초록 ▼

A control cable conduit length adjustment device comprising an outer detent member connected to a conduit, an inner adjuster member extending into the detent member, the adjuster member having opposed sets of ratcheting teeth and the detent member having opposed detent pawls with teeth engaging the

A control cable conduit length adjustment device comprising an outer detent member connected to a conduit, an inner adjuster member extending into the detent member, the adjuster member having opposed sets of ratcheting teeth and the detent member having opposed detent pawls with teeth engaging the teeth on the adjuster member. The teeth on the adjuster member are offset longitudinally so that a smaller increment of adjustment is provided. A control cable extends through the conduit and the detent and adjuster members. Resetting of the device is achieved by rotating the detent member relative to the adjuster member to disengage the teeth on the pawls and adjuster member so that the members can be moved longitudinally relative to one another.

대표청구항 ▼

A self-adjusting control cable conduit length adjustment device comprising a tubular outer detent member defining an opening, an inner adjuster member extending into said opening of said detent member and guided thereby for longitudinal movement, a conduit connected to one end of said detent member,

A self-adjusting control cable conduit length adjustment device comprising a tubular outer detent member defining an opening, an inner adjuster member extending into said opening of said detent member and guided thereby for longitudinal movement, a conduit connected to one end of said detent member, and a control cable extending through the detent and adjuster member, said adjuster member having opposed sets of longitudinally spaced ratcheting teeth, said detent member having opposed radial openings, a set of opposed detent pawls mounted in said openings, said openings guiding said pawls for radial movement only with respect to said outer detent member, each pawl having an outer radial end and an inner radial end, a plurality of teeth on the inner end of each pawl complementary to and engaging a respective set of teeth on the adjuster member, said teeth on said detent member and said adjuster member being unsymmetrical in cross section so that a one-way ratcheting action is permitted of the adjuster member axially inwardly relative to the detent member, spring means engaging the outer ends of said pawls exteriorly of the detent member and yieldingly urging said pawls radially inwardly, such that when a predetermined force is applied on the inner adjuster member tending to force the adjuster member axially inwardly relative to the detent member, the pawls are caused to move radially outwardly and ratchet automatically so that the force moves the adjuster member axially inwardly relative to the detent member thereby shortening the effective length of the conduit, thus lengthening the inner member, said spring means yieldingly urging said pawls radially inwardly comprising at least one circumferentially extending arcuate spring surrounding the detent member and engaging the radially outer ends of said pawls, said spring being C-shaped with ends positioned circumferentially between said pawls, said detent member having means thereon for preventing said spring from rotating such that the engagement with the pawls is maintained and that substantially equal spring force is applied to each said pawl, said means on said detent member comprising a radial projection extending between the ends of said spring. A self-adjusting control cable conduit length adjustment device comprising a tubular outer detent member defining an opening, an inner adjuster member extending into said opening of said detent member and guided thereby for longitudinal movement, a conduit connected to one end of said detent member, and a control cable extending through the detent and adjuster member, said adjuster member having opposed sets of longitudinally spaced ratcheting teeth, said detent member having opposed radial openings, a set of opposed detent pawls mounted in said openings, said openings guiding said pawls for radial movement only with respect to said outer detent member, each pawl having an outer radial end and an inner radial end, a plurality of teeth on the inner end of each pawl complementary to and engaging a respective set of teeth on the adjuster member, said teeth on said detent member and said adjuster member being unsymmetrical in cross section so that a one-way ratcheting action is permitted of the adjuster member axially inwardly relative to the detent member, spring means engaging the outer ends of said pawls exteriorly of the detent member and yieldingly urging said pawls radially inwardly, such that when a predetermined force is applied on the inner adjuster member tending to force the adjuster member axially inwardly relative to the detent member, the pawls are caused to move radially outwardly and ratchet automatically so that the force moves the adjuster member axially inwardly relative to the detent member thereby shortening the effective length of the conduit and lengthening the effective length of the inner member, said adjuster member being rotatable relative to said detent member, circumferential portions of said adjuster member circumferentially between said sets of ratcheting teeth are smooth such that resetting of the device may be achieved by manually rotating the detent member relative to the adjuster member to cause the pawls to be moved radially outwardly and thereby disengage the teeth on the pawls from the teeth on the adjuster member and cause the teeth on the pawls to contact said smooth circumferential portions so that the detent and adjuster member can be moved longitudinally relative to one another after which the detent member and adjuster member may be rotated relative to one another to re-engage the teeth of the pawls and adjuster member, said adjustment member including radial tooth portions aligned circumferentially with said smooth portions for engaging said pawls to prevent inadvertent disassembly of the device when the adjustment member is moved axially outwardly relative to said detent member. A self-adjusting control cable conduit length adjustment device comprising a tubular outer detent member defining an opening, an inner adjuster member extending into said opening of said detent member and guided thereby for longitudinal movement, a conduit connected to one end of said detent member, and a control cable extending through the detent and adjuster member, said adjuster member having opposed sets of longitudinally spaced ratcheting teeth, said detent member having opposed radial openings, a set of opposed detent pawls mounted in said openings, said openings guiding said pawls for radial movement only with respect to said outer detent member, each pawl having an outer radial end and an inner radial end, a plurality of teeth on the inner end of each pawl complementary to and engaging a respective set of teeth on the adjuster member, said teeth on said detent member and said adjuster member being unsymmetrical in cross section so that a one-way ratcheting action is permitted of the adjuster member axially inwardly relative to the detent member, at least one circumferentially extending arcuate C-shaped spring having spaced ends surrounding the detent member and engaging the outer ends of said pawls exteriorly of the detent member and yieldingly urging said pawls radially inwardly into engagement with the respective set of teeth on the adjuster member, means between said C-shaped spring and said detent member for preventing rotation of said C-shaped spring relative to said detent member such that engagement is maintained between the spring and the pawls and substantially equal spring force is applied to each said pawl, such that when a predetermined force is applied on the inner adjuster member tending to force the adjuster member axially inwardly relative to the detent member, the pawls are caused to move radially outwardly and ratchet automatically so that the force moves the adjuster member axially inwardly relative to the detent member thereby shortening the effective length of the conduit and lengthening the effective length of the inner member.