TWI508830B - Werkzeugkasten mit schaumstoffeinleger - Google Patents

Description

Toolbox with foam inserts

The invention relates to a tool kit for housing an elongated hand tool according to the features of the preamble of claim 1.

Toolboxes for carrying a number of hand tools to various work locations are disclosed in the prior art.

To this end, the tool kit itself houses various extremely different hand tools, such as screwdrivers, open-end wrenches, plum wrenches, fork wrenches, but also complex socket wrench sets, including hand-operated components such as a torque wrench. Extension, insert or socket wrench set.

In order to enable the correspondingly used assembly worker to reach the working position to grasp the tool, such grasping makes it easy to prepare for work quickly, and the classification grid in each tool box is disclosed in the prior art. Here, for example, the entire set of open-end wrenches is stored in a sorting grid, so that the assembly worker can immediately obtain at least the correct type of tool by extending into the sorting grid and can find the correct tool size after a short search.

Furthermore, toolboxes, in particular made of plastic, are disclosed in the prior art, which have different recesses in the toolbox and a corresponding recess for a corresponding tool. In this case, the screw wrenches of the type 10 and 11 are inserted into the respective recesses or are held in a positionally fixed manner by the form-locking engagement. The advantage of this toolbox is the ability to grab the tools you need directly.

For example, EP 2 045 048 A1 discloses an insert for a container having a recess for a correspondingly arranged tool, so that the tool can be quickly found here. So always a good overview of the tools you carry.

Due to the space requirements of a well-classified kit, only a limited amount of space is provided in a conventionally stored tool device.

Accordingly, it is an object of the present invention to provide a toolbox that has a smaller outer dimension than a toolbox known in the prior art and that can accommodate a larger kit while providing a good overview and gripping. The possibility of tools in the toolbox.

The above object is solved by means of the inventive tool kit according to the features of claim 1 for accommodating an elongated hand tool, in particular for a storage kit. Advantageous development variants of the invention are given in the dependent claims.

The present invention relates to a tool case for housing an elongated hand tool, in particular for storing a kit comprising a socket wrench set, a screwdriver and a screw wrench, the tool case having a base body and a cover, wherein The hand tool is arranged in a vertical orientation in the basic body, and an insert made of an elastic material is arranged in the basic body for a fixed position.

The present invention thus enables a large number of hand tools in the form of large scale kits to be placed in a toolbox that does not have a larger size than the tool kits known in the prior art. Conversely, in the context of the present invention, the outer dimensions of the toolbox are even designed to be smaller than known toolboxes. At the same time, it has improved the capacity for placing hand tools (Kapazit). Tsm Glichkeit). It is thus possible to arrange more than 50, in particular more than 80 and particularly preferably more than 100 pieces of the kit in a toolbox of the invention at a glance and to be able to quickly grasp each individual element. Another particular advantage of the kit of the invention is that the kit located inside the toolbox can be grasped directly from above when resting on the working position or on the work surface.

Thus, in particular, the original hand tool can be removed from the toolbox from above, which constitutes a work ergonomic and rapid removal or insertion position.

In particular, the insert is made of a foamed material. In this regard, very different plastics can be used which are constructed to have a cell structure and a lower density. Here, in particular, a closed-cell type foamed material in which the walls between the respective cells are completely closed can be used, or an open-cell type foam material in which the cell walls are not closed can also be used. Foams comprising mixed cells of the above two cell types are also contemplated. Also contemplated are integral foamed materials having a closed thick outer skin and a core of cells opposite thereto. In particular, the foamed material can have different densities and/or at least partially different hardnesses here.

However, in the context of the present invention, the insert can also be made of polystyrene material or extruded polystyrene rigid foam (Styrodur material). In this case, the position-locking tool can be positioned in a fixed manner and can be fixed in a friction-locking manner. It is impossible to slip off the tool.

Furthermore, it is particularly preferred to use a rubber material or a tantalum material. In the case of foamed materials, in particular PU foams and/or PE foams are used. By this it is meant a polyethylene foam or a polyurethane foam.

Furthermore, it is preferred that the insert fills the substrate. In the context of the invention, the base body is embodied here in particular in the form of a pot, in which the base body fills the pot almost completely. In this case, the base body rests on all sides of the basin and on the bottom of the basin, so that a positive-locking bond is produced.

In order to accommodate each hand tool itself, a receiving opening is formed in the insert, preferably a cross section of each receiving opening is constructed separately for each hand tool. In the context of the invention, the cross-sectional area of the receiving opening essentially corresponds to the cross-sectional area of the hand tool to be inserted into the receiving opening. Depending on the application and also the tool, the cross-sectional area of the receptacle can be configured to be slightly smaller than the cross-sectional area of the corresponding hand tool, so that a non-slip position of the friction lock can be achieved. The cross-sectional area of the receiving opening may also be slightly larger than the cross-sectional area of the corresponding hand tool if necessary, so that it can be easily taken out or inserted.

In the context of the invention, the receiving opening is 1 to 40%, preferably 5 to 30%, in particular approximately 10% smaller than the outer dimensions of the respective hand tool to be inserted, in particular the outer dimensions of the tool shank. As a result, good positional and force-locking and form-locking retention as well as a simple compromise between simple insertion and removal are achieved.

In another preferred embodiment, the receiving opening has at least one unloading groove on the edge. In the case of a foamed material or a polystyrene insert, it is thus ensured that the cross-section of the receiving opening is not formed by cracks or the like in the case of many years of use and multiple or even thousands of insertion and extraction processes. The area caused damage. In the case of the unloading groove, the surface stress appearing on the inner surface of the receiving opening is thus unloaded. The receiving opening can therefore also be embodied as a star or a cross-shaped groove.

In a further preferred embodiment of the invention, a cleaning lip is provided in the receiving opening itself. The tool can be cleaned during insertion or removal by cleaning the lip or the receiving opening itself or the inside of the receiving opening. For example, the oil or grease of the tool can be wiped off and, if necessary, absorbed by the open-cell structure of the inner surface of the insert such that the tool is at least roughly cleaned.

In another preferred embodiment, the insert is constructed in multiple layers, the layers of each layer extending perpendicular to the vertical structure of the tool. The insert can thus be produced at a particularly low cost. Different layers are manufactured separately. This makes it possible to match each layer individually to the required situation. Thereby, for example, the layer located above can be made harder in terms of its material construction than the layer located further below. This ensures that the position fixing is achieved in the upper region, on the contrary, since the lower layer is softer, the force for insertion itself remains small. Furthermore, compared to the production of only one layer, for example configured as 15 or 20 cm or even higher, it is significantly less costly to produce multilayers having a height of up to 2 cm, in particular up to 3 cm, preferably less than 10 cm.

Furthermore, in the context of the invention, it is preferred that the receiving opening of the upper layer is provided with a smaller receiving diameter than the hole of the lower layer. As a result, a guiding action and a simultaneous clamping action are ensured in the region of the upper opening, which prevents the stored tool from shaking. In this case, the lower layer serves primarily as a guide, so that both easy insertion and removal are ensured and the hand tool is nevermore reliably and securely held in the receptacle. In the case of foamed materials, the density is between 5 and 80 kg/m ³ , in particular between 10 and 70 kg/m ³ , preferably between 15 and 40 kg/m ³ and particularly preferably between 20 and 30 kg. Between /m ³ . In the context of the invention, for the upper layer, the density is preferably between 20 and 40 kg/m ³ , in particular between 25 and 35 kg/m ³ and particularly preferably between 28 and 32 kg/m ³ . In contrast to this, the density of the lower intermediate layer and the lower layer is between 10 and 50 kg/m ³ , in particular between 15 and 25 kg/m ³ and particularly preferably between 18 and 23 kg/m ³ . This in turn ensures that an enhanced clamping action is achieved by increasing the density of the upper layer, and on the lower layer, more emphasis is placed on the pure guidance of the inserted hand tool.

In the context of the invention, the inner diameter of the receiving opening of the upper layer is preferably embodied as an interference fit. In particular, the diameter of the receiving opening is reduced by 1 to 40%, in particular between 5 and 30%, in particular between 10 and 20%, relative to the outer contour of the hand tool to be inserted. In the intermediate layer and the lower layer, a transition fit is preferably provided, the diameter of the receptacle opening being reduced by 1 to 30%, in particular 2 to 20% and particularly preferably approximately 10%, relative to the outer contour of the hand tool to be inserted.

It is therefore also within the scope of the invention to combine a layer made of polystyrene material with another layer made of plastic foam. Within the scope of the invention, the individual layers can, for example, be bonded to one another. However, it is also conceivable for the individual layers to be connected to each other by means of a positive-locking engagement, in which case the positive-locking engagement between the individual layers can be formed by module or by means of a through bolt.

In a further advantageous embodiment of the invention, the receiving opening in the insert for accommodating the individual hand tools is associated with the insertion depth of the hand tool. The receiving opening is constructed in particular in layers. In the context of the invention, it is thus possible, for example, to configure the receiving opening for each hand tool to be inserted in the uppermost layer to extend completely through the layer. The manufacture can be carried out, for example, by means of a stamping or perforating device.

In relation to the insertion depth of the tool, for example, with respect to a screwdriver or open-end wrench having an insertion depth of up to 10 cm or more, the socket wrench set has only a small insertion depth of up to 2 to 3 cm, from the top Each successive layer is seen to match the respective insertion depths of the hand tool by punching the receiving opening in the corresponding layer.

It is therefore within the scope of the invention to accommodate tools having a limited insertion depth due to their own structure. For example, a screwdriver can collide with the uppermost layer in the region of the handle due to its tool shank and the handle attached thereto, so that it cannot be inserted further. In contrast, the socket wrench set itself is constructed as a cylinder and will fall correspondingly into the deeply configured receiving opening. Therefore, it is not necessary here to make the insertion of the socket wrench set too deep by the form-locking base from below. In this case, the insertion depth can be adjusted individually for each tool by means of individual sections, in that the corresponding receptacles are not formed in the deeper layers.

In the context of the invention, in particular the formed insertion opening or the bottom of the insertion groove is in turn formed with an additional bottom insert, thereby avoiding damage to the polystyrene or foam material. The bottom insert can be made, for example, of metal or plastic, but at least made of a material that is harder than the insert.

In particular, the lower layer which rests on the base of the base body has a corrugated structure, preferably a bump structure and in particular an acoustic foam surface structure. The structure is here adapted according to the extension of the egg carton. As a result, the entire insert can be positioned in the base body in such a way that a bottom damping is produced with the insertion of the tool. When the assembler vibrates a screwdriver or the like into the tool case of the present invention, the corrugated structure will weaken the insertion pulse. It can thus be ascertained that the toolbox with the insert of the invention can be operated in a particularly ergonomic manner in daily use. The insertion noise can also be attenuated, which in turn reduces the acoustic work intensity.

Furthermore, it is preferred to provide an insert plate on the upper end of the insert, the insert plate being connected to the insert and/or to the base body. The insert plate is preferably and in the simplest embodiment refers to an orifice plate which prevents the insert, in particular the uppermost layer of the insert, from spalling during many years or decades of use. The insert plate is responsible for the fact that the uppermost surface is not damaged on the one hand and the individual hand tool targets are accurately inserted back on the other hand. For this purpose, for example, the insertion plate can be configured for each tool by means of text, engraving or other markings. This also avoids the sharp insertion of sharp hand tools, such as a slotted screwdriver, into the soft foaming material of the insert.

Preferably, the insert plate is made of a harder material than the insert, preferably a plastic, in particular a metal material, and very particularly preferably a light metal such as an aluminum material. Thereby, the insertion plate can be manufactured at low cost while the quality of the insertion plate is kept small, which is important for keeping the tool case of the present invention small in weight.

For this purpose, the insertion plate is particularly preferably connected to the uppermost layer, for example by a force-locking and/or a material-locking connection. Here, the insert can be bonded, for example, to the uppermost layer. Furthermore, it is conceivable that the insert plate itself has a fastening core, which in turn can be engaged with the uppermost layer. However, the insert itself can also be connected to the substrate. For example, it is conceivable here to plug or bolt. In the context of the invention, the insert itself can also be attached to the base body by means of an insert plate. For example, the insert can be inserted into the basic body in a positively locking manner and can be fastened again in the form of a positive fit by the insert. For this purpose, the insert plate is preferably chamfered on at least two sides, preferably on all four sides.

In a further advantageous embodiment of the invention, the insert plate has an insertion opening which, in its cross-sectional configuration, is adapted to the respective tool cross section to be inserted. In the special case where the tool head is larger than the tool shank, as in the case of a fork wrench, the insertion opening must preferably have a corresponding insertion opening so that the yoke of the fork wrench can pass through the insertion opening.

Furthermore, it is preferred to provide a locking element for fixing the position of the hand tool inserted therein in the insertion plate in at least one insertion opening. The locking element can be understood to mean, for example, a clip, a clamping lip or a spring tab, which additionally engages the top-locking and friction-locking position fixing tool when the tool is inserted. This is advantageous in particular when inserting a tool having a large tool head but a relatively thin or small tool shank, since these tools are no longer loosely accommodated in the tool case due to the larger accommodating opening than the shank. It is basically fixed firmly. This results in a particularly high quality operation when the hand tool is inserted and removed from the toolbox of the invention.

In a further advantageous embodiment of the invention, the insertion opening has a cross-sectional profile with a larger opening cross section than the receiving opening of the insert situated below it. This ensures that the hand tool is inserted into the correct receiving opening in a targeted manner by the insertion plate target. In addition, careless insertion into the surface or penetration into the surface of the insert is avoided. At the same time, the inserts underneath it ensure a positive fit and a friction fit for the hand tool.

In the drawings, the same reference numerals are used for the same or similar components, and the repeated description is omitted for the sake of simplicity.

Figure 1 shows a tool case 1 of the present invention for housing an elongated hand tool. As shown here, the kit 1 of the invention in particular accommodates a kit comprising a socket wrench set 2, a screwdriver 3 and a screw wrench 4. These tools are fixedly disposed in the base body 6 of the tool case 1 in a vertically oriented manner in the direction of the vertical axis 5 of the tool case 1 in the tool case 1 itself. In order to configure the tool case to be uncontaminated, to prevent unacceptable gripping of the tool and to be used variably for transport, the tool case also has a cover 9 with a handle 8 .

In the basic body 6, an insert 9 is provided for the positionally fixed receiving of the tool, which is shown in FIG. The insert 9 of the invention has a plurality of layers 10 and an insert plate 11 for this purpose. In the embodiment variant shown here, the insert 9 has four layers 10a, 10b, 10c, 10d and an insert plate 11. Here, the chronological arrangement from top to bottom, the insert 9 includes an insertion plate 11, an upper layer 10a, a first intermediate layer 10b, a second intermediate layer 10c, and a lower layer 10d. The insert plate 11 here has an insertion opening 12 for insertion or passage through different hand tools. A receiving opening 16 is formed in the elastic layer 10 itself, which is not shown further here. According to the invention, the individual layers 10 are bonded to one another and the lower layer 10d has a bump structure 13 . As an example, a large insertion depth Ev1 of the large extension member V1 and a small insertion depth Ev2 of the small extension member V2 are shown here in FIG. The insertion depth Ev1 passes through the first intermediate layer 10b and the second intermediate layer 10c from the upper layer 10a and ends at the lower layer 10d. The insertion depth of the second elongate member passes from the upper layer 10a through the first intermediate layer 10b and ends at the second intermediate layer 10c.

Fig. 3 again shows a side view of the perspective view of Fig. 2. In this case, it can be clearly seen that the inserts 9 are formed in a layered manner, wherein the partial layer 14 extends perpendicular to the vertical axis 5 of the vertically oriented tool. In particular, it can be seen that the contour of the base body 6 of the tool case 1 is imitation on the left side surface 15 shown here, so that the insert part 9 fills the tool case 1 almost completely and in a form-locking manner in the inserted state.

Figure 4 shows a top view of the insertion plate 11 and the insert 9 located below the insertion plate. It can be clearly seen here that the insertion plate 11 has an insertion opening 12 and the insert 9 has a receiving opening 16 . Here, the cross-sectional area of the receiving opening 16 is slightly smaller than the insertion opening 12 of the insertion plate 11, respectively. Since the insertion plate 1 is harder, the tool can be inserted without abutting against the insertion opening. This results in a form-locking and/or force-locking contact between the tool and the receiving opening 16 of the insert 9 . Thereby, the tool position is fixedly held in the tool case 1 of the present invention.

FIG. 5 shows a plan view of the various layers of the insert 9. Here, the upper layer, the first intermediate layer 10b, and the second intermediate layer 10c are shown. According to the invention, the receiving opening 16 for all the hand tools in the kit is constructed in the first layer 10a. The first intermediate layer 10 b shown in FIG. 5 b has a relatively small number of receiving openings 16 , so that a part of the tool in the bottom region 17 rests in a positively locking manner on the first intermediate layer 10 b , As a result, these tools cannot be slipped further or fall into the tool box 1, more precisely the insert 9.

Correspondingly, the second intermediate layer 10c in turn has fewer receiving openings 16 than the first intermediate layer 10b, so that other tools having a medium insertion depth rest against the second intermediate layer 10c and thus in the toolbox No further insertion or sinking in 1 can be made. In particular, the individual layers 10 can be produced in a particularly low-cost manner by the stamping process and subsequently form the insert 9 by means of a connection, for example by mutual bonding, which has a particularly complicated construction of the receiving opening 16 and A construction that can be individually matched.

FIG. 6 shows a plan view of a further embodiment of the insert 9 . In this case, the receptacle 16 for accommodating at least several hand tools is embodied in such a way that it approximates a cross. An unloading groove 18 is formed at the receiving opening 16 , which prevents the material of the insert 9 from being disintegrated or cracked or deflected in the region surrounding the receiving opening 16 after prolonged use.

FIG. 7 shows a further embodiment variant in which the cross section of at least several receptacle openings 16 is embodied in the shape of an X. Here too, an unloading groove 18 is formed in the edge region, which prevents material fatigue of the insert 9 after prolonged use.

1. . . Toolbox

2. . . Socket wrench set

3. . . screwdriver

4. . . Screw wrench

5. . . Vertical axis

6. . . Matrix

7. . . cover

8. . . handle

9. . . Insert

10. . . Floor

10a. . . level one

10b. . . First intermediate layer

10c. . . Second intermediate layer

10d. . . Lower layer

11. . . Insert board

12. . . Insert

13. . . Bump structure

14. . . Layered

15. . . Left side

16. . . Storage port

17. . . Bottom area

18. . . Unloading slot

Ev1. . . Insertion depth

Ev2. . . Insertion depth

V1. . . Large extension

V2. . . Small extension

Other advantages, features, features and aspects of the present invention constitute the following description. Preferred embodiments are shown in the schematic figures. The drawings are intended to more easily understand the present invention. The figures are as follows:

Figure 1 is a cross-sectional view of the tool case of the present invention;

Figure 2 is a perspective view of an insert having an insert plate of the present invention;

Figure 3 is a side elevational view of the insert of the present invention having an insert plate;

Figure 4 is a plan view of the insert of the present invention;

Figure 5a-c shows the layer of the insert of the invention;

Figure 6 shows an embodiment of an insert having an unloading groove;

Figure 7 shows another embodiment of an insert having an unloading slot.

1. . . Toolbox

2. . . Socket wrench set

3. . . screwdriver

4. . . Screw wrench

5. . . Vertical axis

6. . . Matrix

7. . . cover

8. . . handle

9. . . Insert

10a. . . level one

10b. . . First intermediate layer

10c. . . Second intermediate layer

10d. . . Lower layer

11. . . Insert board

13. . . Bump structure

Ev1. . . Insertion depth

Ev2. . . Insertion depth

V1. . . Large extension

V2. . . Small extension

Claims (11)

A tool case (1) for housing an elongated hand tool, in particular a tool case for accommodating a kit comprising a socket wrench set (2), a screwdriver (3) and a screw wrench (4), wherein The tool case (1) has a base body (6) and a cover (7), characterized in that the hand tool is arranged vertically in the base body (6), and an insert made of an elastic material is arranged in the base body (6). a piece (9) for receiving in a fixed position, a receiving opening (16) for accommodating the respective hand tools is formed in the insert (9), preferably a cross section of each receiving opening (16) is separately configured for each hand tool The insert (9) is constructed in multiple layers, the layer (14) of each layer (10) extends perpendicular to the vertical structure of the tool, and the respective receiving openings (16) are only layered according to the corresponding insertion depth of the hand tool structure. A tool case (1) according to claim 1, characterized in that the insert (9) is made of a foamed material. Toolbox (1) according to claim 1 or 2, characterized in that the insert (9) completely fills the base body (6). A tool case (1) according to claim 1, characterized in that the receiving opening (16) has at least one unloading groove (18) on the edge side. The tool case (1) of claim 1 is characterized in that the individual layers (10) are bonded to each other. Toolbox (1) according to claim 1 or 5, characterized in that the lower layer (10d) in contact with the bottom of the base body (6) has a corrugated structure, preferably a bump structure (13) and in particular a surface structure of an acoustic foam . A toolbox (1) according to any one of claims 1, 2, 4 and 5, characterized in An insert plate (11) is provided on the upper end of the insert (9), the insert plate (11) being connected to the insert (9) and/or to the base body (6). Toolbox (1) according to claim 7, characterized in that the inserting plate (11) is made of a harder material than the insert (9), preferably of plastic, in particular of a metallic material and preferably of a light metal . The tool case (1) of claim 7, characterized in that the insertion plate (11) has a plurality of insertion openings (12), and the cross-sectional shape of each insertion opening (12) matches the cross-section of each tool to be inserted . A tool case (1) according to claim 7, characterized in that the insertion plate (11) has a locking element for fixing the position of the inserted hand tool in at least one insertion opening (12). Toolbox (1) according to claim 9, characterized in that the insertion opening (12) has a cross section with a larger opening cross section than the receiving opening (16) of the insert (9) located thereunder shape.