KR20160061578A - The Cart With Leg Joint - Google Patents

The Cart With Leg Joint Download PDF

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Publication number
KR20160061578A
KR20160061578A KR1020140163919A KR20140163919A KR20160061578A KR 20160061578 A KR20160061578 A KR 20160061578A KR 1020140163919 A KR1020140163919 A KR 1020140163919A KR 20140163919 A KR20140163919 A KR 20140163919A KR 20160061578 A KR20160061578 A KR 20160061578A
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KR
South Korea
Prior art keywords
cart
joint
present
legs
wheel
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Application number
KR1020140163919A
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Korean (ko)
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강운현
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강운현
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Priority to KR1020140163919A priority Critical patent/KR20160061578A/en
Publication of KR20160061578A publication Critical patent/KR20160061578A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/02—Accessories or details specially adapted for children's carriages or perambulators providing for travelling up or down a flight of stairs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S280/00—Land vehicles
    • Y10S280/10—Stair climbing chairs

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Handcart (AREA)

Abstract

The present invention relates to a cart which is able to fold and unfold legs of the cart by installing a joint, an auxiliary wheel, etc. on the legs of the cart. The present invention solves problems caused by raising a front wheel by applying force as much as the total weight of a cart and a load and pushing a rear wheel upwards by applying force again when the cart goes over a protrusion or stairs. In order to solve the above problems, the present invention reduces applied force by automatically unfolding the legs by using hydraulic equipment, a suspension, or electricity after passing over a protrusion or stairs by folding a front wheel and a rear wheel. Each joint is able to function independently through a handle and is able to secure stability by absorbing operation vibration by attaching the suspension. The present invention is able to maintain an operation state without an interruption even when only one joint between front and rear legs is functional since the auxiliary wheel is included in a bent joint. As mentioned above, the present invention is able to easily operate carts such as a stroller for children and the old with low muscular strength, a cart in a mart, walking aids, etc.

Description

다리 관절을 가진 수레 {The Cart With Leg Joint}The Cart with Leg Joint {

본 발명은 수레에 관한 것으로, 더욱 상세하게는 수레 다리에 관절과 보조바퀴 등을 설치하여 수레 운행과정에서 손잡이의 조작으로 관절고정장치를 조절하여 수레의 다리가 굽혀졌다 펴졌다 할 수 있도록 함을 목적으로 한 것이다.The present invention relates to a wagon, and more particularly, to a wagon that is provided with joints, auxiliary wheels, and the like so that the legs of the wagon can be bent and adjusted by manipulating the knob during operation of the wagon Purpose.

일반적으로, 수레는 바퀴를 달아 짐을 옮기는데 쓰는 기구로서, 무거운 짐을 밀어 운반함으로서 보다 쉽게 많은 짐을 운반 할 수 있도록 돕기 위한 것이다.In general, wagons are used to move loads on wheels. They are intended to help carry more loads by pushing heavy loads.

기존의 수레는 짐을 싣고 이동하던 중 계단이나 턱을 만났을 경우, 그것을 오르기 위해 손잡이에 수레와 짐의 무게만큼의 힘을 가해서 앞바퀴를 들어 올려야 하며, 또 그만큼의 힘을 가해서 뒷바퀴를 마저 밀어 올려야 한다.In the case of a conventional wagon, if you encounter a staircase or chin while carrying a load, you must lift the front wheel by applying the weight of the cart and the load to the handle to climb it, and push the rear wheel even further.

이러한 점은 노약자, 임산부의 경우 문제점으로 작용할 수 있었다.
This could be a problem for the elderly and pregnant women.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로 수레 운행 과정에서 턱이나 계단을 오르내릴 때 수레에 가해야 하는 힘을 줄여서 운행에 용이함을 얻고자 하는 것을 목적으로 한다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to reduce the force to be applied to a cart when climbing up and down a chin or a stairway during a cart operation.

본 발명은 기존 수레의 다리 중간 부분에 관절을 만들고 평소에는 접히지 않도록 안전장치를 설정한다. 손잡이를 통해 안전장치를 조작 할 수 있으며, 안전장치를 해제 했을 경우 다리가 접히도록 설계된다. 굽혀진 관절 부분에는 보조바퀴가 달려 있으며, 관절부분에 용수철 혹은 유압장치를 설치하여 손잡이의 조작으로 굽혀진 다리를 펼 수 있다. 양쪽 손잡이가 각각 앞바퀴와 뒷바퀴에 따로 작용하여 수레의 앞다리 관절과 뒷다리 관절을 따로 조작 할 수 있다.The present invention establishes a safety device to make joints in the middle of the legs of an existing wagon and not to be folded normally. The safety device can be operated through the handle and the leg is designed to be folded when the safety device is released. A bent wheel is attached to the part of the bent joint. A spring or a hydraulic device can be installed on the joint and the bent leg can be opened by manipulating the handle. Both handles act separately on the front and rear wheels, respectively, so that the front and rear leg joints of the wagon can be operated separately.

이상과 같이 본 발명에 따르면 근력이 약한 어린이와 노약자의 경우에도 굳이 수레와 짐의 무게를 합한 만큼의 힘을 들이지 않고서도 손쉽게 턱이나 계단 혹은 심한 요철이 있는 지반을 운행할 수 있다.As described above, according to the present invention, even in the case of children and elderly people with weak muscles, it is possible to easily operate the jaws, the stairs, or the ground with severe irregularities without applying the force equivalent to the sum of the weight of the cart and the load.

도1은 본 발명품의 기능 전 모습을 보여주는 좌측면도이다.
도2는 앞 다리가 기능한 상태를 나타내며 뒷 다리 관절 구조를 보여주는 구성도이다.
도3은 앞 다리와 뒷 다리 모두 기능한 상태를 보여주는 좌측면도이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a left side view showing the function before the function of the present invention. Fig.
FIG. 2 is a view showing a state in which the front leg is functioning and showing a hind leg joint structure.
Fig. 3 is a left side view showing a state in which both the front leg and the hind leg function.

이하, 첨부된 도면을 참고하여 본 발명의 실시를 위한 구체적인 내용을 상세히 설명하면 다음과 같다. 도1은 발명품의 기능 하기 전 상태를 보여주는 좌측면도로서 제품의 평상시 운행상태를 보여주고 있다. 카트의 앞 다리 중간 부분에는 안으로 접힐 수 있는 관절이 설치되었으며(21) 뒷 다리에서 이와 유사한 형태의 관절이 부착되어 있다.(22) 앞 다리 관절(21)과 뒷 다리 관절(22)는 서로 독립적으로 기능하는 부분으로서 이들은 모두 관절 고정장치(40)에 의해 일반 운행시 고정상태를 유지하고 있다. 앞 다리와 (21) 뒷 다리(22) 관절에 달린 관절 고정장치(40)은 손잡이에 달린 안전장치 제어 손잡이(30)에 의해 제어될 수 있으며, 이 고정장치는 손잡이 2개에 의해 각각 앞 다리(21)과 뒷 다리(22)를 독립적으로 제어할 수 있다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. FIG. 1 is a left side view showing the state before the function of the invention, and shows a normal operation state of the product. In the middle of the cart's front legs there are joints that can be folded inwards (21) and similar types of joints are attached to the hind legs (22). The anterior and posterior joints (21) and All of which are fixed by the joint fixation device 40 during normal operation. The joint fixation device 40 attached to the joints of the front legs 21 and the hind leg 22 can be controlled by a safety device control handle 30 attached to the handle, (21) and the rear leg (22) can be independently controlled.

그러므로 안전장치 제어 손잡이(30)을 작용시켜 앞 다리 관절(21)만 기능시킨 모습을 보여주는 도면이 도2 이다. 도2는 앞 다리 관절(21)이 기능한 상태를 보여주고 있으며, 이 때 톱니바퀴, 기어 혹은 캠(12)와 안전장치(관절 고정장치)(40)이 적당한 각도까지 다리가 접히도록 작용하여 주며, 다리가 접힌 후 보조바퀴(20)가 작용하여 계속해서 앞으로 나아갈 수 있도록 한다. 다른 쪽 안전장치 제어 손잡이(30)을 이용하여 뒷 다리 관절(22)까지 기능시킨 모습이 도3 이다.Therefore, FIG. 2 shows a state in which only the front leg joint 21 functions by operating the safety device control handle 30. FIG. 2 shows a state in which the front leg joint 21 is functioning. At this time, the gears or the cams 12 and the safety device (joint fixation device) 40 function to fold the legs to an appropriate angle And the auxiliary wheel 20 is operated after the leg is folded so that it can continue to move forward. FIG. 3 shows a state in which the rear leg joint 22 is operated using the other safety device control handle 30.

도3 또한 도2에서의 매커니즘과 같이 적당한 각도까지 다리가 접히며 도3의 수준까지 기능시킨 경우 짧은 시간동안 총 4개의 바퀴로 카트가 운행된다.Fig. 3 also shows that the cart is operated with a total of four wheels for a short period of time if the legs are folded to a suitable angle, such as the mechanism in Fig. 2, to the level of Fig.

안전장치 제어장치(31)은 유압식, 자동식, 혹은 용수철 등 추가 서스펜션을 이용하여 기능할 수 있으며, 이는 앞,뒷다리 관절(21,22)와 마찬가지로 안전장치 제어 손잡이(30)을 통해 제어될 수 있다. 안전장치 제어장치(31)을 작용시켜서 도2와 도3처럼 접혀 있는 앞, 뒤 다리를 동시에 혹은 각각 독립적으로 펼 수 있다.The safety device control device 31 can be operated using additional suspensions, such as hydraulic, automatic, or spring, which can be controlled via the safety device control handle 30, as well as the front and rear leg joints 21, 22 . By operating the safety device control device 31, the folded front and rear legs can be opened simultaneously or independently of each other as shown in Figs. 2 and 3.

각 관절에는 서스펜션(11)이 달려있어서 각 관절이 접히고 펴지는 과정에서 충격을 흡수하고 요철이 있는 지반을 이동할 때 흔들림을 줄여 주어 안정성을 향상시킨다.Each of the joints has a suspension 11, which absorbs shocks in the process of folding and unfolding the joints, and improves the stability by reducing the shaking when moving the uneven ground.

10은 안쪽으로 접히는 관절.
11은 서스펜션.
12는 톱니바퀴, 기어 혹은 캠.
20은 보조바퀴.
21은 앞 다리 관절.
22는 뒷 다리 관절.
30은 안전장치 제어 손잡이.
31은 안전장치 제어장치.
40은 안전장치(관절 고정장치).10 is a joint that folds inward.
11 is a suspension.
12 is a cogwheel, gear or cam.
20 is the auxiliary wheel.
21 is forearm joint.
22 is the hind leg joint.
30 is a safety device control knob.
31 is a safety device control device.
40 is a safety device (joint fixation device).

Claims (2)

손잡이로 밀고 다니는 수레류에 있어서,
손잡이 부분에 안전장치 제어 손잡이(30),
다리 부분에 보조바퀴(20),
각 다리에 관절(21)(22)이 있으며,
관절을 굽혔다 펼 수 있는 기능을 포함하는 수레류.
In the case of carts pushed by handles,
A safety device control knob 30,
The auxiliary wheels (20),
Each leg has joints 21 and 22,
A wheelbarrow that includes the ability to bend and unfold joints.
손잡이로 밀고 다니는 수레류에 있어서, 다리 부분에 관절이 존재하며, 서스펜션이 추가 될 수 있고, 관절을 접고 펴는 방식은 유압식, 자동식, 추가 서스펜션을 활용 하는 방식 중 어느 하나의 방식을 채택하는 것으로 한다.In the case of carts pushed by handles, there are joints in the legs, suspensions can be added, and the method of folding and stretching joints is to adopt one of the hydraulic, automatic, and additional suspension methods .
KR1020140163919A 2014-11-22 2014-11-22 The Cart With Leg Joint KR20160061578A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190134403A (en) 2018-05-25 2019-12-04 이진혁 Carry luggage tracking home robot
WO2020184717A1 (en) * 2019-03-14 2020-09-17 加藤鉄工株式会社 Carrier, and method for using same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190134403A (en) 2018-05-25 2019-12-04 이진혁 Carry luggage tracking home robot
WO2020184717A1 (en) * 2019-03-14 2020-09-17 加藤鉄工株式会社 Carrier, and method for using same
JP2020147187A (en) * 2019-03-14 2020-09-17 加藤鉄工株式会社 Carrier and usage of the same

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