WO2017145267A1 - Structure de logement d'amortisseur pour amortisseur avant - Google Patents

Structure de logement d'amortisseur pour amortisseur avant Download PDF

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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
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WO
WIPO (PCT)
Prior art keywords
damper
rib
annular
base
wall
Prior art date
Application number
PCT/JP2016/055262
Other languages
English (en)
Japanese (ja)
Inventor
昇平 松山
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2016/055262 priority Critical patent/WO2017145267A1/fr
Priority to CN201680082083.0A priority patent/CN108698643B/zh
Publication of WO2017145267A1 publication Critical patent/WO2017145267A1/fr

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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.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

L'invention concerne une surface supérieure de la paroi supérieure (21a) d'une base d'amortisseur (21) qui comporte : une paroi annulaire (24) entourant une ouverture (21d) dans laquelle l'extrémité supérieure d'un amortisseur avant (18) est montée ; des nervures annulaires (25A, 25B, 25C) entourant une pluralité de trous de boulon (21e) à travers lesquels s'étendent des boulons (22) pour fixer l'extrémité supérieure de l'amortisseur avant (18) à des positions autour de la paroi annulaire (24). Ladite configuration peut non seulement assurer une consolidation autour des trous de boulon (21e) dans la paroi supérieure (21a) de la base d'amortisseur (21) au moyen des nervures annulaires (25A, 25B, 25C), mais peut également, même si l'élément de direction de largeur de véhicule d'une charge appliquée depuis l'amortisseur avant (18) est transmise depuis les boulons (22) aux nervures annulaires (25A, 25B, 25C) à travers les trous de boulon (21e), supporter efficacement l'élément de direction de largeur de véhicule de la charge et empêcher la flexion des nervures annulaires (25A, 25B, 25C), étant donné que l'épaisseur des nervures annulaires (25A, 25B, 25C) est supérieure à l'épaisseur de plaque de la paroi supérieure (21a) de la base d'amortisseur (21).
PCT/JP2016/055262 2016-02-23 2016-02-23 Structure de logement d'amortisseur pour amortisseur avant WO2017145267A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/055262 WO2017145267A1 (fr) 2016-02-23 2016-02-23 Structure de logement d'amortisseur pour amortisseur avant
CN201680082083.0A CN108698643B (zh) 2016-02-23 2016-02-23 前减振器的减振器壳体结构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/055262 WO2017145267A1 (fr) 2016-02-23 2016-02-23 Structure de logement d'amortisseur pour amortisseur avant

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WO2017145267A1 true WO2017145267A1 (fr) 2017-08-31

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015054587A (ja) * 2013-09-11 2015-03-23 トヨタ自動車株式会社 サスペンションタワープレート及びサスペンションタワー
US20150314811A1 (en) * 2012-12-21 2015-11-05 Honda Motor Co., Ltd. Vehicle body front structure for automobile

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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 (ja) * 2005-10-25 2011-07-13 マツダ株式会社 自動車の前部車体構造
DE202009000455U1 (de) * 2009-01-15 2009-03-12 Acument Gmbh & Co. Ohg Dämpferbeinkonsole
US9216775B2 (en) * 2012-07-27 2015-12-22 Honda Motor Co., Ltd. Subframe for vehicle
DE102014104838B4 (de) * 2014-04-04 2023-01-26 Thyssenkrupp Steel Europe Ag Federbeindom
JP6070640B2 (ja) * 2014-06-11 2017-02-01 トヨタ自動車株式会社 車両の車体構造
JP6020518B2 (ja) * 2014-06-20 2016-11-02 トヨタ自動車株式会社 サスペンションタワー及び車両前部構造

Patent Citations (2)

* Cited by examiner, † Cited by third party
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 (ja) * 2013-09-11 2015-03-23 トヨタ自動車株式会社 サスペンションタワープレート及びサスペンションタワー

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CN108698643B (zh) 2020-11-17
CN108698643A (zh) 2018-10-23

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