Camming device stem
One embodiment of the present invention relates to an active camming device including a head member, a set of cam lobes, a connection system, and a retraction system. The cam lobes are configured to rotate between a retracted state and a spring biased extended state. The connection system includes a lengthwise cable coupled to the terminal. The retraction system is uniquely configured to enable selective engagement of the retracted state of the cam lobes with respect to the cam head. The retraction system includes slidably externally coupling a trigger and retraction sleeve to the cam lobes over the cable. A set of independent sleeves are also slidably coupled to the cable over the retraction sleeve between the trigger and cam lobes. The independent sleeves may be conically shaped and oriented to adjacently internest with one another so as to protect the retraction sleeve during operation of the refraction system.
1. An active camming device comprising:
a head member comprising a terminal and an axle;
a plurality of cam lobes rotatably coupled to the axle, wherein the plurality of cam lobes are rotatable between an extended state and a retracted state with respect to the axle, and wherein the cam lobes are spring biased toward the extended state;
a connection system configured to fixably intercouple the terminal with a cable, wherein the cable includes a connection point disposed on a lengthwise end opposite the terminal;
a retraction system configured to selectively engage the retracted state, wherein the retraction system includes fixably coupling the plurality of cam lobes with a retraction sleeve and a trigger, and wherein the retraction sleeve and trigger are slidably externally coupled to the cable; and
wherein the retraction system includes a plurality of independent sleeves slidably externally coupled to the cable between the plurality of cam lobes and the trigger, and wherein the plurality of independent sleeves are slidable and external with respect to the retraction sleeve, and wherein the plurality of independent sleeves substantially externally cover the retraction sleeve.
2. The system of claim 1 , wherein the plurality of independent sleeves include an at least partially conically shaped external surface, an at least partially conically shaped internal recess, and wherein the plurality of independent sleeves are oriented in an adjacently internested configuration with respect to one another.
3. The system of claim 1 , wherein the plurality of independent sleeves include a conically shaped internal recess with an internal large and small end, and wherein the plurality of independent sleeves are oriented in an adjacently internested configuration including orienting the internal large end of each of the independent sleeves adjacent to the internal small end of the adjacent independent sleeve.
4. The system of claim 3 , wherein the plurality of independent sleeves include an external conically shaped surface.
5. The system of claim 4 , wherein the external conically shaped surface of each of the independent sleeves includes an external large and small end, and wherein the external large end is oriented with the internal large end.
6. The system of claim 4 , wherein the external conically shaped surface includes a cylindrically shaped region and a conically shaped region, and wherein the cylindrically shaped region includes the external large end and the internal large end.
7. The system of claim 5 , wherein the external small end of the external conically shaped surface corresponds to the internal large end of the internal conically shaped recess in a male-female relation.
8. The system of claim 2 , wherein the adjacently internested configuration of the plurality of independent sleeves includes lengthwise overlapping the independent sleeves by at least 5%.
9. The system of claim 2 , wherein the adjacently internested configuration of the plurality of independent sleeves includes lengthwise overlapping the adjacent independent sleeves so as to maintain overlapping at an adjacent sleeve lengthwise orientation angle up to 45 degrees.
10. The system of claim 2 , wherein the adjacently internested configuration of the plurality of independent sleeves includes a ball and socket coupling including a partially spherically shaped external surface on one end of each sleeve internested within a partially spherical recess within an adjacent independent sleeve.
11. The system of claim 2 , wherein the plurality of independent sleeves are substantially frictionless with respect to the retraction sleeve.
12. The system of claim 11 , wherein the plurality of independent sleeves, retraction sleeve, and cable are lengthwise bendable across a plurality of angles.
13. The system of claim 11 , wherein the plurality of independent sleeves are translatably substantially frictionless with respect to the retraction sleeve and the cable across the plurality of angles.
14. A method for retracting the cam lobes of an active camming device comprising the acts of:
providing an active camming device comprising:
a head member comprising a terminal and an axle;
a plurality of cam lobes rotatably coupled to the axle, wherein the plurality of cam lobes are rotatable between an extended state and a retracted state with respect to the axle, and wherein the cam lobes are spring biased toward the extended state;
a connection system configured to fixably intercouple the terminal with a cable, wherein the cable includes a connection point disposed on a lengthwise end opposite the terminal;
fixably coupling the plurality of cam lobes with a retraction sleeve and a trigger;
slidably externally coupling the retraction sleeve and trigger to the cable;
slidably externally coupling a plurality of independent sleeves to the cable between the trigger and plurality of cam lobes and configuring the plurality of independent sleeves to slidably couple over the retraction sleeve, wherein the plurality of independent sleeves each include an at least partial conical external surface and an at least partial conical internal recess;
orienting the plurality of independent sleeves such that a narrower external side of each of the plurality of independent sleeves is adjacent to the wider internal recess side of the adjacent independent sleeve;
translating the trigger away from the head member with respect to the cable causing the retraction sleeve to translate with respect to the cable; and
rotating the plurality of cam lobes from the extended state to the retracted state.
15. The method of claim 14 , wherein the act of slidably externally coupling a plurality of independent sleeves to the cable includes configuring the plurality of independent sleeves to substantially cover the retraction sleeve.
16. The method of claim 14 , wherein the act of slidably externally coupling a plurality of independent sleeves to the cable includes configuring the plurality of independent sleeves to adjacently internest with one another.
17. The method of claim 16 , wherein configuring the plurality of independent sleeves to adjacently internest with one another includes adjacently orienting a conically small lengthwise end with a conically large lengthwise end of the each of the plurality of independent sleeves.
18. The method of claim 16 , wherein configuring the plurality of independent sleeves to adjacently internest with one another includes overlapping adjacent sleeves at least 5%.
19. The method of claim 16 , wherein configuring the plurality of independent sleeves to adjacently internest with one another includes overlapping at an adjacent sleeve lengthwise orientation angle up to 45 degrees.
20. The method of claim 16 , wherein configuring the plurality of independent sleeves to adjacently internest with one another includes a ball and socket configuration including a partially spherically shaped external surface on one end of each sleeve internested within a partially spherical recess within an adjacent independent sleeve.