CN220918118U - Squirrel electric toy - Google Patents

Squirrel electric toy Download PDF

Info

Publication number
CN220918118U
CN220918118U CN202322505084.1U CN202322505084U CN220918118U CN 220918118 U CN220918118 U CN 220918118U CN 202322505084 U CN202322505084 U CN 202322505084U CN 220918118 U CN220918118 U CN 220918118U
Authority
CN
China
Prior art keywords
gear
squirrel
tail
driving
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202322505084.1U
Other languages
Chinese (zh)
Inventor
孔瑞杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhoushan Cloud Toys Co ltd
Original Assignee
Zhoushan Cloud Toys Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhoushan Cloud Toys Co ltd filed Critical Zhoushan Cloud Toys Co ltd
Priority to CN202322505084.1U priority Critical patent/CN220918118U/en
Application granted granted Critical
Publication of CN220918118U publication Critical patent/CN220918118U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Toys (AREA)

Abstract

The utility model provides a squirrel electronic toy, includes imitates head, trunk portion, mouth, shank, the tail of squirrel appearance, head and trunk portion are the hollow structure that makes as an organic whole, the front end of head is provided with the breach, the mouth can rotationally connect on the head of breach position be provided with actuating mechanism in the trunk portion, actuating mechanism is connected with mouth, shank, tail transmission respectively, the tail is the flexible structure that can curl by actuating mechanism's stay cord pulling, actuating mechanism is used for driving the relative head swing of mouth, drives shank and is running form swing and drive tail coiling and relaxing cyclically. The utility model has the advantages that: the appearance of the squirrel is simulated, the actions of tooth meshing, leg moving and tail rolling are completed, the simulation effect is good, the common actions of the squirrel are displayed in situ in a living way, and the entertainment effect is enhanced.

Description

Squirrel electric toy
Technical Field
The utility model relates to the technical field of electric toy manufacturing, in particular to a squirrel electric toy.
Background
The prior Chinese patent with the application number of CN202221122560.0 entitled "toy for pulling a child squirrel) discloses a toy for pulling a child squirrel, which comprises a vehicle body and wheels, wherein the wheels are connected with the vehicle body through axles, a driving member is embedded in the vehicle body, the driving member can rotate relative to the vehicle body, an eccentric hole is formed in the driving member, and the axles simultaneously penetrate through the eccentric hole and are connected with the driving member. According to the technical scheme, when the tractor toy is played, the axle of the rolling wheels drives the driving component to eccentrically rotate, the outer wall of the driving component pushes the car body to move up and down along with running, and further jumping forward motions are visually generated, so that the states of animals in running and jumping are simulated, and the obtained interests of children in playing can be greatly improved. However, the squirrel toy needs to realize toy movement through wheels, which is far from the mode of movement of the squirrel in nature, and the entertainment effect is not ideal enough, so the structure of the squirrel toy needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the squirrel electric toy which can finish the actions of tooth meshing, crawling on the ground and tail winding and has good simulation effect.
The technical scheme adopted for solving the technical problems is as follows: this squirrel electronic toy, its characterized in that: including imitate the head, trunk portion, mouth, shank, the tail of squirrel appearance, head and trunk portion are the hollow structure that makes as an organic whole, the front end of head is provided with the breach, the mouth rotationally connects on the head of breach position be provided with actuating mechanism in the trunk portion, actuating mechanism is connected with mouth, shank, tail transmission respectively, the tail is the flexible structure that can be curled by actuating mechanism's stay cord pulling, actuating mechanism is used for driving the relative head swing of mouth, drives shank and is running form swing and drive tail coiling and relaxing cyclically.
As an improvement, a bracket may be preferably provided in the trunk portion, and the driving mechanism, the leg portion, and the tail portion are respectively connected to the bracket.
Further improved, the driving mechanism may preferably include a driving motor, a gear set, a first driving shaft and a first driving rod, the driving motor and the gear set are connected on the support, an output gear of the driving motor is meshed with the gear set, the driving motor forms a loop with a power source and a switch through a circuit, the power source and the switch are connected in a trunk part, the first driving shaft is connected with the gear set in a transmission mode, an eccentric section is arranged on the first driving shaft, one end of the first driving rod is connected with the eccentric section in a rotating mode, the other end of the first driving rod is connected with the rotation of the mouth, one end of the pull rope is fixed with the middle of the first driving rod, and the other end of the pull rope penetrates through a spacing ring distributed on the tail to be fixed with the tail end.
Further improved, the tail can be preferably injection molded resin strips, through holes which can increase the softness of the resin strips and reduce the weight of the resin strips are distributed on the resin strips at intervals, limiting rings are arranged on the surfaces of the resin strips corresponding to the through holes, and the end parts of the pull ropes are welded with the end parts of the tail.
Further improved, the driving mechanism may preferably further comprise a second driving rod, the second driving rod is rotatably connected to the top of the support, one end of the second driving rod is provided with a kidney-shaped hole, the kidney-shaped hole is sleeved on the eccentric section, the other end of the second driving rod is in contact with the sounder, and the sounder is clamped in the cavity between the top of the support and the inner wall of the trunk.
As a modification, the drive mechanism may preferably comprise a second drive shaft which is in driving connection with the leg, the second drive shaft being connected with the gear set.
Further, the gear set may preferably include a first gear, a second gear, a third gear, a fourth gear, a fifth gear, a sixth gear, and a seventh gear, the output gear is meshed with the first gear, the first gear is concentrically connected with the second gear, the second gear is meshed with the third gear and the fourth gear, separation structures capable of periodically approaching and separating the fourth gear relative to the third gear are provided on the third gear and the fourth gear, the fourth gear is concentrically fixed with the fifth gear, the sixth gear is concentrically fixed with the first driving shaft, the seventh gear is concentrically fixed with the second driving shaft, the fifth gear is meshed with the seventh gear when the fourth gear is far away from the third gear, and the fifth gear is meshed with the sixth gear when the fourth gear approaches the third gear.
Further, the separation structure may preferably have different numbers of teeth of the third gear and the fourth gear, a pointed protrusion is provided on a side wall of the third gear, a side wall through hole capable of being inserted into the pointed protrusion is provided on the fourth gear, the fifth gear is in contact with one end of the return spring, and the other end of the return spring is in contact with the inner wall of the bracket.
As an improvement, the bracket may preferably include an upper bracket body and a battery mounting box, the upper bracket body and the switch are both fixed on the battery mounting box, a convex column is provided at the top of the battery mounting box, and one end of the tail is connected to the convex column.
Further improved, a cloth cover imitating the shape of a squirrel can be preferably sleeved outside the integral structure consisting of the head part, the trunk part, the mouth part, the leg parts and the tail parts, cloth cover openings are formed in the cloth cover corresponding to the abdomen position of the squirrel, and the edges of the cloth cover openings are bonded with the bottom edges of the battery mounting boxes through glue.
Compared with the prior art, the utility model has the advantages that: the appearance of the squirrel is simulated, the movements of tooth meshing, leg moving and tail rolling can be completed, the simulation effect is good, the common movements of the squirrel are displayed in situ in a living way, and the entertainment effect is enhanced; all movements are realized by adopting a pure mechanical structure, the fault rate is low, the damage is not easy to occur, the service life is long, the driving mechanism is positioned in the trunk part, the appearance of a squirrel is not influenced, the appearance of the electric toy is natural, and the simulation effect is more lifelike.
Drawings
FIG. 1 is a perspective view of an embodiment of the present utility model;
FIG. 2 is an exploded view of the structure of FIG. 1;
FIG. 3 is a further exploded view of the structure of FIG. 2;
FIG. 4 is a perspective view of the head, torso, and sound generator of FIG. 3 with the head, torso, and sound generator removed;
FIG. 5 is an exploded view of the structure of FIG. 4;
FIG. 6 is a further exploded view of the leg of FIG. 5 with the leg removed;
fig. 7 is an exploded view of the structure of fig. 6 with the battery mounting case removed;
FIG. 8 is an exploded view of the non-exploded portion of FIG. 7;
FIG. 9 is a perspective view of the non-exploded portion of FIG. 8;
fig. 10 is an exploded view of the separation structure of fig. 9.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 10, the squirrel electric toy of the present embodiment includes a head 1, a trunk 2, a mouth 5, a leg 3, and a tail 4 imitating the shape of a squirrel, the head 1 and the trunk 2 are hollow structures integrally formed, a notch 11 is provided at the front end of the head 1, the mouth 5 is rotatably connected to the head 1 at the notch position, a driving mechanism is provided in the trunk 2, the driving mechanism is respectively in transmission connection with the mouth 5, the leg 3, and the tail 4, the tail 4 is a flexible structure capable of being pulled by a pull cord 41 of the driving mechanism to curl, and the driving mechanism is used for driving the mouth 5 to swing relative to the head 1, driving the leg 3 to swing relative to the trunk 2 in a running shape, and driving the tail 4 to cyclically wind and relax.
A bracket 6 is provided in the trunk 2, and the driving mechanism, the leg 3, and the tail 4 are respectively connected to the bracket 6.
The driving mechanism comprises a driving motor 7, a gear set, a first driving shaft 811 and a first driving rod 821, wherein the driving motor 7 and the gear set are connected to a bracket 6, an output gear 70 of the driving motor 7 is meshed with the gear set, the driving motor 7 forms a loop with a power supply and a switch through a circuit, the power supply and the switch are connected in the trunk part 2, the first driving shaft 811 is in transmission connection with the gear set, an eccentric section is arranged on the first driving shaft 811, one end of the first driving rod 821 is in rotation connection with the eccentric section, the other end of the first driving rod 821 is in rotation connection with a mouth 5, one end of a pull rope 41 is fixed with the middle of the first driving rod 821, and the other end of the pull rope 41 penetrates through a limiting ring 42 distributed at intervals on a tail 4 and is fixed with the tail end.
The tail 4 is an injection molded resin strip, through holes capable of increasing the softness of the resin strip and reducing the weight of the resin strip are distributed on the resin strip at intervals, a limiting ring 42 is arranged on the surface of the resin strip corresponding to each through hole, and the end part of the pull rope 41 is welded with the end part of the tail.
The driving mechanism further comprises a second driving rod 822, the second driving rod 822 is rotatably connected to the top of the support, a kidney-shaped hole is formed in one end of the second driving rod 822, the kidney-shaped hole is sleeved on the eccentric section, the other end of the second driving rod 822 is in contact with the sounder 9, and the sounder 9 is clamped in a cavity between the top of the support and the inner wall of the trunk. The specific structure of the sounder 9 is known in the art, and will not be described again because the sounder will make a sound when pressed by the second driving lever 822.
The drive mechanism comprises a second drive shaft 812, the second drive shaft 812 is in transmission connection with the leg 3, and the second drive shaft 812 is connected with a gear set.
The gear set comprises a first gear 81, a second gear 82, a third gear 83, a fourth gear 84, a fifth gear 85, a sixth gear 86 and a seventh gear 87, wherein the output gear 70 is meshed with the first gear 81, the first gear 81 is concentrically fixed on a first rotating shaft, the first rotating shaft is rotatably connected to the bracket 6, the first rotating shaft is concentrically connected with the second gear 82, the second gear 82 is meshed with the third gear 83 and the fourth gear 84, a separation structure capable of periodically approaching and separating the fourth gear 84 relative to the third gear 83 is arranged on the third gear 83 and the fourth gear 84, the fourth gear 84 is concentrically fixed with the fifth gear 85, the sixth gear 86 is concentrically fixed with the first driving shaft 811, the seventh gear 87 is concentrically fixed with the second driving shaft 812, the fifth gear 85 is meshed with the seventh gear 87 when the fourth gear 84 is far away from the third gear 83, and the fifth gear 85 is meshed with the sixth gear 86 when the fourth gear 84 approaches the third gear 83.
The separation structure is that the number of teeth of the third gear 83 is different from that of the fourth gear 84, a pointed protrusion 831 is provided on the side wall of the third gear 83, a side wall through hole 841 capable of inserting the pointed protrusion 831 is provided on the fourth gear 84, the fifth gear 85 is in contact with one end of the return spring 88, and the other end of the return spring 88 is in contact with the inner wall of the bracket. Thus, when the second gear 82 rotates, the pointed protrusion 831 and the side wall through hole 841 rotate relatively, so that when the pointed protrusion 831 is abutted against the side wall of the fourth gear 84, the fourth gear 84 and the third gear 83 are spaced farther apart, and when the pointed protrusion 831 is inserted into the side wall through hole 841, the fourth gear 84 and the third gear 83 are spaced closer apart, the fourth gear 84 and the fifth gear 85 are fixed on the second rotating shaft, the second rotating shaft is slidably inserted into the bracket 6, the end portion of the second rotating shaft can extend out of the outer wall of the bracket 6 from the through hole in the bracket 6, the return spring 88 is sleeved on the second rotating shaft, and the third gear 83 can be slidably sleeved on the second rotating shaft.
When the fourth gear 84 and the third gear 83 are closer together, the fifth gear 85 meshes with the sixth gear 86, thereby driving the mouth 5 to swing, the tail 4 to be cyclically wound and unwound, and the sound generator 7 to be pressed to generate sound, and when the fourth gear 84 and the third gear 83 are farther apart, the fifth gear 85 meshes with the seventh gear 87, and the leg 3 moves.
The support 6 comprises an upper frame body and a battery mounting box 60, the upper frame body and the switch are both fixed on the battery mounting box 60, a convex column 601 is arranged at the top of the battery mounting box 60, and one end of the tail 4 is connected to the convex column 601. The battery is installed in battery mounting box 60, and the wiring copper sheet is pegged graft in the battery mounting box and is put through with the battery, and the wiring copper sheet is put through with the switch through the circuit, and the switch is put through with actuating mechanism's driving motor 7 through the circuit.
Leg 3 includes a left front leg 31, a left rear leg 32, a left link 33, a right front leg 34, a right rear leg 35, and a right link 36. The two ends of the second driving shaft 812 are respectively provided with a bending section, so that when the second driving shaft 812 rotates, the two bending sections can eccentrically rotate respectively, the left end of the second driving shaft 812 is connected with the middle part of the left front leg 31 in a rotating way, a waist-shaped hole is formed in the upper part of the left front leg 31, a limiting convex column is arranged on the side wall of the bracket 6, the waist-shaped hole of the left front leg 31 is sleeved on the limiting convex column, a left connecting lug is arranged on the side wall of the middle part of the left front leg 31, one end of the left connecting rod 33 is connected with the rotation of the left connecting lug, the other end of the left connecting rod 33 is connected with the top end of the left rear leg 32 in a rotating way, and the middle part of the left rear leg 32 is connected with the rotation of the support boss 602 on the side wall of the battery mounting box 60. Similarly, the right end of the second driving shaft 812 is rotatably connected with the middle part of the right front leg 34, a kidney-shaped hole is also formed in the upper part of the right front leg 34, a limiting convex column is also formed in the side wall of the other side of the bracket 6, the kidney-shaped hole of the right front leg 34 is sleeved on the corresponding limiting convex column, a right connecting lug is arranged on the side wall of the middle part of the right front leg 34, one end of the right connecting rod 36 is rotatably connected with the right connecting lug, the other end of the right connecting rod 36 is rotatably connected with the top end of the right rear leg 35, and the middle part of the right rear leg 35 is rotatably connected with the other supporting boss 602 on the side wall of the other side of the battery mounting box 60, so that when the second driving shaft 812 rotates, the right front leg 34 is driven to swing, and the right front leg 34 drives the right rear leg 35 to swing through the right connecting rod 36.
The whole structure consisting of the head part 1, the trunk part 2, the mouth part 5, the leg parts 3 and the tail 4 is sleeved with a cloth cover imitating the appearance of a squirrel, a cloth cover opening is arranged on the cloth cover corresponding to the abdomen position of the squirrel, and the edge of the cloth cover opening is adhered with the bottom edge of the battery mounting box 60 through glue.
Working principle: the third gear 83 and the fourth gear 84 have different numbers of teeth, a pointed protrusion 831 is provided on a side wall of the third gear 83, a side wall through hole 841 capable of inserting the pointed protrusion 831 is provided on the fourth gear 84, the fifth gear 85 contacts with one end of the return spring 88, and the other end of the return spring 88 contacts with the inner wall of the bracket. Thus, when the second gear 82 rotates, the pointed protrusion 831 and the side wall through hole 841 relatively rotate, so that when the pointed protrusion 831 is abutted against the side wall of the fourth gear 84, the fourth gear 84 and the third gear 83 are farther apart, and when the pointed protrusion 831 is inserted into the side wall through hole 841, the fourth gear 84 and the third gear 83 are closer together, and when the fourth gear 84 and the third gear 83 are closer together, the fifth gear 85 meshes with the sixth gear 86, thereby driving the mouth 5 to swing, the tail 4 to cyclically wind and relax, and the sound generator 7 to generate sound, and when the fourth gear 84 and the third gear 83 are farther apart, the fifth gear 85 meshes with the seventh gear 87, and the leg 3 moves.

Claims (10)

1. An electronic toy of squirrel, its characterized in that: including imitate head (1), trunk portion (2), mouth (5), shank (3), tail (4) of squirrel appearance, head (1) and trunk portion (2) are the hollow structure that an organic whole was made, the front end of head (1) is provided with breach (11), mouth (5) rotationally connect on head (1) of breach position trunk portion (2) are provided with actuating mechanism, actuating mechanism is connected with mouth (5), shank (3), tail (4) transmission respectively, tail (4) are the flexible structure that can be pulled and curled by actuating mechanism's stay cord (41), actuating mechanism is used for driving the relative head (1) swing of mouth (5), drives shank (3) and is running form swing and drive tail (4) and convolute and loosen with the circulation.
2. The squirrel cage electric toy of claim 1, wherein: a bracket (6) is arranged in the trunk part (2), and the driving mechanism, the leg part (3) and the tail (4) are respectively connected to the bracket (6).
3. The squirrel electric toy of claim 2, wherein: the driving mechanism comprises a driving motor (7), a gear set, a first driving shaft (811) and a first driving rod (821), wherein the driving motor (7) and the gear set are connected to a bracket (6), an output gear (70) of the driving motor (7) is meshed with the gear set, the driving motor (7) forms a loop with a power supply and a switch through a circuit, the power supply and the switch are connected in a trunk part (2), the first driving shaft (811) is connected with the gear set in a transmission mode, an eccentric section is arranged on the first driving shaft (811), one end of the first driving rod (821) is connected with the eccentric section in a rotating mode, the other end of the first driving rod (821) is connected with a mouth part (5) in a rotating mode, one end of a pull rope (41) is fixed with the middle of the first driving rod (821), and the other end of the pull rope (41) penetrates through a limit ring (42) which is distributed at intervals on a tail (4) to be fixed with the tail end.
4. A squirrel electric toy according to claim 3, wherein: the tail (4) is an injection molded resin strip, through holes capable of increasing the softness of the resin strip and reducing the weight of the resin strip are distributed on the resin strip at intervals, limiting rings (42) are arranged on the surface of the resin strip corresponding to each through hole, and the end parts of the pull ropes (41) are welded with the end parts of the tail.
5. A squirrel electric toy according to claim 3, wherein: the driving mechanism further comprises a second driving rod (822), the second driving rod (822) is rotatably connected to the top of the support, a kidney-shaped hole is formed in one end of the second driving rod (822), the kidney-shaped hole is sleeved on the eccentric section, the other end of the second driving rod (822) is in contact with the sounder (9) in a propping mode, and the sounder (9) is clamped in a cavity between the top of the support and the inner wall of the trunk.
6. The squirrel electric toy of any one of claims 3 to 5, wherein: the driving mechanism comprises a second driving shaft (812), the second driving shaft (812) is in transmission connection with the leg (3), and the second driving shaft (812) is connected with the gear set.
7. The squirrel cage electric toy of claim 6, wherein: the gear set comprises a first gear (81), a second gear (82), a third gear (83), a fourth gear (84), a fifth gear (85), a sixth gear (86) and a seventh gear (87), wherein the output gear (70) is meshed with the first gear (81), the first gear (81) is concentrically connected with the second gear (82), the second gear (82) is meshed with the third gear (83) and the fourth gear (84), a separation structure capable of periodically approaching and separating the fourth gear (84) relative to the third gear (83) is arranged on the third gear (83) and the fourth gear (84), the fourth gear (84) is concentrically fixed with the fifth gear (85), the sixth gear (86) is concentrically fixed with the first driving shaft (811), the seventh gear (87) is concentrically fixed with the second driving shaft (812), when the fourth gear (84) is far away from the third gear (83), the fifth gear (85) is meshed with the seventh gear (87), and when the fourth gear (84) is close to the third gear (83), the fifth gear (84) is meshed with the sixth gear (85).
8. The squirrel cage electric toy of claim 7, wherein: the separating structure is that the number of teeth of the third gear (83) is different from that of the fourth gear (84), a pointed bulge (831) is arranged on the side wall of the third gear (83), a side wall through hole (841) capable of being inserted into the pointed bulge (831) is arranged on the fourth gear (84), one end of a fifth gear (85) is propped against one end of a return spring (88), and the other end of the return spring (88) is propped against the inner wall of the bracket.
9. The squirrel electric toy according to any one of claims 2 to 5, wherein: the support (6) comprises an upper support body and a battery mounting box (60), wherein the upper support body and the switch are both fixed on the battery mounting box (60), a convex column (601) is arranged at the top of the battery mounting box (60), and one end of the tail (4) is connected to the convex column (601).
10. The squirrel cage electric toy of claim 9, wherein: the whole structure composed of the head (1), the trunk (2), the mouth (5), the leg (3) and the tail (4) is sleeved with a cloth cover simulating the appearance of a squirrel, a cloth cover opening is formed in the cloth cover corresponding to the abdomen position of the squirrel, and the edge of the cloth cover opening is bonded with the bottom edge of a battery mounting box (60) through glue.
CN202322505084.1U 2023-09-09 2023-09-09 Squirrel electric toy Active CN220918118U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322505084.1U CN220918118U (en) 2023-09-09 2023-09-09 Squirrel electric toy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322505084.1U CN220918118U (en) 2023-09-09 2023-09-09 Squirrel electric toy

Publications (1)

Publication Number Publication Date
CN220918118U true CN220918118U (en) 2024-05-10

Family

ID=90935011

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322505084.1U Active CN220918118U (en) 2023-09-09 2023-09-09 Squirrel electric toy

Country Status (1)

Country Link
CN (1) CN220918118U (en)

Similar Documents

Publication Publication Date Title
EP1642629B1 (en) Toy animal with simulated respiration
WO2000021626A1 (en) Walking device
CN220918118U (en) Squirrel electric toy
CN201632054U (en) Fun electric toy helicopter
CN201482169U (en) Amusing animal toy
CN213609800U (en) Electric toy dancing cat
CN213768960U (en) Mechanical bird
CN215691621U (en) Electric toy dog
CN207126114U (en) Intelligence climbs baby
CN2254766Y (en) Electric four legs walking animal toy
CN218392224U (en) Electric toy for animals
CN219701065U (en) Arm extension structure of electric dancing doll
CN201613024U (en) Mechanism for imitating action of singing singer
CN217593803U (en) Dinosaur-imitating walking toy
CN201710971U (en) Toy mechanism for simulating movement of hands, tail, body and head of animal
CN219701064U (en) Arm swing structure of electric dancing doll
US4245427A (en) Toy vehicle with noisemaker
CN205323220U (en) Become body dinosaur toy tank
CN210751263U (en) Tortoise-rabbit race toy car
CN219701062U (en) Head swinging structure of electric dancing doll
CN220546569U (en) Electric toy for simulating poultry
CN2194205Y (en) Electric animal toy and doll with stepping wheel-plate
CN2855487Y (en) Electric walking and wing swinging device and structure electric two feet walking toy
CN218306134U (en) Limb movement mechanism and doll
CN210448111U (en) Children toy room with flight function

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant