WO2002078860A1

WO2002078860A1 - Spatula having a discharge opening for a filler

Info

Publication number: WO2002078860A1
Application number: PCT/EP2002/001153
Authority: WO
Inventors: Martin Haneball
Original assignee: Martin Haneball
Priority date: 2001-02-05
Filing date: 2002-02-05
Publication date: 2002-10-10

Abstract

The invention relates to a spatula (1) comprising a spatula neck (40) and a distributing surface (10), which is slanted in relation thereto and which extends up to a smoothing edge (2), whereby one side of the spatula neck (40) is provided with a hand pump connection (5), with which a spatula discharge (T) of a hand pump (H) is detachably connected to a spatula channel (42) inside the spatula neck (40). The spatula channel (42) leads into a widening distributing space (30), which terminates in a slot-like discharge opening (3) on the distributing surface.

Description

Spatula with opening for filler

The invention relates to a spatula with a spatula neck and an inclined distribution surface that extends to a peeling edge.

Such spatulas are generally known; they have a handle on the spatula neck. If such a spatula is used to apply and smooth mass on an uneven or cracked surface or one with a joint, it is necessary to squeeze and apply the appropriate amount of filler from a cartridge through a suitably cut nozzle with a hand pump, known as a pistol, or in the joint. There are thus two operations required, and often more filler must be added or an excess removed, which u. U. causes bumps and rework, e.g. B. grinding, required if the filling must be carried out completely flat.

It is an object of the invention to provide a new type of spatula which can carry out the operations in one and provides faultless filling.

The solution is that the spatula neck has on the one hand a hand pump connection with which a spatula outlet of a hand pump can be detachably connected to a spatula channel in the spatula neck and the spatula channel leads into an expanding distribution space which ends in a slot-like outlet opening on the distribution surface. Advantageous refinements are specified in the subclaims.

The new design of the filler with a direct connection to a hand pump that supplies the filler in a known manner, the mass being applied directly to the surface to be smoothed through a slot, which is followed by the peeling edge in the working direction, enables uninterrupted work even on long joints and large areas. While pulling the pump handle is operated with one hand as required; the other hand guides the spatula and presses it on.

In order to achieve a good mass distribution, the broad slot on the side opposite the peeling edge has been expanded by approximately 2 to 3 times in a continuation of the Spachelt channel. This central opening diverges rounded into the slot.

The straight edge of the slot is about 3 - 5 mm from the peel edge and extends similarly close to the side edges of the spatula.

The spatula is designed to take up the distribution space as an approximately prismatic body, to which the neck, which surrounds the feed channel, is connected, and a face plate which tapers to this.

The spatula channel in the spatula neck is expediently tapered until it enters the distribution space and is designed to accommodate a commercially available spout, which is cut by approx. 2.5 cm and cut open so that it is screwed onto a cartridge that is screwed into the Hand pump is inserted.

The hand pump is enclosed in the front area by an essentially hollow cylindrical connecting part, the axial one Has guide channels that may receive protrusions protruding laterally from some hand pumps.

The entire front unit of the hand pump is advantageously injection molded from plastic. A commercially available abrasion-resistant plastic with moderate elasticity, which is available under the trade name S-green and is used in construction, has proven itself in tests.

The plastic is so elastic that the connection cylinder with its fit can be easily pushed onto and removed from the pump. The filler adheres only slightly to the plastic, so that the dried mass is easy to remove.

The spatula version with the free wide slot nozzle that is expanded on the inside on one side is suitable up to a width of approx. 80 mm.

A wider filler version up to around 130 mm is advantageously equipped in the central area with a spigot, which sits close to the inlet of the feed channel in the distribution space and leaves side gaps and an upper gap free on the inlet side there and up, whereby the filler to the side and into the central extension is preferred.

The distribution pin is preferably flattened on the inflow side and inclined in the inflow. Its length and thickness correspond approximately to the diameter of the feed channel without the spout used.

Another very advantageous embodiment of the spatula has partial distribution surfaces which are angled at 90 ° from one another, so that corner areas can be immediately filled with it without having to work with excess material on a first processed side, which is drawn in when the other side is pulled off got to. The new angle spatula allows even inexperienced people to have a complete gap Filling a corner area in one pass without settling.

Preferably, the different types of filler are traded as a kit, which is accompanied by a cleaning tool, which is provided at both ends with different wedge and pointed ends that fit the distribution spaces.

The spatula is preferably injection molded from one or more plastics. In the latter case, the peel edge in particular is made from a softer material. It has e.g. proven to manufacture the base body from the stronger material PP 50 and the pull lip from PP 40, both materials being injected into the mold.

The pull-off edge preferably protrudes laterally to a point from the supporting edge by 1-3 mm, so that it closes the joint area elastically and forms smooth edges on the filler material.

Advantageous designs are shown in FIGS. 1 to 14.

Fig. 1 shows a narrow spatula in perspective transparent;

Fig. 2 shows a front view of Fig. 1;

Fig. 3 shows a plan view of Fig. 1;

Fig. 4 shows a side view of Fig. 1;

Fig. 5 shows a longitudinal section A - B to Fig. 4;

Fig. 6 shows a section X to Fig. 4;

Fig. 7 shows a longitudinal section AI - Bl to Fig. 9;

Fig. 8 shows a section X 1 to Fig. 9;

Fig. 9 shows a wide spatula in side view;

Fig. 10 shows a perspective of Fig. 9;

Fig. 11 shows a cleaning tool in supervision;

Fig. 12 shows the cleaning tool in side view;

13 shows a corner spatula attachment in perspective,

14 shows a front view of FIG. 13,

15 shows a top view of the corner filler attachment,

16 shows a side view of FIG. 13,

17 shows the enlargement X to FIG. 16, Fig. 18 shows an enlarged section CD to Fig. 16;

19 shows a top view of an asymmetrical corner filler attachment,

Fig. 20 shows a perspective of an asymmetrical corner filler.

Fig. 1 shows a transparent perspective view of a spatula 1, which is to be attached to the front of a commercially available cartridge hand pump H with a semi-cylindrical connecting part 5. A spatula neck 40 with a conical feed channel 4 extends from the connecting part 5 into a spatula head which extends transversely and is approximately prismatic in cross section.

At the front there is the distribution surface 10 with the pull-off edge 2 located at the wide end.

The spatula head is stiffened from its lateral ends to the connecting part 5 by a face plate 41. The feed channel 4 is designed to accommodate a conventional slightly shortened syringe nozzle, which surrounds the spatula channel 42. This ends in the head in a distribution space 30, which ends on the distribution surface 10 in an outlet opening 3 as a slot. The wide slot 3 has an enlarged central opening 36 in the center opposite the pull-off edge 2, which ends in a curved manner in the slot.

The spatula width SB is approx. 80 mm at the pull-off edge, and the wide slot 3 is approx. 60 mm wide and 4-5 mm wide. The length SL of the distribution surface 10 is approximately 30 mm; it widens in a trapezoid shape up to the pull-off edge 2. The fitting cylinder 50 protrudes about 50 mm above the pump H with a slide-on length AL. The spatula neck 40 extends from its end plate 51. Flat and parallel guide channels are formed in and on the cylinder 50 to accommodate the projecting areas of the pump H.

FIG. 2 shows a front view of the spatula 1. The bevel of the spatula body, which is stepped in the transverse direction, and the slot 3 with the further central opening 36 and the central rear feed channel 4 in the center on the distribution surface 10 can be seen. The trigger edge 2 is spaced parallel to the straight one Edge of the slot 3.

3 shows a top view of the spatula 1. The trapezoidal spatula head which is supported with the face plate 41 to the pump connection 5 can be seen.

4 shows a side view of the spatula 1. In the conical feed channel 4 of the spatula neck, the shortened spout T extends from the cartridge to the appropriate constriction when it enters the distribution space 30. The distribution surface 10 has an inclination angle N of approximately 130 ° central axis A - B on.

FIG. 5 shows a cross section A - B, in which the shape of the distribution space 30, which continuously widens from the entry width EW of the conical channel 42 with approximately 120 ° and is rounded at the end, can be seen.

Fig. 6 shows the rear rounding 35 of the distribution chamber 30 and the central opening 36 in section.

Fig. 7 to 10 show a wider spatula, which corresponds essentially to that described above. For a better distribution of the leveling compound in the distribution space 30A, a distribution pin 31 is inserted in the center thereof, which has side gaps 32 on the side and an upper gap 34 in the entry area at the top leaves free. It is arranged so as to protrude into the enlarged area of the central opening 36 in the direction opposite the flow with a pin inclination angle ZW of approximately 20 °. Its diameter ZD and its pin height ZH are slightly larger than the entry width EW of the spatula channel 42. On the inflow side, the pin 31 has a flattening 33 which allows the material to flow to the side. The rear contour of the distribution duct -30A begins on both sides symmetrically with a curve of approx. 50 mm radius convex up to an area that runs with a quarter circle of approx. 10 mm radius to the other, straight slot edge. The total slot width is 110 mm, for example, and the width of the peeling edge is 125 mm.

Fig. 9 shows a side view of the wide version of the spatula with the cut positions AI - Bl, XI.

11 and 12 show two views of a cleaning tool 6. This is made of a square material of 12 x 12 mm ² cross section. The middle region is a grip piece 60. This is followed by a wedge piece 61 at one end, which after approx. 50 mm at a height of 6 mm ends in a wedge edge 64 with a wedge angle KW of approx. 13 °. On the other hand, from the grip piece 60 there is a tapered intermediate piece 62, which is angled into a pointed finger 63. The finger inclination FN to the tool axis is approx. 30 °. The finger 63 runs at a finger width FB of approx. 3 mm rounded and perpendicular to it at an acute angle of approx. 6 ° in a tip 65 similar to a turning tool for round grooves or round threads.

Fig. 13 shows a corner spatula, which consists of the hand pump connection 5 with the feed channel 4 and a spatula head 11, which is detachably attached to the tapered feed channel 4 and has two partial surfaces 10A, 10B, which are at right angles to one another, next to the outlet opening 3 in a blunt joint surface IOC near the outlet end ends. The interior of the spatula head is largely excluded where there is no stress.

14 shows a front view of the spatula head 11. Flat recesses 70, 71 can be seen in the two distribution surfaces 10A, 10B to the side of the front wall 72.

FIG. 15 shows a top view of the spatula head 11 and FIG. 16 shows a side view thereof. In the shallow recess 70, a collecting trough 74 rises at an angle of 15 ° from the top. On the top side, the collecting channel 74 is delimited by a lip-shaped pointed pull-off edge 75, as can be seen from the enlarged side view of the tip, FIG. 17, and from the enlarged section C-D, FIG. 18. The peeling edge 75 is approximately 1 mm high and approximately 0.5 mm wide at its root and has an angle of approximately 30 ° at the tip. The collecting trough 74 is rounded on the inside and about 1.5 mm deep. Below the groove 74, the surface level is lowered by approximately 1.5 mm and above approximately 1 mm. The channel 74 and the peeling edge 75 end approximately 1 mm before the tip of the distribution surfaces 10A, 10B.

The IOC joint surface runs at a slightly increasing angle from the front edge to the rear and is increased by 1 - 2 mm after about 40 mm. This makes it possible to guide the spatula to an area jointed on the other side without the material there being pushed on.

For cases in which the wall is to be filled from one side of the joint to be closed, there is a right and a left asymmetrical design of the spatula head 11A, the left of which is shown in FIGS. 19 and 20. One of the partial distribution surfaces 10D is offset in the spatula direction relative to the other partial surface 10A to the rear approximately to the level of the center of the outlet opening 37 of the conical channel 42. Reference symbol list:

1 spatula

10 distribution area

10A side area

10B partial area on the side

IOC partial area = joint cover area

Shortened 10D partial area

11 spatula head ILA spatula head

2 peel edge

3 outlet opening (wide slot)

30 distribution room 30A distribution room

31 distributor spigot

32 side columns

33 flattening

34 upper gap

35 Distribution rounding

36 central opening

37 Leaving at 42

4 feed channel

40 spatula neck

41 face plate

42 cone channel (spatula channel)

5 hand pump connection

50 fitting cylinders

51 end plate

52 guide channel

6 cleaning tool

60 handle

61 wedge piece

62 intermediate piece

63 fingers

64 wedge edge

65 top

70 recess at 10 A.

71 recess at 10B

72 front wall

74 collecting trough

75 peeling edge AL postponement

EW entrance width

FB finger width

FN finger inclination

H hand pump

KW wedge angle

N angle of inclination

SB spatula width (80 mm)

SL spatula length (30 mm)

T spout (spatula outlet)

ZD pin diameter

ZH pin height

ZW pivot angle

Claims

claims

1. spatula (1) with a spatula neck (40) and an inclined distribution surface (10), which extends to a peeling edge (2), characterized in that the spatula neck (40) on the one hand has a hand pump connection (5) with which a spatula outlet (T) of a hand pump (H) can be detachably connected to a spatula channel (42) in the spatula neck (40) and the spatula channel (42) leads into an expanding distribution space (30) which opens into a slot-like outlet opening (3) the distribution area (10, 10A, 10B, IOC, 10D) ends.

2. spatula according to claim 1, characterized in that the outlet opening (3) about 5 mm from the peel edge (2) runs parallel to this, on both sides about 10 mm shorter than this and essentially a width of about 5 mm Has.

3. Spatula according to claim 2, characterized in that the outlet opening (3) in the center of the pull-off edge (2) is expanded 2 to 3 times to a central opening (36) which ends in an arcuate convex shape in the outlet slot (3) ,

4. spatula according to claim 3, characterized in that a distribution pin (31) is arranged in the central opening (36) perpendicular to the outlet slot (3), which has a narrow upper gap

(34) and narrow side gaps (32) at the exit of the spatula channel (42) to the distribution space (30).

5. spatula according to claim 5, characterized in that the distribution pin inclined towards the spatula channel (42) and flattened it.

6. Spatula according to one of the preceding claims, characterized in that the distribution space (30) is rounded on the side and on the back.

7. spatula according to one of the preceding claims, characterized in that it is supported to the spatula neck (40) up to the hand pump connection (5) by a face plate.

8. Spatula according to one of the preceding claims, characterized in that the hand pump connection (50) is essentially a hollow cylindrical cap which contains axially parallel guide channels (52).

9. spatula according to one of the preceding claims, characterized in that the spatula channel (42) for receiving a commercially available cartridge nozzle (T) is designed to fit and tightly encloses this at the entry into the distribution space (30).

10. spatula according to one of the preceding claims, characterized in that it is injection molded from at least one type of plastic.

11. spatula according to claim 10, characterized in that the plastic is commercially available material of the quality "S-green" or PP 50 and the peeling edge (2, 75) consists of a softer plastic material such as PP 40.

12. Spatula according to claim 1, characterized in that the distribution surface (10A - IOC) from a joint surface (IOC), which corresponds approximately in width to a joint width to be closed and laterally at 45 ° in each case angled partial surfaces

(10A, 10B, 10D) is composed.

13. Spatula according to claim 12, characterized in that the left or the right angled part-distributing surface (10D) from the tip ends approximately tapered by the width of the joint surface (IOC) from its tip.

14. Spatula according to claim 12 or 13, characterized in that the angled partial distribution surfaces (10A, 10B, 10D) each have a flat recess (70, 71) and from the A collecting channel (74) rises about 15 ° therefrom, over which a pointed pull-off edge (75) is arranged in parallel and that the pull-off edges (2, 75) taper off laterally at their free ends to the distribution surface (10, IOC). overtop.

15. spatula according to claim 14, characterized in that the collecting channel (74) is rounded on the inside and bevelled about 1.5 mm deep and the peeling edge (75) with about 30 ° acute angle protrudes about 1 mm high.

16. Spatula according to one of claims 14 or 15, characterized in that the joint surface (IOC) from the tip in the pulling direction increases after about 1 mm at a flat angle of 2-3 ° and after about 40 mm in a low Level continues to rise.

17. Spatula according to one of claims 12 to 16, characterized in that the feed channel (4) and the partial surfaces

(10A - 10D) receiving part in the spatula head (11) from the hand pump connection (5) is designed to be releasably conically attachable.

18. Spatula according to one of the preceding claims 12 to 17, characterized in that each is designed for a joint width of different widths, such as 8, 10 or 12 mm.

19. Kit, consisting of several spatulas of different widths and with a flat or angled distribution surface (10, 10A, 10B) and a cleaning tool (6).

20. Cleaning tool for spatula (1) according to claims 1 to 19, characterized in that it consists of a central handle (60) and end-tapered sections (61, 62) which in a wedge edge (64) and one in one plane narrow rounded tip (65).