect to the axis of the canister is moved. When the canister is in the rest position according to FIG. 3, the spray nozzle comes with the buffer is engaged and the valve stem is aligned with the axis of the canister so that the valve is closed. Usually the canister is held in place by an elastic strap that exerts a force on the top of the Canister exerts so that the canister is held within the arcuate indentations 42 of the canister support walls 40 and 41 will.

A handle bulge 63 is provided at the upper end of the frame so that upper and lower walls 64 and 65 are rearward extend which are located within the front wall 20 ', and that

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a rear wall 66 and side walls 67 and 68 arise. the Bottom wall 65 comprises a U shaped middle part 69 which extends upwards relative to the rest of the bottom wall.

With the help of the leash or the wire 17, the canister is removed the rest position according to FIG. 3 into the working position according to FIG. The wire shown in the drawings has the Shape of a long, endless rope that passes inside through openings in the side walls 43 and 44, between the canister holder walls 40 and 41 and runs about halfway around the outer surface of the canister when the canister is in the arcuate shape Indentations 42 is located. The rope runs up from the side walls 43 and 44 and then through openings that provided in the side walls 67 and 68 of the handle bulge are and finally by the upward v / ironing, middle part 69 of the bottom wall 65 »·

As shown in Fig. _Φ 2, the parts of the wire between the side walls 67 and 68 of Handgriffausbuchtung in · are arranged at a distance from the bottom wall 65, and one can with one or more fingers between the wire and the bottom wall 65 on one or both Reach through the sides of the upward-facing, central part 69. When an upward force _{N is} exerted on the wire ^{with the fingers, the portion λ of} the wire that extends around the outer surface of the canister is pulled through the openings in the side walls 43 and 44, and the tension of the wire between the Side walls exert a force which is directed away from the arcuate indentation 42 against the resilient counterforce of the elastic belt 58. The spherical head of the canister is pivotally mounted in a circular opening in the head wall of plate 19 and the force of the wire on the canister pivots the canister rearward. The spray nozzle 61, however, is prevented from pivoting with the canister by the buffer 50 and the valve stem 60 is thus moved laterally with respect to the axis of the canister so that the valve opens and the contents of the canister are sprayed . The canister doesn't have one

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Immersion tube, and if it is tilted, as indicated in the drawing, so the propellant sprays out the contents of the canister as soon as the valve is opened.

When the upward force on the wire is released, the canister returns to its resting position, triggered by the elastic strap 58, and the valve closes.

When the wheels 15 are in the working position, the bottom edge 70 of the frame extends generally parallel to the area S (Fig. 4) to be sprayed. The lower part of the hollow body 18 of the frame and the plate 19 form one Windshield to protect the spray material from the wind. The wheels 14 and 15 are advantageously attached to the frame in such a way that that its bottom edge 70 occupies a position just above the ground to be sprayed, in order to increase the possibility reduce wind affecting the spray before it reaches the ground. The frame is inclined to the vertical, when the wheels are in working position. The wheels 14 are located at the rear of the front wall 20 of the frame, so that the bottom edge of the front wall driven right up to a wall or other obstacle in front of the spray device can be. Der.buffer 50 and the canister holder opening in the plate 19 can be set up with respect to the bottom edge of the front wall so that the contents of the canister are directly lets spray onto the surface below the bottom edge of the front wall. This allows the contents of the canister to be very tight spray at an obstacle in front of the frame.

The spray device can be moved over the area to be sprayed by moving the upper end of the frame with it one hand so that the fingers reach into the bulge 63. If the canister is to spray, you can pull the wire upwards with one or more fingers while the Frame continues to be driven over the area.

Although an elastic strap has been described above, which serves as a return device to the canister from the working position return to the rest position, other spring means can be used to provide the necessary resilient counter-

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force to take care of the canister. It is recommended for the Wire 17 to use a relatively inelastic material. While following the description above the wire extends upward from both sides of the side walls 43 and 44, the wire can also be attached to either of these two Attach side walls and then only extend upward from the other side wall and can be conveniently attached to the top Be anchored to the end of the frame.

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Claims (10)

Claims ί 1 .. spray device, characterized by a frame, means on the frame for holding one with Valve provided with spray means containing container, return means on the frame, which the container resiliently in a to press non-spraying position, support parts on the frame for actuating the valve of the container and actuating means on the frame for moving the container while the valve engages in the support parts, whereby the valve of the container opened and the contents of the container is sprayed. 2. Apparatus according to claim 1, characterized by a chamber-shaped casing for the valve of the container, which ends immediately above the soil to be sprayed and protects the contents sprayed from the container from the wind. 3. Apparatus according to claim 2, characterized by wheels attached to the frame for moving the frame over the ^ Tbesprühend.e Area, 4. Apparatus according to claim 1, characterized -characterized, that the holding means support the container so that it can pivot about its valve and the actuating means are made of wire, which extend around part of the outer surface of the container and when pulled on it, a pivoting of the container around the valve causes. 5. Apparatus according to claim 4, characterized in that that the wire is formed by an elongated rope. 6. Apparatus according to claim 4, characterized in that that the frame contains a holding part for the container and an operating part, the wire extends from the holding part for the container extends to the operating part and the frame has a holder for the wire in which the wire is located 509807/0381 - 11 - Blank page 11. The device according to claim 8, characterized in that the wire means is a relatively inelastic Rope, the return means are formed by a stretchable elastic belt and the wire means the canister between the Operate the valve and the return means. 12. The device according to claim 8, characterized in that the spray end comprises a sheathing part, which encloses the valve support part, and forms a spray chamber and this sheathing part extends to the one to be sprayed Surface extends so that the content to be sprayed is protected from the wind. 13. Apparatus according to claim 8, characterized by a first pair of wheels rotatably attached to the spray end of the frame and a second pair of wheels rotatably attached to the chassis are attached, which is movably mounted on the frame and a movement between storage position and working position allows the first and second pair of wheels to form the cover member wear so that it extends close to the area to be sprayed. 14. The device according to claim 13, characterized in that the frame with the chassis in the storage position provided releasably retaining means. is. 15. The apparatus according to claim 14, characterized in that the holding means for the chassis frame are provided by slots in the frame. 509807/0381 can move. 7. Apparatus according to claim 1, characterized in that the return means is an elastic belt are. 8. Spray device. marked by a valved aerosol canister, the contents of which is to be sprayed, and an elongated frame with a spray end and a service end, holding means on the frame that pivot the canister around it Swivel from the working position to the rest position valve support parts on the frame that operate the valve of the canister, which is in relation to lateral movement of the canister opens, so that a pivoting movement of the canister from the rest position into the working position Valve opens, attached to the frame, and extends around part of the outer surface of the canister as well as from the canister to the Operating end of the frame extending wire means so that tension on the wire means pivots the canister relative to it caused the valve from the rest position to the working position and opens the valve, and mounted on the frame resilient return means which actuate the canister, the return means pushing the canister back into the rest position. · 9. Apparatus according to claim 8, characterized in that the holding means are arcuate Include buffers that store the canister in the rest position, and wire means extending around a portion of the exterior surface of the canister pass near the buffer. 10. The device according to claim 9, characterized in that the buffers comprise side walls, wherein the wire means extend through the side walls. - 12 509807/0381