Patent EA-000511-B1 (EA)
Title: Activation pin
Inventor: VAN DER BLOM NICOLAAS
IPC: B60S5/04
Filed: 1997-05-14
Abstract: 1. An activating pin for a valve connector for connecting to inflation valves comprising a housing to be connected to a pressure source, within the housing a coupling hole having a central axis and an inner diameter approximately corresponding to the outer diameter of the inflation valve to which the valve connector is co be connected, a cylinder and means for conducting gaseous media between the cylinder and the pressure source, and which activating pin is arranged for engaging with a central spring-force operated valve lever of the inflation valve is arranged to be situated within the housing in continuation of the coupling hole coaxially with the central axis thereof and comprises a piston part (121, 122, 131, 222, 223, 301, 302, 306, 307, 309, 318, 338, 406, 407, 408, 409, 414, 420, 531, 532, 541, 553, 651, 652, 662, 663, 701) with a piston, which piston is to be positioned in the cylinder movably between a first piston position and a second piston position, characterized by the fad that the activating pin further comprises a valve part (126, 126a, 225, 227, 231, 238, 304, 306, 315, 316, 317, 322, 401, 414, 534, 535, 542 544, 550, 654, 661, 664, 702), the piston part (121, 122, 131, 222, 223, 301, 302, 306, 307, 309, 318, 338, 406, 407, 408, 409, 414, 420, 531, 532, 541, 553, 651, 652, 662, 663, 701) comprises within it a channel (123, 124, 127, 128, 224,234, 242, 244, 247, 303, 310, 311, 321, 324, 325, 410, 416, 417, 418, 419, 422, 423, 533, 536, 537, 546, 653, 656, 657, 666, 705), the cross-section of said channel is at least one part of said piston part consisting of sectors, wherein in each sector the distance between the center point, of the channel cross-section and the outermost limiting surface of the channel is larger than the corresponding distance measured along the line separating the sector from and adjacent sector, and said valve part (126, 126a, 225, 227, 231,238, 304, 306, 315, 316, 317, 322, 401, 414, 534, 535, 542, 544, 550, 654, 661, 664, 702) is positioned movably with respect to said piston part (121, 122, 131, 222, 223, 301, 302, 306, 307, 309, 318, 338, 406, 407, 408, 409, 414, 420, 531, 532, 541, 553, 651, 652, 662, 663, 701) between a first valve position and a second valve position for enabling the conduction or gaseous and/or liquid media through said channel when said valve part is in said first valve position, and - inhibiting the conduction of gaseous and/or liquid media through said channel when said valve part is in said second valve position. 2. An activating pin according to Claim 1, characterized by the fact that said piston part (121, 122) comprises a first end and a second end, wherein the piston (121) is located at said first end, and said channel (123, 124) comprises a first blind drilling (123) in the longitudinal direction of said piston part (121) at the first end of said piston pan (121), a first radial drilling (124) connecting the blind end of said blind drilling (123) to a first orifice at the surface of said piston pan (121, 122); and said valve part (126) is an elastic member arranged to leave open said first orifice in said first valve position and to close said first orifice in said second valve position. 3. An activating pin according to Claim 2, characterized by the fact that said channel (127, 128) comprises a second blind drilling (128) in the longitudinal direction of said piston part (121, 122) at the second end of said piston pan (121, 122) and a second radial drilling (127) connecting the blind end of said second blind drilling (128) to a second orifice at the surface of said piston part (121, 122). 4. An activating pin according to Claim 2, characterized by the fact that the angle α between the axis (125) of said first blind drilling (123) and the axis of said first radial drilling (124) is larger than or equal to 90 degree . 5. An activating pin according to Claim 3, characterized by the fact that the angle β between the axis (125) of said second blind drilling (128) and the axis of said second radial drilling (127) is larger than or equal to 90 degree . 6. An activating pin according to Claim 2, characterized by the fact that at least one of said first blind drilling (123) and said second blind drilling (128) has a larger cross section area at its open end than at its blind end. 7. An activating pin according to Claim 1, characterized by the fact that - said piston part (407, 409, 420) comprises a first end and a second end, wherein the piston (407) is located at said first end and said channel (303, 418) has an opening at said first end and said valve part (401) is arranged to rotate around a rotational axis (404) mounted at said first end perpendicularly to the longitudinal axis (403) of said piston part (407, 409, 420); wherein said first valve position corresponds to said valve part (401) being rotated around said rotational axis (404) to a position where it leaves open said opening, and said second valve position corresponds to said valve part (401) being rotated around said rotational axis (403) to a position where it closes said opening. 8. An activating pin according to Claim 7, characterized by the fact that it comprises means (402) for driving said valve part (401) into said first valve position when the piston is in the first piston position. 9. An activating pin according to Claim 7, characterized by the fact that said channel (303) comprises a drilling in the longitudinal direction of said piston part (407, 409, 420) said drilling having a larger cross section area at least one open end than in the middle point between its open ends. 10. An activating pin according to Claim 1, characterized by the fact that said valve part (225, 227, 302, 304, 322, 353, 534, 544, 654, 661, 702) is arranged to move in respect of said piston part (222, 223, 301, 302, 531, 532, 553, 651, 652, 701) in the longitudinal direction of said piston part (222, 223, 301, 302, 531, 532,553, 651, 652, 701). 11. An activating pin according to Claim 10, characterized by the fact that said piston part (222, 223) comprises a first end and a second end, wherein the piston (222) is located at said first end said channel (224, 248) comprises a first channel portion (224) and a second channel portion (248), both in the longitudinal direction of said piston part (222, 223) and connected to each other at a transition point and said valve part (225, 227) comprises a valve rod (227) arranged to move within said first channel portion (224) and having a free end (228); wherein said first valve position corresponds to said valve part (225, 227) being moved in the longitudinal direction of said piston part (222, 223) to a position where the free end (228) of said valve rod (227) leaves open the transition point between said first channel portion (224) and said second channel portion (248), and said second valve position corresponds to said valve part (225, 227) being moved in the longitudinal direction of said piston part (222, 223) to a position where the free end (228) of said valve rod (227) closes the transition point between said first channel portion (224) and said second channel portion (248). 12. An activating pin according to Claim 1, characterized by the fact that at least one end of said first channel portion (224) and said second channel portion (248) has a larger cross section area at its other end than at its next end to said transition point. 13. An activating pin according to Claim 11, characterized by the fact that it comprises stopping means (231) to limit the movement of said valve part (227) in the longitudinal direction of said piston part (223). 14. An activating pin according to Claim 10, characterized by the fact that. said piston part (301, 302) comprises a first end and a second end, wherein the piston (301) is located at said first end said channel (303, 310, 311, 321, 324) comprises a drilling (303) extending from said first end (310) to said second end (311), the opening of said drilling at said first end being circular, and said valve part (304, 322, 316, 353) comprises a valve rod (322) with a channel (321) positioned in the longitudinal direction of said valve pan (304, 322, 316, 353), said valve rod (322) arranged to move within said drilling (303,310) and a cylindrical valve sealing (306) at one end of said valve rod (322), the axis (337) of said cylindrical valve sealing (306) being in the longitudinal direction of said piston part (304, 322, 316, 353), said drilling (303, 310) and said valve rod (322), and the outer diameter of said valve sealing (306) being larger than the diameter of the circular opening of said drilling (310) at said first end; wherein said first valve position corresponds to said valve part (304, 322, 316, 353) being moved in the longitudinal direction of said piston part (301, 302) to a position where said valve sealing (306) leaves open the circular opening of said drilling (303, 310) at said first end, and said second valve position corresponds to said valve part (304, 322, 316, 353) being moved in the longitudinal direction of said piston part (301, 302) to a position where said valve cap closes the circular opening of said drilling (303,311) at said first end. 15. An activating pin according to Claim 14, characterized by the fact that it comprises means (305, 350) for driving said valve part (304, 322, 336, 353) into said first valve position when the piston (301) is in the first piston position. 16. An activating pin according to Claim 10, characterized by the fact that said piston part (531, 532, 651, 652, 701) comprises a first end and a second end, wherein the piston (531, 651) is located at said first end, said channel (533, 536, 537, 653, 656, 657, 666) comprises a drilling (533, 653) extending from said first end to said second end, wherein at a predetermined point between said first end and said second end said drilling has a circular cross section and forms a tint sealing surface (536, 659, 703), a