case

Abstract

The present invention relates to a housing for a handheld working device, which comprises 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 are at least partially adjacent to each other along a partition plane. The first housing shell has at least one first rib, which extends transversely to, in particular perpendicularly to, the partition plane in a transverse direction. The first rib extends beyond the partition plane into the second housing shell. The first rib has a first rib height measured in a transverse direction from a first measuring point in the partition plane to a first end of the first rib facing the second housing shell. The second housing shell has a second housing height measured in a transverse direction from the same first measuring point in the partition plane to a second inner side of the second housing shell facing the first housing shell. At least one first measuring point exists in the partition plane, at which the first rib height is at least 30%, in particular at least 45%, preferably at least 60% of the second housing height.

Description

Technical Field

[0001] The invention relates to a housing for a handheld working device. Background Art

[0002] DE 10 2017 101 992 A1 discloses a handheld work tool with two housing halves. One housing half has ribs on its outer wall, which are inserted into grooves in the outer wall of the other housing half by means of a press fit. This creates a separation barrier between the two housing halves. Such housings can be damaged, in particular, when dropped from hip height. Summary of the invention

[0003] The invention is based on the object of creating a housing which is of stable construction.

[0004] This object is achieved by a shell for a hand-held work tool, which comprises two shell shells, namely a first shell shell and a second shell shell, wherein the first shell shell has a first outer wall, wherein the second shell shell has a second outer wall, wherein the first outer wall and the second outer wall at least partially abut one another along a dividing plane, wherein the first shell shell has at least one first rib, wherein the first rib extends in a transverse direction transversely to, in particular perpendicularly to, the dividing plane, wherein the first rib projects beyond the dividing plane into the second shell shell, wherein the first rib has a first rib height measured in a transverse direction from a first measuring point in the dividing plane to a first end of the first rib facing the second shell shell, wherein the second shell shell has a second shell height measured in a transverse direction from the same first measuring point in the dividing plane to a second inner side of the second shell shell facing the first shell shell, and wherein at least one first measuring point is present in the dividing 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.

[0005] According to the invention, it is provided that the first rib projects beyond the partition plane into the second housing shell. In the partition plane there are a number of first measuring points from which the second shell height can be determined. According to the invention, in the partition plane there is at least one first measuring point 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. This provides the possibility that the first rib is supported at the contour of the second housing shell and can thus provide for a greater breaking strength of the housing.

[0006] It can also be provided that a plurality of first measuring 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 second shell height.

[0007] Advantageously, the second housing shell has a second rib which extends in a transverse direction and projects beyond the partition plane into the first housing shell. The second rib has a second rib height measured in a transverse direction from a second measuring point in the partition plane to a second end of the second rib facing the first housing shell. The first housing shell has a first shell height measured in a transverse direction from the same second measuring point in the partition plane 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 partition 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 first shell height. As a result, the second rib can be supported at the contour of the first housing shell or at the first rib of the first housing shell and thus ensures a greater breaking strength of the housing.

[0008] The first rib has a first maximum wall thickness measured perpendicular to the transverse direction in the wall thickness direction. Advantageously, the rib spacing measured in the wall thickness direction between the first rib and the second rib is less than the first maximum wall thickness, in particular less than two-thirds of the first maximum wall thickness. In the deformation of the housing shell, the first rib and the second rib can support each other relative to each other. The deformation of the housing shell can occur after falling from a certain height in the case of a collision of the housing. The fracture strength of the housing is improved by the smaller spacing of the ribs from each other. The stability and loadability of the housing are generally improved. The housing is strengthened in the following area, 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. Strengthening is achieved by the joint action of the first rib and the second rib. This provides the following advantage, that is, the structure of each housing shell can be more finely designed compared to a housing with thicker ribs. In addition, in the case of the same degree of reinforcement of the housing, the design of the coarse mesh of the rib structure of each housing shell can be achieved in general. In the case of manufacturing the housing from plastic by a demoulding method, the shape can be designed and manufactured more simply.

[0009] Thicker ribs in only one housing shell also lead to greater reinforcement. In housings made of plastic, thicker ribs have the additional disadvantage that they can produce visually unsightly collapse points opposite the rib base on the outer side of the first housing wall. This can be avoided in the case of reinforcement of the housing by first and second ribs with a rib spacing that is less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness. This results in an attractive visual design with simultaneously high stability and strength of the housing.

[0010] Furthermore, reinforcement can be achieved in a simple manner by a rib spacing that is less than the first maximum wall thickness, in particular less than two thirds of the first maximum wall thickness, in particular compared to a separate reinforcement component introduced between the two housing shells.

[0011] Advantageously, the rib spacing is at least 1%, in particular at least 5%, of the first maximum wall thickness, thereby ensuring that, in the event of an external deformation of the housing, for example during a collision, the first rib and the second rib come into contact with one another and energy can be transferred from one to the other rib.

[0012] Suitably, the rib spacing is substantially constant.

[0013] Advantageously, the wall thickness of the first rib measured in the wall thickness direction differs in the transverse direction by less than 10% of the first maximum wall thickness.

[0014] In particular, the first rib extends on both sides of the separating plane.

[0015] 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 measured perpendicularly to the second outer wall in the dividing plane relative to the second outer wall. As a result, the stability of the housing is also increased in the region spaced apart from the outer wall.

[0016] Suitably, the first rib is fixed to the first outer wall. In particular, the first rib is fixed to the first outer wall with its first rib base in the transverse direction. Thus, force can be transmitted between the first outer wall and the first rib.

[0017] In particular, the first rib is formed from the same material as the first outer wall, thereby creating a stable connection between the first rib and the first outer wall.

[0018] 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 the first shell distance is greater than 40% of the first maximum wall thickness of the first rib. As a result, the housing can be designed such that the first rib and the second rib overlap over a larger area with respect to the transverse direction. The first rib is thus supported in the vicinity of the second rib base, so that forces can be well absorbed and further conducted.

[0019] In an advantageous development of the invention, the first housing shell has at least two first ribs. Preferably, the at least two first ribs have an intersection point when viewed in the transverse direction. A stabilizing structure is created by the first ribs acting in a cross direction, which increases the stability of the housing. In particular, the intersection point has a first cross distance relative to the first housing wall when viewed in the transverse direction. Preferably, the at least two first ribs extend from the intersection point to the first housing wall when viewed in the transverse direction. As a result, forces can be transmitted between the intersection point and the first housing wall. The at least two first ribs can act together in the case of absorbing forces via the intersection point. As a result, the forces are evenly distributed and can be absorbed more easily by the housing without damage.

[0020] Suitably, the first housing shell has a plurality of first ribs. In particular, the second housing shell has a plurality of second ribs.

[0021] The plurality of first ribs and the plurality of second ribs have a total length measured in the partition plane. The plurality of first ribs and the plurality of second ribs are limited in the partition plane by an enclosed polygon. The corner points of the polygon are located at the end points of the plurality of first ribs and the plurality of second ribs in the partition plane. The polygon has a polygonal area. In an advantageous improvement of the present invention, it is provided that the quotient of the total length of the plurality of first ribs and the plurality of second ribs and the polygonal area is at least 0.2 mm -1 This results in a sufficiently high rib density for a high stability of the housing.

[0022] Suitably, the first rib has a first recess. In particular, the second housing shell has a second reinforcing rib. 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 extends into the first housing shell via the partition plane. Advantageously, the second reinforcing rib extends into the first recess of the first rib in a transverse direction. In particular, the second reinforcing rib crosses the recess of the first rib in a direction perpendicular to the transverse direction. During deformation of the housing, the first rib of the first housing shell and the second reinforcing rib of the second housing shell can support each other and forces can be transmitted between them. This also improves stability.

[0023] In an advantageous improvement of the present invention, it is provided that at least a portion of the plurality of first ribs, viewed in the transverse direction, forms a closed structure surrounding the transverse direction. Through the closed structure, the plurality of first ribs of the second portion of the plurality of first ribs can further conduct forces to each other. The stability of the housing is thereby improved.

[0024] Expediently, the first housing shell and the second housing shell are injection-cast parts.

[0025] In particular, the housing is a handle housing. Expediently, operating elements for operating the power tool are arranged on the handle housing.

[0026] In an advantageous development of the invention, it is provided that the first rib intersects the partition plane over a first total length and that the first rib has a first measuring point over at least half of the first total 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% of the associated second shell height. As a result, the first rib is supported in the second shell shell over a greater part of its first length in the partition plane during the deformation of the shell during a collision. It can be provided in particular that the rib spacing between the first rib of the first shell shell and the second rib of the second shell shell is less than the first maximum wall thickness of the first rib, in particular less than two thirds of the first maximum wall thickness of the first rib, over at least half of the first total length of the first rib. It can also be provided that the second rib intersects the partition plane over a second integrated length and that the second rib has a first measuring point over at least half of the second total 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 associated second shell height. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The embodiments of the present invention are explained below with reference to the accompanying drawings.

[0028] Figure 1 shows a schematic side view of a working device with a housing,

[0029] Figure 2 shows a perspective view of the housing,

[0030] Figure 3 The view toward the inside of the first housing shell shows the Figure 2 A perspective view of a first housing shell of a housing,

[0031] Figure 4 The view towards the inside of the second housing shell shows the Figure 2 A perspective view of a second housing shell of the housing,

[0032] Figure 5 Shown in the transverse direction towards Figure 3 A side view of the inside of the first housing shell,

[0033] Figure 6 Shown in the transverse direction towards Figure 4 A side view of the inside of the second housing shell,

[0034] Figure 7 shows the direction perpendicular to the lateral direction from Figure 3 A side view of the first housing shell,

[0035] Figure 8 shows the direction perpendicular to the lateral direction from Figure 4 A side view of the second housing shell,

[0036] Fig. 9 shows the direction perpendicular to the lateral direction from Figure 3 A side view of the first housing shell,

[0037] Fig.10 shows the direction perpendicular to the lateral direction from Figure 4 A side view of the second housing shell,

[0038] Fig.11 shows the direction perpendicular to the lateral direction from Figure 2 A side view of the housing,

[0039] Fig.12 shows the Fig.11 The section of the cutting plane XII-XII,

[0040] Fig.13 shows the Fig.12 The section of the cutting plane XIII-XIII,

[0041] Fig.14 Shown from Fig.13 Details of the cross-section,

[0042] Fig.15 shows the Fig.12 The section of the cutting plane XV-XV,

[0043] Fig.16 shows the Fig.12 The section of the cutting plane XVI-XVI,

[0044] Fig.17 shows the Fig.11 The section of the section plane XVII-XVII,

[0045] Fig.18 Shown from Fig.17 The cross-sectional details of

[0046] Fig.19 Shown is a rib with markings for the first and second ribs. Fig.18 details. DETAILED DESCRIPTION

[0047] Figure 1 A handheld working tool 2 is shown. The handheld working tool 2 is a suction blower. However, the working tool can also be, for example, a motor chain saw, a brush cutter, a cutter or the like.

[0048] The power tool 2 has a housing 1. In the embodiment, the housing 1 is a handle housing. However, the housing can also be any other type of housing, such as a motor housing.

[0049] As in Figure 2 As shown in the figure, the work tool 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 motor (not shown) of the work tool 2 can be operated. The operating element 5 protrudes from the housing 1.

[0050] 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 .

[0051] The first housing shell 10 and the second housing shell 20 are respectively manufactured by a demoulding method. The first housing shell 10 and the second housing shell 20 are made of plastic. In the embodiment, the first housing shell 10 and the second housing shell 20 are respectively manufactured by an injection molding method. The first housing shell 10 and the second housing shell 20 are injection molded parts. Figure 2 , a transverse direction 50 is drawn in. When the housing 1 is assembled, the first housing shell 10 and the second housing shell 20 are brought closer to each other in the transverse direction 50 so that they are in contact with each other. The transverse direction 50 points in two opposite directions. The transverse direction 50 corresponds to the demoulding direction when the first housing shell 10 is demoulded. The transverse direction 50 corresponds to the demoulding direction when the second housing shell 20 is demoulded. The demoulding direction is used to mark the direction in which the shape of the corresponding housing shell 10, 20 is removed during demoulding. This is referred to as the normal demoulding direction. The removal direction of the slide for forming the undercut is not referred to as the demoulding direction.

[0052] Figure 3 The first housing shell 10 is shown 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 the second housing shell 20. The first inner side 18 is at least partially limited by a first outer wall 11. The first outer wall 11 forms a part of the outer side 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 on the second housing shell 20. In the exemplary embodiment, the first end side 12 extends at least partially perpendicular to the transverse direction 50.

[0053] Figure 4 The second housing shell 20 is shown. 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 limited by a second outer wall 21. The second outer wall 21 forms a part of the outer side 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 side 22 on the first housing shell 10. In the exemplary embodiment, the second end side 22 extends at least partially perpendicular to the transverse direction 50.

[0054] The first outer wall 11 and the second outer wall 21 form the outer side of the housing 1. The pillars in the interior of the housing 1 serve as exceptions to the concept of outer walls.

[0055] The housing shells 10 and 20 that abut against each other are particularly Figures 13 to 15 From Figure 3 , 4 13, it can be seen that 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 partition plane 3. In the partition plane 3, the first housing shell 10 and the second housing shell 20 touch each other. The partition plane 3 extends transversely to the transverse direction 50. In the exemplary embodiment, the partition plane 3 extends perpendicular to the transverse direction 50. In the partition plane 3, the first housing shell 10 and the second housing shell 20 touch each other along the transverse direction 50.

[0056] As in Fig.14 As shown in FIG. 1 , 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 protrudes in the transverse direction 50 in the direction toward the second housing shell 20 beyond the first end base 51 ( Fig.14 ). The second projection 29 projects beyond the second end base 61 of the second end side 22 in the transverse direction 50 in the direction toward the first housing shell 10. The second projection 29 is arranged closer to the outer side of the housing 1 than the first projection 19. The outer side of the second projection 29 is part of the outer side of the housing 1. The first projection 19 corresponds to the second projection 29. The second projection 29 and the first projection 19 overlap with respect to the transverse direction 50. The second projection 29 at least partially surrounds the outer side of the first projection 19. When the housing 1 is assembled, 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 is in contact with the inner side of the second projection 29.

[0057] In transverse direction 50, first projection 19 is delimited by first front face 52. First front face 52 faces second housing shell 20. First front face 52 abuts against second end base 61 of second end side 22 of second outer wall 21. First front face 52 and second end base 61 abut against one another in partition plane 3.

[0058] The second projection 29 projects beyond the partition plane 3 in the transverse direction 50 in the direction toward the first housing shell 10. The second projection 29 is delimited 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 on 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 extends outside the partition plane 3.

[0059] As from Figures 2 to 4 As can be seen, the first outer wall 11 and the second outer wall 21 define a hollow space in the interior of the housing 1. In the hollow space, in the first housing shell 10 ( Figure 3 ) is provided with a first rib 13. The first rib 13 extends from the first outer wall 11 of the first housing shell 10 along the transverse direction 50 in the direction toward the second housing shell 20. Figure 7 and 9 As shown in FIG. 5 , the first rib 13 projects beyond the partition plane 3 in the transverse direction 50. The first rib 13 projects into the second housing shell 20. The first housing shell 10 has a plurality of first ribs 13, 33, 53, 54, 55, as shown in FIG. Figure 3 All of the first ribs 13, 33, 53, 54 and 55 extend beyond the partition plane 3. The first ribs 13, 33, 53, 54, 55 are fixed to the first outer wall 11. The first rib 13 is fixed to the first outer wall 11 with its first rib base 14 ( Fig.13 In the exemplary embodiment, the first ribs 13 , 33 , 53 , 54 , 55 are formed of the same material as the first outer wall 11 . The first ribs 13 , 33 , 53 , 54 , 55 are produced together with the first outer wall 11 by an injection molding method. The first ribs 13 , 33 , 53 , 54 , 55 extend on both sides of the partition plane 3 .

[0060] The first ribs 33, 54 and 55 together form a closed structure surrounding the transverse direction 50 ( Figure 3 ).

[0061] A first reinforcement rib 56 is arranged on the inner side of the first outer wall 11. The first reinforcement rib 56 is fixed to the first outer wall 11. The first reinforcement rib 56 extends from the first outer wall 11 in the transverse direction 50 in the direction toward the second housing shell 20. The first reinforcement rib 56 is arranged only on the side of the partition plane 3. The first reinforcement rib 56 advantageously connects the first rib 13 to the first rib 53. In the embodiment, the first ribs 13 and 53 together with the first reinforcement rib 56 form a closed structure surrounding the transverse direction 50.

[0062] Figure 4The second housing shell 20 is shown with a view toward its inner side. The second housing shell 20 has a second rib 23. The second rib 23 extends from the second outer wall 21 of the second housing shell 20 in the transverse direction 50 in the direction toward the first housing shell 10. Figure 8 and 10 As shown in FIG. 5 , the second rib 23 projects beyond the partition plane 3 in the transverse direction 50. The second rib 23 projects into the first housing shell 10. The second rib 23 is arranged in the hollow space ( Figures 2 to 4 ). The first outer wall 11 and the second outer wall 21 define a hollow space in the interior of the housing 1. Both the first rib 13 and the second rib 23 are arranged in the hollow space. The second housing shell 20 has a plurality of second ribs 23, 43, 63 ( Figure 4 ). All the second ribs 23, 43 and 63 extend beyond the partition plane 3. The second ribs 23, 43, 63 are fixed to the second outer wall 21. The second rib 23 is fixed to the second outer wall 21 with its second rib base 24 ( Fig.15 In the exemplary embodiment, the second ribs 23, 43, 63 are formed of the same material as the second outer wall 21. The second ribs 23, 43, 63 are manufactured together with the second outer wall 21 by an injection molding method.

[0063] As in Figure 4 As shown in the figure, a second reinforcement rib 27 is arranged on the inner side of the second outer wall 21. The second reinforcement rib 27 is fixed to the second outer wall 21. The second reinforcement rib 27 extends from the second outer wall 21 in the transverse direction 50 in the direction of the first housing shell 10. The second reinforcement rib 27 is arranged only on one side of the partition plane 3. The second reinforcement rib 27 advantageously connects the second rib 23 with the second rib 43. The second ribs 23 and 43 together with the second reinforcement rib 27 in the exemplary embodiment form a closed structure surrounding the transverse direction 50.

[0064] Figure 5 A side view in the transverse direction 50 toward the inside of the first housing shell 10 is shown. Figure 6 A side view in the transverse direction 50 toward the inner side of the second housing shell 20 is shown.

[0065] Figures 7 to 10 A side view of the first housing shell 10 and the second housing shell 20 is shown in a direction perpendicular to the transverse direction 50 . Figure 7 and 9 In particular, it is shown how the first rib 13 projects beyond the partition plane 3 . Figure 8 and 10 In particular, it is shown how the second rib 23 projects beyond the partition plane 3 .

[0066] Fig.11The housing 1 is shown in a side view in a direction perpendicular to the transverse direction 50 in the assembled state. A joint 31 is formed between the first housing shell 10 and the second housing shell 20 .

[0067] Fig.12 shows the Fig.11 The section plane XII-XII passes through the cross section of the housing 1. Fig.12 The first inner side 18 of the first housing wall 11 of the first housing shell 10 is shown. The second rib 23 of the second housing shell 20 extends into the first housing shell 10. The first rib 13 of the first housing shell 10 and the second rib 23 of the second housing shell 20 are arranged directly next to each other. The first rib 13 of the first housing shell 10 and the second rib 23 of the second housing shell 20 extend parallel to each other in the cross-sectional plane.

[0068] Fig.13 shows the Fig.12 The section plane XIII-XIII of FIG. 1 passes through the section of the housing 1. The 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 15 is the end side of the first rib 13. The first end 15 is the edge of the first rib 13. The first end 15 points in the transverse direction 50.

[0069] The first rib 13 has a first rib height r1a, r1b. The first rib height r1a, r1b is measured from the dividing plane 3 to the first end 15 of the first rib 13. The first rib height r1a, r1b is measured in the transverse direction 50. The first rib height r1a, r1b is measured perpendicular to the dividing plane 3. The first rib height r1a is measured starting from a first measuring point M1a. The first rib height r1b is measured starting from a first measuring point M1b. The first measuring points M1a, M1b are in the dividing plane 3. The first measuring points M1a, M1b are in the area of ​​the dividing plane 3 cut by the first rib 13. The first measuring point M1a is spaced apart from the first measuring point M1b. In an embodiment, the first rib height r1a is greater than the first rib height r1b.

[0070] The second housing shell 20 has a second housing height h2a, h2b. The second housing height h2a, h2b is measured from the partition plane 3 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 housing height h2a, h2b is measured along the transverse direction 50. The second housing height h2a, h2b is measured perpendicular to the partition plane 3. The second housing height h2a is measured starting from the first measuring point M1a. The second housing height h2b is measured starting from the first measuring point M1b. The second housing height h2a is measured starting from the first measuring point M1a which is the same as the first rib height r1a. The second housing height h2b is measured starting from the first measuring point M1b which is the same as the first rib height r1b. In an embodiment, the second housing height h2a is greater than the second housing height h2b.

[0071] There are a number of first measuring points in the partition plane 3, from which the first rib height and the second shell height can be determined. There is at least one first measuring point M1a, M1b 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, h2b. In an embodiment, the first rib height r1a is at least 60% of the second shell height h2b. The first rib height r1b is at least 60% of the second shell height h2b.

[0072] The first rib 13 cuts the partition plane 3 over the integrated first length l1. The first rib 13 has a first measuring point over at least half 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. In an embodiment, the first rib 13 has a first measuring 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 over the entire 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.

[0073] Fig.15 shows the Fig.12 The section plane XV-XV of FIG. 1 passes through the section of the housing 1. The 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 in dashed lines. 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 the end side of the second rib 23. The second end 25 is the edge of the second rib 23. The second end 25 points in the transverse direction 50.

[0074] The second rib 23 has a second rib height r2a, r2b. The second rib height r2a, r2b is measured from the dividing plane 3 to the second end 25 of the second rib 23. The second rib height r2a, r2b is measured along the transverse direction 50. The second rib height r2a, r2b is measured perpendicular to the dividing plane 3. The second rib height r2a is measured starting from the second measuring point M2a. The second rib height r2b is measured starting from the second measuring point M2b. The second measuring points M2a, M2b are in the dividing plane 3. The second measuring points M2a, M2b are in the area of ​​the dividing plane 3 cut by the second rib 23. The second measuring point M2a is spaced apart from the second measuring point M2b. In an embodiment, the second rib height r2a is greater than the second rib height r2b.

[0075] The first housing shell 10 has a first housing height h1a, h1b. The first housing height h1a, h1b is measured from the partition plane 3 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 housing heights h1a, h1b are measured in the transverse direction 50. The first housing heights h1a, h1b are measured perpendicular to the partition plane 3. The first housing height h1a is measured starting from a second measuring point M2a. The first housing height h1b is measured starting from a second measuring point M2b. The first housing height h1a is measured starting from a second measuring point M2a that is identical to the first rib height r1a. The second housing height h2b is measured starting from a second measuring point M2b that is identical to the second rib height r2b. In an embodiment, the first housing height h1a is greater than the first housing height h1b.

[0076] There are a number of second measuring points in the partition plane 3, from which the second rib height and the first shell height can be determined. There is at least one second measuring point M2a, M2b in the partition 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, h1b. In an embodiment, the second rib height r2a is at least 60% of the first shell height h1a. The second rib height r2b is at least 60% of the first shell height h1b.

[0077] The second rib 23 cuts the partition plane 3 over the integrated second length l2. 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 associated first shell height. In an embodiment, the second rib 23 has a second measuring 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 arranged that the second rib 23 has a second measuring point over the entire 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.

[0078] In the exemplary embodiment, the first housing shell 10 and the second housing shell 20 touch each other only in a single plane with respect to the transverse direction 50. The position of the partition plane 3 is clearly defined. If the first housing shell 10 and the second housing shell 20 are to have a contact point in more than one plane in the transverse direction, the position of the partition plane can be defined so that the partition plane is perpendicular to the demoulding 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 ​​the part of the outer side of the first outer wall, which protrudes beyond the partition plane to be determined in the direction toward the second outer wall and touches the second outer wall. The second area is the area of ​​the part of the outer side of the second outer wall, which protrudes beyond the partition plane to be determined in the direction toward the first outer wall and touches the first outer wall.

[0079] Fig.16 shows the Fig.12 The section plane extends perpendicularly to the partition plane 3 through the first rib 13 and through the second rib 23. The section plane extends through Fig.13 The first measurement point M1b shown in Fig.15 The second measuring point M2b is shown in FIG. Fig.16 The first housing shell 10 has a first shell height h1b in the cross-sectional plane. The second housing shell 20 has a second shell height h2b. 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 M1b. The hollow space height h is measured from the first groove base 14 of the first rib 13 to the second inner side 28 of the second housing shell 20.

[0080] The first rib 13 and the second rib 23 overlap in the 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 r2b. 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 hollow space height h. This applies analogously to the overlap lengths at the first measuring point M1a, at the second measuring point M2a and at the second measuring point M2b.

[0081] The first rib 13 has a first maximum wall thickness mw1. The first maximum wall thickness mw1 is measured along a wall thickness direction 49. The wall thickness direction 49 extends perpendicularly to the transverse direction 50. The wall thickness direction 49 extends parallel to the partition plane 3.

[0082] 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 the exemplary 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 mw1.

[0083] The second rib 23 has a second maximum wall thickness mw2 measured in the wall thickness direction 49. In the embodiment, the second maximum wall thickness mw2 is the same as the first maximum wall thickness mw1. However, it can also be provided that the first maximum wall thickness mw1 and the second maximum wall thickness mw2 are different in size.

[0084] The rib spacing a is at least 10%, in particular at least 20%, of the first maximum wall thickness mw1. It can also be provided that the rib spacing a is at least 1%, in particular at least 5%, of the first maximum wall thickness mw1.

[0085] The first rib 13 has a first shell distance s1 relative to the second housing shell 20. The first shell distance s1 is measured in the transverse direction 50. The first shell distance s1 is measured from the first end 15 of the first rib 13 to the second inner side 28 of the second housing wall 21. The first shell distance s1 is greater than 40% of the first maximum wall thickness mw1 of the first rib 13. This is also the case in Fig.13 Presented in.

[0086] The second rib 23 has a second shell distance s2 ( Fig.16 ). The second shell distance s2 is measured in the transverse direction 50. The second shell distance s2 is measured from the first end 25 of the second rib 23 to the first inner side 18 of the first housing wall 11. The second shell distance s2 is greater than 40% of the second maximum wall thickness mw2 of the second rib 23.

[0087] Fig.17 shows the Fig.11The section plane XVII-XVII passes through the section of the housing 1. Thus, the second inner side 28 of the second housing shell 20 is visible with its second ribs 23, 43 and 63. The first rib 13 extends into the second housing shell 20. The same applies to the first ribs 33, 53, 54 and 55. These ribs are also Figure 3 and 4 Presented in.

[0088] Fig.18 Shown from Fig.17 Detail of a cross-sectional view of the first rib 13. The first rib 13 has at least one region 16 which is arranged at a first distance 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 distance d1 is measured in the partition plane 3. The first distance d1 is at least five times, in particular at least ten times, the first maximum wall thickness mw1.

[0089] In a similar manner, the second rib 23 has at least one region which is arranged at a second distance relative to the first outer wall 11 measured perpendicularly to the transverse direction 50 and perpendicularly to the first outer wall 11. The second distance is measured in the partition plane 3. The second distance is at least five times, in particular at least ten times, the second maximum wall thickness mw2.

[0090] The first housing shell 10 has at least two first ribs 13, 33. The at least two first ribs 13 and 33, that is, the first rib 13 and the first rib 33 have a cross point 4 ( Fig.18 ). In the intersection 4, the first rib 13 and the first rib 33 are fixedly connected to each other. In the embodiment, the first rib 13 and the first rib 33 are constructed with a uniform material in the intersection 4. Starting from the intersection 4, at least two first ribs 13 and 33 extend perpendicularly to the transverse direction 50 to the first housing wall 11. The intersection 4 has a crossover distance k1 relative to the first housing wall 11 as seen in the transverse direction 50. The crossover distance k1 is measured perpendicularly to the transverse direction 50 and perpendicularly to the first housing wall 11. The crossover distance is at least five times, in particular at least ten times, the first maximum wall thickness mw1 of the first rib 13.

[0091] The first rib 33 , the first rib 54 and the first rib 55 form a closed structure which surrounds the transverse direction 50 . The structure has three corner points at which the first ribs 33 , 54 and 55 are connected to one another. The structure encloses the hollow space 34 .

[0092] As in Figure 3 and 17 As shown in FIG. 5 , the first rib 13 has a first recess 17. The first recess 17 extends in the transverse direction 50. The recess 17 is used to accommodate the second reinforcement rib 27 of the second housing shell 20. The reinforcement rib 27 is Fig.18 and 4. In the assembled state of the housing 1, the second reinforcement rib 27 of the second housing shell 20 projects into the first recess 17 of the first rib 13 of the first housing shell 10, so that the second reinforcement rib 27 crosses the recess 17 of the first rib 13 in a direction perpendicular to the transverse direction 50. The second reinforcement rib 27 is arranged only on one side of the partition plane 3. However, it can also be provided that the second reinforcement rib 27 is designed as a second rib and projects beyond the partition plane 3. However, it can also be provided that the reinforcement rib 27 has a recess for accommodating the first rib 13. The first rib 13 and the reinforcement rib 27 are then plugged into each other in a cross manner.

[0093] exist Fig.19 In FIG. 1 , the first rib of the first housing shell 10 and the second rib of the second housing shell 20 are marked with dashed lines. All first ribs and all second ribs have a total length G measured in the dividing plane 3. In the total case, the first and second ribs are cut by the dividing plane 3 and the lengths of the first and second ribs are measured and totaled in the dividing plane 3. The length of the rib is always measured in the direction of maximum expansion from the point of the rib. In the case of a curved or angled extension of the rib in the dividing plane 3, the length of the respective rib is determined by a path integral.

[0094] All first ribs and all second ribs are bounded by an imaginary enclosing polygon P. By means of the polygon P, all directly adjacent end points of the first ribs and the second ribs are connected to one another in the separating plane 3 by straight lines.

[0095] The polygon P encloses the polygon area P. The quotient of the total length G and the polygon area P is at least 0.2 mm -1 .

Claims

1. A housing for a handheld working device (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) are at least partially adjacent to 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) perpendicular to the partition plane (3), wherein: The first rib (13, 33, 53, 54, 55) protrudes beyond the dividing plane (3) into the second housing shell (20), wherein the first rib (13, 33, 53, 54, 55) has a first rib height (r1a, r1b) measured along a transverse direction (50) from a first measuring point (M1a, M1b) in the dividing plane (3) to a first end (15) of the first rib (13, 33, 53, 54, 55) facing the second housing shell (20), wherein the first rib (13, 33, 53, 54, 55) has a first rib height (r1a, r1b) measured from a first measuring point (M1a, M1b) in the dividing plane (3) to a first end (15) of the first rib (13, 33, 53, 54, 55) facing the second housing shell (20). The second housing shell (20) has a second shell height (h2a, h2b) measured in a transverse direction (50) from the same first measuring point (M1a, M1b) in the dividing plane (3) to a second inner side (28) of the second housing shell (20) facing the first housing shell (10), wherein at least one first measuring point (M1a, M1b) is present in the dividing plane (3) at which the first rib height (r1a, r1b) is at least 15% of the second shell height (h2a, h2b), The invention is characterized in that the second housing shell (20) has a second rib (23, 43, 63), which extends from a second outer wall (21) of the second housing shell (20) in a transverse direction (50) toward the first housing shell (10), the second rib (23, 43, 63) protrudes beyond the dividing plane (3), and the second rib (23, 43, 63) protrudes into the first housing shell (10).

2. The housing according to claim 1, characterized in that The second rib (23, 43, 63) has a second rib height (r2a, r2b) measured along the transverse direction (50) from a second measuring point (M2a, M2b) in the dividing plane (3) 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 along the transverse direction (50) from the same second measuring point (M2a, M2b) in the dividing plane (3) 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 dividing plane (3) at which the second rib height (r2a, r2b) is at least 15% of the first shell height (h1).

3. The housing according to claim 1, characterized in that The first rib (13, 33, 53, 54, 55) has a first maximum wall thickness (mw1) measured along a wall thickness direction (49) perpendicular to the transverse direction (50), and a rib spacing (a) measured along the wall thickness direction (49) between the first rib (13, 33, 53, 54, 55) and the second rib (23, 43, 64) is smaller than the first maximum wall thickness (mw1).

4. The housing according to claim 3, characterized in that: The rib spacing (a) is at least 1% of the first maximum wall thickness (mw1).

5. 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 at a first distance (d1) from the second outer wall (21) measured perpendicularly to the second outer wall (21) in the partition plane (3).

6. The housing according to claim 1, characterized in that The first ribs (13, 33, 53, 54, 55) are fixed to the first outer wall (11).

7. The housing according to claim 6, characterized in that The first ribs (13, 33, 53, 54, 55) are constructed from the same material as the first outer wall (11).

8. The housing according to claim 1, characterized in that The first rib (13, 33, 53, 54, 55) has a first shell distance (s1) measured in a transverse direction (50) relative to the second housing shell (20), and the first shell distance (s1) is greater than 40% of a first maximum wall thickness (mw1) of the first rib (13, 33, 53, 54, 55).

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

10. The housing according to claim 9, characterized in that The intersection point (4) has a first intersection distance (k1) relative to the first outer wall (11) when viewed in a transverse direction (50), and the at least two first ribs (13, 33) extend from the intersection point (4) to the first outer wall (11).

11. 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), and 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) having a total length (G) measured in the partition plane (3), the plurality of first ribs (13, 33, 53, 54, 55) and the plurality of second ribs (23, 43, 63) being limited in the partition plane (3) by an imaginary enclosed polygon (P), the polygon (P) enclosing a polygon area (A), and the quotient of the total length (G) and the polygon area (P) being at least 0.2 mm -1 .

12. 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), The second reinforcing rib (27) thus crosses the notch (17) of the first rib (13) in a direction perpendicular to the transverse direction (50).

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

14. The housing according to claim 1, characterized in that The housing (1) is a handle housing, and an operating element (5) for operating the power tool (2) is arranged on the handle housing.

15. The housing according to claim 1, characterized in that The first rib (13, 33, 53, 54, 55) cuts the dividing plane (3) over a total first length (l1), and the first rib (13, 33, 53, 54, 55) has a first measuring point over at least half of the total first length (l1), at which the first rib height (r1a, r1b) is at least 30% of the associated second shell height (h2a, h2b).

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