JP2014040118A - Trunnion type suspension structure - Google Patents

Trunnion type suspension structure Download PDF

Info

Publication number
JP2014040118A
JP2014040118A JP2012182134A JP2012182134A JP2014040118A JP 2014040118 A JP2014040118 A JP 2014040118A JP 2012182134 A JP2012182134 A JP 2012182134A JP 2012182134 A JP2012182134 A JP 2012182134A JP 2014040118 A JP2014040118 A JP 2014040118A
Authority
JP
Japan
Prior art keywords
cross member
trunnion
attached
frame
gusset
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2012182134A
Other languages
Japanese (ja)
Other versions
JP6054096B2 (en
Inventor
Koji Matsumoto
浩司 松本
Yasuto Saito
康人 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hino Motors Ltd
Original Assignee
Hino Motors Ltd
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 Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP2012182134A priority Critical patent/JP6054096B2/en
Publication of JP2014040118A publication Critical patent/JP2014040118A/en
Application granted granted Critical
Publication of JP6054096B2 publication Critical patent/JP6054096B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To provide a trunnion type suspension structure which eliminates positional limitations on a point where a trunnion bracket is fastened by an upper gusset and thereby realizes effective force transmission.SOLUTION: A cutout recessed part 51c which may engage with an upper surface of a cross member 10 and places a reinforcement lateral plate part 51a in contact with the upper surface of the cross member 10 is formed at a reinforcement vertical plate part 51b which extends so as to be suspended from one end edge of the reinforcement lateral plate part 51a of an upper gusset 51 and is attached to an upper part of an inner surface of a web 5a in a frame 5. This structure allows the upper gusset 51 to be attached in a later process.

Description

本発明は、トラニオン式サスペンション構造に関するものである。   The present invention relates to a trunnion type suspension structure.

一般に、後輪二軸の大型トラック等の車両には、トラニオン式サスペンションと称されるタンデムアクスル専用のサスペンションが採用されている。   In general, a tandem axle-specific suspension called a trunnion-type suspension is employed in a vehicle such as a heavy truck with two rear wheels.

図４〜図９は従来のトラニオン式サスペンション構造の一例を示すものであって、車両の前後方向へ所要間隔をあけてタンデム配置された一対の車軸１，２の間でトラニオンシャフト３をトラニオンブラケット４によりフレーム５に固定し、該トラニオンシャフト３にリーフスプリング６の中央部を回動ベース７を介して回動自在に取り付け、該リーフスプリング６の両端部により前記前後の車軸１，２を支えると共に、これら各車軸１，２の前後方向位置を保持するためのアッパロッド８及びロアロッド９を備えた構造となっている。   4 to 9 show an example of a conventional trunnion type suspension structure, in which a trunnion shaft 3 is connected to a trunnion bracket between a pair of axles 1 and 2 arranged in tandem with a required interval in the longitudinal direction of the vehicle. The leaf spring 6 is fixed to the trunnion shaft 3 via a rotation base 7 so as to be pivotable, and the front and rear axles 1 and 2 are supported by both ends of the leaf spring 6. In addition, an upper rod 8 and a lower rod 9 for holding the front and rear positions of the axles 1 and 2 are provided.

ここで、前記トラニオンブラケット４は、左右のフレーム５の相互間にクロスメンバ１０が掛け渡されて補強されている位置に固定されるようにしてあり、該クロスメンバ１０の中央部の前後面と前記各車軸１，２の中央部上側との間がアッパロッド８によりそれぞれ連結され、前記トラニオンブラケット４の下端部の前後面と前記各車軸１，２の両端部下側との間がロアロッド９により連結されている。   Here, the trunnion bracket 4 is fixed at a position where the cross member 10 is stretched between the left and right frames 5 and is reinforced, and the trunnion bracket 4 The upper ends of the center portions of the axles 1 and 2 are connected by upper rods 8, and the front and rear surfaces of the lower ends of the trunnion brackets 4 and the lower sides of both ends of the axles 1 and 2 are connected by lower rods 9. Has been.

前記トラニオン式サスペンション構造では、前後の車軸１，２の上下動がリーフスプリング６により吸収され、前後方向の力はアッパロッド８及びロアロッド９を介してフレーム５に伝えられ、更に、車両の後輪が段差を乗り越える際には、リーフスプリング６がトラニオンシャフト３を中心に回動することで良好な段差乗り越しが実現されることになる。   In the trunnion type suspension structure, the vertical movement of the front and rear axles 1 and 2 is absorbed by the leaf spring 6, the front-rear direction force is transmitted to the frame 5 through the upper rod 8 and the lower rod 9, and the rear wheel of the vehicle When climbing over the step, the leaf spring 6 rotates about the trunnion shaft 3 so that a good step over the step is realized.

図中、１１はリーフスプリング６の中央部を回動ベース７上に装着するためのＵボルト、１２はクロスメンバ１０の中央部の前後面に設けられたアッパロッド８の取付部、１３は各車軸１，２の中央部上側に設けられたアッパロッド８の取付部、１４はトラニオンブラケット４の下端部の前後面に設けられたロアロッド９の取付部、１５は各車軸１，２の両端部下側に設けられたロアロッド９の取付部を示している。   In the figure, 11 is a U bolt for mounting the central portion of the leaf spring 6 on the rotation base 7, 12 is a mounting portion of the upper rod 8 provided on the front and rear surfaces of the central portion of the cross member 10, and 13 is each axle. 1 and 2 are attached to the upper portion of the upper rod 8, 14 is attached to the front and rear surfaces of the lower end of the trunnion bracket 4, and 15 is attached to the lower portion of each axle 1 and 2. The attachment part of the provided lower rod 9 is shown.

尚、前述の如きトラニオン式サスペンション構造と関連する一般的技術水準を示すものとしては、例えば、特許文献１がある。   For example, Patent Document 1 shows a general technical level related to the trunnion suspension structure as described above.

特開２０１０−５２５４０号公報JP 2010-52540 A

ところで、図４〜図９に示されるような従来のトラニオン式サスペンション構造では、前記フレーム５は、ウェブ５ａとフランジ５ｂとを有する溝形鋼からなり且つ該溝形鋼の溝側が互いに対向するよう車両幅方向へ所要間隔をあけて配設され、該左右のフレーム５をつなぐクロスメンバ１０の両幅端部下面と前記フレーム５下部との間にはロアガセット５０が取り付けられると共に、前記クロスメンバ１０の両幅端部上面と前記フレーム５上部との間にはアッパガセット５１が取り付けられ、前記フレーム５とクロスメンバ１０との交差部分の応力集中を分散し剛性を高めることが行われている。   By the way, in the conventional trunnion type suspension structure as shown in FIGS. 4 to 9, the frame 5 is made of channel steel having a web 5a and a flange 5b, and the channel sides of the channel steel are opposed to each other. A lower gusset 50 is attached between a lower surface of both width ends of the cross member 10 and the lower part of the frame 5 which are arranged at a required interval in the vehicle width direction and connect the left and right frames 5, and the cross member 10. Upper gussets 51 are attached between the upper surfaces of both width end portions and the upper portion of the frame 5 to disperse the stress concentration at the intersection between the frame 5 and the cross member 10 and to increase the rigidity.

尚、前記クロスメンバ１０は、図７に示される如く、ウェブ１０ａの上下にフランジ１０ｂを一体化した断面Ｉ型の部材で、下側のフランジ１０ｂは、図９に示される如く、上側のフランジ１０ｂより幅広で且つ前記フレーム５に近い側が更に幅広となっている。   As shown in FIG. 7, the cross member 10 is an I-shaped member in which a flange 10b is integrated on the top and bottom of a web 10a, and the lower flange 10b is an upper flange as shown in FIG. The side wider than 10b and close to the frame 5 is wider.

又、前記ロアガセット５０は、前記クロスメンバ１０の下面を覆うように取り付けられる補強横板部５０ａと、該補強横板部５０ａの一端縁から垂直に立ち上がるように延び且つ前記フレーム５のウェブ５ａ内面下部に取り付けられる補強縦板部５０ｂとを有している。   The lower gusset 50 includes a reinforcing horizontal plate portion 50a attached so as to cover the lower surface of the cross member 10, and extends so as to rise vertically from one end edge of the reinforcing horizontal plate portion 50a, and the inner surface of the web 5a of the frame 5 And a reinforcing vertical plate portion 50b attached to the lower portion.

更に又、前記アッパガセット５１は、前記クロスメンバ１０の上面を覆うように取り付けられる補強横板部５１ａと、該補強横板部５１ａの一端縁から垂下するように延び且つ前記フレーム５のウェブ５ａ内面上部に取り付けられる補強縦板部５１ｂとを有している。   Further, the upper gusset 51 is provided with a reinforcing horizontal plate portion 51a attached so as to cover the upper surface of the cross member 10, and extends so as to hang from one end edge of the reinforcing horizontal plate portion 51a, and the web 5a of the frame 5 And a reinforcing vertical plate portion 51b attached to the upper surface of the inner surface.

ここで、仮に、前記トラニオンブラケット４を左右のフレーム５の相互間にクロスメンバ１０が掛け渡されて補強されている位置に固定した後で、前記アッパガセット５１を、図７（ａ）及び図８（ａ）に示される状態からフレーム５及びクロスメンバ１０に取り付けようとしても、図７（ｂ）及び図８（ｂ）に示される如く、補強縦板部５１ｂの下端がクロスメンバ１０の上面に当たってしまい、フレーム５のフランジ５ｂが邪魔をしてアッパガセット５１をその取付位置まで移動させることができなくなる。   Here, suppose that the trunnion bracket 4 is fixed at a position where the cross member 10 is bridged between the left and right frames 5 and is reinforced, and then the upper gusset 51 is moved to the position shown in FIGS. Even if it is intended to be attached to the frame 5 and the cross member 10 from the state shown in FIG. 8A, the lower end of the reinforcing vertical plate portion 51b is the upper surface of the cross member 10 as shown in FIGS. 7B and 8B. The flange 5b of the frame 5 gets in the way, and the upper gusset 51 cannot be moved to its mounting position.

このため、前記アッパガセット５１は予めフレーム５及びクロスメンバ１０に取り付けておく必要がある。   For this reason, the upper gusset 51 needs to be attached to the frame 5 and the cross member 10 in advance.

この結果、図９に示される如く、前記トラニオンブラケット４（図６参照）をクロスメンバ１０に固定するためのボルト・ナット等の締結部材１６は、該締結部材１６を締め付ける工具（図示せず）がアッパガセット５１と干渉しないようにするために、該アッパガセット５１をよける位置に配置せざるを得なかった。   As a result, as shown in FIG. 9, a fastening member 16 such as a bolt and a nut for fixing the trunnion bracket 4 (see FIG. 6) to the cross member 10 is a tool (not shown) for fastening the fastening member 16. In order to prevent the upper gusset 51 from interfering with the upper gusset 51, the upper gusset 51 has to be disposed at a position to avoid it.

しかしながら、前述のように、前記トラニオンブラケット４の締結部材１６がアッパガセット５１をよける位置に配置されるということは、それだけクロスメンバ１０のウェブ１０ａ及びフレーム５から離れた位置にトラニオンブラケット４が締結されることを意味し、効率的な力の伝達を考慮した場合、トラニオンブラケット４の締結点はクロスメンバ１０のウェブ１０ａ及びフレーム５にできるだけ近づけることが望ましく、改善の余地が残されていた。   However, as described above, the fact that the fastening member 16 of the trunnion bracket 4 is disposed at a position away from the upper gusset 51 means that the trunnion bracket 4 is located at a position far from the web 10a and the frame 5 of the cross member 10. This means that the fastening point of the trunnion bracket 4 should be as close as possible to the web 10a and the frame 5 of the cross member 10, and there is still room for improvement. .

本発明は、上記従来の問題点に鑑みてなしたもので、アッパガセットによるトラニオンブラケットの締結点の位置的な制約をなくすことができ、効率的な力の伝達を実現し得るトラニオン式サスペンション構造を提供しようとするものである。   The present invention has been made in view of the above-described conventional problems, and can eliminate the positional restriction of the fastening point of the trunnion bracket by the upper gusset and can realize efficient force transmission. Is to provide.

本発明は、溝形鋼からなり且つ該溝形鋼の溝側が互いに対向するよう車両幅方向へ所要間隔をあけて配設されるフレーム間を連結するクロスメンバと、
該クロスメンバの両幅端部下面と前記フレーム下部との間に取り付けられるロアガセットと、
前記クロスメンバの両幅端部上面と前記フレーム上部との間に取り付けられるアッパガセットと、
前記クロスメンバの両幅端部下面側に前記ロアガセットを介して締結部材により取り付けられるトラニオンブラケットと、
前記トラニオンブラケットのボス部間に掛け渡すよう配設され且つ該ボス部から外方へ張り出す両端部にそれぞれリーフスプリングの中央部が回動ベースを介し回動自在に取り付けられるトラニオンシャフトと
を備えたトラニオン式サスペンション構造であって、
前記トラニオンブラケットの取り付け後に前記アッパガセットの取り付けを行うことにより、前記トラニオンブラケットの前記クロスメンバに対する締結点を該クロスメンバのウェブ及びフレームの近傍に設定し得るよう構成したことを特徴とするトラニオン式サスペンション構造にかかるものである。 The present invention includes a cross member that connects between frames that are made of channel steel and that are arranged at a required interval in the vehicle width direction so that the groove sides of the channel steel face each other.
A lower gusset attached between the lower surface of both width end portions of the cross member and the lower portion of the frame;
An upper gusset attached between the upper surface of both width end portions of the cross member and the upper portion of the frame;
A trunnion bracket attached to a lower surface side of both width end portions of the cross member by a fastening member via the lower gusset;
A trunnion shaft disposed so as to span between the boss portions of the trunnion bracket and having a central portion of a leaf spring rotatably attached to both ends projecting outward from the boss portion via a rotation base. Trunnion type suspension structure,
A trunnion type characterized in that by attaching the upper gusset after the trunnion bracket is attached, a fastening point of the trunnion bracket to the cross member can be set in the vicinity of the web and the frame of the cross member. It relates to the suspension structure.

前記トラニオン式サスペンション構造において、前記アッパガセットは、前記クロスメンバの上面を覆うように取り付けられる補強横板部と、該補強横板部の一端縁から垂下するように延び且つ前記フレームのウェブ内面上部に取り付けられる補強縦板部とを有し、
該補強縦板部に、前記クロスメンバの上面に係合可能で且つ該クロスメンバの上面に前記補強横板部を当接させる切欠凹部を形成し、
該切欠凹部を前記クロスメンバの上面に係合させ該クロスメンバの上面に前記補強横板部を当接させた状態でスライドさせることにより、前記補強縦板部を前記フレームのウェブ内面上部に当接させるようにすることが好ましい。 In the trunnion-type suspension structure, the upper gusset includes a reinforcing horizontal plate portion attached so as to cover an upper surface of the cross member, and extends so as to hang down from one end edge of the reinforcing horizontal plate portion, and an upper portion of the inner surface of the web of the frame And a reinforcing vertical plate portion attached to
Formed in the reinforcing vertical plate portion is a notch recess that is engageable with the upper surface of the cross member and that abuts the reinforcing horizontal plate portion on the upper surface of the cross member;
The notch recess is engaged with the upper surface of the cross member and is slid in a state where the reinforcing horizontal plate is in contact with the upper surface of the cross member, so that the reinforcing vertical plate is brought into contact with the upper surface of the web inner surface of the frame. It is preferable to make it contact.

本発明のトラニオン式サスペンション構造によれば、アッパガセットによるトラニオンブラケットの締結点の位置的な制約をなくすことができ、効率的な力の伝達を実現し得るという優れた効果を奏し得る。   According to the trunnion type suspension structure of the present invention, the positional restriction of the fastening point of the trunnion bracket by the upper gusset can be eliminated, and an excellent effect that efficient transmission of force can be realized can be achieved.

本発明のトラニオン式サスペンション構造の実施例を示す斜視図であって、（ａ）はアッパガセットをクロスメンバの上方に配置した状態を示す図、（ｂ）はアッパガセットの切欠凹部をクロスメンバの上面に係合させた状態を示す図、（ｃ）アッパガセットをスライドさせてその補強縦板部をフレームのウェブ内面上部に当接させた状態を示す図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the Example of the trunnion type suspension structure of this invention, (a) is a figure which shows the state which has arrange | positioned the upper gusset above a cross member, (b) is a notch recessed part of an upper gusset of a cross member. The figure which shows the state engaged with the upper surface, (c) It is a figure which shows the state which made the upper gusset slide and the reinforcement vertical board part contact | abutted on the web inner surface upper part of the flame | frame. 本発明のトラニオン式サスペンション構造の実施例におけるクロスメンバの幅端部を示す図であって、（ａ）はアッパガセットをクロスメンバの上方に配置した状態を示す図、（ｂ）はアッパガセットの切欠凹部をクロスメンバの上面に係合させた状態を示す図、（ｃ）アッパガセットをスライドさせてその補強縦板部をフレームのウェブ内面上部に当接させた状態を示す図である。It is a figure which shows the width | variety edge part of the cross member in the Example of the trunnion type suspension structure of this invention, Comprising: (a) is a figure which shows the state which has arrange | positioned the upper gusset above a cross member, (b) is a figure of an upper gusset. It is a figure which shows the state which engaged the notch recessed part with the upper surface of the cross member, (c) It is a figure which shows the state which made the upper gusset slide and the reinforcing vertical board part contact | abutted to the web inner surface upper part of the flame | frame. 本発明のトラニオン式サスペンション構造の実施例を示す平面図である。It is a top view which shows the Example of the trunnion type suspension structure of this invention. 従来のトラニオン式サスペンション構造の一例を示す側面図である。It is a side view which shows an example of the conventional trunnion type suspension structure. 従来のトラニオン式サスペンション構造の一例を示す斜視図である。It is a perspective view which shows an example of the conventional trunnion type suspension structure. 従来のトラニオン式サスペンション構造の一例を示す要部分解斜視図である。It is a principal part disassembled perspective view which shows an example of the conventional trunnion type suspension structure. 従来のトラニオン式サスペンション構造の一例におけるアッパガセットを示す斜視図であって、（ａ）はアッパガセットをクロスメンバの上方に配置した状態を示す図、（ｂ）はアッパガセットの取り付けが行えなくなる状態を示す図である。It is a perspective view which shows the upper gusset in an example of the conventional trunnion type suspension structure, (a) is a figure which shows the state which has arrange | positioned the upper gusset above a cross member, (b) is a state which cannot attach an upper gusset FIG. 従来のトラニオン式サスペンション構造の一例におけるクロスメンバの幅端部を示す図であって、（ａ）はアッパガセットをクロスメンバの上方に配置した状態を示す図、（ｂ）はアッパガセットの取り付けが行えなくなる状態を示す図である。It is a figure which shows the width | variety edge part of the cross member in an example of the conventional trunnion type suspension structure, (a) is a figure which shows the state which has arrange | positioned the upper gusset above the cross member, (b) is the attachment of an upper gusset. It is a figure which shows the state which cannot be performed. 従来のトラニオン式サスペンション構造の一例を示す平面図である。It is a top view which shows an example of the conventional trunnion type suspension structure.

以下、本発明の実施の形態を添付図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１〜図３は本発明のトラニオン式サスペンション構造の実施例であって、図中、図４〜図９と同一の符号を付した部分は同一物を表わしており、基本的な構成は図４〜図９に示す従来のものと同様であるが、本実施例の特徴とするところは、図１〜図３に示す如く、トラニオンブラケット４の取り付け後に前記アッパガセット５１の取り付けを行うことにより、前記トラニオンブラケット４の前記クロスメンバ１０に対する締結点（締結部材１６の位置）を該クロスメンバ１０のウェブ１０ａ及びフレーム５の近傍に設定し得るよう構成した点にある。   1 to 3 show an embodiment of the trunnion type suspension structure of the present invention. In the figure, the same reference numerals as those in FIGS. 4 to 9 denote the same components, and the basic configuration is shown in FIG. Although similar to the conventional one shown in FIGS. 4 to 9, the feature of this embodiment is that the upper gusset 51 is attached after the trunnion bracket 4 is attached as shown in FIGS. The fastening point of the trunnion bracket 4 with respect to the cross member 10 (position of the fastening member 16) is configured to be set in the vicinity of the web 10a and the frame 5 of the cross member 10.

本実施例の場合、前記アッパガセット５１の補強横板部５１ａの一端縁から垂下するように延び且つ前記フレーム５のウェブ５ａ内面上部に取り付けられる補強縦板部５１ｂに、前記クロスメンバ１０の上面に係合可能で且つ該クロスメンバ１０の上面に前記補強横板部５１ａを当接させる切欠凹部５１ｃを形成し、これにより、前記アッパガセット５１の後付けが行えるようにしてある。   In the case of the present embodiment, the upper surface of the cross member 10 is attached to the reinforcing vertical plate portion 51b that extends from one end edge of the reinforcing horizontal plate portion 51a of the upper gusset 51 and is attached to the upper inner surface of the web 5a of the frame 5. A notch recess 51c is formed on the upper surface of the cross member 10 so as to contact the reinforcing lateral plate portion 51a so that the upper gusset 51 can be retrofitted.

尚、図１に示す例では、前記切欠凹部５１ｃは、補強横板部５１ａの部分まで切れ込んだ形となっているが、必ずしもこのように補強横板部５１ａの部分まで切れ込んだ形とせずに、補強縦板部５１ｂのみに形成しても良く、要は、前記切欠凹部５１ｃを前記クロスメンバ１０の上面に係合させた際に、図２（ｂ）に示す如く、該クロスメンバ１０のフランジ１０ｂの上面に前記補強横板部５１ａを当接させることが可能となるようにすれば良い。   In the example shown in FIG. 1, the notch recess 51c is cut to the reinforcing horizontal plate portion 51a, but is not necessarily cut to the reinforcing horizontal plate portion 51a. In addition, it may be formed only on the reinforcing vertical plate portion 51b. In short, when the notch recess 51c is engaged with the upper surface of the cross member 10, as shown in FIG. What is necessary is just to make it possible to make the said reinforcement horizontal board part 51a contact | abut on the upper surface of the flange 10b.

次に、上記実施例の作用を説明する。   Next, the operation of the above embodiment will be described.

前記アッパガセット５１を、図１（ａ）及び図２（ａ）に示す状態からフレーム５及びクロスメンバ１０に取り付ける際には、図１（ｂ）及び図２（ｂ）に示す如く、補強縦板部５１ｂの切欠凹部５１ｃをクロスメンバ１０の上面に係合させ、該クロスメンバ１０のフランジ１０ｂの上面に前記補強横板部５１ａを当接させた状態でスライドさせることにより、前記補強縦板部５１ｂを、図１（ｃ）及び図２（ｃ）に示す如く、前記フレーム５のウェブ５ａ内面上部に当接させることが可能となる。   When the upper gusset 51 is attached to the frame 5 and the cross member 10 from the state shown in FIGS. 1 (a) and 2 (a), as shown in FIG. 1 (b) and FIG. The notch recess 51c of the plate portion 51b is engaged with the upper surface of the cross member 10, and the reinforcing vertical plate is slid with the reinforcing horizontal plate portion 51a in contact with the upper surface of the flange 10b of the cross member 10. As shown in FIGS. 1C and 2C, the portion 51b can be brought into contact with the upper part of the inner surface of the web 5a of the frame 5.

これにより、前記トラニオンブラケット４を左右のフレーム５の相互間にクロスメンバ１０が掛け渡されて補強されている位置に固定した後に、前記アッパガセット５１をフレーム５及びクロスメンバ１０に取り付けることが可能となるため、該アッパガセット５１を予めフレーム５及びクロスメンバ１０に取り付けておく必要がなくなる。   Thus, after the trunnion bracket 4 is fixed at a position where the cross member 10 is stretched between the left and right frames 5 and reinforced, the upper gusset 51 can be attached to the frame 5 and the cross member 10. Therefore, it is not necessary to attach the upper gusset 51 to the frame 5 and the cross member 10 in advance.

この結果、図３に示す如く、前記トラニオンブラケット４（図６参照）をクロスメンバ１０に固定するためのボルト・ナット等の締結部材１６は、該締結部材１６を締め付ける工具（図示せず）がアッパガセット５１と干渉しないようにすることを全く意識しなくて済むため、該アッパガセット５１をよける位置に配置する必要がなくなり、効率的な力の伝達を考慮して、トラニオンブラケット４の締結点をクロスメンバ１０のウェブ１０ａ及びフレーム５に近づけることが可能となる。   As a result, as shown in FIG. 3, a fastening member 16 such as a bolt and a nut for fixing the trunnion bracket 4 (see FIG. 6) to the cross member 10 is a tool (not shown) for fastening the fastening member 16. Since there is no need to be conscious of not interfering with the upper gusset 51, it is not necessary to place the upper gusset 51 in a position to avoid the upper gusset 51, and the trunnion bracket 4 is fastened in consideration of efficient force transmission. The point can be brought close to the web 10 a and the frame 5 of the cross member 10.

こうして、アッパガセット５１によるトラニオンブラケット４の締結点の位置的な制約をなくすことができ、効率的な力の伝達を実現し得る。   In this way, the positional restriction of the fastening point of the trunnion bracket 4 by the upper gusset 51 can be eliminated, and efficient transmission of force can be realized.

尚、本発明のトラニオン式サスペンション構造は、上述の実施例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。   The trunnion suspension structure of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

３ トラニオンシャフト
４ トラニオンブラケット
５ フレーム
５ａ ウェブ
６ リーフスプリング
７ 回動ベース
１０ クロスメンバ
１０ａ ウェブ
１６ 締結部材
５０ ロアガセット
５１ アッパガセット
５１ａ 補強横板部
５１ｂ 補強縦板部
５１ｃ 切欠凹部 3 trunnion shaft 4 trunnion bracket 5 frame 5a web 6 leaf spring 7 rotating base 10 cross member 10a web 16 fastening member 50 lower gusset 51 upper gusset 51a reinforcing horizontal plate portion 51b reinforcing vertical plate portion 51c notch recess

Claims (2)

溝形鋼からなり且つ該溝形鋼の溝側が互いに対向するよう車両幅方向へ所要間隔をあけて配設されるフレーム間を連結するクロスメンバと、
該クロスメンバの両幅端部下面と前記フレーム下部との間に取り付けられるロアガセットと、
前記クロスメンバの両幅端部上面と前記フレーム上部との間に取り付けられるアッパガセットと、
前記クロスメンバの両幅端部下面側に前記ロアガセットを介して締結部材により取り付けられるトラニオンブラケットと、
前記トラニオンブラケットのボス部間に掛け渡すよう配設され且つ該ボス部から外方へ張り出す両端部にそれぞれリーフスプリングの中央部が回動ベースを介し回動自在に取り付けられるトラニオンシャフトと
を備えたトラニオン式サスペンション構造であって、
前記トラニオンブラケットの取り付け後に前記アッパガセットの取り付けを行うことにより、前記トラニオンブラケットの前記クロスメンバに対する締結点を該クロスメンバのウェブ及びフレームの近傍に設定し得るよう構成したことを特徴とするトラニオン式サスペンション構造。 A cross member made of channel steel and connecting between frames arranged at a required interval in the vehicle width direction so that the groove sides of the channel steel face each other;
A lower gusset attached between the lower surface of both width end portions of the cross member and the lower portion of the frame;
An upper gusset attached between the upper surface of both width end portions of the cross member and the upper portion of the frame;
A trunnion bracket attached to a lower surface side of both width end portions of the cross member by a fastening member via the lower gusset;
A trunnion shaft disposed so as to span between the boss portions of the trunnion bracket and having a central portion of a leaf spring rotatably attached to both ends projecting outward from the boss portion via a rotation base. Trunnion type suspension structure,
A trunnion type characterized in that by attaching the upper gusset after the trunnion bracket is attached, a fastening point of the trunnion bracket to the cross member can be set in the vicinity of the web and the frame of the cross member. Suspension structure. 前記アッパガセットは、前記クロスメンバの上面を覆うように取り付けられる補強横板部と、該補強横板部の一端縁から垂下するように延び且つ前記フレームのウェブ内面上部に取り付けられる補強縦板部とを有し、
該補強縦板部に、前記クロスメンバの上面に係合可能で且つ該クロスメンバの上面に前記補強横板部を当接させる切欠凹部を形成し、
該切欠凹部を前記クロスメンバの上面に係合させ該クロスメンバの上面に前記補強横板部を当接させた状態でスライドさせることにより、前記補強縦板部を前記フレームのウェブ内面上部に当接させるようにした請求項１記載のトラニオン式サスペンション構造。 The upper gusset includes a reinforcing horizontal plate portion that is attached so as to cover the upper surface of the cross member, and a reinforcing vertical plate portion that extends so as to hang from one end edge of the reinforcing horizontal plate portion and is attached to an upper portion of the inner surface of the web of the frame. And
Formed in the reinforcing vertical plate portion is a notch recess that is engageable with the upper surface of the cross member and that abuts the reinforcing horizontal plate portion on the upper surface of the cross member;
The notch recess is engaged with the upper surface of the cross member and is slid in a state where the reinforcing horizontal plate is in contact with the upper surface of the cross member, so that the reinforcing vertical plate is brought into contact with the upper surface of the web inner surface of the frame. The trunnion type suspension structure according to claim 1, wherein the suspension structure is in contact with each other.
JP2012182134A 2012-08-21 2012-08-21 Trunnion suspension structure Active JP6054096B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012182134A JP6054096B2 (en) 2012-08-21 2012-08-21 Trunnion suspension structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012182134A JP6054096B2 (en) 2012-08-21 2012-08-21 Trunnion suspension structure

Publications (2)

Publication Number Publication Date
JP2014040118A true JP2014040118A (en) 2014-03-06
JP6054096B2 JP6054096B2 (en) 2016-12-27

Family

ID=50392789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012182134A Active JP6054096B2 (en) 2012-08-21 2012-08-21 Trunnion suspension structure

Country Status (1)

Country Link
JP (1) JP6054096B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017043481A1 (en) * 2015-09-10 2017-03-16 いすゞ自動車株式会社 Chassis frame structure
JP2017124693A (en) * 2016-01-13 2017-07-20 日野自動車株式会社 V-rod bracket and assembling method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078521A (en) * 1934-02-15 1937-04-27 Timken Axle Co Detroit Suspension for multiwheelers
JPH02151579A (en) * 1988-11-30 1990-06-11 Mitsubishi Motors Corp Rear wheel suspension spring mounting device for truck
JP2003252235A (en) * 2002-03-05 2003-09-10 Isuzu Motors Ltd Connection structure of side member to cross member

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2078521A (en) * 1934-02-15 1937-04-27 Timken Axle Co Detroit Suspension for multiwheelers
JPH02151579A (en) * 1988-11-30 1990-06-11 Mitsubishi Motors Corp Rear wheel suspension spring mounting device for truck
JP2003252235A (en) * 2002-03-05 2003-09-10 Isuzu Motors Ltd Connection structure of side member to cross member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017043481A1 (en) * 2015-09-10 2017-03-16 いすゞ自動車株式会社 Chassis frame structure
JP2017124693A (en) * 2016-01-13 2017-07-20 日野自動車株式会社 V-rod bracket and assembling method thereof

Also Published As

Publication number Publication date
JP6054096B2 (en) 2016-12-27

Similar Documents

Publication Publication Date Title
JP5867027B2 (en) Suspension frame peripheral structure
US8342565B2 (en) Cross member-integrated trunnion bracket
US9493207B2 (en) Motorcycle
JP2010042798A (en) Lower arm assembly for suspension device
JP2014118093A (en) Front cross member
JP6054096B2 (en) Trunnion suspension structure
JP5872962B2 (en) Auto body front structure
JP6130146B2 (en) Trunnion suspension structure
JP5373341B2 (en) Cross member integrated trunnion bracket reinforcement structure
JP2012086642A (en) Rear suspension device
JP5725990B2 (en) Reach forklift and suspension mechanism
JP2014019363A (en) Air spring installing portion structure
JP5822130B2 (en) Suspension frame peripheral structure
JP2013112212A (en) Peripheral structure of suspension frame
JP5165501B2 (en) Trunnion suspension assembly method
CN208648653U (en) A kind of quick-replaceable carrying wheel construction of overturning
KR20120054312A (en) Sub frame of suspension system for vehicle
CN203211388U (en) Automobile vice frame assembly
JP2005199842A (en) Frame structure for vehicle
JP2013107516A (en) Stepped outrigger structure
CN205524684U (en) Three -wheeled scooter rear wheel is from balance mechanism
JP5373340B2 (en) Cross member integrated trunnion bracket
JP2013241089A (en) Vehicle front body structure
JPH0577765A (en) Vehicle body structure
JP3224173U (en) Zero shear force cross shaft for motorcycle

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150703

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160407

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160412

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160602

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20161122

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20161130

R150 Certificate of patent or registration of utility model

Ref document number: 6054096

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250