WO2017145267A1 - Damper housing structure for front damper - Google Patents
Damper housing structure for front damper Download PDFInfo
- Publication number
- WO2017145267A1 WO2017145267A1 PCT/JP2016/055262 JP2016055262W WO2017145267A1 WO 2017145267 A1 WO2017145267 A1 WO 2017145267A1 JP 2016055262 W JP2016055262 W JP 2016055262W WO 2017145267 A1 WO2017145267 A1 WO 2017145267A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- damper
- rib
- annular
- base
- wall
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
Definitions
- the damper housing includes a housing main body portion that houses the front damper, and a plate-like damper base that closes an upper end opening of the housing main body portion and supports the upper end of the front damper,
- the present invention relates to a damper housing structure of a front damper in which a portion is connected to a front side frame and the damper base is connected to an upper member.
- the present invention has been made in view of the above circumstances, and an object thereof is to effectively reinforce the periphery of a bolt hole for fastening the upper end of a damper to a damper base while minimizing an increase in weight.
- the damper housing has a housing main body portion that houses the front damper, and a plate shape that supports the upper end of the front damper by closing the upper end opening of the housing main body portion.
- the first feature is that the thickness of the annular rib is larger than the thickness of the upper wall of the damper base. Damper housing structure of the front damper is proposed that.
- the upper surface of the upper wall of the damper base is provided with a fall prevention rib that connects the annular rib to the annular wall.
- a damper housing structure for the front damper is proposed.
- the upper surface of the upper wall of the damper base has a first upper surface deformation suppressing rib that extends linearly and is divided by the annular rib
- a damper housing structure for a front damper is proposed in which a second upper surface deformation suppressing rib that extends linearly and at least one of which is tangentially connected to the annular rib is formed.
- At least two of the first upper surface deformation suppression rib and the second upper surface deformation suppression rib cross each other in a T shape.
- the damper housing structure of the front damper having the characteristics 4 is proposed.
- a fifth feature is that the thickness of the second upper surface deformation suppressing rib is larger than the plate thickness of the upper wall of the damper base.
- the end portions of the plurality of fall prevention ribs that are formed adjacent to each other in parallel are closest to the vehicle width direction.
- a damper housing structure for a front damper is proposed, which is connected to the annular wall or reaches the stepped portion formed in the upper surface of the damper base and closest to the vehicle width direction.
- a flange portion protruding downward is formed on the outer periphery of the damper base, and the lower surface of the corner portion of the outer periphery of the damper base is formed.
- a damper housing structure for a front damper according to a seventh feature is proposed in which an opening restraining rib connected to the flange portion is formed.
- the damper base upper wall 21a of the embodiment corresponds to the upper wall of the present invention
- the inner flange portion 21c of the embodiment corresponds to the flange portion of the present invention
- the stat bolt 22 of the embodiment corresponds to the present invention. Corresponds to the bolt.
- the damper housing includes a housing main body portion that houses the front damper, and a plate-shaped damper base that closes the upper end opening of the housing main body portion and supports the upper end of the front damper.
- the housing main body is connected to the front side frame, and the damper base is connected to the upper member.
- the upper surface of the upper wall of the damper base has an annular wall surrounding an opening in which the upper end of the front damper is fitted, and an annular shape surrounding a plurality of bolt holes through which a bolt for fastening the upper end of the front damper passes around the annular wall.
- the vehicle width direction component of the load input from the front damper is transferred from the bolt to the annular rib through the bolt hole. Even if transmitted, since the thickness of the annular rib is larger than the plate thickness of the upper wall of the damper base, it is possible to effectively support the vehicle width direction component of the load and to prevent the annular rib from falling.
- the upper surface of the upper wall of the damper base is provided with a tilt-inhibiting rib that connects the annular rib to the annular wall, so that the load input from the front damper is in the vehicle width direction.
- the component can be supported by the fall-inhibiting rib, and the fall of the annular rib can be more reliably suppressed.
- the upper surface of the upper wall of the damper base has a first upper surface deformation suppressing rib that extends linearly and is divided by an annular rib, and at least one of the linearly extending upper surfaces is annular. Since the second upper surface deformation suppression rib connected to the rib tangentially is formed, the deformation of the damper base can be suppressed by the cooperation of the annular rib, the first upper surface deformation suppression rib, and the second upper surface deformation suppression rib. .
- the fourth aspect of the present invention since at least two of the first upper surface deformation suppression rib and the second upper surface deformation suppression rib intersect each other in a T shape, a small number of upper surface deformation suppression ribs. It is possible to effectively increase the strength and rigidity of the damper base, and at the time of casting the damper base, it is possible to prevent the occurrence of casting defects by spreading hot water evenly with the upper surface deformation suppressing ribs that intersect the T-shape. .
- the thickness of the second upper surface deformation suppressing rib is larger than the plate thickness of the upper wall of the damper base, the upper wall of the damper base having a large area is thinned to reduce the weight. As shown, the strength and rigidity of the damper base can be secured by the second upper surface deformation suppressing rib.
- the end portions of the plurality of fall-inhibiting ribs formed adjacent to each other in parallel are connected to the annular wall closest to the vehicle width direction or on the upper surface of the damper base. Since it has reached the step portion closest to the formed vehicle width direction, it is possible to more efficiently suppress the fall of the annular rib due to the vehicle width direction component of the load input from the front damper.
- a flange portion protruding downward is formed on the outer periphery of the damper base, and an opening restraining rib connected to the flange portion is formed on the lower surface of the corner portion of the outer periphery of the damper base. Therefore, when the load is input from the front damper, the opening suppression rib can suppress the deformation so that the angle between the upper wall of the damper base and the flange portion is opened.
- FIG. 1 is a perspective view of a front part of a vehicle body provided with a damper base.
- FIG. 2 is an enlarged view of part 2 of FIG.
- First embodiment 3 is a cross-sectional view taken along line 3-3 of FIG.
- First embodiment 4 is a cross-sectional view taken along line 4-4 of FIG.
- FIG. 5 is a view taken in the direction of arrow 5 in FIG. (First embodiment)
- the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction are defined with reference to an occupant seated in the driver's seat.
- a front side frame 13 extends forward from a lower portion of a dashboard lower panel 12 that constitutes a rear wall of an engine room 11 at the front of the vehicle body of the vehicle, and an end of the dashboard lower panel 12 in the vehicle width direction.
- the upper member 15 extends forward from the front pillar 14 connected to the section, and the lower member 16 and the front bulkhead upper side 17 extend forward from the front end of the upper member 15.
- a damper housing 19 that houses the front damper 18 includes a housing main body 20 that is formed by pressing a metal plate material, and a damper base 21 that is made of thin cast steel that closes the upper end opening of the housing main body 20.
- the lower end of 20 is connected to the upper wall of the front side frame 13 and the outer wall in the vehicle width direction, and the outer end in the vehicle width direction of the damper base 21 is connected to the inner wall in the vehicle width direction of the upper member 15.
- the damper base 21 made of thin cast steel is a thin plate-like member in the vertical direction, and is connected to both ends of the linear outer flange portion 21b connected to the inner wall in the vehicle width direction of the upper member 15 and the outer flange portion 21b.
- the upper end of 20 is connected.
- a circular opening 21d and three bolt holes 21e surrounding the opening 21d at intervals of 120 ° are formed in the central portion of the damper base upper wall 21a, and a convex portion 18a at the upper end of the front damper 18 is formed.
- three stat bolts 22 at the upper end of the front damper 18 pass through the three bolt holes 21e and are fastened with three nuts 23, respectively (see FIG. 1). ).
- the annular wall 24 protrudes upward so as to surround the periphery of the opening 21d of the damper base upper wall 21a, and three annular ribs so as to surround the periphery of the three bolt holes 21e of the damper base upper wall 21a.
- 25A, 25B, and 25C protrude upward.
- Short fall-inhibiting ribs 26 project outward from the outer peripheral surfaces of the annular ribs 25A, 25B, and 25C. That is, six fall-inhibiting ribs 26 project from the annular rib 25A, and the three fall-inhibiting ribs 26 extend in parallel adjacent to each other and are connected to the annular wall 24 on the outer peripheral surface.
- Five fall-inhibiting ribs 26 project outward from the outer peripheral surface of the annular rib 25B, and four of the fall-inhibiting ribs 26 extend in parallel adjacent to each other, and the remaining one fall-inhibiting rib. 26 is connected to the outer peripheral surface of the annular wall 24. From the outer peripheral surface of the annular rib 25C, one falling suppression rib 26 protrudes outward, and the falling suppression rib 26 is connected to the outer peripheral surface of the annular wall 24. A part of the outer periphery of the damper base upper wall 21a is lowered by one step through the step portion 21f, and the tips of the four parallel fall prevention ribs 26 extending from the annular rib 25B reach one step portion 21f. ing.
- the two falling suppression ribs 26, 26 extend linearly and are paired with the first rib upper surface deformation suppressed by the annular rib 25A.
- the ribs 27a and 27b are configured, and the other two collapse suppressing ribs 26 and 26 also form a pair of first upper surface deformation suppressing ribs 27a and 27b that extend linearly and are divided by the annular rib 25A.
- a pair of first upper surface deformation suppression ribs 27a and 27b that extend linearly and are divided by the annular rib 25C extend from the outer peripheral surface of the annular rib 25C.
- a plurality of linear second upper surface deformation suppression ribs 28a, 28a, 28b... are formed on the upper surface of the damper base upper wall 21a, and two of the second upper surface deformation suppression ribs 28a, 28a are annular ribs. Extends tangentially from 25B. Further, a predetermined one of the first upper surface deformation suppressing ribs 27a, 27b, and the second upper surface deformation suppressing ribs 28a, 28a, 28b,... Intersects in a T shape at four intersections 29.
- a plurality of opening restraining ribs 30 for connecting the lower surface of the damper base upper wall 21a and the inner flange portion 21c are provided at two corners on the lower surface of the damper base 21 on the inner side in the vehicle width direction and at both ends in the front-rear direction.
- the thickness t1 of the damper base upper wall 21a, the outer flange portion 21b and the inner flange portion 21c, and the first upper surface deformation suppressing ribs 27a, 27b, which are general portions of the damper base 21, is 1.6 mm to 1 mm.
- the load transmitted from the front wheel to the front damper 18 while the vehicle is running is input around the bolt hole 21e through which the three stat bolts 22 at the upper end of the front damper 18 pass, and from there, the damper base upper wall 21a Is transmitted to and supported by the upper member 15 via the damper base 21, and is transmitted and supported from the damper base 21 to the front side frame via the damper housing 19.
- the load from the front damper 18 is directly input to the periphery of the bolt holes 21e ..., but the periphery of the bolt holes 21e ... is surrounded and reinforced by the annular ribs 25A, 25B, 25C. Sufficient strength that can withstand the load can be obtained.
- the front damper 18 is mounted so that the upper end side is inclined inward in the vehicle width direction, an inward load in the vehicle width direction acts on the damper base 21 in addition to the upward load.
- the thickness t2 of the annular ribs 25A, 25B, and 25C is larger than the plate thickness t1 of the damper base upper wall 21a, the load of the annular ribs 25A, 25B, and 25C is inward in the vehicle width direction. The load can be effectively supported to prevent the annular ribs 25A, 25B, 25C from falling.
- the end portions of the three fall-inhibiting ribs 26 extending in parallel and adjacent to each other from the annular rib 25A are connected to the annular wall 24 closest to the vehicle width direction and adjacent to each other from the annular rib 25B. Since the end portions of the four fall-inhibiting ribs 26 extending in parallel reach the stepped portion 21f formed on the upper surface of the damper base 21 in the vehicle width direction, the annular rib is caused by a load inward in the vehicle width direction. The fall of 25A and 25B can be suppressed more efficiently.
- first upper surface deformation suppression ribs 27a, 27b; 27a, 27b that extend linearly and are divided by the annular rib 25A, and linearly extend by the annular rib 25C are provided, and two second upper surface deformation suppressing ribs 28a and 28a that extend linearly and are tangentially connected to the annular rib 25B are provided.
- the strength and rigidity of the damper base 21 is increased and the deformation is suppressed by the cooperation of the annular ribs 25A, 25B, 25C, the first upper surface deformation suppressing ribs 27a, 27b, and the second upper surface deformation suppressing ribs 28a, 28a. Can do.
- first upper surface deformation suppression ribs 27a, 27b, and the second upper surface deformation suppression ribs 28a, 28a, 28b,... Intersect each other in a T-shape at four intersections 29, and therefore, a small number of upper surface deformations. Not only can the strength and rigidity of the damper base 21 be effectively increased by the restraining ribs, but the occurrence of casting defects can be prevented by spreading hot water evenly during the casting of the damper base 21 due to the T-shaped intersection of the upper surface deformation restraining ribs. can do.
- the thickness t2 of the second upper surface deformation suppressing ribs 28a, 28a; 28b... Is larger than the plate thickness t1 of the damper base upper wall 21a, the thickness of the damper base upper wall 21a having a large area can be reduced while reducing the weight.
- the strength and rigidity of the damper base 21 can be ensured by the two upper surface deformation suppressing ribs 28a, 28a;
- the opening restraining ribs 30 are formed between the inner flange portion 21c projecting downward from the damper base upper wall 21a and the lower surface of the damper base upper wall 21a, a load is applied from the front damper 18 to the damper base 21.
- the opening restraining ribs 30 can suppress the deformation so that the angle between the damper base upper wall 21a and the inner flange portion 21c is opened.
- the damper base 21 of the embodiment is made of cast steel, but may be made of aluminum alloy or synthetic resin.
- the tips of the fall prevention ribs 26 extending from the annular rib 25B reach the step portion 21f, but the same applies even if the tips of the fall prevention ribs 26 reach the outer periphery of the damper base upper wall 21a. An effect can be obtained.
- the arrangement of the fall suppression ribs 26, the first upper surface deformation suppression ribs 27a, 27b, and the second upper surface deformation suppression ribs 28a, 28a; 28b, is not limited to the embodiment.
Abstract
The upper surface of the upper wall (21a) of a damper base (21) has formed thereon: an annular wall (24) surrounding an opening (21d) in which the upper end of a front damper (18) fits; and annular ribs (25A, 25B, 25C) surrounding a plurality of bolt holes (21e) through which bolts (22) for fastening the upper end of the front damper (18) at positions around the annular wall (24) extend. The abovementioned configuration not only can reinforce around the bolt holes (21e) in the upper wall (21a) of the damper base (21) by means of the annular ribs (25A, 25B, 25C), but can also, even if the vehicle-width-direction component of a load applied from the front damper (18) is transmitted from the bolts (22) to the annular ribs (25A, 25B, 25C) through the bolt holes (21e), effectively support the vehicle-width-direction component of the load and prevent the bending of the annular ribs (25A, 25B, 25C) because the thickness of the annular ribs (25A, 25B, 25C) is greater than the plate thickness of the upper wall (21a) of the damper base (21).
Description
本発明は、ダンパーハウジングが、フロントダンパーを収納するハウジング本体部と、前記ハウジング本体部の上端開口部を閉塞して前記フロントダンパーの上端を支持する板状のダンパーベースとからなり、前記ハウジング本体部がフロントサイドフレームに接続され、前記ダンパーベースがアッパーメンバに接続されるフロントダンパーのダンパーハウジング構造に関する。
According to the present invention, the damper housing includes a housing main body portion that houses the front damper, and a plate-like damper base that closes an upper end opening of the housing main body portion and supports the upper end of the front damper, The present invention relates to a damper housing structure of a front damper in which a portion is connected to a front side frame and the damper base is connected to an upper member.
ダンパーハウジング（サスペンションタワー）の上壁を構成するダンパーベース（トッププレート）にダンパーの上端を締結するボルトを該ダンパーの軸線から外れた位置に配置し、ダンパーベースの上面に前記軸線を中心として放射状に延びる複数の徐変リブを形成したものが、下記特許文献１により公知である。
Bolts that fasten the upper end of the damper are placed on the damper base (top plate) that constitutes the upper wall of the damper housing (suspension tower) at a position away from the axis of the damper, and the upper surface of the damper base is radially centered on the axis. A technique in which a plurality of gradually changing ribs extending in the above-described manner is formed is known from Patent Document 1 below.
しかしながら、上記従来のものは、ダンパーの上端を締結するダンパーベースの締結部であるボルト孔が、その両側を挟むように配置された２枚の直線状の徐変リブで補強されるので、徐変リブ自体が倒れ易くなって締結部の強度・剛性が不足する懸念があり、これを回避するためにダンパーベースの肉厚を厚くすると重量が増加する問題がある。
However, in the above conventional one, since the bolt hole which is the fastening portion of the damper base that fastens the upper end of the damper is reinforced by two linear gradually changing ribs arranged so as to sandwich both sides thereof, There is a concern that the deformed rib itself may easily fall down, and the strength and rigidity of the fastening portion may be insufficient. To avoid this, there is a problem that the weight increases when the thickness of the damper base is increased.
本発明は前述の事情に鑑みてなされたもので、ダンパーベースにダンパーの上端を締結するボルト孔の周囲を、重量の増加を最小限に抑えながら効果的に補強することを目的とする。
The present invention has been made in view of the above circumstances, and an object thereof is to effectively reinforce the periphery of a bolt hole for fastening the upper end of a damper to a damper base while minimizing an increase in weight.
上記目的を達成するために、本発明によれば、ダンパーハウジングが、フロントダンパーを収納するハウジング本体部と、前記ハウジング本体部の上端開口部を閉塞して前記フロントダンパーの上端を支持する板状のダンパーベースとからなり、前記ハウジング本体部がフロントサイドフレームに接続され、前記ダンパーベースがアッパーメンバに接続されるフロントダンパーのダンパーハウジング構造であって、前記ダンパーベースの上壁の上面には、前記フロントダンパーの上端が嵌合する開口を囲繞する環状壁と、前記環状壁の周囲で前記フロントダンパーの上端を締結するボルトが貫通する複数のボルト孔を囲繞する環状リブとが形成され、前記環状リブの厚さは前記ダンパーベースの上壁の板厚よりも大きいことを第１の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
In order to achieve the above object, according to the present invention, the damper housing has a housing main body portion that houses the front damper, and a plate shape that supports the upper end of the front damper by closing the upper end opening of the housing main body portion. A damper housing structure of a front damper in which the housing main body is connected to a front side frame and the damper base is connected to an upper member, and the upper surface of the upper wall of the damper base is An annular wall that surrounds an opening into which the upper end of the front damper is fitted, and an annular rib that surrounds a plurality of bolt holes through which a bolt that fastens the upper end of the front damper passes around the annular wall; The first feature is that the thickness of the annular rib is larger than the thickness of the upper wall of the damper base. Damper housing structure of the front damper is proposed that.
また本発明によれば、前記第１の特徴に加えて、前記ダンパーベースの上壁の上面には、前記環状リブを前記環状壁に接続する倒れ抑制リブが形成されることを第２の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the present invention, in addition to the first feature, the upper surface of the upper wall of the damper base is provided with a fall prevention rib that connects the annular rib to the annular wall. A damper housing structure for the front damper is proposed.
また本発明によれば、前記第１または第２の特徴に加えて、前記ダンパーベースの上壁の上面には、直線状に延びて前記環状リブにより分断される第１上面変形抑制リブと、直線状に延びて少なくとも一つが前記環状リブに接線状に接続する第２上面変形抑制リブとが形成されることを第３の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the invention, in addition to the first or second feature, the upper surface of the upper wall of the damper base has a first upper surface deformation suppressing rib that extends linearly and is divided by the annular rib, A damper housing structure for a front damper is proposed in which a second upper surface deformation suppressing rib that extends linearly and at least one of which is tangentially connected to the annular rib is formed.
また本発明によれば、前記第３の特徴に加えて、前記第１上面変形抑制リブおよび前記第２上面変形抑制リブのうちの少なくとも二つは、相互にＴ字状に交差することを第４の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the present invention, in addition to the third feature, at least two of the first upper surface deformation suppression rib and the second upper surface deformation suppression rib cross each other in a T shape. The damper housing structure of the front damper having the characteristics 4 is proposed.
また本発明によれば、前記第３または第４の特徴に加えて、前記第２上面変形抑制リブの厚さは前記ダンパーベースの上壁の板厚よりも大きいことを第５の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the invention, in addition to the third or fourth feature, a fifth feature is that the thickness of the second upper surface deformation suppressing rib is larger than the plate thickness of the upper wall of the damper base. A damper housing structure for the front damper is proposed.
また本発明によれば、前記第２～第５の何れか１つの特徴に加えて、相互に隣接して平行に形成された複数の前記倒れ抑制リブの端部が、車幅方向に直近の前記環状壁に接続し、あるいは前記ダンパーベースの上面に形成された車幅方向に直近の段部に達していることを第６の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the present invention, in addition to any one of the second to fifth features, the end portions of the plurality of fall prevention ribs that are formed adjacent to each other in parallel are closest to the vehicle width direction. A damper housing structure for a front damper is proposed, which is connected to the annular wall or reaches the stepped portion formed in the upper surface of the damper base and closest to the vehicle width direction.
また本発明によれば、前記第１～第６の何れか１つの特徴に加えて、前記ダンパーベースの外周には下向きに突出するフランジ部が形成され、前記ダンパーベースの外周の角部の下面には前記フランジ部に接続する開き抑制リブが形成されることを第７の特徴とするフロントダンパーのダンパーハウジング構造が提案される。
According to the invention, in addition to any one of the first to sixth features, a flange portion protruding downward is formed on the outer periphery of the damper base, and the lower surface of the corner portion of the outer periphery of the damper base is formed. A damper housing structure for a front damper according to a seventh feature is proposed in which an opening restraining rib connected to the flange portion is formed.
なお、実施の形態のダンパーベース上壁２１ａは本発明の上壁に対応し、実施の形態の内側フランジ部２１ｃは本発明のフランジ部に対応し、実施の形態のスタットボルト２２は本発明のボルトに対応する。
The damper base upper wall 21a of the embodiment corresponds to the upper wall of the present invention, the inner flange portion 21c of the embodiment corresponds to the flange portion of the present invention, and the stat bolt 22 of the embodiment corresponds to the present invention. Corresponds to the bolt.
本発明の第１の特徴によれば、ダンパーハウジングは、フロントダンパーを収納するハウジング本体部と、ハウジング本体部の上端開口部を閉塞してフロントダンパーの上端を支持する板状のダンパーベースとからなり、ハウジング本体部がフロントサイドフレームに接続され、ダンパーベースがアッパーメンバに接続される。
According to the first aspect of the present invention, the damper housing includes a housing main body portion that houses the front damper, and a plate-shaped damper base that closes the upper end opening of the housing main body portion and supports the upper end of the front damper. Thus, the housing main body is connected to the front side frame, and the damper base is connected to the upper member.
ダンパーベースの上壁の上面には、フロントダンパーの上端が嵌合する開口を囲繞する環状壁と、環状壁の周囲でフロントダンパーの上端を締結するボルトが貫通する複数のボルト孔を囲繞する環状リブとが形成されるので、ダンパーベースの上壁のボルト孔の周囲を環状リブで補強できるだけでなく、フロントダンパーから入力される荷重の車幅方向成分がボルトからボルト孔を介して環状リブに伝達されても、環状リブの厚さはダンパーベースの上壁の板厚よりも大きいので、前記荷重の車幅方向成分を効果的に支持して環状リブの倒れを抑制することができる。
The upper surface of the upper wall of the damper base has an annular wall surrounding an opening in which the upper end of the front damper is fitted, and an annular shape surrounding a plurality of bolt holes through which a bolt for fastening the upper end of the front damper passes around the annular wall. In addition to reinforcing the periphery of the bolt hole on the upper wall of the damper base with an annular rib, the vehicle width direction component of the load input from the front damper is transferred from the bolt to the annular rib through the bolt hole. Even if transmitted, since the thickness of the annular rib is larger than the plate thickness of the upper wall of the damper base, it is possible to effectively support the vehicle width direction component of the load and to prevent the annular rib from falling.
また本発明の第２の特徴によれば、ダンパーベースの上壁の上面には、環状リブを環状壁に接続する倒れ抑制リブが形成されるので、フロントダンパーから入力される荷重の車幅方向成分を倒れ抑制リブで支持して環状リブの倒れを一層確実に抑制することができる。
According to the second aspect of the present invention, the upper surface of the upper wall of the damper base is provided with a tilt-inhibiting rib that connects the annular rib to the annular wall, so that the load input from the front damper is in the vehicle width direction. The component can be supported by the fall-inhibiting rib, and the fall of the annular rib can be more reliably suppressed.
また本発明の第３の特徴によれば、ダンパーベースの上壁の上面には、直線状に延びて環状リブにより分断される第１上面変形抑制リブと、直線状に延びて少なくとも一つが環状リブに接線状に接続する第２上面変形抑制リブとが形成されるので、環状リブ、第１上面変形抑制リブおよび第２上面変形抑制リブの協働によりダンパーベースの変形を抑制することができる。
According to the third aspect of the present invention, the upper surface of the upper wall of the damper base has a first upper surface deformation suppressing rib that extends linearly and is divided by an annular rib, and at least one of the linearly extending upper surfaces is annular. Since the second upper surface deformation suppression rib connected to the rib tangentially is formed, the deformation of the damper base can be suppressed by the cooperation of the annular rib, the first upper surface deformation suppression rib, and the second upper surface deformation suppression rib. .
また本発明の第４の特徴によれば、第１上面変形抑制リブおよび第２上面変形抑制リブのうちの少なくとも二つは、相互にＴ字状に交差するので、少ない本数の上面変形抑制リブでダンパーベースの強度および剛性を効果的に高めることができ、しかもダンパーベースの鋳造時に、Ｔ字状に交差する上面変形抑制リブで湯を満遍なく行き渡らせて鋳造欠陥の発生を防止することができる。
According to the fourth aspect of the present invention, since at least two of the first upper surface deformation suppression rib and the second upper surface deformation suppression rib intersect each other in a T shape, a small number of upper surface deformation suppression ribs. It is possible to effectively increase the strength and rigidity of the damper base, and at the time of casting the damper base, it is possible to prevent the occurrence of casting defects by spreading hot water evenly with the upper surface deformation suppressing ribs that intersect the T-shape. .
また本発明の第５の特徴によれば、第２上面変形抑制リブの厚さはダンパーベースの上壁の板厚よりも大きいので、面積の大きいダンパーベースの上壁を薄肉にして軽量化を図りながら、第２上面変形抑制リブでダンパーベースの強度および剛性を確保することができる。
According to the fifth aspect of the present invention, since the thickness of the second upper surface deformation suppressing rib is larger than the plate thickness of the upper wall of the damper base, the upper wall of the damper base having a large area is thinned to reduce the weight. As shown, the strength and rigidity of the damper base can be secured by the second upper surface deformation suppressing rib.
また本発明の第６の特徴によれば、相互に隣接して平行に形成された複数の倒れ抑制リブの端部が、車幅方向に直近の環状壁に接続し、あるいはダンパーベースの上面に形成された車幅方向に直近の段部に達しているので、フロントダンパーから入力される荷重の車幅方向成分による環状リブの倒れを一層効率的に抑制することができる。
According to the sixth aspect of the present invention, the end portions of the plurality of fall-inhibiting ribs formed adjacent to each other in parallel are connected to the annular wall closest to the vehicle width direction or on the upper surface of the damper base. Since it has reached the step portion closest to the formed vehicle width direction, it is possible to more efficiently suppress the fall of the annular rib due to the vehicle width direction component of the load input from the front damper.
また本発明の第７の特徴によれば、ダンパーベースの外周には下向きに突出するフランジ部が形成され、ダンパーベースの外周の角部の下面にはフランジ部に接続する開き抑制リブが形成されるので、フロントダンパーから荷重が入力したときに、ダンパーベースの上壁およびフランジ部間の角度が開くように変形するのを開き抑制リブにより抑制することができる。
According to the seventh feature of the present invention, a flange portion protruding downward is formed on the outer periphery of the damper base, and an opening restraining rib connected to the flange portion is formed on the lower surface of the corner portion of the outer periphery of the damper base. Therefore, when the load is input from the front damper, the opening suppression rib can suppress the deformation so that the angle between the upper wall of the damper base and the flange portion is opened.
１４ フロントサイドフレーム
１５ アッパーメンバ
１８ フロントダンパー
１９ ダンパーハウジング
２０ ハウジング本体部
２１ ダンパーベース
２１ａ ダンパーベース上壁（上壁）
２１ｃ 内側フランジ部（フランジ部）
２１ｄ 開口
２１ｅ ボルト孔
２１ｆ 段部
２２ スタッドボルト（ボルト）
２４ 環状壁
２５Ａ 環状リブ
２５Ｂ 環状リブ
２５Ｃ 環状リブ
２６ 倒れ抑制リブ
２７ａ 第１上面変形抑制リブ
２７ｂ 第１上面変形抑制リブ
２８ａ 第２上面変形抑制リブ
２８ｂ 第２上面変形抑制リブ
３０ 開き抑制リブ 14Front side frame 15 Upper member 18 Front damper 19 Damper housing 20 Housing main body 21 Damper base 21a Damper base upper wall (upper wall)
21c Inner flange (flange)
21d Opening 21e Bolt hole 21f Step 22 Stud bolt (bolt)
24Annular Wall 25A Annular Rib 25B Annular Rib 25C Annular Rib 26 Collapsing Repression Rib 27a First Upper Surface Deformation Rib 27b First Upper Deformation Depression Rib 28a Second Upper Deformation Depression Rib 28b Second Upper Deformation Rib 30
１５ アッパーメンバ
１８ フロントダンパー
１９ ダンパーハウジング
２０ ハウジング本体部
２１ ダンパーベース
２１ａ ダンパーベース上壁（上壁）
２１ｃ 内側フランジ部（フランジ部）
２１ｄ 開口
２１ｅ ボルト孔
２１ｆ 段部
２２ スタッドボルト（ボルト）
２４ 環状壁
２５Ａ 環状リブ
２５Ｂ 環状リブ
２５Ｃ 環状リブ
２６ 倒れ抑制リブ
２７ａ 第１上面変形抑制リブ
２７ｂ 第１上面変形抑制リブ
２８ａ 第２上面変形抑制リブ
２８ｂ 第２上面変形抑制リブ
３０ 開き抑制リブ 14
21c Inner flange (flange)
24
以下、図１～図５に基づいて本発明の実施の形態を説明する。尚、本明細書において前後方向、左右方向（車幅方向）および上下方向とは、運転席に着座した乗員を基準として定義される。
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present specification, the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction are defined with reference to an occupant seated in the driver's seat.
図１に示すように、車両の車体前部のエンジンルーム１１の後壁を構成するダッシュボードロアパネル１２の下部からフロントサイドフレーム１３が前方に延出するとともに、ダッシュボードロアパネル１２の車幅方向端部に接続されたフロントピラー１４からアッパーメンバ１５が前方に延出し、更にアッパーメンバ１５の前端からロアメンバ１６およびフロントバルクヘッドアッパーサイド１７が前方に延出する。内部にフロントダンパー１８を収納するハンパーハウジング１９は、金属板材をプレス加工したハウジング本体部２０と、ハウジング本体部２０の上端開口部を閉塞する薄肉鋳鋼製のダンパーベース２１とからなり、ハウジング本体部２０の下端がフロントサイドフレーム１３の上壁および車幅方向外壁に接続され、ダンパーベース２１の車幅方向外端がアッパーメンバ１５の車幅方向内壁に接続される。
As shown in FIG. 1, a front side frame 13 extends forward from a lower portion of a dashboard lower panel 12 that constitutes a rear wall of an engine room 11 at the front of the vehicle body of the vehicle, and an end of the dashboard lower panel 12 in the vehicle width direction. The upper member 15 extends forward from the front pillar 14 connected to the section, and the lower member 16 and the front bulkhead upper side 17 extend forward from the front end of the upper member 15. A damper housing 19 that houses the front damper 18 includes a housing main body 20 that is formed by pressing a metal plate material, and a damper base 21 that is made of thin cast steel that closes the upper end opening of the housing main body 20. The lower end of 20 is connected to the upper wall of the front side frame 13 and the outer wall in the vehicle width direction, and the outer end in the vehicle width direction of the damper base 21 is connected to the inner wall in the vehicle width direction of the upper member 15.
次に、図２～図４を参照してダンパーベース２１の構造を詳述する。
Next, the structure of the damper base 21 will be described in detail with reference to FIGS.
薄肉鋳鋼製のダンパーベース２１は上下方向に薄い皿状の部材であって、アッパーメンバ１５の車幅方向内壁に接続される直線状の外側フランジ部２１ｂと、外側フランジ部２１ｂの両端に接続されて車幅方向内側に延びるＵ字状の内側フランジ部２１ｃとにより外周を囲まれた略平坦なダンパーベース上壁２１ａを備えており、Ｕ字状の内側フランジ部２１ｃの外周面にハウジング本体部２０の上端が接続される。ダンパーベース上壁２１ａの中央部には円形の開口２１ｄと、その開口２１ｄの周囲を１２０゜間隔で取り囲む３個のボルト孔２１ｅ…とが形成されており、フロントダンパー１８の上端の凸部１８ａが開口２１ｄに嵌合した状態で、フロントダンパー１８の上端の３本のスタットボルト２２…が３個のボルト孔２１ｅ…を貫通して３個のナット２３…でそれぞれ締結される（図１参照）。
The damper base 21 made of thin cast steel is a thin plate-like member in the vertical direction, and is connected to both ends of the linear outer flange portion 21b connected to the inner wall in the vehicle width direction of the upper member 15 and the outer flange portion 21b. A substantially flat damper base upper wall 21a surrounded by a U-shaped inner flange portion 21c extending inward in the vehicle width direction, and a housing body portion on the outer peripheral surface of the U-shaped inner flange portion 21c. The upper end of 20 is connected. A circular opening 21d and three bolt holes 21e surrounding the opening 21d at intervals of 120 ° are formed in the central portion of the damper base upper wall 21a, and a convex portion 18a at the upper end of the front damper 18 is formed. Are fitted in the opening 21d, and three stat bolts 22 at the upper end of the front damper 18 pass through the three bolt holes 21e and are fastened with three nuts 23, respectively (see FIG. 1). ).
ダンパーベース上壁２１ａの開口２１ｄの周囲を囲繞するように環状壁２４が上向きに突出するとともに、ダンパーベース上壁２１ａの３個のボルト孔２１ｅ…の周囲を囲繞するように３個の環状リブ２５Ａ，２５Ｂ，２５Ｃが上向きに突出する。環状リブ２５Ａ，２５Ｂ，２５Ｃの外周面から短い倒れ抑制リブ２６…が外向きに突出する。すなわち、環状リブ２５Ａからは６本の倒れ抑制リブ２６…が突出し、そのうちの３本の倒れ抑制リブ２６…は相互に隣接して平行に延び、環状壁２４に外周面に接続する。環状リブ２５Ｂの外周面からは５本の倒れ抑制リブ２６…が外向きに突出し、そのうちの４本の倒れ抑制リブ２６…は相互に隣接して平行に延び、残りの１本の倒れ抑制リブ２６は環状壁２４に外周面に接続する。環状リブ２５Ｃの外周面からは１本の倒れ抑制リブ２６が外向きに突出し、その倒れ抑制リブ２６は環状壁２４に外周面に接続する。ダンパーベース上壁２１ａの外周の一部は段部２１ｆ…を介して一段低くなっており、環状リブ２５Ｂから延びる４本の平行な倒れ抑制リブ２６…の先端は、一つの段部２１ｆに達している。
The annular wall 24 protrudes upward so as to surround the periphery of the opening 21d of the damper base upper wall 21a, and three annular ribs so as to surround the periphery of the three bolt holes 21e of the damper base upper wall 21a. 25A, 25B, and 25C protrude upward. Short fall-inhibiting ribs 26 project outward from the outer peripheral surfaces of the annular ribs 25A, 25B, and 25C. That is, six fall-inhibiting ribs 26 project from the annular rib 25A, and the three fall-inhibiting ribs 26 extend in parallel adjacent to each other and are connected to the annular wall 24 on the outer peripheral surface. Five fall-inhibiting ribs 26 project outward from the outer peripheral surface of the annular rib 25B, and four of the fall-inhibiting ribs 26 extend in parallel adjacent to each other, and the remaining one fall-inhibiting rib. 26 is connected to the outer peripheral surface of the annular wall 24. From the outer peripheral surface of the annular rib 25C, one falling suppression rib 26 protrudes outward, and the falling suppression rib 26 is connected to the outer peripheral surface of the annular wall 24. A part of the outer periphery of the damper base upper wall 21a is lowered by one step through the step portion 21f, and the tips of the four parallel fall prevention ribs 26 extending from the annular rib 25B reach one step portion 21f. ing.
また環状リブ２５Ａの外周面から延びる６本の倒れ抑制リブ２６…のうちの２本の倒れ抑制リブ２６，２６は、直線状に延びて環状リブ２５Ａにより分断される一対の第１上面変形抑制リブ２７ａ，２７ｂを構成し、他の２本の倒れ抑制リブ２６，２６も、直線状に延びて環状リブ２５Ａにより分断される一対の第１上面変形抑制リブ２７ａ，２７ｂを構成する。また環状リブ２５Ｃの外周面からは、直線状に延びて環状リブ２５Ｃにより分断される一対の第１上面変形抑制リブ２７ａ，２７ｂが延出する。
Of the six falling suppression ribs 26 extending from the outer peripheral surface of the annular rib 25A, the two falling suppression ribs 26, 26 extend linearly and are paired with the first rib upper surface deformation suppressed by the annular rib 25A. The ribs 27a and 27b are configured, and the other two collapse suppressing ribs 26 and 26 also form a pair of first upper surface deformation suppressing ribs 27a and 27b that extend linearly and are divided by the annular rib 25A. A pair of first upper surface deformation suppression ribs 27a and 27b that extend linearly and are divided by the annular rib 25C extend from the outer peripheral surface of the annular rib 25C.
またダンパーベース上壁２１ａの上面には複数本の直線状の第２上面変形抑制リブ２８ａ，２８ａ，２８ｂ…が形成されており、そのうち２本の第２上面変形抑制リブ２８ａ，２８ａは環状リブ２５Ｂから接線方向に延出する。さらに第１上面変形抑制リブ２７ａ…，２７ｂ…および第２上面変形抑制リブ２８ａ，２８ａ，２８ｂ…のうちの所定のものが、四つの交点２９…においてＴ字状に交差する。
Further, a plurality of linear second upper surface deformation suppression ribs 28a, 28a, 28b... Are formed on the upper surface of the damper base upper wall 21a, and two of the second upper surface deformation suppression ribs 28a, 28a are annular ribs. Extends tangentially from 25B. Further, a predetermined one of the first upper surface deformation suppressing ribs 27a, 27b, and the second upper surface deformation suppressing ribs 28a, 28a, 28b,... Intersects in a T shape at four intersections 29.
またダンパーベース２１の下面における車幅方向内側かつ前後方向両端の二つの角部には、ダンパーベース上壁２１ａの下面および内側フランジ部２１ｃを接続する複数の開き抑制リブ３０…が設けられる。
Further, a plurality of opening restraining ribs 30 for connecting the lower surface of the damper base upper wall 21a and the inner flange portion 21c are provided at two corners on the lower surface of the damper base 21 on the inner side in the vehicle width direction and at both ends in the front-rear direction.
実施の形態において、ダンパーベース２１の一般部であるダンパーベース上壁２１ａ、外側フランジ部２１ｂおよび内側フランジ部２１ｃ、第１上面変形抑制リブ２７ａ…，２７ｂ…の厚さｔ１は１．６ｍｍ～１．８ｍｍであるが、環状リブ２５Ａ，２５Ｂ，２５Ｃおよび第２上面変形抑制リブ２８ａ，２８ａ，２８ｂ…の厚さｔ２は、それよりも厚い２ｍｍ～３ｍｍである（図３および図４参照）。
In the embodiment, the thickness t1 of the damper base upper wall 21a, the outer flange portion 21b and the inner flange portion 21c, and the first upper surface deformation suppressing ribs 27a, 27b, which are general portions of the damper base 21, is 1.6 mm to 1 mm. The thickness t2 of the annular ribs 25A, 25B, 25C and the second upper surface deformation suppressing ribs 28a, 28a, 28b... Is 2 mm to 3 mm thicker than that (see FIGS. 3 and 4).
次に、上記構成を備えた本発明の実施の形態の作用を説明する。
Next, the operation of the embodiment of the present invention having the above configuration will be described.
車両の走行中に前輪からフロントダンパー１８に伝達された荷重は、フロントダンパー１８の上端の３本のスタットボルト２２…が貫通するボルト孔２１ｅ…の周囲に入力し、そこからダンパーベース上壁２１ａを介してアッパーメンバ１５に伝達されて支持されるとともに、ダンパーベース２１からダンパーハウジング１９を介してフロントサイドフレームに伝達されて支持される。このとき、フロントダンパー１８からの荷重はボルト孔２１ｅ…の周囲に直接入力するが、ボルト孔２１ｅ…の周囲は環状リブ２５Ａ，２５Ｂ，２５Ｃにより囲まれて補強されるため、フロントダンパー１８からの荷重に耐え得る充分な強度を得ることができる。
The load transmitted from the front wheel to the front damper 18 while the vehicle is running is input around the bolt hole 21e through which the three stat bolts 22 at the upper end of the front damper 18 pass, and from there, the damper base upper wall 21a Is transmitted to and supported by the upper member 15 via the damper base 21, and is transmitted and supported from the damper base 21 to the front side frame via the damper housing 19. At this time, the load from the front damper 18 is directly input to the periphery of the bolt holes 21e ..., but the periphery of the bolt holes 21e ... is surrounded and reinforced by the annular ribs 25A, 25B, 25C. Sufficient strength that can withstand the load can be obtained.
またフロントダンパー１８は上端側が車幅方向内側に傾くように傾斜して取り付けられるため、ダンパーベース２１には上向きの荷重に加えて車幅方向内向きの荷重が作用し、この車幅方向内向きの荷重が環状リブ２５Ａ，２５Ｂ，２５Ｃを倒すように作用するが、環状リブ２５Ａ，２５Ｂ，２５Ｃの厚さｔ２はダンパーベース上壁２１ａの板厚ｔ１よりも大きいので、車幅方向内向きの荷重を効果的に支持して環状リブ２５Ａ，２５Ｂ，２５Ｃの倒れを抑制することができる。しかもダンパーベース上壁２１ａの上面には、環状リブ２５Ａ，２５Ｂ，２５Ｃを環状壁２４に接続する複数の倒れ抑制リブ２６…が形成されるので、車幅方向内向きの荷重を倒れ抑制リブ２６…で支持して環状リブ２５Ａ，２５Ｂ，２５Ｃの倒れを一層確実に抑制することができる。
Further, since the front damper 18 is mounted so that the upper end side is inclined inward in the vehicle width direction, an inward load in the vehicle width direction acts on the damper base 21 in addition to the upward load. However, since the thickness t2 of the annular ribs 25A, 25B, and 25C is larger than the plate thickness t1 of the damper base upper wall 21a, the load of the annular ribs 25A, 25B, and 25C is inward in the vehicle width direction. The load can be effectively supported to prevent the annular ribs 25A, 25B, 25C from falling. In addition, since a plurality of collapse suppression ribs 26 are formed on the upper surface of the damper base upper wall 21a to connect the annular ribs 25A, 25B, 25C to the annular wall 24, the inward load in the vehicle width direction is suppressed. It is possible to more reliably suppress the falling of the annular ribs 25A, 25B, 25C.
特に、環状リブ２５Ａから相互に隣接して平行に延びる３本の倒れ抑制リブ２６…の端部が、車幅方向に直近の環状壁２４に接続し、かつ環状リブ２５Ｂから相互に隣接して平行に延びる４本の倒れ抑制リブ２６…の端部が、ダンパーベース２１の上面に形成された車幅方向に直近の段部２１ｆに達しているので、車幅方向内向きの荷重による環状リブ２５Ａ，２５Ｂの倒れを一層効率的に抑制することができる。
In particular, the end portions of the three fall-inhibiting ribs 26 extending in parallel and adjacent to each other from the annular rib 25A are connected to the annular wall 24 closest to the vehicle width direction and adjacent to each other from the annular rib 25B. Since the end portions of the four fall-inhibiting ribs 26 extending in parallel reach the stepped portion 21f formed on the upper surface of the damper base 21 in the vehicle width direction, the annular rib is caused by a load inward in the vehicle width direction. The fall of 25A and 25B can be suppressed more efficiently.
またダンパーベース上壁２１ａの上面には、直線状に延びて環状リブ２５Ａにより分断される２本の第１上面変形抑制リブ２７ａ，２７ｂ；２７ａ，２７ｂと、直線状に延びて環状リブ２５Ｃにより分断される１本の第１上面変形抑制リブ２７ａ，２７ｂとが設けられ、更に直線状に延びて環状リブ２５Ｂに接線状に接続する２本の第２上面変形抑制リブ２８ａ，２８ａが設けられるので、環状リブ２５Ａ，２５Ｂ，２５Ｃ、第１上面変形抑制リブ２７ａ…，２７ｂ…および第２上面変形抑制リブ２８ａ，２８ａの協働によりダンパーベース２１の強度・剛性を高めて変形を抑制することができる。
Further, on the upper surface of the damper base upper wall 21a, two first upper surface deformation suppression ribs 27a, 27b; 27a, 27b that extend linearly and are divided by the annular rib 25A, and linearly extend by the annular rib 25C. One first upper surface deformation suppressing ribs 27a and 27b to be divided are provided, and two second upper surface deformation suppressing ribs 28a and 28a that extend linearly and are tangentially connected to the annular rib 25B are provided. Therefore, the strength and rigidity of the damper base 21 is increased and the deformation is suppressed by the cooperation of the annular ribs 25A, 25B, 25C, the first upper surface deformation suppressing ribs 27a, 27b, and the second upper surface deformation suppressing ribs 28a, 28a. Can do.
更に、第１上面変形抑制リブ２７ａ…，２７ｂ…および第２上面変形抑制リブ２８ａ，２８ａ，２８ｂ…は，４カ所の交点２９…で相互にＴ字状に交差するので、少ない本数の上面変形抑制リブでダンパーベース２１の強度および剛性を効果的に高めることができるだけでなく、上面変形抑制リブのＴ字状の交差によりダンパーベース２１の鋳造時に満遍なく湯を行き渡らせて鋳造欠陥の発生を防止することができる。
Further, the first upper surface deformation suppression ribs 27a, 27b, and the second upper surface deformation suppression ribs 28a, 28a, 28b,... Intersect each other in a T-shape at four intersections 29, and therefore, a small number of upper surface deformations. Not only can the strength and rigidity of the damper base 21 be effectively increased by the restraining ribs, but the occurrence of casting defects can be prevented by spreading hot water evenly during the casting of the damper base 21 due to the T-shaped intersection of the upper surface deformation restraining ribs. can do.
しかも第２上面変形抑制リブ２８ａ，２８ａ；２８ｂ…の厚さｔ２はダンパーベース上壁２１ａの板厚ｔ１よりも大きいので、面積の大きいダンパーベース上壁２１ａを薄肉にして軽量化を図りながら第２上面変形抑制リブ２８ａ，２８ａ；２８ｂ…でダンパーベース２１の強度および剛性を確保することができる。
Moreover, since the thickness t2 of the second upper surface deformation suppressing ribs 28a, 28a; 28b... Is larger than the plate thickness t1 of the damper base upper wall 21a, the thickness of the damper base upper wall 21a having a large area can be reduced while reducing the weight. The strength and rigidity of the damper base 21 can be ensured by the two upper surface deformation suppressing ribs 28a, 28a;
またダンパーベース上壁２１ａから下向きに突出する内側フランジ部２１ｃと、ダンパーベース上壁２１ａの下面との間に複数の開き抑制リブ３０…を形成したので、フロントダンパー１８からダンパーベース２１に荷重が入力したときに、ダンパーベース上壁２１ａおよび内側フランジ部２１ｃ間の角度が開くように変形するのを開き抑制リブ３０…により抑制することができる。
Further, since the plurality of opening restraining ribs 30 are formed between the inner flange portion 21c projecting downward from the damper base upper wall 21a and the lower surface of the damper base upper wall 21a, a load is applied from the front damper 18 to the damper base 21. When the input is performed, the opening restraining ribs 30 can suppress the deformation so that the angle between the damper base upper wall 21a and the inner flange portion 21c is opened.
以上、本発明の実施の形態を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。
Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.
例えば、実施の形態のダンパーベース２１は鋳鋼製であるが、アルミニウム合金製あるいは合成樹脂製であっても良い。
For example, the damper base 21 of the embodiment is made of cast steel, but may be made of aluminum alloy or synthetic resin.
また実施の形態では環状リブ２５Ｂから延びる倒れ抑制リブ２６…の先端が段部２１ｆに達しているが、倒れ抑制リブ２６…の先端がダンパーベース上壁２１ａの外周部に達していても同様の作用効果を得ることができる。
In the embodiment, the tips of the fall prevention ribs 26 extending from the annular rib 25B reach the step portion 21f, but the same applies even if the tips of the fall prevention ribs 26 reach the outer periphery of the damper base upper wall 21a. An effect can be obtained.
またダンパーベース２１の各部の肉厚の具体的な数値は、実施の形態に限定されるものではない。
Further, specific numerical values of the thickness of each part of the damper base 21 are not limited to the embodiment.
また倒れ抑制リブ２６…、第１上面変形抑制リブ２７ａ…，２７ｂ…および第２上面変形抑制リブ２８ａ，２８ａ；２８ｂ…の配置は、実施の形態に限定されるものではない。
Further, the arrangement of thefall suppression ribs 26, the first upper surface deformation suppression ribs 27a, 27b, and the second upper surface deformation suppression ribs 28a, 28a; 28b, is not limited to the embodiment.
Further, the arrangement of the
Claims (7)
- ダンパーハウジング（１９）が、フロントダンパー（１８）を収納するハウジング本体部（２０）と、前記ハウジング本体部（２０）の上端開口部を閉塞して前記フロントダンパー（１８）の上端を支持する板状のダンパーベース（２１）とからなり、前記ハウジング本体部（２０）がフロントサイドフレーム（１３）に接続され、前記ダンパーベース（２１）がアッパーメンバ（１５）に接続されるフロントダンパーのダンパーハウジング構造であって、
前記ダンパーベース（２１）の上壁（２１ａ）の上面には、前記フロントダンパー（１８）の上端が嵌合する開口（２１ｄ）を囲繞する環状壁（２４）と、前記環状壁（２４）の周囲で前記フロントダンパー（１８）の上端を締結するボルト（２２）が貫通する複数のボルト孔（２１ｅ）を囲繞する環状リブ（２５Ａ，２５Ｂ，２５Ｃ）とが形成され、前記環状リブ（２５Ａ，２５Ｂ，２５Ｃ）の厚さは前記ダンパーベース（２１）の上壁（２１ａ）の板厚よりも大きいことを特徴とするフロントダンパーのダンパーハウジング構造。 A damper housing (19) includes a housing main body (20) that houses the front damper (18), and a plate that closes the upper end opening of the housing main body (20) and supports the upper end of the front damper (18). A damper housing of a front damper, comprising a housing-like damper base (21), wherein the housing body (20) is connected to a front side frame (13), and the damper base (21) is connected to an upper member (15). Structure,
On the upper surface of the upper wall (21a) of the damper base (21), there are an annular wall (24) surrounding an opening (21d) into which the upper end of the front damper (18) is fitted, and an annular wall (24). An annular rib (25A, 25B, 25C) surrounding a plurality of bolt holes (21e) through which a bolt (22) that fastens the upper end of the front damper (18) passes is formed, and the annular rib (25A, 25B, 25C) is a damper housing structure for a front damper, wherein the thickness of the upper wall (21a) of the damper base (21) is larger. - 前記ダンパーベース（２１）の上壁（２１ａ）の上面には、前記環状リブ（２５Ａ，２５Ｂ，２５Ｃ）を前記環状壁（２４）に接続する倒れ抑制リブ（２６）が形成されることを特徴とする、請求項１に記載のフロントダンパーのダンパーハウジング構造。 On the upper surface of the upper wall (21a) of the damper base (21), a fall prevention rib (26) for connecting the annular rib (25A, 25B, 25C) to the annular wall (24) is formed. A damper housing structure for a front damper according to claim 1.
- 前記ダンパーベース（２１）の上壁（２１ａ）の上面には、直線状に延びて前記環状リブ（２５Ａ，２５Ｂ，２５Ｃ）により分断される第１上面変形抑制リブ（２７ａ，２７ｂ）と、直線状に延びて少なくとも一つが前記環状リブ（２５Ａ，２５Ｂ，２５Ｃ）に接線状に接続する第２上面変形抑制リブ（２８ａ，２８ｂ）とが形成されることを特徴とする、請求項１または請求項２に記載のフロントダンパーのダンパーハウジング構造。 On the upper surface of the upper wall (21a) of the damper base (21), a first upper surface deformation suppressing rib (27a, 27b) that extends linearly and is divided by the annular rib (25A, 25B, 25C), and a straight line A second upper surface deformation suppression rib (28a, 28b) extending at least one of which is connected tangentially to the annular rib (25A, 25B, 25C) is formed. Item 3. A damper housing structure for a front damper according to Item 2.
- 前記第１上面変形抑制リブ（２７ａ，２７ｂ）および前記第２上面変形抑制リブ（２８ａ，２８ｂ）のうちの少なくとも二つは、相互にＴ字状に交差することを特徴とする、請求項３に記載のフロントダンパーのダンパーハウジング構造。 The at least two of the first upper surface deformation suppressing ribs (27a, 27b) and the second upper surface deformation suppressing rib (28a, 28b) intersect each other in a T shape. The damper housing structure of the front damper as described in 2.
- 前記第２上面変形抑制リブ（２８ａ，２８ｂ）の厚さは前記ダンパーベース（２１）の上壁（２１ａ）の板厚よりも大きいことを特徴とする、請求項３または請求項４に記載のフロントダンパーのダンパーハウジング構造。 The thickness of the said 2nd upper surface deformation | transformation suppression rib (28a, 28b) is larger than the plate | board thickness of the upper wall (21a) of the said damper base (21), The Claim 3 or Claim 4 characterized by the above-mentioned. Front damper damper housing structure.
- 相互に隣接して平行に形成された複数の前記倒れ抑制リブ（２６）の端部が、車幅方向に直近の前記環状壁（２４）に接続し、あるいは前記ダンパーベース（２１）の上面に形成された車幅方向に直近の段部（２１ｆ）に達していることを特徴とする、請求項２～請求項５の何れか１項に記載のフロントダンパーのダンパーハウジング構造。 The ends of the plurality of fall-inhibiting ribs (26) formed in parallel and adjacent to each other are connected to the annular wall (24) closest to the vehicle width direction or on the upper surface of the damper base (21). The damper housing structure for a front damper according to any one of claims 2 to 5, wherein the damper housing structure reaches the step (21f) that is closest to the formed vehicle width direction.
- 前記ダンパーベース（２１）の外周には下向きに突出するフランジ部（２１ｃ）が形成され、前記ダンパーベース（２１）の外周の角部の下面には前記フランジ部（２１ｃ）に接続する開き抑制リブ（３０）が形成されることを特徴とする、請求項１～請求項６の何れか１項に記載のフロントダンパーのダンパーハウジング構造。 A flange portion (21c) protruding downward is formed on the outer periphery of the damper base (21), and an opening restraining rib connected to the flange portion (21c) is formed on the lower surface of the corner portion of the outer periphery of the damper base (21). The damper housing structure for a front damper according to any one of claims 1 to 6, wherein (30) is formed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201680082083.0A CN108698643B (en) | 2016-02-23 | 2016-02-23 | Shock absorber shell structure of front shock absorber |
| PCT/JP2016/055262 WO2017145267A1 (en) | 2016-02-23 | 2016-02-23 | Damper housing structure for front damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/055262 WO2017145267A1 (en) | 2016-02-23 | 2016-02-23 | Damper housing structure for front damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017145267A1 true WO2017145267A1 (en) | 2017-08-31 |
Family
ID=59685997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2016/055262 WO2017145267A1 (en) | 2016-02-23 | 2016-02-23 | Damper housing structure for front damper |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108698643B (en) |
| WO (1) | WO2017145267A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015054587A (en) * | 2013-09-11 | 2015-03-23 | トヨタ自動車株式会社 | Suspension tower plate and suspension tower |
| US20150314811A1 (en) * | 2012-12-21 | 2015-11-05 | Honda Motor Co., Ltd. | Vehicle body front structure for automobile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456517A (en) * | 1993-12-23 | 1995-10-10 | General Motors Corporation | Cast shock tower for a vehicle |
| JP4720428B2 (en) * | 2005-10-25 | 2011-07-13 | マツダ株式会社 | Front body structure of automobile |
| DE202009000455U1 (en) * | 2009-01-15 | 2009-03-12 | Acument Gmbh & Co. Ohg | Shock absorber strut console |
| DE112013003701T5 (en) * | 2012-07-27 | 2015-04-09 | Honda Motor Co., Ltd. | Subframe for vehicle |
| DE102014104838B4 (en) * | 2014-04-04 | 2023-01-26 | Thyssenkrupp Steel Europe Ag | strut dome |
| JP6070640B2 (en) * | 2014-06-11 | 2017-02-01 | トヨタ自動車株式会社 | Vehicle body structure |
| JP6020518B2 (en) * | 2014-06-20 | 2016-11-02 | トヨタ自動車株式会社 | Suspension tower and vehicle front structure |
-
2016
- 2016-02-23 WO PCT/JP2016/055262 patent/WO2017145267A1/en active Application Filing
- 2016-02-23 CN CN201680082083.0A patent/CN108698643B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150314811A1 (en) * | 2012-12-21 | 2015-11-05 | Honda Motor Co., Ltd. | Vehicle body front structure for automobile |
| JP2015054587A (en) * | 2013-09-11 | 2015-03-23 | トヨタ自動車株式会社 | Suspension tower plate and suspension tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108698643A (en) | 2018-10-23 |
| CN108698643B (en) | 2020-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5924331B2 (en) | Lower body structure | |
| JP5971215B2 (en) | Suspension tower plate and suspension tower | |
| US9469345B2 (en) | Suspension tower and vehicle front portion structure | |
| JP6390595B2 (en) | Rear body structure of the vehicle | |
| WO2018042737A1 (en) | Structure for rear part of body of vehicle | |
| CN107009832B (en) | Suspension tower structure of vehicle | |
| JP6332389B2 (en) | Lower body structure of the vehicle | |
| JP7103488B2 (en) | Rear structure of the car body | |
| JP5769081B2 (en) | Bulkhead structure for side members | |
| CN111483411B (en) | Cover member for vehicle | |
| JP6432578B2 (en) | Rear body structure of the vehicle | |
| WO2017145267A1 (en) | Damper housing structure for front damper | |
| JP5830452B2 (en) | Car body rear structure | |
| JP6327303B2 (en) | Lower body structure of the vehicle | |
| JP6573861B2 (en) | Door impact beam | |
| JP7107176B2 (en) | vehicle underbody structure | |
| JP7063174B2 (en) | Vehicle seat rail mounting structure | |
| JP5495808B2 (en) | Wheel disc for automobile | |
| JP6520569B2 (en) | Vehicle frame structure | |
| JP2009269502A (en) | Collision energy absorbing structure of vehicle body | |
| JP6603578B2 (en) | Suspension member reinforcement structure | |
| JP6320217B2 (en) | Body front structure | |
| JP7054652B2 (en) | Body rear floor structure | |
| KR102026813B1 (en) | Reinforcing structure of filler trim and floor joint for automobile | |
| JP7002442B2 (en) | Vehicle hood |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16891425 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16891425 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: JP |