KR20160083460A

KR20160083460A - Wheel device to use the stairs

Info

Publication number: KR20160083460A
Application number: KR1020140194949A
Authority: KR
Inventors: 박희석
Original assignee: 박희석
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2016-07-12

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel device in which a moving mechanism such as a baby carriage or a wheelchair can move up and down an obstacle and a stairway while driving. It is aimed that people who are uncomfortable in the society who are socially weak will be able to use obstacles such as stairs by themselves so that they can be used by many people by constructing a simple structure so that there is no inconvenience during traveling.
In order to solve the above-mentioned object, the seat part in which the user sits is kept horizontal as when driving without being influenced by an inclination angle of an obstacle such as a road or a stairway to be driven, and the wheel slips on the face or jaw of the obstacle In order to avoid the phenomenon, the sliding bar is operated when the obstacle passes, so that the movement is easy.
The advantage of the present invention is that it can be applied to a user who uses a conventional manual wheelchair with a slight modification work, and has a simple structure, which can reduce the economic burden of the user and improve the safety and ride comfort of the user.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel device for use in a staircase,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel device in which a moving mechanism such as a baby carriage or a wheelchair can move up and down an obstacle and a stairway while driving.

People using mobility devices such as strollers and wheelchairs are often used by those who are uncomfortable alone, without a guardian. There are facilities available for those who are not comfortable with existing public facilities or facilities. It is becoming a problem for the society becoming more and more solidified.

It is an urgent task to create an environment where people using mobile devices such as strollers and wheelchairs can live independently and freely regardless of location and price.

Published Patent Application No. 10-2010-0103018, Published Patent Application No. 10-2010-0075177, Japanese Patent Application Laid-Open No. 10-2009-0135373, Published Patent Application No. 10-2008-0075631

It is aimed that people who are uncomfortable in the society who are socially weak will be able to use obstacles such as stairs by themselves so that they can be used by many people by constructing a simple structure so that there is no inconvenience during traveling.

In order to solve the above-mentioned problem, the seat portion in which the user sits must maintain the horizontal position as when the vehicle runs without being influenced by the inclination angle of an obstacle such as a road or a stairway to be driven, and the wheel slips on the face or jaw of the obstacle There should be no phenomenon.

In order to have the above function, the angle of the seat is to be corrected so that the seat is horizontally received by the signal of the horizontal sensor using the rotation force of the motor according to the inclination angle with the chain or the timing pulley fixed to the bottom surface of the seat as in the present invention, When moving up and down the obstacle, it is necessary to construct an independent motor that operates the auxiliary device so that it protrudes outwards beyond the outer diameter of the tire of the moving device.

Also, the left and right wheels must be driven separately so that they can turn left / right while driving, and rotation must be done so that there is no interference in the operation of auxiliary equipment.

The advantage of the present invention is that it can be applied to a person who uses a conventional manual wheelchair by a slight modification work and has a simple structure so that the economic burden of the user can be reduced and the obstacle can be traveled by the user alone without the help of the carer, Safety and ride comfort can be improved.

1 is a view showing a state of climbing a stair using the present invention.
2 is a view showing a state where the stairs are descended using the present invention.
3 is a front view of the present invention.
FIG. 4 is a cross-sectional view of the line AA in FIG. 3; FIG.
5 is a detailed view showing a state in which the auxiliary device of the present invention protrudes to the outside of the tire.
6 is a detailed view showing a state in which the auxiliary device of the present invention is inserted into a tire.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention is configured as a moving mechanism comprising a seat part, a body, and a wheel device on which a user is to be boarded, and more details are shown in the drawings.

The seat portion includes a user seat 10, a user seat hinge 11, a horizontal adjustment sprocket or timing pulley 12, a horizontal adjustment chain or timing belt 13, a horizontal adjustment shaft 14, (15). When the moving mechanism moves up and down a sloping obstacle such as a staircase, the horizontal adjustment motor (15) receiving a signal from the horizontal sensor performs a forward / reverse rotation, and a horizontal adjustment sprocket or a timing pulley A rotation force is transmitted to the seat 12 and the rotation thereof is fixed below the user's seat 10 so that the seat of the user is leveled through the horizontal adjustment chain or timing belt 13 connected to the horizontal adjustment sprocket or timing pulley 12, . The leveling sprocket or timing pulley 12 is connected to a leveling shaft 14 and a KEY, which are assembled to the body by bearings. The user seat hinge 11 becomes the center of rotation of the user seat 10 rotated by the horizontal adjustment chain or the timing belt 13. [

The body includes a user seat hinge 11, a bearing unit and a horizontal adjustment motor 15 for fixing a horizontal adjustment shaft or a horizontal adjustment shaft 14 connected by a timing belt 13 and a KEY, a sliding bar operation motor 20, A wheel drive motor 30, and a bearing unit for fixing the sliding bar operation shaft 24 are assembled. See FIG. 3 attached herewith.

The wheel device consists of a sliding bar actuating part which can easily and safely move the obstacle and a wheel part which can rotate without interference with the operation of the sliding bar actuating device.

The sliding bar operating unit includes a sliding bar operating motor 20, a driving sprocket or a timing pulley 21, a slave sprocket or timing pulley 22, a sliding bar operating chain or timing belt 23, A slide bar 101, a link 102, a link holder 103, a bearing fixing cover 104, and a screw housing 105. The slide bar 101, The sliding bar operating motor 20 is rotated in the forward / reverse direction according to the adjustment of the user who recognizes the obstacle and the driving sprocket or the timing pulley 21 assembled with the sliding bar operating motor 20 is driven by the sliding bar operating chain or the timing belt 23 to transmit the rotational force to the slave sprocket or timing pulley 22 and also to the slave bar operating shaft 24 connected to the slave sprocket or timing pulley 22 and the KEY. Both ends of the sliding bar operating shaft 24 are formed with a right screw and a left screw and are assembled with the screw housing 105 in the same screw direction so that the rotation of the sliding bar operating shaft 24 is transmitted to the right and left straight lines of the screw housing 105 And a plurality of links 102 assembled with the link holder 103 are moved in a linear motion to the link holder 103 assembled with the rolling bearing and the bearing fixed cover 104 to form a plurality of sliding bars 101 Enter or exit the center of rotation. See FIGS. 4, 5 and 6 attached hereto.

The drive unit includes a wheel drive motor 30, a drive sprocket or timing pulley 31, a slave sprocket or timing pulley 32, a wheel drive chain or timing belt 33, a wheel 100, 106, a bearing fixed cover 107, a collar 108, a bearing fixed cover 109, a collar 110, and a tire 200. According to the user's adjustment, the wheel drive motor 30 rotates in the forward / reverse direction and the movement mechanism advances and reverses. The wheel drive motor 30 configured separately from the left and right sides performs the left / right turn of the movement mechanism I will. At this time, the wheels in the direction of rotation reduce the speed and the wheels on the opposite side are relatively fast to smooth the left / right turn. When the wheel drive motor 30 rotates in the forward / reverse direction according to the user's adjustment, the drive sprocket or the timing pulley 31 assembled with the wheel drive motor 30 is driven through the wheel drive chain or the timing belt 33 by the subordinate sprocket or timing The wheel 100 transmitting rotational force to the pulley 32 and connected to the slave sprocket or timing pulley 32 by the KEY is rotated by the rolling bearing without interfering with the sliding bar actuator. See FIG. 4 attached herewith.

The motor described above includes a brake device and maintains a stop state according to a user's adjustment.

10: user seat
11: User seat hinge
12: Horizontal adjustment sprocket or timing pulley
13: Horizontal adjustment chain or timing belt
14: Horizontal adjustment shaft
15: Horizontal adjustment motor
20: Sliding bar operation motor
21: Drive sprocket or timing pulley
22: Slave sprocket or timing pulley
23: Sliding bar operation chain or timing belt
24: Sliding bar operating shaft
30: Wheel drive motor
31: Drive sprocket or timing pulley
32: Slave sprocket or timing pulley
33: Wheel drive chain or timing belt
100: Wheels
101: Sliding bar
102: Link
103: Link holder
104: Bearing fixing cover
105: Screw housing
106: wheel cover
107: Bearing fixing cover
108: Kara
109: Bearing fixing cover
110: Kara
200: Tire

Claims

A wheel device having a tire and a sliding bar actuating device;
In the wheel device, a plurality of sliding bars are formed around a rotating shaft,
The two ends of the motor, which are subjected to the rotational movement of the motor, are converted into left and right linear motions through a screw housing having right and left screws threaded in the same direction, and this linear movement is transmitted to the link holder, Pulls or pushes the sliding bar toward or away from the outer diameter of the tire around the rotation axis. A device characterized by the fact that it does not interfere with the rotation of the wheel by the role of the rolling bearings and the fixed rolling bearings assembled to the link holder and shaft when the sliding bar actuating device is actuated.

The device according to claim 1, wherein the motor can be manually rotated by assembling the handle to the shaft if the motor rotational motion can not be obtained.

A seat portion provided with a leveling device;
A lower portion of the seat portion is provided with a rotation center axis of the apparatus for horizontally maintaining the seat of the user so as to pass the tilted obstacle and a fixing portion for fixing the chain or the timing belt for angle correction to the front and rear of the seat, / There is a pair in the right.
The chain or timing belt is connected to a sprocket or timing pulley, the sprocket or timing pulley is connected to the shaft by a key, and the shaft is adjusted to the body via a bearing unit.
The shaft is connected to the drive motor by a sprocket or a timing pulley, and the drive motor has a feature of performing a forward / reverse rotation by receiving a signal from a horizontal sensor incorporated in the body.

A driving unit for driving the left and right sides separately;
The driving unit has a separate driving motor on the left and right sides of the moving mechanism, and the driving motor is driven by the chain or the timing belt simultaneously.
When the user rotates the left / right wheels in the forward / backward direction of the moving mechanism, the driving unit rotates the wheels in the direction desired by the user when the moving mechanism rotates left / right, Smooth rotation.
The driving part is assembled with the sliding bar actuating device as a rolling bearing and is not interfered with each other during rotation.

Speed of moving obstacles;
The speed of the moving mechanism during obstacle movement is set to a safe speed for moving the obstacle differently from the plane travel, so that the speed of the obstacle can be prevented from increasing or decreasing in the moving section.