Cable entry point for a wall
The cable gland for outboard motor covers integrates easily with a Reuleaux triangle design and flanged sections, securing and sealing cables effectively with radial and axial forces, addressing integration and sealing challenges.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- NEANDER MARINE
- Filing Date
- 2016-10-10
- Publication Date
- 2026-05-28
AI Technical Summary
Existing cable glands for outboard motor covers are not easily integrated and require significant effort, lacking a compact and effective design for securing and sealing cables.
A cable gland with a cylindrical receiving body and socket-shaped retaining element, featuring a Reuleaux triangle cross-section and flanged sections, uses elastic and rigid materials to secure and seal cables with radial and axial forces, ensuring easy integration and effective sealing.
The design provides a clear, compact, and easy-to-implement cable storage solution with enhanced sealing capabilities, securing cables with radial forces and ensuring fluid-tightness through axial forces.
Smart Images
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Abstract
Description
[0001] The invention relates to a cable gland for a wall of a cover of an outboard motor, which cable gland carries several cables of an electrical or mechanical type, according to the preamble of claim 1.
[0002] Cable penetrations are known from a large number of publications, in particular from DE 297 01 321 U1, DE 20 2014 007 055 U1, DE 102 49 234 A1, DE 10 2006 046 049 A1, DE 10 2013 216 465 A1, DE 1 159 066 B and DE 78 24 425 U1.
[0003] A fluid-tight cable gland is known, DE 20 2014 103 917 U1, which includes a receiving device for an electrical conductor in the form of wires. The receiving device has a plastic screw with a screw head, a screw shank, and a screw nut. The screw head and screw nut bear against a wall on which the cable gland is effective. Axial bores are machined into the screw head and screw shank in which the wires are arranged. A sealing element is provided between the screw head and the wall. In another embodiment of this document, locking elements are effective.
[0004] US Patent 4,797,513 addresses a cable penetration in a wall separating two rooms. This penetration is designed to prevent noise and water leakage. The penetration is a rubber grommet that surrounds a cable bundle containing multiple wires.
[0005] The object of the invention is to design a cable gland for a wall of a cover of an outboard motor which can be easily integrated into the cover and is characterized by low effort in its implementation as well as good function.
[0006] According to the invention, this problem is solved by the features of claim 1. Further features that elaborate on the invention are contained in the dependent claims.
[0007] The main advantages achieved with the invention lie in the fact that the cable gland, with its cylindrical receiving body providing the first through-openings for the cables and the socket-shaped retaining element, represents a sophisticated cable storage device characterized by its clear design, compact size, ease of implementation, and high effectiveness. A clever design feature is that the wall defines a linear pipe stub of the cover, which extends from a section of the cover. This feature is further enhanced by the fact that the stub has a cross-sectional shape resembling a Reuleaux triangle and that the wall is provided with secondary through-openings for the screws of the screw device adjacent to the vertices of the Reuleaux triangle.It is worth noting that in the connection area of the retaining element to the wall, the shape of the Reuleaux triangle is continued, with flanged sections integrated into the retaining element in the area of the first through-holes. These flanged sections provide second through-holes for the screws. A further optimization of the component is the inclusion of concave sections in the flanged section of the retaining element's casing, extending longitudinally along the element. For example, the screw heads are supported on the one hand by the flanged sections of the retaining element and on the other hand screwed into nuts on the inside of the wall.Standards are set by the fact that the sleeve of the retaining element and an outer surface of the receiving body have corresponding cones, which have a larger diameter adjacent to the connection area than near a free end area of the retaining element. Of high design importance is the fact that the retaining element and the receiving body interact with a defined force-fit via the cones, thereby exerting radial and axial forces, provided the receiving body is made of elastic material and the retaining element of rigid material. The radial forces serve to secure the cables via the first through-holes; the axial forces ensure that the receiving body acts as a sealing element against the wall.Finally, there is the possibility that the end area of the retaining element has a closing wall with fourth openings for the cables, or that the end area of the retaining element is open.
[0008] The drawing shows an embodiment of the invention, which is described in more detail below.
[0009] They show Fig. 1. A slanted view from the rear left below of an outboard motor with a cover, Fig. 2 a top view of a lower part of the cover Fig. 1, Fig. 3 a cross-section of a cable penetration through a wall of a cover, Fig. 4 an exploded view of the cable routing from the front right onto the cover, Fig. 5 an exploded view showing part of the lower part of the cover and details of the cable entry.
[0010] An outboard motor 1 for propelling a watercraft comprises a cover 2 that conceals an internal combustion engine (not shown). The cover 2 is formed by a dome-shaped upper part 3 and a trough-shaped lower part 4, both joined in a connecting zone 5. The internal combustion engine drives a propeller 6 via a gearbox (not shown). A manual power control device 7, for example, serves to influence the operation of the internal combustion engine. This device is connected via cables 8, 9, and 10 of an electrical or mechanical type. Fig. 3 and Fig. 4- - Fig. 3- is connected to the internal combustion engine.
[0011] For routing these cables 8, 9, and 10, a cable gland 12 is provided on an upright wall 11 of the lower part 4 of the cover 2, through which the cables 8 to 10 penetrate a wall opening 13 in the wall 11. A cable storage device 14 is designed for the cables 8 to 10, which is held in place on the wall 11 of the cover 2 by means of a screw device 15. The cable storage device 14 has a receiving body 16, which is equipped with first through-openings 17, 18, and 19 for the cables 8, 9, and 10. Fig. 4- is provided. The receiving body 12 has a cylindrical shape and is enclosed by first and second end faces 20 and 21. Fig. 3- limited and consists of elastic material - rubber. An outer surface 22 of the receiving body 16 is enclosed by a retaining element 23 made of rigid material, which is designed in the manner of a bushing and is fastened to the wall 11 by means of several screws 24, 25 and 26 of the screw device 15.
[0012] The upright wall 11 represents the end piece of a tubular nozzle 27, which is led linearly away from an arc-shaped cover section 28 on a front side 29 of the lower part cover 2 - Fig. 2, Fig. 3 and Fig. 4-. A central longitudinal plane AA of the nozzle 27 runs at a parallel distance to a central longitudinal plane BB of the cover 2, wherein the central longitudinal plane AA of the nozzle 27 is adjacent to a longitudinal plane DD oriented in the longitudinal direction CC of the cover 2 parallel to the central longitudinal plane BB and tangent to a longitudinal side 30 of the cover 2.
[0013] The nozzle 27, viewed in cross-section, is designed in the manner of a Releaux triangle 31 - Fig. 3 and Fig. 4- where wall 11 is adjacent to angle points Ws1, Ws2 and Ws3 - Fig. The triangle 31 has two through-openings 32, 33 and 34 for the screws 24, 25 and 26 of the screw device 15. In a connection area 35 of the retaining element 23 to the wall 11, the shape of the triangle 31 is continued. Fig. 4-, wherein in the area of the second through-openings 32, 33 and 34 flange sections 36, 37 and 38 are formed into the retaining element 23, and in third through-openings 39, 40 and 41 are incorporated for the screws 24, 25 and 26. From the flange sections 36, 37 and 38, concave, elliptical sections 43 extend into a sleeve 42 of the retaining element 23, extending in the longitudinal direction of the retaining element 23.
[0014] The screw heads 44, 45 and 46 of the screws 24, 25 and 26 are supported on one side by the flange sections 36, 37 and 38 of the retaining element 23 and on the other side are screwed into screw nuts 47, 48 and 49 -Fig. -3-, which are arranged on an inside 50 of the wall 11, i.e. in an interior 51 of the cover 2.
[0015] An inner surface 42' of the sheath 42 of the retaining element 23 and an outer surface 51 of the receiving body 16 comprise cones KI and KII, which have a larger diameter adjacent to the connection area 35 than near an end area 52 of the retaining element 23 (KIDg > KIIDk). The cones KI and KII interact with a defined frictional engagement such that, thanks to the elastic material of the receiving body 16, the through-openings 17, 18 and 19 fix the cables 8, 9 and 10 in the radial direction, and the end face 20 is clamped in the axial direction against the wall 11 of the nozzle 27 in a substantially fluid-sealing manner. Fig. 3 and Fig. 5-.
[0016] Finally, there are two possibilities for the design of the end area of the over-retaining element 23: Firstly, a closing wall 53 with third passage openings 54, 55 and 56 at the end area 52 - Fig. 4. to provide for cables 8, 9 and 10 and secondly to design the end area 52 to be open - Fig. 5-.
Claims
[1] Cable entry for a wall of a cover of an outboard motor, the cable entry carrying several cables of an electrical or mechanical type, which penetrate through openings in a cable storage device, wherein the cable storage device is held in position on the wall by means of a screw device, characterized by, that the cable storage device (14) comprises a receiving body (16) with first through-openings (17, 18, 19) for the cables (8, 9, 10), which has a cylindrical shape and is enclosed by a socket-shaped retaining element (23) and is fastened to the wall (11) of the cover (2) by means of the screw device (15) comprising several screws (24, 25, 26), which wall (11) delimits a tubular spigot (27) of the cover (2) which extends from a cover section (28) of the cover (2), wherein the spigot (27) has a cross-section in the form of a Reuleaux triangle (31), and that the wall (11) has second through-openings (32, 33, 34) for the screws in a connection area adjacent to the vertices (Ws1, Ws2, Ws3) of the Reuleaux triangle (31). (35) of the over-retaining element (23) to the wall (11) the shape of the Reuleaux triangle (31) of the nozzle (27) is continued, wherein in the area of the second through-openings (32,33 and 34) Flange sections (36, 37, 38) are formed into the retaining element (23) in which third through-openings (40, 41, 42) for the bolts (24, 25, 26) are incorporated. [2] Cable feedthrough according to claim 1, characterized by , that concave sections (43) extend from the flange sections (36, 37, 38) in a shell (42) of the retaining element (42) in the longitudinal direction of the retaining element (42). [3] Cable feedthrough according to claims 1 and 2, characterized by , that the screw heads (44, 45, 46) of the screws (24, 25, 26) are supported on the one hand by the flange sections (36, 37, 38) of the retaining element (23) and on the other hand are screwed into screw nuts (47, 48, 49) on an inside (50) of the wall (11). [4] Cable entry to 1 and 3, characterized by, that an inner surface (42') of the mantle (42) of the retaining element (23) and an outer surface (22) of the receiving body (16) are designed as corresponding cones (KI, KII) which have a larger diameter (KIDg > KIIDk) adjacent to the connection area (35) than near an end area (52) of the retaining element (23). [5] Cable feedthrough according to claim 4, wherein the retaining element (23) and the receiving body (16) cooperate with defined force transmission via the cones (KI, KII). [6] Cable feedthrough according to claims 1 and 5, characterized by , that the end area (52) of the retaining element (23) is provided with a closing wall (53) with fourth passage openings (54, 55, 56) for the cables (8, 9, 10). [7] Cable entry according to claims 1 and 4, characterized by , that the end area (52) of the override retaining element (23) is open.