WO2012143140A1

WO2012143140A1 - Bait box for controlling harmful rodents

Info

Publication number: WO2012143140A1
Application number: PCT/EP2012/001719
Authority: WO
Inventors: Rainer Bartels
Original assignee: Rattex Gmbh
Priority date: 2011-04-20
Filing date: 2012-04-20
Publication date: 2012-10-26
Also published as: DE102011018209B4; DE102011018209A1

Abstract

The invention relates to a bait box (1) for controlling harmful rodents (2), which consists of a container (3) that is closed on all sides and has at least two lateral openings (4). According to the invention, the container (3) can be opened to place a foam core (7) into which a tunnel system (5) and at least one bait chamber (6) are integrated. The channel system (5) is accessible through the lateral inlet openings (4). Due to the low thermal conductivity in the interior of the foam core (7) which results in a cozy atmosphere, harmful rodents (2) are enticed to enter the bait box (1).

Description

Bait box for fighting Schadnaqern

The invention relates to a bait box for controlling

Pests, consisting of a housing closed on all sides according to the preamble of the main claim.

Such bait boxes are used for the interpretation of poisons and are known.

For example, DE 20 2008 016 963 U1 describes a bait trap intended for rodents which contains an active substance fulfilling a bait function. The bait trap has a housing made of decomposable and / or natural materials intended for receiving the active substance. The housing is provided with at least one access opening to the active substance enabling entrance, which has a size which is limited in accordance with the rodents to be detected. The cross section of the housing is edged, so that rolling of the housing is at least hindered. The housing has at least one bait chamber which communicates with the inlet opening via an inlet section of reduced cross-section with respect to the bait chamber.

This bait trap is to be used in the wild, so that it will be physically destroyed by natural weathering after the end of its function and converted into natural humus by microbiological processes. There is a risk that residues of toxic effects

CONFIRMATION COPY Nevertheless, substances remain after the decomposition of these bait trap, so that they are also accessible to non-target organisms after decomposition. The object of the invention is to provide a reusable bait box of the type mentioned above, which has an increased acceptance of a to be combated Schadnagerart. This object is achieved by the invention with the features of

Main claim.

According to the invention, the housing has an internal foam core. In the foam core, the gait system and the bait chamber are incorporated.

The foam material of the core causes a particularly high thermal insulation and heat storage of the duct system and the bait chamber with respect to the outside of the housing. The rodent is mediated by this measure when entering the housing a high degree of comfort, so that it can be particularly reliably entrained to enter the housing. In principle, two different embodiments come into consideration for the invention, which, however, are always equivalent to each other within the scope of the present disclosure. The housing with the foam core therein may be made in one piece or together with the foam core or housing and foam core may consist of separate components. In the case of a one-piece design is additionally proposed that the housing on its outside is cured by a skin formation or a similar process, so that the foam core located therein, which is of course considerably softer, is also protected accordingly.

On the other hand, the housing may consist of a container which can be opened separately from the foam core and is self-openable, in which the foam core is inserted.

In the case of integral production of the foam core together with the housing and the hardening by skin formation on the outside, the housing would be practically formed by the hardened skin.

The sum of the volumes of the duct system and the bait chamber is preferably smaller than the size of the remaining material volume of the foam core. This is to ensure that the duct system and the bait chamber is covered by the foam thick-walled.

In addition, many plastics are suitable for the production of the foam core. The plastics should not rot, be heat-insulating and pressure-resistant.

Although it is also possible to use polystyrene, this is at the expense of the disadvantage that certain rodents eat up styrofoam.

On the other hand, so-called particle foams should be used, including in particular expanded polypropylene counts. Expanded polyethylene (EPE) or the copolymers based on PS, PE, PP are also possible.

The main difference between EPE and expanded polypropylene (EPP) is the lower price of EPP.

In a particular embodiment, therefore, the foam core is made of expanded polypropylene. Unless otherwise stated below, the materials to be used are always adjacent to each other.

In that regard, the following description applies mutatis mutandis to the other plastic materials mentioned above.

The thermal conductivity of expanded polypropylene, for example, between 0, 039 to 0, 042 W / (m · K) amount. In addition to the particularly low thermal conductivity, expanded polypropylene also has excellent cushioning properties, a high static surface load capacity, an excellent temperature resistance between -40 ° C and + 110 ° C, low water absorption and a very good resistance to solvents, oils, fuels and chemicals.

In addition, expanded polypropylene is food compatible and 100% recyclable. The manufacture and shaping of an inventive

Foam existing core designed here particularly easy with expanded polypropylene. For example, in the area of the inlet openings, the passage system can be widened in a funnel shape, so that an inlet opening is created, which allows a consistently smooth access path into the passage system, so that one possible smooth and transition-free wall contact between the whiskers of a rodent and the inner wall of the duct system takes place. It is conceivable in this case that the foam core is designed, for example, in two parts, in which case the foam core has an upper part which, in the ready-to-use state of the foam core in the area of the bait chamber, has an opening for loading the bait chamber with a bait.

Preferably, the foam core is made in one piece, so that in this case results in a particularly low production costs.

It is proposed that in the top of the foam core, the duct system and the bait chamber is embedded. With this measure, the Schaustoffkern can be made, for example, by a two-part mold without a core.

In particular, due to the diverse shaping possibilities of expanded polypropylene or other plastics, it is particularly easy to design the passage system from the top, in a meandering manner, while maintaining the cross section of the duct system, which is adapted in each case to the type of rodent to be controlled. Due to the meandering course of the duct system, the rodent is given the feeling that it is within a naturally grown environment, whereby the acceptance of the housing / container in the rodent rod is further increased. In this embodiment of the invention is the

Gang system, taking into account its cross section of the upper covered inside the bait box. This ensures that a rodent bearing does not lose all-round contact with the inner wall of the duct system in its entire course. The rodent thus expects no attack from above or from the sides and feels safe.

The meander shape of the duct system has the particular advantage that heat accumulates in the duct system in the direction of the bait chamber.

The bait chamber is designed to receive toxic baits toxic to rodents. The design of the bait is designed such that it is not removable via the gangway system. As bait baits, for example, a wax bait block can be used which has a cross section which is larger than the cross section of the duct system.

For this purpose, it is furthermore conceivable that, for example, bait pellets are introduced within a closed wire mesh, which is placed inside the bait chamber. In this case, the cross section of the wire mesh is larger than the cross section of the duct system. The mesh of the wire mesh is smaller than the size of the pellets, so that they can not be removed from the wire mesh.

In the use state of the housing or container, access to the passage system preferably increases from its floor level in the direction of a higher passage level in the manner of a ram. This can be achieved for example by a funnel-shaped inlet opening. This has the advantage that the running surface of the passage system is raised relative to a bottom surface on which the housing / container is placed. In this way, both the contact of the running surface and the contact of a person in the bait chamber can be detected. mer introduced bait with brackish water safely avoided.

In addition, it is proposed that the bottom level of the bait chamber is arranged below the level of the gangway, with the connection of the gangway with the bait chamber decreasing in a ramp from the gang level towards the bottom level of the bait chamber. The bottom of the bait chamber can be designed, for example, funnel-shaped or cupped.

The entire shape of the foam core can be carried out in one operation. The access area to the passage system as well as the connection of the passage system with the body chamber can be rounded at the respective inner walls. This measure is intended to ensure that a rodent does not lose contact with its beard hairs and the inner wall from the entry of the duct system to the exit into the bait chamber and in a complementary manner is led to the invention of entering the bait chamber.

The height of the bait chamber, for example, be as large as the seat height of a sitting during eating nuisance rod. With this measure, the container is suitable, in particular, for combating rat populations.

The housing or the container is preferably designed cuboid. As a material for the container, for example, plastic or a metallic material in question. Preferably, the container is an injection molded part, while the housing is formed by a canted and hardened outer wall of a foam core formed integrally with the housing. The inner volume of the container can be completely removed from the

Be filled foam core. Therefore, the container can be carried out without further thin-walled, since the necessary stability of the container for its intended use of the foam core can be made. This is especially true in the case of a foam core made of expanded polypropylene.

The foam core is preferably a one-piece piece of solid material which provides the container with shock-absorbing properties because the foam core preferably has all-round contact with the inside of the container. In this case, the outer surface of the container provides protection against external interference with the core surface. For introducing the foam core into the container, the top of the container is preferably designed as an openable lid part. When the lid part is open, the foam core used can protrude, for example, a little way out of the container, so that it can easily be gripped by hand for removal or for placing it at its upper region. For laying in and out of the foam core, it may additionally or alternatively also be provided on its surface e.g. Have engagement grooves. Further, for example, one of the end faces of the container can be designed as an openable side part, so that the foam core can be inserted into the container in its longitudinal direction. The outer cross section of the foam core preferably corresponds to the inner cross section of the container.

Particularly preferably, the upper side of the container is designed as an openable lid part, since in this case, the bait chamber can be achieved in an inserted foam core by opening the lid part particularly easy to reach for their placement. Preferably, the lid part is executed lockable. The lockable lid part, in particular, a toxic bait inserted into the bait chamber can be secured against unauthorized access.

In the following the invention will be explained in more detail by means of exemplary embodiments.

Show it:

Fig.l a first embodiment of the

Invention;

Fig.2 ready for use

Bait box acc. Fig.l in cross section;

3 shows the ready-to-use bait box

gem. Fig.l in longitudinal section and in

View from above;

Fig.4 ready prepared

Bait box acc. Fig.l in longitudinal section and side view;

5 shows a first example of a

openable lid part;

6 shows a second embodiment of

an openable lid part;

Fig.7 the bait box gem. 5 in three-dimensional view;

8 shows a second embodiment of the

Invention in side view and full section.

Unless otherwise stated below, the following description applies to all figures. The figures show a bait box 1 according to the invention

Fighting rodents 2. The bait box 1 consists of a The container 3 has - here - at least two lateral inlet openings 4, which allow access to a passage system 5 located inside the container 3.

Although in the present embodiments always only containers 3 are shown which are separate from the foam core 7 components, the present description should also include such embodiments in which the housing 3 is made together with the foam core 7 in one piece from the same material.

For this case, it can be additionally provided that the outer surface of the one-piece component is hardened by skin formation, so that in this way forms a box-like box, in the interior of which integrally connected to the outer wall of the housing of the foam core 7 is arranged. Furthermore, it should be expressly pointed out that it is crucially important for the invention that the housing 3 / the container 3 has at least one single inlet opening 4, which is connected via a corresponding passage system 5 in the bait chamber 6.

In the examples shown, the inlet openings 4 are arranged on the front side of the container 3. Alternatively, for example, a laterally arrangement of the inlet openings at the respective ends of the longitudinal sides of the container 4 is possible. The duct system 5 is connected to a bait chamber 6 located inside the container 3, wherein the cross section of the duct system 5 is adapted to the type of rodent to be controlled. In the exemplary embodiments shown, this is achieved by providing the rodent with an all-round contact with the body surface. This measure is based on the fact that a rodent is always anxious to keep wall contact.

The whiskers acting as sensory organs signal to the rodent that, assuming appropriate contact with the wall, they can not expect any natural enemies from the right and / or left and / or above.

This is illustrated in particular in FIG. In particular Fig.l shows that the container 3 for inserting a foam core 7 is openable. In the foam core 7, the duct system 5 and the bait chamber 6 are incorporated. In particular, Figures 2, 3, 4 and 8 show by their

Sectional view of a ready-made bait box 1 with a foam core 7 according to the invention.

The low thermal conductivity of foams causes the interior of the duct system and the interior of the bait chamber to be insulated from the outside temperature in the surrounding area of the container 3. In addition, the foam is used for heat storage. When entering the duct system 5 becomes a rodent

2 gives a comfortable feeling, since within the duct system 5 relative to the outside temperature may result in a warmer internal temperature.

The container 3 is designed like a tube, wherein in the middle of the bait chamber 6 is arranged. The bait box mer 6 is accessible via a left and a right passage system 5, each seen in itself extend in the longitudinal direction of the container 3. Due to the central arrangement of the bait chamber, a particularly warm temperature is possible in this area in contrast to the outdoor area. Due to the insulation according to the invention by a foam core 7 of the rodent 2 is enticed to enter the container 3. Due to the central arrangement of the bait chamber 6, the internal temperature can also increase when passing through the duct system 5, since there the thermal insulation is particularly effective. This means that the rodent 2 feels an increasing comfort when passing through the duct system 5 in the direction of the bait chamber 6, whereby the acceptance of the container 3 during its passage is further increased.

In particular Fig.l shows that the volume of the left and right duct system 5 and the bait chamber 6 in its sum is smaller than the material volume of the remaining foam core 7. The foam core 7 is designed as einstückig- ger and cuboid block of solid material. Here, the container 3 is also cuboid and has a corresponding interior, in which the foam core 7 is used. In particular, FIG. 2 shows that the foam core 7 has all-round contact zones with the inner wall of the container 3.

The container 3 is made thin-walled and may for example have a wall thickness between 1mm to 2mm. The foam core 7 is preferably made of expanded polypropylene. This material may, for example, have a thermal conductivity which is between 0.039 to 0.042 W / (m · K). Furthermore, expanded polypropylene has a high static surface load capacity and shock-absorbing properties. The container 3 according to the invention obtains its stability by the foam core 7 embodied according to the invention and can therefore be as described above Have thin walls without loss of stability are to be feared. The surface of the foam core 7 is protected by the outer surface of the container 3 against external influences.

As a material for the container 3, for example, plastic, metal or weather-resistant wood can be used. In particular Fig.l shows that in the top of

Foam core 7, the duct system 5 and the bait chamber 6 is inserted. The foam core 7 embodied in this way can be shaped with little effort, for example with a two-part tool.

Furthermore, FIGS. 1 and 3 in particular show that the passage system 5 is meander-shaped when viewed from above. Through this form, the duct system 5 takes a course that sounds natural. As a result, the confidence in a safe crossing of the passage system 5 is to be increased at the rodent 2. The cross section of the duct system 5 is adapted in its entire course to the respective type of rodent to be controlled. In addition, heat accumulation in the direction of the bait chamber 6 occurs due to the meandering shape of the duct system.

In particular, Figures 4 and 8 show that the access 15 to the duct system 5 ramps in the use state of the container 3 from its bottom level 8 toward a higher level 9.

In the use state of the container 3, the gear level 9 is set high relative to a bottom surface 17. This is shown in particular in FIG. With this measure it should be avoided that the running plane of the duct system 5 is wetted, for example, with brackish water. This has the advantage that also the contact of one inside the bait chamber 6 a brought bait bait 14 with brackish water can be safely avoided.

In addition to this, FIGS. 4 and 8 likewise show that the floor level 10 of the bait chamber 6 is arranged below the passage level 9.

The connection 16 of the duct system 5 with the bait chamber 6 drops from the aisle level 9 in the direction of the ground level 10 of the bait chamber 6 like a ramp. For this purpose, the bait chamber 6 is executed with its bottom surface trough-shaped.

It can be seen in particular from FIG. 1 that the respective access 15 is tapered conically from its respectively adjacent inlet opening 4 in the direction of the passage system 5. In the transition region between the access 5 and the cross section of the aisle system, the local inner wall is executed rounded. By this measure, a consistently smooth access path in the duct system 5 is to be achieved. In this case, the smoothest and transition-free wall contact possible between the beard hairs of the failper bearing 2 and the inner wall of the access 15 or of the duct system 5.

In particular, FIGS. 3, 4 and 8 show that the body chamber 6 is provided for receiving a rodent toxic bait 14 which is not removable via the gangway system 5. For this purpose, the bait 14 shown in Figure 3 is designed as a wax bait block, with a cross section which is larger than the cross section of the duct system fifth The wax bait block may include, for example, active ingredients from the coumarin derivative family. Alternatively, FIGS. 4 and 8 show bait pellets which are accommodated within a closed wire mesh and thus form the bait 14. The mesh of the wire mesh here is smaller than the grain size of the pellets, the Cross-section of the wire mesh is greater than the cross-section of the duct system. 5

With these measures it is prevented that a rodent 2 can drag the bait 14 through the duct system 5 to the outside.

In particular, Figure 8 shows that the height 11 of the bait chamber 6 is at least as large as the seat height of a 12 sitting at eating nuisance rod 2. Here, the invention makes use of the knowledge that in particular rats occupy a sitting position in their food intake.

The figures show that the top of the container 3 is designed as an openable lid part 13. In particular, in Figures 1 and 2 it can be seen that the lid member 13 is attached with a hinge on the longitudinal sides of the container 3. In particular, Figure 2 shows that the cover part is designed in cross-section ü-shaped. When the lid part 1 is open, the inserted foam core 7 protrudes with its head out of the container 3. The foam core 7 can thus be easily grasped at its head area and inserted into the container 3 or removed from the container 3.

Furthermore, in particular Fig.2 shows that the cross section of the duct system 5 is U-shaped and is covered by the inside of the cover part 13. In this embodiment, the rodent bearing 2 illustrated there is in contact both with the inside of the cover part 13 and with the inner wall of the duct system 5 via a plurality of contact points 20 with its body hair.

The lid part 13 has a gap 19 with the container 3 in the closed state. At this point can For example, a locking mechanism may be provided.

In particular, FIGS. 5 and 6 show further exemplary embodiments of a cover part 13. In Figure 5, the lid part 13 is designed as a removable cover part. In Figure 6, the lid part 13 is formed by two mutually pivotable parts, which are each articulated on one of the longitudinal sides of the container 3.

In particular, FIG. 7 shows the container 3 according to FIG. 5 in a three-dimensional view. It can be seen here that the cover part 13 is lockable. The introduced in the container 3 feed bait 14 is secured by this measure against unauthorized access.

As an alternative to the exemplary embodiments shown, the container 3 can be designed to be openable for insertion of the foam core 7 with a side flap. In that case, the foam core 7 can be inserted laterally in the container 3. Preferably, the top of the container 3 is designed as an openable lid part 13, since in this case, when inserted foam core 7, the bait chamber 6 is accessible by simply opening the lid member 13. Thus, the duct system 5 and the bait chamber 6 in the inserted state of the foam core 7, for example, for their intended use also be cleaned easily. As a suitable material for producing the foam core alone or in combination with a hardened skin, it is proposed to choose a particle foam selected from expanded polypropylene (EPP), expanded polyethylene (EPE) or copolymers based on polystyrene (PS), polyethylene (PE) and polypropylene (PP). The particular advantage of using expanded polypropylene (EPP) is that this material is significantly cheaper than EPE and satisfies all the necessary requirements with regard to the required properties.

However, the enumeration of these materials can by no means be regarded as complete and conclusive, since there are also a variety of other foams which at least partially meet the required properties, in particular thermal insulation and thermal insulation.

LIST OF REFERENCE NUMBERS

1 bait box

2 rodents

3 containers / housing

4 entrance opening

5-speed system

6 bait chamber

7 foam core

8 floor level of the tank

9 gear level

10 floor level of the bait chamber

11 height of the bait chamber

12 seat height

13 cover part

14 baits

15 access

16 connection

17 floor area

18 hinge

19 collapse

20 contact point

Claims

claims

Bait box (1) for controlling rodent pests (2), comprising a housing (3) enclosing the bait box and having at least one lateral entry opening (4) which allows access to a passage system (5) located inside the housing (3) is connected to at least one bait chamber (6) located inside the housing (3), wherein the cross section of the duct system (5) is adapted to the respective type of rodent to be controlled, characterized in that the housing (3) has a foam core (7) inside. Particle foam selected from expanded polypropylene (EPP), expanded polyethylene (EPE) or copolymers based on PS, PE and PP incorporating the duct system (5) and the bait chamber (6) and incorporating the duct system ( 5) and the bait chamber (6) comprises thick walls.

Bait box (1) according to claim 1, characterized in that the housing (3) together with the foam core (7) is made in one piece from the same material.

Bait box (1) according to claim 2, characterized in that the housing (3) is hardened on its outside by skin formation. Bait box (1) according to claim 1, characterized in that the housing (3) is a separate from the foam core (7) produced and openable container in which the foam core is inserted.

Bait box (1) according to claim 4, characterized in that in the top of the foam core (7), the passage system (5) and the bait chamber (6) is embedded.

Bait box (1) according to one of claims 1 to 5, characterized in that the passage system (5) is designed meandering from above.

Bait box (1) according to claim 4 or 5, characterized in that the foam core (7) is made in one piece.

Bait box (1) according to one of claims 1 to 7, characterized in that the bait chamber (6) is provided for receiving a bait rod (2) toxic bait (14), which is not on the duct system (5) removable.

Bait box (1) according to one of claims 1 to 8, characterized in that the access (15) to the passage system (5) ramps in the use of the container (3) from its bottom level (8) towards a higher level (9) ,

Bait box (1) according to claim 9, characterized in that the bottom level (10) of the bait chamber (6) is arranged below the gangway level (9), the connection (16) of the gangway (5) to the bait chamber (6). from the aisle level (9) towards the ground level (10) of the bait chamber (6) ramps down.

Bait box (1) according to one of claims 1 to 10, characterized in that the height (11) of the bait chamber (6) is at least as large as the seat height (12) of a sitting during eating nuisance rod (2).

Bait box (1) according to one of claims 1 to 11, characterized in that the container (3) is cuboidal.

Bait box (1) according to one of claims 4 to 12, characterized in that the upper side of the container (3) is designed as an openable lid part (13).

Bait box (1) according to claim 11, characterized in that the cover part (13) is lockable.

Bait box (1) according to claim 1 to 14, characterized in that two or more lateral inlet openings (4) are provided, which are both connected to the duct system (5) to the bait chamber (6).