KR100923530B1 - Damper pulley of automobile - Google Patents

Damper pulley of automobile Download PDF

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Publication number
KR100923530B1
KR100923530B1 KR1020080003454A KR20080003454A KR100923530B1 KR 100923530 B1 KR100923530 B1 KR 100923530B1 KR 1020080003454 A KR1020080003454 A KR 1020080003454A KR 20080003454 A KR20080003454 A KR 20080003454A KR 100923530 B1 KR100923530 B1 KR 100923530B1
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KR
South Korea
Prior art keywords
pulley
cap
arm
automobile
sound absorbing
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KR1020080003454A
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Korean (ko)
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KR20090077474A (en
Inventor
김종석
서창명
이종희
송정도
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평화산업주식회사
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Priority to KR1020080003454A priority Critical patent/KR100923530B1/en
Publication of KR20090077474A publication Critical patent/KR20090077474A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system

Abstract

본 발명은 자동차의 댐퍼 풀리에 관한 것으로, 특히 자동차의 엔진 크랭크 샤프트 제일 앞에 장착되는 댐퍼 풀리에 관한 것으로, 본 발명의 주요 구성은, 풀리아암과, 그 풀리 아암과 풀리 아암 사이에 설치하는 흡음재를 포함하는 자동차의 댐퍼 풀리에 있어서, 상기한 흡음재를 덮는 캡(15)을, 풀리아암(2)의 내경면(20)에 고정한 구조를 갖는 것을 특징으로 하며, 상기한 캡(15)의 외경 하단은 고정구(16)를 형성하고, 상기한 풀리아암(2)의 내경면(20)에는 걸림홈(18)을 형성한 것을 특징으로 하며, 상기한 캡(15)의 고정구(16) 하단은 외경으로 돌출되어 벌어지는 구조의 걸림턱(17)을 형성한 것을 특징으로 하며, 상기한 캡(15)은 플라스틱 재질인 것을 특징으로 한다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper pulley of an automobile, and more particularly, to a damper pulley mounted in front of an engine crankshaft of an automobile. The main configuration of the present invention includes a pulley arm and a sound absorbing material provided between the pulley arm and the pulley arm. In the damper pulley of the automobile included, the cap 15 covering the sound absorbing material is fixed to the inner diameter surface 20 of the pulley arm 2, characterized in that the outer diameter lower end of the cap 15 Silver fastener 16 is formed, characterized in that the engaging groove 18 is formed in the inner diameter surface 20 of the pulley arm (2), the lower end of the fastener 16 of the cap 15 is the outer diameter It characterized in that the locking projection 17 is formed to protrude into the opening, the cap 15 is characterized in that the plastic material.

자동차, 댐퍼 풀리 Car, damper pulley

Description

자동차의 댐퍼 풀리{damper pulley of automobile}Damper pulley of automobile

본 발명은 자동차의 댐퍼 풀리에 관한 것으로, 특히 자동차의 엔진 크랭크 샤프트 제일 앞에 장착되는 댐퍼 풀리에 관한 것이다The present invention relates to a damper pulley of an automobile, and more particularly, to a damper pulley mounted in front of an engine crankshaft of an automobile.

자동차의 댐퍼 풀리는, 워터 펌프과 파워스티어링 구동을 위한 벨트 전동용으로 사용되는 것으로, 일반적으로 풀리의 중량을 가볍게 하기 위해 풀리의 중앙 외주 여러곳에 통공을 형성시켜 댐퍼 풀리의 중량을 가볍게 해주고 있다The damper pulley of automobile is used for belt transmission for driving water pump and power steering. In order to reduce the weight of the pulley, the damper pulley is formed with a hole in the center circumference of the pulley to reduce the weight of the damper pulley.

그러나 그 통공을 통하여 엔진 크랭크 샤프트에서 발생되는 소음과 진동이 발생되는 바, 이를 저감시켜 주는 목적으로 흡음재를 그 통공에 설치한다.However, the noise and vibration generated in the engine crankshaft is generated through the through hole, and a sound absorbing material is installed in the through hole for the purpose of reducing the noise.

도 1 은 종래의 댐퍼 풀리의 주요 구성에 대한 단면도로, 도시한 바와 같이, 댐퍼 풀리에는 흡음재(4)가 설치된다. 흡음재의 설치 목적은, 상술한 바와 같이, 엔진의 회전에 따라 발생되는 진동에 의한 소음이, 이 흡음재가 설치되는 통공을 통하여 외부로 나오는 것을 방지하기 위해 설치한다. 이 흡음재(5)를 고정하기 위하여 흡음재(4)의 외경 쪽으로 고무(1)와 함께 볼트(3)가 체결되는 형식으로 풀리아암(2)에 3 개 정도 장착된다.1 is a cross-sectional view of a main structure of a conventional damper pulley, and as shown, a damper pulley is provided with a sound absorbing material 4. The purpose of installing the sound absorbing material is to prevent noise caused by vibration generated by the rotation of the engine from coming out through the through hole provided with the sound absorbing material, as described above. In order to fix this sound absorbing material 5, about 3 pieces are attached to the pulley arm 2 so that the bolt 3 may be fastened together with the rubber 1 toward the outer diameter of the sound absorbing material 4.

이와 같은 종래의 구성에 의하면 볼트(3)가 3 개 소요되고, 이 볼트(3) 고정을 위한 볼트공(6)을 풀리아암(2)에 뚫어 주어야 하는 번거로운 작업이 수반된다. 즉, 이러한 종래 작업에 의하면 그 작업 공수가 많이 소요되고 고가의 볼트 부품이 소요되므로 원가 상승의 원인이 된다. According to such a conventional configuration, three bolts 3 are required, which involves cumbersome work of drilling a bolt hole 6 for fixing the bolt 3 to the pulley arm 2. That is, according to such a conventional work, the labor cost is high and expensive bolt parts are used, which causes cost increase.

본 발명은 상기한 점을 감안하여 발명한 것으로, 본 발명의 목적은 부품수가 적게 들고, 작업 공수를 획기적으로 줄이고 제조비 원가를 절감할 수 있고 풀리의 강도를 더욱 높일 수 있는 구조를 제공함에 본 발명의 목적이 있다The present invention has been invented in view of the above points, and an object of the present invention is to provide a structure that can reduce the number of parts, significantly reduce the labor cost and reduce the manufacturing cost and further increase the strength of the pulley. Have a purpose

상기한 본 발명의 목적을 달성하기 위한 본 발명의 주요 구성은, 풀리아암과, 그 풀리 아암과 풀리 아암 사이에 설치하는 흡음재를 포함하는 자동차의 댐퍼 풀리에 있어서, 상기한 흡음재를 덮는 캡(15)을, 풀리아암(2)의 내경면(20)에 고정한 구조를 갖는 것을 특징으로 하며, 상기한 캡(15)의 외경 하단은 고정구(16)를 형성하고, 상기한 풀리아암(2)의 내경면(20)에는 걸림홈(18)을 형성한 것을 특징으로 하며, 상기한 캡(15)의 고정구(16) 하단은 외경으로 돌출되어 벌어지는 구조의 걸림턱(17)을 형성한 것을 특징으로 하며, 상기한 캡(15)은 플라스틱 재질인 것을 특징으로 한다. The main constitution of the present invention for achieving the above object of the present invention is a damper pulley of an automobile comprising a pulley arm and a sound absorbing material provided between the pulley arm and the pulley arm, the cap (15) covering the sound absorbing material. ), Characterized in that it has a structure fixed to the inner diameter surface 20 of the pullia arm (2), the lower end of the outer diameter of the cap (15) forms a fixture (16), The inner diameter surface 20 is characterized in that the locking groove 18 is formed, the lower end of the fixture 16 of the cap 15 is characterized in that the locking projection 17 is formed to protrude to the outer diameter. And, the cap 15 is characterized in that the plastic material.

본 발명에 의하면 풀리 아암(2)에 나사 가공이 필요 없고, 부품수를 줄이고 가격을 낮추고, 중량을 가볍게 하는 경량화에 일조를 할 수 있다According to the present invention, there is no need for screwing the pulley arm 2, which can contribute to the weight reduction of reducing the number of parts, reducing the price, and reducing the weight.

또한 풀리아암(2)에 구멍을 뚫치 않으므로 풀리의 구조가 더욱 견고하게 그 강성을 유지할 수 있다In addition, since the hole is not drilled in the pullia arm 2, the structure of the pulley can be more firmly maintained.

본 발명의 구성을 이하, 상술한다The configuration of the present invention will be described below.

도 2 는 본 발명에 따른 댐퍼 풀리는 도시한다2 shows a damper pulley according to the invention.

도시한 바와 같이, 본 발명에서는 흡음재(16)를 덮는 캡(15)을 형성시켜 이캡(15)을 가압에 의해 간단히 체결될 수 있게 하였다. 캡(15)은 바람직하기로는 중량이 가볍고 저가이면서 구조적으로 탄성을 가질 수 있는 플라스틱 재료로 사용한다. 그 외 다른 재료로 사용할 수 있음은 물론이다As shown in the present invention, the cap 15 covering the sound absorbing material 16 is formed so that the cap 15 can be simply fastened by pressing. The cap 15 is preferably used as a plastic material that is light in weight, inexpensive and structurally elastic. Of course, it can be used with other materials.

캡(15)의 외주쪽 하단은 고정구(16)가 형성되고 그 고정구(16) 하단에는 예를 들어, 밖으로 약간 벌어지는 걸림턱(17)을 형성하고 이와 대응하는 풀리의 내경면(20)에는 걸림홈(18)을 형성시킨다. 캡(15)은 가벼운 흡음재(14)를 단지 고정시켜 주는 역할만 하므로, 종래와 같은 견고한 볼팅 등의 체결이 불필요하며, 이러한 본 바렴에 따른 가압 체결 방식으로도 흡음재(14)가 풀리에서 이탈되지 않고 확실히 고정시켜 줄 수 있다The outer circumferential lower end of the cap 15 is formed with a fastener 16, and the lower end of the fastener 16 forms, for example, a catching jaw 17 which slightly opens outwardly and is caught by the inner diameter surface 20 of the corresponding pulley. The groove 18 is formed. Since the cap 15 merely serves to fix the light absorbing material 14, it is not necessary to fasten a rigid bolting or the like as in the prior art, and the sound absorbing material 14 is not detached from the pulley even by the pressure fastening method according to the present invention. I can fix it well without

도 3 은 도 2 의 구조를 측면에서 본 도면으로, 흡음재(14)의 설치 위치를 참고로 보여 주기 위해 단지 일부 주요 구성만 도시하였다FIG. 3 is a side view of the structure of FIG. 2, showing only some main components to show the installation position of the sound absorbing material 14 by reference.

도시한 바와 같이, 풀리아암(2)에 뚫려 있는 공간에 흡음재(14)가 고정됨을 보여 주고 있다As shown, it is shown that the sound absorbing material 14 is fixed in the space drilled in the pulia arm (2).

도 1 은 종래의 댐퍼 풀리 요부를 단면으로 예시하는 도면1 is a cross-sectional view illustrating a conventional damper pulley recessed portion;

도 2 는 본 발명에 따른 댐퍼 풀리를 예시하는 도면2 illustrates a damper pulley according to the invention.

도 3 은 도 2 를 측면에서 본 요부도로, 흡음재의 설치 상태를 보여 주기 위한 도면FIG. 3 is a main view showing the side of FIG. 2, illustrating a state in which sound absorbing materials are installed; FIG.

Claims (4)

풀리아암과, 그 풀리 아암과 풀리 아암 사이에 설치하는 흡음재를 포함하는 자동차의 댐퍼 풀리에 있어서,In the damper pulley of an automobile including a pulley arm and a sound absorbing material provided between the pulley arm and the pulley arm, 상기한 흡음재를 덮는 캡(15)을, 풀리아암(2)의 내경면(20)에 고정하되, 상기한 캡(15)의 외경 하단에는 외경으로 돌출되어 벌어지는 걸림턱(17)을 갖는 고정구(16)를 형성하고, 상기한 풀리아암(2)의 내경면(20)에는 걸림홈(18)을 형성한 것을 특징으로 하는 자동차의 댐퍼 풀리.The cap 15 covering the sound absorbing material is fixed to the inner diameter surface 20 of the pulley arm 2, and a fastener having a locking step 17 that protrudes to the outer diameter at the lower end of the outer diameter of the cap 15. 16, and the damper pulley of the vehicle, characterized in that the engaging groove (18) is formed in the inner diameter surface (20) of the pullia arm (2). 삭제delete 삭제delete 제 1 항에 있어서,The method of claim 1, 상기한 캡(15)은 플라스틱 재질인 것을 특징으로 하는 자동차의 댐퍼 풀리The cap 15 is a damper pulley of an automobile, characterized in that the plastic material
KR1020080003454A 2008-01-11 2008-01-11 Damper pulley of automobile KR100923530B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101300051B1 (en) * 2010-11-18 2013-08-29 최정근 A sound absorbing and insulating plugl for preventing noise of vehicle engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019120207A (en) * 2018-01-09 2019-07-22 いすゞ自動車株式会社 Crank pulley

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727205A (en) * 1993-07-07 1995-01-27 Bridgestone Corp Double mass damper pulley
KR19990010353A (en) * 1997-07-16 1999-02-18 박병재 Vibration damper pulley on crankshaft

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0727205A (en) * 1993-07-07 1995-01-27 Bridgestone Corp Double mass damper pulley
KR19990010353A (en) * 1997-07-16 1999-02-18 박병재 Vibration damper pulley on crankshaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101300051B1 (en) * 2010-11-18 2013-08-29 최정근 A sound absorbing and insulating plugl for preventing noise of vehicle engine

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