A wall climbing toy includes a frame body, a drive shaft, a plurality of spring-loaded release valves, a cam shaft, a drive unit, a left gear train, a shaft extension, a plurality of primary crank arms, a plurality of connecting rods, a plurality of suction cups, and a plurality of air tube units. W
A wall climbing toy includes a frame body, a drive shaft, a plurality of spring-loaded release valves, a cam shaft, a drive unit, a left gear train, a shaft extension, a plurality of primary crank arms, a plurality of connecting rods, a plurality of suction cups, and a plurality of air tube units. When each of the spring-loaded release valves is displaced from a seal position to an open position, an air seal formed between a corresponding one of the suction cups and a flat surface is broken. When the drive shaft is driven concurrently with the cam shaft to rotate, the air seals formed between the suction cups and the flat surface are broken alternately so as to permit the connecting rods to be alternately pulled away from a flat surface.
대표청구항▼
1. A wall climbing toy comprising: a frame body extending in a longitudinal direction and having a left side frame and a right side frame opposite to said left side frame in a direction transverse to the longitudinal direction;a left drive shaft disposed rotatably on said left side frame;a primary p
1. A wall climbing toy comprising: a frame body extending in a longitudinal direction and having a left side frame and a right side frame opposite to said left side frame in a direction transverse to the longitudinal direction;a left drive shaft disposed rotatably on said left side frame;a primary post disposed on said frame body and having a first inlet duct and a second inlet duct;a first spring-loaded release valve and a second spring-loaded release valve which are located in said first and second inlet ducts of said primary post, respectively, each of said first and second spring-loaded release valves being biased to a seal position and being displaceable to an open position;a cam shaft disposed rotatably on said frame body and configured such that when said cam shaft is rotated, said first and second spring-loaded release valves are alternately displaced from the seal position to the open position;a drive unit disposed in said frame body and configured to drive said left drive shaft and said cam shaft;a left gear train disposed on said left side frame and coupled to be driven by said left drive shaft, said left gear train having a first output shaft which is rotatably mounted on said left side frame and which has a first left end;a first shaft extension extending from said first output shaft and through said right side frame to terminate at a first right end;a pair of first primary crank arms each having a crank region mounted on a corresponding one of said first left end and said first right end so as to permit each of said first primary crank arms to be rotated with said first output shaft, anda connecting region disposed radially offset from a first shaft axis of said first output shaft;a pair of first connecting rods each having a lower segment and an upper segment which is opposite to said lower segment in an upright direction transverse to both of the longitudinal and transverse directions, and which is pivotally coupled to said connecting region of a corresponding one of said first primary crank arms;a pair of first suction cups each having a non-deformable cap defining an air hole, and mounted to said lower segment of a corresponding one of said first connecting rods, anda deformable cup body defining an interior cavity which is in fluid communication with said air hole such that when the deformable cup body is deformed to abut against a flat surface, a corresponding one of said first suction cups forms an air seal with the flat surface; anda pair of first air tube units each configured to permit a corresponding one of said first and second inlet ducts of said primary post to be in fluid communication with said interior cavity of a corresponding one of said first suction cups such that when each of said first and second spring-loaded release valves is displaced to the open position, the air seal formed between the corresponding one of said first suction cups and the flat surface is broken, and such that when said left drive shaft is driven concurrently with said cam shaft to rotate, the air seals formed between said first suction cups and the flat surface are broken alternately so as to permit said first connecting rods to be alternately pulled away from the flat surface. 2. The wall climbing toy according to claim 1, wherein: said frame body has a front end and a rear end opposite to said front end in the longitudinal direction;each of said left side frame and said right side frame has a forward region, a rearward region opposite to said forward region in the longitudinal direction, and a mid region disposed between said forward and rearward regions, said left drive shaft being disposed rotatably on said mid region of said left side frame; andsaid cam shaft has an upper cam surface and a lower cam surface which are configured such that when said cam shaft is driven to rotate, said first and second spring-loaded release valves are displaced from the seal position to the open position by said upper and lower cam surfaces, respectively, said wall climbing toy further comprising:a right drive shaft which is disposed rotatably on said mid region of said right side frame, and which is coupled to be driven by said drive unit;a secondary post which is disposed on said frame body and which is spaced apart from said primary post in the longitudinal direction, said secondary post having a first inlet duct and a second inlet duct, said cam shaft being disposed between said primary and secondary posts, said primary and secondary posts being proximate to said rear and front ends, respectively;a third spring-loaded release valve and a fourth spring-loaded release valve which are located in said first and second inlet ducts of said secondary post, respectively, each of said third and fourth spring-loaded release valves being biased to a seal position and being displaceable to an open position by a corresponding one of said upper and lower cam surfaces such that when said cam shaft is rotated, said third and fourth spring-loaded release valves are alternately displaced from the seal position to the open position;a right gear train disposed on said right side frame and coupled to be driven by said right drive shaft, said right gear train having a second output shaft which is rotatably mounted on said right side frame and which has a second right end;a second shaft extension extending from said second output shaft and through said left side frame to terminate at a second left end;a pair of second primary crank arms each having a crank region mounted on a corresponding one of said second right end and said second left end, so as to permit each of said second primary crank arms to be rotated with said second output shaft, anda connecting region disposed radially offset from a second shaft axis of said second output shaft;a pair of second connecting rods each having a lower segment and an upper segment which is opposite to said lower segment in the upright direction, and which is pivotally coupled to said connecting region of a corresponding one of said second primary crank arms;a pair of second suction cups each having a non-deformable cap defining an air hole, and mounted to said lower segment of a corresponding one of said second connecting rods, anda deformable cup body defining an interior cavity which is in fluid communication with said air hole such that when said deformable cup body is deformed to abut against the flat surface, a corresponding one of said second suction cups forms an air seal with the flat surface; anda pair of second air tube units each configured to permit a corresponding one of said first and second inlet ducts of said secondary post to be in fluid communication with said interior cavity of a corresponding one of said first suction cups such that when each of said third and fourth spring-loaded release valves is displaced to the open position, the air seal formed between the corresponding one of said first suction cups and the flat surface is broken, and such that when said right drive shaft is driven concurrently with said cam shaft to rotate, the air seals formed between said second suction cups and the flat surface are broken alternately so as to permit said second connecting rods to be alternately pulled away from the flat surface. 3. The wall climbing toy according to claim 2, wherein: said first connecting rods serve as a rear left leg and a rear right leg of said wall climbing toy, respectively, and said second connecting rods serve as a front right leg and a front left leg of said wall climbing toy, respectively; said left gear train is disposed on said rearward region of said left side frame and said right gear train is disposed on said forward region of said right side frame;said first suction cups are rear left and rear right suction cups, respectively, and said second suction cups are front right and front left suction cups, respectively;said first and second inlet ducts of each of said primary and secondary posts are spaced apart from each other in the upright direction; andsaid first and second air tube units are grouped as a leftward pair of said air tube units disposed to permit said first inlet ducts or said second inlet ducts of said primary and secondary posts to be respectively in fluid communication with said interior cavities of said rear left and front left suction cups, anda rightward pair of said air tube units disposed to permit said second inlet ducts or said first inlet ducts of said primary and secondary posts to be respectively in fluid communication with said interior cavities of said rear right and front right suction cups. 4. The wall climbing toy according to claim 3, wherein each of said air tube units includes a first air tube and a second air tube, said wall climbing toy further comprising: a pair of left bellows pumps each disposed to be in fluid communication with said first and second air tubes of a corresponding one of said leftward pair of said air tube units;a left cam member which is coupled to said left drive shaft so as to rotate therewith, and which is interposed between said left bellows pumps, said left cam member being configured to alternately actuate said left bellows pumps when said left cam member is driven to rotate, thereby permitting a drawing force and a blowing force of each of said left bellows pumps to be alternately applied to a corresponding one of said interior cavities of said rear left and front left suction cups;a pair of right bellows pumps each disposed to be in fluid communication with said first and second air tubes of a corresponding one of said rightward pair of said air tube units; anda right cam member which is coupled to said right drive shaft so as to rotate therewith, and which is interposed between said right bellows pumps, said right cam member being configured to alternately actuate said right bellows pumps when said right cam member is driven to rotate, thereby permitting a drawing force and a blowing force of each of said right bellows pumps to be alternately applied to a corresponding one of said interior cavities of said rear right and front right suction cups. 5. The wall climbing toy according to claim 2, further comprising four edge pressing members each of which includes a plurality of radial ribs extending from said non-deformable cap of a corresponding one of said first and second suction cups to terminate at a plurality of contact ends that are to be brought to abut against a marginal edge of said deformable cup body of the corresponding one of said first and second suction cups so as to ensure the air seal formed between the corresponding one of said first and second suction cups and the flat surface along said marginal edge. 6. The wall climbing toy according to claim 5, wherein each of said edge pressing members further includes a plurality of curved ribs interconnecting said contact ends. 7. The wall climbing toy according to claim 2, wherein the first shaft axis of said first output shaft is parallel to and spaced apart from the second shaft axis of said second output shaft. 8. The wall climbing toy according to claim 7, wherein: said left gear train further has a third output shaft which is mounted rotatably on said left side frame and which has a third left end, said third output shaft being rotatable about a third shaft axis which is parallel to and spaced apart from the first shaft axis; andsaid right gear train further has a fourth output shaft which is mounted rotatably on said right side frame and which has a fourth right end, said fourth output shaft being rotatable about a fourth shaft axis which is parallel to and spaced apart from said second shaft axis, said wall climbing toy further comprising:a third shaft extension extending from said third output shaft and through said right side frame to terminate at a third right end;a fourth shaft extension extending from said fourth output shaft and through said left side frame to terminate at a fourth left end; andfour auxiliary crank arms each having a crank region mounted on a corresponding one of said third left end, said third right end, said fourth left end, and said fourth right end, so as to permit each of said auxiliary crank arms to be rotated with a corresponding one of said third and fourth output shafts, anda connecting region which is disposed radially offset from a corresponding one of the third and fourth shaft axes, and which is pivotally coupled to said lower segment of a corresponding one of said first and second connecting rods. 9. The wall climbing toy according to claim 8, further comprising: a right gear unit which is disposed on said right side frame, and which is coupled to both of said first and third shaft extensions so as to permit said first and third shaft extensions to rotate in the same direction; anda left gear unit which is disposed on said left side frame, and which is coupled to both of said second and fourth shaft extensions so as to permit said second and fourth shaft extensions to rotate in the same direction. 10. A wall climbing toy comprising: a frame body;a drive unit disposed in said frame body and including a motor;a first drive shaft and a second drive shaft which are disposed on said frame body and which extend in different directions, said first and second drive shafts being coupled to be driven by said motor to rotate simultaneously;a first module disposed on said frame body and coupled to be driven by said first drive shaft to rotate;a second module disposed on said frame body and coupled to be driven by said first module to rotate;a pair of first suction cups each having a deformable cup body defining an interior cavity, anda non-deformable body interconnecting said deformable cup body and a corresponding one of said first and second modules, said deformable cup body being configured such that when said deformable cup body is deformed to abut against a flat surface, a corresponding one of said first suction cups forms an air seal with the flat surface, and said non-deformable body of the corresponding one of said first suction cups abuts against the flat surface;a pump module which is disposed on said frame body and which includes a pair of first air tube units that are in fluid communication with said interior cavities of said first suction cups, respectively; anda valve module disposed on said frame body and coupled to be driven by said second drive shaft, said valve module being coupled to said first air tube units and being configured such that in response to rotation of said second drive shaft, the air seals formed between said first suction cups and the flat surface are broken alternately. 11. The wall climbing toy according to claim 10, wherein said non-deformable body has a non-deformable cap and an edge pressing member, said non-deformable cap interconnecting said deformable cup body and the corresponding one of said first and second modules, said edge pressing member having a plurality of radial ribs extending from said non-deformable cap to terminate at a plurality of contact ends that are to be brought to abut against the flat surface and a marginal edge of said deformable cup body of the corresponding one of said first suction cups. 12. The wall climbing toy according to claim 10, further comprising: a third drive shaft disposed on said frame body and extending opposite to said first drive shaft, said third drive shaft being coupled to be driven by said motor to rotate simultaneously with said first and second drive shafts;a third module disposed on said frame body and coupled to be driven by said third drive shaft to rotate;a fourth module disposed on said frame body and coupled to be driven by said third module to rotate; anda pair of second suction cups each having a deformable cup body defining an interior cavity, anda non-deformable cap interconnecting said deformable cup body and a corresponding one of said third and fourth modules, said deformable cup body of each of said second suction cups being configured such that when said deformable cup body of each of said second suction cups is deformed to abut against the flat surface, a corresponding one of said second suction cups forms an air seal with the flat surface, wherein:said pump module further includes a pair of second air tube units that are in fluid communication with said interior cavities of said second suction cups, respectively; andsaid valve module being further coupled to said second air tube units such that in response to the rotation of said second drive shaft, the air seals formed between said second suction cups and the flat surface are broken alternately. 13. The wall climbing toy according to claim 12, wherein: said first module includes a first gear train which is coupled to be driven by said first drive shaft, and which has a first output shaft and a third output shaft that are rotatably mounted on said frame body,a first output shaft extension which extends from said first output shaft,a third output shaft extension which extends from said third output shaft,a first leg which is coupled to one of said first suction cups, andtwo crank arms each coupling said first leg to a corresponding one of said first and third output shafts;said second module includes a second gear train which is coupled to be driven by said first and third shaft extensions,a second leg which is coupled to the other one of said first suction cups, andtwo crank arms each coupling said second leg to a corresponding one of said first and third output shaft extensions;said third module includes a third gear train which is coupled to be driven by said third drive shaft, and which has a second output shaft and a fourth output shaft that are rotatably mounted on said frame body,a second output shaft extension which extends from said second output shaft,a fourth output shaft extension which extends from said fourth output shaft,a third leg which is coupled to one of said second suction cups, andtwo crank arms each coupling said third leg to a corresponding one of said second and fourth output shafts; andsaid fourth module includes a fourth gear train which is coupled to be driven by said second and fourth shaft extensions,a fourth leg which is coupled to the other one of said second suction cups, andtwo crank arms each coupling said fourth leg to a corresponding one of said second and fourth output shaft extensions. 14. A suction cup for a wall climbing toy comprising: a non-deformable body; anda deformable cup body which is connected to said non-deformable body, and which is configured such that when said deformable cup body is deformed to abut against a flat surface, an air seal is formed between said deformable cup body and the flat surface, and said non-deformable body is brought to abut against the flat surface,wherein said deformable cup body defines an interior cavity, and said non-deformable body has a non-deformable cap and an edge pressing member, said non-deformable cap defining an air hole in fluid communication with said interior cavity, said edge pressing member including a plurality of radial ribs extending from said non-deformable cap to terminate at a plurality of contact ends that are to be brought to abut against the flat surface and a marginal edge of said deformable cup body. 15. The suction cup according to claim 14, wherein said edge pressing members further includes a plurality of curved ribs interconnecting said contact ends.
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이 특허에 인용된 특허 (9)
Pack Robert T. (Nashville TN) Iskarous Moenes Z. (Nashville TN) Kawamura Kazuhiko (Nashville TN), Climber robot.
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