JP2004270717A - Leaf spring pad for vehicle - Google Patents

Leaf spring pad for vehicle Download PDF

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Publication number
JP2004270717A
JP2004270717A JP2003058291A JP2003058291A JP2004270717A JP 2004270717 A JP2004270717 A JP 2004270717A JP 2003058291 A JP2003058291 A JP 2003058291A JP 2003058291 A JP2003058291 A JP 2003058291A JP 2004270717 A JP2004270717 A JP 2004270717A
Authority
JP
Japan
Prior art keywords
leaf
spring pad
spring
length
leaf spring
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.)
Pending
Application number
JP2003058291A
Other languages
Japanese (ja)
Inventor
Yutaka Sakuma
豊 佐久間
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 JP2003058291A priority Critical patent/JP2004270717A/en
Publication of JP2004270717A publication Critical patent/JP2004270717A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a leaf spring pad for changing a spring constant of a leaf spring, only by changing the assembling direction to leaves. <P>SOLUTION: The spring pad 2 is overlapped with the leaves 1 on an upper face central portion of a top leaf of the leaves 1, and is fastened and fixed to the leaves 1 by U-bolts 3. Since length of a front surface of the spring pad 2 is different from that of a back face thereof, fixed length according to the fastening and fixing by means of the U-bolts 3 can be changed only by changing the direction where the spring pad 2 is assembled to the leaves 1, so that the spring constant of the leaf spring can be changed. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は車両用リーフスプリングに組み込まれるスプリングパッドに関するものである。
【0002】
【従来の技術】
従来の車両用リーフスプリングパッドは、リーフの幅と、リーフをアクスルに締付固定するUボルトの取付幅に必要最小限の長さに応じたものであった。このために、従来では車両の仕様ごとに専用のスプリングパッドを用意して所定のばね定数のリーフスプリングを構成する必要性があったために、車種の増加にともなってスプリングパッドの種類を増やす必要性があった(特許文献参照)。
【0003】
【特許文献】
特開平9−39533号公報
【0004】
【発明が解決しようとする課題】
本発明は上記実情に鑑みてなされたものであって、リーフへの組付方向を変更するのみでリーフスプリングのバネ定数を変更することができるリーフスプリングパッドを提供することを課題としている。
【0005】
【課題を解決するための手段】
上記課題を解決するために本発明は、リーフの上面中央部に重ね合わされてUボルトで締付固定されるスプリングパッドの表面の長さと裏面の長さを異ならせたことを特徴としている。
【0006】
【発明の実施の形態】
以下に本発明の実施形態を図に基づいて詳細に説明する。図1は本発明に係る車両用リーフスプリングパッドの一実施形態を示すリーフへの取付状態を示す要部の斜視図であり、重ね合わせた複数枚のリーフ1の上面中央にスプリングパッド2を重ね合わせている。3はリーフ1とスプリングパッド2をアクスル4に締付固定するUボルトである。
【0007】
スプリングパッド2は、図2に示したようにリーフ1の幅とほぼ同一幅に形成されており、その表面および裏面にそれぞれUボルト3の位置決め溝5を形成している。また、スプリングパッド2におけるスプリングの長さ方向に沿う寸法、すなわち、スプリングパッド2の表面の長さと裏面の長さを異ならせることにより、スプリングパッド2を表裏反転させることでUボルト3によるリーフ1に対する絞め殺し長さを変化させることができるようにしている。
【0008】
すなわち、Uボルト3による締付固定により、リーフ1はスプリングパッド2との当接領域が絞め殺し状態になる。また、この絞め殺し長さが変化すると、リーフ1のばね定数が変化する。
【0009】
従って、図1に示したようにスプリングパッド2の裏面をリーフ1の上面に当接させてUボルト3で締付固定した場合と、スプリングパッド2を表裏反転させてその表面をリーフ1の上面に重ね合わせてこれをUボルト3で締付固定した場合では、スプリングパッド2の押圧による締め殺しの長さが変化するために、リーフ1のばね定数が変化する。
【0010】
このために、同一のリーフ1およびスプリングパッド2を用いるにも拘らず、ばね定数の異なる2種のリーフスプリングを構成することが可能となり、予め用意すべきリーフ1およびスプリングパッド2の種類を減少することができる。
【0011】
なお、上記実施形態においては、図1および図2に示したようにスプリングパッド2の端面を段付面で構成することにより、スプリングパッド2の表面の長さと裏面の長さを異ならせているが、図3に示したように端面を傾斜面で構成してスプリングパッド2の表面の長さと裏面の長さを異ならせることもできる。
【0012】
さらに、例えば図3に示した実施形態のようにスプリングパッド2の表面および裏面と端面が形成する稜線を円弧状の曲面などで構成した場合は、スプリングパッド2とリーフ1の当接領域境界部分における応力集中を回避することが可能となる。
【0013】
さらにまた、リーフスプリングのばね定数を変化させるに際しては、Uボルト3の取付位置を変化させることが有効であり、スプリングパッド2に形成するUボルト3の位置決め溝5の位置を表面と裏面で異ならせ、または、複数条の位置決め溝を予め形成してUボルト3の取付位置を必要に応じて選択することもできる。
【0014】
【発明の効果】
以上の説明から明らかなように本発明は、スプリングパッドの表面の長さと裏面の長さを異ならせたものであるから、リーフに対するスプリングパッドの組付方向を変更するのみでリーフスプリングのばね定数を異ならせることができるために、多数種のリーフスプリングを製造するに際しても予め用意すべきリーフあるいはスプリングパッドの種類を削減することが可能となる。
【図面の簡単な説明】
【図1】本発明に係る車両用リーフスプリングパッドの一実施形態を示すリーフへの取付状態を示す要部の斜視図である。
【図2】図1に示したスプリングパッドの斜視図である。
【図3】他の実施形態を示すスプリングパッドの側面図である。
【符号の説明】
1 リーフ
2 スプリングパッド
3 Uボルト
4 アクスル
5 位置決め溝
11
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spring pad incorporated in a leaf spring for a vehicle.
[0002]
[Prior art]
The conventional vehicle leaf spring pad has been adapted to the minimum length required for the width of the leaf and the mounting width of the U bolt for tightening and fixing the leaf to the axle. For this reason, conventionally, it was necessary to prepare a dedicated spring pad for each vehicle specification to form a leaf spring having a predetermined spring constant. Therefore, it is necessary to increase the types of spring pads as the number of vehicle types increases. (See Patent Literature).
[0003]
[Patent Document]
JP-A-9-39533
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a leaf spring pad that can change the spring constant of a leaf spring only by changing the assembly direction to the leaf.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is characterized in that the length of the front surface and the length of the back surface of the spring pad overlapped on the center of the upper surface of the leaf and fastened and fixed with U bolts are made different.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of an essential part showing an attached state to a leaf showing one embodiment of a vehicle leaf spring pad according to the present invention, in which a spring pad 2 is superimposed on the center of the upper surface of a plurality of superimposed leaves 1. I am matching. Reference numeral 3 denotes a U bolt for fastening the leaf 1 and the spring pad 2 to the axle 4.
[0007]
The spring pad 2 is formed to have substantially the same width as the leaf 1 as shown in FIG. 2, and has a positioning groove 5 for the U bolt 3 on the front surface and the back surface, respectively. Also, the size of the spring pad 2 along the length direction of the spring, that is, the length of the front surface and the back surface of the spring pad 2 is made different from each other, so that the spring pad 2 is turned upside down, so that the leaf 1 with the U bolt 3 is used. The length of the strangler can be changed.
[0008]
That is, the leaf 1 comes into contact with the spring pad 2 by being tightened and fixed by the U-bolt 3 so that the leaf 1 is in a strangled state. Also, when the stroke length changes, the spring constant of the leaf 1 changes.
[0009]
Therefore, as shown in FIG. 1, the back surface of the spring pad 2 is brought into contact with the upper surface of the leaf 1 and fastened and fixed with the U-bolt 3. In the case where this is superimposed and fixed with U bolts 3, the length of the tightening by the pressing of the spring pad 2 changes, so that the spring constant of the leaf 1 changes.
[0010]
For this reason, although the same leaf 1 and spring pad 2 are used, two types of leaf springs having different spring constants can be configured, and the types of leaves 1 and spring pads 2 to be prepared in advance can be reduced. can do.
[0011]
In the above embodiment, the end surface of the spring pad 2 is formed as a stepped surface as shown in FIGS. 1 and 2 so that the length of the front surface and the length of the back surface of the spring pad 2 are different. However, as shown in FIG. 3, the end surface may be formed as an inclined surface so that the length of the front surface and the length of the back surface of the spring pad 2 can be different.
[0012]
Further, for example, when the ridge formed by the front and back surfaces and the end surface of the spring pad 2 is formed by an arcuate curved surface or the like as in the embodiment shown in FIG. Can be avoided.
[0013]
Furthermore, when changing the spring constant of the leaf spring, it is effective to change the mounting position of the U bolt 3. If the position of the positioning groove 5 of the U bolt 3 formed in the spring pad 2 is different between the front surface and the back surface, Alternatively, a plurality of positioning grooves may be formed in advance, and the mounting position of the U bolt 3 may be selected as needed.
[0014]
【The invention's effect】
As is apparent from the above description, since the present invention differs in the length of the front surface and the length of the back surface of the spring pad, the spring constant of the leaf spring is changed only by changing the mounting direction of the spring pad to the leaf. Can be made different, so that it is possible to reduce the types of leaves or spring pads to be prepared in advance even when manufacturing many types of leaf springs.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing an attached state to a leaf showing one embodiment of a vehicle leaf spring pad according to the present invention.
FIG. 2 is a perspective view of the spring pad shown in FIG. 1;
FIG. 3 is a side view of a spring pad showing another embodiment.
[Explanation of symbols]
Reference Signs List 1 leaf 2 spring pad 3 U bolt 4 axle 5 positioning groove 11

Claims (1)

リーフの上面中央部にスプリングパッドを重ね合わせて両者をUボルトで締付固定するようにした車両用リーフスプリングにおいて、リーフスプリングの長さ方向に沿うスプリングパッドの表面の長さと裏面の長さを異ならせたことを特徴とする車両用リーフスプリングパッド。In a leaf spring for a vehicle in which a spring pad is overlapped on the center of the upper surface of the leaf and both are tightened and fixed with U bolts, the length of the front surface and the length of the back surface of the spring pad along the length direction of the leaf spring are determined. A leaf spring pad for vehicles characterized by being different.
JP2003058291A 2003-03-05 2003-03-05 Leaf spring pad for vehicle Pending JP2004270717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003058291A JP2004270717A (en) 2003-03-05 2003-03-05 Leaf spring pad for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003058291A JP2004270717A (en) 2003-03-05 2003-03-05 Leaf spring pad for vehicle

Publications (1)

Publication Number Publication Date
JP2004270717A true JP2004270717A (en) 2004-09-30

Family

ID=33121434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003058291A Pending JP2004270717A (en) 2003-03-05 2003-03-05 Leaf spring pad for vehicle

Country Status (1)

Country Link
JP (1) JP2004270717A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD731367S1 (en) 2014-01-14 2015-06-09 Stempf Automotive Industries, Inc. Strut suspension spacer
USD731368S1 (en) 2014-01-14 2015-06-09 Stempf Automotive Industries, Inc. Strut suspension spacer combination
US9211775B1 (en) 2014-10-17 2015-12-15 Stempf Automotive Industries, Inc. Adjustable suspension height modification apparatus
US9233588B2 (en) 2014-01-14 2016-01-12 Stempf Automotive Industries, Inc. Strut suspension assembly system
USD750535S1 (en) 2014-10-17 2016-03-01 Stempf Automotive Industries, Inc. Suspension spacer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD731367S1 (en) 2014-01-14 2015-06-09 Stempf Automotive Industries, Inc. Strut suspension spacer
USD731368S1 (en) 2014-01-14 2015-06-09 Stempf Automotive Industries, Inc. Strut suspension spacer combination
US9233588B2 (en) 2014-01-14 2016-01-12 Stempf Automotive Industries, Inc. Strut suspension assembly system
US9211775B1 (en) 2014-10-17 2015-12-15 Stempf Automotive Industries, Inc. Adjustable suspension height modification apparatus
USD750535S1 (en) 2014-10-17 2016-03-01 Stempf Automotive Industries, Inc. Suspension spacer

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