SK35197A3 - End piece for an electrical conductor feed trough - Google Patents

Abstract

An end piece (E) for sealing one end of a trough (1), including an outer surface connectable to the outer trough surfaces (5, 6, 7) to form a transition portion leading to the trough mounting. Said end piece includes two portions, i.e. a first, sealing portion (A) for sealing the internal space of the trough (1), which first portion has a top (9) and a bottom (10) and is arrangeable on either the right or the left side of the trough (1), said first portion being movable between these two positions by rotation such that the positions of the top (9) and the bottom (10) are reversed; and a second, covering portion (B) attachable to the first portion (A), which second portion has a top (22) and a bottom (26) and may be moved from a right-mounted position to a left-mounted position by rotation about an axis substantially parallel to the top/bottom direction, without reversing the respective positions of the top (22) and the bottom (26). Combining said portions (A, B) renders the end piece (E) reversible.

Description

Terminal for guide groove of electric conductors

Technical field

The invention relates to a terminal for a guide groove of electric conductors intended to close an end of a groove fixed to a substrate, in particular a wall or vertical wall, the outer surface of the terminal being adapted to engage with the groove surface to provide a transition to the groove fastening substrate.

Such a terminal is intended to protect the end of the groove from impacts and in particular to protect persons against electric current passing through the conductors in the groove. Otherwise, the two functions are combined to prevent foreign bodies (fibers, pins, screwdrivers), especially conductive foreign bodies, from being clogged after the line has been impacted. In addition, this terminal provides an aesthetic function, in particular a harmonious transition between the outer surface of the groove and the fastening substrate.

BACKGROUND OF THE INVENTION

Typically, the terminals are formed by components fixed to the groove profiles by various means, such as gluing, clamping insertion, a metal tooth penetrating the plastic material of the groove and the terminals, screwed onto the groove.

Since the terminal must provide both groove blocking function and aesthetic function at the same time, this leads to sometimes contradictory requirements. To date, it is specifically necessary to have two types of endings, one for mounting on the left and the other on the right end of the groove.

The object of the invention is, in particular, to find a terminal which can better satisfy the requirements of the gardening and aesthetic function and which can be mounted on the left and right ends.

It is also an object of the invention to provide a terminal which is economical to manufacture and which is simple and quick to assemble.

SUMMARY OF THE INVENTION

According to the invention, the terminal defined above for the guide groove of the electric conductors consists of two parts, i.

- a first closing part for closing the interior of the groove, the part having a apex and a base and can be mounted without distinction to the right or left end of the groove, the transition from one mounting position to the other being achieved by rotating this first part .

- a second cover portion adapted to be fastened to the first portion and to provide a connection to the outer surface of the groove, the second portion having a head and a heel and may pass from the mounting position to the right to the mounting position to the left by pivoting about an axis substantially parallel to the head heel, without changing the relative positions of the head and heel, and thanks to the combination of the two parts the ending is reversible.

Rotating the first base-to-apex position generally is half a turn, while the second part to move from the mounting position to the left to the mounting position to the right is a quarter of a turn.

The terminal, when installed, typically has an upper edge different from the lower edge; According to the invention, the top and base of the first end cap portion have the same shape, while the head and the foot of the second cap portion have different shapes adapted to the shape of the top and bottom edges.

Preferably, the cover portion is comprised between two planes forming an angle of at least 90 ° therebetween, and the outer surface thereof is a cylindrical surface sector, closed at the top by a section of the convex surface forming the head and opened at the bottom at the heel.

The top edge of the groove has a generally cylindrical shape, with horizontal forming lines, if the terminal is in place, with a cross-section of a circular arc shape; the head of the end cap portion is formed by a convex cap comprised between the surfaces of at least a straight diera, the cap having a apex intended to be placed against the groove fastening base.

The closure portion comprises a face forming a groove closure and a wall perpendicular to the face forming a straight diedr therein, the cavity of which is intended to pivot toward the exterior of the groove, the outer surface of which wall being planar to be positioned against the groove fastening base while wherein the outer face of the forehead is provided with protruding feet, in particular with elongated holes, for fixing the end piece; these protruding feet are generally inserted into the interior space of the groove.

The whole and the wall forming the diedr are preferably connected by ribs having a central plane perpendicular to the edge of the diedra and located in the cavity of the diedra.

The face of the closure part is preferably provided with centering and guiding feet for mounting, which are provided in particular adjacent the top and base and in the middle of the face.

Both parts of the terminal, i. cover and closure, are provided with associated fasteners to secure the cover part to the closure part.

These connecting means may comprise at least one cylindrical sector convex outwardly of the closure portion, located in the cavity of the direct diera, the central portion of which is adapted in the form of a connecting tongue, while the cover portion comprises inside a bead of concave shape associated with the shape of the sector for a latching connection with this sector.

The coupling means provided on the closure part are arranged symmetrically with respect to the center of this part, so that in the mounting position to the right or left the coupling means assume the same position in the vertical direction.

Preferably, the stiffening ribs of the closure portion are provided at half the height of the cylindrical sector or sectors constituting the coupling means for the closure portion.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described with reference to a specific exemplary embodiment and with reference to the accompanying drawings. However, the example described does not limit the scope of the invention.

Fig. 1 is a perspective view of the groove and end of the invention during assembly to the right end of the groove.

Fig. 2 is a perspective view of the groove and end of FIG. 1 at a different angle.

Fig. 3 is a front perspective view of the closure portion of the terminal.

Fig. 4 is a rear perspective view of the closure portion of FIG. Third

Fig. 5 is a rear perspective view of the end cap portion.

Fig. 6 is a partial vertical cross-sectional view of the closure and cap portions at the level of the associated fasteners.

Fig. 7 is analogous to FIG. 6, both parts being shown assembled.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1 and 2, a groove 1 for conducting electrical conductors not shown in the drawing can be seen. This groove 1 has a guide bottom 2 which has a rearwardly facing wall for vertical mounting on the wall and forwardly parallel horizontal grooves forming tracks 3 for conductors or electric cables. The cross-section of the guide tracks 3 is substantially U-shaped, open upwards, the wall of the bottom 2 forming one branch thereof. The guide tracks 3 may be spaced at different heights depending on the type of groove X; the number of tracks 3 may vary according to the type of groove. In the example shown, two tracks 3 are provided. The upper track, located substantially halfway up the groove height, is provided above the longitudinal cross-section 4 of the rectangular cross-section, closed from all sides and extending only at its longitudinal ends. This passageway 4 is located at half the height of the bottom 2.

The groove 7 is further provided with a cover 5 adapted to be snap-fastened to the lower and upper longitudinal edges of the bottom 2. If the groove is located in a vertical plane relative to the wall (wall) and if the cover 5 is also fitted, it is upper or lower. the lower edge of the groove formed by the upper edge 6, respectively. the lower edge 7 of the cover 5. The upper edge 6 has a different shape from the lower edge 7; in the example shown, the upper edge 6 is formed by a portion of the cylindrical surface with horizontal lines forming, when the cover 5 is fitted, with a cross-section of a curvilinear curve whose convexity is turned outwards; of course, any other shape, such as a prism shape, is possible. The vertical flat wall < 3 provides a connection between the upper edge 6 and the lower edge 7, located in a horizontal plane with a right angle to the wall 8.

In FIG. 1 and 2, the groove X has a reduced length in the horizontal direction for purposes of illustration. It is clear that the groove X is generally much longer in length than shown in the figures.

The closure of the groove X at its ends, in particular at the right end of FIG. 1 and 2, is secured by a terminal E comprising two parts A and B.

The first or closing part A is intended to close the inner space of the groove. This part A is preferably adapted for use on several differently slotted bottom groove models.

This first part A has a top 9 and a base 10 and can be mounted without distinction to the right or left end of the groove χ. The transition from one mounting position to the other is achieved by rotating this part A at which the positions of the apex 9 and the base 10 are exchanged; in other words, as shown in the figures, this is a half-turn (180 °) rotation about a horizontal axis perpendicular to the wall of the groove bottom 2 and located at half height of part A.

part A has a face 11 forming a closure guide for the groove 7 and preventing foreign bodies from penetrating. This face 11 is formed by a flat wall whose contour substantially corresponds to the inner contour of the cover 5. However, while the lower edge 7 of the cover 5 has a different shape from the lower edge 6, the base 10 of the face 11 has the same curvilinear shape as the apex 9 the shape corresponds to the inner surface of the upper edge 6 of the cover 5. Thus, it is possible to provide a relatively precise closure in the area of the groove 1 in the area where access to the electrical conductors is possible. Conversely, in the lower part of the housing 5, although there remains a relatively large clearance between the base 10 and the lower edge 7 of the housing, this problem is not practical since it is practically not possible to reach the conductors from below, since they lie in the cable tracks 3 closed in the lower part.

The face 11, the thickness of which may be relatively small, does not provide too much traction during impact. It is provided with protruding feet 12, 12 'of a horizontal central direction perpendicular to the plane of the face 11. In the present example, two feet 12, 12' are provided, but their number may vary. The feet 12, 12 'are formed symmetrically with respect to the center of part A to find a relatively equal position for both right and left mounting. These feet 12, 12 'have a vertical central plane and are reinforced with horizontal ribs forming supports 13 between the face 11 and the associated foot. The heels 12, 12 'are provided in the central region with elongated holes 14 for fixing to the wall (wall) by means of screws which also pass through the guide bottom 2.

The centering feet 15, 15 'are provided adjacent to the base respectively. at the top of the face 11 and cooperate with recesses 16, 16 'formed by grooves of a certain type provided on the rear surface of the bottom to ensure proper placement of the part A and cooperation on its connection with the bottom 2. associated with the passage section 4 and intended to be inserted into the passage. The whole of the protrusion S and the feet 15, 15 'are adapted in the same way to maintain the same arrangement with respect to the groove 1 when mounting part A to the right and left.

The face ϋ is releasably connected to the wall 17 forming a straight diedr 18 with it (see Figs. 3 and 4), the cavity of which is intended to be turned outward. The outer surface of the wall 17, as seen in FIG. 4, is planar to be positioned against a wall on which the groove L is attached. It should be noted that the plane of the feet 12, 12 'is displaced forward relative to the wall 17 while the feet 15, 15 'have the same central plane as the wall 17.

The second or cover portion B of the terminal E is adapted to be fastened to the first portion A and to provide a connection to the outer surface of the groove, i. with outer housing surface 5 ..

This second part B consists essentially of a cylindrical surface sector 19 (FIG. 2), the generating lines of which are vertical when this part is located at the end of the groove 1 fixed to the wall. The section of the sector 19 in a plane perpendicular to the forming lines is formed by an arc with a circumference slightly greater than 90 °. The sector 19 is limited by two vertical edges 20, 21, the rear surfaces of which form the overlapping zones R, R 'seen in FIG. 5. The vertical edge 20 of the groove-side sector 19 abuts and overlaps the end of the vertical wall 8, while the second vertical edge 21 of the groove 19 is supported by a wall on which the groove 7 is fixed.

Part B comprises a head 22 formed by a convex cap defined by the outline of a curvilinear triangle contained between the surfaces of the diedra, slightly more open than the direct diedr. The edge 23 of the head 22, facing the groove 1, covers the end of the upper part 6 of the cover 5. The second edge 24 of the head 22 rests on the fastening wall of the groove 1. The head 22 is terminated by an apex 25 resting on the wall. The overlapping zones R, R 'are preferably extended to the level of the edges 23, 24 so that the edge 23 slightly overlaps the adjacent edge of the cover part 6.

Part B comprises a heel 26 whose shape is different from the head 22. As shown in FIG. 5, the heel 26 has free space limited by the lower cross-section of sector 19.

It will be appreciated that this portion B can be mounted on both the right and left grooves, with the transition from the right position shown in FIG. 1 and 2, to the left, is rotated by a quarter of a turn (90 °) about a vertical axis substantially parallel to the direction of the head 22 / heel 26. The edge 23, which is in the right position in contact with the end of the top edge 6 of the groove in the left position, it rests on the wall to which the groove is fixed, while the rim 24 rests on the upper left edge of the groove.

The mating connection means 27, 28 (FIG. 6) are provided on both parts A and B to secure their attachment, preferably by placing part B downwards on part A.

The coupling means 27 on the part A are arranged to occupy a relatively equal position with respect to the groove 1 in the assembly on the right and left on the piece A. In the present case, the two coupling means 27 are provided symmetrically with respect to the median horizontal plane of the part A in such a way that during the overturning of part A, the upper and lower fasteners 27 are exchanged. In addition, each fastener 27 is symmetrical with respect to the central horizontal plane.

Each connecting means 27 comprises two tongues 29 symmetrical to the reinforcing rib 30, the central plane of which is perpendicular to the edge of the diedra 18. Two rectangular openings 31 are provided in the wall 17 from both sides of the rib 30, mainly to facilitate molding. The inner end of the tongues 29, spaced from the rib 30, is provided with a hook 32. The tongues 29 anchored on the rib 30 exhibit some flexural flexibility; are symmetrical to the plane of the decaying diedr 18.

Preferably, the tongues 29 are defined in the cylindrical sector 33, joining the end edges of the face 11 and the wall 17, with vertical slits 34 on either side of the tongue 29. The rib 30 is located at half the height of the sector 33.

The cylindrical sectors 33 have a radius of curvature such that when the part B is inserted into place it corresponds to its inner surface.

The coupling means 28 of the part B comprises at least one shoe 35 formed by pressing with the part B having a certain elasticity and curved downwards, as shown in the drawings. The shoe 35 has a concave shape corresponding to the shape of the shoe 29 and the sector 33, so that it fits into the inner surface of the sector 33. The shoe 35 has a rectangular opening 36 whose large sides are located in a plane perpendicular to the generating lines. they fit into the openings 36 with a certain angular freedom, facilitating fit. The lower end of the shoe 35, as shown in FIG. 6, it is slightly curved on the side opposite to sector 19 to facilitate placement on the foot 29.

In the present case, two coupling means 28, associated with two coupling means 27, are provided within the respective parts B in the respective positions.

The parts A and B are preferably made of plastic and molded in one piece.

Thus, the foregoing explanation shows the use and location of the terminal E of the invention.

For mounting on the right, fig. 1 and 2, the part A is placed at the end of the groove by inserting the feet 15, 15 'into the centering recesses 16, 16' and the projection S into the recess 4. If the centering is correct, secure the part A to the wall (wall) with a screw 14th

Then, part B is mounted from top to bottom on Part A in such a way as to ensure that the beads 35 are caught on the hooks 32 of the tongues 29.

Once the part B is in place, its outer surfaces 19 and 22 will join with the outer surfaces of the groove and ensure that the groove is closed aesthetically.

The ribs 30 ensure the rigidity of the whole of the face 11 and the wall 17 and thus prevent the face 11 from deviating from the end of the groove upon impact.

In addition, Part B aesthetically assures the role of buffers and, thanks to the overlap zone R, R ', it also provides security in terms of object penetration.

The top-down fastening direction was chosen because it is advantageous with respect to the trajectory of impacts that occurs in the case of a skirting board.

The mounting of the terminal E according to the invention on the left end of the groove 1 is carried out as follows. Part A is rotated half a turn about a horizontal axis passing at half height by replacing the positions of the apex 9 and the base 10 and thus the feet 15, 15 'and 12, 12'. The part A is inserted into the groove and fastened as above.

The part B is rotated a quarter of a turn about the vertical axis by replacing the position of the edges 23 and 24 of the head 22 which lies at the top. Part B is then fitted and secured to part A from top to bottom.

The terminal E according to the invention is thus double-sided, i.e. it fits equally well for the right and left ends. It allows to combine the closing function provided by Part A and the aesthetic and impact resistance provided by Part B.

Claims (10)

A terminal for a guide groove (1) of electric conductors, intended to close an end of a groove (1) mounted on a substrate, in particular a wall or vertical wall, the outer surface of said terminal being adapted to connect to groove surfaces (5, 6, 7) for ensuring the passage of the groove to the fastening substrate, characterized in that it comprises two parts (A, B), which are - a first closing part (A) for closing the interior of the groove (1), the first part (A) having a top (9) and a base (10) and can be mounted without discrimination on the right or left end of the groove (1), the transition from one mounting position to another is achieved by rotating this first part (A) with the change of the position of the top (9) and the base (10), - a second cover portion (B) adapted to be fastened to the first portion (A) and to engage the outer surface (5, 6) of the groove, the second portion having a head (22) and a heel (26) and may extend from the mounting position to the left to the mounting position by rotating about an axis substantially parallel to the head / heel direction, without changing the relative positions of the head (22) and the heel (26), and due to the combination of the two parts (A, B) . The end-piece according to claim 1, characterized in that the first cover portion (A) is adapted to move from the mounting position to the right to the mounting position to the left by rotating half a turn with changing the top and base positions while the second cover portion (B) is adapted to move from the mounting position to the right to the mounting position to the left by rotating a quarter of a revolution about said axis substantially parallel to the head / heel direction. End piece according to claim 1 or 2 for a groove, the upper edge (6) of which has a different shape from the lower edge (7), characterized in that the top (9) and the base (10) of the first closing part (A) have the same shape whereas the head (22) and the heel (26) of the second cover portion (B) have a different shape, adapted to the upper and lower portions respectively. the bottom edge of the groove. End piece according to one of the preceding claims, characterized in that the closing part (A) comprises a face (11) forming a closure and a wall (17) at right angles to this face (10) forming a direct diedr (18) therewith. ), the cavity of which is intended to rotate toward the exterior of the groove, the wall (17) having a planar outer surface for positioning against the groove fastening base, while the face (11) is provided with protruding feet (12, 12) opposite the wall (17). ') with elongate holes (14) for fixing the terminal. The end-piece according to claim 4, characterized in that the face (11) and the wall (17) forming the diedr (18) are connected by ribs (30) in the diedra cavity having a median plane perpendicular to the edge of the diedra. End piece according to any one of the preceding claims, characterized in that the cover part (B) has one wall in the form of a cylindrical sector (19) with vertical lines forming it when the part (B) is located on a wall-mounted groove, the section of the sector (19) perpendicular to the forming lines is formed by an arc with a circumference slightly greater than 90 °. An end-piece according to any one of the preceding claims for a groove, the upper edge (6) of which is cylindrical in shape, characterized in that the head (22) of the second part (B) is formed by a convex cap included between the surfaces of the diedra. , with an apex (25) to be placed against the wall, while the heel (26) contains free space. End piece according to any one of the preceding claims, characterized in that the closure part (A) and the cover part (B) comprise associated coupling means (27, 28) for securing the second part (B) to the first part (A). The end-piece according to claim 8, characterized in that the associated connection means (27, 28) are adapted to receive the cover part (B) from the top downwards on the closing part (A). The end-piece according to claim 8 or 9, characterized in that the connecting means (27) of the closure part (A) comprise at least one tongue (29) defined by slits (34) provided in the cylindrical sector (33) extending from one surface to the second in the cavity of the direct die (18), while the cover portion (B) has at least one foot (35) of concave shape inside it corresponding to the shape of the foot (29) and the cylindrical sector of the first portion (A) adapted to engage the hook (18). 32) of said tongue (29).