KR101243985B1 - Diameter reduction apparatus for vehicle shockabsorbing bushing - Google Patents

Diameter reduction apparatus for vehicle shockabsorbing bushing Download PDF

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KR101243985B1
KR101243985B1 KR1020110060363A KR20110060363A KR101243985B1 KR 101243985 B1 KR101243985 B1 KR 101243985B1 KR 1020110060363 A KR1020110060363 A KR 1020110060363A KR 20110060363 A KR20110060363 A KR 20110060363A KR 101243985 B1 KR101243985 B1 KR 101243985B1
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South Korea
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tubular body
pieces
molding
molded
forming
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KR1020110060363A
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Korean (ko)
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KR20120140552A (en
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제갈희재
정선희
전규태
성금길
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정선희
제갈희재
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining
    • B60G2206/8209—Joining by deformation
    • B60G2206/82092—Joining by deformation by press-fitting
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers

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

Abstract

본 발명은 차량 완충부쉬의 축관장치에 관한 것으로, 더욱 상세하게는 내부에 고무를 충진하여 부쉬부재를 고정한 관체를 축관시켜, 관체에 수용된 부쉬부재가 압축된 고무에 의해 탄지하여 고정된 형태의 차량용 완충부쉬를 성형하는 축관장치에 관한 것이다.The present invention relates to an axle tube device of a vehicle buffer bush, and more particularly, to a tube body in which a bush member is fixed by filling a rubber therein, and the bush member accommodated in the tube is supported by a compressed rubber. A shaft tube device for molding a buffer bush.

Description

차량 완충부쉬의 축관장치{Diameter reduction apparatus for vehicle shockabsorbing bushing}Tube reduction device for vehicle shockabsorbing bushing

본 발명은 차량 완충부쉬의 축관장치에 관한 것으로, 더욱 상세하게는 내부에 고무를 충진하여 부쉬부재를 고정한 관체를 축관시켜, 관체에 수용된 부쉬부재가 압축된 고무에 의해 탄지하여 고정된 형태의 차량용 완충부쉬를 성형하는 축관장치에 관한 것이다.The present invention relates to an axle tube device of a vehicle buffer bush, and more particularly, to a tube body in which a bush member is fixed by filling a rubber therein, and the bush member accommodated in the tube is supported by a compressed rubber. A shaft tube device for molding a buffer bush.

일반적으로 차체와, 고정물 사이에는 차량 완충부쉬가 설치되어, 차량 완충부쉬의 완충작용에 의해 차체에서 가해지는 충격이 로드나 축 사이에 전달되는 것을 방지하고 있다.In general, a vehicle cushioning bush is provided between the vehicle body and the fixture to prevent the shock from the vehicle body from being transmitted between the rod and the shaft by the buffering action of the vehicle cushioning bush.

상기 차량 완충부쉬는, 부쉬부재가 관체 내부에 고무를 충진하여 고정된 형태로 구성되는데, 당 분야에서는 관체에 고무를 충진하여 부쉬부재를 고정시킨 다음, 관체를 축관시켜 압축된 고무에 의해 부쉬부재가 탄지되어 고정된 형태의 차량 완충부쉬를 성형한다.The vehicle cushion bush is configured by the bush member is fixed by filling the rubber inside the tubular body, in this field is filled with rubber in the tubular to secure the bushing member, and then by condensing the tubular body to the bush member by the compressed rubber Is molded into a vehicle cushioning bush of a fixed form.

이와 같이 고무가 축관된 관체에 의해 압축되면, 고무는 보다 높은 밀도를 형성하여 축관부재를 보다 정형화되게 고정할 수 있고, 또 고무 및 이를 포함하는 차량 완충부쉬의 내구성이 향상되는 이점을 갖는다.Thus, when the rubber is compressed by the conduit tube, the rubber can form a higher density to fix the shaft tube member more standardized, and also has the advantage that the durability of the rubber and the vehicle buffer bush including the same.

일반적으로 고무의 압축량이 증가할수록 축관부재의 탄지 고정상태가 보다 안정될 뿐 아니라, 고무 자체의 내구성도 높아진다.In general, as the amount of compression of the rubber increases, not only the clamping state of the shaft tube member is more stable, but also the durability of the rubber itself increases.

그런데, 종래에는 내부에 고무를 충진하여 부쉬부재을 관통시킨 관체를, 다이스에 강제 통과시키는 압출을 통해 관체의 축관을 도모하고 있다.By the way, conventionally, the shaft tube of a tube body is planned through the extrusion which forcibly passes the tube body which filled the rubber inside and penetrated the bushing member to die.

그런데, 상기 압출을 통해 축관된 차량 완충부쉬는 관체의 직경만이 축관되고, 상단부와 하단부를 포함하는 양단부의 축관은 이룩되지 못한 관계로, 개방된 관체의 양단부를 통해 압축된 고무가 돌출되는 현상이 발생되었고, 이에 따라 관체 내에 충진되어 축관부재를 탄지하여 고정하는 고무의 압축상태가 저하되는 현상이 초래되었다.However, the vehicle buffer bush condensed through the extrusion is condensed only the diameter of the tube, the shaft of the both ends including the upper end and the lower end is not achieved, the compressed rubber protrudes through both ends of the open tube. This caused a phenomenon in which the compressed state of the rubber filling the inside of the tube and holding and fixing the shaft tube member was lowered.

상기한 문제점을 해소하기 위해 안출된 목적은, 관체의 내부에 고무를 충진하여 부쉬부재를 탄지된 상태로 고정함에 있어, 관체를 프레스 성형을 통해 축관시켜 부쉬부재를 탄지하여 고정하는 고무의 안정된 압축상태가 형성되도록 한 차량 완충부쉬의 축관장치를 제공함에 있다.In order to solve the above problems, the object of the present invention is to fill the rubber inside the tube to fix the bush member in a state in which the bush is held in a stable state. It is an object of the present invention to provide an axle arrangement of a vehicle cushion bush.

상기한 목적은, 본 발명에서 제공되는 하기 구성에 의해 달성된다.The above object is achieved by the following constitutions provided in the present invention.

본 발명에 따른 차량용 완충부쉬의 축관장치는, The shaft tube device of the vehicle cushion bush according to the present invention,

분할된 성형편들이 방사구조로 배치되어 각 성형편들이 내측으로 이동하면 성형공간이 좁아지고 외측으로 이동하면 성형공간의 확장되는 형태의 성형부를 갖는 하형과, 상기 하형의 상부에 승강구조로 배치되며 하부 개방형의 성형캡을 갖는 상형을 포함하여 구성되고,
상기 복수의 성형편들로 이루어진 성형부의 외벽과 성형캡의 내벽은 상부에서 하부로 갈수록 점차 폭이 넓어지는 빗면형상으로 구성되어, 각 성형편들은 하강하는 성형캡의 내벽과 빗면구조로 간섭되어 내측으로 이송하면서 성형공간 내에 수용된 관체의 외경을 방사구조로 가압하여 축관하도록 구성되며,
상기 성형부를 형성하는 각 성형편들의 상단부와 하단부에는 내향 절곡된 커링부가 각각 형성되어, 상기 성형편들의 가압에 의해 외경이 축관되는 관체의 상단부와 하단부는 커링부와의 간섭에 의해 내향 절곡되도록 구성되고,
상기 성형공간의 바닥면에는 상기 성형편들에 의해 외경이 가압된 관체를 상향 지지하여 상승시키는 승강편이 배치되고, 상기 하형에는 상기 승강편을 상향 지지하는 지렛레버가 배치되어, 하강하는 상형의 성형캡이 상기 지렛레버의 힘점을 가압하도록 구성되어, 지렛레버가 하강하는 상형의 성형캡과의 간섭에 의해 상방향으로 선회하여 승강편을 상승시키고, 상기 상형의 하강력을 통해 상승한 승강편은 관체를 상승시켜, 상승되는 관체의 상단부가 커링부와 간섭되면서 내향 절곡되도록 구성된 것을 특징으로 한다.The divided molding pieces are arranged in a radial structure, and when each of the molding pieces moves inward, the molding space is narrowed, and when the molding pieces are moved outward, the lower mold having a molded part having an expanded form of the molding space is arranged in a lifting structure on the upper part of the lower mold. It is configured to include an upper mold having a molding cap of the lower open type,
The outer wall of the molded part consisting of the plurality of molded pieces and the inner wall of the forming cap is composed of a comb surface shape that gradually widens from the upper portion to the lower portion, and each of the molded pieces interferes with the inner wall of the descending forming cap and the comb surface structure to the inner side. It is configured to pressurize the outer diameter of the tubular body accommodated in the molding space radially while conveying to the tube,
Curing parts bent inwardly are formed at the upper end and lower end of each of the molded pieces forming the molded part, and the upper end and the lower end of the tubular body whose outer diameter is constrained by the pressing of the molded parts are bent inward by interference with the curling part. Become,
An elevating piece is disposed on the bottom surface of the forming space to upwardly support and elevate the tubular body whose outer diameter is pressurized by the forming pieces, and a lower lever is disposed on the lower mold to support the elevating piece. The cap is configured to press the force point of the lever lever, the lever lever is turned upward by the interference with the upper-shaped forming cap is lowered to raise the lifting piece, the lifting piece raised through the lowering force of the upper box is a tubular body By raising the, it is characterized in that the upper end portion of the tubular body is bent inward while interfering with the curling portion.

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본 발명에서와 같이 분할된 성형편들이 관체의 외벽을 방사구조로 가압하여 축관하도록 구성하면, 종래 압출성형을 통한 축관형태 보다 생산성이 향상되고, 또 성형편에 형성된 커링부를 통해 관체의 상단부와 하단부의 내향 절곡이 가능하다.When the molded pieces divided as in the present invention is configured to pressurize the outer wall of the tubular body with a radial structure, the productivity is improved than that of the conventional tubular shaft through extrusion molding, and the upper and lower end portions of the tubular body through a curing part formed on the molded piece. Inward bending is possible.

따라서, 상기 관체의 상단부와 하단부가 내향 절곡되면, 이에 충입된 고무는 외경뿐 아니라 내향 절곡된 관체의 상단부와 하단부에 의해 양단부가 가압되어 보다 높은 압축상태를 형성하므로, 고무 자체의 내구성이 향상되고, 또 압축된 고무를 통한 부쉬부재의 보다 안정된 고정상태가 형성될 수 있다.Therefore, when the upper end and the lower end of the tubular body are bent inwardly, the rubber filled therein is pressurized at both ends by the upper end and the lower end of the inwardly bent tubular body to form a higher compression state, thereby improving durability of the rubber itself. In addition, a more stable fixed state of the bushing member through the compressed rubber can be formed.

그리하여, 본 발명에 따른 축관장치를 통해 성형된 차량 완충부쉬는 고무의 압축상태가 불량하여 고무 자체의 수명이 단축되고, 또 차량에서 발생되는 반복적인 충격 및 진동에 의해 관체 내에 고정된 고무 및 부쉬부재가 관체에서 이탈하는 현상이 예방될 수 있다.Thus, the vehicle cushion bush formed through the shaft device according to the present invention has a poor compression state of the rubber, thereby shortening the life of the rubber itself, and fixing the rubber and bush fixed in the tube by repetitive shock and vibration generated in the vehicle. The phenomenon that the member leaves the tube can be prevented.

이와 더불어, 본 발명에서는 승강편을 통해 성형편에 의해 외경이 가압된 관체를 상승시켜 관체의 상단부가 보다 많이 내향 절곡되도록 하는 관계로, 관체 내에 충진된 고무는 보다 많이 압축되어서, 부쉬부재의 보다 안정적인 고정을 도모한다.In addition, in the present invention, the upper end of the tube is bent inward more by raising the tube pressurized by the molded piece through the lifting piece so that the rubber filled in the tube is compressed more, so that the bush member Promote stable fixing.

도 1은 본 발명에서 바람직한 실시예로 제안하고 있는 차량용 완충부쉬의 축관장치의 전체 구성을 보여주는 것이고,
도 2는 본 발명에서 바람직한 실시예로 제안하고 있는 차량 완충부쉬의 축관장치를 통한 차량 완충부쉬의 축관과정을 순차적으로 보여주는 작용 상태도이고,
도 3은 본 발명에 따른 축관장치를 통해 성형된 차량용 완충부쉬의 외형 구성을 보여주는 것이다.1 is a view showing the overall configuration of the conduit device of the buffer buffer for a vehicle proposed as a preferred embodiment in the present invention,
FIG. 2 is an operational state diagram sequentially showing a condensation process of the vehicle buffer bush through the condenser device of the vehicle buffer bush proposed as a preferred embodiment of the present invention.
Figure 3 shows the external configuration of the cushioning bush for the vehicle molded through the shaft device according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명에서 바람직한 실시예로 제안하고 있는 차량 완충부쉬의 축관장치를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the shaft device of the vehicle buffer bush proposed in the preferred embodiment of the present invention.

도 1은 본 발명에서 바람직한 실시예로 제안하고 있는 차량용 완충부쉬의 축관장치의 전체 구성을 보여주는 것이고, 도 2는 본 발명에서 바람직한 실시예로 제안하고 있는 차량 완충부쉬의 축관장치를 통한 차량 완충부쉬의 축관과정을 순차적으로 보여주는 작용 상태도이고, 도 3은 본 발명에 따른 축관장치를 통해 성형된 차량용 완충부쉬의 외형 구성을 보여주는 것이다.Figure 1 shows the overall configuration of the conduit device of the vehicle cushion bush proposed as a preferred embodiment in the present invention, Figure 2 is a vehicle buffer bush through the condenser device of the vehicle buffer bush proposed as a preferred embodiment in the present invention. Figure 3 is an operational state diagram showing the condensation process of the sequentially, Figure 3 shows the outer configuration of the shock absorbing bush for the vehicle molded through the condenser according to the invention.

본 발명에서 바람직한 실시예로 제안하고 있는 차량 완충부쉬의 축관장치(1)는, 도 1 내지 도 3에서 보는 바와 같이 내부에 고무(120)를 충진하여 부쉬부재(130)를 고정한 관체(10)를 축관시켜, 관체(10) 내에 충진되어 압축된 고무(120)에 의해 부쉬부재(130)가 안정되게 탄지되어 고정된 형태의 차량 완충부쉬(100)를 성형하는 것이다.As shown in FIGS. 1 to 3, the shaft tube device 1 of the vehicle buffer bush, which is proposed as a preferred embodiment of the present invention, is filled with a rubber 120 to fix the bush member 130. By condensing the, the bush member 130 is stably supported by the rubber 120 filled and compressed in the tubular body 10 to form a vehicle buffer bush 100 of a fixed form.

상기 차량 완충부쉬의 축관장치(1)는, 도 1 내지 도 2에서 보는 바와 같이 분할된 복수의 성형편(11)들이 방사구조로 배치되어, 각 성형편(11)들이 내측으로 이동하면 성형공간(12)이 좁아지고 외측으로 이동하면 성형공간(12)의 확장되는 성형부(10')를 갖는 하형(10)과; 상기 하형(10)의 상부에 승강구조로 배치되며 하부 개방형의 성형캡(21)을 갖는 상형(20)을 포함하여 구성된다.As shown in FIGS. 1 and 2, the shaft tube device 1 of the vehicle buffer bush has a plurality of divided pieces 11 formed in a radial structure, and when each of the pieces 11 moves inward, a molding space is formed. A lower mold 10 having a molding portion 10 'that is expanded when the 12 is narrowed and moved outwardly; It is configured to include an upper mold 20 having a lifting structure disposed on the upper portion of the lower mold 10 and having a molding cap 21 of the lower open type.

도면을 보면 상기 성형캡(21)의 중앙에는 압축된 고무(120)에 의해 관체(110) 내에 고정된 부쉬부재(130)에 진입하여, 부쉬부재(130)를 정중심에 고정하는 중심봉(22)이 하향 돌출되게 형성된다.Referring to the drawing, the center of the forming cap 21 enters the bush member 130 fixed in the tubular body 110 by the compressed rubber 120, and the center rod 22 fixing the bush member 130 to the center of gravity. ) Is formed to protrude downward.

그리고, 본 실시예에서는 상기 중심봉(22)을 전열 히터로 구성하여 전열히터로 구성된 중심봉(23)이 부쉬부재(130), 및 이를 둘러싼 고무(120)를 가열하여 연화시킴으로써, 관체(110)의 축관과정에 고무(120)가 불균일하게 압축되더라도 부쉬부재(130)가 정 중심에서 이탈하는 현상이 예방되도록 하고 있다.In addition, in the present embodiment, the center rod 22 is configured as a heat transfer heater so that the center rod 23 composed of a heat transfer heater heats and softens the bush member 130, and the rubber 120 surrounding the tubular body 110. Even though the rubber 120 is unevenly compressed in the tube process, the bush member 130 is prevented from being separated from the center.

또한, 상기 성형편(11)들로 이루어진 성형부(10')의 외벽과, 성형캡(21)의 내벽은 상부에서 하부로 갈수록 점차 폭이 넓어지는 빗면형상으로 구성되어, 하강하는 상형(20)의 성형캡(21)은 하형(10)에 형성된 각 성형편(11)들을 빗면구조로 간섭하여 성형편(11)들을 내측으로 이동시킨다.In addition, the outer wall of the forming portion (10 ') made of the molded pieces 11, and the inner wall of the forming cap 21 is composed of a comb surface shape gradually widening from the upper to the lower, the upper die 20 The molding cap 21 of the c) moves the molded pieces 11 inward by interfering each of the molded pieces 11 formed on the lower mold 10 with a comb surface structure.

따라서, 상기 방사구조로 배치된 성형편(11)들은 성형캡(21)과의 빗면간섭에 의해 개별적으로 내측으로 이동하면서 관체(110)를 가압하여 축관하고, 이때 관체(110)에는 균일한 가압력이 제공되므로 관체(110)에 충진된 고무(120)는 균일한 가압력에 의해 안정된 압축상태를 형성한다.Therefore, the molded pieces 11 arranged in the radial structure is pressed by the tubular body 110 while moving inwards individually by the oblique plane interference with the forming cap 21, wherein the tubular 110 is uniformly applied to the pressing force Since it is provided, the rubber 120 filled in the tubular body 110 forms a stable compressed state by the uniform pressing force.

또한, 본 실시예에서는 각 성형편(11)들의 상단부와 하단부에 내향 절곡된 커링부(11a, 11b)를 각각 형성하여, 상기 성형편(11)들의 가압에 의해 외경이 축관되는 관체(110)의 상단부(111)와 하단부(112)를 포함하는 양단부가 커링부(11a, 11b)와의 간섭에 의해 내향 절곡되도록 한다.In addition, in the present embodiment, by forming inwardly curved curling portions 11a and 11b at the upper end and the lower end of each of the molded pieces 11, the tubular body 110 having an outer diameter piped by the pressing of the molded pieces 11. Both ends including the upper end 111 and the lower end 112 of the bent inward by the interference with the curing portion (11a, 11b).

따라서, 고무(120)를 충진하여 부쉬부재(130)를 관통시킨 관체(110)를 성형부(10')의 성형공간(12)에 수용시킨 다음, 성형캡(21)이 형성된 상형(20)을 하강시키면, 성형부(10')의 각 성형편(11)들은 하강하는 성형캡(21)과 빗면구조로 간섭되면서 내측으로 이동한다.Accordingly, the upper body 20 having the molding cap 21 formed therein is accommodated in the molding space 12 of the molding part 10 'by filling the rubber 120 with the tube 110 penetrating the bush member 130. When lowering, each of the molded pieces 11 of the forming portion (10 ') moves inward while interfering with the descending forming cap 21 and the oblique structure.

그리하여, 상기 성형공간(12)에 수용된 관체(110)는 내측으로 이송하는 성형편(11)들에 의해 외벽이 가압되어 축관됨과 동시에, 축관되는 관체(110)의 상단부(111)와 하단부(112)는 각 성형편(11)에 형성된 커링부(11a, 11b)와의 간섭에 의해 내향 절곡된다.Thus, the tubular body 110 accommodated in the molding space 12 is pressurized by the outer wall by the molded pieces 11 to be transported inward, and at the same time, the upper end 111 and the lower end 112 of the tubular body 110 being tubulated. ) Is bent inward by interference with the curling portions 11a and 11b formed on the respective molded pieces 11.

따라서, 관체(110)에 수용된 고무(120)는 축관 및 내향 절곡되는 상단부(111)와 하단부(112)에 의해 가압하여 압축된 상태를 형성하므로, 부쉬부재(130)는 외경 및 상단부(111)와 하단부(112)가 각각 압축된 고무(120)에 의해 관체(110) 내에 안정되게 탄지하여 고정된 상태를 형성한다.Therefore, since the rubber 120 accommodated in the tubular body 110 forms a compressed state by the upper end 111 and the lower end 112 being bent inwardly and inwardly, the bush member 130 has an outer diameter and an upper end 111. And the lower end portion 112 is stably held in the tubular body 110 by the compressed rubber 120 to form a fixed state.

이와 더불어, 본 실시예에서는 성형공간(12)의 바닥면에 성형편(11)들에 의해 외경이 가압된 관체(110)를 상승시키는 승강편(14)을 배치하여, 승강편(14)에 의해 상승되는 관체(110)의 상단부(111)가 커링부(11a)와 보다 많이 간섭되면서 보다 길게 내향 절곡되도록 한다.In addition, in the present embodiment, the elevating piece 14 which raises the tubular body 110 pressurized by the forming pieces 11 on the bottom surface of the forming space 12 is placed on the elevating piece 14. The upper end 111 of the tubular body 110, which is lifted up, is bent inward for a longer time while more interfering with the curling portion 11a.

그리고, 본 발명에서는 일예로 하형(10)에는 승강편(14)을 상향 지지하는 지렛레버(15)를 배치하고, 이 하강하는 상형(20)의 성형캡(21)은 지렛레버(15)의 힘점을 가압하도록 구성하고 있다.In the present invention, for example, the lower mold 10 is provided with a lever lever 15 for supporting the lifting piece 14 upward, and the forming cap 21 of the lower upper mold 20 is formed of the lever lever 15. It is configured to press the force point.

따라서, 상기 지렛레버(15)는 하강하는 상형의 성형캡과의 간섭에 의해 상방향으로 선회하여 승강편(14)을 상승시키게 된다.Therefore, the lever lever 15 is turned upward by the interference with the lowering mold of the upper die to raise the lifting piece 14.

이때, 승강편(14)은 상형(20)의 하강력을 통해 상승하여 관체(110)를 상승시키게 되므로, 승강편(14)의 상승시키는 실린더 등의 별도의 구동수단의 삭제에 의한 구조의 간소화가 이룩된다.At this time, the elevating piece 14 ascends through the lowering force of the upper die 20 to elevate the tubular body 110, thereby simplifying the structure by eliminating a separate driving means such as a cylinder for raising the elevating piece 14. Is accomplished.

그리고, 승강편(14)의 상승에 의해 관체(110) 상단부(111)의 내향 절곡 길이가 연장되면 관체(110)에 충진된 고무(120)가 보다 많이 압축되므로, 압축된 고무를 통한 부쉬부재(130)의 보다 안정된 고정상태가 형성될 수 있어서, 차량 완충부쉬(100)의 품질 안정성이 확보될 수 있다.In addition, when the inward bending length of the upper end portion 111 of the tubular body 110 is extended by the lifting of the elevating piece 14, the rubber 120 filled in the tubular body 110 is compressed more, and thus the bush member through the compressed rubber. A more stable fixed state of the 130 can be formed, so that the quality stability of the vehicle buffer bush 100 can be secured.

1. 차량 완충부쉬의 축관장치
10. 하형 10'. 성형부
11. 성형편 11a, 11b. 커링부
12. 성형공간 13. 레일
13a. 스프링 14. 승강편
15. 지렛레버
20. 상형 21. 성형캡
21a. 내벽 22. 중심봉
100. 차량 완충부쉬 110. 관체
111. 상단부 112. 하단부
120. 고무 130. 부쉬부재1. Shaft fitting of vehicle buffer bush
10. Bottom 10 '. Molding department
11. Molded Pieces 11a and 11b. Curling Department
12. Molding space 13. Rail
13a. Spring 14. Lift
15. lever lever
20. Pictograph 21. Molding Cap
21a. Interior wall 22. Center rod
100. Vehicle shock absorber 110. Tube
111. Upper part 112. Lower part
120. Rubber 130. Bushing member

Claims (3)

분할된 성형편들이 방사구조로 배치되어 각 성형편들이 내측으로 이동하면 성형공간이 좁아지고 외측으로 이동하면 성형공간의 확장되는 형태의 성형부를 갖는 하형과, 상기 하형의 상부에 승강구조로 배치되며 하부 개방형의 성형캡을 갖는 상형을 포함하여 구성되고,
상기 복수의 성형편들로 이루어진 성형부의 외벽과 성형캡의 내벽은 상부에서 하부로 갈수록 점차 폭이 넓어지는 빗면형상으로 구성되어, 각 성형편들은 하강하는 성형캡의 내벽과 빗면구조로 간섭되어 내측으로 이송하면서 성형공간 내에 수용된 관체의 외경을 방사구조로 가압하여 축관하도록 구성되며,
상기 성형부를 형성하는 각 성형편들의 상단부와 하단부에는 내향 절곡된 커링부가 각각 형성되어, 상기 성형편들의 가압에 의해 외경이 축관되는 관체의 상단부와 하단부는 커링부와의 간섭에 의해 내향 절곡되도록 구성되고,
상기 성형공간의 바닥면에는 상기 성형편들에 의해 외경이 가압된 관체를 상향 지지하여 상승시키는 승강편이 배치되고, 상기 하형에는 상기 승강편을 상향 지지하는 지렛레버가 배치되어, 하강하는 상형의 성형캡이 상기 지렛레버의 힘점을 가압하도록 구성되어, 지렛레버가 하강하는 상형의 성형캡과의 간섭에 의해 상방향으로 선회하여 승강편을 상승시키고, 상기 상형의 하강력을 통해 상승한 승강편은 관체를 상승시켜, 상승되는 관체의 상단부가 커링부와 간섭되면서 내향 절곡되도록 구성된 것을 특징으로 하는 차량용 완충부쉬의 축관장치.The divided molding pieces are arranged in a radial structure, and when each of the molding pieces moves inward, the molding space is narrowed, and when the molding pieces are moved outward, the lower mold having a molded part having an expanded form of the molding space is arranged in a lifting structure on the upper part of the lower mold. It is configured to include an upper mold having a molding cap of the lower open type,
The outer wall of the molded part consisting of the plurality of molded pieces and the inner wall of the forming cap is composed of a comb surface shape that gradually widens from the upper portion to the lower portion, and each of the molded pieces interferes with the inner wall of the descending forming cap and the comb surface structure to the inner side. It is configured to pressurize the outer diameter of the tubular body accommodated in the molding space radially while conveying to the tube,
Curing parts bent inwardly are formed at the upper end and lower end of each of the molded pieces forming the molded part, and the upper end and the lower end of the tubular body whose outer diameter is constrained by the pressing of the molded parts are bent inward by interference with the curling part. Become,
An elevating piece is disposed on the bottom surface of the forming space to upwardly support and elevate the tubular body whose outer diameter is pressurized by the forming pieces, and a lower lever is disposed on the lower mold to support the elevating piece. The cap is configured to press the force point of the lever lever, the lever lever is turned upward by the interference with the upper-shaped forming cap is lowered to raise the lifting piece, the lifting piece raised through the lowering force of the upper box is a tubular body By raising the upper end of the tubular body is configured to be bent inwards while interfering with the curling portion of the tube buffer device for a vehicle. 삭제delete 삭제delete
KR1020110060363A 2011-06-21 2011-06-21 Diameter reduction apparatus for vehicle shockabsorbing bushing KR101243985B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200436694Y1 (en) * 2007-04-05 2007-09-20 신철수 Swaging device
KR20090098978A (en) * 2007-01-10 2009-09-18 더풀맨캄파니 Increased axial rate and improved durability of an elastomeric bushing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090098978A (en) * 2007-01-10 2009-09-18 더풀맨캄파니 Increased axial rate and improved durability of an elastomeric bushing
KR200436694Y1 (en) * 2007-04-05 2007-09-20 신철수 Swaging device

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