KR100650980B1 - A hinge's torsion spring manufacturing method by introduction to metal injection molding technology and hinge device with thereof torsion spring - Google Patents

A hinge's torsion spring manufacturing method by introduction to metal injection molding technology and hinge device with thereof torsion spring Download PDF

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KR100650980B1
KR100650980B1 KR1020040104730A KR20040104730A KR100650980B1 KR 100650980 B1 KR100650980 B1 KR 100650980B1 KR 1020040104730 A KR1020040104730 A KR 1020040104730A KR 20040104730 A KR20040104730 A KR 20040104730A KR 100650980 B1 KR100650980 B1 KR 100650980B1
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South Korea
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torsion spring
injection molding
metal powder
hinge device
molding method
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KR1020040104730A
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Korean (ko)
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KR20060066212A (en
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김명식
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주식회사 평강산업
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
    • C22C33/0271—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5% with only C, Mn, Si, P, S, As as alloying elements, e.g. carbon steel
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1008—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis
    • E05F1/1016—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring parallel with the pivot axis with a canted-coil torsion spring

Abstract

본 발명은 금속분말사출성형법을 이용하여 단일한 드럼체로 형성됨으로써, 소음발생, 정렬변형의 염려가 없고 조립공수가 획기적으로 감축되어 생산성을 획기적으로 향상시킴과 아울러 스프링강재의 탄성특질이 우수하게 발현되어 품질특성을 현저히 향상되도록 하는 금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치에 관한 것이다.The present invention is formed of a single drum body by using the metal powder injection molding method, there is no fear of noise generation and alignment deformation, and the assembly labor is greatly reduced, thereby improving productivity and expressing excellent elastic properties of the spring steel. A method for manufacturing a torsion spring for a hinge device by a metal powder injection molding method for remarkably improving quality characteristics, and a hinge device provided with the torsion spring.

이를 실현하기 위한 본 발명은 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링을 포함하는 힌지장치의 제조방법에 있어서, 상기 토션스프링은, 스프링강인 SM50C 또는 SK5 또는 SWC 또는 SWPB 금속분말을 포함하여 이루어지는 원료분말과 결합제를 혼합하여 피드스톡을 제조하고, 상기 피드스톡을 금형내로 고압 사출 성형하고, 사출된 성형체로부터 용매추출 및 열분해법을 이용하여 결합제를 제거하고, 결합제가 제거된 성형체를 소결하여 제조되는 것을 특징으로 하며, 상기 토션스프링은, 상기 금속분말사출성형방법에 의해 제조되고 상기 샤프트에 단일체로서 결합되기 위한 길이로 형성되는 드럼형 토션스프링으로 구성됨을 특징으로 한다.The present invention for realizing this has a longitudinally penetrated hole and the housing is mounted to the main body, the shaft is coupled to the hole and mounted to the rotating body, the friction portion coupled to the shaft and the rotation is prevented from the housing In the manufacturing method of a hinge device comprising a torsion spring consisting of a key portion for the, the torsion spring, the feedstock is prepared by mixing a raw material powder and a binder comprising a spring steel SM50C or SK5 or SWC or SWPB metal powder High pressure injection molding the feedstock into a mold, and removing the binder from the injected molded body by using a solvent extraction and pyrolysis method, characterized in that the torsion spring is produced by sintering the molded body, the binder is removed, Manufactured by a metal powder injection molding method and shaped to a length to be joined as a unit to the shaft Is characterized by a drum-shaped consists of a torsion spring.

Description

금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치{A HINGE'S TORSION SPRING MANUFACTURING METHOD BY INTRODUCTION TO METAL INJECTION MOLDING TECHNOLOGY AND HINGE DEVICE WITH THEREOF TORSION SPRING} Manufacturing method of torsion spring for hinge device by metal powder injection molding method and hinge device provided with the torsion spring             

도 1은 종래 기술의 토션스프링이 구비된 힌자장치의 구성도1 is a block diagram of a hinja device equipped with a conventional torsion spring

도 2는 본 발명에 따른 일 실시예의 토션스프링의 구성도2 is a block diagram of a torsion spring according to an embodiment of the present invention.

도 3a 내지 도 3g는 본 발명에 따른 실시예들의 토션스프링의 단면도3A-3G are cross-sectional views of torsion springs of embodiments according to the present invention.

도 4는 본 발명에 따른 일 실시예의 구성도4 is a block diagram of an embodiment according to the present invention

*도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1: 하우징 2: 샤프트1: housing 2: shaft

10; 본 발명의 드럼형 토션스프링10; Drum type torsion spring of the present invention

11: 마찰부 13: 키이부11: friction part 13: kiibu

15: 개방부 16: 그루브15: opening 16: groove

100: 종래 기술의 토션스프링100: conventional torsion spring

본 발명은 힌지장치에 관한 것으로서, 특히 금속분말사출성형법을 이용하여 단일한 드럼체로 형성됨으로써, 소음발생, 정렬변형의 염려가 없고 조립공수가 획기적으로 감축되어 생산성을 획기적으로 향상시킴과 아울러 스프링강재의 탄성특질이 우수하게 발현되어 품질특성을 현저히 향상되도록 하는 금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치에 관한 것이다.The present invention relates to a hinge device, and in particular, by forming a single drum body using the metal powder injection molding method, there is no fear of noise generation and alignment deformation, and significantly reduces the assembly labor and significantly improves the productivity of the spring steel material. The present invention relates to a method for manufacturing a torsion spring for a hinge device by a metal powder injection molding method in which elastic properties are excellently expressed and a quality characteristic is significantly improved, and a hinge device having the torsion spring.

일반적으로 힌지장치는 노트북 컴퓨터와 휴대폰, 냉장고, 복사기 등등 여러분야에서 광범위하게 적용되어 사용되고 있는데, 이러한 힌지장치는 대상물체를 일정한 각도나 위치로 유지시킴과 아울러 동작이 슬로우 모션으로 작동되어야 만이 제품에 충격을 주지 않게 되므로 제품수명이 연장될 수 있다. In general, the hinge device is widely used in notebook computers, mobile phones, refrigerators, copiers, etc., and it is used only when the object is operated in slow motion while maintaining the object at an angle or position. The product life can be extended because it does not give impact.

따라서 최근에는 힌지장치가 일정한 토오크를 유지하면서 회전되게 하여, 품질의 고급화를 실현시키고 있는 추세이며, 이를 위해 션스프링을 이용하는 마찰힌지장치가 널리 사용되고 있다. 마찰힌지장치는 힌지장치에 내장되는 토션스프링의 샤프트에 대한 가압력에 의해 예를 들면 노트북의 디스플레이를 본체에 대해 적절한 각도를 유지하며, 회전동작시 마찰에 따른 동적 토오크를 발생시켜 대상물체의 급격한 동작을 억제하고 충격을 완충시켜 동작이 스무스하게 이루어지도록 한다.Therefore, in recent years, the hinge device is rotated while maintaining a constant torque, and the trend of realizing high quality, and for this purpose, a friction hinge device using a shunt spring is widely used. The friction hinge device maintains an appropriate angle with respect to the main body of the notebook display, for example, by the pressing force on the shaft of the torsion spring built into the hinge device. Suppresses the shock and cushions the shock to make the operation smooth.

이러한 토션스프링을 이용하는 종래 기술의 마찰 힌지장치는 도 1에 일 실시 예가 도시된 바와 같이, 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징(1)과, 상기 홀에 결합되고 회전체에 장착되는 샤프트(2)와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 클립형 토션스프링(100)으로 구성된다.The friction hinge device of the prior art using such a torsion spring has a housing (1) mounted in the main body having a hole penetrated in the longitudinal direction, as shown in FIG. It consists of a clip-shaped torsion spring (100) consisting of a shaft (2) to be mounted, a friction portion coupled to the shaft, and a key portion for preventing rotation in the housing.

상기 클립형 토션 스프링은 판스프링체 소자로 이루어지며 샤프트에는 이러한 클립형 소자가 집합적으로 조립된다.The clip-shaped torsion spring is composed of a leaf spring element, and the clip-like element is collectively assembled to the shaft.

상기 클립형 토션스프링은 샤프트(2)에 다수가 집합적으로 결합되면서 샤프트 회전시 샤프트(2) 외주면이 토션스프링의 마찰부(111) 내주면과 마찰을 일으키며 회전하여 모니터가 저속으로 개폐되어 기기를 보호하고 사용감을 향상시키게 된다. The clip type torsion spring is coupled to the shaft (2) collectively coupled to rotate the shaft (2) outer circumference causing friction with the inner peripheral surface of the friction portion 111 of the torsion spring when the shaft rotates to protect the device by opening and closing at low speed And improves the feeling of use.

그러나, 이와 같은 종래 기술은 다수의 클립형 소자가 집합적으로 조립됨으로 조립공수가 과다하게 소요되고 동작소음이 발생되는 한편, 클립형 소자 간에 정렬방향이 틀어지게 되어 힌지동작의 품질을 저하시키는 문제점이 있었다.However, such a prior art has a problem of deteriorating the quality of the hinge operation because the number of clip-type elements are assembled as a large number of assembly labor and operation noise is generated, the alignment direction is misaligned between the clip-type elements.

한편, 이러한 문제점에 대한 대안으로서, 다수의 클립형 소자를 일체로 압출성형하여 제작되고 있기도 하다.On the other hand, as an alternative to this problem, a plurality of clip-type devices may be manufactured by extrusion molding integrally.

그러나 상기 압출공법에 의해 성형된 일체형 토션스프링은 정밀도가 저하되며, 특히 탄성특질이 떨어져 품질특성을 저하시키는 치명적인 문제점이 있었다.However, the integral torsion spring molded by the extrusion method has a low accuracy, in particular, the elastic properties are deteriorated, there is a fatal problem of lowering the quality characteristics.

본 발명은 상기한 문제점을 해소하기 위하여 안출된 것으로서, The present invention has been made to solve the above problems,                         

본 발명의 목적은, 금속분말사출성형법을 이용하여 단일한 드럼체로 형성됨으로써, 소음발생, 정렬변형의 염려가 없고 조립공수가 획기적으로 감축되어 생산성을 획기적으로 향상시킴과 아울러 스프링강재의 탄성특질이 우수하게 발현되어 품질특성을 현저히 향상토록 하는 금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치를 제공함에 있다.
The object of the present invention is to form a single drum body by using the metal powder injection molding method, there is no fear of noise generation and alignment deformation, significantly reducing the assembly labor is greatly improved productivity and excellent elastic properties of the spring steel The present invention provides a method for manufacturing a torsion spring for a hinge device by a metal powder injection molding method which is expressed so as to significantly improve quality characteristics, and a hinge device having the torsion spring.

상기한 목적을 달성하기 위한 본 발명에 따른 금속분말사출성형법에 의한 힌지장치용 토션 스프링의 제조방법은, 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링을 포함하는 힌지장치의 제조방법에 있어서, Method for producing a torsion spring for the hinge device by the metal powder injection molding method according to the present invention for achieving the above object, the housing having a hole penetrated in the longitudinal direction and mounted to the main body, coupled to the hole and the rotating body In the manufacturing method of the hinge device comprising a torsion spring comprising a shaft mounted to the, a friction portion coupled to the shaft and the key portion for preventing rotation in the housing,

상기 토션스프링은, The torsion spring is,

스프링강인 SM50C 또는 SK5 또는 SWC 또는 SWPB 금속분말을 포함하여 이루어지는 원료분말과 결합제를 혼합하여 피드스톡을 제조하고, A feedstock is prepared by mixing a raw material powder and a binder including a SM50C or SK5 or SWC or SWPB metal powder, which is a spring steel,

상기 피드스톡을 금형내로 고압 사출 성형하고,High pressure injection molding the feedstock into a mold,

사출된 성형체로부터 용매추출 및 열분해법을 이용하여 결합제를 제거하고,The binder is removed from the injected molded body using solvent extraction and pyrolysis.

결합제가 제거된 성형체를 소결하여 제조되는 것을 특징으로 한다.It is characterized in that it is produced by sintering the molded body from which the binder is removed.

상기 원료분말은 스프링강인 SM50C 또는 SK5 또는 SWC 또는 SWPB 금속분말을 포함하여 이루어진다.The raw material powder is made of a spring steel SM50C or SK5 or SWC or SWPB metal powder.

또한, 본 발명에 따른 금속분말사출성형법에 의해 제조되는 힌지장치용 토션 스프링은, 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링을 포함하는 힌지장치에 있어서, In addition, the torsion spring for the hinge device manufactured by the metal powder injection molding method according to the present invention, the housing having a hole penetrated in the longitudinal direction and mounted to the main body, a shaft coupled to the hole and mounted to the rotating body, In the hinge device comprising a torsion spring consisting of a friction portion coupled to the shaft and a key portion for preventing rotation in the housing,

상기 토션스프링은, 상기 금속분말사출성형방법에 의해 제조되고 The torsion spring is manufactured by the metal powder injection molding method

상기 샤프트에 단일체로서 결합되기 위한 길이로 형성되는 드럼형 토션스프링으로 구성됨을 특징으로 한다.Characterized in that it consists of a drum-shaped torsion spring formed to a length to be coupled as a single body to the shaft.

이하, 본 발명의 금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치에 대한 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, an embodiment of a manufacturing method of a torsion spring for a hinge device by the metal powder injection molding method of the present invention and a hinge device having the torsion spring will be described in detail with reference to the accompanying drawings.

본 발명은 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링을 포함하는 힌지장치의 제조방법에 있어서, 상기 토션스프링은 금속분말사출성형법에 의하여 제조되는 것이다.The present invention comprises a housing having a hole penetrated in the longitudinal direction and mounted to the main body, a shaft coupled to the hole and mounted to the rotating body, a friction portion coupled to the shaft, and a key portion for preventing rotation in the housing. In the method of manufacturing a hinge device comprising a torsion spring, the torsion spring is manufactured by a metal powder injection molding method.

상기 금속분말사출성형법은 스프링강인 SM50C, SK5, SWC 또는 SWPB 등의 금속분말을 포함하는 원료분말과 고분자 결합제를 혼합하여 피드스톡을 제조하고, 상기 피드스톡을 금형내로 고압 사출 성형한 다음, 사출된 성형체로부터 용매추출 및 열분해법을 이용하여 고분자 결합제를 제거(Debinding)하고, 결합제가 제거된 성형 체를 소결(Sintering)하여 제조된다.In the metal powder injection molding method, a feedstock is prepared by mixing a raw material powder including a metal powder such as SM50C, SK5, SWC or SWPB, which is a spring steel, and a polymer binder, and injection molding the feedstock into a mold and then injection molding the feedstock. It is prepared by removing the polymer binder from the molded body by using solvent extraction and pyrolysis, and then sintering the molded body from which the binder is removed.

이러한 금속분말사출성형공법은 금속분말야금기술과 사출성형기술의 결합으로 복잡하고 정밀한 3차원부품의 실형상 제조를 후가공이 거의 필요없이 대량 생산할 수가 있기 때문에 제조원가를 대폭 절감할 수가 있을 뿐 만 아니라 원료분말인 스프링강의 탄성특질을 양호하게 발현하여 일정한 토오크를 발생시킨다.This metal powder injection molding method is a combination of metal powder metallurgy technology and injection molding technology, which can produce large quantities of complex and precise three-dimensional parts with little or no post-processing. The elastic properties of the spring steel, which is a powder, can be expressed well and generate a constant torque.

또한, 본 발명에 따른 금속분말사출성형법에 의해 제조되는 힌지장치용 토션스프링을 구비한 힌지장치는, 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링을 포함하는 힌지장치에 있어서, 상기 토션스프링은 상기 금속분말사출성형방법에 의해 제조되고, 도 2에 도시된 바와 같이, 상기 샤프트(2)에 단일체로서 결합되기 위한 길이로 형성되는 드럼형 토션스프링(10)으로 구성되는 것이다.In addition, a hinge device having a torsion spring for a hinge device manufactured by a metal powder injection molding method according to the present invention includes a housing having a hole penetrated in a longitudinal direction and mounted to a main body, and coupled to the hole to a rotating body. A hinge device comprising a shaft to be mounted, a torsion spring comprising a friction part coupled to the shaft, and a key part for preventing rotation in the housing, wherein the torsion spring is manufactured by the metal powder injection molding method, and FIG. As shown in Figure 2, it is composed of a drum-shaped torsion spring (10) formed to a length to be coupled as a single body to the shaft (2).

도 3a 내지 도 3g는 이와 같은 본 발명에 따른 드럼형 토션스프링(10)의 실시예들을 예시한 것으로서, 상기 드럼형 토션스프링(10)은 마찰부(11) 일측에 개방부(15)가 형성됨이 바람직하다.3A to 3G illustrate examples of the drum type torsion spring 10 according to the present invention, wherein the drum type torsion spring 10 has an opening 15 formed at one side of the friction part 11. This is preferred.

또한, 드럼형 토션스프링(10)의 마찰부(11) 내주면에는 윤활제 충진용 그루브(16)가 형성됨이 바람직하다(도 3b 내지 도 3g 참조).In addition, it is preferable that a groove for filling lubricant 16 is formed on the inner circumferential surface of the friction portion 11 of the drum type torsion spring 10 (see FIGS. 3B to 3G).

그리고, 상기 드럼형 토션스프링(10)은 마찰부(11)의 단면두께가 균등하게 형성될 수도 있으나(도 3c 참조), 개방부(15)의 끝단을 향하여 점차적으로 박형화될 수 있다(도 3a, 3b, 3d, 3e 참조).In addition, the drum type torsion spring 10 may have an even cross-sectional thickness of the friction part 11 (see FIG. 3C), but may be gradually thinned toward the end of the opening 15 (FIG. 3A). , 3b, 3d, 3e).

상기 드럼형 토션스프링(10)은 마찰부(11)의 단면두께가 개방부를 중심으로 양측이 대칭으로 형성되거나(도 3a, 3b, 3c, 3e 참조), 비대칭으로 형성될 수 있다(도 3d, 3f, 3g 참조).The drum-shaped torsion spring 10 may be formed symmetrically on both sides of the cross section of the friction portion 11 about the opening (see FIGS. 3A, 3B, 3C, and 3E) or asymmetrically (FIG. 3D, 3f, 3g).

또한, 상기 드럼형 토션스프링(10)은 마찰부(11) 주위에 키이부(17)가 1개소 이상 더 형성될 수도 있다(도 3f, 3g 참조).In addition, the drum type torsion spring 10 may have one or more key portions 17 formed around the friction portion 11 (see FIGS. 3F and 3G).

또한, 상기 키이부(13)는 수직상 길이(h)가 짧고 수평돌출부(13a)가 라운드형성되거나(도 3a 내지 도 3d 참조), 수직상 길이(h)가 길고 수평돌출부(13a)에 모서리가 형성되어 있어도 무방하다(도 3e 내지 도 3g 참조).In addition, the key portion 13 has a short vertical length h and a horizontal protrusion 13a is rounded (refer to FIGS. 3A to 3D), or a long vertical length h and a corner at the horizontal protrusion 13a. May be formed (see FIGS. 3E to 3G).

또한, 상기 드럼형 토션스프링(10)은 하방에 형성되는 키이부(13)에 오목부(13b)가 형성될 수도 있다(도 3f, 3g 참조). 이 경우 키이부(13)의 수직상 길이(h)는 상대적으로 길고 모서리(13c)가 형성될 수 있다.In addition, the drum type torsion spring 10 may have a recess 13b formed in the key portion 13 formed below (see FIGS. 3F and 3G). In this case, the vertical length h of the key portion 13 may be relatively long and an edge 13c may be formed.

이러한 구성의 드럼형 토션스프링(10)은 샤프트 회전시 상기 개방부(15)가 형성된 마찰부(11)의 끝단부 중 회전방향측에 위치한 부분은 외측으로 밀려지게 되고, 동시에 회전방향 반대측에 위치한 마찰부(11)의 끝단부는 컬링상태가 된다. The drum-shaped torsion spring 10 of this configuration has a portion located on the rotational side of the end portion of the friction portion 11 in which the opening portion 15 is formed when the shaft rotates, and is pushed outward, and is located on the opposite side of the rotational direction. The end of the friction portion 11 is curled.

따라서 샤프트(2) 외주면은 마찰부(11) 내주면과 마찰을 일으키며 저속으로 회전하게 되고, 동시에 마찰력으로 인해 소정의 토오크를 지니게 되어 일정속도를 유지하면서 저속 동작된다. Therefore, the outer circumferential surface of the shaft 2 rotates at a low speed, causing friction with the inner circumferential surface of the friction part 11, and at the same time, the frictional force has a predetermined torque, and operates at a low speed while maintaining a constant speed.

상기 드럼형 토션스프링(10)의 형상은 이 외에도 다양하게 형성될 수 있다. The drum-shaped torsion spring 10 may be variously formed in addition to this.

본 발명의 다른 실시예로서, 도 4에 도시된 바와 같이, 상기 샤프트(2)에는 상기 드럼형 토션스프링(10)과 하나 이상의 클립형 토션스프링(100)이 조합 결합될 수 있다.As another embodiment of the present invention, as shown in FIG. 4, the drum type torsion spring 10 and one or more clip type torsion springs 100 may be combined to the shaft 2.

이러한 구성은 얇은 판상의 클립형 토션스프링(100)의 수량을 가감하여 토오크 조정을 용이하게 할 수 있다.This configuration can facilitate torque adjustment by adding or subtracting the quantity of the thin plate-shaped torsion spring 100.

이와 같은 구성의 본 발명에 따른 드럼형 토션스프링(10)은 종래 기술의 클립형 토션스프링 소자 다수가 단일한 드럼체로 형성됨으로써, 소음발생이 없고 정렬이 틀어질 염려가 없으며 조립공수가 획기적으로 감축되어 생산성을 현저히 향상시키게 된다.The drum-type torsion spring 10 according to the present invention having such a configuration is formed by a single drum body of a plurality of clip-type torsion spring elements of the prior art, so that there is no noise, there is no fear of misalignment, and the assembly labor is drastically reduced to productivity. Will significantly improve.

또한, 금속분말사출성형법으로 제조됨으로써 단일한 드럼체로 형성될지라도 스프링강재의 탄성특질이 우수하게 발현되므로 컬링 및 이에 따른 토오크를 발생시키게 되어 품질특성을 현저히 향상시키게 된다.In addition, by being produced by the metal powder injection molding method, even if formed as a single drum body, the elastic properties of the spring steel are excellently expressed, which results in curling and the resulting torque, thereby significantly improving the quality characteristics.

이와 아울러, 제조특성이 매우 양호하여 생산성을 향상시키며 제조원가를 현저히 절감시킨다.In addition, the manufacturing characteristics are very good, improving productivity and significantly reducing manufacturing costs.

이상, 본 발명의 바람직한 실시예를 첨부된 도면들을 참조로 설명하였다. 여기서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. 따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.In the above, preferred embodiments of the present invention have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, but should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

이상에서 상세히 살펴본 바와 같이, 본 발명에 따른 금속분말사출성형법에 의한 힌지장치용 토션스프링의 제조방법 및 그 토션스프링을 구비한 힌지장치는, 토션스프링을 금속분말사출성형법을 이용하여 단일한 드럼체로 형성됨으로써, 소음발생, 정렬변형의 염려가 없고 조립공수가 획기적으로 감축되어 생산성을 획기적으로 향상시킴과 아울러 스프링강재의 탄성특질이 우수하게 발현되어 품질특성을 현저히 향상시키는 뛰어난 효과가 있다.
As described in detail above, the manufacturing method of the torsion spring for the hinge device by the metal powder injection molding method according to the present invention, and the hinge device provided with the torsion spring, the torsion spring in a single drum body using the metal powder injection molding method By being formed, there is no fear of noise and alignment deformation, and the assembly labor is greatly reduced to improve productivity, and the elastic properties of the spring steel are excellently expressed, thereby having an excellent effect of remarkably improving the quality characteristics.

Claims (11)

길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링(10)을 포함하는 힌지장치의 제조방법에 있어서,A torsion spring comprising a housing mounted to the body and having a hole penetrated in the longitudinal direction, a shaft coupled to the hole and mounted to the rotating body, a friction portion coupled to the shaft, and a key portion for preventing rotation in the housing. In the manufacturing method of the hinge apparatus containing (10), 상기 토션스프링(10)은, The torsion spring 10, 스프링강인 SM50C 또는 SK5 또는 SWC 또는 SWPB 금속분말을 포함하여 이루어지는 원료분말과 결합제를 혼합하여 피드스톡을 제조하고, A feedstock is prepared by mixing a raw material powder and a binder including a SM50C or SK5 or SWC or SWPB metal powder, which is a spring steel, 상기 피드스톡을 금형내로 고압 사출 성형하고,High pressure injection molding the feedstock into a mold, 사출된 성형체로부터 용매추출 및 열분해법을 이용하여 결합제를 제거하고,The binder is removed from the injected molded body using solvent extraction and pyrolysis. 결합제가 제거된 성형체를 소결하여 제조되는 것을 특징으로 하는 금속분말사출성형법에 의한 힌지장치의 토션스프링 제조방법.A method for manufacturing a torsion spring of a hinge device according to a metal powder injection molding method, characterized by sintering a molded body from which a binder has been removed. 삭제delete 길이 방향으로 관통된 홀을 갖으며 본체에 장착되는 하우징과, 상기 홀에 결합되고 회전체에 장착되는 샤프트와, 상기 샤프트에 결합되는 마찰부와 하우징에서 회전이 저지되기 위한 키이부로 구성되는 토션스프링(10)을 포함하는 힌지장치에 있어서, A torsion spring comprising a housing mounted to the body and having a hole penetrated in the longitudinal direction, a shaft coupled to the hole and mounted to the rotating body, a friction portion coupled to the shaft, and a key portion for preventing rotation in the housing. A hinge device comprising (10), 상기 토션스프링(10)은, 상기 제1항의 금속분말사출성형방법에 의해 제조되고,The torsion spring 10 is manufactured by the metal powder injection molding method of claim 1, 상기 샤프트에 단일체로서 결합되기 위한 길이로 형성되는 드럼형 토션스프링(10)으로 구성됨을 특징을 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.A hinge apparatus having a torsion spring manufactured by a metal powder injection molding method, characterized in that it comprises a drum-shaped torsion spring (10) formed to a length to be coupled to the shaft as a single body. 제 3항에 있어서,The method of claim 3, wherein 상기 드럼형 토션스프링(10)은 마찰부(11) 일측에 개방부(15)가 형성됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The drum type torsion spring (10) is a hinge device having a torsion spring manufactured by a metal powder injection molding method, characterized in that the open portion (15) is formed on one side of the friction portion (11). 제3항 또는 제 4항에 있어서,The method according to claim 3 or 4, 상기 드럼형 토션스프링(10)의 마찰부(11) 내주면에는 윤활제 충진용 그루브(16)가 형성됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.A hinge device having a torsion spring manufactured by a metal powder injection molding method, wherein a groove for filling lubricant is formed on the inner circumferential surface of the friction part 11 of the drum-type torsion spring 10. 제 3항 또는 제 4항에 있어서,The method according to claim 3 or 4, 상기 드럼형 토션스프링(10)은 마찰부(11)의 단면두께가 개방부의 끝단을 향하여 점차적으로 박형화됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The drum type torsion spring (10) is a hinge device having a torsion spring manufactured by a metal powder injection molding method, characterized in that the cross-sectional thickness of the friction portion (11) is gradually thinned toward the end of the opening. 제 3항 또는 제 4항에 있어서,The method according to claim 3 or 4, 상기 드럼형 토션스프링(10)은 마찰부(11)의 단면두께가 개방부를 중심으로 양측이 대칭으로 형성됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The drum-type torsion spring (10) is a hinge device having a torsion spring manufactured by a metal powder injection molding method, characterized in that the cross-sectional thickness of the friction portion (11) is formed symmetrically on both sides. 제 3항 또는 제 4항에 있어서,The method according to claim 3 or 4, 상기 드럼형 토션스프링(10)은 마찰부(11)의 단면두께가 개방부를 중심으로 양측이 비대칭으로 형성됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The drum type torsion spring (10) is a hinge device having a torsion spring manufactured by a metal powder injection molding method, characterized in that the cross-sectional thickness of the friction portion (11) is formed asymmetrically on both sides. 삭제delete 제 3항 또는 제 4항에 있어서,The method according to claim 3 or 4, 상기 드럼형 토션스프링(10)은 하방에 형성되는 키이부(13)에 오목부(13b)가 형성됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The drum type torsion spring (10) is a hinge device having a torsion spring manufactured by a metal powder injection molding method, characterized in that the recessed portion (13b) is formed in the key portion (13) formed below. 제 3항에 있어서,The method of claim 3, wherein 상기 샤프트(2)에는 상기 드럼형 토션스프링(10)과 하나 이상의 클립형 토션스프링(100)이 조합 결합됨을 특징으로 하는 금속분말사출성형법에 의해 제조되는 토션스프링을 구비한 힌지장치.The shaft (2) is a hinge device having a torsion spring manufactured by a metal powder injection molding method characterized in that the combination of the drum-type torsion spring (10) and one or more clip-shaped torsion spring (100).
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101399508B1 (en) 2012-04-25 2014-05-27 지피에스코리아(주) Mold for forming hinge groove of particle foam plastic and method for forming hinge groove using the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102207682B1 (en) * 2019-05-31 2021-01-25 김춘동 Spherical surface moving hinge connected with suctioncup

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10281138A (en) 1997-04-01 1998-10-20 Sharp Corp Hinge mechanism
JP2001032822A (en) 1999-05-20 2001-02-06 Hyun-Jon Bee Friction hinge device
KR20010080705A (en) * 1998-12-08 2001-08-22 로날드 디. 맥크레이 Method and Apparatus for Making a Throughdried Tissue Product Without a Throughdrying Fabric
US20040244142A1 (en) 2003-06-06 2004-12-09 Manabu Ochiai Checker-equipped door hinge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10281138A (en) 1997-04-01 1998-10-20 Sharp Corp Hinge mechanism
KR20010080705A (en) * 1998-12-08 2001-08-22 로날드 디. 맥크레이 Method and Apparatus for Making a Throughdried Tissue Product Without a Throughdrying Fabric
JP2001032822A (en) 1999-05-20 2001-02-06 Hyun-Jon Bee Friction hinge device
US20040244142A1 (en) 2003-06-06 2004-12-09 Manabu Ochiai Checker-equipped door hinge

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
2001807050000
등록실용신안 13032822 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101399508B1 (en) 2012-04-25 2014-05-27 지피에스코리아(주) Mold for forming hinge groove of particle foam plastic and method for forming hinge groove using the same

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