JPH0474552A - Spray gun - Google Patents

Abstract

PURPOSE: To make it easier to attach or detach a cover by allowing the cover to have an upper face apart from a container for a material to be sprayed, by installing a connecting apparatus, between the cover and the container for the material to be sprayed, so that the cover is possible to be attached or detached by rotating it relative to the container for the material to be sprayed, and by installing an operating aid on the cover for the purpose of rotating the cover relative to the container. CONSTITUTION: The spray gun 10 receives compressed air through an air hose 18. A part of the air is introduced into a container for a material to be sprayed 12 through a pressure hose 33 and angle member 31. By this means, an excess pressure is generated in the container for the material to be sprayed 12 so that the material to be sprayed is sprayed into a casing 15 in a specific way through a pathway 25 almost independent of the position of the spray gun 10. By operating a trigger 23, the material to be sprayed is sprayed through a nozzle 21 of the spray gun 10 to be mixed with the air flowing out of an air head 20. The mixture of the material to be sprayed and the air generated on the occasion is surrounded by an air circular cone flowing out of the air head 20 as if it is a kind of an air bell. A tight closure of the container of the material to be sprayed is achieved in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a spray gun having a handle and a container for a material to be sprayed, wherein one injection port of the container can be closed by a removable lid, and when the lid is in the lid-attached state. A connecting device is provided between the lid and the container for the material to be blown, which has an upper surface separated from the container for the material to be blown, and is detachable by rotating the lid relative to the container for the material to be blown. It relates to a lid equipped with an operation assisting means for turning the lid.

Spray guns of the above type are known as products of the applicant.

In the well-known spray gun, the lid of the material container to be sprayed has an annular cross section.
It has two parts and a lower part which is also annular in cross section. The picture parts are arranged concentrically and connected together. The known lid closes on its upper side remote from the lower part with a bottom, which has a smooth outward facing surface.

The upper part has a plurality of ribs parallel to the longitudinal axis of the lid as operation assisting means on the outer peripheral surface facing outward in the radial direction, and these ribs are evenly distributed along the circumference. An internal thread with a complete circumferential thread is provided on the inner surface of the lower wall so that the lid can be screwed onto an external thread on the material container to close the inlet. The lid grips one edge of the material container with its lower part.

An O-ring is disposed within the lid which, when the lid is screwed on, is compressed between the rim of the material container and a suitable abutment surface of the lid to close the material container in a pressure-tight manner. It has become.

When tightening or loosening the lid of a well-known spray gun, the user simply grasps the outer peripheral surface of the upper part with his or her fingertips and turns the lid appropriately. At that time, it is known that the diameter of the upper part is adjusted to match the user's hand. However, in order to achieve the often desired low structural height of known lids, their circumferential height is small in the longitudinal direction of the lid.

Known spray guns have the disadvantage that the available gripping surface is small, so that the user's fingers can easily slip when attaching or removing the lid. This cannot be effectively prevented even by the ribs provided as operating aids, since the lid is manufactured in one piece from synthetic resin, so that the entire surface is very smooth.

As any craftsman or do-it-yourselfer knows, when refilling a container of material to be sprayed, it is impossible to avoid the material from reaching the hands or gloves and staff. As a result, the threaded joint and/or O-ring become stuck due to the dried and solidified residual material to be sprayed, making it impossible to attach or detach the lid without applying a large amount of force. On the other hand, the grip of the hand or gloves and lid deteriorates even further. If the known spray gun is used continuously for a long time, and therefore frequent replenishment of the material to be sprayed is required, the known lid becomes increasingly difficult to remove from the container for the material to be sprayed from time to time for the aforementioned reasons.

Therefore, the present invention is characterized in that the spray gun of the type mentioned at the beginning is improved so that the above-mentioned drawbacks are prevented.In particular, the lid must be easily attached and detached even when the material to be sprayed is repeatedly replenished. .

According to the invention, this problem is solved by providing operating aids on at least two sides of the lid.

The problem underlying the invention is thus completely solved.

In other words, the operation auxiliary means provided on the two sides of the lid unexpectedly improves the ease of gripping the lid, making it possible to perform operations other than double operations. To tighten or loosen, the user presses on the lid with the whole surface of his hand, and thanks to the new arrangement of the operating aids the user finds good support on the lid. With a slight pressure on the lid, the user is now effectively prevented from slipping out of the lid, even if his hands or gloves are contaminated with the sprayed material, and he has no problem applying the necessary force to loosen or tighten the lid. be able to.

The ease of gripping the new lid is due in particular to the fact that the area of the top surface of the lid is significantly larger than the area of the outer circumferential surface on which the known lid must be held. In the case of new spray gun lids, the force required to prevent the lid from slipping is no longer applied via the fingertips to a relatively small surface, i.e. the outer circumferential surface, as was the case in the prior art, but is applied across the entire palm of the lid to a wide area of the lid. Can be added to the top. With such a strict lid, it is not necessarily necessary to select the diameter of the lid so that the user can grasp the lid completely from above with his/her fingers.

In one preferred embodiment of the spray gun according to the invention, the operating aid has at least one gripping recess formed in the upper surface of the lid.

As an advantage of this procedure, the hand finds particularly good support on the lid. The lid can be turned very lightly, so the user can “・□
Furthermore, you can quickly turn the lid by grabbing your fingertips and placing them on the four parts.

In another preferred embodiment of the spray gun according to the invention, the operating aid has a raised area of at least 1° on the upper surface of the lid.

The advantage of this procedure is that the user's palm can be placed on the lid arbitrarily from the ``-'' and always finds good support.

It is particularly advantageous in this embodiment if the at least one raised area has at least one longitudinal land running over its upper surface.

This procedure has particular advantages in terms of manufacturing technology and also ensures good support for the hand at any position on the lid.

Further advantages are achieved in this embodiment by providing at least two lands and forming at least one gripping recess between them.

By this measure both the advantages of lands and of gripping recesses are achieved. On the other hand, the palm receives good support from the land,
On the other hand, the lid can also be easily turned from the top with your fingers.

It is further preferred in this embodiment that the lid is of circular cross-section and has an inclined surface tapering radially outwardly from the longitudinal axis.

This measure allows the lid to be slightly conical and advantageously adapted to the hand.

Another advantage is achieved in this embodiment by the lands running radially from the inside to the outside of the surface.

The advantage of this procedure is that each two lands thus easily form a triangular surface between them, together with which the lands form an extended grasping quadrant that opens radially outwards, allowing the hand to move away from the hand. When you place it on the lid, you can insert your finger into this recess. This allows the lid to provide sufficient support to the hand.

In this embodiment it is further preferred that the lid has at least one further raised area on its radially outwardly directed outer circumferential surface.

This procedure has the advantage already known per se that the fingertip finds good support on the outer circumferential surface. However, another advantage of this measure in the spray gun according to the invention is that even if the hand essentially rests flat on the two sides of the lid, the thumb, which in this case rests against the outer circumferential surface, finds good support.

In this embodiment at least one further raised area is at least 1. It is particularly advantageous if the lid has two projecting ribs running parallel to the longitudinal axis of the lid.

The advantage of this procedure is that the thumb rests almost perpendicular to the rib when tightening or loosening the lid, and finds good support there.

Further advantages are achieved in this embodiment by the fact that at least one land is connected to the associated rib while forming a corner which projects outward from the surface and the outer circumferential surface.

This measure, which is achieved in terms of manufacturing technology (11), significantly increases the grip of the lid.

Preferably, in this embodiment, each land is furthermore assigned a rib, and at least one further rib is arranged between two ribs associated with each land in the circumferential direction of the lid.

The advantage of this procedure is that when the lid is grasped from above, the fingers come into contact with the protruding space and find a reliable support. Furthermore, the fingertips are supported by another rib placed between the protruding parts.

Another advantage of this procedure is that it is not necessary to rest the entire palm on the lid. This is desirable, for example, when other equipment necessary for the operation of the spray gun protrudes from the lid. In this case, you can turn the lid by placing your finger on the protruding surface, and there is no risk of it slipping even if the material to be sprayed is heavily contaminated.

Furthermore, in this embodiment, 12 lands and one attached rib are arranged almost evenly in the circumferential direction, and another rib is arranged approximately in the center between each two attached ribs and parallel to the two attached ribs. It is preferable to run it.

On the other hand, the advantage of this procedure is that the number of gripping parts formed between the lands is large, so even when turning a lid that does not move easily, it can be easily gripped by hand. Leaves enough room for fingers.

In this embodiment, it is further preferred that the back surface of the land remote from the top surface of the lid lies on a plane substantially perpendicular to the longitudinal axis of the lid.

The advantage of this procedure is that the lid can be removed securely with the top at its lowest point and will not continue to roll.

In this embodiment, the surface of the lid is also 1
It is preferred to run at an inclination angle of less than 0°, preferably between 3° and 5°.

The advantage of this measure is that the lid has only a small structural height and yet provides sufficient resistance to hand slipping.

In one development of this embodiment, the spray gun according to the invention has a lid having an upper part including an upper surface and a lower part remote from the surface, the lateral dimensions of the two parts being different from the lateral dimensions of the lower part, and the operating aids being It is characterized by having an upper part and a coupling device attached to the lower part.

This procedure has the per se known advantage of being able to adapt the lower lateral dimension to the inlet of the material container to be sprayed and the upper lateral dimension to the hand.

In this embodiment, it is further preferable that the second part has a smaller diameter than the lower part, and the negative part and the lower part have an annular cross section.

This procedure advantageously allows the use of sprayed material containers with large fill ports, such as are required for viscous sprayed materials, while still allowing the diameter of the top to be adapted to the user's hand. This allows for good operation of the lid. For material-saving reasons, it is advantageous if the upper as well as the lower part has a semicircular cross-section so that the interior of the lid is hollow.

This embodiment is advantageously improved in that the coupling device is a threaded joint.

The advantage of this procedure is that the threaded joints seal well while being simple to produce.

In this embodiment, further advantages are achieved when the threaded joint has an internal thread in the lower part and an external thread in the area of the open edge of the container to be sprayed.

This procedure allows the lower part of the lid to hang advantageously into the material container, completely covering the injection tube.Furthermore, the external thread on the material container is not easily contaminated when the material is being poured. .

Preferably, in this embodiment the lands terminate gradually radially inward.

This measure also advantageously contributes to reducing the structural height of the lid. This is particularly desirable for material saving reasons.

In this embodiment, it is furthermore advantageous for the lid, the coupling device and the operating aid to be made in one piece from synthetic resin.

This procedure achieves the advantages known per se, namely that the lid is easy to produce, can be cleaned well and is lightweight.

In this embodiment, it is particularly preferable that the lid is provided with a through hole communicating with the interior thereof in order to introduce compressed air into the container for the material to be sprayed.

This procedure also has the advantage, which is known per se, that the material to be sprayed reaches the handle in a specific manner, almost independently of the position of the material container.

In this embodiment, further advantages are achieved by fixing the container for the material to be sprayed on the handle by means of a holding device which is provided with a channel for conveying the material to be sprayed.

The advantage of this procedure, which is also known per se, is that only one hand is required to operate the spray gun, which makes it possible to work easily with the spray gun according to the invention.

Further advantages will become apparent from the description and the accompanying drawings.

The features mentioned above and those to be explained below can of course be applied not only in the combinations indicated in each case, but also in other combinations or singly, without departing from the framework of the invention. Embodiments of the invention are shown in the drawings and will be described in detail below.

21. In FIG. 1, reference numeral 10 is used in the industrial and consumer sectors to apply paints, lacquers, wood preservatives, plastic coatings for walls and ceilings, etc.

The spray gun 10 has a cylindrical material container 12 closed with a lid 11 and a handle generally designated 13. The container 12 for material to be sprayed is fixed in the region 1.4 of its front end to a handle 13, as will be explained in more detail. The lid 11 is made in one piece from a hard material, for example a thermoplastic resin, and the sprayed material container 1-2 is made from a softer elastic material, for example also a thermoplastic resin, but with a different composition. .

For reasons of brevity, the expressions "above" and "below" will be used below to indicate direction. "Top" means the extension of the container 12 for the material to be sprayed - the direction away from the handle 13 at "H", and "down" means the opposite direction, that is, the extension of the container 12 for the material to be sprayed"2 for the grip 1.3
means the direction towards.

The front end 14 of the grip 13 is a part of the cylindrical metal casing 1-5, and from the rear end 16 remote from the front end 14, an integrally molded fitting tube (not shown in FIG. 1) branches diagonally downward. , into which an ergonomically shaped insulating grip 17 is fitted, so that it faces away from the material container 12 to be sprayed.

An air hose 18, only schematically indicated in FIG. 1, passes through the insulating grip 17 from below, via which the spray gun 1-0 is supplied with compressed air. A union nut 19 is fitted on the front end 1-4 of the axial extension of the casing 15, which connects the air head 20 and the nozzle 21 for the material/air mixture to be discharged to the casing 15. Join. An adjusting screw 22 is suggested at the rear end 16 of the casing 15 and approximately axially aligned therewith. In order to trigger the spraying process, a trigger 23 is provided, which is arranged on the casing 1-5 between the union nut I-i-9 and the insulating grip 17 and approximately flush with the insulating casing 1.7. be. Adjusting screw 22 serves as a settable stop for trigger 23 and also for nozzle 21 . This is useful for setting the amount of ingredients at step 1. Through this interval setting, the material to be sprayed and
The air mixture is adjusted.

The container 12 for material to be sprayed is connected to the casing 15 via a passage 25 at the bottom 24 remote from the lid 11 for conveying the material to be sprayed. The bottom 24 of the material container 12 tapers downward into a discharge pipe 26, which is connected to the intermediate member 2.
Connection nozzle 2 provided at the front end 1-4 of the grip 1-3 by 7
It is combined with 8.

The discharge pipe 26, the intermediate member 27 and the connecting nozzle 28 form a holding device "(:), which grips the container 12 of the material to be blown 13.
1 in the relative position shown in FIG.
He looked diagonally down. A coaxial passage 25, indicated by dashed lines, extends into the holding device 26, 27, 28.

Approximately in the center of the lid 11 is provided a continuous step hole 30 of m length, which can best be seen in FIG. From the angle member 31 to the step hole 30 as shown in FIG.
is inserted, and a pressure hose 33 is inserted into the person [ ] 32. The pressure hose 33 is fitted at its lower end 34 with a nozzle indicated at 35, which is tightly molded into the rear end 16 of the casing 15 upwardly away from the insulating grip 17.

The lid 11- and the material container 12 are rotationally symmetrical about a common longitudinal axis indicated at 37 in FIG. 1.3. The shell-like hollow lid 11, whose cross section is shown in FIG. 3, is sealed from the inside by an inclined bottom 38 which gradually descends from the inside to the outside in the radial direction.

The base 38 forms an angle of inclination 39 with respect to a straight line drawn perpendicularly to the longitudinal axis 37 of the lid 11, the angle of inclination being preferably 4°.
It is.

The main body of the lid 11 has an annularly extending wall 40, which wall is arranged concentrically with the longitudinal axis 37 and opens downward.
It becomes the lower part 41 of . An annular shoulder 42 is formed to form an annular shoulder 42, and the upper part 43 continues integrally with the second part of the F part 41, whose wall 44, which also extends annularly, is offset radially inwardly from the wall 40, and the lower part 4
1- is larger than the diameter of the upper part 43 concentric therewith.

''The wall 44 of the second part 43 merges integrally into the inclined base 38 at the top.

As shown in FIG.
- has. As can be seen in particular in FIGS. 1-13, the elongated rib 46/1 extends starting from the shoulder 42 over almost its entire height measured in the direction of the longitudinal axis 37 of the outer circumferential surface 45. A total of 12 ribs 46/1 are provided on the outer peripheral surface 4.
5 and extending parallel to the longitudinal axis 37.

Lid 11. A side 47 is formed by the outwardly facing surface 48 of the bottom 38 and has twelve radially inwardly extending lands 49 on its upper surface.

The land 49 overhangs from the surface 48 and has a semicircular cross section.

The land 49, which forms a protruding corner 50 and is drawn forward to the outer circumferential surface 45, transitions into another rib 46/2. Another rib 46/2 runs parallel to rib 46/1 and is centrally arranged therebetween. From the surface 48 to the outer peripheral surface 45
The corners 50 which also protrude from the top can be seen particularly well in FIG.

As can be seen from the two series, the lands 49 are also arranged evenly in the circumferential direction. As shown in FIG. 3, the land 49 has a back surface 51 remote from the surface 48 in a plane generally perpendicular to the longitudinal axis 37. The lands 49 run gradually radially inwards and transition indistinguishably into the surface 48.

Each two lands 49/1.49/2 form between them a radially outwardly extending and inclined triangular surface 52 which opens outwardly with both lands 49/1.49/2. ] A bottom gripping recess 53 is formed.

The ribs 46, lands 49 and protruding corners 50 form the lid 11. The inherently smooth surface 48 of the handle provides greater grip and thus serves as a manipulation aid.

As can be seen in FIG. 3, the lid 11 has a pin 55 projecting into the interior 54, which extends concentrically with the longitudinal axis 37. A stepped hole 30 is provided at the center of the pin 55 to receive the angle member 31o.

An axially parallel extension of the wall 44 of the second part 43 is provided in the interior 54 of the lid 11 with a wedge-shaped sealing edge 57 which extends downwardly and radially around the truncated free end 56; This can be clearly seen in the figure.

An annular groove 58 runs between the wall 40 and the sealing edge 57 of the lower part 41, the radially outer wall of which is formed by the inner surface 59 of the wall 40. The sealing edge 57 has an inclined surface 6 facing the inner surface 59.
0, which runs diagonally from top to bottom and radially inward and intersects the longitudinal axis 37 at an acute angle. This angle, indicated at 61 in FIG. 4, is preferably about 18 degrees.

A groove bottom 62 sealing off the groove 58 extends between the inner surface 59 and the sloped surface 60 and runs approximately parallel to the shoulder 42.

For example, as can be seen from Figure 2.3, the wall 4 of the lower part 41
A total of four right-handed screw threads 67 are provided on the inner surface 59 of the lid 11 and project into the interior 54 of the lid 11. The mutually identical threaded portions 67 are arranged symmetrically to each other and each span an angular range of approximately approximately 30°.

The threaded portions 67 of trapezoidal cross-section each have an abutment surface 68 facing upward in the direction of the bottom 38 and a starting end area 69 pointing obliquely to the lower right in FIG. It gradually terminates when viewed clockwise.

In the illustrated embodiment, ribs 46, lands 49, and protruding corners 5
0, the sealing edge 57 and the threaded portion 67 are attached to the lid 11. It is formed integrally with the

FIG. 4 shows a part of the container 12 for material to be blown, which is also closed with a lid 1-1. As can be seen, the lid 11 is located at the lower part 41
．． While the wall 40 grips the sprayed material container 12 from above,
The lower free end 56 of the sealing edge 57 projects into the injection port 29 of the material container 12 to be sprayed. The inlet 29 is defined by an open "" edge 70 extending generally perpendicular to the longitudinal axis 37 and an angled edge surface 71 following the open edge 70 radially inward. The edge surface 71 forms an angle with respect to the longitudinal axis 37 as indicated at 72 in FIG.
This is preferably about 50°.

The edge surface 71 has a radially inner F edge 74 transitioning to a radius 76, or in other words, a lower edge 74 located within the injection hole 129 is chamfered.

As can be seen in FIG. 4, a male thread 77 is provided in the sprayed material container 12 in the range of the injection port 29, and the downward contact surface 78 of the container 12 is connected to the female thread 67 provided on the lid 11 when the lid 11 is screwed on. It cooperates with the abutment surface 68. The external thread 77 is naturally a four-thread right-hand thread, and like the thread 77, some of the threads 77 are simply provided with four short threads 77 on the outside of the container 1-2 for the material to be blown. 4 threaded parts 6
It is assigned to 7. For reasons of simplicity, the threaded portion 77 is not shown in the drawings. Although the pitch of the threaded portion 67°77 allows the operating angle to be less than 90°, the sealing device formed by the inclined surface 60 and the lower edge 74 does not close to the lid 11.
It is selected so that it will be compressed with sufficient force when screwed together.

Since the internal thread 67 and the external thread 77 are each provided with only four short thread sections, the lid 1-1 has the desired low structural height. Furthermore, material is also saved since only short threaded sections 67, 77 are provided. It is self-evident that the longitudinal axis 37 is at the same time the axis of rotation of the threaded joint 67, 77.

As already mentioned, the spray gun 10 described above is supplied with compressed air via an air hose 1-8. A portion of this air is introduced into the blown material container 12 through the pressure hose 33 and the angle member 31. This creates an overpressure in the sprayed object 31° container 1.2, and the material to be sprayed passes through the channel 25 into the casing 15 in a specific manner, almost independently of the position of the spray gun 10. released. When the trigger 23 is operated, the nozzle 21 of the spray gun 10
The material to be blown is ejected from the air head 20 and mixed with the air flowing out from the air head 20. The blown material/air mixture generated in this case is surrounded by the evenly flowing air cone of the air head 20 like a kind of air bell.

To replenish the material to be sprayed, the lid 11, which is shown screwed together in FIG. 1, must be removed from the container 12 for the material to be sprayed. When the lid 11 is not securely fitted, the user can hold the angle member 31 in the stepped hole 30 and grip the lid 11 from above so that his fingers are in the grip recess 53. When turning the lid 11, the fingers touch the protruding corner 50 and the rib 46/1.46/2
This prevents slippage even when the lid and/or fingers are dirty with the material to be sprayed. Therefore, although the lid 11 is preferably made of synthetic resin and has an inherently smooth slippery surface, the lid can be easily loosened even if it becomes heavily soiled.

However, if the remaining material to be sprayed dries and solidifies between the threads 67 and 'IT', it becomes extremely difficult to remove the lid 11. In such a case, when the angle member 31 is pulled out from the stepped hole 30, the user can grasp the entire two sides 47 of the lid 11-.

He placed his hand flat on top of the lid 1] and used his fingers to touch the protruding corner 5.
0 and rib 46. Furthermore, the land 49 is additionally held in the palm of the hand.

By applying light pressure to the lid, the user can now turn the lid with greater pressure without the risk of the hand slipping.

After replenishing the material to be sprayed, the container 1 for the material to be sprayed is opened as well as the cover 11.
-2 is screwed together. When the lid 11 is attached, the material to be sprayed container 1
The sealing edge 57 protruding in -2 comes into contact with the inclined edge surface 71 of the sprayed material container 12 via the inclined surface 60. Thread 67.7
In this way, the inclined surface 60 and the edge surface 71 apply an aligning action to the lid 11 before the two screws 7 engage with each other, so that the lid can be easily screwed together.

Lid 11. When the lid is further tightened, the sloped surface 60 and the thread (i
The abutment surfaces 68 of 7 are tensioned between the lower edges 74 or between the abutment surfaces 78 of the threads 77 .

Lid 11. Since it is made of a harder material than the material to be sprayed container 1-2, as the lid 1-1- is further tightened, the radius 76 becomes even flatter, and a large contact surface is created at the inclined surface 60.

In this way, by only slightly turning the lid 11, pressure-tight closure of the material container 12 is achieved without the need for additional sealing rings or the like. The sealing edge 57 and the lower edge 74 of the edge surface 71 form a so-called integrated sealing device, which is implemented in two parts and is integral with the lid 1-1- or the material container 12 to be sprayed. These are irrevocably assigned. This sealing device 57,74 is automatically cleaned together with the lid 11 and the container 1-2 for the material to be sprayed. The lid 11 also serves as the material container 1-
2 is also made of a material that is resistant to the material to be sprayed in each case, so that it is impossible here for the seal to become brittle or lose its effectiveness.

The lid is provided with a sealing edge corresponding to the lower edge 74, which cooperates with the lid to provide a sealing surface that coincides with the inclined surface 60; I can do it.

This also applies to the lid 11. since the sealing effect is achieved to an extent within the injection [129]. This also contributes to reducing the structural height of the blown material container 12.

In the described embodiment of this new spray gun 10, the lid 1
-1 is manufactured from a harder thermoplastic resin than the material to be blown container 12. Just for the sake of completeness, it is of course possible to conversely manufacture the container 1-2 for the material to be sprayed from a thermoplastic resin that is harder than the lid 11. In this case, the radius 76 of the lower edge 74 would be pressed into the material of the sealing edge 57 to achieve a pressure-tight connection.

It should be further noted that the lid 11 is manufactured in one piece with the rib 46, the land 49, the threaded part 67 and the sealing lip 57 in the embodiment described, although the individual components of the lid 11 are of course added later. It can also be attached, for example by gluing or welding.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing one embodiment of the spray gun of the present invention. FIG. 2 is an enlarged plan view of the lid of the spray gun of the present invention, partially cut away in the direction of arrow 11 in FIG. FIG. 3 is a sectional view of the lid viewed from the side along line III-III in FIG. 2. FIG. 4 is an enlarged sectional view of a portion of the container for the material to be sprayed taken along line IV-IV in FIG. 2; FIG. 5 is a further enlarged view of the part in FIG. 4 surrounded by a dashed-dotted line and marked with the symbol ■. 1-0... Streak 1 Gun 11... Lid 12... Sprayed material container 13... Grip 25... Passage 26. 27. 28... Holding device 29... Inlet port 37. ... Rotating shaft 41 - ... Annular lower part 43 ... Annular upper part 46', 49.50.53 ... Operation auxiliary means 4 ...
Internal 8... Peripheral groove 9... Inner surface 7.60.74.76... Sealing device 7.77... Threaded joint 0... Opening edge 1... Edge surface

Claims (1)

[Claims] 1) A spray gun (10) having a grip (13) and a container (12) for a material to be sprayed, the container having an inlet (29).
can be closed by a removable lid (11), and the lid (
11) has an upper surface (47) that is separated from the material container (12) when the lid is attached, and the lid (11) is attached to the material container (12).
12) A coupling device (
67, 77) between the lid (11) and the material to be sprayed container (12), and the operation assisting means (46, 49, 50, 53) for relatively rotating the lid (11) are provided between the lid (11) and the material container (12). 11), the operation assisting means (46, 49, 50, 5
3) is provided on at least the top surface (47) of the lid (11). 2) The operation auxiliary means (46, 49, 50, 53) are connected to the lid (1).
2. Spray gun according to claim 1, characterized in that it has at least one gripping recess (53) formed in the upper surface (47). 3) Operation auxiliary means (46, 49, 50, 53
Spray gun (10) according to claim 1, characterized in that the top surface (47) of the lid (11) has at least one protruding raised area (46, 49). 4) an elongated land (49) with at least one raised area (46, 49) running on the top surface (47);
Spray gun (10) according to claim 3, characterized in that it has a. 5) At least two lands (49/1, 4
9/2) between which at least one gripping recess (53) is formed.
The spray gun (10) according to , 4. 6) Spray gun according to any one of the preceding claims, characterized in that the lid (11) is of circular cross-section and has an inclined surface (48) tapered radially outwardly from the longitudinal axis (37). (10). 7) Spray gun (10) according to claims 5 and 6, characterized in that the lands (49) run on the surface (48) radially from inside to outside. 8) Spray gun (10) according to claim 6, characterized in that the lid (11) has at least one further raised area (46) on its radially outwardly directed outer circumference (45). 9) Claim 8, characterized in that the at least one further raised area (46) has at least one projecting rib (46), which runs parallel to the longitudinal axis (37) of the lid (11).
Spray gun (10) as described. 10) At least one land (49) is on the surface (48)
The spray gun (10) according to Claims 7 and 9, characterized in that the spray gun (10) is connected to an attached rib (46/2) forming a corner (50) projecting upward from the outer peripheral surface (45). 11) Assign a rib (46/2) to each land (49),
2 attached to each land (49) in the circumferential direction of the lid (11)
At least one other rib (46/2) between two ribs (46/2)
11. The spray gun (10) according to claim 10, characterized in that a spray gun (10) is provided with a spray gun (6/1). 12) Arrange 12 lands (49) and one attached rib (46/2) almost evenly in the circumferential direction, and approximately between each two attached ribs (46/2). 12. Spray gun (10) according to claim 11, characterized in that a further rib (46/1) runs parallel to this in the center. 13) The back surface (51) of the land (49) away from the top surface (48) of the lid (11) is almost the longitudinal axis (37) of the lid (11)
Claims 7 to 12 characterized in that it is on a plane perpendicular to
The spray gun (10) according to any one of the above. 14) according to claim 13, characterized in that the surface (48) of the lid (11) runs at an angle of inclination (39) of less than 10° with respect to the plane of the back surface (51), preferably between 3° and 5°. Spray gun (10). 15) The lid (11) has an upper part (43) including an upper surface (47) and a lower part (41) remote from the upper surface (47),
43) is different from that of the lower part (41), and the operation assisting means (46, 49, 50, 53) are the upper part (43).
Spray gun (10) according to any one of the preceding claims, characterized in that a coupling device (67, 77) is attached to the lower part (41). 16) Spray gun (10) according to claim 15, characterized in that the upper part (43) has a smaller diameter than the lower part (41), and the upper part (43) and the lower part (41) have an annular cross section. 17) The coupling device (67, 77) is a threaded joint (67, 77)
) Spray gun (10) according to any one of the preceding claims. 18) The threaded joint (67, 77) connects the female thread (67) provided at the lower part (41) with the opening edge (70) of the blown material container (12).
18. Spray gun (10) according to claim 15, characterized in that it has an external thread (77) provided in the range ). 19) Spray gun (10) according to any one of claims 7 to 18, characterized in that the lands (49) terminate gradually inwardly in the radial direction. 20) The lid (11), the coupling device (67, 77) and the operation aid (46, 49, 50, 53) are integrally made of synthetic resin. Spray gun (10). 21) A through hole (30) in the lid (11) communicating with its interior (54) for introducing compressed air into the material container (12) to be blown.
Spray gun (10) according to any one of the preceding claims, characterized in that it is provided with a. 22) The container for the material to be blown (12) is held by the holding device (26, 27, 28) provided with the passage (25) for feeding the material to be blown.
Spray gun (10) according to any one of the preceding claims, characterized in that it is fixed to the handle (13).