JP2007253887A

JP2007253887A - Frame joint

Info

Publication number: JP2007253887A
Application number: JP2006083580A
Authority: JP
Inventors: Yoshihiro Takeda; 嘉裕武田; Hisanao Maruyama; 久直丸山
Original assignee: Press Kogyo Co Ltd
Current assignee: Press Kogyo Co Ltd
Priority date: 2006-03-24
Filing date: 2006-03-24
Publication date: 2007-10-04

Abstract

<P>PROBLEM TO BE SOLVED: To provide frame joints capable of working one frame by one kind of a die and one kind of a tool by setting the die and the tool of a right-to-left common type for forming right and left side members, reducing the initial investment for the die and the tool considerably more than a conventional one, and reducing the manufacturing cost. <P>SOLUTION: The frame joints are splittable joints 6, 7, 8, 9 having parts 4, 5 changing in the vehicle width direction and/or the height direction provided on side members 3, 3' of the frame 1 to which the right and left side members 3, 3' are connected by a plurality of cross members 2 in a predetermined width. The joints 6, 7, 8, 9 are formed rotation-symmetric in the longitudinal direction on the right and left sides. Right and left side members are formed with one kind of the die and one kind of the tool for one frame, the initial investment of the die and the tool can be reduced considerably more than the conventional one, and the manufacturing cost including the management cost of the die and the tool can also be reduced. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車枠、殊に自動車の車枠の継ぎ手に関する。 The present invention relates to a vehicle frame, and more particularly to a vehicle frame connector.

自動車の車枠、例えばトラック用の車枠は、近年次のように構成されることが多い。即ち、前記車枠は前部の車枠内にエンジン、トランスミッションを、前部上方にキャブを各搭載し、また前、後部下方に懸架装置、前車軸、後車軸を配するため、更に最低地上高、車両高さ、車幅等による制限を考慮して図１、図１０に示すような形状を採っている。 In recent years, a car frame of an automobile, for example, a truck frame is often configured as follows. That is, the vehicle frame is equipped with an engine and transmission in the front frame, and a cab above the front part, and a suspension device, a front axle and a rear axle are arranged below the front and rear parts. In consideration of restrictions due to vehicle height, vehicle width, etc., the shapes shown in FIGS. 1 and 10 are adopted.

従って、図１０に示すような従来の車枠１における、クロスメンバ２により連結された左右のサイドメンバ３、３’は互いに勝手違いの形状を成し、このため通常左右のサイドメンバ３、３’を成形するための型、治工具は左右専用となり、１車枠に２種の型、治工具が必要でその投資額も莫大となる。 Therefore, the left and right side members 3 and 3 'connected by the cross member 2 in the conventional vehicle frame 1 as shown in FIG. The molds and jigs for molding are made exclusively for left and right, and two types of molds and jigs are required for one vehicle frame, and the investment amount is enormous.

上記投資額を減少させるため、サイドメンバ３、３’について形状の変化を含む部分と変化しない部分とに分割し、形状の変化しない部分については、前記型、治工具を左右共通とすることも考えられている。 In order to reduce the amount of investment, the side members 3 and 3 ′ may be divided into a portion including a change in shape and a portion not changing, and the die and jig may be made common to the left and right portions of the portion where the shape does not change. It is considered.

しかしながらこの場合には、型、治工具の初期投資の低減効果が少ない上、分割したサイドメンバ３、３’の組立て費用が増加し、このためコストの低減額は僅かとなり、償却費の比率の少ない量産車型の場合には逆にコストが増加することもある。
特開平０９−２２１０６３号公報 However, in this case, the effect of reducing the initial investment of the mold and the tool is small, and the assembling cost of the divided side members 3 and 3 ′ is increased. Therefore, the cost reduction is small, and the ratio of the depreciation cost is reduced. In the case of a small number of mass-produced vehicles, the cost may increase.
JP 09-2221063 A

本発明が解決しようとする課題は、左右のサイドメンバを成形するための型、治工具を左右共通として１車枠に１種の型、治工具で加工を可能にし、型、治工具の初期投資を従来に比べて遥かに低減し得、また製造コストをも低減し得る車枠の継ぎ手を提供することにある。 The problem to be solved by the present invention is that the molds and jigs for forming the left and right side members are common to the left and right, and one type of mold and jigs can be processed in one vehicle frame. It is an object of the present invention to provide a vehicle frame joint that can be greatly reduced in comparison with the prior art and that can also reduce manufacturing costs.

前記課題を解決するための本発明は、左右のサイドメンバを複数のクロスメンバにより所定幅に連結してなる車枠の前記サイドメンバに設けられた、車幅方向及び／又は高さ方向に変化する部分を備える分割可能な継ぎ手であって、該継ぎ手が左右において前後方向の回転対称に形成されたことを特徴とする車枠の継ぎ手である。 The present invention for solving the above-mentioned problems changes in the vehicle width direction and / or the height direction provided on the side member of the vehicle frame formed by connecting the left and right side members to a predetermined width by a plurality of cross members. A split joint having a portion, wherein the joint is formed to be rotationally symmetrical in the front-rear direction on the left and right.

本発明の車枠の継ぎ手は、左右のサイドメンバを複数のクロスメンバにより所定幅に連結してなる車枠の前記サイドメンバに設けられた、車幅方向及び／又は高さ方向に変化する部分を備える分割可能な継ぎ手であって、該継ぎ手が左右において前後方向の回転対称に形成されているので、左右のサイドメンバを成形するために１車枠に１種の型、治工具で加工を可能にし、型、治工具の初期投資を従来に比べて遥かに低減し得、また型、治工具の管理コストを含め製造コストをも低減し得る。 The vehicle frame joint of the present invention includes a portion that is provided on the side member of the vehicle frame that is formed by connecting left and right side members to a predetermined width by a plurality of cross members and that changes in the vehicle width direction and / or the height direction. It is a splittable joint, and the joint is formed to be rotationally symmetrical in the front-rear direction on the left and right, so that it can be processed with one type of mold and jig in one car frame to form the left and right side members, The initial investment of molds and jigs can be greatly reduced as compared with the prior art, and the manufacturing costs including the management costs of molds and jigs can be reduced.

本発明の好ましい実施の形態を図１乃至図１０により説明すると、本発明車枠の継ぎ手は、左右のサイドメンバ３、３’を複数のクロスメンバ２により所定幅に連結してなる車枠１の前記サイドメンバ３、３’に設けられた、車幅方向及び／又は高さ方向に変化する部分４、５を備える分割可能な継ぎ手６、７、８、９であって、該継ぎ手６、７、８、９が左右において前後方向の回転対称に形成されたものである。 A preferred embodiment of the present invention will be described with reference to FIGS. 1 to 10. A joint of a vehicle frame of the present invention is a vehicle frame 1 in which left and right side members 3, 3 ′ are connected to a predetermined width by a plurality of cross members 2. Split joints 6, 7, 8, 9 provided on the side members 3, 3 ′ having portions 4, 5 that change in the vehicle width direction and / or height direction, the joints 6, 7, 8 and 9 are formed to be rotationally symmetrical in the front-rear direction on the left and right.

図に示す実施例について更に詳細に説明すると、車幅方向及び高さ方向に変化する部分４、５を備える分割可能な継ぎ手６、７、８は図２、図３、図４及び図５に示される如き継ぎ手で、図１のサイドメンバ３、３’におけるＡ部にいづれかひとつが使用される一方、高さ方向のみに変化する部分５を備える分割可能な継ぎ手９は図６に示される如き継ぎ手で、図１のサイドメンバ３、３’におけるＢ部及びＢ’部に使用される。 The embodiment shown in the drawing will be described in more detail. The splittable joints 6, 7 and 8 having portions 4 and 5 that change in the vehicle width direction and the height direction are shown in FIG. 2, FIG. 3, FIG. In the joint as shown, one of the parts A in the side members 3, 3 ′ of FIG. 1 is used, while the splittable joint 9 with the portion 5 that changes only in the height direction is as shown in FIG. It is a joint and is used for the B part and B 'part in the side members 3, 3' of FIG.

即ち、上記Ａ部は図１に示すように、車幅方向の変化する部分の長さより高さ方向の変化する部分の長さが小さい場合には、これに適合する図２の６で示す継ぎ手が使用され、上記Ｂ部及びＢ’部は、車幅方向の変化量が零で高さ方向の変化量のみ存在する故、これに適合する図６の９で示す継ぎ手が使用される。 That is, as shown in FIG. 1, when the length of the portion that changes in the height direction is smaller than the length of the portion that changes in the vehicle width direction as shown in FIG. Since the change amount in the vehicle width direction is zero and only the change amount in the height direction exists, the joint shown by 9 in FIG. 6 is used.

なお、上記Ａ部が車幅方向の変化する部分の長さより高さ方向の変化する部分の長さが大きい場合には、これに適合する図４の７で示す継ぎ手が使用されるが、車幅方向の変化する部分の長さと高さ方向の変化する部分の長さが等しい場合には、これに適合する図５の８で示す継ぎ手を使用する。 In addition, when the length of the portion where the height portion changes in the height direction is larger than the length of the portion where the width direction changes in the vehicle A, the fitting shown in FIG. When the length of the changing portion in the width direction is equal to the length of the changing portion in the height direction, a fitting indicated by 8 in FIG. 5 is used.

前記継ぎ手６は図２に示すように、車幅方向変化部位６ａ及び高さ方向変化部位６ｂの前後に、継ぎ手９又は継ぎ手以外のサイドメンバ３、３’部分に接続するための、それぞれの前後の長さが等しい寸法ｃ−１及びｄ−１を有する接続部６ｃ、６ｄが形成されており、該接続部６ｃ、６ｄからの車幅方向及び高さ方向への屈曲は、継ぎ手６の前後において等角度に且つ互いに反対方向に行われている。 As shown in FIG. 2, the joint 6 is connected to the joint 9 or the side members 3, 3 ′ other than the joint at the front and rear of the vehicle width direction changing portion 6 a and the height direction changing portion 6 b. The connecting portions 6c and 6d having the same dimensions c-1 and d-1 are formed, and the connecting portions 6c and 6d are bent in the vehicle width direction and the height direction before and after the joint 6. At equal angles and in opposite directions.

前記継ぎ手７にも図４に示すように、車幅方向変化部位７ａ及び高さ方向変化部位７ｂの前後に、継ぎ手９又は継ぎ手以外のサイドメンバ３、３’部分に接続するための、それぞれの前後の長さが等しい寸法ｃ−２及びｄ−２を有する接続部７ｃ、７ｄが形成されており、該接続部７ｃ、７ｄからの車幅方向及び高さ方向への屈曲は、継ぎ手７の前後において等角度に且つ互いに反対方向に行われている。 As shown in FIG. 4, the joint 7 is also connected to the joint 9 or the side members 3 and 3 ′ other than the joint before and after the vehicle width direction changing portion 7a and the height direction changing portion 7b. Connection portions 7c and 7d having dimensions c-2 and d-2 having equal front and rear lengths are formed, and bending in the vehicle width direction and height direction from the connection portions 7c and 7d It is performed at equal angles in the front and rear directions and in opposite directions.

更に、前記継ぎ手８にも図５に示すように、車幅方向変化部位８ａ及び高さ方向変化部位８ｂの前後に、継ぎ手９又は継ぎ手以外のサイドメンバ３、３’部分に接続するための、それぞれの前後の長さが等しい寸法ｃ−３を有する接続部８ｃ、８ｄが形成されており、該接続部８ｃ、８ｄからの車幅方向及び高さ方向への屈曲は、継ぎ手８の前後において等角度に且つ互いに反対方向に行われている。 Further, as shown in FIG. 5, the joint 8 is also connected to the side member 3, 3 ′ portion other than the joint 9 or the joint before and after the vehicle width direction changing portion 8a and the height direction changing portion 8b. Connection portions 8c and 8d having the same length c-3 in the front and rear directions are formed, and the bending in the vehicle width direction and the height direction from the connection portions 8c and 8d is performed before and after the joint 8. It is done at equal angles and in opposite directions.

更に、前記継ぎ手９にも図６に示すように、高さ方向変化部位９ｂの前後に、継ぎ手６、７、８又は継ぎ手以外のサイドメンバ３、３’部分に接続するための、前後の長さが等しい寸法ｄ−３を有する接続部９ｄが形成されており、該接続部９ｄからの高さ方向への屈曲は、継ぎ手９の前後において等角度に且つ互いに反対方向に行われている。 Further, as shown in FIG. 6, the joint 9 also has a front and rear length for connecting to the joints 6, 7, 8 or the side members 3, 3 ′ other than the joint before and after the height direction changing portion 9 b. A connecting portion 9d having the same dimension d-3 is formed, and bending in the height direction from the connecting portion 9d is performed at an equal angle before and after the joint 9 and in opposite directions.

前記継ぎ手６、７、８、９及び継ぎ手以外のサイドメンバ３、３’部分の断面は、図８、図９に示す同形同寸法のコ字材を向かい合わせ、上下にずらせて若干重ねて溶接したもののほか、図７に示す八角形のもの、或いは図８に示す同形同寸法のコ字材を向かい合わせて突合せ溶接したものなどが考えられる。 The cross-sections of the joints 6, 7, 8, 9 and the side members 3, 3 ′ other than the joints are slightly overlapped with the same shape and the same U-shaped members shown in FIGS. In addition to the welded one, an octagonal one shown in FIG. 7 or a U-shaped member having the same shape and the same dimensions shown in FIG.

本発明車枠の継ぎ手６、７、８、９は前述のように構成されているので、結局これらの継ぎ手たとえば６の右側のものを、図３の矢印のように継ぎ手６の前後方向に１８０度回転すれば、勝手違いとなって図３の左側のものとなる。 Since the joints 6, 7, 8, 9 of the vehicle frame of the present invention are configured as described above, these joints, for example, the one on the right side of the joint 6 are 180 degrees in the front-rear direction of the joint 6 as shown by the arrows in FIG. If it rotates, it becomes a mistake and it becomes the thing of the left side of FIG.

従って、１種の型、治工具によって継ぎ手６、７、８、９を製作しておけば、サイドメンバ３、３’の右、左いずれの継ぎ手としても使用でき、型、治工具の初期投資を従来に比べて遥かに低減し、また型、治工具の管理コストを含め製造コストをも低減する。 Therefore, if the joints 6, 7, 8, and 9 are manufactured with one type of mold and jig, it can be used as the right or left joint of the side members 3, 3 ', and the initial investment of the mold and jig The manufacturing cost is also reduced, including the management cost of molds and jigs.

なお、前記継ぎ手６、７、８、９の他の継ぎ手又は継ぎ手以外のサイドメンバ３、３’部分との接続は、例えば上記継ぎ手又はサイドメンバ３、３’の各端部に密に挿入固定する接続材（図示せず）により行うことが考えられる。 The joints 6, 7, 8, 9 are connected to other joints or the side members 3, 3 'other than the joints, for example, by being inserted and fixed tightly at the respective ends of the joints or side members 3, 3'. It is conceivable to use a connecting material (not shown).

本発明の車枠以外への利用は考えられない。 Use other than the vehicle frame of the present invention is not considered.

本発明の車枠の一例を示す斜視図である。It is a perspective view which shows an example of the vehicle frame of this invention. 車幅方向変化部位と高さ方向変化部位を備えた本発明車枠の継ぎ手の一例を示す斜視図である。It is a perspective view which shows an example of the joint of this invention vehicle frame provided with the vehicle width direction change site | part and the height direction change site | part. 本発明車枠の継ぎ手の原理を示す斜視図である。It is a perspective view which shows the principle of the joint of this invention vehicle frame. 車幅方向変化部位と高さ方向変化部位を備えた本発明車枠の継ぎ手の他の例を示す斜視図である。It is a perspective view which shows the other example of the joint of the vehicle frame of this invention provided with the vehicle width direction change site | part and the height direction change site | part. 車幅方向変化部位と高さ方向変化部位を備えた本発明車枠の継ぎ手の更に他の例を示す斜視図である。It is a perspective view which shows the further another example of the joint of the vehicle frame of this invention provided with the vehicle width direction change site | part and the height direction change site | part. 高さ方向変化部位のみを備えた本発明車枠の継ぎ手の例を示す斜視図である。It is a perspective view which shows the example of the joint of this invention vehicle frame provided only with the height direction change site | part. 本発明車枠の継ぎ手の断面の一例を示す図である。It is a figure which shows an example of the cross section of the joint of this invention vehicle frame. 本発明車枠の継ぎ手の断面の他の例を示す図である。It is a figure which shows the other example of the cross section of the joint of this invention vehicle frame. 本発明車枠の継ぎ手の断面の更に他の例を示す図である。It is a figure which shows the further another example of the cross section of the joint of this invention vehicle frame. 従来の車枠の一例を示す斜視図である。It is a perspective view which shows an example of the conventional vehicle frame.

符号の説明Explanation of symbols

１車枠
２クロスメンバ
３、３’ サイドメンバ
４車幅方向に変化する部分
５高さ方向に変化する部分
６、７、８継ぎ手。 1 Car frame 2 Cross member 3, 3 'Side member 4 Part changing in the vehicle width direction 5 Part changing in the height direction 6, 7, 8 Joints.

Claims

左右のサイドメンバを複数のクロスメンバにより所定幅に連結してなる車枠の前記サイドメンバに設けられた、車幅方向及び／又は高さ方向に変化する部分を備える分割可能な継ぎ手であって、該継ぎ手が左右において前後方向の回転対称に形成されたことを特徴とする車枠の継ぎ手。 A separable joint provided with a portion that changes in the vehicle width direction and / or the height direction, provided on the side member of the vehicle frame formed by connecting left and right side members to a predetermined width by a plurality of cross members, A joint for a vehicle frame, wherein the joint is formed to be rotationally symmetrical in the front-rear direction on the left and right.

前記継ぎ手が車幅方向の変化する部分の長さより、高さ方向の変化する部分の長さを大としたことを特徴とする請求項１記載の車枠の継ぎ手。 The joint of a vehicle frame according to claim 1, wherein the length of the portion that changes in the height direction is larger than the length of the portion that changes in the vehicle width direction of the joint.

前記継ぎ手が車幅方向の変化する部分の長さと、高さ方向の変化する部分の長さとを等しくしたことを特徴とする請求項１記載の車枠の継ぎ手。 2. The joint of a vehicle frame according to claim 1, wherein the joint has the same length in the vehicle width direction and the length in the height direction.

前記継ぎ手が車幅方向に変化しないこと特徴とする請求項１記載の車枠の継ぎ手。 The vehicle frame joint according to claim 1, wherein the joint does not change in a vehicle width direction.