An electric cart apparatus includes a basket in which objects are to be held. A plurality of front and rear legs is erected downward from the basket. First ends of oblique links are coupled with the basket. Second ends of the oblique links are coupled with lower sections of the front legs. Each of t
An electric cart apparatus includes a basket in which objects are to be held. A plurality of front and rear legs is erected downward from the basket. First ends of oblique links are coupled with the basket. Second ends of the oblique links are coupled with lower sections of the front legs. Each of the oblique links is divided into an upper link and a lower link. The lower link has a sliding slot which extends in a lengthwise direction. The upper link has a link engagement portion which is to move along the sliding slot. First ends of auxiliary links are coupled with link coupling portions of the oblique links. Second ends of the auxiliary links are coupled with central portions of the rear legs. Wheels are coupled with lower ends of the front and rear legs.
대표청구항▼
1. An electric cart apparatus, comprising: a basket in which objects are to be held, wherein the basket comprises an inclined section on a lower edge of a rear portion, the inclined section being inclined inward and downward from a side surface of the basket at a predetermined angle;a plurality of f
1. An electric cart apparatus, comprising: a basket in which objects are to be held, wherein the basket comprises an inclined section on a lower edge of a rear portion, the inclined section being inclined inward and downward from a side surface of the basket at a predetermined angle;a plurality of front and rear legs which are erected downward from the basket;oblique links, wherein first ends of the oblique links are coupled with the basket and second ends of the oblique links are coupled with lower sections of the front legs, each of the oblique links being divided into an upper link and a lower link, the lower link having a sliding slot which extends in a lengthwise direction, and the upper link having a link engagement portion which is to move along the sliding slot;auxiliary links, wherein first ends of the auxiliary links are coupled with link coupling portions of the oblique links, and second ends of the auxiliary links are coupled with central portions of the rear legs; andwheels coupled with lower ends of the front and rear legs. 2. The electric cart apparatus according to claim 1, further comprising a handlebar provided on a rear portion of the basket. 3. The electric cart apparatus according to claim 1, wherein one end of each of the oblique links is coupled with a lower portion of the inclined section of the basket. 4. The electric cart apparatus according to claim 1, wherein the front legs are coupled with the front portions of the basket, thereby forming coupling portions between the basket and the front legs, and the front legs and the rear legs rotate about the coupling portions which act as the center of rotation when putting or taking the electric cart apparatus into or out of a car. 5. The electric cart apparatus according to claim 1, wherein each of the front and rear legs comprises a joint at a central portion thereof, wherein an upper leg of each of the front and rear legs is retracted into or withdrawn from a lower leg of each of the front and rear legs about the joint so that the basket is lifted or lowered about the joint so that a height of the basket is adjustable. 6. The electric cart apparatus according to claim 5, wherein each of the front and rear legs comprises an actuator such that the basket is lifted and lowered about the joint in response to an operation of the actuator so as to adjust the height of the basket. 7. The electric cart apparatus according to claim 1, wherein each of the rear legs comprises a joint at a central portion such that each of the rear legs is bendable at a predetermined angle in a predetermined direction. 8. The electric cart apparatus according to claim 1, further comprising reinforcement links provided on lower portions of the front and rear legs so as to form a shape of a quadrangle, four vertices of the quadrangle being positioned at the front and rear legs, respectively. 9. The electric cart apparatus according to claim 1, wherein the oblique links are disposed on both sides of the basket, the electric cart apparatus further comprising a support link which connects link engagement portions of the oblique links to each other in a transverse direction. 10. The electric cart apparatus according to claim 1, wherein the oblique links and the auxiliary links define a “Y” shape, an angle defined by the upper and lower links of each of the oblique links staying constant. 11. The electric cart apparatus according to claim 1, wherein the upper link of each of the oblique links has a first extension protruding downward, and each of the auxiliary links has a second extension protruding upward from a position that corresponds to the first extension, the first extension being capable of coupling with or decoupling from the second extension via a first stopper. 12. The electric cart apparatus according to claim 1, wherein the lower link of each of the oblique links has a first protrusion protruding upward, and the upper link of each of the oblique links has a second protrusion protruding downward, the first protrusion being capable of coupling with or decoupling from the second protrusion via a second stopper. 13. The electric cart apparatus according to claim 1, wherein the wheels comprise Mecanum wheels. 14. The electric cart apparatus according to claim 1, wherein the basket, the front legs, the rear legs, the oblique links, the auxiliary links and the wheels are electrically connected via one signal and are selectively controlled so as to be individually or simultaneously locked or unlocked. 15. The electric cart apparatus according to claim 1, wherein the basket is provided with a receiver device, and a transmitter device is provided outside the electric cart apparatus, wherein the receiver device detects a signal from the transmitter device such that the electric cart device follows the transmitter device.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (1)
Liu, Chia-Sheng; Chen, Chen-Yuan, Folding support for table machine.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.