阅读说明：本技术 壳体 (Shell body ) 是由 J·赛茨 M·厄斯特勒 T·哈格 于 2021-05-07 设计创作，主要内容包括：本发明涉及一种用于手持式工作器械的壳体,其包括两个壳体壳,即第一壳体壳和第二壳体壳。第一壳体壳具有第一外壁且第二壳体壳具有第二外壁,它们沿分隔平面至少部分地彼此贴靠。第一壳体壳具有至少一个第一肋,其沿横向方向横向于、尤其垂直于分隔平面延伸。第一肋伸出超过分隔平面到第二壳体壳中。第一肋具有沿横向方向从分隔平面中的第一测量点出发直到第一肋的面向第二壳体壳的第一端部测量的第一肋高。第二壳体壳具有沿横向方向从分隔平面中的相同的第一测量点出发直到第二壳体壳的面向第一壳体壳的第二内侧测量的第二壳高。至少一个第一测量点存在于分隔平面中,在其处第一肋高为第二壳高的至少30%、尤其至少45%、优选地至少60%。(The invention relates to a housing for a hand-held power tool, comprising two housing shells, namely a first housing shell and a second housing shell. The first housing shell has a first outer wall and the second housing shell has a second outer wall, which lie at least partially against one another along a separating plane. The first housing shell has at least one first rib which extends transversely, in particular perpendicularly, to the separating plane in the transverse direction. The first ribs project beyond the partition plane into the second housing shell. The first rib has a first rib height measured in the transverse direction from a first measurement point in the partition plane up to a first end of the first rib facing the second housing shell. The second housing shell has a second shell height measured in the transverse direction starting from the same first measuring point in the separating plane up to a second inner side of the second housing shell facing the first housing shell. At least one first measuring point is present in the separating plane, at which the first rib height is at least 30%, in particular at least 45%, preferably at least 60%, of the second shell height.)

1. Housing for a handheld work apparatus (2), comprising two housing shells (10,20), namely a first housing shell (10) and a second housing shell (20), wherein the first housing shell (10) has a first outer wall (11), wherein the second housing shell (20) has a second outer wall (21), wherein the first outer wall (11) and the second outer wall (21) lie at least partially against one another along a partition plane (3), wherein the first housing shell (10) has at least one first rib (13,33,53,54,55), wherein the first rib (13,33,53,54,55) extends in a transverse direction (50) transversely, in particular perpendicularly, to the partition plane (3),

characterized in that the first ribs (13,33,53,54,55) project beyond the partition plane (3) into the second housing shell (20), the first ribs (13,33,53,54,55) having a first rib height (r1a, r1b) measured in the transverse direction (50) starting from a first measuring point (M1a, M1b) in the partition plane (3) up to a first end (15) of the first ribs (13,33,53,54,55) facing the second housing shell (20), the second housing shell (20) having a second rib height (r1a, r1b) measured in the transverse direction (50) starting from the same first measuring point (M1a, M1b) in the partition plane (3) up to a second height (M2 h2, 357 h2, a) of the second housing shell (20) facing a second inner side (28) of the first housing shell (10), and at least one first rib height (M1, a) being present in the partition plane (3), at which the first rib height (r1a, r1b) is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the second shell height (h2a, h2 b).

2. Housing according to claim 1, characterized in that the second housing shell (20) has a second rib (23,43,63), the second rib (23,43,63) extending from a second outer wall (21) of the second housing shell (20) in the transverse direction (50) towards the first housing shell (10), the second rib (23,43,63) projecting beyond the partition plane (3), and the second rib (23,43,63) projecting into the first housing shell (10).

3. Housing according to claim 1, characterized in that the second ribs (23,43,63) have a second rib height (r2a, r2b) measured in a transverse direction (50) from a second measuring point (M2a, M2b) in the partition plane (3) up to a second end (25) of the second rib (23,43,63) facing the first housing shell (10), the first housing shell (10) has a first shell height (h1a, h1b) measured in a transverse direction (50) from the same second measuring point (M2a, M2b) of the partition plane (3) up to a first inner side (18) of the first housing shell (10) facing the second housing shell (20), and at least one second measuring point (M2a, M2b) is present in the partition plane (3), at least one second measuring point (M2) being present at the second rib height (r 21) of the partition plane (1), at least one second measuring point (M2) being present at 3615 h 3, In particular at least 30%, in particular at least 45%, preferably at least 60%.

4. The housing according to claim 2, characterized in that the first rib (13,33,53,54,55) has a first maximum wall thickness (mw1) measured in a wall thickness direction (49) perpendicular to the transverse direction (50), and a rib spacing (a) measured in the wall thickness direction (49) between the first rib (13,33,53,54,55) and the second rib (23,43,64) is less than the first maximum wall thickness (mw1), in particular less than two thirds of the first maximum wall thickness (mw 1).

5. The housing according to claim 4, characterized in that the rib spacing (a) is at least 1%, in particular at least 5%, of the first maximum wall thickness (mw 1).

6. The housing according to claim 1, characterized in that the first rib (13,33,53,54,55) has at least one first region (16) which is arranged relative to the second outer wall (21) with a first spacing (d1) measured perpendicular to the second outer wall (21) in the separation plane (3).

7. The housing according to claim 1, characterized in that the first rib (13,33,53,54,55) is fixed at the first outer wall (11).

8. The housing according to claim 7, characterized in that the first rib (13,33,53,54,55) is integrally formed with the first outer wall (11) material.

9. The housing according to claim 1, characterized in that the first ribs (13,33,53,54,55) have a first shell spacing (s1) measured in the transverse direction (50) with respect to the second housing shell (20), and the first shell spacing (s1) is greater than 40% of a first maximum wall thickness (mw1) of the first ribs (13,33,53,54, 55).

10. The housing according to claim 1, characterized in that the first housing shell (10) has at least two first ribs (13,33) and that the at least two first ribs (13,33) have a point of intersection (4) seen in the transverse direction (50).

11. The housing according to claim 10, characterized in that the intersection point (4) has a first intersection distance (k1) with respect to the first housing wall (11) as seen in a transverse direction (50), and the at least two first ribs (13,33) extend from the intersection point (4) as far as the first housing wall (11).

12. The housing according to claim 1, characterized in that the first housing shell (10) has a plurality of first ribs (13,33,53,54,55), the second housing shell (20) has a plurality of second ribs (23,43,63), the plurality of first ribs (13,33,53,54,55) and the plurality of second ribs (23,43,63) have a total length (G) measured in the partition plane (3) in total, the plurality of first ribs (13,33,53,54,55) and the plurality of second ribs (23,43,63) are limited in the partition plane (3) by an imaginary enclosed polygon (P) which encloses a polygon area (a), and the quotient of total length (G) and polygon area (P) is at least 0.2mm^-1。

13. The housing according to claim 1, characterized in that the first rib (13) has a first recess (17), into which a second reinforcing rib (27) of the second housing shell (20) projects in a transverse direction (50), such that the second reinforcing rib (27) crosses the recess (17) of the first rib (13) in a direction perpendicular to the transverse direction (50).

14. The housing according to claim 1, characterized in that the first housing shell (10) and the second housing shell (20) are injection-molded parts.

15. The housing according to claim 1, characterized in that the housing (1) is a handle housing, and an operating element (5) for operating the working device (2) is arranged at the handle housing.

16. The housing according to claim 1, characterized in that the first rib (13,33,53,54,55) cuts the separation plane (3) over a first total length (l1), and the first rib (13,33,53,54,55) has a first measuring point over at least half of the first total length (l1), at which the first rib height (r1a, r1b) is at least 30%, in particular at least 45%, preferably at least 60%, of the associated second shell height (h2a, h2 b).

Technical Field

The invention relates to a housing for a handheld work apparatus.

Background

A hand-held power tool with two housing halves is known from DE 102017101992 a 1. One housing half has ribs at its outer wall which are brought into grooves in the outer wall of the other housing half by means of a press fit. Thereby creating a separation barrier between the two housing halves. Such shells can be damaged especially when dropped from hip height.

Disclosure of Invention

The invention is based on the object of creating a housing which is of stable design.

This object is achieved by a housing for a handheld work apparatus, comprising two housing shells, namely a first housing shell and a second housing shell, wherein the first housing shell has a first outer wall, wherein the second housing shell has a second outer wall, wherein the first outer wall and the second outer wall lie at least partially against one another along a partition plane, wherein the first housing shell has at least one first rib, wherein the first rib extends transversely, in particular perpendicularly, to the partition plane, wherein the first rib projects beyond the partition plane into the second housing shell, wherein the first rib has a first rib height measured in the transverse direction from a first measurement point in the partition plane up to a first end of the first rib facing the second housing shell, wherein the second housing shell has a second shell height measured in the transverse direction from the same first measurement point in the partition plane up to a second inner side of the second housing shell facing the first housing shell, and wherein at least one first measurement point is present in the separation plane at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the second shell height.

According to the invention, it is provided that the first rib projects beyond the separating plane into the second housing shell. In the separating plane, a plurality of first measuring points exist, from which the second shell height can be determined. According to the invention, at least one first measuring point is present in the separating plane, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the second shell. This gives the possibility that the first rib is supported at the contour of the second housing shell and can thus be responsible for a greater breaking strength of the housing.

It can also be provided that a plurality of first measurement points are present in the separating plane, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the second shell.

Expediently, the second housing shell has a second rib which extends in the transverse direction and projects beyond the partition plane into the first housing shell. The second rib has a second rib height measured in the transverse direction from a second measurement point in the partition plane up to a second end of the second rib facing the first housing shell. The first housing shell has a first shell height measured in the transverse direction starting from the same second measuring point of the separating plane up to a first inner side of the first housing shell facing the second housing shell. Advantageously, at least one second measuring point is present in the separating plane, at which the second rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the first shell. The second ribs can thus be supported at the contour of the first housing shell or at the first ribs of the first housing shell and thus contribute to a greater breaking strength of the housing.

The first rib has a first maximum wall thickness measured in the wall thickness direction perpendicular to the transverse direction. Advantageously, the rib spacing between the first rib and the second rib, measured in the wall thickness direction, is less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness. In a variant of the housing shell, the first rib and the second rib may be supported relative to each other. The deformation of the housing shell can occur in the event of a crash of the housing after dropping from a certain height. By the smaller spacing of the ribs from one another, the breaking strength of the housing is increased. The stability and the loadability of the housing as a whole are improved. The housing is reinforced in the region in which the rib spacing is less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness. The reinforcement is achieved by the co-action of the first and second ribs. This offers the advantage that the structure of the individual housing shells can be designed more finely than with thicker ribs. In addition, a coarse mesh design of the rib structure of the individual housing shells can be realized overall with the same degree of stiffening of the housing. In the case of a housing made of plastic by a demolding method, the shape can thus be designed and manufactured more simply.

Thicker ribs in only one housing shell also result in greater strengthening. In housings made of plastic, thicker ribs have the additional disadvantage that they can produce visually unattractive collapse points (einfallstellelle) opposite the rib base (rippengrend) on the outside of the primary housing wall. This can be avoided in the case of a reinforcement of the housing by the first and second ribs having a rib spacing of less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness. An attractive visual design results in the case of a simultaneously high stability and strength of the housing.

Furthermore, the reinforcement can be achieved in a simple manner by a rib spacing of less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness, in particular in comparison with a separate reinforcing component introduced between the two housing shells.

Advantageously, the rib spacing is at least 1%, in particular at least 5%, of the first maximum wall thickness. This ensures that, in the event of an external deformation of the housing, for example during a crash, the first rib and the second rib bear against one another and energy can be transmitted from one rib to the other rib.

Suitably, the rib spacing is substantially constant.

Advantageously, the wall thickness of the first ribs measured in the wall thickness direction differs in the transverse direction by less than 10% of the first maximum wall thickness.

In particular, the first ribs extend on both sides of the partition plane.

In an advantageous development of the invention, it is provided that the first rib has at least one first region which is arranged at a first distance from the second outer wall, measured perpendicular to the second outer wall in the separating plane. This also results in an increase in the stability of the housing in the region spaced apart from the outer wall.

Suitably, the first rib is fixed at the first outer wall. In particular, the first rib is fastened with its first rib base in the transverse direction at the first outer wall. Whereby forces can be transmitted between the first outer wall and the first rib.

In particular, the first rib is formed integrally with the first outer wall material. Thereby establishing a stable connection between the first rib and the first outer wall.

In an advantageous development of the invention, it is provided that the first rib has a first shell distance, measured in the transverse direction, relative to the second housing shell, and that the first shell distance is greater than 40% of the first maximum wall thickness of the first rib. The housing can thus be designed such that the first rib and the second rib overlap over a larger area with respect to the transverse direction. The support of the first rib is thereby achieved in the vicinity of the second rib base of the second rib, whereby forces can be well absorbed and further conducted.

In an advantageous development of the invention, the first housing shell has at least two first ribs. Suitably, at least two first ribs have a crossing point, seen in the transverse direction. The first ribs, which act in a crossing manner, create a stable structure, which increases the stability of the housing. In particular, the intersection point has a first intersection distance, viewed in the transverse direction, with respect to the first housing wall. Expediently, at least two first ribs extend, as seen in the transverse direction, from the intersection point as far as the first housing wall. As a result, forces can be transmitted between the intersection point and the first housing wall. The at least two first ribs may cooperate in the case of absorption of forces via the intersection points. Thereby, the force is evenly distributed and can be absorbed by the housing more easily without damage.

Suitably, the first housing shell has a plurality of first ribs. In particular, the second housing shell has a plurality of second ribs.

The first plurality of ribs and the second plurality of ribs have an aggregate length measured in the separation plane. The first plurality of ribs and the second plurality of ribs are bounded in the separation plane by an encased polygon. Corner points of the polygon are at end points of the first and second ribs in the separation plane. The polygon has a polygon area. In an advantageous development of the invention, it is provided that the quotient of the total length of the first ribs and the second ribs and the polygonal area is at least 0.2mm^-1. This results in a sufficiently large rib density for a high stability of the housing.

Suitably, the first rib has a first notch. In particular, the second housing shell has second reinforcing ribs. The second reinforcing rib extends from the second housing wall in a transverse direction in a direction toward the first housing shell. In particular, the second reinforcing rib extends only on one side of the partition plane. It can also be provided that the second reinforcing rib is a second rib of the second housing shell and projects into the first housing shell via the partition plane. Advantageously, the second reinforcing rib projects into the first recess of the first rib in the transverse direction. In particular, the second reinforcing rib crosses the notch of the first rib in a direction perpendicular to the transverse direction. In the deformation of the housing, the first rib of the first housing shell and the second reinforcing rib of the second housing shell may support each other, and force may be transmitted therebetween. This also improves stability.

In an advantageous development of the invention, it is provided that at least a part of the first ribs, viewed in the transverse direction, form a closed structure which loops around the transverse direction. The plurality of first ribs of the second portion of the plurality of first ribs may further conduct force to each other through the closed configuration. The stability of the housing is thereby increased.

Suitably, the first housing shell and the second housing shell are injection moulded parts.

In particular, the housing is a handle housing. Expediently, an operating element for operating the working device is arranged on the handle housing.

In an advantageous development of the invention, it is provided that the first rib cuts the separating plane over the total first length and that the first rib has a first measuring point over at least half of the total first length, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, higher than the associated second shell. The first rib is thereby supported in the second housing shell in the partition plane over a greater part of its first length in the deformation of the housing during a collision. In particular, it can be provided that the rib spacing between the first ribs of the first housing shell and the second ribs of the second housing shell is less than the first maximum wall thickness of the first ribs, in particular less than two thirds of the first maximum wall thickness of the first ribs, over at least half of the total first length of the first ribs. Furthermore, it can be provided that the second rib cuts the separating plane over the integrated second length and that the second rib has a first measuring point over at least half of the total second length, at which the second rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the associated second shell.

Drawings

Embodiments of the invention are subsequently explained on the basis of the figures. Wherein:

figure 1 shows a schematic side view of a work apparatus with a housing,

figure 2 shows a perspective view of the housing,

figure 3 shows a perspective view of the first housing shell of the housing according to figure 2 with a view towards the inside of the first housing shell,

figure 4 shows a perspective view of the second housing shell of the housing according to figure 2 with a view towards the inside of the second housing shell,

figure 5 shows a side view in the transverse direction towards the inner side of the first housing shell from figure 3,

figure 6 shows a side view in the transverse direction towards the inner side of the second housing shell from figure 4,

figure 7 shows a side view of the first housing shell from figure 3 perpendicular to the transverse direction,

figure 8 shows a side view of the second housing shell from figure 4 perpendicular to the transverse direction,

figure 9 shows a side view of the first housing shell from figure 3 perpendicular to the transverse direction,

figure 10 shows a side view of the second housing shell from figure 4 perpendicular to the transverse direction,

figure 11 shows a side view perpendicular to the transverse direction towards the housing from figure 2,

figure 12 shows a section along the section plane XII-XII from figure 11,

figure 13 shows a cross section along the cross-sectional plane XIII-XIII from figure 12,

figure 14 shows a detail from the cross-sectional view of figure 13,

figure 15 shows a section along the section plane XV-XV from figure 12,

figure 16 shows a cross section along the section plane XVI-XVI from figure 12,

figure 17 shows a cross section along the section plane XVII-XVII from figure 11,

FIG. 18 shows a detail from the cross-sectional view of FIG. 17, and

fig. 19 shows a detail from fig. 18 with the markings of the first rib and the second rib.

Detailed Description

Fig. 1 shows a handheld work apparatus 2. The handheld work apparatus 2 is an air suction blower. The work apparatus may, however, also be a motor chain saw, brush cutter, cutter or the like.

The work apparatus 2 has a housing 1. In an embodiment, the housing 1 is a handle housing. The housing may be any other type of housing such as a motor housing or the like.

As is shown in fig. 2, the work apparatus 2 has an operating element 5. In the exemplary embodiment, the operating element 5 is a throttle. By means of the operating element 5, a non-represented motor of the work apparatus 2 can be operated. The operating element 5 projects from the housing 1.

The housing 1 has a first housing shell 10 and a second housing shell 20. The operating element 5 is arranged between the first housing shell 10 and the second housing shell 20.

The first case 10 and the second case 20 are respectively manufactured in a mold release method. The first housing shell 10 and the second housing shell 20 are made of plastic. In the embodiment, the first case 10 and the second case 20 are respectively manufactured in an injection casting method. The first housing shell 10 and the second housing shell 20 are injection molded parts. The transverse direction 50 is drawn in fig. 2. In the assembled state of the housing 1, the first housing shell 10 and the second housing shell 20 approach one another in the transverse direction 50, so that they lie against one another. The transverse directions 50 are directed in two opposite directions. The transverse direction 50 corresponds to the demolding direction in the case of demolding of the first housing shell 10. The transverse direction 50 corresponds to the demolding direction in the case of demolding of the second housing shell 20. The direction along which the shape for the respective housing shell 10,20 is removed at the time of demolding is marked with the demolding direction. By this is meant the normal direction of demolding. The removal direction of the slider for forming the undercut is not referred to as the conceptual demolding direction.

Fig. 3 shows the first housing shell 10 in a perspective view. The first housing shell 10 has a first inner side 18 which, in the assembled state of the housing 1, faces a second housing shell 20. The first inner side 18 is at least partially bounded by the first outer wall 11. The first outer wall 11 forms part of the outside of the housing 1. The first outer wall 11 has a first end side 12. In the assembled state of the housing 1, the first end side 12 faces the second housing shell 20. The first housing shell 10 rests with its first end side 12 against the second housing shell 20. The first end side 12 extends in the exemplary embodiment at least partially perpendicularly to the transverse direction 50.

Fig. 4 shows the second housing shell 20. The second housing shell 20 has a second inner side 28 which, in the assembled state of the housing 1, faces the first housing shell 10. The second inner side 28 is at least partially bounded by the second outer wall 21. The second outer wall 21 forms part of the outside of the housing 1. The second outer wall 21 has a second end side 22. In the assembled state of the housing 1, the second end side 22 faces the first housing shell 10. The second housing shell 20 rests with its second end face 22 on the first housing shell 10. The second end side 22 extends in the exemplary embodiment at least partially perpendicularly to the transverse direction 50.

The first outer wall 11 and the second outer wall 21 form the outside of the housing 1. The struts in the interior of the housing 1 are an exception to the conceptual outer wall.

The housing shells 10 and 20 abutting against one another are represented in particular in fig. 13 to 15. As can be seen from the overview of fig. 3,4 and 13, the first outer wall 11 of the first housing shell 10 and the second outer wall 21 of the second housing shell 20 at least partially abut against each other along the separating plane 3. In the partition plane 3, the first housing shell 10 and the second housing shell 20 touch. The separating plane 3 extends transversely to the transverse direction 50. In the exemplary embodiment, the separating plane 3 extends perpendicularly to the transverse direction 50. In the partition plane 3, the first housing shell 10 and the second housing shell 20 touch in the transverse direction 50.

As is apparent from fig. 14, the first end side 12 of the first outer wall 11 has a first projection 19. The second end side 22 of the second outer wall 21 has a second projection 29. The first projection 19 projects beyond a first end base 51 of the first end side 12 in the transverse direction 50 in the direction towards the second housing shell 20 (fig. 14). The second projection 29 projects beyond a second end base (stirling) 61 of the second end side 22 in the direction towards the first housing shell 10 in the transverse direction 50. The second projection 29 is arranged closer at the outer side of the housing 1 than the first projection 19. The outside of the second projection 29 is a portion of the outside of the housing 1. The first protrusion 19 corresponds to the second protrusion 29. The second tab 29 and the first tab 19 overlap with respect to the transverse direction 50. The second projection 29 at least partially surrounds the outside of the first projection 19. In the assembled condition of the housing 1, the first housing shell 10 and the second housing shell 20 are positioned relative to each other by means of the first projection 19 and the second projection 29. It can be provided that the outer side of the first projection 19 abuts against the inner side of the second projection 29.

In the transverse direction 50, the first projection 19 is bounded by a first front face 52. The first front face 52 faces the second housing shell 20. The first front face 52 abuts against the second end base 61 of the second end side 22 of the second outer wall 21. The first front face 52 and the second end 61 abut against each other in the partition plane 3.

The second projection 29 projects beyond the partition plane 3 in the transverse direction 50 in a direction towards the first housing shell 10. The second projection 29 is bounded in the transverse direction 50 by a second front face 62. A seam 31 is formed between the second front face 62 of the second projection 29 and the first end base 51 of the first end side 12. The seam 31 is visible at the outside of the housing 1. The bottom of the seam 31 is formed by the first projection 19. The seam 31 extends between the first housing shell 10 and the second housing shell 20. In the exemplary embodiment, the seam 31 runs outside the separating plane 3.

As can be seen from fig. 2 to 4, the first outer wall 11 and the second outer wall 21 bound a hollow space in the interior of the housing 1. In the hollow space, a first rib 13 is arranged in the first housing shell 10 (fig. 3). The first rib 13 extends from the first outer wall 11 of the first housing shell 10 in the transverse direction 50 in the direction of the second housing shell 20. As is also apparent from fig. 7 and 9, the first ribs 13 project beyond the separating plane 3 in the transverse direction 50. The first ribs 13 project into the second housing shell 20. The first housing shell 10 has a plurality of first ribs 13,33,53,54,55, as can be seen in fig. 3. All of the first ribs 13,33,53,54 and 55 project beyond the partition plane 3. The first ribs 13,33,53,54,55 are fixed at the first outer wall 11. The first rib 13 is fastened with its first rib base 14 to the first outer wall 11 (fig. 13). The first ribs 13,33,53,54,55 are in the exemplary embodiment formed integrally with the first outer wall 11. The first ribs 13,33,53,54,55 are produced together with the first outer wall 11 by injection molding. The first ribs 13,33,53,54,55 extend on both sides of the partition plane 3.

The first ribs 33,54 and 55 together form a structure which loops closed around the transverse direction 50 (fig. 3).

On the inner side of the first outer wall 11, a first reinforcing rib 56 is arranged. The first reinforcing rib 56 is fixed at the first outer wall 11. The first reinforcing rib 56 extends from the first outer wall 11 in the transverse direction 50 in a direction toward the second housing shell 20. The first reinforcing ribs 56 are arranged only on the side of the partition plane 3. The first reinforcing rib 56 advantageously connects the first rib 13 with the first rib 53. The first ribs 13 and 53 in the exemplary embodiment together with the first reinforcing rib 56 form a closed structure which surrounds the transverse direction 50.

Fig. 4 shows the second housing shell 20 with a view towards its inside. The second housing shell 20 has second ribs 23. The second ribs 23 extend from the second outer wall 21 of the second housing shell 20 in the transverse direction 50 in the direction of the first housing shell 10. As is also apparent in fig. 8 and 10, the second ribs 23 project beyond the separating plane 3 in the transverse direction 50. The second ribs 23 project into the first housing shell 10. The second ribs 23 are arranged in the hollow space (fig. 2 to 4). The first outer wall 11 and the second outer wall 21 limit a hollow space in the interior of the housing 1. Not only the first rib 13 but also the second rib 23 is arranged in the hollow space. The second housing shell 20 has a plurality of second ribs 23,43,63 (fig. 4). All of the second ribs 23,43 and 63 project beyond the partition plane 3. The second ribs 23,43,63 are fixed at the second outer wall 21. The second rib 23 is fastened with its second rib base 24 to the second outer wall 21 (fig. 15). The second ribs 23,43,63 are in the exemplary embodiment integrally formed with the second outer wall 21. The second ribs 23,43,63 are produced together with the second outer wall 21 in a spray casting process.

As appears from fig. 4, a second reinforcing rib 27 is arranged on the inner side of the second outer wall 21. The second reinforcing rib 27 is fixed at the second outer wall 21. The second reinforcing ribs 27 extend from the second outer wall 21 in the transverse direction 50 in the direction toward the first housing shell 10. The second reinforcing ribs 27 are arranged only on one side of the partition plane 3. The second reinforcing rib 27 advantageously connects the second rib 23 with the second rib 43. The second ribs 23 and 43 form in the exemplary embodiment together with the second reinforcing rib 27 a closed structure which surrounds the transverse direction 50.

Fig. 5 shows a side view in the transverse direction 50 towards the inside of the first housing shell 10. Fig. 6 shows a side view in the transverse direction 50 towards the inside of the second housing shell 20.

Fig. 7 to 10 show side views of the first housing shell 10 and the second housing shell 20 in a direction perpendicular to the transverse direction 50. Fig. 7 and 9 show in particular how the first ribs 13 project beyond the partition plane 3. Fig. 8 and 10 show in particular how the second ribs 23 project beyond the partition plane 3.

Fig. 11 shows the housing 1 in the assembled state in a side view in a direction perpendicular to the transverse direction 50. A seam 31 is formed between the first housing shell 10 and the second housing shell 20.

Fig. 12 shows a section through the housing 1 along the section plane XII-XII from fig. 11. Fig. 12 shows the first inner side 18 of the first housing wall 11 of the first housing shell 10. The second ribs 23 of the second housing shell 20 project into the first housing shell 10. The first ribs 13 of the first housing shell 10 and the second ribs 23 of the second housing shell 20 are arranged directly side by side. The first ribs 13 of the first housing shell 10 and the second ribs 23 of the second housing shell 20 run parallel to one another in a sectional plane.

Fig. 13 shows a section through the housing 1 along a section plane XIII-XIII from fig. 12. The cross section extends through the first rib 13 of the first housing shell 10. The transition between the first rib 13 and the first outer wall 11 is drawn in dashed lines. The first rib 13 has a first end 15. The first end 15 faces the second housing shell 20. The first end 15 faces the second inner side 28 of the second housing shell 20. The first end portion 15 is an end side of the first rib 13. The first end 15 is an edge of the first rib 13. The first end 15 is directed in the transverse direction 50.

The first rib 13 has a first rib height r1a, r1 b. The first rib heights r1a, r1b are measured from the partition plane 3 up to the first end 15 of the first rib 13. The first rib heights r1a, r1b are measured in the transverse direction 50. The first rib heights r1a, r1b are measured perpendicular to the separation plane 3. The first rib height r1a is measured from a first measuring point M1 a. The first rib height r1b is measured from a first measuring point M1 b. The first measuring points M1a, M1b are located in the separating plane 3. The first measuring points M1a, M1b are in the region of the separating plane 3 cut by the first rib 13. The first measurement point M1a is spaced apart from the first measurement point M1 b. In an embodiment, the first rib height r1a is greater than the first rib height r1 b.

The second housing shell 20 has a second shell height h2a, h2 b. The second shell heights h2a, h2b are measured from the partition plane 3 up to the second inner side 28 of the second housing shell 20. The second inner side 28 of the second housing shell 20 corresponds to the inner side of the second outer wall 21 of the second housing shell 20. The second shell heights h2a, h2b are measured in the transverse direction 50. The second shell heights h2a, h2b are measured perpendicularly to the partition plane 3. The second shell height h2a is measured from the first measuring point M1 a. The second shell height h2b is measured from the first measuring point M1 b. The second shell height h2a is measured from the same first measuring point M1a as the first rib height r1 a. The second shell height h2b is measured from the same first measuring point M1b as the first rib height r1 b. In an embodiment, the second shell height h2a is greater than the second shell height h2 b.

In the separating plane 3, a plurality of first measuring points are present, from which a first rib height and a second shell height can be determined. At least one first measuring point M1a, M1b is present in the separating plane 3, at which the first rib height r1a, r1b is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the second shell height h2a, h2 b. In an embodiment, the first rib height r1a is at least 60% of the second shell height h2 b. The first rib height r1b is at least 60% of the second shell height h2 b.

The first ribs 13 cut the separation plane 3 over an integrated first length l 1. The first rib 13 has a first measuring point over at least half of the first integrated length l1, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the associated second shell. In an embodiment, the first rib 13 has a first measurement point over at least 90% of the integrated first length l1, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the associated second shell height. It can also be provided that the first rib 13 has a first measuring point at the fully integrated first length l1, at which the first rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, higher than the associated second shell height.

Fig. 15 shows a section through the housing 1 along the section plane XV-XV from fig. 12. The cross section extends through the second rib 23 of the second housing shell 20. The transition between the second rib 23 and the second outer wall 21 is drawn with a dashed line. The second rib 23 has a second end 25. The second end 25 faces the first housing shell 10. The second end 25 faces the first inner side 18 of the first housing shell 10. The second end 25 is an end side of the second rib 23. The second end 25 is an edge of the second rib 23. The second end 25 is directed in the transverse direction 50.

The second rib 23 has a second rib height r2a, r2 b. The second rib height r2a, r2b is measured from the partition plane 3 up to the second end 25 of the second rib 23. The second rib heights r2a, r2b are measured in the transverse direction 50. The second rib heights r2a, r2b are measured perpendicular to the separation plane 3. The second rib height r2a is measured from the second measuring point M2 a. The second rib height r2b is measured from the second measuring point M2 b. The second measuring point M2a, M2b is located in the separating plane 3. The second measuring point M2a, M2b is in the region of the separating plane 3 cut by the second rib 23. The second measurement point M2a is spaced from the second measurement point M2 b. In an embodiment, the second rib height r2a is greater than the second rib height r2 b.

The first housing shell 10 has a first shell height h1a, h1 b. The first shell heights h1a, h1b are measured from the partition plane 3 up to the first inner side 18 of the first housing shell 10. The first inner side 18 of the first housing shell 10 corresponds to the inner side of the first outer wall 11 of the first housing shell 10. The first shell heights h1a, h1b are measured in the transverse direction 50. The first shell heights h1a, h1b are measured perpendicular to the partition plane 3. The first shell height h1a is measured from the second measuring point M2 a. The first shell height h1b is measured from the second measuring point M2 b. The first shell height h1a is measured from a second measuring point M2a, which is identical to the first rib height r1 a. The second shell height h2b is measured from a second measuring point M2b, which is identical to the second rib height r2 b. In an embodiment, the first shell height h1a is greater than the first shell height h1 b.

In the separating plane 3, a plurality of second measuring points are present, from which the second rib height and the first shell height can be determined. At least one second measuring point M2a, M2b is present in the separating plane 3, at which the second rib height r2a, r2b is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the first shell height h1a, h1 b. In an embodiment, the second rib height r2a is at least 60% of the first shell height h1 a. The second rib height r2b is at least 60% of the first shell height h1 b.

The second rib 23 cuts the separation plane 3 over an integrated second length l 2. The second rib 23 has a second measuring point over at least half of the integrated second length l2, at which the second rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the height of the associated first shell. In an embodiment, the second rib 23 has a second measurement point over at least 90% of the integrated second length l2, at which the second rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, of the associated first shell height. It can also be provided that the second rib 23 has a second measurement point at the fully integrated second length l2, at which the second rib height is at least 15%, in particular at least 30%, in particular at least 45%, preferably at least 60%, higher than the associated first shell.

In an exemplary embodiment, the first housing shell 10 and the second housing shell 20 touch only in a single plane with respect to the transverse direction 50. The position of the separation plane 3 is unambiguously determined. If the first housing shell 10 and the second housing shell 20 should have touching points in more than one plane in the lateral direction, the location of the separation plane may be determined such that the separation plane is perpendicular to the demolding direction and the first area of the first outer wall is the same size as the second area of the second outer wall. The first area is the area of a part of the outer side of the first outer wall, which projects beyond the partition plane to be determined in the direction towards the second outer wall and touches the second outer wall. The second area is the area of a part of the outside of the second outer wall, which projects beyond the partition plane to be determined in the direction towards the first outer wall and touches the first outer wall.

Fig. 16 shows a cross section along the section plane XVI-XVI from fig. 12. The sectional plane extends perpendicularly to the partition plane 3 through the first rib 13 and through the second rib 23. The cross-sectional plane extends through the first measurement point M1b presented in fig. 13 and through the second measurement point M2b presented in fig. 15. Accordingly, the first housing shell 10 has a first shell height h1b in the sectional plane according to fig. 16. The second housing shell 20 has a second shell height h2 b. The sum of the first shell height h1b and the second shell height h2b gives the hollow space height h of the housing 1. The hollow space height h is measured in the transverse direction 50 between the first inner side 18 of the first housing shell 10 and the second inner side 28 of the second housing shell 20 at the height of the first measuring point M1 b. The hollow space height h is measured from the first groove base (nutground) 14 of the first rib 13 up to the second inner side 28 of the second housing shell 20.

The first rib 13 and the second rib 23 overlap in an overlap region 32 with respect to the transverse direction 50. The overlap region 32 has an overlap length l measured in the transverse direction. The overlap length l corresponds to the sum of the first rib height r1b and the second rib height r2 b. The overlap length l is at least 20%, in particular at least 30%, in particular at least 50%, in particular at least 60%, preferably at least 70% of the height h of the hollow space. This similarly applies to the overlap lengths at the first measurement point M1a, at the second measurement point M2a and at the second measurement point M2 b.

The first rib 13 has a first maximum wall thickness mw 1. The first maximum wall thickness mw1 is measured in the wall thickness direction 49. The wall thickness direction 49 extends perpendicular to the transverse direction 50. The wall thickness direction 49 extends parallel to the partition plane 3.

The second ribs 23 are arranged at a rib spacing a relative to the first ribs 13. The rib spacing a is measured in the wall thickness direction 49. In an embodiment, the rib spacing a is constant with respect to the transverse direction 50. The rib spacing a is constant independently of the spacing from the partition plane 3. The rib spacing is less than the first maximum wall thickness mw1, in particular less than two thirds of the first maximum wall thickness mw 1.

The second rib 23 has a second maximum wall thickness mw2 measured in the wall thickness direction 49. The second maximum wall thickness mw2 is in embodiments the same size as the first maximum wall thickness mw 1. However, it is also possible to provide the first maximum wall thickness mw1 and the second maximum wall thickness mw2 with different sizes.

The rib spacing a is at least 10%, in particular at least 20%, of the first maximum wall thickness mw 1. It is also possible to provide that the rib spacing a is at least 1%, in particular at least 5%, of the first maximum wall thickness mw 1.

The first ribs 13 have a first shell spacing s1 relative to the second housing shell 20. The first shell spacing s1 is measured in the transverse direction 50. The first shell spacing s1 is measured from the first end 15 of the first rib 13 as far as the second inner side 28 of the second housing wall 21. The first shell spacing s1 is greater than 40% of the first maximum wall thickness mw1 of the first rib 13. This is also presented in fig. 13.

The second ribs 23 have a second shell spacing s2 (fig. 16) relative to the first housing shell 10. The second shell spacing s2 is measured in the transverse direction 50. The second shell spacing s2 is measured from the first end 25 of the second rib 23 as far as the first inner side 18 of the primary housing wall 11. The second shell spacing s2 is greater than 40% of the second maximum wall thickness mw2 of the second rib 23.

Fig. 17 shows a section through the housing 1 along the section plane XVII-XVII from fig. 11. The second inner side 28 of the second housing shell 20 is thus visible with its second ribs 23,43 and 63. The first ribs 13 project into the second housing shell 20. The same applies to the first ribs 33,53,54 and 55. These ribs are also present in fig. 3 and 4.

Fig. 18 shows a detail from the cross-sectional view of fig. 17. The first rib 13 has at least one region 16 which is arranged at a first spacing d1 measured perpendicularly to the transverse direction 50 and perpendicularly to the second outer wall 21 relative to the second outer wall 21. The first spacing d1 is measured in the separating plane 3. The first spacing d1 is at least five times, in particular at least ten times, the first maximum wall thickness mw 1.

In a similar manner, the second ribs 23 have at least one region which is arranged with respect to the first outer wall 11 at a second spacing measured perpendicular to the transverse direction 50 and perpendicular to the first outer wall 11. The second pitch is measured in the separation plane 3. The second distance is at least five times, in particular at least ten times, the second maximum wall thickness mw 2.

The first housing shell 10 has at least two first ribs 13, 33. At least two first ribs 13 and 33, i.e. the first rib 13 and the first rib 33, have a point of intersection 4, seen in the transverse direction 50 (fig. 18). In the intersection 4, the first rib 13 and the first rib 33 are fixedly connected to each other. In the exemplary embodiment, the first rib 13 and the first rib 33 are of a uniform material design in the intersection point 4. Starting from the intersection point 4, the at least two first ribs 13 and 33 each extend perpendicularly to the transverse direction 50 as far as the first housing wall 11. The intersection point 4 has an intersection distance k1, viewed in the transverse direction 50, relative to the first housing wall 11. The crossing distance k1 is measured perpendicularly to the transverse direction 50 and perpendicularly to the first housing wall 11. The cross-over distance is at least five times, in particular at least ten times, the first maximum wall thickness mw1 of the first ribs 13.

The first rib 33, the first rib 54 and the first rib 55 form a closed structure encircling around the transverse direction 50. The structure has three corner points where the first ribs 33,54 and 55 are connected to each other. The structure encloses a hollow space 34.

As appears in fig. 3 and 17, the first rib 13 has a first notch 17. The first recess 17 extends in the transverse direction 50. The recess 17 is used to receive the second reinforcing rib 27 of the second housing shell 20. The stiffening ribs 27 are represented in fig. 18 and 4. In the assembled state of the housing 1, the second reinforcing ribs 27 of the second housing shell 20 project into the first recesses 17 of the first ribs 13 of the first housing shell 10, so that the second reinforcing ribs 27 cross the recesses 17 of the first ribs 13 in a direction perpendicular to the transverse direction 50. The second reinforcing ribs 27 are arranged only on one side of the partition plane 3. However, it is also possible to provide that the second reinforcing rib 27 is configured as a second rib and projects beyond the separating plane 3. However, it is also possible to provide the reinforcing rib 27 with a recess for receiving the first rib 13. The first rib 13 and the reinforcing rib 27 then plug into one another in a crosswise manner.

In fig. 19, the first rib of the first housing shell 10 and the second rib of the second housing shell 20 are marked with dotted lines. All first ribs and all second ribs have a total length G in total, measured in the separation plane 3. In the case of totalization, the first and second ribs are cut by the dividing plane 3 and the lengths of the first and second ribs are measured and summed in the dividing plane 3. The length of the ribs is measured here at all times in the direction of maximum expansion, viewed from the point of the rib. In the curved or angled extension of the ribs in the separating plane 3, the length of the respective rib is determined by the path integral (wegineral).

All first ribs and all second ribs are bounded by an imaginary enclosed polygon P. By means of the polygon P, all directly adjacent end points of the first and second ribs are connected to each other by straight lines in the partition plane 3.

The polygon P encloses a polygon area P. The quotient of the total length G and the polygonal area P is at least 0.2mm^-1。