KR100923244B1 - Enhanced Tubeless Cart Wheel - Google Patents

Enhanced Tubeless Cart Wheel Download PDF

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Publication number
KR100923244B1
KR100923244B1 KR1020080135121A KR20080135121A KR100923244B1 KR 100923244 B1 KR100923244 B1 KR 100923244B1 KR 1020080135121 A KR1020080135121 A KR 1020080135121A KR 20080135121 A KR20080135121 A KR 20080135121A KR 100923244 B1 KR100923244 B1 KR 100923244B1
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KR
South Korea
Prior art keywords
core
wheel
central
inner ring
right inner
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KR1020080135121A
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Korean (ko)
Inventor
최화수
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최화수
김옥희
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Priority to KR1020080135121A priority Critical patent/KR100923244B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00—Non-inflatable or solid tyres
    • B60C7/24—Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/02—Disc wheels, i.e. wheels with load-supporting disc body with a single disc body integral with rim

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

PURPOSE: A tubeless wheel for a handcart is provided to serve as wheel without air injection by forming a hollow with a central fixed core and right and left inner races and to prevent separation of the right and left inner races in summer time by fixing the right and left inner races to core grooves formed on the central fixed core. CONSTITUTION: A tubeless wheel for a handcart comprises a center core(6) with a bearing insertion part(7) on the inner center side, a central fixed core(9) formed on the perimeter of the bearing insertion part, a core groove(10) formed on both ends of the central fixed core, a core protrusion(11) formed on both lower sides of the central fixed core, an inner protrusion(4) formed on left and right inner races(2,3) and inserted in the core grooves, an inner race groove(5) formed on the inner side of the left and right inner races and fitted to the core protrusion, a hollow(13) formed by the central fixed core and the left and right inner races, and a cover tire molded on the exterior surface of the assembly of the center core and the left and right inner races.

Description

개량형 튜브레스 손수레 바퀴{omitted}Improved tubeless cart wheels

도 1 은 종래의 기술이 적용된 손수레 바퀴의 일부분이 전개된 단면 사시도1 is a cross-sectional perspective view of a part of a wheelbarrow wheel to which the conventional technique is applied;

도 2 는 본 발명의 개량형 튜브레스 손수레 바퀴(이하 손수레 바퀴)의 일부분이 전개된 단면 사시도2 is a cross-sectional perspective view of a portion of an improved tubeless cart wheel (hereinafter, referred to as a wheelbarrow) of the present invention.

도 3 은 본 발명의 손수레 바퀴의 중앙부 코어 사시도3 is a perspective view of the center of the center wheel of the wheel of the present invention

도 4 는 본 발명의 손수레 바퀴의 중앙부 코어의 단면도4 is a cross-sectional view of a central core of a wheelbarrow of the present invention.

도 5 는 본 발명의 손수레 바퀴의 좌우내면륜의 사시도5 is a perspective view of the left and right inner wheel of the wheelbarrow of the present invention;

도 6 은 본 발명의 손수레 바퀴의 좌우내면륜의 단면도6 is a cross-sectional view of the left and right inner wheel of the wheelbarrow of the present invention;

도 7 은 본 발명의 손수레 바퀴의 부분품 분해 사시도7 is an exploded perspective view of parts of a wheelbarrow of the present invention;

도 8 은 본 발명의 손수레 바퀴의 부분품이 조립된 단면도8 is a cross-sectional view of an assembly of parts of the wheel of the present invention

도 9 는 본 발명의 손수레 바퀴의 완성된 제품의 사시도9 is a perspective view of the finished product of the wheelbarrow of the present invention;

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1. 외면피 2 좌측 내면륜1. Outside skin 2 Left inner ring

3. 우측 내면륜 4. 내면륜 돌기3. Right inner wheel 4. Inner wheel protrusion

5. 내면륜 요홈 6. 중앙부 코어5. Inner Wheel Groove 6. Center Core

7 베어링 삽입구 8. 허브7 Bearing slot 8. Hub

9. 중앙 고정심 10 코어 요홈9. Center fixed core 10 core groove

11 코어 돌기 12 중간막이11 core protrusion 12 interlayer

13. 중공부13. Hollow part

본 발명은 운반수단으로 사용되고 있는 손수레의 바퀴를 바퀴 외면피의 내부에 중공부를 만들어 공기를 주입시키지 않고 사용하기 위하여 열가소성 합성수지로 사출성형하여 튜브레스 손수레 바퀴를 제조함에 있어서 선등록된 20-0323490호(투브레스 타이어)의 개량형 튜브레스 손수레 바퀴에 관한 것으로서, 도 1에서의 구성에서와 같이 종래에는 바퀴 내부에 중간막이(12)가 구성되여 있고 중간막이(12)의 양면에 중공부(13)가 공간이 되며 있어 사출금형 제작이 난이하고 사출성형 후 제품의 로출이 난이하여 생산량이 감소되고 비경제적이므로 이를 개량하여 금형제작이 용이하고 제품생산이 용이하개 개량되였고, 도 2의 구성에서와 같이 중간막이(12) 대신에 허브(8)의 원주 중앙에 중앙 고정심(9)을 고착시키고 중앙 고정심(9)의 양면에 좌내면륜(2)과 우내면륜(3)을 치합시켜 중공부(13)을 형성시키고 그 외부에 연질의 합성수지 또는 고무로 외면피(1)을 형성하게 구성되였다The present invention is a pre-registered 20-0323490 in the manufacture of tubeless cart wheels by injection molding the wheel of the cart used as a transport means by using a thermoplastic synthetic resin for use without making a hollow portion inside the outer surface of the wheel to inject air Two-breed tires) relates to an improved tubeless cart wheel, as in the configuration shown in Figure 1 conventionally has an intermediate film 12 is formed inside the wheel and the hollow portion 13 on both sides of the intermediate film 12 Since it becomes a space, it is difficult to manufacture the injection mold and the production of the product after injection molding is difficult, so that the amount of production is reduced and it is uneconomical, so it is easy to manufacture the mold and the product is easily improved, as in the configuration of FIG. Instead of the interlayer 12, the central fixing core 9 is fixed to the center of the circumference of the hub 8, and the left inner ring 2 and the right side of the central fixing core 9 are fixed on both sides. By coupling the myeonryun 3 doeyeotda form a hollow portion (13) and adapted to form the outer surface of blood (1) of a synthetic resin or rubber of a soft on the outside

본 발명의 손수레 바퀴는 중앙부 코어(6)의 중앙에는 베어링 삽입구(7)가 천공되여 회전축이 삽입되고 베어링 삽입구(7)의 외면에는 허브(8)가 성형되며 바퀴의 내부 하중을 지지하고 허브(8)의 외면 원주의 중앙에 중앙 고정심(9)이 고착되 고 중앙 고정심(9)의 끝단면에 코어요홈(10)이 양면에 요설되고 중앙 고정심(9)의 하단에는 코어 돌기(11)가 철설되고 좌우 내면륜(2)(3)의 내면륜 돌기(4)와 내면륜 요홈(5)이 각각 치합되며 조립함으로서 손수레의 하중이 많거나 하절기에 높은 온도에서 합성수지의 강도가 낮아저서 좌우 내면륜 요홈(5)과 좌우 내면륜 돌기(4)가 이탈되지 않게 치합되게 하고 중앙 고정심(6)의 외면 원주를 폭넓게 구성한다In the wheel of the present invention, the bearing insertion hole 7 is drilled in the center of the center core 6 so that the rotation shaft is inserted, and the hub 8 is formed on the outer surface of the bearing insertion hole 7 to support the internal load of the wheel and the hub ( The center fixing core (9) is fixed to the center of the outer circumference of 8), the core groove (10) is provided on both sides at the end surface of the center fixing core (9), and the core projection ( 11) is installed and the inner wheel protrusions 4 and the inner wheel grooves 5 of the left and right inner wheels 2 and 3 are engaged with each other and are assembled, so that the load of the cart is high or the strength of the synthetic resin is low at high temperatures in the summer. The left and right inner wheel grooves 5 and the left and right inner wheel protrusions 4 are engaged so as not to deviate, and the outer circumference of the central fixing core 6 is widely constructed.

이에 첨부된 도면에 의하여 본 발명의 구성과 작용을 상세히 설명하면 아래와 같다When described in detail the configuration and operation of the present invention by the accompanying drawings as follows.

도 3과 도 4의 구성에서와 같이 중앙부 코어(6)는 중앙에는 베어링 삽입구(7)가 천공되며 베어링이 삽입되여 회전축이 형성되고 베어링 삽입구(7)의 외면 원주는 바퀴의 허브(8)가 형성되여 손수레 바퀴의 내부 하중을 담당하고 허브(8)의 외면 원주상의 중앙에 중앙 고정심(9)이 원판형으로 고착되고 중앙 고정심(9)의 외면 원주에는 양면으로 코어 요홈(10×10')이 요설되고 중앙 고정심(9)의 하단의 양면에는 코어 돌기(11)(11')가 철설되여 있고, 도 5와 도 6의 구성에서와 같이 좌내면륜(2)과 우내면륜(3)이 원반형으로 성형되고 좌우내면륜(2)(3)의 외주면 끝단에는 내면륜 돌기(4)가 철설되고 내주면에는 내면륜 요홈(5)이 각각 요설되고 도 7과 도 8의 구성에서와 같이 중앙부 코어(6)의 허브(8)의 원주의 중앙 고정심(9)의 끝단면의 코어 요홈(10)(10')에 좌우내면륜(2)(3)의 내면륜 돌기(4)가 삽이되며 치합되고 중앙 고정심(9)의 하단면의 코어 돌기(11)(11)'에 좌우내면륜(2)(3)의 내면륜 요홈(5)이 삽이되며 치합되고 중앙 고정심(9)의 양면에 중공부(13)가 형성되여 공 기가 주입되지 않아고 공간이 형성되고 도 9에서와 같이 중앙부 코어(6)에 좌우내면륜(2)(3)이 치합된 상태에서 다시 사출금형 또는 고무금형에 삽입하여 외면피(1)을 성형한다3 and 4, the central core 6 has a bearing insertion hole 7 formed in the center thereof and a bearing is inserted therein to form a rotating shaft, and the outer circumference of the bearing insertion hole 7 has a hub 8 of the wheel. Formed to be responsible for the internal load of the wheel of the wheelbarrow, and the central fixing core (9) is fixed in a disc shape at the center of the outer circumference of the hub (8) and the core groove (10 ×) on both sides of the outer circumference of the central fixing core (9). 10 ') is provided and core projections 11 and 11' are provided on both sides of the lower end of the center fixing core 9, and the left inner surface wheel 2 and the right inner surface as shown in the configuration of Figs. The wheels 3 are formed in a disk shape, and inner wheel protrusions 4 are formed at the outer circumferential ends of the left and right inner wheels 2 and 3, and inner wheel grooves 5 are provided at the inner circumferential surfaces, respectively, and the configuration of FIGS. 7 and 8 is performed. As shown in the left and right inner ring (2) (3) to the core groove (10) (10 ') of the end surface of the central fixed core (9) of the circumference of the hub (8) of the central core (6) The inner wheel protrusions (4) of the inner wheels (5) of the left and right inner wheels (2) and (3) to the core protrusions (11) (11) 'of the lower end of the central fixing core (9) is inserted into the inner ring protrusion (4) of the This shovel is engaged and the hollow portion 13 is formed on both sides of the center fixed core 9 so that no air is injected and a space is formed, and the left and right inner ring 2 on the central core 6 as shown in FIG. (3) is inserted into the injection mold or rubber mold again to form the outer skin (1).

이와 같이된 본 발명의 효과을 보면 중앙부 코어(6)의 중앙 고정심(9)의 양면에 좌우내면륜(2)(3)으로 싸여있어 중공부(13)가 공간을 이루고 있어 공기가 주입되지 않아도 손수레 바퀴가 그 역할을 할 수 있고 중앙 고정심(9)이 있어 많은 하중을 담당할 수 있고 중앙 고정심(9)의 끝단의 코어 요홈(10)(10')이 있어 하절기에 좌우내면륜(2)(3)이 이탈하지 않는 장점이 있다According to the effect of the present invention as described above is enclosed by the left and right inner surface wheels (2) and (3) on both sides of the central fixing core (9) of the central core (6), the hollow portion 13 forms a space, even if no air is injected Wheelbarrow wheels can play a role, and there is a central fixed core (9) to handle a lot of load, and there are core grooves (10, 10 ') at the end of the central fixed core (9), so that the left and right inner wheels in the summer ( 2) (3) has the advantage of not falling off

Claims (4)

손수레 바퀴에 있어서In the wheel of a cart 중앙부 코어(6)의 내측 중심부에는 베어링 삽입구(7)가 천공되고 베어링 삽입구(7)의 외측 외주쪽으로 중앙 고정심(9)이 형성되고 중앙 고정심(9)의 외주면 양단에는 코어 요홈(10)(10')이 요설되고,A bearing insertion hole 7 is drilled in the inner center of the central core 6, and a central fixing core 9 is formed toward the outer circumference of the bearing insertion hole 7, and core recesses 10 are formed at both ends of the outer peripheral surface of the central fixing core 9. 10 'is the main point, 중앙 고정심(9)의 하단 양측부에는 코어 돌기(11)(11')가 형성되며,Core projections 11 and 11 ′ are formed at both lower ends of the central fixing core 9, 좌내면륜(2)과 우내면륜(3)의 외측에 형성된 내면 돌기(4)가 상기 중앙 고정심(9)의 코어 요홈(10)(10')에 삽입되어 치합되고 좌내면륜(2)과 우내면륜(3)의 내측에 형성된 내면륜 요홈(5)이 상기 중앙 고정심(9)의 코어 돌기(11)(11')에 삽입되어The inner surface protrusions 4 formed on the outside of the left inner surface wheel 2 and the right inner surface wheel 3 are inserted into and engaged with the core grooves 10 and 10 'of the central fixing core 9, and the left inner surface wheel 2 ) And the inner ring groove 5 formed inside the right inner ring 3 are inserted into the core protrusions 11 and 11 'of the central fixed core 9, 중앙 고정심(9)과 좌우내면륜(2)(3)이 중공부(13)를 형성하게 되며Center fixing core (9) and the left and right inner ring (2) (3) forms a hollow portion (13) 상기 중앙부 코어(6)와 좌우내면륜(2)(3)의 결합체의 외면에 외피타이어가 사출 성형되어 이루어지는 것을 특징으로 하는 개량형 튜브레스 손수레 바퀴Improved tubeless cart wheel, characterized in that the outer tire is injection molded on the outer surface of the combination of the central core 6 and the left and right inner ring (2) (3). 청구항 2은(는) 설정등록료 납부시 포기되었습니다.Claim 2 was abandoned when the setup registration fee was paid. 1항에서 중앙부 코어(6)의 중앙 고정심(9)의 외주면에 요설된 코어요홈(10)(10')에 좌내면륜(2)과 우내면륜(3)의 내면륜 돌기(4)가 삽입되여 치합되는 것을 특징으로 하는 손수레 바퀴.The inner ring wheel 4 of the left inner wheel 2 and the right inner wheel 3 in the core groove 10, 10 ′ concave on the outer circumferential surface of the central fixing core 9 of the central core 6 in claim 1. Wheelbarrow wheels, characterized in that the insertion is inserted. 청구항 3은(는) 설정등록료 납부시 포기되었습니다.Claim 3 was abandoned when the setup registration fee was paid. 1항에서 중앙부 코어(6)의 중앙 고정심(9)의 하단에 철설된 코어 돌기(11)11')에 좌내면륜(2)과 우내면륜(3)의 내면륜 요홈(5)이 삽입되여 치합되는 것을 특징으로 하는 손수레 바퀴.The inner inner ring groove 5 of the left inner ring 2 and the right inner ring 3 is formed on the core projection 11'11 'which is formed at the lower end of the central fixing core 9 of the central core 6 in claim 1. Cart wheel, characterized in that inserted and engaged. 청구항 4은(는) 설정등록료 납부시 포기되었습니다.Claim 4 was abandoned when the registration fee was paid. 1항에서 중앙부 코어(6)의 중앙 고정심(9)의 양면에 좌우내면륜(2)(3)이 삽입되여 치합됨으로 중공부(13)가 형성되는 것을 특징으로 하는 손수레 바퀴The wheelbarrow wheel, characterized in that the hollow portion 13 is formed by inserting and engaging the left and right inner surface wheels 2 and 3 on both sides of the central fixing core 9 of the central core 6 in claim 1.
KR1020080135121A 2008-12-24 2008-12-24 Enhanced Tubeless Cart Wheel KR100923244B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102022191B1 (en) 2018-04-20 2019-09-17 김옥희 Wrapping paper for agricultural products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200323490Y1 (en) * 2003-04-14 2003-08-19 최화수 Improved tubeless tire
KR100799954B1 (en) * 2007-04-09 2008-02-01 김철대 Wheel of air injection less type
KR100849393B1 (en) 2007-06-13 2008-07-31 김철대 Wheel of air injection less type

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200323490Y1 (en) * 2003-04-14 2003-08-19 최화수 Improved tubeless tire
KR100799954B1 (en) * 2007-04-09 2008-02-01 김철대 Wheel of air injection less type
KR100849393B1 (en) 2007-06-13 2008-07-31 김철대 Wheel of air injection less type

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KR102022191B1 (en) 2018-04-20 2019-09-17 김옥희 Wrapping paper for agricultural products

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