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US 9,950,729 B2Granted
Infant wagon having improved convenience of use
AssigneeBran-New International
InventorYejin Choi
Life of this patent
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Abstract
Provided herein is an infant wagon having improved convenience of use, wherein the infant wagon includes a front frame, a rear frame, a support frame, side frames, a front handle frame, and a rear handle frame, and is configured such that the axial distance between front wheels and rear wheels thereof is reduced, whereby it is possible to reduce the burden applied to the arms of a caregiver when the infant wagon is moved or when the direction of the infant wagon is changed, such that the radius of rotation of the infant wagon is reduced, whereby it is possible to easily change the direction of the infant wagon, such that, when the infant wagon is pushed from the rear thereof to move the infant wagon.
Claims13
A wagon configured for carrying a baby, comprising:
- a foldable main body frame;
- a wagon wheel unit connected to the foldable main body frame;
- and
- a seat unit disposed in the foldable main body frame;
- wherein the foldable main body frame comprises:
- a front frame disposed at a front end of the foldable main body frame;
- a rear frame disposed at a rear end of the foldable main body frame and including a lower end frame part bent upward at a center portion thereof;
- a support frame coupled to respective lower ends of the front frame and the rear frame, the support frame being disposed in a forward-rearward direction and including a wagon middle shaft disposed at a central portion thereof, a front support frame part and a rear support frame part both connected to the wagon middle shaft, wherein the front support frame part and the rear support frame part are configured to be folded or unfolded in a symmetrical fashion to vary a shape of the support frame according to upward and downward movement of the wagon middle shaft;
- a side frame coupled to the front frame and the rear frame, the side frame including a first rod connected to a lower portion of the front frame at one end thereof, a second rod connected to an upper portion of the front frame at one end thereof, wherein the first rod and second rod are connected to each other at a first middle portion thereof by a first pin, and are configured to rotate each other with respect to the first middle portion in a symmetrical fashion, the side frame further including a third rod connected to another end of the first rod at one end thereof and connected to a lower portion of the rear frame at another end thereof, and a fourth rod connected to another end of the second rod at one end thereof and connected to an upper portion of the rear frame at another end thereof, wherein the third rod and fourth rod are connected to each other at a second middle portion thereof by a second pin, thereby intersecting each other, and are configured to rotate each other with respect to the second middle portion thereof;
- and
- a front handle frame including a front left rod, wherein a lower end of the front left rod is coupled to a left end of the front frame via a front left handle fixing clip, and a front right rod, wherein a lower end of the front right rod is coupled to a right end of the front frame via a front right handle fixing clip, the front left and right rods extending upwardly from the front frame, the front handle frame further including a front angle adjustment handle having a left end connected to an upper end of the front left rod via a front left rotating shaft and a right end connected to an upper end of the front right rod via a front right rotating shaft, the front handle frame further including a front left rotation control button disposed on the front left rotating shaft and a front right rotation control button disposed on the front right rotating shaft, such that the front angle adjustment handle is configured to rotate with respect to the front left and right rotating shafts and the front left and right rotation control buttons are configured to control, in a stepwise manner, a rotation angle of the front angle adjustment handle.
8 more elements
A wagon configured for carrying a baby, comprising a foldable main body frame, a wagon wheel unit, a seat unit, and a canopy unit,
- wherein the foldable main body frame comprises:
- a front frame disposed at a front end of the foldable main body frame so as to stand up straight;
- a rear frame disposed at a rear end of the foldable main body frame so as to stand up straight and including a lower end frame part bent upward so as to have a recess;
- a support frame, which is a rectangular frame coupled to inside lower ends of the front frame and the rear frame, the support frame including a wagon middle shaft disposed at a middle thereof in a forward-rearward direction, the support frame including a front support frame part and a rear support frame part which are configured to be folded or unfolded in a symmetrical fashion to vary a shape of the support frame according to upward and downward movement of the wagon middle shaft;
- side frames coupled to left sides and right sides of the front frame and the rear frame between the front frame and the rear frame so as to be supported by the front frame and the rear frame, each of the side frames including a first rod connected to a lower portion of the front frame at one end thereof, a second rod connected to an upper portion of the front frame at one end thereof, wherein the first rod and second rod are connected to each other at a first middle portion thereof by a first pin, and are configured to rotate each other with respect to the first middle portion in a symmetrical fashion, each of the side frames further including a third rod connected to another end of the first rod at one end thereof and connected to a lower portion of the rear frame at another end thereof, and a fourth rod connected to another end of the second rod at one end thereof and connected to an upper portion of the rear frame at another end thereof, wherein the third rod and fourth rod are connected to each other at a second middle portion thereof by a second pin, thereby intersecting each other, and are configured to rotate each other with respect to the second middle portion thereof;
- a front handle frame coupled to left and right fronts of the front frame via front handle fixing clips so as to stand up straight, the front handle frame being configured such that front rotation control buttons are coupled to outsides of front rotating shafts formed at left and right upper ends of the front handle frame in order to control, in a stepwise manner, angles of a front angle adjustment handle;
- and
- a rear handle frame coupled to left and right rear portions of the rear frame via rear handle fixing clips so as to stand up straight, the rear handle frame being configured such that rear rotation control buttons are coupled to outsides of rear rotating shafts formed at left and right upper ends of the rear handle frame in order to control, in the stepwise manner, angles of a rear angle adjustment handle, and
- wherein the wagon wheel unit comprises:
- a front wheel drive unit including a left and a right front wheel drive wheels coupled to respective left and right rear lower ends of the front frame such that the axle of each of the left and right front wheel drive wheels is disposed at a rear of the front frame;
- and
- a rear wheel drive unit comprising:
- rear wheel fixing frames fixed to inner rear wheel support frames, formed at left and right lower ends of the rear frame, each of the rear wheel fixing frames being formed in a shape of an elliptical cylinder;
- a rear wheel detachment grip being coupled to a rear of each of the rear wheel fixing frames, each of the rear wheel fixing frames being configured to support a rear end of a rear wheel elastic spring mounted under the rear wheel fixing frame inside the rear wheel fixing frame;
- and
- rear wheel shock absorption frames, each of the rear wheel shock absorption frames being coupled to a lower end of a corresponding one of the rear wheel fixing frames, each of the rear wheel shock absorption frames being provided at one side of a rear thereof with a rear wheel fixing shaft axially coupled to a corresponding one of the rear wheel fixing frames, each of the rear wheel shock absorption frames being configured to support the rear wheel elastic spring connected to a rear wheel rotating shaft disposed at one side of a front of the rear wheel shock absorption frame and axially coupled to a rear wheel brake unit, the rear wheel brake unit being coupled to an inside of each of the rear wheel shock absorption frames, each of the rear wheel drive wheels being coupled to an outside of a corresponding one of the rear wheel shock absorption frames,
- wherein the rear wheel brake unit is configured such that a rod-shaped brake rotating shaft is horizontally coupled to an inside of each of the rear wheel shock absorption frames, the rear wheel brake unit being provided at a middle thereof with a brake pad which has a rectangular area to control rotation of the rear wheel drive wheels,
- wherein the rear wheel drive wheels are configured to be rotated in a state in which left and right rotating shafts of the rear wheel drive wheels are coupled to the respective rotating shafts of the rear wheel shock absorption frames,
- wherein each of the rear wheel fixing frames is axially coupled to the respective rear wheel shock absorption frame located at a lower end of the respective rear wheel fixing frame, and
- wherein the rear wheel brake unit comprises:
- protruding wings being formed on front and rear sides of the rod-shaped brake rotating shaft;
- first gears being coupled to respective left and right ends of the brake rotating shaft, wherein the brake pad has a rectangular upper section, the brake pad being coupled to a middle of the brake rotating shaft in a state of being fitted on the brake rotating shaft in a lateral direction so as to rotate the brake rotating shaft under control of a user;
- and
- rotating frames, each of which is located at one side of a rear of a corresponding one of the rear wheel shock absorption frames, the rotating frames being provided with second gears rotatably engaged with the first gears of the brake rotating shaft, each of the rotating frames being provided at one side of a lower end thereof with a brake pin which protrudes outward so as to be inserted into or separated from a rotation control recess formed in a corresponding one of the rear wheel drive wheels in order to control rotation of the rear wheel drive wheels.
21 more elements
Dependencies are inferred from the claim text.