MXPA96005077A - Rotary device of sliding and sa - Google Patents

Abstract

An accessory (26) to rotatably support a conduit (22) in a bulbous groove in a wall (20). The attachment (26) has a pair of spaced parallel flat parts (38, 40) defining a smaller dimension to slide in the narrow entry (14) to the circular seat (16) of the slot, and a larger larger circular dimension ( 36) to rotate to a locked position through the inlet (14) to prevent removal of the accessory (26) from the slot. A radial sheet acts as a stop (50) to prevent the rearward insertion of the fitting into the slot and to engage the edge of the inlet (14) in the locked position to prevent the retaining arm (46) from exceeding the detent recess. (1

Description

ROTARY DEVICE OF SLIDING. AND JUMPING TECHNICAL FIELD The present invention relates to remote control movement transmitter assemblies of the type for transmitting movement in a curved path by a flexible central transmitting movement element, and more specifically, to accessories for supporting such assemblies when they pass through a Support structure, such as a bulkhead or bracket. BACKGROUND OF THE INVENTION Remote control movement transmitter assemblies require support accessories for attachment to a support structure, such as a wall, bulkhead, bracket, or the like. One class of such accessories "known in the prior art has a pair of flanges for engaging a U-shaped groove in a wall, with an L-shaped arm having a protrusion for jumping into a hole or recess to retain the fitting in the wall. Examples of accessories belonging to this class are described in U.S. Patents 4,763,541 to Spease, 4,951,524 to Niskanen and 5,272,934 to Chegash and others, all assigned to the assignee of the present invention. Such assemblies work very well to support a conduit in a groove where the conduit is not likely to experience forces that could "eject" the conduit from the groove.DIGENTION OF THE INVENTION AND ADVANTAGES A transmitter-type remote-control transmitter of the type to transmit movement in a curved path by means of a flexible central element transmitter of movement while it is supported in a groove in the shape of a bulb that has an narrow rada and a wider seat and an adjacent retainer. The assembly includes a duct having a hole extending along its longitudinal axis to movably support the flexible central transmitting element of movement in the duct hole. An attachment is supported in the conduit and has a pair of spaced stops that extend radially to the conduit shaft to engage opposite faces of the wall defining the groove with a body portion disposed between the stops. The assembly is characterized in that the body portion has a smaller dimension transverse to the axis to traverse the narrow entrance of the groove, and a larger dimension transverse to the axis and the smaller dimension to extend through the wider seat of the groove in a position locked, to prevent the accessory from coming out of the groove without realignment of the smaller dimension with the narrow entry to the groove. Accordingly, the fitting can be inserted into the bulb-shaped slot into a seated position and rotated, preventing the larger dimension of the fitting from slipping out of the slot. BRIEF DESCRIPTION OF THE DRAWINGS Other advantages of the present invention will be readily appreciated as it is better understood by reference to the following detailed description considered in connection with the accompanying drawings wherein: Figure 1 is a perspective view of the accessory of the present invention without being mounted in the conduit. Figure 2 is a cross-sectional view of the accessory of Figure 1 during initial introduction into a bulb-shaped groove. Figure 3 is a fragmentary cross-sectional view taken substantially along 3-3 of Figure 2.

Figure 4 is a cross-sectional view similar to Figure 2, but showing the accessory in the seated position. Figure 5 is a cross-sectional view similar to Figures 2 and 4, but showing the accessory in the seated and locked position. Figure 6 is a cross-sectional view similar to Figure 2, but representing the accessory preventing it from being introduced in the wrong direction. And Figure 7 is a cross-sectional view taken substantially along line 7-7 of Figure 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT With reference to the figures, where analogous numbers refer to analogous or corresponding parts in all views, a remote control movement transmitter assembly is generally represented at 10 in Figure 7. The remote control movement transmitter assembly transmits movement in a curved path through a flexible central transmitting element 12, while supported in a bulbous slot having a narrow entry 14 and a wider seat 16 and an adjacent retainer or hole 18, in a wall, bracket, bulkhead, or the like The assembly includes a duct 22 having a hole extending along its longitudinal axis, the flexible central transmitting element 12 being supported movably in the duct hole. The conduit 22 is of the type known in the art which includes an internal tubular member made of plastic and surrounded by cable-shaped filaments arranged helically in a long cable and enclosed in an extruded plastic housing. The central element 12 is a solid wire or strand of filaments, as illustrated.

A sleeve 24 is fixed to the conduit 22 by being molded of organic polymeric material so as to be attached to the conduit, as is known in the art. An attachment, generally indicated at 26, is made of organic polymeric material and is supported in the conduit 22 by being rotatably supported in the sleeve 24. The sleeve 24 includes an annular rib 28 rotatably disposed in a complementary annular groove 30 in the fitting 26. The fitting 26 has a pair of spaced stops extending radially to the duct axis for engaging opposite faces of the wall 20, defining the slot formed by the inlet 14 and the seat 16. The stops are defined by generally circular inner flanges 32. and external 34, and the attachment 26 includes an axially extending body portion disposed between the flanges 32 and 34. The assembly 10 is characterized in that the body portion has a smaller dimension transverse to the axis of the conduit for traversing the narrow entrance 14. of the groove, and a larger dimension transverse to the shaft axis and the smaller dimension so that it extends through the seat more width 16 of the slot in a locked position, to prevent the fixture from slipping out of the groove without realignment of the minor dimension with the narrow entry to the slot. More specifically, the larger dimension is defined by a cylindrical surface 36 extending between the flanges 32 and 34, while the smaller surface is defined by parallel flat portions 38 and 40. The flat portions 38 and 40 are in sliding and guide engagement with the parallel edges 14 of the entrance to the slot during insertion into the seat 16. The accessory 26 includes a gripping projection 42 for engaging with the retainer 18 to prevent the embodiment of the parallel sides 38 and 40 defining the dimension smaller with narrow entry 14 to the slot. The gripping flange 42 enters axially in the space between the flanges 32 and 34. The outer flange 34 includes a slit 44 having a dog leg shape defining a cantilevered dog leg arm 46 supporting the grip protrusion 42 at its distal end, arm 46 being flexible around its connection to flange 34. Protrusion 42 has a ramp 48, as shown in figure 3, to rise above wall 20 and fall to retaining recess 18 when arm 46 flexes. A stop 50 is disposed between the flanges 32 and 34 and the grip protrusion 42 is spaced from the stop 50, circumferentially about the axis of the conduit, an angle so that the stop 50 engages the edges of the inlet 14 to the slot when the grip protrusion 42 engages retainer recess 18 to prevent grip protrusion 42 from exceeding seal recess 18, as is well illustrated in Figure 5. Stop 50 includes a sheet extending between internal 32 and external flanges 34, and one side of the sheet extends radially to the duct axis. In other words, the first side of the sheet, as well as its radial axis, is tangent to the axis of the duct. The fitting 26 also includes a cylindrical section 52 extending axially from the inner flange 32, and reinforcing sheets 54 and 56 that extend between the cylindrical section 52 and the inner flange 32. The reinforcing sheets 54 are rectangular, while the reinforcing sheets 56 are triangular and are disposed ninety degrees from the rectangular sheets 54. In case the installer inserts the fitting into the inlet 14 in the wrong direction, the stop 50 is combined with the larger dimension 36 to prevent the fitting enters the inlet 14, that is, the combined expansion of the stop 50 and the larger dimension 36 is greater than the width of the inlet 14 to the slot. On the other hand, when installed correctly, as shown sequentially in Figures 2, 4 and 5, respectively, the planar portions 38 and 40 that define the smallest dimension, they slide along the edges of the narrow entry 14, followed by the gripping projection which engages an edge of the inlet 14 when the stop 50 engages and slides along the opposite edge of the inlet 14. When the lower end 36 of the larger dimension engages the lower part of the bulb or circular seat 16, the accessory 26 is manually rotated around the sleeve 24 whereby the ramp 48 located at the end of the grip protrusion 42 rises above the edge of the inlet 14 flexing the arm 46 to thereby allow the projection 42 s ^ to slide over the surface of the wall 20 until it reaches the retainer recess 18, after which the elastic arm 46 again jumps to maintain the projection 42 in the detent recess 18. In this seated and locked position, the stop 50 limits the rotation of the attachment 26 by engaging the edge of the inlet 14, thus preventing the projection 42 from rising by the edge of the edge. remote from retainer recess 18 The access 26 is locked in the seat 16, because the larger dimension "<; ~ extends through the seat 16 which extends a width greater than the width of the inlet 14, avoiding by or O that the fitting comes out of the slot without the planar portions 38 and 40 realigning with the inlet. 14. The invention has been described in an illustrative manner, and it is to be understood that the terminology used has been descriptive rather than limitative. In fact, many modifications and variations of the invention are possible in the light of the preceding ideas. Therefore, it is to be understood that within the scope of the appended claims, where the reference numbers are only indicated for convenience and will not be in any way limiting, the invention may be implemented in a manner other than that described. specifically.

Claims (12)

1. CLAIMS 1. A remote control movement transmitter assembly (10) of the type for transmitting movement in a curved path by means of a central flexible movement transmitter element (12) while supported in a bulb-shaped slot having a narrow entrance ( 14) and a wider seat (16) and an adjacent retainer (18), said assembly including: a conduit (22) having a hole extending along its longitudinal axis, a flexible central element transmitter of movement ( 12) movably supported in said hole of said conduit (22), an accessory (26) supported on said conduit (22) and having a pair of spaced stops (32, 34) that extend radially to said shaft to engage opposite faces of the wall defining the slot, said accessory (26) including a body portion disposed between said stops (32, 34), characterized in said assembly because said body portion has a smaller dimension (38, 40) transversely. to said shaft to traverse the narrow entrance (14) of the groove, and a larger dimension (36) transverse to said axis and said smaller dimension (38, 40) to extend through the wider seat (16) of the groove in a locked position to prevent said accessory (20) from coming out of the slot without realignment of said minor dimension (38, 40) with the narrow entry (14) to the slot.
2. 2. An assembly as set forth in claim 1, including a gripping projection (42) for moving to engage with the detent (18) to prevent said realignment of said minor dimension (38, 40) with the narrow entry (14). ) to the slot.
3. An assembly as set forth in claim 2, wherein said accessory (26) is rotatably supported in said conduit (22) to rotate about said axis relative to said conduit (22).
4. 4. An assembly as set forth in claim 3, including a sleeve (24) attached to said conduit (22) and rotatably supporting said accessory (26).
5. 5. An assembly as set forth in claim 4, wherein said accessory (26) and said sleeve (24) are made of organic polymeric material.
6. 6. An assembly as set forth in claim 2, wherein said grip projection (42) axially enters the space between said stops (32, 34), and including a stop (50) disposed between said stops (32, 34). , said gripping projection (42) being spaced circumferentially around said axis, said stop (50) for engaging the edge of the inlet (14) to the seat (16) when said gripping projection (42) engages the retainer (18) to prevent said grip protrusion (42) from exceeding the retainer (18).
7. An assembly as set forth in claim 6, wherein said stops (32, 34) include generally circular flanges (32) and external (34), said outer flange (34) including a slit (44) defining a cantilevered arm (46) supporting said grip projection (42) at its distal end, said arm (46) being flexible and said projection (42) having a ramp (48) to rise above the wall and fall to the retainer (18) when said arm (46) is flexed.
8. An assembly as set forth in claim 7, wherein said larger dimension (36) is defined by a cylindrical surface (36) extending between said flanges (32, 34), and said minor surface is defined by parallel flat portions (38, 40), said flat parts (38, 40) being in sliding and guiding engagement with the entrance (14) to the seat (16) during insertion into the seat (16).
9. 9. An assembly as set forth in claim 8, wherein said slit (44) has the shape of a dog's foot.
10. 10. An assembly as set forth in claim 9, wherein said stop (50) includes a sheet extending between said flanges (32, 34).
11. 11. An assembly as set forth in claim 10, wherein one side of said sheet extends radially to said axis. An assembly as set forth in claim 11, wherein said accessory (26) includes a cylindrical section (52) extending axially from said inner flange (32), and reinforcing sheets (54, 56) extending between said cylindrical section (52) and said internal flange (32).