JP2008055964A - Brake pedal - Google Patents

Brake pedal Download PDF

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JP2008055964A
JP2008055964A JP2006232637A JP2006232637A JP2008055964A JP 2008055964 A JP2008055964 A JP 2008055964A JP 2006232637 A JP2006232637 A JP 2006232637A JP 2006232637 A JP2006232637 A JP 2006232637A JP 2008055964 A JP2008055964 A JP 2008055964A
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load
brake pedal
interposed
clevis
end portion
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JP5003062B2 (en
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Hiroshi Isono
宏 磯野
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To improve a mounting property to a vehicle by shortening the whole length, in a brake pedal. <P>SOLUTION: A clevis 16 is rotatably coupled to a brake pedal body 11 by a coupling shaft 17. On the other hand, a load transmitting element 18 is screwed with an operating rod 15, and a disc portion 16c of the clevis 16 is loosely fitted on an outer peripheral side of the load transmitting element 18. A ring member 19 is screwed with the load transmitting element 18, thereby clipping the disc portion 16c of the clevis 16 with a flange portion 18a of the load transmitting element 18 and the ring member 19. A lock nut 20 is screwed with the operating rod 15. On the outer peripheral side of the operating rod 15, first detecting elements 21a, 21b detecting a compressed load is interposed between the ring member 19 and the disc portion 16c of the clevis 16, and second detecting elements 22a, 22b detecting a tension load are interposed between the disc portion 16c of the clevis 16 and a flange portion 18a of the load transmitting element 18. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、乗員が操作することでその操作踏力をブレーキ装置に伝達し、車両に制動力を付与するブレーキペダルに関するものである。   The present invention relates to a brake pedal that transmits an operation pedal force to a brake device when operated by an occupant and applies a braking force to a vehicle.

車両のダッシュパネルの所定位置には、このダッシュパネルを挟むように前面側にマスタシリンダ及びブレーキブースタが配設されており、後面側にペダルブラケットが配設されている。そして、このペダルブラケットに吊り下げ式のブレーキペダルが回動自在に支持されており、ブレーキペダルとブレーキブースタとが操作ロッドにより連結されている。このように設けられたブレーキペダルには、乗員から入力されたペダル踏力を検出する踏力荷重の検出器が設けられており、検出した踏力荷重に基づいてマスタシリンダやブレーキブースタを制御するようにしている。   At a predetermined position of the dash panel of the vehicle, a master cylinder and a brake booster are arranged on the front side so as to sandwich the dash panel, and a pedal bracket is arranged on the rear side. A suspension type brake pedal is rotatably supported by the pedal bracket, and the brake pedal and the brake booster are connected by an operation rod. The brake pedal thus provided is provided with a pedal load detector for detecting the pedal effort input from the occupant, and the master cylinder and the brake booster are controlled based on the detected pedal effort load. Yes.

図４は、操作ロッドが連結された従来のブレーキペダルの水平断面図である。従来のブレーキペダルにおいて、図４に示すように、上端部が車体に回動自在に支持されて下端部にペダルが装着されたブレーキペダル本体００１は、その上部側にクレビス００２の基端部が連結軸００３により連結されている。一方、ブレーキブースタに連結される操作ロッド００４の端部には、連結ロッド００５が螺合してロックナット００６により固定されている。そして、クレビス００２に連結ロッド００５の突起部００７が螺合し、両者の間に荷重検出器００８が設けられている。そして、操作ロッド００４と連結ロッド００５との螺合位置を変更することで、長さ調整を行うことができる。   FIG. 4 is a horizontal sectional view of a conventional brake pedal to which an operation rod is connected. In the conventional brake pedal, as shown in FIG. 4, the brake pedal body 001 whose upper end is rotatably supported by the vehicle body and the pedal is attached to the lower end has a base end of the clevis 002 on the upper side. They are connected by a connecting shaft 003. On the other hand, the connecting rod 005 is screwed to the end of the operation rod 004 connected to the brake booster and is fixed by a lock nut 006. And the projection part 007 of the connecting rod 005 is screwed to the clevis 002, and the load detector 008 is provided between them. And length adjustment can be performed by changing the screwing position of the operation rod 004 and the connection rod 005. FIG.

従って、乗員がペダルを踏んでブレーキペダル本体００１が回動すると、このブレーキペダル本体００１と共にクレビス００２が前進し、連結ロッド００５を介して操作ロッド００４を押圧することで、この操作ロッド００４が前進してマスタシリンダやブレーキブースタを作動させる。このとき、荷重検出器００８にはクレビス００２から押圧力が作用することで、この荷重を検出して踏力荷重として出力する。   Accordingly, when the occupant steps on the pedal and the brake pedal body 001 rotates, the clevis 002 moves forward together with the brake pedal body 001, and the operation rod 004 moves forward by pressing the operation rod 004 via the connecting rod 005. Then, operate the master cylinder and brake booster. At this time, a pressing force is applied to the load detector 008 from the clevis 002, and this load is detected and output as a pedaling force load.

このような従来のブレーキペダルとしては、例えば、下記特許文献１に記載されたものがある。   An example of such a conventional brake pedal is described in Patent Document 1 below.

特開２００４−２５８８１０号公報JP 2004-258810 A

上述した従来のブレーキペダルにあっては、ブレーキペダル本体００１に連結されたクレビス００２と、操作ロッド００４に連結された連結ロッド００５との間に、荷重検出器００８が直列状態で設けられている。そのため、クレビス００２、操作ロッド００４、連結ロッド００５の全長が長くなり、ブレーキペダルの位置が後方に位置することとなり、搭載性が困難となってしまうという問題がある。また、連結ロッド００５の突起部００７がクレビス００２に螺合したその間に荷重検出器００８が設けられており、荷重検出器００８がクレビス００２から入力する荷重を検出するとき、突起部００７とクレビス００２との螺合部が抵抗となってしまい、踏力荷重を高精度に検出することができないという問題もある。   In the conventional brake pedal described above, the load detector 008 is provided in series between the clevis 002 connected to the brake pedal body 001 and the connecting rod 005 connected to the operation rod 004. . Therefore, the total length of the clevis 002, the operation rod 004, and the connecting rod 005 becomes long, and the position of the brake pedal is located rearward, which causes a problem that the mountability becomes difficult. A load detector 008 is provided between the protrusion 007 of the connecting rod 005 screwed to the clevis 002. When the load detector 008 detects a load input from the clevis 002, the protrusion 007 and the clevis 002 are provided. There is also a problem in that the treading force load cannot be detected with high accuracy.

本発明は、このような問題を解決するためのものであって、全長を短縮可能とすることで車両への搭載性の向上を図ったブレーキペダルを提供することを目的とする。   The present invention is for solving such a problem, and an object of the present invention is to provide a brake pedal that can be mounted on a vehicle by reducing the overall length.

上述した課題を解決し、目的を達成するために、本発明のブレーキペダルは、基端部が車体に回動自在に支持されて先端部にペダルが装着されたブレーキペダル本体と、ブレーキ装置に連結される操作ロッドと、前記ブレーキペダル本体に入力された踏力に応じて移動する連結部材と、前記操作ロッドの外周部に固定されて前記連結部材の荷重を受け止めて前記操作ロッドに伝達する荷重伝達部材と、前記操作ロッドの外周側における前記連結部材と前記荷重伝達部材との間に介装されて圧縮荷重を検出する第１荷重検出部とを具えたことを特徴とするものである。   In order to solve the above-described problems and achieve the object, the brake pedal of the present invention includes a brake pedal body in which a base end portion is rotatably supported by a vehicle body and a pedal is attached to a distal end portion, and a brake device. An operating rod to be connected, a connecting member that moves according to the pedaling force input to the brake pedal body, and a load that is fixed to the outer periphery of the operating rod, receives the load of the connecting member, and transmits the load to the operating rod A transmission member and a first load detection unit that is interposed between the connecting member and the load transmission member on the outer peripheral side of the operation rod and detects a compressive load are provided.

本発明のブレーキペダルでは、前記連結部材は基端部が前記ブレーキペダル本体に連結され、先端部が前記操作ロッドのフランジ部と前記荷重伝達部材とで挟持され、前記連結部材の先端部と前記荷重伝達部材との間に前記第１荷重検出部が介装されたことを特徴としている。   In the brake pedal of the present invention, a base end portion of the connecting member is connected to the brake pedal main body, a tip end portion is sandwiched between the flange portion of the operation rod and the load transmitting member, and the tip end portion of the connecting member and the The first load detector is interposed between the load transmitting member and the load transmitting member.

本発明のブレーキペダルでは、前記連結部材の先端部と前記フランジ部との間に引張荷重を検出する第２荷重検出部が介装されたことを特徴としている。   The brake pedal according to the present invention is characterized in that a second load detection unit for detecting a tensile load is interposed between the distal end portion of the connecting member and the flange portion.

本発明のブレーキペダルでは、前記荷重伝達部材は、フランジ部を有して前記操作ロッドに螺合する荷重伝達子と、該荷重伝達子の外周部に螺合して前記荷重伝達子のフランジ部との間で前記連結部材の先端部を挟持するリング部材と、前記操作ロッドに螺合すると共に前記リング部材に接触するロックナットとを有することを特徴としている。   In the brake pedal according to the present invention, the load transmission member has a flange portion and is screwed to the operation rod, and the load transmission member is screwed to an outer peripheral portion of the load transmission member to be flanged. And a lock nut that engages with the operation rod and contacts the ring member.

本発明のブレーキペダルでは、前記リング部材と前記連結部材の先端部との間に前記第１荷重検出部が介装され、前記連結部材の先端部と前記荷重伝達子のフランジ部との間に引張荷重を検出する第２荷重検出部が介装されたことを特徴としている。   In the brake pedal of the present invention, the first load detection unit is interposed between the ring member and the tip of the connecting member, and between the tip of the connecting member and the flange of the load transmission element. A second load detection unit for detecting a tensile load is interposed.

本発明のブレーキペダルでは、前記第１荷重検出部が検出した圧縮荷重及び前記第２荷重検出部が検出した引張荷重に基づいて踏力荷重を算出することを特徴としている。   The brake pedal according to the present invention is characterized in that a pedaling force load is calculated based on a compressive load detected by the first load detector and a tensile load detected by the second load detector.

本発明のブレーキペダルによれば、ブレーキペダル本体に入力された踏力に応じて移動する連結部材を設ける一方、操作ロッドの外周部に連結部材の荷重を受け止めて操作ロッドに伝達する荷重伝達部材を固定し、操作ロッドの外周側における連結部材と荷重伝達部材との間に圧縮荷重を検出する第１荷重検出部を介装したので、ブレーキペダル本体への踏力が連結部材に入力されると、荷重伝達部材がこの連結部材の荷重を受け止めて操作ロッドに伝達し、このとき、第１荷重検出部が圧縮荷重を検出して踏力荷重として出力することとなり、操作ロッドの外周側に並列して第１荷重検出部を設けることで、全長を短縮可能として車両への搭載性を向上することができる。   According to the brake pedal of the present invention, the connecting member that moves in response to the pedaling force input to the brake pedal body is provided, and the load transmitting member that receives the load of the connecting member on the outer periphery of the operating rod and transmits the load to the operating rod. Since the first load detection unit that fixes and detects the compressive load is interposed between the connecting member and the load transmitting member on the outer peripheral side of the operation rod, when the treading force to the brake pedal body is input to the connecting member, The load transmitting member receives the load of the connecting member and transmits it to the operating rod. At this time, the first load detecting unit detects the compressive load and outputs it as a pedaling force load, in parallel with the outer peripheral side of the operating rod. By providing the first load detection unit, the overall length can be shortened and the mounting property on the vehicle can be improved.

以下に、本発明に係るブレーキペダルの実施例を図面に基づいて詳細に説明する。なお、この実施例により本発明が限定されるものではない。   Below, the example of the brake pedal concerning the present invention is described in detail based on a drawing. In addition, this invention is not limited by this Example.

図１は、本発明の一実施例に係るブレーキペダルを表す水平断面（図２のＩ−Ｉ断面）図、図２は、本実施例のブレーキペダルの概略構成図、図３は、本実施例のブレーキペダルにおける荷重検出器の出力電圧を表すグラフである。   FIG. 1 is a horizontal sectional view (II-II section of FIG. 2) showing a brake pedal according to one embodiment of the present invention, FIG. 2 is a schematic configuration diagram of the brake pedal of the present embodiment, and FIG. It is a graph showing the output voltage of the load detector in the brake pedal of an example.

実施例１のブレーキペダルにおいて、図１及び図２に示すように、ブレーキペダル本体１１は、上端部（基端部）が車体側の取付ブラケット１２に支持軸１３により回動自在に吊り下げ支持されており、下端部（先端部）に乗員が踏み込み可能なペダル１４が装着されている。一方、操作ロッド１５は、先端部がブレーキ装置を作動制御するマスタシリンダ及びブレーキブースタに連結されている。   In the brake pedal according to the first embodiment, as shown in FIGS. 1 and 2, the brake pedal main body 11 is supported by a support shaft 13 that is pivotably supported by a support shaft 13 at an upper end (base end) of the brake pedal body 11. A pedal 14 that can be depressed by the occupant is attached to the lower end (front end). On the other hand, the operating rod 15 has a tip connected to a master cylinder and a brake booster that control the operation of the brake device.

そして、ブレーキペダル本体１１は、その両側にこのブレーキペダル本体１１に入力された踏力に応じて移動する連結部材としてのクレビス１６の二股部１６ａ，１６ｂが位置し、連結軸１７により互いに回動自在に連結されている。一方、操作ロッド１５は、その基端部に雄ねじ部１５ａが形成され、この雄ねじ部１５ａに荷重伝達子１８が螺合している。この荷重伝達子１８は、円筒形状をなして軸方向一方側にフランジ部１８ａが形成されると共に、内周部の雌ねじ部１８ｂが形成され、外周部に雄ねじ部１８ｃが形成されている。   The brake pedal body 11 is provided with bifurcated portions 16 a and 16 b of a clevis 16 as a connecting member that moves in accordance with the pedaling force input to the brake pedal body 11 on both sides thereof, and is rotatable with respect to the connecting shaft 17. It is connected to. On the other hand, the operating rod 15 has a male threaded portion 15a formed at the base end thereof, and a load transmission element 18 is screwed into the male threaded portion 15a. The load transmission element 18 has a cylindrical shape, a flange portion 18a is formed on one side in the axial direction, an internal thread portion 18b is formed on the inner peripheral portion, and an external thread portion 18c is formed on the outer peripheral portion.

クレビス１６は、先端部側に形成された円板部１６ｃが荷重伝達子１８の外周側に遊嵌し、一端面がフランジ部１８ａに当接可能となっている。また、荷重伝達子１８は、雄ねじ部１８ｃにリング部材１９が螺合している。このリング部材１９は、リング形状をなし、内周部に雌ねじ部１９ａが形成されている。そして、荷重伝達子１８の外周側に遊嵌したクレビス１６は、他端面がリング部材１９に当接可能となっている。即ち、クレビス１６の円板部１６ｃは、荷重伝達子１８のフランジ部１８ａとリング部材１９との間に位置して挟持されている。そして、ロックナット２０は、操作ロッド１５に螺合すると共にリング部材１９に接触することで、このリング部材１９の弛緩が防止されている。   In the clevis 16, a disc portion 16c formed on the tip end side is loosely fitted on the outer peripheral side of the load transmitting element 18, and one end surface thereof can abut on the flange portion 18a. Further, in the load transmission element 18, the ring member 19 is screwed into the male screw portion 18c. The ring member 19 has a ring shape, and an internal thread portion 19a is formed on the inner peripheral portion. The clevis 16 loosely fitted on the outer peripheral side of the load transmitting element 18 can be brought into contact with the ring member 19 at the other end surface. That is, the disc portion 16 c of the clevis 16 is positioned and sandwiched between the flange portion 18 a of the load transmitter 18 and the ring member 19. The lock nut 20 is screwed into the operation rod 15 and contacts the ring member 19, thereby preventing the ring member 19 from loosening.

なお、本実施例では、操作ロッドの外周部に固定されて連結部材の荷重を受け止めて操作ロッドに伝達する本発明の荷重伝達部材は、荷重伝達子１８とリング部材１９とロックナット２０により構成されている。   In this embodiment, the load transmitting member of the present invention, which is fixed to the outer peripheral portion of the operating rod and receives the load of the connecting member and transmits it to the operating rod, is constituted by the load transmitting element 18, the ring member 19 and the lock nut 20. Has been.

そして、操作ロッド１５の外周側にて、リング部材１９とクレビス１６の円板部１６ｃとの間に圧縮荷重を検出する第１検出子（第１荷重検出部）２１ａ，２１ｂが介装され、クレビス１６の円板部１６ｃと荷重伝達子１８のフランジ部１８ａとの間に引張荷重を検出する第２検出子（第２荷重検出部）２２ａ，２２ｂが介装されている。   And on the outer peripheral side of the operating rod 15, first detectors (first load detecting portions) 21a, 21b for detecting a compressive load are interposed between the ring member 19 and the disc portion 16c of the clevis 16, Between the disc part 16c of the clevis 16 and the flange part 18a of the load transmitter 18, second detectors (second load detectors) 22a and 22b for detecting a tensile load are interposed.

この場合、第１検出子２１ａ，２１ｂは、周方向に等間隔（１８０度）で２つ設けられ、第２検出子２２ａ，２２ｂも周方向に等間隔（１８０度）で２つ設けられている。そして、第１検出子２１ａ，２１ｂが検出した圧縮荷重と第２検出子２２ａ，２２ｂが検出した引張荷重に基づいてブレーキペダルの踏力荷重を算出するようにしている。即ち、図３に示すように、踏力荷重が増加すると、第１検出子２１ａ，２１ｂの出力電圧Ｅ１ａ，Ｅ１ｂが増加する一方、第２検出子２２ａ，２２ｂの出力電圧Ｅ２ａ，Ｅ２ｂが減少する。そして、ブレーキペダルの踏力荷重Ｆは、下記数式により算出される。   In this case, two first detectors 21a and 21b are provided at equal intervals (180 degrees) in the circumferential direction, and two second detectors 22a and 22b are also provided at equal intervals (180 degrees) in the circumferential direction. Yes. Then, the pedal force load of the brake pedal is calculated based on the compressive load detected by the first detectors 21a and 21b and the tensile load detected by the second detectors 22a and 22b. That is, as shown in FIG. 3, when the pedal force load increases, the output voltages E1a and E1b of the first detectors 21a and 21b increase, while the output voltages E2a and E2b of the second detectors 22a and 22b decrease. And the pedal effort load F of a brake pedal is computed by the following numerical formula.

Ｆ＝Ａ（Ｅ２ａ−Ｅ２ｂ−Ｅ１ａ＋Ｅ１ｂ）
ここで、Ａは、電圧を荷重に変換する変換係数である。 F = A (E2a-E2b-E1a + E1b)
Here, A is a conversion coefficient for converting a voltage into a load.

従って、図１及び図２に示すように、乗員がブレーキペダルを踏み込むと、その踏力によりブレーキペダル本体１１が支持軸１３を中心として、図２にて時計回り方向に回動する。すると、その踏力がブレーキペダル本体１１から連結軸１７を介してクレビス１６に入力され、円板部１６ｃが第１検出子２１ａ，２１ｂを介してリング部材１９を押圧することで、荷重がこのリング部材１９から荷重伝達子１８（ロックナット２０）を介して操作ロッド１５に伝達され、この操作ロッド１５が前進する。   Therefore, as shown in FIGS. 1 and 2, when the occupant steps on the brake pedal, the brake pedal body 11 rotates around the support shaft 13 in the clockwise direction in FIG. Then, the pedaling force is input from the brake pedal body 11 to the clevis 16 via the connecting shaft 17, and the disk portion 16c presses the ring member 19 via the first detectors 21a and 21b, so that the load is applied to the ring. It is transmitted from the member 19 to the operating rod 15 via the load transmitter 18 (lock nut 20), and the operating rod 15 moves forward.

このとき、クレビス１６は、円板部１６ｃが荷重伝達子１８のフランジ部１８ａとリング部材１９との間で相対変位することで、第１検出子２１ａ，２１ｂが圧縮荷重をそれぞれ検出し、第２検出子２２ａ，２２ｂが引張荷重をそれぞれ検出し、この圧縮荷重と引張荷重に基づいてブレーキペダルの踏力荷重が算出される。   At this time, in the clevis 16, the disk portion 16 c is relatively displaced between the flange portion 18 a of the load transmitting element 18 and the ring member 19, so that the first detectors 21 a and 21 b detect the compressive load, respectively. The two detectors 22a and 22b detect the tensile load, respectively, and the depression force load of the brake pedal is calculated based on the compression load and the tensile load.

また、ブレーキペダル本体１１、クレビス１６、連結軸１７、荷重伝達子１８、リング部材１９によりサブ組立体として組み立てられ、車両への搭載時に操作ロッド１５の雄ねじ部１５ａを荷重伝達子１８の雌ねじ部１８ｂに螺合し、ロックナット２０により両者が連結固定される。このとき、荷重伝達子１８に対する操作ロッド１５の螺合位置を調節することで、操作ロッド１５におけるブレーキペダルの位置を調整することができる。   The brake pedal body 11, the clevis 16, the connecting shaft 17, the load transmission element 18, and the ring member 19 are assembled as sub-assemblies. The two nuts 18b are screwed together, and both are connected and fixed by the lock nut 20. At this time, the position of the brake pedal in the operation rod 15 can be adjusted by adjusting the screwing position of the operation rod 15 with respect to the load transmission element 18.

このように本実施例のブレーキペダルにあっては、ブレーキペダル本体１１にクレビス１６を連結軸１７により回動自在に連結する一方、操作ロッド１５に荷重伝達子１８を螺合し、クレビス１６の円板部１６ｃをこの荷重伝達子１８の外周側に遊嵌し、荷重伝達子１８にリング部材１９を螺合することで、クレビス１６の円板部１６ｃを、荷重伝達子１８のフランジ部１８ａとリング部材１９で挟持し、操作ロッド１５にロックナット２０を螺合して構成し、操作ロッド１５の外周側にて、リング部材１９とクレビス１６の円板部１６ｃとの間に圧縮荷重を検出する第１検出子２１ａ，２１ｂを介装し、クレビス１６の円板部１６ｃと荷重伝達子１８のフランジ部１８ａとの間に引張荷重を検出する第２検出子２２ａ，２２ｂを介装している。   As described above, in the brake pedal of this embodiment, the clevis 16 is rotatably connected to the brake pedal body 11 by the connecting shaft 17, while the load transmitting element 18 is screwed to the operation rod 15. The disc portion 16c is loosely fitted on the outer peripheral side of the load transmission element 18, and the ring member 19 is screwed into the load transmission element 18, so that the disc portion 16c of the clevis 16 is connected to the flange portion 18a of the load transmission element 18. Between the ring member 19 and the disc portion 16c of the clevis 16 on the outer peripheral side of the operation rod 15. First detectors 21a and 21b to be detected are interposed, and second detectors 22a and 22b to detect a tensile load are interposed between the disc portion 16c of the clevis 16 and the flange portion 18a of the load transmitter 18. Have .

従って、操作ロッド１５の外周側に第１検出子２１ａ，２１ｂ及び第２検出子２２ａ，２２ｂを並設したことで、操作ロッド１５の端部をブレーキペダル本体１１に接近して配設することができ、全長を短縮可能として車両への搭載性を向上することができる。   Therefore, by arranging the first detectors 21 a and 21 b and the second detectors 22 a and 22 b on the outer peripheral side of the operation rod 15, the end of the operation rod 15 is disposed close to the brake pedal body 11. The overall length can be shortened, and the mounting property on the vehicle can be improved.

また、荷重伝達子１８にリング部材１９を螺合し、クレビス１６の円板部１６ｃをフランジ部１８ａとリング部材１９で挟持し、リング部材１９と円板部１６ｃとの間に第１検出子２１ａ，２１ｂを介装し、円板部１６ｃとフランジ部１８ａとの間に第２検出子２２ａ，２２ｂを介装しており、このリング部材１９の螺合位置を調整することで、各検出子２１ａ，２１ｂ，２２ａ，２２ｂを適正に挟持することができ、高い精度を確保することができる。   Further, the ring member 19 is screwed into the load transmitting element 18, the disc portion 16 c of the clevis 16 is sandwiched between the flange portion 18 a and the ring member 19, and the first detector is interposed between the ring member 19 and the disc portion 16 c. 21a and 21b are interposed, and the second detectors 22a and 22b are interposed between the disc portion 16c and the flange portion 18a. By adjusting the screwing position of the ring member 19, each detection is performed. Child 21a, 21b, 22a, 22b can be clamped appropriately and high accuracy can be secured.

更に、捜査ロッド１５の外周側にクレビス１６を連結するため、連結部における高い剛性を確保することができ、信頼性を向上することができる。また、ロックナット２０が操作ロッド１５に対する荷重伝達子１８及びリング部材１９の緩み止め機能を有しており、構造の簡素化及びコストの低減を可能とする一方で、信頼性を向上することができる。   Furthermore, since the clevis 16 is connected to the outer peripheral side of the investigation rod 15, high rigidity in the connecting portion can be ensured, and reliability can be improved. In addition, the lock nut 20 has a function of preventing the load transmitting element 18 and the ring member 19 from loosening with respect to the operation rod 15, thereby enabling simplification of the structure and reduction in cost while improving reliability. it can.

また、ブレーキペダル本体１１への踏力がクレビス１６に入力されると、荷重伝達部材を構成する荷重伝達子１８がこのクレビス１６の荷重を受け止め、リング部材１９及びロックナット２０を介して操作ロッド１５に伝達することとなり、このとき、クレビス１６から操作ロッド１５に伝達される荷重に対して抵抗がほとんどない状態で、第１検出子２１ａ，２１ｂ及び第２検出子２２ａ，２２ｂが圧縮荷重及び引張荷重を検出し、踏力荷重として出力することとなり、検出誤差をなくして踏力荷重を高精度に検出することができる。   Further, when a pedaling force on the brake pedal body 11 is input to the clevis 16, the load transmitting element 18 constituting the load transmitting member receives the load of the clevis 16, and the operation rod 15 via the ring member 19 and the lock nut 20. At this time, the first detectors 21a and 21b and the second detectors 22a and 22b are compressed and tensioned in a state where there is almost no resistance to the load transmitted from the clevis 16 to the operating rod 15. The load is detected and output as a pedaling force load, so that the detection error can be eliminated and the pedaling force load can be detected with high accuracy.

また、第１検出子２１ａ，２１ｂ及び第２検出子２２ａ，２２ｂをそれぞれ２個ずつ設けており、各種部材の熱膨張に応じて適正に補正することができ、検出精度を向上することができる。   Further, two each of the first detectors 21a and 21b and the second detectors 22a and 22b are provided and can be appropriately corrected according to the thermal expansion of various members, so that the detection accuracy can be improved. .

なお、上述した各実施例では、本発明の第１荷重検出部として２つの第１検出子２１ａ，２１ｂを設け、第２荷重検出部として２つの第２検出子２２ａ，２２ｂを設けたが、第１検出子及び第２検出子をそれぞれ１つずつ設けてもよく、また、圧縮荷重を検出する第１検出子だけであってもよい。   In each of the above-described embodiments, the two first detectors 21a and 21b are provided as the first load detector of the present invention, and the two second detectors 22a and 22b are provided as the second load detector. One first detector and one second detector may be provided, or only the first detector for detecting a compressive load may be provided.

また、上述した各実施例では、本発明の荷重伝達部材として、荷重伝達子１８とリング部材１９とロックナット２０を設け、長さ方向の位置調整を可能としたが、この一調整機構を不要とする場合には、この構成に限定されるものではない。例えば、荷重伝達子１８をなくして操作ロッドに形成したフランジ部と操作ロッドに螺合したリング部材によりクレビスの円板部を挟持し、リング部材と円板部との間に第１検出子を介装し、円板部とフランジ部との間に第２検出子を介装してもよい。また、リング部材と円板部を操作ロッドに螺合し、これをロックナットにより固定し、ロックナットと円板部との間に第１検出子を介装してもよい。   In each of the above-described embodiments, the load transmission member 18, the ring member 19, and the lock nut 20 are provided as the load transmission member of the present invention to enable the position adjustment in the length direction, but this one adjustment mechanism is unnecessary. In this case, the present invention is not limited to this configuration. For example, the clevis disk portion is sandwiched between a flange portion formed on the operation rod without the load transmission element 18 and a ring member screwed to the operation rod, and the first detector is placed between the ring member and the disk portion. A second detector may be interposed between the disc portion and the flange portion. Further, the ring member and the disk part may be screwed to the operation rod, and this may be fixed by a lock nut, and the first detector may be interposed between the lock nut and the disk part.

以上のように、本発明に係るブレーキペダルは、荷重検出部を操作ロッドと並列に設けることで全長を短縮可能として車両への搭載性の向上するものであり、いずれのブレーキペダルにも有用である。   As described above, the brake pedal according to the present invention is provided with a load detection unit in parallel with the operation rod, so that the overall length can be shortened and the mounting property to the vehicle is improved. is there.

本発明の一実施例に係るブレーキペダルを表す水平断面（図２のＩ−Ｉ断面）図である。It is a horizontal section (II section of Drawing 2) figure showing a brake pedal concerning one example of the present invention. 本実施例のブレーキペダルの概略構成図である。It is a schematic block diagram of the brake pedal of a present Example. 本実施例のブレーキペダルにおける荷重検出器の出力電圧を表すグラフである。It is a graph showing the output voltage of the load detector in the brake pedal of a present Example. 操作ロッドが連結された従来のブレーキペダルの水平断面図である。It is a horizontal sectional view of the conventional brake pedal with which the operation rod was connected.

符号の説明Explanation of symbols

１１ ブレーキペダル本体
１５ 操作ロッド
１６ クレビス（連結部材）
１７ 連結軸
１８ 荷重伝達子（荷重伝達部材）
１８ａ フランジ部
１９ リング部材（荷重伝達部材）
２０ ロックナット（荷重伝達部材）
２１ａ，２１ｂ 第１検出子（第１荷重検出部）
２２ａ，２２ｂ 第２検出子（第２荷重検出部） 11 Brake pedal body 15 Operation rod 16 Clevis (connecting member)
17 Connecting shaft 18 Load transmitter (load transmission member)
18a Flange 19 Ring member (load transmission member)
20 Lock nut (load transmission member)
21a, 21b first detector (first load detector)
22a, 22b second detector (second load detector)

Claims (6)

基端部が車体に回動自在に支持されて先端部にペダルが装着されたブレーキペダル本体と、ブレーキ装置に連結される操作ロッドと、前記ブレーキペダル本体に入力された踏力に応じて移動する連結部材と、前記操作ロッドの外周部に固定されて前記連結部材の荷重を受け止めて前記操作ロッドに伝達する荷重伝達部材と、前記操作ロッドの外周側における前記連結部材と前記荷重伝達部材との間に介装されて圧縮荷重を検出する第１荷重検出部とを具えたことを特徴とするブレーキペダル。   A brake pedal body having a base end portion rotatably supported by the vehicle body and a pedal attached to a distal end portion thereof, an operation rod coupled to the brake device, and a movement according to a pedaling force input to the brake pedal body A connecting member, a load transmitting member fixed to the outer periphery of the operating rod, receiving the load of the connecting member and transmitting the load to the operating rod, and the connecting member and the load transmitting member on the outer peripheral side of the operating rod. A brake pedal comprising a first load detection unit interposed between the first load detection unit and a compression load. 請求項１に記載のブレーキペダルにおいて、前記連結部材は基端部が前記ブレーキペダル本体に連結され、先端部が前記操作ロッドのフランジ部と前記荷重伝達部材とで挟持され、前記連結部材の先端部と前記荷重伝達部材との間に前記第１荷重検出部が介装されたことを特徴とするブレーキペダル。   2. The brake pedal according to claim 1, wherein a base end portion of the connecting member is connected to the brake pedal main body, a tip end portion is sandwiched between a flange portion of the operation rod and the load transmitting member, and a tip end of the connecting member. The brake pedal, wherein the first load detection unit is interposed between a part and the load transmission member. 請求項２に記載のブレーキペダルにおいて、前記連結部材の先端部と前記フランジ部との間に引張荷重を検出する第２荷重検出部が介装されたことを特徴とするブレーキペダル。   3. The brake pedal according to claim 2, wherein a second load detection unit that detects a tensile load is interposed between a distal end portion of the connecting member and the flange portion. 請求項１に記載のブレーキペダルにおいて、前記荷重伝達部材は、フランジ部を有して前記操作ロッドに螺合する荷重伝達子と、該荷重伝達子の外周部に螺合して前記荷重伝達子のフランジ部との間で前記連結部材の先端部を挟持するリング部材と、前記操作ロッドに螺合すると共に前記リング部材に接触するロックナットとを有することを特徴とするブレーキペダル。   2. The brake pedal according to claim 1, wherein the load transmission member has a flange portion and is screwed to the operation rod, and the load transmission member is screwed to an outer peripheral portion of the load transmission member. A brake pedal, comprising: a ring member that sandwiches a tip end portion of the connecting member with the flange portion; and a lock nut that engages with the operation rod and contacts the ring member. 請求項４に記載のブレーキペダルにおいて、前記リング部材と前記連結部材の先端部との間に前記第１荷重検出部が介装され、前記連結部材の先端部と前記荷重伝達子のフランジ部との間に引張荷重を検出する第２荷重検出部が介装されたことを特徴とするブレーキペダル。   5. The brake pedal according to claim 4, wherein the first load detection unit is interposed between the ring member and a front end portion of the connection member, and a front end portion of the connection member and a flange portion of the load transmission element. A brake pedal, wherein a second load detection unit for detecting a tensile load is interposed between the brake pedals. 請求項３または５に記載のブレーキペダルにおいて、前記第１荷重検出部が検出した圧縮荷重及び前記第２荷重検出部が検出した引張荷重に基づいて踏力荷重を算出することを特徴とするブレーキペダル。   6. The brake pedal according to claim 3, wherein a pedal force load is calculated based on a compressive load detected by the first load detector and a tensile load detected by the second load detector. .
JP2006232637A 2006-08-29 2006-08-29 break pedal Expired - Fee Related JP5003062B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6360857A (en) * 1986-08-29 1988-03-16 Meisan Kk Tension controller
JPH11230841A (en) * 1998-02-17 1999-08-27 Toyota Motor Corp Method for calibrating sensor for amount related to brake and device for detecting amount related to brake
JP2000103325A (en) * 1998-09-29 2000-04-11 Toyota Motor Corp Detector for brake operating force
JP2001334919A (en) * 2000-05-26 2001-12-04 Toyota Motor Corp Detector for leg-power of brake pedal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6360857A (en) * 1986-08-29 1988-03-16 Meisan Kk Tension controller
JPH11230841A (en) * 1998-02-17 1999-08-27 Toyota Motor Corp Method for calibrating sensor for amount related to brake and device for detecting amount related to brake
JP2000103325A (en) * 1998-09-29 2000-04-11 Toyota Motor Corp Detector for brake operating force
JP2001334919A (en) * 2000-05-26 2001-12-04 Toyota Motor Corp Detector for leg-power of brake pedal

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