WO2017086539A1 - Seat track for vehicle - Google Patents
Seat track for vehicle Download PDFInfo
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- WO2017086539A1 WO2017086539A1 PCT/KR2016/000563 KR2016000563W WO2017086539A1 WO 2017086539 A1 WO2017086539 A1 WO 2017086539A1 KR 2016000563 W KR2016000563 W KR 2016000563W WO 2017086539 A1 WO2017086539 A1 WO 2017086539A1
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- WIPO (PCT)
- Prior art keywords
- rail
- inclined surface
- surface portion
- roller
- diagonal direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
Definitions
- the present invention relates to a seat track for a vehicle that enables the front and rear slide adjustment of the seat with respect to the vehicle body.
- FIG. 1 is a cross-sectional view of a conventional vehicle seat track 100.
- the conventional vehicle seat track 100 is constrained by the main roller 131 and the auxiliary roller 132 by being constrained by the left and right upper end portions 123 of the upper rail 120 with respect to the lower rail 110. It is provided so that the slide back and forth in the state.
- a seat (not shown) is mounted and fixed on the upper horizontal portion 121 of the upper rail 120. Accordingly, when a seated person is seated, the load W is transmitted through the upper horizontal portion 121.
- the upper rail 120 is supported by the main roller 131 in a state where it is somewhat collapsed.
- the bottom surface portion, the outer wall portion vertically raised from the left and right both ends of the bottom surface portion, the horizontal bending portion extending inwards from the upper end of the outer wall portion and vertically from the inner end of the horizontal bending portion A lower rail having a lower arm portion which is lowered; The upper horizontal portion spaced apart from the upper and lower ends of the upper and lower horizontal portions and vertically lowered from the left and right ends of the upper horizontal portion, the inner wall portion facing the inner side of the downward arm portion and the lower wall portion rising from the lower end of the inner wall portion; An upper rail having an upper end portion extending into a space between the downward arm portions;
- In the vehicle seat track including a roller for slidably supporting the upper rail with respect to the lower rail through the upper end, the upper end of the upper rail portion, the outer wall portion, horizontal bending portion and the lower arm portion of the lower rail
- a first inclined surface portion extending in an oblique direction to an inner space bounded by the first inclined surface portion and extending
- the third inclined surface portion of the upper end may be formed in a planar manner to make point contact with the auxiliary roller.
- the first inclined surface portion of the upper end may be formed of a curved surface having a radius of curvature larger than that of the main roller to accommodate and support the main roller.
- the main roller may be to be in point contact with the bottom surface portion and the outer wall portion of the lower rail, respectively.
- the vehicle seat track is a locking device having a locking arm that is accommodated and installed between the left and right inner wall portions of the upper rail and operated to move up and down to achieve locking and unlocking of the upper rail to the lower rail.
- the upper end portion of the upper rail further includes a bending switching portion formed between the second inclined surface portion and the third inclined surface portion to be disposed close to the lower arm portion of the lower rail, so that the locking arm when the locking device is locked.
- the lower rail side may be fastened to the lower arm portion, and at the same time, the upper rail side inner wall portion and the bent switch may be coupled together.
- the upper end of the upper rail is supported in the inward oblique direction by the outer main roller in the lower portion, and is supported in the outer oblique direction by the inner auxiliary roller in the upper portion
- the main roller and the auxiliary roller can be more stably supported on the lower rail. That is, the state where the upper rail side upper end portion which is rotationally deformed inwardly by the main roller is in contact with and supported by the auxiliary roller inside thereof can be constantly maintained.
- FIG. 1 is a cross-sectional view of a vehicle seat track according to the prior art
- FIG. 2 is a perspective view of a vehicle seat track according to an embodiment of the present invention.
- FIG. 3 is an exploded perspective view of the vehicle seat track of FIG. 2;
- FIG. 4 is a cross-sectional view of the vehicle seat track of FIG. 2;
- FIG. 5 is a cross-sectional view showing a modified state of the vehicle seat track of FIG. 4;
- FIG. 6 is a cross-sectional view illustrating a locking state of the locking device in the vehicle seat track of FIG. 4.
- the vehicle seat track 200 includes the lower rail 210, the upper rail 220, and the upper rail 220 with respect to the lower rail 210. It includes a main roller 231 and the auxiliary roller 232 to support the slide.
- the vehicle seat track 200 includes a locking device 240 installed inside the upper rail 220, and includes a retainer 250 for restraining the main roller 231 and the auxiliary roller 232. .
- FIG. 4 is a cross-sectional view of the vehicle seat track 200 of FIG. 2, wherein the lower rail 210 includes a bottom surface portion 211, an outer wall portion 212 that rises vertically from both left and right ends of the bottom surface portion 211, and an outer wall thereof.
- a horizontal bend 213 extending inwardly from the upper end of the portion 212 and a downward arm portion 214 vertically lowered from the inner end of the horizontal bend 213 are formed.
- the upper rail 220 is vertically lowered from the left and right ends of the upper horizontal portion 221 and the upper horizontal portion 221 spaced apart from the upper portion of the bottom surface portion 211 of the lower rail 210 and the lower rail
- An inner wall portion 222 facing the lower arm portion 214 of 210 from the inner side and a space between the outer wall portion 212 and the lower arm portion 214 rising from the lower end of the inner wall portion 222.
- An upward end portion 223 extending to S is formed.
- the upper end portion 223, as shown in the diagonal direction to the inner space (S) bounded by the outer wall portion 212, the horizontal bending portion 213 and the lower arm portion 214 of the lower rail 210 The first inclined surface portion 223a which extends from the lower end of the inner wall portion 222 in the outward oblique direction and the second inclined surface extending in the inward oblique direction from the end of the first inclined surface portion 223a. It is formed of the third inclined surface portion 223c extending from the end of the portion 223b and the second inclined surface portion 223b in the outward oblique direction.
- the lower main roller 231 accommodated in the internal space S is disposed outside the upper end 223, and the upper auxiliary roller 232 is disposed inside the upper end 223. Each contact is supported.
- the main roller 231 is in contact with the bottom surface 211 and the outer wall portion 212 of the lower rail 210 to the lower side is supported in the inner diagonal direction, the upper end of the upper end portion 223 1 It contacts and supports in the inclined diagonal direction with respect to the inclined surface part 223a.
- the radius of curvature of the corner portion 211-1 where the bottom surface portion 211 and the outer wall portion 212 are connected to each other is formed to be smaller than the radius of curvature of the main roller 231 so that the main roller 231 has a bottom surface portion ( The frictional resistance during rolling motion can be reduced by making point contact between the 211 and the outer wall 212.
- the first inclined surface portion 223a of the upper end portion 223 supported by the main roller 231 in the inward oblique direction is, as shown, a curved surface having a larger radius of curvature than the main roller 231.
- the auxiliary roller 232 of the upper side is supported in contact with the inner diagonal direction by the third inclined surface portion 223c of the upper end portion 223 in the lower portion and the upper horizontal portion 213 of the lower rail 210 in the upper portion.
- the lower arm portion 214 are respectively contacted and supported in the inner diagonal direction.
- the third inclined surface part 223c contacting and supporting the second roller 232 is formed in a planar manner as shown in order to make point contact with the auxiliary roller 232.
- the length of the third inclined surface portion 223c supporting the auxiliary rollers 232 may be set to be shorter from the inside, so that the outer rail portion 210 on the lower side of the lower rail 210 and the horizontal curved portion ( 213 may greatly reduce the possibility of interference.
- the end of the upper end portion 123 is disposed close to the horizontal bend portion 113 on the lower rail 110 side.
- FIG. 6 is a view illustrating a locking state of the vehicle seat track 200, and the locking device 240 installed inside the upper rail 220 has an upper locking position according to the vertical operation of the protrusion pin 241. 6) and the lowered unlocking position (not shown).
- the locking arm 242 extending left and right at the lower end of the locking device 240 penetrates the lower arm portion 214 of the lower rail 210 and also has an upper end 220 side upward end portion ( 223 is fastened through.
- three-point support for the locking arm 242 is achieved by the inner wall portion 222, the lower arm portion 214, and the upper end portion 223 relative to the slide direction.
- the locking state may include the second inclined surface portion 223b extending in the upper diagonal direction and the third inclined surface portion 223c extending in the outer diagonal direction as described above. It is possible because the bending switching portion 223d forming the inner end is disposed between the lower arm portion 214 on the lower rail 210 side.
- the upper end portion 123 of the upper rail 120 is curved in a direction away from the lower arm portion 114 of the lower rail 110, and thus is locked.
- the locking arm (see 242 in FIG. 6) can lock only the inner wall portion 122 of the upper rail 120 side and the lower arm portion 114 of the lower rail 110 side, resulting in only two-point support. It is only.
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention relates to a seat track for a vehicle which is capable of adjusting a slide of a seat back and forth with respect to a vehicle body, wherein an upward end of an upper rail is extended in a diagonal direction into an internal space which is bounded by an outer sidewall, a horizontal bent part, and a downward arm part of a lower rail, and is formed as a first inclined surface part extended in an outer diagonal direction from a lower end of an inner sidewall, a second inclined surface part extended in an inner diagonal direction from an end of the first inclined surface part, and a third inclined surface part extended in an outer diagonal direction from the second inclined surface part, wherein a main roller is disposed outside the upper end of the upward rail, comes into contact with and is supported by a bottom surface part and the outer sidewall of the lower rail in a diagonal direction in a lower portion thereof, and comes into contact with and supports the first inclined surface part in an inward diagonal direction in an upper portion thereof, and wherein an auxiliary roller is disposed inside the upward end of the upper rail, comes into contact with and is supported by the third inclined surface part in an inward diagonal direction in a lower portion thereof, and comes into contact with and supports an upper horizontal part and the downward arm part of the lower rail in an inward diagonal direction in an upper portion thereof. As such, the upper rail can be more stably supported by the lower rail through the main roller and the auxiliary roller.
Description
본 발명은 차체에 대하여 좌석을 전후 슬라이드 조절이 가능하게 해주는 차량용 시트트랙에 관한 것이다.The present invention relates to a seat track for a vehicle that enables the front and rear slide adjustment of the seat with respect to the vehicle body.
도 1은 종래의 차량용 시트트랙(100)의 단면도이다. 도시된 바와 같이, 종래의 차량용 시트트랙(100)은 로어레일(110)에 대해 어퍼레일(120)의 좌우측 상향단부(123)가 구속되어 메인롤러(131)와 보조롤러(132)에 의해 지지된 상태에서 전후 슬라이드 가능하게 구비된다.1 is a cross-sectional view of a conventional vehicle seat track 100. As shown in the drawing, the conventional vehicle seat track 100 is constrained by the main roller 131 and the auxiliary roller 132 by being constrained by the left and right upper end portions 123 of the upper rail 120 with respect to the lower rail 110. It is provided so that the slide back and forth in the state.
어퍼레일(120)의 상단수평부(121) 상으로는 좌석(도면 미도시)이 탑재되어 고정되는 바, 이에 따라 착석자가 착석할 경우 상기 상단수평부(121)를 통해 전달되는 하중(W)으로 인해 어퍼레일(120)이 다소 주저앉게 된 상태로 메인롤러(131)에 의해 지지된다.A seat (not shown) is mounted and fixed on the upper horizontal portion 121 of the upper rail 120. Accordingly, when a seated person is seated, the load W is transmitted through the upper horizontal portion 121. The upper rail 120 is supported by the main roller 131 in a state where it is somewhat collapsed.
이 경우, 메인롤러(131)는 상향단부(123)에 대해 내측 사선방향으로 지지력(F)을 발휘하게 되므로, 결과적으로 상향단부(123)가 내측으로 회전(R)하는 변형이 이루어지게 된다.In this case, since the main roller 131 exerts the bearing force F in the inward oblique direction with respect to the upstream end 123, the upstream end 123 rotates inwardly (R).
상향단부(123)가 내측으로 회전 변형하게 되면 로어레일(110)측 외측벽부(112) 및 수평굴곡부(113)와의 사이에 개재된 보조롤러(132)의 상향단부(123)에 대한 접촉 지지관계가 안정적으로 이루어지지 않아 지지력의 저하는 물론, 소음 및 마찰의 발생, 레일의 변형 등의 문제를 유발하였다.When the upper end 123 is rotated inward, the contact support relationship with respect to the upper end 123 of the auxiliary roller 132 interposed between the outer rail 112 and the horizontal bend 113 on the lower rail 110 side. Was not made stable, which caused problems such as lowering of bearing capacity, noise and friction, and deformation of rails.
따라서, 본 발명의 목적은 메인롤러와 보조롤러를 통해 어퍼레일이 로어레일에 보다 안정적으로 지지될 수 있도록 한 차량용 시트트랙을 제공하는 데 있다.Accordingly, it is an object of the present invention to provide a vehicle seat track that allows the upper rail to be more stably supported on the lower rail through the main roller and the auxiliary roller.
상기 목적을 달성하기 위해 본 발명은, 바닥면부와, 상기 바닥면부의 좌우 양단으로부터 수직으로 상승되는 외측벽부와, 상기 외측벽부의 상단으로부터 내측으로 연장되는 수평굴곡부 및 상기 수평굴곡부의 내측단으로부터 수직으로 하강되는 하향아암부가 형성되는 로어레일과; 상기 바닥면부의 상부에 이격하여 배치되는 상단수평부와, 상기 상단수평부의 좌우 양단으로부터 수직으로 하강되어 상기 하향아암부의 내측에서 대면하는 내측벽부 및 상기 내측벽부의 하단으로부터 상승하여 상기 외측벽부와 상기 하향아암부 사이의 공간으로 연장되는 상향단부가 형성되는 어퍼레일과; 상기 상향단부를 통해 상기 로어레일에 대해 상기 어퍼레일을 슬라이드 가능하게 지지하는 롤러를 포함하는 차량용 시트트랙에 있어서, 상기 어퍼레일의 상향단부는 상기 로어레일의 외측벽부, 수평굴곡부 및 하향아암부에 의해 경계지어지는 내부공간으로 사선방향으로 연장되되, 상기 내측벽부의 하단으로부터 외측 사선방향으로 연장되는 제1 경사면부와, 상기 제1 경사면부의 단부로부터 내측 사선방향으로 연장되는 제2 경사면부 및 상기 제2 경사면부의 단부로부터 다시 외측 사선방향으로 연장되는 제3 경사면부로 형성되고, 상기 롤러는, 상기 어퍼레일의 상향단부의 외측으로 배치되어, 하부로는 상기 로어레일의 바닥면부와 외측벽부에 의해 사선방향으로 접촉 지지되고 상부로는 상기 제1 경사면부에 대해 내측 사선방향으로 접촉 지지하는 메인롤러와; 상기 어퍼레일의 상향단부의 내측으로 배치되어, 하부로는 상기 제3 경사면부에 의해 내측 사선방향으로 접촉 지지되고 상부로는 상기 로어레일의 상단수평부와 하향아암부를 내측 사선방향으로 접촉 지지하는 보조롤러를 포함하는 것을 특징으로 하는 차량용 시트트랙을 제공한다.In order to achieve the above object, the present invention, the bottom surface portion, the outer wall portion vertically raised from the left and right both ends of the bottom surface portion, the horizontal bending portion extending inwards from the upper end of the outer wall portion and vertically from the inner end of the horizontal bending portion A lower rail having a lower arm portion which is lowered; The upper horizontal portion spaced apart from the upper and lower ends of the upper and lower horizontal portions and vertically lowered from the left and right ends of the upper horizontal portion, the inner wall portion facing the inner side of the downward arm portion and the lower wall portion rising from the lower end of the inner wall portion; An upper rail having an upper end portion extending into a space between the downward arm portions; In the vehicle seat track including a roller for slidably supporting the upper rail with respect to the lower rail through the upper end, the upper end of the upper rail portion, the outer wall portion, horizontal bending portion and the lower arm portion of the lower rail A first inclined surface portion extending in an oblique direction to an inner space bounded by the first inclined surface portion and extending in an outward oblique direction from a lower end of the inner wall portion, and a second inclined surface portion extending in an inward diagonal direction from an end of the first inclined surface portion; And a third inclined surface portion extending from the end portion of the second inclined surface portion to the outer oblique direction again, wherein the roller is disposed outside the upper end portion of the upper rail, and the lower portion is formed by the bottom surface portion and the outer wall portion of the lower rail. Contact support in an oblique direction and contact support in an inward diagonal direction with respect to the first inclined surface portion Main roller; It is disposed inwardly of the upper end of the upper rail, the lower portion is in contact with the third inclined surface portion in the inward oblique direction and the upper portion of the upper rail and the lower arm portion in contact with the inner diagonal direction in support of the It provides a vehicle seat track comprising a secondary roller.
여기서, 상기 상향단부의 제3 경사면부는 평면적으로 형성됨으로써 상기 보조롤러와 점접촉이 이루어지도록 할 수도 있다.Here, the third inclined surface portion of the upper end may be formed in a planar manner to make point contact with the auxiliary roller.
이때, 상기 상향단부의 제1 경사면부는 상기 메인롤러보다 더 큰 곡률반경을 갖는 굴곡면으로 이루어져 상기 메인롤러를 수용하여 접촉 지지되도록 할 수도 있다.At this time, the first inclined surface portion of the upper end may be formed of a curved surface having a radius of curvature larger than that of the main roller to accommodate and support the main roller.
이 경우, 상기 메인롤러는 상기 로어레일의 바닥면부와 외측벽부에 각각 점접촉 지지되도록 할 수도 있다.In this case, the main roller may be to be in point contact with the bottom surface portion and the outer wall portion of the lower rail, respectively.
한편, 상기 차량용 시트트랙은, 상기 어퍼레일의 좌우 내측벽부 사이에 수용 및 설치되어 상하 승강하도록 조작됨으로써 상기 로어레일에 대한 상기 어퍼레일의 로킹 및 언로킹을 달성하는 로킹아암을 갖는 로킹장치를 더 포함하고, 상기 어퍼레일의 상향단부는 상기 제2 경사면부와 제3 경사면부 사이를 이루는 굴곡전환부가 상기 로어레일의 하향아암부에 근접하도록 배치됨으로써, 상기 로킹장치에 의한 로킹 시 상기 로킹아암이 상기 로어레일측 하향아암부에 체결되되, 이와 동시에 어퍼레일측 내측벽부와 굴곡전환부에 함께 체결되도록 할 수도 있다.On the other hand, the vehicle seat track is a locking device having a locking arm that is accommodated and installed between the left and right inner wall portions of the upper rail and operated to move up and down to achieve locking and unlocking of the upper rail to the lower rail. The upper end portion of the upper rail further includes a bending switching portion formed between the second inclined surface portion and the third inclined surface portion to be disposed close to the lower arm portion of the lower rail, so that the locking arm when the locking device is locked. The lower rail side may be fastened to the lower arm portion, and at the same time, the upper rail side inner wall portion and the bent switch may be coupled together.
이상과 같은 본 발명에 따른 차량용 시트트랙에 의하면, 어퍼레일의 상향단부가 하부로는 외측의 메인롤러에 의해 내측 사선방향으로 지지되고, 상부로는 내측의 보조롤러에 의해 외측 사선방향으로 지지됨으로써 상기 메인롤러 및 보조롤러를 통해 로어레일에 보다 안정적으로 지지될 수 있다. 즉, 메인롤러에 의해 내측으로 회전변형되는 어퍼레일측 상향단부가 그 내측의 보조롤러에 의해 접촉지지되는 상태가 계속적으로 일정하게 유지될 수 있다.According to the vehicle seat track according to the present invention as described above, the upper end of the upper rail is supported in the inward oblique direction by the outer main roller in the lower portion, and is supported in the outer oblique direction by the inner auxiliary roller in the upper portion Through the main roller and the auxiliary roller can be more stably supported on the lower rail. That is, the state where the upper rail side upper end portion which is rotationally deformed inwardly by the main roller is in contact with and supported by the auxiliary roller inside thereof can be constantly maintained.
도 1은 종래기술에 따른 차량용 시트트랙의 단면도,1 is a cross-sectional view of a vehicle seat track according to the prior art,
도 2는 본 발명의 실시예에 따른 차량용 시트트랙의 사시도,2 is a perspective view of a vehicle seat track according to an embodiment of the present invention;
도 3은 도 2의 차량용 시트트랙의 분해사시도,3 is an exploded perspective view of the vehicle seat track of FIG. 2;
도 4는 도 2의 차량용 시트트랙의 단면도,4 is a cross-sectional view of the vehicle seat track of FIG. 2;
도 5는 도 4의 차량용 시트트랙의 변형상태를 도시한 단면도,5 is a cross-sectional view showing a modified state of the vehicle seat track of FIG. 4;
도 6은 도 4의 차량용 시트트랙에서 로킹장치에 의한 로킹상태를 설명하기 위한 단면도이다.6 is a cross-sectional view illustrating a locking state of the locking device in the vehicle seat track of FIG. 4.
본 발명의 실시예에 따른 차량용 시트트랙(200)은, 도 2 및 도 3에 도시된 바와 같이, 로어레일(210)과 어퍼레일(220), 로어레일(210)에 대해 어퍼레일(220)을 슬라이드 가능하게 지지하는 메인롤러(231)와 보조롤러(232)를 포함한다. 또한, 차량용 시트트랙(200)은 어퍼레일(220) 내측에 설치되는 로킹장치(240)를 포함하며, 상기한 메인롤러(231)와 보조롤러(232)를 구속하는 리테이너(250)를 포함한다.As shown in FIGS. 2 and 3, the vehicle seat track 200 according to an exemplary embodiment of the present invention includes the lower rail 210, the upper rail 220, and the upper rail 220 with respect to the lower rail 210. It includes a main roller 231 and the auxiliary roller 232 to support the slide. In addition, the vehicle seat track 200 includes a locking device 240 installed inside the upper rail 220, and includes a retainer 250 for restraining the main roller 231 and the auxiliary roller 232. .
도 4는 도 2의 차량용 시트트랙(200)의 단면도로서, 로어레일(210)은 바닥면부(211), 이 바닥면부(211)의 좌우 양단으로부터 수직으로 상승되는 외측벽부(212), 이 외측벽부(212)의 상단으로부터 내측으로 연장되는 수평굴곡부(213) 및 이 수평굴곡부(213)의 내측단으로부터 수직으로 하강되는 하향아암부(214)가 형성된다.4 is a cross-sectional view of the vehicle seat track 200 of FIG. 2, wherein the lower rail 210 includes a bottom surface portion 211, an outer wall portion 212 that rises vertically from both left and right ends of the bottom surface portion 211, and an outer wall thereof. A horizontal bend 213 extending inwardly from the upper end of the portion 212 and a downward arm portion 214 vertically lowered from the inner end of the horizontal bend 213 are formed.
어퍼레일(220)은 상기 로어레일(210)의 바닥면부(211)의 상부에 이격하여 배치되는 상단수평부(221), 이 상단수평부(221)의 좌우 양단으로부터 수직으로 하강되어 상기 로어레일(210)의 하향아암부(214)를 내측에서 대면하는 내측벽부(222) 및 이 내측벽부(222)의 하단으로부터 상승하여 상기 외측벽부(212)와 하향아암부(214) 사이의 공간(S)으로 연장되는 상향단부(223)가 형성된다.The upper rail 220 is vertically lowered from the left and right ends of the upper horizontal portion 221 and the upper horizontal portion 221 spaced apart from the upper portion of the bottom surface portion 211 of the lower rail 210 and the lower rail An inner wall portion 222 facing the lower arm portion 214 of 210 from the inner side and a space between the outer wall portion 212 and the lower arm portion 214 rising from the lower end of the inner wall portion 222. An upward end portion 223 extending to S is formed.
이때 상향단부(223)는, 도시된 바와 같이 로어레일(210)의 외측벽부(212), 수평굴곡부(213) 및 하향아암부(214)에 의해 경계지어지는 내부 공간(S)으로 사선방향으로 연장되되, 이를 구분하면 내측벽부(222)의 하단으로부터 외측 사선방향으로 연장되는 제1 경사면부(223a)와, 이 제1 경사면부(223a)의 단부로부터 내측 사선방향으로 연장되는 제2 경사면부(223b) 및 이 제2 경사면부(223b)의 단부로부터 다시 외측 사선방향으로 연장되는 제3 경사면부(223c)로 형성된다.At this time, the upper end portion 223, as shown in the diagonal direction to the inner space (S) bounded by the outer wall portion 212, the horizontal bending portion 213 and the lower arm portion 214 of the lower rail 210 The first inclined surface portion 223a which extends from the lower end of the inner wall portion 222 in the outward oblique direction and the second inclined surface extending in the inward oblique direction from the end of the first inclined surface portion 223a. It is formed of the third inclined surface portion 223c extending from the end of the portion 223b and the second inclined surface portion 223b in the outward oblique direction.
이러한 구성에서, 상기 내부 공간(S) 내에 수용되는 하측의 메인롤러(231)는 상기 상향단부(223)의 외측으로 배치되고, 상측의 보조롤러(232)는 상향단부(223)의 내측에 배치되어 각기 접촉 지지된다.In this configuration, the lower main roller 231 accommodated in the internal space S is disposed outside the upper end 223, and the upper auxiliary roller 232 is disposed inside the upper end 223. Each contact is supported.
구체적으로, 메인롤러(231)는 하부로는 로어레일(210)의 바닥면부(211)와 외측벽부(212)에 각기 접촉되어 내측 사선방향으로 지지되고, 상부로는 상향단부(223)의 제1 경사면부(223a)에 대해 내측 사선방향으로 접촉 지지한다.Specifically, the main roller 231 is in contact with the bottom surface 211 and the outer wall portion 212 of the lower rail 210 to the lower side is supported in the inner diagonal direction, the upper end of the upper end portion 223 1 It contacts and supports in the inclined diagonal direction with respect to the inclined surface part 223a.
이때, 바닥면부(211)와 외측벽부(212)가 서로 연결되는 모서리 부분(211-1)의 곡률반경이 메인롤러(231)의 곡률반경보다 더 작게 형성되어 메인롤러(231)가 바닥면부(211)와 외측벽부(212)에 각각 점 접촉이 이루어지도록 함으로써 구름운동 시 마찰저항을 줄일 수 있다.At this time, the radius of curvature of the corner portion 211-1 where the bottom surface portion 211 and the outer wall portion 212 are connected to each other is formed to be smaller than the radius of curvature of the main roller 231 so that the main roller 231 has a bottom surface portion ( The frictional resistance during rolling motion can be reduced by making point contact between the 211 and the outer wall 212.
이에 더하여, 메인롤러(231)에 의해 내측 사선방향에서 지지되는 상향단부(223)의 제1 경사면부(223a)는, 도시된 바와 같이, 메인롤러(231)보다 더 큰 곡률반경을 갖는 굴곡면으로 이루어져 메인롤러(231)를 수용함으로써 메인롤러(231)의 이탈을 방지하는 범위 내에서 접촉부위를 최소화하여 마찰저항을 줄이는데 기여함이 바람직하다.In addition, the first inclined surface portion 223a of the upper end portion 223 supported by the main roller 231 in the inward oblique direction is, as shown, a curved surface having a larger radius of curvature than the main roller 231. By accommodating the main roller 231 it is preferable to contribute to reducing the frictional resistance by minimizing the contact portion within the range to prevent the separation of the main roller 231.
한편, 상측의 보조롤러(232)는 하부로는 상향단부(223)의 제3 경사면부(223c)에 의해 내측 사선방향으로 접촉 지지되고 상부로는 로어레일(210)의 상단수평부(213)와 하향아암부(214)에 각기 접촉되어 내측 사선방향으로 지지한다.On the other hand, the auxiliary roller 232 of the upper side is supported in contact with the inner diagonal direction by the third inclined surface portion 223c of the upper end portion 223 in the lower portion and the upper horizontal portion 213 of the lower rail 210 in the upper portion. And the lower arm portion 214 are respectively contacted and supported in the inner diagonal direction.
이때, 보조롤러(232)에 의한 구름 마찰의 저감을 위해 이를 접촉 지지하는 제3 경사면부(223c)는 도시된 바와 같이 평면적으로 형성됨으로써 상기 보조롤러(232)와 점 접촉이 이루어지도록 함이 바람직하다.In this case, in order to reduce rolling friction by the auxiliary roller 232, the third inclined surface part 223c contacting and supporting the second roller 232 is formed in a planar manner as shown in order to make point contact with the auxiliary roller 232. Do.
상기와 같은 상향단부(223)의 형상 및 메인롤러(231)와 보조롤러(232)의 배치에 의하면, 도 5에 도시된 바와 같이, 어퍼레일(220)에 하중(W)이 가해질 경우 상향단부(223)가 하측의 메인롤러(231)에 의해 지지력(F)을 받아 내측으로 회전 변형하려 할 때에도 내측의 보조롤러(232)에 의해 해당 변형이 차단됨은 물론 상기 보조롤러(232)에 의해 접촉 지지되는 관계가 계속적으로 유지됨에 따라 레일(210, 220) 및 롤러(231, 232) 간의 안정적인 지지구조를 항상 일정하게 유지할 수 있다.According to the shape of the upper end 223 and the arrangement of the main roller 231 and the auxiliary roller 232 as described above, as shown in Figure 5, when the load (W) is applied to the upper rail 220, the upper end When the 223 receives the supporting force F by the lower main roller 231 and tries to rotate the inner side, the deformation is blocked by the inner auxiliary roller 232 as well as contacted by the auxiliary roller 232. As the supported relationship is continuously maintained, a stable support structure between the rails 210 and 220 and the rollers 231 and 232 may be constantly maintained.
또한, 도 4를 참조하면, 내측에서 보조롤러(232)를 지지하는 제3 경사면부(223c)의 길이를 다소 짧게 설정할 수 있게 됨으로써 이와 로어레일(210)측 외측벽부(212) 내지 수평굴곡부(213) 간의 간섭이 발생할 수 있는 여지를 크게 줄일 수 있다. 이에 반해, 상기한 종래의 차량용 시트트랙(도 1의 100)에서는 상향단부(123)의 끝단이 로어레일(110)측 수평굴곡부(113)에 근접 배치됨으로써 접촉 간섭의 우려가 컸으며, 더욱이 어퍼레일(120)이 하중(W)을 받음에 따라 상향단부(123)가 내측으로 회전(R) 변형할 경우에는 내측의 로어레일(110)측 하향아암부(114)와의 접촉 간섭이 발생할 우려까지 있었다.In addition, referring to FIG. 4, the length of the third inclined surface portion 223c supporting the auxiliary rollers 232 may be set to be shorter from the inside, so that the outer rail portion 210 on the lower side of the lower rail 210 and the horizontal curved portion ( 213 may greatly reduce the possibility of interference. On the other hand, in the conventional vehicle seat track (100 in FIG. 1), the end of the upper end portion 123 is disposed close to the horizontal bend portion 113 on the lower rail 110 side. When the upper end 123 rotates inwardly (R) as the rail 120 receives the load (W), until the interference with the lower arm part 114 of the lower rail 110 on the inner side may occur. there was.
도 6은 상기한 차량용 시트트랙(200)의 로킹상태를 도시한 것으로서, 어퍼레일(220)의 내측에 설치되는 로킹장치(240)는 돌출핀(241)의 상하 조작에 따라 상부의 로킹위치(도 6에 도시된 상태)와 하강된 언로킹위치(도면 미도시) 간을 승강한다.FIG. 6 is a view illustrating a locking state of the vehicle seat track 200, and the locking device 240 installed inside the upper rail 220 has an upper locking position according to the vertical operation of the protrusion pin 241. 6) and the lowered unlocking position (not shown).
도 6의 로킹위치에서 로킹장치(240)의 하단에 좌우로 연장 형성되는 로킹아암(242)은 로어레일(210)의 하향아암부(214)를 관통하고 또한 어퍼레일(220)측 상향단부(223)를 관통하여 체결된다.In the locking position of FIG. 6, the locking arm 242 extending left and right at the lower end of the locking device 240 penetrates the lower arm portion 214 of the lower rail 210 and also has an upper end 220 side upward end portion ( 223 is fastened through.
즉, 어퍼레일(220)이 슬라이드되지 못하도록 로킹아암(242)에 의해 체결되는 로어레일(210)측 하향아암부(214)는, 어퍼레일(220)측의 내측벽부(222)와 상향단부(223)와 함께 이들 사이에 배치되어 체결됨으로써 더욱 안정적인 로킹이 이루어진다. 다시 말하면, 슬라이드방향을 기준으로 내측벽부(222)와 하향아암부(214)와 상향단부(223)에 의해 로킹아암(242)에 대한 3점 지지가 달성된다.That is, the lower rail portion 214 on the lower rail 210 side fastened by the locking arm 242 so that the upper rail 220 does not slide, the inner wall portion 222 and the upper end portion of the upper rail 220 side. 223 is disposed between them and fastened to achieve more stable locking. In other words, three-point support for the locking arm 242 is achieved by the inner wall portion 222, the lower arm portion 214, and the upper end portion 223 relative to the slide direction.
이러한 로킹상태의 구현은, 상기한 바와 같이 어퍼레일(220)측 상향단부(223)가 내측 사선방향으로 연장되는 제2 경사면부(223b)와 외측 사선 방향으로 연장되는 제3 경사면부(223c) 사이에 내측단을 이루는 굴곡전환부(223d)가 형성되어 로어레일(210)측 하향아암부(214)에 최근접으로 배치될 수 있기 때문에 가능하다.As described above, the locking state may include the second inclined surface portion 223b extending in the upper diagonal direction and the third inclined surface portion 223c extending in the outer diagonal direction as described above. It is possible because the bending switching portion 223d forming the inner end is disposed between the lower arm portion 214 on the lower rail 210 side.
이에 반해, 도 1의 종래의 차량용 시트트랙(100)에서는, 어퍼레일(120)측 상향단부(123)가 오히려 로어레일(110)측 하향아암부(114)로부터 멀어지는 방향으로 굴곡되어 있으므로 로킹상태에서 로킹아암(도 6의 242 참조)은 어퍼레일(120)측 내측벽부(122)와 로어레일(110)측 하향아암부(114)만을 로킹시킬 수 있으므로, 결과적으로 2점 지지만을 달성할 뿐이다.In contrast, in the conventional vehicle seat track 100 of FIG. 1, the upper end portion 123 of the upper rail 120 is curved in a direction away from the lower arm portion 114 of the lower rail 110, and thus is locked. The locking arm (see 242 in FIG. 6) can lock only the inner wall portion 122 of the upper rail 120 side and the lower arm portion 114 of the lower rail 110 side, resulting in only two-point support. It is only.
이 경우, 시트트랙(100)에 대한 전후 슬라이드 충격 발생 시 어퍼레일(120)의 슬라이드 충격으로 인해 하향아암부(114)에 지지되던 로킹아암(도 6의 242)이 휨변형이 발생하여 상기 하향아암부(114)를 벗어날 수 있는 문제, 즉 어퍼레일(120)의 로킹해제로 인한 자유 슬라이드 문제가 발생할 우려가 있다.In this case, when the front and rear slide impacts on the seat track 100 occur, the rocking arm (242 of FIG. 6) supported by the lower arm portion 114 due to the slide impact of the upper rail 120 is caused to bend downward. There is a concern that a problem that may be released from the arm portion 114, that is, a free slide problem due to the unlocking of the upper rail 120 occurs.
한편, 도 6에서 돌출핀(241)의 하향 조작으로 로킹아암(242)이 하강하여 로어레일(210)측 하향아암부(214)의 하단을 벗어나게 되면 로어레일(210)에 대한 어퍼레일(220)의 로킹이 해제되는 상태, 즉 언로킹 상태가 된다.Meanwhile, in FIG. 6, when the locking arm 242 descends due to the downward manipulation of the protruding pin 241 and is out of the lower end of the lower arm portion 214 on the lower rail 210, the upper rail 220 for the lower rail 210 is shown. ) Is unlocked, that is, unlocked.
이상에서 설명된 차량용 시트트랙(200)은 본 발명의 이해를 돕기 위한 일 실시예에 불과하므로 본 발명의 권리범위 내지 기술적 범위가 상기 설명된 바에 한정되는 것으로 이해되어서는 곤란하다.Since the vehicle seat track 200 described above is only one embodiment to help understanding of the present invention, it is difficult to understand the scope of the present invention to the technical scope of the present invention.
본 발명의 권리범위 내지 기술적 범위는 후술하는 특허청구범위 및 그 균등범위에 의해 정하여진다.The scope of the invention to the technical scope is defined by the claims and equivalents described below.
Claims (5)
- 바닥면부와, 상기 바닥면부의 좌우 양단으로부터 수직으로 상승되는 외측벽부와, 상기 외측벽부의 상단으로부터 내측으로 연장되는 수평굴곡부 및 상기 수평굴곡부의 내측단으로부터 수직으로 하강되는 하향아암부가 형성되는 로어레일과; 상기 바닥면부의 상부에 이격하여 배치되는 상단수평부와, 상기 상단수평부의 좌우 양단으로부터 수직으로 하강되어 상기 하향아암부의 내측에서 대면하는 내측벽부 및 상기 내측벽부의 하단으로부터 상승하여 상기 외측벽부와 상기 하향아암부 사이의 공간으로 연장되는 상향단부가 형성되는 어퍼레일과; 상기 상향단부를 통해 상기 로어레일에 대해 상기 어퍼레일을 슬라이드 가능하게 지지하는 롤러를 포함하는 차량용 시트트랙에 있어서,A lower rail formed with a bottom surface portion, an outer wall portion vertically raised from left and right ends of the bottom surface portion, a horizontal curved portion extending inwardly from an upper end of the outer wall portion, and a downward arm portion vertically lowered from an inner end of the horizontal curved portion; ; The upper horizontal portion spaced apart from the upper and lower ends of the upper and lower horizontal portions and vertically lowered from the left and right ends of the upper horizontal portion, the inner wall portion facing the inner side of the downward arm portion and the lower wall portion rising from the lower end of the inner wall portion; An upper rail having an upper end portion extending into a space between the downward arm portions; In the vehicle seat track comprising a roller for slidably supporting the upper rail with respect to the lower rail through the upper end,상기 어퍼레일의 상향단부는 상기 로어레일의 외측벽부, 수평굴곡부 및 하향아암부에 의해 경계지어지는 내부공간으로 사선방향으로 연장되되, 상기 내측벽부의 하단으로부터 외측 사선방향으로 연장되는 제1 경사면부와, 상기 제1 경사면부의 단부로부터 내측 사선방향으로 연장되는 제2 경사면부 및 상기 제2 경사면부의 단부로부터 다시 외측 사선방향으로 연장되는 제3 경사면부로 형성되고,The upper end of the upper rail extends in an oblique direction to an inner space bounded by an outer wall portion, a horizontal curved portion and a lower arm portion of the lower rail, and a first inclined surface portion extending in an outer diagonal direction from a lower end of the inner wall portion. And a second inclined surface portion extending in an inward oblique direction from an end of the first inclined surface portion and a third inclined surface portion extending in an outward oblique direction from an end of the second inclined surface portion,상기 롤러는,The roller,상기 어퍼레일의 상향단부의 외측으로 배치되어, 하부로는 상기 로어레일의 바닥면부와 외측벽부에 의해 사선방향으로 접촉 지지되고 상부로는 상기 제1 경사면부에 대해 내측 사선방향으로 접촉 지지하는 메인롤러와;The main rail is disposed outwardly of the upper end of the upper rail, and is supported in a diagonal direction by the bottom surface portion and an outer wall portion of the lower rail in the lower portion thereof, and is supported in the inner diagonal direction with respect to the first inclined surface portion in the upper portion thereof. With a roller;상기 어퍼레일의 상향단부의 내측으로 배치되어, 하부로는 상기 제3 경사면부에 의해 내측 사선방향으로 접촉 지지되고 상부로는 상기 로어레일의 상단수평부와 하향아암부를 내측 사선방향으로 접촉 지지하는 보조롤러를 포함하는 것을 특징으로 하는 차량용 시트트랙.It is disposed inwardly of the upper end of the upper rail, the lower portion is in contact with the third inclined surface portion in the inward oblique direction and the upper portion of the upper rail and the lower arm portion in contact with the inner diagonal direction in support of the Vehicle seat track comprising a secondary roller.
- 제1항에 있어서,The method of claim 1,상기 상향단부의 제3 경사면부는 평면적으로 형성됨으로써 상기 보조롤러와 점접촉이 이루어지는 것을 특징으로 하는 차량용 시트트랙.The third inclined surface portion of the upper end is formed in a planar vehicle track, characterized in that the auxiliary roller and the point contact is made.
- 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,상기 상향단부의 제1 경사면부는 상기 메인롤러보다 더 큰 곡률반경을 갖는 굴곡면으로 이루어져 상기 메인롤러를 수용하여 접촉 지지되는 것을 특징으로 하는 차량용 시트트랙.The first inclined surface portion of the upstream end is formed of a curved surface having a radius of curvature larger than that of the main roller vehicle seat track, characterized in that the main roller is received and supported.
- 제3항에 있어서,The method of claim 3,상기 메인롤러는 상기 로어레일의 바닥면부와 외측벽부에 각각 점접촉 지지되는 것을 특징으로 하는 차량용 시트트랙.The main roller is a seat track for a vehicle, characterized in that the point contact is supported by the bottom surface portion and the outer wall portion of the lower rail, respectively.
- 제1항에 있어서,The method of claim 1,상기 어퍼레일의 좌우 내측벽부 사이에 수용 및 설치되어 상하 승강하도록 조작됨으로써 상기 로어레일에 대한 상기 어퍼레일의 로킹 및 언로킹을 달성하는 로킹아암을 갖는 로킹장치를 더 포함하고,And a locking device having a locking arm that is accommodated and installed between left and right inner wall portions of the upper rail and operated to move up and down to achieve locking and unlocking of the upper rail to the lower rail.상기 어퍼레일의 상향단부는 상기 제2 경사면부와 제3 경사면부 사이를 이루는 굴곡전환부가 상기 로어레일의 하향아암부에 근접하도록 배치됨으로써,The upper end portion of the upper rail is disposed so that the bend switching portion between the second inclined surface portion and the third inclined surface portion is close to the downward arm portion of the lower rail,상기 로킹장치에 의한 로킹 시 상기 로킹아암이 상기 로어레일측 하향아암부에 체결되되, 이와 동시에 어퍼레일측 내측벽부와 굴곡전환부에 함께 체결되는 것을 특징으로 하는 차량용 시트트랙.The locking arm is coupled to the lower rail side of the lower rail side when locked by the locking device, and at the same time the upper rail side inner wall portion and the bending switching unit is coupled to the vehicle seat track.
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