United States Patent [191 [11] 4,261,221 Koba ashi [45] AP r. 14, 1981 [54] CONTROL'CABLE POSITIONING DEVICE [75] Inventor: 4,175,450 Tetuo Kobayashi, Ikeda, Japan _ Attorney, A ent, or Firm-Armstron , Nikaido, lvlmmelstei‘lg1 & Kubovcik [21] Appl. No.: 26,315 [57] _ [22] g éBSTRACT A control cable positloning device including a screw Flled: Apr- 2’ 1979 member secured to an end of an inner cable which is Foreign Application Priority Data Feb, 14, 1979 [JP] disposed slidably within the control cable and having a screw surface formed at a part of the peripheral surface Japan ................................ .. 54-18680 [51] Int. Cl.3 .............................................. .. F16C 1/10 [52] US. Cl. .............................. .. 74/501 R; 74/501 P; [58] Field of Search ....................... .. 74/501 R, 501 P; thereof; an outer ?tting having an inner surface capable of engaging to the peripheral surface of the screw mem ber, a partially cutaway portion and a projection ex tending downward and capable of bending; and a heli 403/195; 411/262 cal spring so wound as to clamp the peripheral surface and having pawls at both ends thereof extending out 285/81, 92; 403/194, 195, 197; 85/32 CS; ward, each pawl being capable of abutting to the re spective side surface of the cutaway portion, whereby 151/14 CS [56] Bennett ............................ .. 74/501 P Primary Examiner~Kenneth Dormer , [73] Ass1gnee: 1:115:11)? Cable System, Inc., Hyogo, [30] 11/ 1979 References Cited U.S, PATENT DOCUMENTS 900,589 10/1908 3,587,341 6/1971 Fiddler 3,645,150 2/1972 Crossland .... .. 3,916,723 11/1975 the length of the inner cable projecting from the con duit can be controlled since the end of the conduit of the control cable is controllable when the projection is Ratcliffe .......................... .. 85/32 CS . . . . . .. Hawtree et a1. ......... .. . . . . . . . .. bent. 74/501 . 74/501 P 4 Claims, 5 Drawing Figures 74/ 501 R 111 I0 I, | ~ I 41,261,221“, 2 1 . CONTROL CABLE POSITIONING DEVICE ‘ , 'The'drive means including a pedal or a lever is con nected to other end of the inner cable 3. In general, a return spring (not shown). which maybe mounted to the BACKGROUND OF THE INVENTION ' driven ineans provides an=external force to return the The present invention relates to a novel positioning device for a control cable, and more particularly to a device for positioning controllably an end of a conduit for a control cable in order to keep constant the length of an inner cable projecting from the end of the conduit. The present invention also relates to a positioning de vice which functions as a member for connecting the end of the inner cable to various driven means with controlling the length of the inner cable, when the end pullin’g'force'of the. inner cable 3 given by the drive means fror'n'the direction of A to the direction B. As‘ shown in FIG. 2,~ the outer ‘?tting 10 is secured onto the peripheral surface 5 of the screw member 4 through an inner surface 9 having a screw thread. The out'e'r'?ttin'g 10 is formed with a cutaway portion 11 including side surfaces 12 and 13 and a projection 14 capable of bending in the direction of E in the cutaway portion. I ' I ' ' One device of this type as is known in they art is so constructed that a positioning nut is screwed to anend Numeral 15Vis a ?ange abutting to ‘the engagement plate 7; Numeral 16 is a pair of pawls extending through the engagement plate 7 and engaged thereto with their of a conduit or an inner cable and further, in order to enlarged portions. of the conduit is ?xed. - . ' I . _ prevent the looseness of the positioning nut due to A helical spring 17 is mounted on the peripheral swing, an additional nut for clamping is provided. The thus constructed devicehas a fatal disadvantage that when the additional nut isloosened, the positioning nut is also loosened, which results in difficulty in precise operation of a driven means due to changing position of surface 5 of the screw member 4 at the position relative to the cutaway portion 11 and has two pawls 18, 19 bent outwardfThe pawls 18, 19 are so positioned as to abut to the side surfaces 12, 13. Further, as shown in FIG. 4, the end of the conduit or the inner cable. OBJECTS OF THE INVENTION It is an object of the present invention to provide a novel positioning device for a control cable in which an end of an inner cable or a conduit is positioned control lably and the ?xed position thereof is never changed, by which precise operation of driven means can be estab lished. Other objects of the invention will become apparent from the following description given with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway front view showing an the projection 14 can be positioned at a middle point between the pawls 18, 19 when bent in the direction of 25 - The1v advantages and _ operations of the positioning device‘ of the present invention will be explained below. Referring to FIG. 3, when the outer fitting 10 is forced to rotate in the direction of C relative to the screw member 4, the side surface 13 of the cutaway portion 11 pushes the pawl 19 into the direction of C thus tightening the helical spring 17 which results in preventing the helical spring 17 and the outer ?tting 10 from rotating in the direction of C. Further, when the outer ?tting 10 is forced to rotate in the direction of D, the side surface 12 pushes the pawl 18 into the direction FIG. 2 is a sectional view taken on line II—II of FIG. of D thus tightening the helical spring 17 which results in preventing the helical spring 17 and the outer ?tting 10 from rotating in the direction of D. Thus, the deter mined length of the inner cable from the outer ?tting 10 FIG. 3 is a sectional view taken on line III—III of to the end fitting 6 is maintained constant, since the outer ?tting 10 is not moved in the directions of A and embodiment of the present invention; 1; FIG. 1; B relative to the screw member 4. Therefore, the driven FIG. 4 is a view showing the operation of the em 45 means can be operated precisely. Referring to FIGS. 2 and 4, when the projection 14 is bodiment of FIG. 1 when a projection of an outer fitting bent to the direction of E and the outer ?tting 10 is is bent downward; and rotated in the direction of C or D relative to the screw FIG. 5 is a partially cutaway front view showing member 4, the helical spring 17 is so pushed as to be another embodiment of the invention. 50 loosened thus rotating the helical spring 17 and the DETAILED DESCRIPTION outer ?tting 10 freely in the direction of C or D. There FIGS. 1 to 4 show an embodiment of the invention. fore, the outer ?tting 10 can be moved in the direction of A or B shown in FIG. 1, by which the length of the Referring to FIG. 1, numerals l and 2 designate a con inner cable 3 from the outer ?tting 10 to the end ?tting trol cable and a conduit, respectively, while numeral 3 designates an inner cable slidably disposed within the 55 6 can be controlled freely. Therefore, the driven means can be operated precisely and stably. conduit 2. A screw member 4 is secured to the end of In the embodiment shown in FIGS. 1 to 4, in case of the conduit 2, a part of the peripheral surface 5 thereof being a screw surface. pulling operation only, the pawl 16 is free and the flange One end of the inner cable 3 extends through a bore 15 abuts to the engagement plate 15 since the outer 4a formed in the screw member 4 into a driven means such as a clutch or an accelerator and is engaged thereto ?tting 10 is never separated from the engagement plate by an end ?tting 6 made of metal. The length from an outer ?tting 10 abutted to or engaged to a ?xed engagement plate 7 to the end ?tting 7 in the direction of A in FIG. 1. Referring now to the embodiment of FIG. 5, wherein the numerals are identical with those in the correspond ing parts shown in FIGS. 1 to 4, a screw member 4 is 6 must be maintained constant in order to ensure precise 65 secured to the end of an inner cable 3 and an outer operation of the driven means by a drive means (not shown). The engagement plate 7 is ?xed through a bore 8 to the outer ?tting 10. fitting 10 is engaged to the engagement plate 7 of a lever 20 as a driven means, and the end of a conduit 2 is ?xed by means of a cap 21 to a panel 22. The advantages and 4,261,221 3 operations of the embodiment are substantially, the same as the embodiment shown in FIGS.,1 to 4. ' , ends thereof extending outward, each pawl being capa v In the embodiment shown in FIG. 5, the engagement plate 7 may be provided with a tapered bore8a, and further in order not to prevent the engagement plate 7 from rotating in the direction of F or G, an abutting surface 150 of the ?ange 15 and a engagement surface 160 of the pawls 16 may be curved. . u ble of abutting to' the respective 'side surface of the cutaway portion, and the projection of the outer ?tting being positioned between the pawls when bending. 2. The ‘positioning device of claim 1, wherein the outer fitting is provided at one end thereof with at least one pair of pawls for engagement with a support. 3. A positioning device for a control cable which _. It is to be understood that the invention is not limited in its application to the details of constructionan'd ar rangement of parts set forth in the above general de scription or illustrated in the accompanying drawings since the invention is capable of other embodiment and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology or terminol comprises a screw member secured to an end of a con duit having an inner cable which is disposed slidably within the conduit, at least a part of the peripheral sur face thereof being a screw surface; an outer ?tting hav ing an inner surface capable of engaging to the periph eial surface of the screw member, a partially cutaway portion, and a projection extending downward and ogy employed herein is for the purpose of description and not limitation. 4 surface of the screw member and having pawls at both capable of bending; and a helical spring so wound as to - What is claimed is: l. A positioning device for a control cable which clamp the peripheral surface of the screw member and comprises a screw member secured to an end of an inner 20 each pawl being capable of abutting to the respective cable which is disposed slidably within the control ca ble, at least a part of the peripheral surface thereof being side surface of the cutaway portion, and the projection of the outer ?tting being positioned between the pawls a screw surface; an outer ?tting having an inner surface when bending. having pawls at both ends thereof extending outward, capable of engaging to the peripheral surface of the 4. The positioning device of claim 3 wherein the screw member, a partially cutaway portion, and a pro 25 ‘outer ?tting is provided at one end thereof with at least jection extending downward and capable of bending; one pair of pawls for engagement with a support. and a helical spring so wound as to clamp the peripheral 30 35 45 55 65
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