JP2006007996A - Steering force detection device for vehicular steering handlebar - Google Patents

Steering force detection device for vehicular steering handlebar Download PDF

Info

Publication number
JP2006007996A
JP2006007996A JP2004189350A JP2004189350A JP2006007996A JP 2006007996 A JP2006007996 A JP 2006007996A JP 2004189350 A JP2004189350 A JP 2004189350A JP 2004189350 A JP2004189350 A JP 2004189350A JP 2006007996 A JP2006007996 A JP 2006007996A
Authority
JP
Japan
Prior art keywords
pressure receiving
steering
detection
steering force
case
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
JP2004189350A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Kaneko
義之 金子
Tomoyoshi Koyanagi
智義 小柳
Yutaka Mizuno
裕 水野
Yoshinori Harada
佳典 原田
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.)
Yamaha Marine Co Ltd
Yamaha Motor Co Ltd
Original Assignee
Yamaha Marine Co Ltd
Yamaha Motor Co 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 Yamaha Marine Co Ltd, Yamaha Motor Co Ltd filed Critical Yamaha Marine Co Ltd
Priority to JP2004189350A priority Critical patent/JP2006007996A/en
Priority to US11/146,728 priority patent/US7430466B2/en
Publication of JP2006007996A publication Critical patent/JP2006007996A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a steering force detection device for vehicular steering handlebars that can precisely detect the steering force of steering handlebars. <P>SOLUTION: Steering force detection parts 30a and 30b each comprising a pressure reception part 34 are interspaced near a steering shaft 21, and a pressing member 22 for pressing the pressure reception part 34 when steering handlebars 11 are turned to a maximum steering angle is arranged on the steering shaft 21. A received pressure detection part 33 is also provided to detect the received pressure of the pressure reception part 34. The pressure reception part 34 and the received pressure detection part 33 are mounted coaxially in a pressure reception part case 27a and a detection part case 25 via a guide cylinder 32, and the pressure reception directions of the two pressure reception parts 34 are made orthogonal to the spaced direction of the steering force detection parts 30a etc. and in the same direction. The pressure reception part 34 comprises a pressure reception member 41, a bolt 42, a plain washer 43 and Belleville springs 44. The guide cylinder 32 has ribs 36 and 37 and groove portions 36a and 37a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、操舵ハンドルを最大操舵角度回転操作したときの操舵力を検出するための乗物用操舵ハンドルの操舵力検出装置に関する。   The present invention relates to a steering force detection device for a vehicle steering wheel for detecting a steering force when a steering wheel is rotated at a maximum steering angle.

従来から、操舵ハンドルを操作することによって進行方向を任意の方向に変更できる乗物が利用されており、この中に、例えば小型滑走艇がある。この小型滑走艇では、操舵ハンドルのグリップ近傍にスロットルレバーが設けられており、このスロットルレバーの操作量に応じてエンジンが駆動して船体が推進し、操舵ハンドルの操作に応じて船体の進行方向が変更する。また、従来のこのような小型滑走艇の中には、操舵ハンドルを操作することにより、エンジンの出力を増大させることができ、これによって、小型滑走艇が低速走行しながら接岸する際等の操舵性能を向上させることのできるものがある（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, vehicles that can change a traveling direction to an arbitrary direction by operating a steering handle are used, and for example, there is a small planing boat. In this small planing boat, a throttle lever is provided in the vicinity of the grip of the steering handle, the engine is driven according to the amount of operation of the throttle lever, and the hull is propelled. Will change. In addition, among such conventional small planing boats, the output of the engine can be increased by operating the steering handle, which makes it possible to steer when the small planing boat is berthing while traveling at low speed. There is one that can improve performance (for example, see Patent Document 1).

この小型滑走艇は、スロットルレバーの操作によって開閉するスロットルバルブの開度を検出するスロットル開度検出手段と、操舵ハンドルのステアリング角度を検出するステアリング角度検出手段と、小型滑走艇の船速を検出する船速検出手段と、エンジン出力を制御するエンジン出力制御手段とを備えている。そして、スロットル開度検出手段により検出したスロットル開度に応じた値が所定値以下で、ステアリング角度検出手段により検出したステアリング角度に応じた値が所定値以上で、船速検出手段により検出した船速に応じた値が所定値以上のときに、エンジン出力制御手段によりエンジン出力を上昇させるように制御する。
特開２００１−３２９８８１号公報 This small planing boat has a throttle opening detecting means for detecting the opening of a throttle valve that is opened and closed by operating a throttle lever, a steering angle detecting means for detecting a steering angle of a steering wheel, and a boat speed of the small planing boat. A ship speed detecting means for controlling the engine output and an engine output control means for controlling the engine output. The value corresponding to the throttle opening detected by the throttle opening detecting means is not more than a predetermined value, the value corresponding to the steering angle detected by the steering angle detecting means is not less than the predetermined value, and the ship detected by the ship speed detecting means. When the value corresponding to the speed is greater than or equal to a predetermined value, the engine output control means controls to increase the engine output.
JP 2001-329881 A

しかしながら、前述した従来の小型滑走艇では、操舵ハンドルのステアリング角度が所定値に達すると自動的にエンジン出力が上昇するため、操舵ハンドルの操作によるエンジン出力の上昇の程度を任意に調節することができなかった。そのため、操舵フィーリングが損なわれるおそれがあった。そこで、操舵ハンドルの操舵力に応じてエンジン出力を制御する操舵力検出装置を小型滑走艇に設けることも考えられるが、この場合、操舵力検出装置のケースの加工精度を良好にし、操舵力の精度のよい検出が行えるようにしたいという新たな課題が生じる。   However, in the above-described conventional personal watercraft, the engine output automatically increases when the steering angle of the steering wheel reaches a predetermined value. Therefore, it is possible to arbitrarily adjust the degree of increase in engine output due to the operation of the steering wheel. could not. Therefore, the steering feeling may be impaired. Therefore, it is conceivable to provide a small planing boat with a steering force detection device that controls the engine output in accordance with the steering force of the steering handle. In this case, however, the processing accuracy of the case of the steering force detection device is improved, and the steering force is reduced. A new problem arises that it is desired to perform detection with high accuracy.

本発明は、前述した問題を解決するためになされたもので、その目的は、操舵ハンドルの操舵力を精度よく検出することのできる乗物用操舵ハンドルの操舵力検出装置を提供することである。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a steering force detection device for a vehicle steering wheel that can accurately detect the steering force of the steering wheel.

前述した目的を達成するため、本発明にかかる乗物用操舵ハンドルの操舵力検出装置の構成上の特徴は、操舵ハンドルに連結され操舵ハンドルの操作に応じて回転する操舵軸の近傍に、受圧部を備えた一対の操舵力検出部を互いに離間した状態で設置するとともに、操舵ハンドルまたは操舵軸に、操舵ハンドルをそれぞれ異なる方向に最大操舵角度回転操作したときに一対の操舵力検出部のうちの対応する操舵力検出部の受圧部をそれぞれ押圧する押圧部を設け、押圧部からの押圧による受圧部の受圧状態によって、操舵ハンドルの操舵力を検出する乗物用操舵ハンドルの操舵力検出装置であって、受圧部のそれぞれの受圧方向が、一対の操舵力検出部の離間方向に対して直交し、かつ同方向になるように、一対の操舵力検出部を設置したことにある。   In order to achieve the above-described object, the structural feature of the steering force detecting device for a vehicle steering wheel according to the present invention is characterized in that a pressure receiving portion is provided in the vicinity of a steering shaft connected to the steering wheel and rotating in accordance with the operation of the steering wheel. Of the pair of steering force detectors when the steering handle is rotated to the steering handle or the steering shaft in different directions at the maximum steering angle. A steering force detection device for a vehicle steering wheel is provided with a pressing portion that presses each pressure receiving portion of a corresponding steering force detection portion, and detects the steering force of the steering wheel according to the pressure receiving state of the pressure receiving portion by the pressure from the pressing portion. Therefore, the pair of steering force detectors are installed so that the pressure receiving directions of the pressure receivers are orthogonal to and in the same direction as the separation directions of the pair of steering force detectors. Located in.

このように構成した本発明に係る乗物用操舵ハンドルの操舵力検出装置では、一対の操舵力検出部を離間させて設け、操舵ハンドルを一方向または他方向に最大操舵角度回転操作したときに、操舵軸に設けられた押圧部が、対応する操舵力検出部の受圧部に接触して操舵ハンドルの操舵力をその操舵力検出部が検出する。このため、操舵力検出部が操舵力を検出したときに、エンジンの出力が上昇するように制御することにより乗物が低速走行するときの操舵フィーリングを向上させることができる。   In the steering force detection device for a vehicle steering handle according to the present invention configured as described above, a pair of steering force detection units are provided apart from each other, and when the steering handle is rotated in the maximum steering angle in one direction or the other direction, The pressing portion provided on the steering shaft comes into contact with the pressure receiving portion of the corresponding steering force detecting portion, and the steering force detecting portion detects the steering force of the steering handle. For this reason, when the steering force detection unit detects the steering force, the steering feeling when the vehicle travels at a low speed can be improved by controlling the output of the engine to increase.

また、操舵力検出部が検出した操舵力の大きさに応じてエンジン出力を制御することもでき、これによって、一層操舵フィーリングの向上が可能になる。なお、この場合の乗物としては、水ジェット推進艇等の小型滑走艇があげられる。また、車両に搭載された各種機器の制御のために前記操舵力検出装置を使用する場合、その車両としては、自動二輪車、自動車、雪上車等の各種の乗物があげられる。   Further, it is possible to control the engine output according to the magnitude of the steering force detected by the steering force detection unit, thereby further improving the steering feeling. A vehicle in this case is a small planing boat such as a water jet propulsion boat. Moreover, when using the said steering force detection apparatus for control of the various apparatuses mounted in the vehicle, as the vehicle, various vehicles, such as a motorcycle, a motor vehicle, and a snow vehicle, are mention | raise | lifted.

また、この乗物用操舵ハンドルの操舵力検出装置では、最大操舵角度以下の角度で操舵ハンドルが回転操作されても、その回転操作によっては、エンジンは変動しないため、最大操舵角度以下の角度での回転操作では、通常の運転操作を行うことができる。さらに、受圧部のそれぞれの受圧方向が、一対の操舵力検出部の離間方向に対して直交し、かつ同方向になるように、一対の操舵力検出部が設置されるため、一対の操舵力検出部を収容ケースに収容する場合には、その収容ケースの製造が容易になる。すなわち、操舵力検出部を収容する凹部の位置や角度等の加工精度を良好にし易くなり、これによって、操舵力検出部の検出精度もよくなる。   Further, in this steering force detection device for a vehicle steering wheel, even if the steering wheel is rotated at an angle less than the maximum steering angle, the engine does not change depending on the rotation operation. In the rotation operation, a normal driving operation can be performed. Furthermore, since the pair of steering force detection units are installed so that the pressure receiving directions of the pressure receiving units are orthogonal to and in the same direction as the separation direction of the pair of steering force detection units, In the case where the detection unit is housed in the housing case, the housing case can be easily manufactured. That is, it becomes easy to improve the processing accuracy such as the position and angle of the concave portion that accommodates the steering force detection unit, thereby improving the detection accuracy of the steering force detection unit.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置の他の構成上の特徴は、一対の操舵力検出部が、それぞれ押圧部からの押圧による受圧部の受圧状態を検出する受圧検出部を備えており、受圧部を受圧部組付用孔を備えた受圧部ケースに収容するとともに、受圧検出部を、受圧検出部組付用孔を備えた検出部ケースに収容し、受圧部と受圧検出部とを接触させた状態で、受圧部ケースと検出部ケースとを組み付けて固定したことにある。   In addition, another structural feature of the steering force detection device for a vehicle steering wheel according to the present invention is that a pair of steering force detection units respectively detect a pressure receiving state of the pressure receiving unit due to pressing from the pressing unit. The pressure receiving portion is housed in a pressure receiving portion case having a pressure receiving portion assembly hole, and the pressure receiving detection portion is housed in a detection portion case having a pressure receiving detection portion assembly hole, and the pressure receiving portion and The pressure receiving part case and the detection part case are assembled and fixed in a state where the pressure receiving detection part is in contact.

これによると、組み付けられて一体化した受圧部ケースと検出部ケースとに対して、受圧部と受圧検出部とを強固に支持させることができるため、操舵ハンドルの操舵力を受圧部を介して受圧検出部に安定的に伝達できる。   According to this, since the pressure receiving portion and the pressure receiving detection portion can be firmly supported with respect to the pressure receiving portion case and the detection portion case that are assembled and integrated, the steering force of the steering handle is passed through the pressure receiving portion. It can be stably transmitted to the pressure receiving detector.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、受圧部が、受圧部ケースにおける押圧部に対向する面から一部が進退可能な状態で突出した受圧部材と、受圧部材に対して受圧方向に移動可能でかつ一定の距離以上離間することを規制された状態で設置されたばね座部材と、予め初期荷重が付加されて所定の長さに収縮した状態で受圧部材とばね座部材との間に設置されたばね部材とを備えており、押圧部からの押圧力を受圧部材が受け、その受圧をばね部材およびばね座部材を介して受圧検出部に伝達するようにしたことにある。   Further, another structural feature of the steering force detecting device for a vehicle steering wheel according to the present invention is that the pressure receiving portion protrudes from a surface of the pressure receiving portion case facing the pressing portion in a state in which the pressure receiving portion can advance and retreat. The pressure receiving member, the spring seat member that is movable in the pressure receiving direction with respect to the pressure receiving member and that is regulated to be separated by a certain distance or more, and contracted to a predetermined length by applying an initial load in advance. And a spring member installed between the pressure receiving member and the spring seat member. The pressure receiving member receives the pressing force from the pressing portion, and the pressure receiving member receives the pressure receiving force through the spring member and the spring seat member. It is to communicate.

これによると、ばね部材が予め付加された初期荷重によって収縮した状態で受圧部材とばね座部材との間に設置されているため、受圧部材が押圧部を介して受ける操舵ハンドルの操舵力が、ばね部材に予め付加された初期荷重に達するまでは、受圧部ケースに対して受圧部材が変位しなくなる。これによって、操舵力を検出するために必要な操舵角度が殆ど不要になり、通常の操舵を行うための操舵角度を充分に確保することができる。   According to this, since the spring member is installed between the pressure receiving member and the spring seat member in a contracted state due to the initial load applied in advance, the steering force of the steering handle received by the pressure receiving member via the pressing portion is Until the initial load previously applied to the spring member is reached, the pressure receiving member is not displaced with respect to the pressure receiving case. As a result, the steering angle necessary for detecting the steering force becomes almost unnecessary, and a sufficient steering angle for normal steering can be secured.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、受圧検出部をそれぞれ電気回路基板に接続するとともに、検出部ケースに受圧検出部を収容する２個の受圧検出部組付用孔と、電気回路基板を収容する基板収容凹部とを形成し、２個の受圧検出部組付用孔と基板収容凹部とにおける受圧検出部および電気回路基板のそれぞれの取り付け用開口を、受圧部の受圧方向に対して直交し、かつ同方向に向くように形成したことにある。   Still another structural feature of the steering force detecting device for a vehicle steering wheel according to the present invention is that two pressure receiving detectors are connected to the electric circuit board, and the pressure receiving detecting portion is housed in the detecting portion case. Each of the pressure receiving detection part and the electric circuit board in the two pressure receiving detection part assembling holes and the board receiving recesses are formed. The attachment opening is formed so as to be orthogonal to and in the same direction as the pressure receiving direction of the pressure receiving portion.

これによると、２個の受圧検出部と電気回路基板とを接続して一体化し、これを２個の受圧検出部組付用孔と基板収容凹部とを備えた一体からなる検出部ケースに収容できるため、２個の受圧検出部と電気回路基板との検出部ケースへの組付けが容易になるとともに組付性（収まり）が良くなる。また、検出部ケースにおける受圧検出部の取り付け用開口と電気回路基板の取り付け用開口とを同方向に向けて形成しているため、一体化した２個の受圧検出部と電気回路基板とをそのまま同方向から検出部ケース内に入れることができ、２個の受圧検出部と電気回路基板との検出部ケースへの取り付けがさらに容易になる。また、検出部ケースにおける受圧検出部と電気回路基板との取り付け用開口を受圧部の受圧方向に対して直交する方向に向けて形成しているため、２個の受圧検出部と電気回路基板とが受圧方向に対してがたつかないようにして検出部ケースに取り付けることができる。   According to this, two pressure receiving detection parts and an electric circuit board are connected and integrated, and this is accommodated in the detection part case which consists of two pressure receiving detection part assembling holes and a board | substrate accommodation recessed part. Therefore, it is easy to assemble the two pressure receiving detection units and the electric circuit board to the detection unit case, and the assembling property (containment) is improved. In addition, since the opening for mounting the pressure receiving detector and the opening for mounting the electric circuit board are formed in the same direction in the detector case, the two integrated pressure receiving detectors and the electric circuit board can be used as they are. It can be put in the detection unit case from the same direction, and the attachment of the two pressure receiving detection units and the electric circuit board to the detection unit case is further facilitated. In addition, since the opening for mounting the pressure receiving detection unit and the electric circuit board in the detection unit case is formed in a direction orthogonal to the pressure receiving direction of the pressure receiving unit, the two pressure receiving detection units and the electric circuit board Can be attached to the detector case so as not to rattle in the pressure receiving direction.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、検出部ケースの受圧検出部組付用孔と受圧部ケースの受圧部組付用孔とにガイド筒を掛け渡して取り付け、ガイド筒内における検出部ケース側部分に受圧検出部を取り付け、ガイド筒内における受圧部ケース側部分に受圧部を取り付けたことにある。   Still another structural feature of the steering force detection device for a vehicle steering handle according to the present invention is that the guide is provided in the pressure receiving detection unit assembly hole of the detection unit case and the pressure reception unit assembly hole of the pressure reception unit case. The cylinder is stretched over and attached, the pressure receiving detection part is attached to the detection part case side part in the guide cylinder, and the pressure reception part is attached to the pressure reception part case side part in the guide cylinder.

これによると、受圧検出部と受圧部とを精度よく同軸的に設置することができる。すなわち、別部材からなる検出部ケースと受圧部ケースとを組み付けて、検出部ケースの受圧検出部組付用孔に受圧検出部を収容し、受圧部ケースの受圧部組付用孔に受圧部を収容する場合、受圧検出部と受圧部とを同軸的に設置することは難しい。しかしながら、このガイド筒を用いることによって、受圧検出部と受圧部とを精度よく同軸的に設置することができる。また、これによって、検出部ケースと受圧部ケースとの組み付け精度も向上する。この結果、押圧部を介して受圧部に伝達される操舵ハンドルの操舵力が、受圧部から受圧検出部に真っ直ぐかかるようになり、操舵力の検出精度が向上する。   According to this, a pressure receiving detection part and a pressure receiving part can be installed coaxially accurately. That is, the detection unit case and the pressure receiving unit case made of different members are assembled, the pressure receiving detection unit is accommodated in the pressure receiving detection unit mounting hole of the detection unit case, and the pressure receiving unit is received in the pressure receiving unit mounting hole of the pressure receiving unit case When accommodating the pressure receiving portion, it is difficult to install the pressure receiving detection portion and the pressure receiving portion coaxially. However, by using this guide tube, the pressure receiving detection portion and the pressure receiving portion can be accurately and coaxially installed. This also improves the assembly accuracy of the detection unit case and the pressure receiving unit case. As a result, the steering force of the steering handle transmitted to the pressure receiving portion via the pressing portion is applied directly from the pressure receiving portion to the pressure receiving detection portion, and the detection accuracy of the steering force is improved.

また、この場合、受圧検出部組付用孔における受圧検出部の取り付け用開口の幅寸法を、受圧検出部組付用孔の直径よりも小さく設定することができる。これによると、ガイド筒を受圧検出部組付用孔から抜け止めした状態でガイド筒内に受圧検出部を取り付けることができるため、検出部ケースに対しても受圧検出部を精度よく位置決めして固定することができる。また、検出部ケースに、受圧検出部とガイド筒とを組付ける際には、受圧検出部を取り付け用開口から受圧検出部組付用孔内に設置したのちに、ガイド筒を受圧検出部組付用孔における受圧部ケースと対向する開口から挿入し、その内部に受圧検出部を挿入させることにより容易に組付けができる。   In this case, the width dimension of the opening for mounting the pressure receiving detection portion in the pressure receiving detection portion mounting hole can be set smaller than the diameter of the pressure receiving detection portion mounting hole. According to this, since the pressure receiving detection part can be mounted in the guide cylinder in a state in which the guide cylinder is prevented from coming off from the pressure receiving detection part assembling hole, the pressure receiving detection part is also accurately positioned with respect to the detection part case. Can be fixed. Also, when assembling the pressure receiving detector and the guide tube to the detector case, after installing the pressure receiving detector from the mounting opening into the pressure receiving detector assembly hole, the guide tube is assembled to the pressure receiving detector assembly. It can be easily assembled by inserting from the opening facing the pressure receiving part case in the attachment hole, and inserting the pressure receiving detection part therein.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、ガイド筒の内壁面における受圧検出部が取り付けられた部分および受圧部が取り付けられた部分のうちの少なくとも一方に、ガイド筒の軸方向に沿ったリブを、ガイド筒と一体的に形成したことにある。   Still another structural feature of the steering force detecting device for a vehicle steering handle according to the present invention is that a portion of the inner wall surface of the guide cylinder to which the pressure receiving detection portion is attached and a portion to which the pressure receiving portion is attached. At least one of the ribs along the axial direction of the guide cylinder is formed integrally with the guide cylinder.

これによると、ガイド筒内に取り付けられる受圧検出部または受圧部が、がたつくことを防止できる。また、この場合のリブは１個だけ形成してもよいし、複数個設けてもよい。リブを複数個形成する場合には、ガイド筒の内壁面の円周に沿って一定間隔を保つようにして各リブを形成する。これによって、ガイド筒内に取り付けられる受圧検出部または受圧部の位置がガイド筒内の所定側に偏ることを防止でき、受圧検出部または受圧部をガイド筒内の中心部に位置させることができる。   According to this, it can prevent that the pressure receiving detection part or pressure receiving part attached in a guide cylinder rattles. In this case, only one rib or a plurality of ribs may be provided. When a plurality of ribs are formed, each rib is formed so as to maintain a constant interval along the circumference of the inner wall surface of the guide cylinder. Accordingly, it is possible to prevent the position of the pressure receiving detection unit or the pressure receiving unit attached in the guide cylinder from being biased to a predetermined side in the guide cylinder, and the pressure receiving detection unit or the pressure receiving unit can be positioned at the center of the guide cylinder. .

また、この場合、ガイド筒内に受圧検出部または受圧部が取り付けられたときに、リブがガイド筒の内壁面側に変位できるようにすることができる。これによると、ガイド筒内に受圧検出部または受圧部を取り付ける際に、リブが削り取られて、その削り屑がガイド筒内に溜まることがなくなる。この結果、受圧検出部と受圧部との間に削り屑が入り込んで操舵力の検出精度が低下することを防止できる。また、リブの変位は、ガイド筒の内壁面におけるリブの側部にリブの一部が入り込める溝部を設けたり、リブを弾性や可撓性を有する材料で構成したりすることによって行うことができる。   In this case, the rib can be displaced toward the inner wall surface of the guide cylinder when the pressure receiving detection section or the pressure receiving section is attached to the guide cylinder. According to this, when attaching a pressure receiving detection part or a pressure receiving part in a guide cylinder, a rib is shaved off and the shavings will not accumulate in a guide cylinder. As a result, it is possible to prevent shavings from entering between the pressure receiving detector and the pressure receiving portion and lowering the detection accuracy of the steering force. Further, the rib can be displaced by providing a groove part into which a part of the rib can enter in the side part of the rib on the inner wall surface of the guide tube, or by configuring the rib with a material having elasticity or flexibility. .

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、検出部ケースと受圧部ケースとの組付け部と、ガイド筒の外壁面における組付け部に対応する部分との間をシール部材でシールしたことにある。これによると、検出部ケースと受圧部ケースとの組付け部（他の部材を介さずに検出部ケースと受圧部ケースとを直接組付ける場合は接合部）を、密閉することができる。このため、本発明に係る乗物を小型滑走艇等の水上で使用する乗物とした場合には、ガイド筒内への水の浸入を防止でき、乗物を自動二輪車等の陸上で使用する乗物とした場合には、ガイド筒内への塵埃や雨水の浸入を防止できる。   Still another structural feature of the steering force detecting device for a vehicle steering handle according to the present invention corresponds to the assembled portion of the detecting portion case and the pressure receiving portion case, and the assembled portion on the outer wall surface of the guide tube. This is because the space between the parts to be sealed is sealed with a seal member. According to this, the assembly part of the detection part case and the pressure receiving part case (when the detection part case and the pressure reception part case are directly assembled without using other members) can be sealed. For this reason, when the vehicle according to the present invention is a vehicle used on the water of a small planing boat, water can be prevented from entering the guide cylinder, and the vehicle is a vehicle used on land such as a motorcycle. In this case, it is possible to prevent dust and rainwater from entering the guide tube.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、検出部ケースと受圧部ケースとのそれぞれの組付け面を、受圧部の受圧方向に直交する平面に形成したことにある。これによると、受圧検出部と受圧部との位置精度を高めることが容易になるとともに、受圧検出部と受圧部とを同軸的に設置することが容易になる。   Further, another structural feature of the steering force detecting device for a vehicle steering wheel according to the present invention is that the respective mounting surfaces of the detecting portion case and the pressure receiving portion case are planes orthogonal to the pressure receiving direction of the pressure receiving portion. It is in forming. According to this, it becomes easy to improve the positional accuracy of the pressure receiving detection part and the pressure receiving part, and it becomes easy to install the pressure receiving detection part and the pressure receiving part coaxially.

また、本発明にかかる乗物用操舵ハンドルの操舵力検出装置のさらに他の構成上の特徴は、検出部ケースと受圧部ケースとに、受圧部の受圧方向に平行するボルト孔を設け、ボルト孔にボルトを取り付けることにより、検出部ケースと受圧部ケースとを固定したことにある。これによると、簡単な構造で検出部ケースと受圧部ケースとを確実に固定することができる。また、検出部ケースと受圧部ケースにおける受圧部の受圧方向には、受圧検出部と受圧部とを同軸的に設置するための開口などが設けられており、この開口等とボルト孔の方向を一致させるため、ボルト孔の加工が容易になる。   Still another structural feature of the steering force detecting device for a vehicle steering wheel according to the present invention is that a bolt hole parallel to the pressure receiving direction of the pressure receiving portion is provided in the detection portion case and the pressure receiving portion case, and the bolt hole This is because the detection unit case and the pressure receiving unit case are fixed by attaching bolts to the base plate. Accordingly, the detection unit case and the pressure receiving unit case can be reliably fixed with a simple structure. Further, in the pressure receiving direction of the pressure receiving portion in the detection portion case and the pressure receiving portion case, an opening or the like for coaxially installing the pressure receiving detection portion and the pressure receiving portion is provided, and the direction of this opening and the bolt hole is set. Since they match, the bolt hole can be easily processed.

以下、本発明の一実施形態を図面を用いて説明する。図１および図２は、本発明に係る乗物用操舵ハンドルの操舵力検出装置を備えた小型滑走艇Ａを示している。この小型滑走艇Ａでは、船体１０がデッキ１０ａとハル１０ｂで構成されており、その船体１０の上部における中央よりもやや前部側部分に操舵ハンドル１１が設けられ、船体１０の上部における中央部にシート１２が設けられている。そして、船体１０内の底部における前部側部分には燃料を収容するための燃料タンク１３が設置され、船体１０内の底部における中央部にエンジン１４が設置されている。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a personal watercraft A provided with a steering force detecting device for a vehicle steering wheel according to the present invention. In this small planing boat A, the hull 10 is composed of a deck 10 a and a hull 10 b, a steering handle 11 is provided at a portion slightly ahead of the center in the upper part of the hull 10, and the central part in the upper part of the hull 10. A sheet 12 is provided. A fuel tank 13 for storing fuel is installed at the front side portion at the bottom of the hull 10, and an engine 14 is installed at the center of the bottom of the hull 10.

また、船体１０の後端部における船体１０の幅方向の中央部（中心線Ｌで示した部分）には、推進機１５が設置されており、この推進機１５はインペラ軸１５ａを介してエンジン１４に連結されている。そして、推進機１５の後端部には、プシュ・プルワイヤ１６ａおよびステアリングアーム１６ｂ等（図４参照）を介して操舵ハンドル１１に連結されたステアリングノズル１６が取り付けられている。このステアリングノズル１６は、操舵ハンドル１１の操作に応じて、後部側を左右に移動させることにより、小型滑走艇Ａの進行方向を左右に変更させる。また、エンジン１４には、燃料タンク１３から供給される燃料と、空気との混合気をエンジン１４に送り込む吸気装置１７と、エンジン１４から排出される排気ガスを船体１０の後端部から外部に放出する排気装置１８とが接続されている。   In addition, a propulsion unit 15 is installed at the center of the hull 10 in the width direction (portion indicated by the center line L) at the rear end of the hull 10, and the propulsion unit 15 is engineed via an impeller shaft 15 a. 14. A steering nozzle 16 connected to the steering handle 11 is attached to the rear end portion of the propulsion unit 15 via a push / pull wire 16a and a steering arm 16b (see FIG. 4). The steering nozzle 16 changes the traveling direction of the personal watercraft A to the left and right by moving the rear side to the left and right according to the operation of the steering handle 11. In addition, the engine 14 includes an intake device 17 that sends an air-fuel mixture supplied from the fuel tank 13 and air to the engine 14, and exhaust gas discharged from the engine 14 from the rear end of the hull 10 to the outside. An exhaust device 18 for discharging is connected.

エンジン１４は、２サイクル３気筒エンジンからなっており、吸気口から燃料と空気との混合気を取り込み、排気口から排気ガスを排出する。その際、吸気口からエンジン１４内に供給される混合気はエンジン１４が備える点火装置の点火によって爆発し、この爆発によって、エンジン１４内に設けられたピストンが上下に往復移動する。そして、そのピストンの往復移動によってクランク軸１４ａが回転駆動される。このクランク軸１４ａはインペラ軸１５ａに連結されており、回転力をインペラ軸１５ａに伝達してインペラ軸１５ａを回転駆動させる。   The engine 14 is a two-cycle, three-cylinder engine, and takes in a mixture of fuel and air from an intake port and discharges exhaust gas from an exhaust port. At that time, the air-fuel mixture supplied from the intake port into the engine 14 explodes due to ignition of an ignition device provided in the engine 14, and the piston provided in the engine 14 reciprocates up and down due to the explosion. And the crankshaft 14a is rotationally driven by the reciprocating movement of the piston. The crankshaft 14a is connected to the impeller shaft 15a and transmits rotational force to the impeller shaft 15a to drive the impeller shaft 15a to rotate.

また、インペラ軸１５ａの後端部は、推進機１５内に配置されたインペラに連結されており、このインペラの回転によって、小型滑走艇Ａに推進力が生じる。すなわち、推進機１５は、船体１０の底部に開口する水導入口と船尾に開口する水噴射口とを備えており、水導入口から導入される海水をインペラの回転により水噴射口から噴射させることにより小型滑走艇Ａに推進力を生じさせる。   Further, the rear end portion of the impeller shaft 15a is connected to an impeller disposed in the propulsion unit 15, and a propulsive force is generated in the personal watercraft A by the rotation of the impeller. That is, the propulsion device 15 includes a water introduction port that opens to the bottom of the hull 10 and a water injection port that opens to the stern, and causes the seawater introduced from the water introduction port to be injected from the water injection port by the rotation of the impeller. Thus, a propulsive force is generated in the personal watercraft A.

吸気装置１７は、エンジン１４に接続された吸気管１７ａや、吸気管１７ａの上流端に接続されたスロットルボディ等で構成されている。そして、船外の空気を吸引し、その空気の流量を、スロットルボディに設けられたスロットルバルブ（図１１参照）１９を開閉操作することにより調節して、エンジン１４に供給する。また、その際、エンジン１４に供給される空気に、燃料供給装置（図示せず）を介して燃料タンク１３から供給される燃料を混合させる。   The intake device 17 includes an intake pipe 17a connected to the engine 14, a throttle body connected to the upstream end of the intake pipe 17a, and the like. Then, the air outside the ship is sucked, and the flow rate of the air is adjusted by opening and closing a throttle valve (see FIG. 11) 19 provided in the throttle body, and supplied to the engine 14. At that time, the fuel supplied from the fuel tank 13 is mixed with the air supplied to the engine 14 via a fuel supply device (not shown).

排気装置１８は、エンジン１４に接続された屈曲した管からなる排気管１８ａと、排気管１８ａの後端部に接続されたタンク状のウォーターロックおよびウォーターロックの後部に接続された排気管（図示せず）とで構成されている。排気管１８ａは、エンジン１４の各気筒における排気口から延びて集合したのちに、ウォーターロックに向かって延びている。また、ウォーターロックの後部上面からは、排気管が後方に向って延びており、この排気管は、一旦上方に延びたのちに下方後部に延びて、下流端が船体１０の後端下部に開口している。   The exhaust device 18 includes a bent exhaust pipe 18a connected to the engine 14, a tank-shaped water lock connected to the rear end of the exhaust pipe 18a, and an exhaust pipe connected to the rear of the water lock (see FIG. (Not shown). The exhaust pipe 18a extends from the exhaust port in each cylinder of the engine 14 and then gathers, and then extends toward the water lock. Further, an exhaust pipe extends rearward from the upper surface of the rear part of the water lock. The exhaust pipe extends upward and then extends to the lower rear part, and the downstream end opens to the lower rear end of the hull 10. is doing.

また、操舵ハンドル１１のグリップ１１ａ近傍には、軸部によって回転可能に支持されグリップ１１ａの周面に対して進退可能なスロットルレバー１９ａが設けられており、このスロットルレバー１９ａの操作に応じて、スロットルバルブ１９が開閉する。そして、船体１０内における操舵ハンドル１１の下方には、図３および図４に示したように、本発明に係る操舵力検出装置２０が設けられている。なお、図１および図３では、理解し易くするため、船体１０内に設置された操舵力検出装置２０を実線で示している。   Further, in the vicinity of the grip 11a of the steering handle 11, there is provided a throttle lever 19a that is rotatably supported by a shaft portion and can be moved back and forth with respect to the peripheral surface of the grip 11a. According to the operation of the throttle lever 19a, The throttle valve 19 opens and closes. A steering force detection device 20 according to the present invention is provided below the steering handle 11 in the hull 10 as shown in FIGS. In FIG. 1 and FIG. 3, the steering force detection device 20 installed in the hull 10 is indicated by a solid line for easy understanding.

操舵力検出装置２０は、操舵ハンドル１１の中央部に連結されて略垂直方向に延び、操舵ハンドル１１の操作に応じて回転する操舵軸２１に取り付けられた押圧部材２２と、操舵軸２１を回転可能に支持する円筒状の操舵軸受部２３に固定され、操舵軸２１が所定角度回転したときに押圧部材２２に接触し押圧部材２２から受ける操舵力を検出する操舵力検出部ユニット２４とで構成されている。押圧部材２２は、操舵軸２１の外周面に固定されたリング状の固定部２２ａと、固定部２２ａの両側からそれぞれ斜め後方に向って突出した水平部と水平部の前端縁部から下方に延びた垂直部とからなるＬ形の一対の押圧片２２ｂ，２２ｃとで構成されている。   The steering force detection device 20 is connected to the central portion of the steering handle 11 and extends in a substantially vertical direction, and rotates the steering shaft 21 with a pressing member 22 attached to the steering shaft 21 that rotates in response to the operation of the steering handle 11. A steering force detection unit unit 24 that is fixed to a cylindrical steering bearing portion 23 that is supported so as to contact the pressing member 22 and detect the steering force received from the pressing member 22 when the steering shaft 21 rotates a predetermined angle. Has been. The pressing member 22 extends downward from a ring-shaped fixing portion 22a fixed to the outer peripheral surface of the steering shaft 21, a horizontal portion protruding obliquely rearward from both sides of the fixing portion 22a, and a front end edge portion of the horizontal portion. It comprises a pair of L-shaped pressing pieces 22b, 22c consisting of a vertical part.

この押圧部材２２は、操舵軸２１を中心として左右対称になるように設置されている。そして、押圧片２２ｂの垂直部は、操舵ハンドル１１を上方から見た状態で時計回り方向に最大操舵角回転操作したときに、中心線Ｌに直交する方向に位置するように形成され、押圧片２２ｃの垂直部は、操舵ハンドル１１を上方から見た状態で反時計回り方向に最大操舵角回転操作したときに、中心線Ｌに直交する方向に位置するように形成されている。   The pressing member 22 is installed so as to be bilaterally symmetric about the steering shaft 21. The vertical portion of the pressing piece 22b is formed so as to be positioned in a direction orthogonal to the center line L when the steering wheel 11 is viewed from above when the maximum steering angle is rotated clockwise. The vertical portion 22c is formed so as to be positioned in a direction orthogonal to the center line L when the steering wheel 11 is rotated from the top to the maximum steering angle in the counterclockwise direction.

操舵力検出部ユニット２４は、操舵軸受部２３の外周面に固定された取付用プレート２４ａと、取付用プレート２４ａの上面にボルト（図示せず）によって固定された検出部ケース２５と、ボルト２６ａによって取付用プレート２４ａの上面に固定されるとともに、ボルト（図５参照）２６ｂによって検出部ケース２５の後端部における左右両端にそれぞれ固定された一対の受圧部ケース２７ａ，２７ｂとを備えている。そして、取付用プレート２４ａ、検出部ケース２５および一対の受圧部ケース２７ａ，２７ｂの内部に形成される凹部に、図５に示した一対の操舵力検出部３０ａ，３０ｂと、電気回路基板３１とが取り付けられている。図５は、操舵力検出部３０ａ，３０ｂや電気回路基板３１を、取付用プレート２４ａ側から見た下面を示している。   The steering force detection unit 24 includes a mounting plate 24a fixed to the outer peripheral surface of the steering bearing 23, a detection unit case 25 fixed to the upper surface of the mounting plate 24a by a bolt (not shown), and a bolt 26a. Is fixed to the upper surface of the mounting plate 24a, and a pair of pressure receiving case 27a, 27b fixed to the left and right ends of the rear end of the detection case 25 by bolts (see FIG. 5) 26b. . A pair of steering force detectors 30a and 30b and an electric circuit board 31 shown in FIG. 5 are formed in the recesses formed in the mounting plate 24a, the detector case 25, and the pair of pressure receiver cases 27a and 27b. Is attached. FIG. 5 shows the lower surface of the steering force detectors 30a, 30b and the electric circuit board 31 as viewed from the mounting plate 24a side.

検出部ケース２５は、図６に示したように、取付用プレート２４ａに対向する部分（図６の手前側部分であり、検出部ケース２５の下面）が一対の操舵力検出部３０ａ，３０ｂの前部側部分および電気回路基板３１を取り付けるための取付用開口２８に形成されている。そして、検出部ケース２５の内部における左右両側部分がそれぞれ操舵力検出部３０ａ，３０ｂの前部側部分を取り付けるための本発明に係る受圧検出部組付用孔としての取付用孔２５ａ，２５ｂに形成され、検出部ケース２５の内部における中央部が基板収容凹部２５ｃに形成されている。   As shown in FIG. 6, the detection unit case 25 has a portion facing the mounting plate 24a (the front side portion in FIG. 6 and the lower surface of the detection unit case 25) of the pair of steering force detection units 30a and 30b. It is formed in the mounting opening 28 for mounting the front side portion and the electric circuit board 31. The left and right side portions in the detection unit case 25 are respectively attached to mounting holes 25a and 25b as pressure receiving detection unit assembly holes according to the present invention for mounting the front side portions of the steering force detection units 30a and 30b. The center part inside the detection part case 25 is formed in the board | substrate accommodation recessed part 25c.

取付用孔２５ａ，２５ｂと、基板収容凹部２５ｃとは検出部ケース２５の内部で連通するように形成されている。また、取付用孔２５ａ，２５ｂの後部（図６では上部）は、それぞれ取付用孔２５ａ，２５ｂを受圧部ケース２７ａ，２７ｂ側に連通させるための接続用開口２８ａ，２８ｂに形成されている。この接続用開口２８ａ，２８ｂは取付用開口２８と直交するように形成されている。そして、基板収容凹部２５ｃを形成する壁部のうちの前壁の一方側に配線を３１ａを基板収容凹部２５ｃ内から外部に通すための切欠き部２８ｃが形成されている。また、検出部ケース２５の後面における接続用開口２８ａ，２８ｂの周囲には、ボルト２６ｂを取り付けるための複数のボルト孔２８ｄが取付用孔２５ａ，２５ｂと平行して形成されている。   The mounting holes 25 a and 25 b and the substrate housing recess 25 c are formed so as to communicate with each other inside the detection unit case 25. Further, rear portions (upper portions in FIG. 6) of the mounting holes 25a and 25b are formed in connection openings 28a and 28b for connecting the mounting holes 25a and 25b to the pressure receiving portion cases 27a and 27b, respectively. The connection openings 28 a and 28 b are formed so as to be orthogonal to the attachment opening 28. A cutout portion 28c is formed on one side of the front wall of the wall portion forming the substrate housing recess 25c for passing the wiring 31a from the inside of the substrate housing recess 25c to the outside. A plurality of bolt holes 28d for attaching the bolts 26b are formed in parallel to the attachment holes 25a and 25b around the connection openings 28a and 28b on the rear surface of the detection unit case 25.

受圧部ケース２７ａ，２７ｂは、左右対称の形状に形成されており、ともに操舵力検出部３０ａ，３０ｂの後部側部分を取り付けるための取付用孔２９（受圧部ケース２７ｂの取付用孔２９は図示せず。）を備えている。この受圧部ケース２７ａ，２７ｂは左右対称に形成され、取付用孔２５ａ，２５ｂおよび取付用孔２９に取り付けられる操舵力検出部３０ａ，３０ｂは同一構造になっているため、以下、受圧部ケース２７ａと操舵力検出部３０ａとの構成について説明し、受圧部ケース２７ｂと操舵力検出部３０ｂとの構成についての説明は省略する。   The pressure receiving part cases 27a and 27b are formed in symmetrical shapes, and both are mounting holes 29 for attaching the rear side portions of the steering force detecting parts 30a and 30b (the mounting holes 29 of the pressure receiving part case 27b are shown in the figure). Not shown.) The pressure receiving part cases 27a and 27b are formed symmetrically, and the steering force detecting parts 30a and 30b attached to the mounting holes 25a and 25b and the mounting hole 29 have the same structure. The configuration of the steering force detector 30a will be described, and the description of the configuration of the pressure receiver case 27b and the steering force detector 30b will be omitted.

図５に示したように、受圧部ケース２７ａに設けられた取付用孔２９の前端部は、検出部ケース２５の接続用開口２８ａよりもやや大きな直径に形成され接続用開口２８ａに連通する接続用開口２９ａに形成されており、接続用開口２９ａの前端部は検出部ケース２５側に向って広がったテーパ部２９ｂに形成されている。また、取付用孔２９の後端部は、細径の挿通孔２９ｃに形成されている。そして、この受圧部ケース２７ａの底部には、ボルト２６ａを通すためのボルト孔２９ｄが形成され、受圧部ケース２７ａの前面における取付用孔２９の周囲には、ボルト２６ｂを取り付けるための複数のボルト孔２９ｅが取付用孔２９と平行して形成されている。   As shown in FIG. 5, the front end portion of the mounting hole 29 provided in the pressure receiving case 27a is formed to have a diameter slightly larger than the connection opening 28a of the detection unit case 25 and communicates with the connection opening 28a. The front end of the connection opening 29a is formed in a tapered portion 29b that widens toward the detection unit case 25 side. The rear end portion of the mounting hole 29 is formed in a small diameter insertion hole 29c. A bolt hole 29d for passing the bolt 26a is formed at the bottom of the pressure receiving part case 27a, and a plurality of bolts for attaching the bolt 26b around the mounting hole 29 on the front surface of the pressure receiving part case 27a. A hole 29 e is formed in parallel with the mounting hole 29.

このボルト孔２９ｅは検出部ケース２５のボルト孔２８ｄと連通しており、ボルト孔２８ｄと同数形成されている。なお、取付用孔２９は、取付用孔２５ａと同軸的に形成されている。また、ボルト孔２９ｄおよびボルト孔２９ｄに取り付けられるボルト２６ａは、取付用孔２９および取付用孔２５ａと直交するように設定される。さらに、検出部ケース２５の後面と受圧部ケース２７ａの前面とは、取付用孔２９および取付用孔２５ａと直交するように設定される。   The bolt holes 29e communicate with the bolt holes 28d of the detection unit case 25, and are formed in the same number as the bolt holes 28d. The attachment hole 29 is formed coaxially with the attachment hole 25a. The bolt hole 29d and the bolt 26a attached to the bolt hole 29d are set so as to be orthogonal to the attachment hole 29 and the attachment hole 25a. Furthermore, the rear surface of the detection unit case 25 and the front surface of the pressure receiving unit case 27a are set to be orthogonal to the mounting hole 29 and the mounting hole 25a.

操舵力検出部３０ａは、取付用孔２５ａの後部側部分と取付用孔２９の前部側部分との間に掛け渡された状態で設置された略円筒状のガイド筒３２と、ガイド筒３２内の前部側部分に取り付けられた受圧検出部３３と、ガイド筒３２内の後部側部分に取り付けられた受圧部３４と、受圧検出部３３と受圧部３４との間に設置されたピン３５とで構成されている。   The steering force detection unit 30a includes a substantially cylindrical guide tube 32 installed in a state of being spanned between the rear portion of the attachment hole 25a and the front portion of the attachment hole 29, and the guide tube 32. The pressure receiving detection part 33 attached to the front side part in the inside, the pressure receiving part 34 attached to the rear side part in the guide cylinder 32, and the pin 35 installed between the pressure receiving detection part 33 and the pressure receiving part 34 It consists of and.

ガイド筒３２は、図７および図８に示したように、薄肉の周壁で形成された前部収容部３２ａと、厚肉の周壁で形成され内径が前部収容部３２ａの内径と略等しく設定された後部収容部３２ｂと、ガイド筒３２内における前部収容部３２ａと後部収容部３２ｂとの間に形成され中央部が穴部３２ｃに形成された仕切壁３２ｄとで構成されている。そして、後部収容部３２ｂの内周面には、円周方向に一定間隔（この場合、１２０度間隔）で３個のリブ３６が軸方向に沿って形成されている。このリブ３６は、図９に示したように、後部収容部３２ｂの内周面から中心軸に対して斜めの方向に延びる突起で構成されている。   As shown in FIGS. 7 and 8, the guide cylinder 32 has a front housing portion 32a formed with a thin peripheral wall and an inner diameter formed with a thick peripheral wall substantially equal to the inner diameter of the front housing portion 32a. The rear housing portion 32b is formed between the front housing portion 32a and the rear housing portion 32b in the guide tube 32, and a partition wall 32d having a central portion formed in the hole portion 32c. Three ribs 36 are formed along the axial direction on the inner peripheral surface of the rear housing portion 32b at regular intervals in the circumferential direction (in this case, intervals of 120 degrees). As shown in FIG. 9, the rib 36 is formed by a protrusion extending in an oblique direction with respect to the central axis from the inner peripheral surface of the rear housing portion 32 b.

そして、後部収容部３２ｂの内周面と、リブ３６の先端部と後部収容部３２ｂの中心軸とを結ぶ線の延長線とが交わる部分に、断面形状が略半円状の溝部３６ａがリブ３６に沿って設けられている。このため、リブ３６の先端側部分を後部収容部３２ｂの内周面側に押し付けると、リブ３６の先端部分は撓んで、溝部３６ａ内に入っていく。また、前部収容部３２ａの内周面にも、リブ３６および溝部３６ａと同様のリブ３７と溝部３７ａとが形成されている。このリブ３７と溝部３７ａとの円周方向に沿った配置は、リブ３６と溝部３６ａとの配置と逆になっている。したがって、図８におけるＡ−Ａ断面は、図９と同様に表れる。このガイド筒３２は、前部収容部３２ａを接続用開口２８ａ内に挿入させ、後部収容部３２ｂを接続用開口２９ａ内に挿入させることにより、取付用孔２９および取付用孔２５ａと同軸的に取り付けられる。   A groove portion 36a having a substantially semicircular cross-sectional shape is formed at a portion where the inner peripheral surface of the rear housing portion 32b intersects with an extension line of a line connecting the tip of the rib 36 and the central axis of the rear housing portion 32b 36 is provided. For this reason, when the front end portion of the rib 36 is pressed against the inner peripheral surface of the rear housing portion 32b, the front end portion of the rib 36 is bent and enters the groove 36a. Further, ribs 37 and groove portions 37a similar to the ribs 36 and the groove portions 36a are also formed on the inner peripheral surface of the front housing portion 32a. The arrangement of the rib 37 and the groove 37a along the circumferential direction is opposite to the arrangement of the rib 36 and the groove 36a. Therefore, the AA cross section in FIG. 8 appears similarly to FIG. The guide cylinder 32 is coaxial with the mounting hole 29 and the mounting hole 25a by inserting the front housing portion 32a into the connection opening 28a and inserting the rear housing portion 32b into the connection opening 29a. It is attached.

受圧検出部３３は、円筒状のケース３３ａ内に、棒状の磁性体３８を軸方向を揃えて設置し、磁性体３８の外周面に、コイル３９が巻き付けられたボビン３９ａを取り付けて構成されている。また、ケース３３ａの内面後端部とボビン３９ａとの間には、ケース３３ａとコイル３９との間をシールするためのＯリング３３ｂが取り付けられている。そして、受圧検出部３３は、磁性体３８の後端部をケース３３ａの後端部から突出させて、ガイド筒３２の穴部３２ｃに向けた状態で前部収容部３２ａ内にガイド筒３２と同軸的に取り付けられている。また、コイル３９に接続された導線３９ｂの端部は、基板収容凹部２５ｃ内に延びて電気回路基板３１に接続されている。磁性体３８は、荷重が加えられることによって磁気特性が変化する性能を有し、コイル３９は、磁性体３８の磁気特性の変化を電圧変化に変換する。   The pressure receiving detection unit 33 is configured by installing a rod-shaped magnetic body 38 in the cylindrical case 33 a so as to be aligned in the axial direction, and attaching a bobbin 39 a around which a coil 39 is wound around the outer peripheral surface of the magnetic body 38. Yes. An O-ring 33b for sealing between the case 33a and the coil 39 is attached between the rear end portion of the inner surface of the case 33a and the bobbin 39a. And the pressure receiving detection part 33 protrudes the rear-end part of the magnetic body 38 from the rear-end part of the case 33a, and it has the guide cylinder 32 in the front accommodating part 32a in the state which faced the hole 32c of the guide cylinder 32. Coaxially mounted. Further, the end portion of the conducting wire 39 b connected to the coil 39 extends into the substrate housing recess 25 c and is connected to the electric circuit substrate 31. The magnetic body 38 has the performance of changing the magnetic characteristics when a load is applied, and the coil 39 converts the change in the magnetic characteristics of the magnetic body 38 into a voltage change.

受圧部３４は、後端部が受圧部ケース２７ａの挿通孔２９ｃから突出するように設置された受圧部材４１と、受圧部材４１に固定されたボルト４２と、ボルト４２の軸部４２ａにそれぞれ取り付けられた本発明のばね座部材としてのリング状のワッシャープレーン４３と、本発明のばね部材としての複数の皿ばね４４と、後端部にフランジ部４５ａが形成された円筒状のカラー４５とで構成されている。受圧部材４１は、前部側の大径部４１ａと後部側の細径部４１ｂとで構成され受圧部ケース２７ａ内で前後に移動可能に設置されている。   The pressure receiving portion 34 is attached to the pressure receiving member 41 installed so that the rear end portion protrudes from the insertion hole 29c of the pressure receiving portion case 27a, the bolt 42 fixed to the pressure receiving member 41, and the shaft portion 42a of the bolt 42, respectively. A ring-shaped washer plane 43 as a spring seat member of the present invention, a plurality of disc springs 44 as a spring member of the present invention, and a cylindrical collar 45 having a flange portion 45a formed at the rear end. It is configured. The pressure receiving member 41 includes a large-diameter portion 41a on the front side and a small-diameter portion 41b on the rear side, and is installed so as to be movable back and forth within the pressure-receiving portion case 27a.

大径部４１ａの外周面にはベアリング４６が取り付けられ、細径部４１ｂの外周面にはＯリング４７が取り付けられて、受圧部材４１は、受圧部ケース２７ａとの間を密閉された状態で受圧部ケース２７ａに対してスムーズに移動できるように設置されている。また、大径部４１ａの後端面と受圧部ケース２７ａの内壁との間には、ウェーブワッシャー４８が取り付けられている。そして、ボルト４２の軸部４２ａにワッシャープレーン４３と、皿ばね４４を通すとともに、軸部４２ａと、ワッシャープレーン４３および皿ばね４４との間にカラー４５を通し、その状態のボルト４２を受圧部材４１の大径部４１ａに固定することにより受圧部３４が構成されている。   A bearing 46 is attached to the outer peripheral surface of the large-diameter portion 41a, an O-ring 47 is attached to the outer peripheral surface of the small-diameter portion 41b, and the pressure-receiving member 41 is sealed between the pressure-receiving portion case 27a. It is installed so that it can move smoothly with respect to the pressure receiving part case 27a. A wave washer 48 is attached between the rear end surface of the large diameter portion 41a and the inner wall of the pressure receiving case 27a. Then, the washer plane 43 and the disc spring 44 are passed through the shaft portion 42 a of the bolt 42, and the collar 45 is passed between the shaft portion 42 a, the washer plane 43 and the disc spring 44, and the bolt 42 in this state is received by the pressure receiving member. The pressure receiving portion 34 is configured by being fixed to the large diameter portion 41 a of 41.

この場合、皿ばね４４に所定の初期荷重がかかるようにしてボルト４２を受圧部材４１側に締め付けておく。これによって、受圧部材４１の後端部に前方に向かう力が加わっても、その力が初期荷重以下の場合には、受圧部材４１は移動せず、受圧部材４１にかかる力が初期荷重以上になって、初めて皿ばね４４が収縮して受圧部材４１が移動する。この結果、受圧部材４１の移動範囲を微小にすることができる。   In this case, the bolt 42 is fastened to the pressure receiving member 41 side so that a predetermined initial load is applied to the disc spring 44. As a result, even if a forward force is applied to the rear end portion of the pressure receiving member 41, if the force is equal to or less than the initial load, the pressure receiving member 41 does not move, and the force applied to the pressure receiving member 41 exceeds the initial load. Only then, the disc spring 44 contracts and the pressure receiving member 41 moves. As a result, the movement range of the pressure receiving member 41 can be made minute.

また、受圧検出部３３と受圧部３４との間に設置されるピン３５は、ボルト４２の頭部４２ｂを覆った状態でワッシャープレーン４３の前面に接触するように配置されたピン本体３５ａと、ピン本体３５ａの前面中央から前方に向かって突出し、ガイド筒３２の穴部３２ｃを通って受圧検出部３３の磁性体３８に接触する突部３５ｂとで構成されている。また、ピン本体３５ａの内部における後面とボルト４２の頭部４２ｂとの間には隙間が設けられている。   Further, the pin 35 installed between the pressure receiving detection unit 33 and the pressure receiving unit 34 has a pin main body 35a disposed so as to contact the front surface of the washer plane 43 in a state of covering the head 42b of the bolt 42, and The protrusion 35b protrudes forward from the center of the front surface of the pin main body 35a and passes through the hole 32c of the guide tube 32 and contacts the magnetic body 38 of the pressure receiving detection portion 33. Further, a gap is provided between the rear surface inside the pin main body 35 a and the head 42 b of the bolt 42.

したがって、受圧部材４１に前記初期荷重以上の荷重がかかったときには、皿ばね４４が収縮して、受圧部材４１、ボルト４２およびカラー４５が前方に移動する。この際、ワッシャープレーン４３は、ピン３５によって移動することを規制されて静止状態を維持する。また、受圧部３４およびピン３５は、受圧検出部３３と同軸的に設置される。このため、受圧部材４１にかかった荷重は、皿ばね４４、ワッシャープレーン４３およびピン３５を介して受圧検出部３３に直線的に伝達される。   Therefore, when a load greater than the initial load is applied to the pressure receiving member 41, the disc spring 44 contracts, and the pressure receiving member 41, the bolt 42, and the collar 45 move forward. At this time, the washer plane 43 is restricted from moving by the pins 35 and is kept stationary. The pressure receiving part 34 and the pin 35 are installed coaxially with the pressure receiving detection part 33. For this reason, the load applied to the pressure receiving member 41 is linearly transmitted to the pressure receiving detection unit 33 via the disc spring 44, the washer plane 43 and the pin 35.

また、その際、受圧部材４１にかかる荷重が所定値に達して、受圧部材４１の後面と受圧部ケース２７ａの後面とが一致して面一になるまで受圧部材４１が変位すると、受圧部材４１を押圧する押圧部材２２の押圧片２２ｂが受圧部ケース２７ａに接触する。これによって、それ以上の荷重が受圧部材４１にかかることがなくなり、荷重によって受圧検出部３３が破損することが防止される。また、検出部ケース２５と受圧部ケース２７ａ，２７ｂとの境界面には、それぞれ板状のシール材４９が設けられている。そして、受圧部ケース２７ａ（，２７ｂ）、ガイド筒３２およびシール材４９で囲まれるテーパ部２９ｂにシール用のＯリング４９ａが設けられている。また、検出部ケース２５と受圧部ケース２７ａ，２７ｂとの間や他の部分の隙間等は、樹脂材料を充填して固化させることにより密閉されている。   At this time, if the load applied to the pressure receiving member 41 reaches a predetermined value and the pressure receiving member 41 is displaced until the rear surface of the pressure receiving member 41 and the rear surface of the pressure receiving portion case 27a are flush with each other, the pressure receiving member 41 is displaced. The pressing piece 22b of the pressing member 22 that presses the pressure contacts the pressure receiving case 27a. As a result, no further load is applied to the pressure receiving member 41, and the pressure receiving detection unit 33 is prevented from being damaged by the load. A plate-shaped sealing material 49 is provided on the boundary surface between the detection unit case 25 and the pressure receiving unit cases 27a and 27b. An O-ring 49 a for sealing is provided on the tapered portion 29 b surrounded by the pressure receiving case 27 a (27 b), the guide cylinder 32 and the sealing material 49. Further, the gap between the detection unit case 25 and the pressure receiving unit cases 27a and 27b and other portions are sealed by filling with a resin material and solidifying.

また、このように構成された操舵力検出部３０ａ，３０ｂが接続される電気回路基板３１には、図１０に示した回路が形成されている。すなわち、交流発信回路５１が、操舵力検出部３０ａ，３０ｂのそれぞれの受圧検出部３３に接続され受圧検出部３３のコイル３９に交流電流が流される。また、操舵力検出部３０ａの受圧検出部３３には可変抵抗器５２が接続され、操舵力検出部３０ｂの受圧検出部３３にはブリッジ固定抵抗器５３が接続されている。   Further, the circuit shown in FIG. 10 is formed on the electric circuit board 31 to which the steering force detection units 30a and 30b configured as described above are connected. That is, the AC transmission circuit 51 is connected to the pressure receiving detection unit 33 of each of the steering force detection units 30 a and 30 b, and an AC current flows through the coil 39 of the pressure receiving detection unit 33. In addition, a variable resistor 52 is connected to the pressure receiving detection unit 33 of the steering force detection unit 30a, and a bridge fixed resistor 53 is connected to the pressure reception detection unit 33 of the steering force detection unit 30b.

そして、操舵力検出部３０ａ，３０ｂの各受圧検出部３３の出力電圧の差が交流差動増幅回路５４によって増幅されたのちに、全波整流回路５５によって整流される。さらに、低域通過フィルタ５６によって低周波成分が抽出され、直流増幅回路５７で増幅された信号電圧が端子５８から出力される。この端子５８は、配線３１ａを介してコントローラ６０に接続されており、このようにして、操舵力検出部３０ａ，３０ｂによって検出された荷重に対応する信号電圧が、端子５８からコントローラ６０に出力される。   The difference between the output voltages of the pressure receiving detectors 33 of the steering force detectors 30 a and 30 b is amplified by the AC differential amplifier circuit 54 and then rectified by the full wave rectifier circuit 55. Further, the low-frequency component is extracted by the low-pass filter 56, and the signal voltage amplified by the DC amplification circuit 57 is output from the terminal 58. The terminal 58 is connected to the controller 60 via the wiring 31a. In this way, a signal voltage corresponding to the load detected by the steering force detection units 30a and 30b is output from the terminal 58 to the controller 60. The

コントローラ６０は、操舵力検出装置２０から操舵力を示す信号電圧を受けると、その信号電圧が所定値よりも大きいときに、図１１に示したサーボモータ６１を作動させて、エンジン１４を駆動させる制御を行う。サーボモータ６１は、モータ６２の回転を減速機６３によって減速し、アーム６４に伝達することによって、スロットルレバー１９ａとスロットルバルブ１９とを連結するスロットルワイヤ１９ｂを移動させるように構成されている。これによって、スロットルレバー１９ａを操作することなくスロットルバルブ１９を開けることができる。   When the controller 60 receives the signal voltage indicating the steering force from the steering force detector 20, when the signal voltage is larger than a predetermined value, the controller 60 operates the servo motor 61 shown in FIG. Take control. The servo motor 61 is configured to move the throttle wire 19b that connects the throttle lever 19a and the throttle valve 19 by decelerating the rotation of the motor 62 by the speed reducer 63 and transmitting it to the arm 64. As a result, the throttle valve 19 can be opened without operating the throttle lever 19a.

また、アーム６４には、アーム６４の揺動角度を検出するフィードバックポテンショメータ６５が設けられている。そしてコントローラ６０は、フィードバックポテンショメータ６５が検出するアーム６４の揺動角度と、操舵力検出装置２０からの信号電圧に基づいて設定されるアーム６４の目標角度とが一致するまで、モータ６２を作動させる。すなわち、このコントローラ６０による制御によれば、操舵力検出装置２０からの出力（運転者が操舵ハンドル１１に加えた操舵力）の大きさに対応する開度でスロットルバルブ１９が開き、エンジン１４の出力が制御される。   The arm 64 is provided with a feedback potentiometer 65 that detects the swing angle of the arm 64. Then, the controller 60 operates the motor 62 until the swing angle of the arm 64 detected by the feedback potentiometer 65 coincides with the target angle of the arm 64 set based on the signal voltage from the steering force detection device 20. . That is, according to the control by the controller 60, the throttle valve 19 is opened at an opening corresponding to the magnitude of the output from the steering force detection device 20 (the steering force applied by the driver to the steering handle 11), and the engine 14 The output is controlled.

また、エンジン１４にはクランク軸１４ａの回転数を検出するためのエンジン回転数センサ６６が設けられており、エンジン回転数センサ６６が検出するエンジン回転数のデータ信号は、コントローラ６０に送信される。また、コントローラ６０やサーボモータ６１には、バッテリー６７が接続されており、バッテリー６７の給電によってコントローラ６０等は作動する。   The engine 14 is provided with an engine speed sensor 66 for detecting the speed of the crankshaft 14 a, and an engine speed data signal detected by the engine speed sensor 66 is transmitted to the controller 60. . Further, a battery 67 is connected to the controller 60 and the servo motor 61, and the controller 60 and the like are operated by the power supply of the battery 67.

以上の構成において、運転者が小型滑走艇Ａを操縦する際には、まず、操舵ハンドル１１の近傍に設置されたスイッチ（図示せず）をオンにして小型滑走艇Ａを走行可能な状態にする。ついで、操舵ハンドル１１のグリップ１１ａを握るとともに、スロットルレバー１９ａに指を引っ掛けてスロットルレバー１９ａをグリップ１１ａ側に移動させる。これによって、スロットルワイヤ１９ｂが引っ張られてスロットルバルブ１９が操作に応じて開く。この場合、スロットルレバー１９ａをグリップ１１ａ側に近づけるほどスロットル開度が大きくなって小型滑走艇Ａは高速走行し、スロットルレバー１９ａをグリップ１１ａから遠ざけるほどスロットル開度が小さくなって小型滑走艇Ａは低速走行する。   In the above configuration, when the driver steers the personal watercraft A, first, a switch (not shown) installed in the vicinity of the steering handle 11 is turned on so that the personal watercraft A can travel. To do. Next, the grip 11a of the steering handle 11 is grasped, and a finger is hooked on the throttle lever 19a to move the throttle lever 19a to the grip 11a side. As a result, the throttle wire 19b is pulled and the throttle valve 19 is opened according to the operation. In this case, as the throttle lever 19a is closer to the grip 11a, the throttle opening becomes larger and the small planing boat A runs at a higher speed, and as the throttle lever 19a is moved away from the grip 11a, the throttle opening becomes smaller and the small planing boat A is Drive at low speed.

また、スロットルレバー１９ａの操作により走行速度を調節しながら、操舵ハンドル１１を回転操作することにより、小型滑走艇Ａは、操舵ハンドル１１の操作に応じた方向に進路を変化させながら走行する。この場合、操舵ハンドル１１の操作に応じてプシュ・プルワイヤ１６ａが移動してステアリングノズル１６を揺動させることにより走行方向の変更が可能になる。   Further, by rotating the steering handle 11 while adjusting the traveling speed by operating the throttle lever 19a, the personal watercraft A travels while changing the course in the direction corresponding to the operation of the steering handle 11. In this case, the push / pull wire 16a is moved in accordance with the operation of the steering handle 11 and the steering nozzle 16 is swung to change the traveling direction.

また、小型滑走艇Ａを接岸させる場合等に、走行速度を下げるためにスロットルレバー１９ａを離してグリップ１１ａから最も遠い位置にすると、エンジン１４はアイドリング状態になる。この状態のときには、操舵ハンドル１１を時計回りまたは反時計回りのどちらかに、最大操舵角度まで回転させて、押圧部材２２の押圧片２２ｂ，２２ｃのどちらか一方を対応する操舵力検出部３０ａ，３０ｂの受圧部３４に押し付ける。   Further, when the small planing boat A is berthed or the like, if the throttle lever 19a is released to the farthest position from the grip 11a in order to reduce the traveling speed, the engine 14 is in an idling state. In this state, the steering handle 11 is rotated clockwise or counterclockwise to the maximum steering angle, and one of the pressing pieces 22b and 22c of the pressing member 22 is associated with the corresponding steering force detecting unit 30a, It presses against the pressure receiving part 34 of 30b.

これによって、操舵力検出装置２０から操舵力を示す信号電圧が、コントローラ６０に送信され、コントローラ６０は、その信号電圧の値に応じてサーボモータ６１を作動させて、エンジン１４を駆動させる。この結果、小型滑走艇Ａは加速して、操舵ハンドル１１による操舵性が向上する。これによって、操舵ハンドル１１の操作とスロットルレバー１９ａを微調整する操作との面倒な操作をすることなく、操舵ハンドル１１の簡単な操作だけで、小型滑走艇Ａを低速で目的地に到達させることができる。   Accordingly, a signal voltage indicating the steering force is transmitted from the steering force detection device 20 to the controller 60, and the controller 60 operates the servo motor 61 according to the value of the signal voltage to drive the engine 14. As a result, the personal watercraft A is accelerated and the steering performance by the steering handle 11 is improved. Thus, the small planing boat A can be made to reach the destination at a low speed only by a simple operation of the steering handle 11 without the troublesome operation of the steering handle 11 and the operation of finely adjusting the throttle lever 19a. Can do.

このように、本実施形態に係る小型滑走艇Ａが備える操舵力検出装置２０によると、操舵ハンドル１１の操作だけで低速走行時の操舵性を向上させることができる。また、この操舵力検出装置２０では、皿ばね４４が予め付加された初期荷重によって収縮した状態で受圧部材４１とワッシャープレーン４３との間に設置されている。このため、受圧部材４１が押圧部材２２を介して受ける操舵ハンドル１１の操舵力が、皿ばね４４に予め付加された初期荷重に達するまでは、受圧部材４１が変位しなくなる。これによって、操舵力を検出するために必要な操舵角度が殆ど不要になり、通常の操舵を行うための操舵角度を充分に確保することができる。   Thus, according to the steering force detection device 20 provided in the personal watercraft A according to the present embodiment, the steering performance during low-speed traveling can be improved only by operating the steering handle 11. Further, in the steering force detection device 20, the disc spring 44 is installed between the pressure receiving member 41 and the washer plane 43 in a state in which the disc spring 44 is contracted by a preloaded initial load. For this reason, the pressure receiving member 41 is not displaced until the steering force of the steering handle 11 received by the pressure receiving member 41 via the pressing member 22 reaches an initial load previously applied to the disc spring 44. As a result, the steering angle necessary for detecting the steering force becomes almost unnecessary, and a sufficient steering angle for normal steering can be secured.

また、この操舵力検出装置２０によると、一対の受圧検出部３３と電気回路基板３１とを接続して一体化した状態で、取付用開口２８から検出部ケース２５に入れて固定することができるようになるため、一対の受圧検出部３３と電気回路基板３１との検出部ケース２５への組付けが容易になる。すなわち、検出部ケース２５に、受圧検出部３３とガイド筒３２とを組付ける際には、一対の受圧検出部３３を電気回路基板３１に接続し、その状態の受圧検出部３３と電気回路基板３１とを、取付用開口２８から検出部ケース２５内に設置する。   Further, according to the steering force detection device 20, the pair of pressure receiving detection units 33 and the electric circuit board 31 can be connected and integrated into the detection unit case 25 through the mounting opening 28 and fixed. Therefore, it becomes easy to assemble the pair of pressure receiving detectors 33 and the electric circuit board 31 to the detector case 25. That is, when the pressure receiving detector 33 and the guide cylinder 32 are assembled to the detector case 25, the pair of pressure receiving detectors 33 are connected to the electric circuit board 31, and the pressure receiving detector 33 and the electric circuit board in that state are connected. 31 is installed in the detection unit case 25 through the mounting opening 28.

そして、ガイド筒３２を接続用開口２８ａ，２８ｂから挿入し、その内部に受圧検出部３３を挿入させることによりガイド筒３２を容易に組付けができる。そして、さらに、その状態のガイド筒３２に、ピン３５と受圧部３４とを取り付け、その周囲に受圧部ケース２７ａ，２７ｂを取り付けることにより操舵力検出部ユニット２４を組付けることができる。この場合、一対の受圧検出部３３と電気回路基板３１とが受圧方向に対してがたつかないようにして検出部ケース２５に取り付けることができる。   The guide cylinder 32 can be easily assembled by inserting the guide cylinder 32 from the connection openings 28a and 28b and inserting the pressure receiving detection portion 33 therein. Further, the steering force detecting unit 24 can be assembled by attaching the pin 35 and the pressure receiving part 34 to the guide cylinder 32 in that state and attaching the pressure receiving part cases 27a and 27b to the periphery thereof. In this case, the pair of pressure receiving detection units 33 and the electric circuit board 31 can be attached to the detection unit case 25 so as not to rattle in the pressure receiving direction.

さらに、ガイド筒３２を介して、受圧検出部３３と受圧部３４とを取り付けているため、検出部ケース２５と受圧部ケース２７ａ，２７ｂとが別部材で構成されていても受圧検出部３３と受圧部３４とを精度よく同軸的に設置することができる。これによって、押圧部材２２を介して受圧部３４に伝達される操舵ハンドル１１の操舵力が、受圧部３４から受圧検出部３３に真っ直ぐかかるようになり、操舵力の検出精度が向上する。   Further, since the pressure receiving detection unit 33 and the pressure receiving unit 34 are attached via the guide tube 32, the pressure receiving detection unit 33 and the detection unit case 25 and the pressure receiving unit cases 27a and 27b are configured as separate members. The pressure receiving part 34 can be coaxially installed with high accuracy. As a result, the steering force of the steering handle 11 transmitted to the pressure receiving unit 34 via the pressing member 22 is applied straight from the pressure receiving unit 34 to the pressure receiving detection unit 33, and the detection accuracy of the steering force is improved.

また、ガイド筒３２の前部収容部３２ａと後部収容部３２ｂの内壁面には、それぞれリブ３６，３７および溝部３６ａ，３７ａが形成されているため、受圧検出部３３および受圧部３４が、がたつくことを防止できる。また、ガイド筒３２内に受圧検出部３３および受圧部３４を取り付ける際に、リブ３６，３７が削り取られて、その削り屑がガイド筒３２内に溜まることがなくなる。この結果、受圧検出部３３と受圧部３４との間に削り屑が入り込んで操舵力の検出精度が低下することを防止できる。   Further, since the ribs 36 and 37 and the grooves 36a and 37a are formed on the inner wall surfaces of the front housing portion 32a and the rear housing portion 32b of the guide tube 32, the pressure receiving detection portion 33 and the pressure receiving portion 34 are rattled. Can be prevented. Further, when the pressure receiving detection unit 33 and the pressure receiving unit 34 are attached in the guide cylinder 32, the ribs 36 and 37 are scraped off and the shavings are not accumulated in the guide cylinder 32. As a result, it is possible to prevent shavings from entering between the pressure receiving detection unit 33 and the pressure receiving unit 34 to reduce the detection accuracy of the steering force.

また、Ｏリング３３ｂ，４７，４９ａ等で対応する各部分をシールしているとともに、各部分の隙間に樹脂材料を充填しているため、操舵力検出部ユニット２４内への水の浸入を防止できる。さらに、検出部ケース２５と受圧部ケース２７ａ，２７ｂとを組付けて、その内部に各部材を収容しているため、受圧検出部３３と受圧部３４との位置精度を高めることが容易になるとともに、受圧検出部３３と受圧部３４とを同軸的に設置することが容易になる。また、検出部ケース２５と受圧部ケース２７ａ，２７ｂとを精度よく製造することができる。   In addition, the corresponding portions are sealed with O-rings 33b, 47, 49a and the like, and the gap between the portions is filled with a resin material, so that water can be prevented from entering the steering force detection unit 24. it can. Furthermore, since the detection unit case 25 and the pressure receiving unit cases 27a and 27b are assembled and each member is accommodated therein, it is easy to increase the positional accuracy of the pressure receiving detection unit 33 and the pressure receiving unit 34. At the same time, it becomes easy to install the pressure receiving detection unit 33 and the pressure receiving unit 34 coaxially. Moreover, the detection unit case 25 and the pressure receiving unit cases 27a and 27b can be manufactured with high accuracy.

本発明に係る操舵力検出装置２０は前述した実施形態に限るものでなく、適宜変更して実施することができる。例えば、検出部ケース２５の取付用孔２５ａ，２５ｂにおける接続用開口２８ａ，２８ｂの幅寸法を、中心側よりも開口側を小さく設定することができる。これによると、ガイド筒３２を取付用孔２５ａ，２５ｂから抜け止めした状態でガイド筒３２内に取り付けることができるため、検出部ケース２５に対しても受圧検出部３３を精度よく位置決めして固定することができる。   The steering force detection device 20 according to the present invention is not limited to the embodiment described above, and can be implemented with appropriate modifications. For example, the width dimension of the connection openings 28a and 28b in the mounting holes 25a and 25b of the detection unit case 25 can be set smaller on the opening side than on the center side. According to this, since the guide tube 32 can be mounted in the guide tube 32 while being prevented from being detached from the mounting holes 25a and 25b, the pressure receiving detection unit 33 is accurately positioned and fixed also to the detection unit case 25. can do.

また、前述した実施形態では、ガイド筒３２の前部収容部３２ａと後部収容部３２ｂとの双方に、それぞれリブ３６，３７および溝部３６ａ，３７ａを形成しているが、このリブと溝部は、前部収容部３２ａまたは後部収容部３２ｂのどちらか一方だけに設けてもよい。さらに、受圧検出部３３に代えて、位置検出等、他の方法で受圧部３４の受圧状態を検出できる検出装置を用いることもできる。また、本発明に係る操舵力検出装置は、前述した小型滑走艇Ａに限らず、自動二輪車、自動車、雪上車等の各種の乗物があげられる。そして、この操舵力検出装置は、これらの乗物に搭載された各種機器の制御のために使用することができる。また、前述した実施形態に係る小型滑走艇Ａの他の部分の構成についても、本発明の技術的範囲内で適宜変更することができる。   Further, in the above-described embodiment, the ribs 36 and 37 and the groove portions 36a and 37a are formed on both the front portion receiving portion 32a and the rear portion receiving portion 32b of the guide tube 32, respectively. You may provide only in either the front part accommodating part 32a or the rear part accommodating part 32b. Furthermore, instead of the pressure receiving detection unit 33, a detection device that can detect the pressure receiving state of the pressure receiving unit 34 by other methods such as position detection can be used. Further, the steering force detection device according to the present invention is not limited to the above-mentioned small planing boat A, but includes various vehicles such as motorcycles, automobiles, and snow vehicles. And this steering force detection apparatus can be used for control of the various apparatuses mounted in these vehicles. Further, the configuration of the other part of the personal watercraft A according to the embodiment described above can be changed as appropriate within the technical scope of the present invention.

本発明の一実施形態に係る小型滑走艇の内部を示した平面図である。It is the top view which showed the inside of the personal watercraft which concerns on one Embodiment of this invention. 図１に示した小型滑走艇の側面図である。It is a side view of the small planing boat shown in FIG. 図１に示した小型滑走艇の要部を拡大して示した平面図である。It is the top view which expanded and showed the principal part of the small planing boat shown in FIG. 小型滑走艇が備える操舵力検出装置を示した分解斜視図である。It is the disassembled perspective view which showed the steering force detection apparatus with which a small planing boat is provided. 操舵力検出部ユニットの内部を下面側から見た状態示した一部断面図である。It is the partial cross section figure which showed the state which looked at the inside of a steering force detection part unit from the lower surface side. 検出部ケースを示した斜視図である。It is the perspective view which showed the detection part case. ガイド筒を示した平面図である。It is the top view which showed the guide cylinder. 図７の８−８断面図である。It is 8-8 sectional drawing of FIG. 図８の９−９断面の一部を示した断面図である。It is sectional drawing which showed a part of 9-9 cross section of FIG. 電気回路基板が備える回路を示したブロック図である。It is the block diagram which showed the circuit with which an electric circuit board | substrate is provided. 操舵力検出装置の検出によってコントローラが制御する各装置を示したブロック図である。It is the block diagram which showed each apparatus which a controller controls by the detection of a steering force detection apparatus.

符号の説明Explanation of symbols

１１…操舵ハンドル、２０…操舵力検出装置、２１…操舵軸、２２…押圧部材、２２ｂ，２２ｃ…押圧片、２４…操舵力検出部ユニット、２５…検出部ケース、２５ａ，２５ｂ，２９…取付用孔、２５ｃ…基板収容凹部、２６ｂ，４２…ボルト、２７ａ，２７ｂ…受圧部ケース、２８…取付用開口、２８ａ，２８ｂ…接続用開口、２９ａ…接続用開口、２９ｃ…挿通孔、３０ａ，３０ｂ…操舵力検出部、３１…電気回路基板、３２…ガイド筒、３２ａ…前部収容部、３２ｂ…後部収容部、３３…受圧検出部、３４…受圧部、３５…ピン、３６，３７…リブ、３６ａ，３７ａ…溝部、４１…受圧部材、４３…ワッシャープレーン、４４…皿ばね、４９ａ…Ｏリング、Ａ…小型滑走艇。
DESCRIPTION OF SYMBOLS 11 ... Steering handle, 20 ... Steering force detection apparatus, 21 ... Steering shaft, 22 ... Pressing member, 22b, 22c ... Pressing piece, 24 ... Steering force detection unit, 25 ... Detection part case, 25a, 25b, 29 ... Installation Hole, 25c ... substrate housing recess, 26b, 42 ... bolt, 27a, 27b ... pressure receiving case, 28 ... mounting opening, 28a, 28b ... connection opening, 29a ... connection opening, 29c ... insertion hole, 30a, 30b ... steering force detection unit 31 ... electric circuit board 32 ... guide cylinder 32a ... front housing part 32b ... rear housing part 33 ... pressure receiving detection part 34 ... pressure receiving part 35 ... pin 36, 37 ... Rib, 36a, 37a ... groove, 41 ... pressure receiving member, 43 ... washer plane, 44 ... disc spring, 49a ... O-ring, A ... small planing boat.

Claims (11)

操舵ハンドルに連結され前記操舵ハンドルの操作に応じて回転する操舵軸の近傍に、受圧部を備えた一対の操舵力検出部を互いに離間した状態で設置するとともに、前記操舵ハンドルまたは前記操舵軸に、前記操舵ハンドルをそれぞれ異なる方向に最大操舵角度回転操作したときに前記一対の操舵力検出部のうちの対応する操舵力検出部の受圧部をそれぞれ押圧する押圧部を設け、前記押圧部からの押圧による前記受圧部の受圧状態によって、前記操舵ハンドルの操舵力を検出する乗物用操舵ハンドルの操舵力検出装置であって、
前記受圧部のそれぞれの受圧方向が、前記一対の操舵力検出部の離間方向に対して直交し、かつ同方向になるように、前記一対の操舵力検出部を設置したことを特徴とする乗物用操舵ハンドルの操舵力検出装置。 A pair of steering force detectors having pressure receiving portions are installed in the vicinity of a steering shaft that is connected to the steering handle and rotates in response to an operation of the steering handle, and is installed on the steering handle or the steering shaft. , Provided with a pressing portion that presses the pressure receiving portion of the corresponding steering force detection portion of the pair of steering force detection portions when the steering handle is rotated to the maximum steering angle in different directions. A steering force detecting device for a vehicle steering wheel for detecting a steering force of the steering wheel according to a pressure receiving state of the pressure receiving portion by pressing,
The vehicle is characterized in that the pair of steering force detectors are installed so that the pressure receiving directions of the pressure receivers are orthogonal to and in the same direction as the separation direction of the pair of steering force detectors. Steering force detection device for a steering wheel. 前記一対の操舵力検出部が、それぞれ前記押圧部からの押圧による前記受圧部の受圧状態を検出する受圧検出部を備えており、前記受圧部を受圧部組付用孔を備えた受圧部ケースに収容するとともに、前記受圧検出部を、受圧検出部組付用孔を備えた検出部ケースに収容し、前記受圧部と前記受圧検出部とを接触させた状態で、前記受圧部ケースと前記検出部ケースとを組み付けて固定した請求項１に記載の乗物用操舵ハンドルの操舵力検出装置。   Each of the pair of steering force detection units includes a pressure receiving detection unit that detects a pressure receiving state of the pressure receiving unit due to pressing from the pressing unit, and the pressure receiving unit case includes a pressure receiving unit assembly hole. And receiving the pressure receiving detection part in a detection part case provided with a pressure receiving detection part assembling hole, and in a state where the pressure receiving part and the pressure receiving detection part are in contact with each other, The steering force detection device for a vehicle steering wheel according to claim 1, wherein the detection unit case is assembled and fixed. 前記受圧部が、前記受圧部ケースにおける前記押圧部に対向する面から一部が進退可能な状態で突出した受圧部材と、前記受圧部材に対して受圧方向に移動可能で、かつ一定の距離以上離間することを規制された状態で設置されたばね座部材と、予め初期荷重が付加されて所定の長さに収縮した状態で前記受圧部材と前記ばね座部材との間に設置されたばね部材とを備えており、前記押圧部からの押圧力を前記受圧部材が受け、その受圧を前記ばね部材および前記ばね座部材を介して前記受圧検出部に伝達するようにした請求項２に記載の乗物用操舵ハンドルの操舵力検出装置。   The pressure receiving part protrudes in a state in which a part of the pressure receiving part case faces the pressing part in the pressure receiving part case so as to be able to advance and retreat, and is movable in a pressure receiving direction with respect to the pressure receiving member, and more than a certain distance A spring seat member installed in a state in which separation is restricted, and a spring member installed between the pressure receiving member and the spring seat member in a state in which an initial load is applied in advance and contracted to a predetermined length. The vehicle for vehicle according to claim 2, further comprising: a pressure receiving member that receives a pressing force from the pressing portion and transmitting the pressure receiving to the pressure receiving detection portion via the spring member and the spring seat member. Steering force detection device for steering wheel. 前記受圧検出部をそれぞれ電気回路基板に接続するとともに、前記検出部ケースに前記受圧検出部を収容する２個の受圧検出部組付用孔と、前記電気回路基板を収容する基板収容凹部とを形成し、前記２個の受圧検出部組付用孔と前記基板収容凹部とにおける前記受圧検出部および前記電気回路基板のそれぞれの取り付け用開口を、前記受圧部の受圧方向に対して直交し、かつ同方向に向くように形成した請求項２または３に記載の乗物用操舵ハンドルの操舵力検出装置。   Each of the pressure receiving detectors is connected to an electric circuit board, and two detection holes for assembling the pressure receiving detectors for receiving the pressure receiving detectors in the detection part case, and a substrate receiving recess for receiving the electric circuit boards, Forming each of the pressure receiving detection part and the mounting opening of the electric circuit board in the two pressure receiving detection part assembling holes and the board housing recess, orthogonal to the pressure receiving direction of the pressure receiving part, The steering force detection device for a vehicle steering wheel according to claim 2 or 3, wherein the steering force detection device is formed so as to face in the same direction. 前記検出部ケースの受圧検出部組付用孔と前記受圧部ケースの受圧部組付用孔とにガイド筒を掛け渡して取り付け、前記ガイド筒内における検出部ケース側部分に前記受圧検出部を取り付け、前記ガイド筒内における受圧部ケース側部分に前記受圧部を取り付けた請求項２ないし４のうちのいずれか一つに記載の乗物用操舵ハンドルの操舵力検出装置。   A guide tube is installed over the pressure receiving detection unit assembly hole of the detection unit case and the pressure reception unit assembly hole of the pressure reception unit case, and the pressure reception detection unit is attached to the side of the detection unit case in the guide cylinder. The steering force detecting device for a steering wheel for a vehicle according to any one of claims 2 to 4, wherein the pressure receiving portion is attached to the pressure receiving portion case side portion in the guide cylinder. 前記受圧検出部組付用孔における前記受圧検出部の取り付け用開口の幅寸法を、前記受圧検出部組付用孔の直径よりも小さく設定した請求項５に記載の乗物用操舵ハンドルの操舵力検出装置。   6. The steering force of the vehicle steering wheel according to claim 5, wherein a width dimension of a mounting opening of the pressure receiving detection unit in the pressure receiving detection unit mounting hole is set smaller than a diameter of the pressure receiving detection unit mounting hole. Detection device. 前記ガイド筒の内壁面における前記受圧検出部が取り付けられた部分および前記受圧部が取り付けられた部分のうちの少なくとも一方に、前記ガイド筒の軸方向に沿ったリブを、前記ガイド筒と一体的に形成した請求項５または６に記載の乗物用操舵ハンドルの操舵力検出装置。   A rib extending along the axial direction of the guide cylinder is integrated with at least one of a part of the inner wall surface of the guide cylinder to which the pressure receiving detection part is attached and a part to which the pressure receiving part is attached. The steering force detecting device for a vehicle steering wheel according to claim 5 or 6, wherein the steering force detecting device is a vehicle steering handle. 前記ガイド筒内に前記受圧検出部または前記受圧部が取り付けられたときに、前記リブが前記ガイド筒の内壁面側に変位できるようにした請求項７に記載の乗物用操舵ハンドルの操舵力検出装置。   The steering force detection of the vehicle steering wheel according to claim 7, wherein the rib can be displaced toward an inner wall surface side of the guide cylinder when the pressure receiving detection section or the pressure receiving section is mounted in the guide cylinder. apparatus. 前記検出部ケースと前記受圧部ケースとの組付け部と、前記ガイド筒の外壁面における前記組付け部に対応する部分との間をシール部材でシールした請求項５ないし８のうちのいずれか一つに記載の乗物用操舵ハンドルの操舵力検出装置。   9. The device according to claim 5, wherein a seal member seals between an assembly portion between the detection unit case and the pressure receiving unit case and a portion corresponding to the assembly portion on the outer wall surface of the guide cylinder. A steering force detection device for a vehicle steering wheel according to one of the above. 前記検出部ケースと前記受圧部ケースとのそれぞれの組付け面を、前記受圧部の受圧方向に直交する平面に形成した請求項２ないし９のうちのいずれか一つに記載の乗物用操舵ハンドルの操舵力検出装置。   The vehicle steering handle according to any one of claims 2 to 9, wherein each of the assembly surfaces of the detection unit case and the pressure receiving unit case is formed on a plane orthogonal to the pressure receiving direction of the pressure receiving unit. Steering force detection device. 前記検出部ケースと前記受圧部ケースとに、前記受圧部の受圧方向に平行するボルト孔を設け、前記ボルト孔にボルトを取り付けることにより、前記検出部ケースと前記受圧部ケースとを固定した請求項２ないし１０のうちのいずれか一つに記載の乗物用操舵ハンドルの操舵力検出装置。
A bolt hole parallel to the pressure receiving direction of the pressure receiving portion is provided in the detection portion case and the pressure receiving portion case, and the detection portion case and the pressure receiving portion case are fixed by attaching a bolt to the bolt hole. Item 11. The steering force detection device for a vehicle steering wheel according to any one of Items 2 to 10.
JP2004189350A 2004-06-07 2004-06-28 Steering force detection device for vehicular steering handlebar Pending JP2006007996A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004189350A JP2006007996A (en) 2004-06-28 2004-06-28 Steering force detection device for vehicular steering handlebar
US11/146,728 US7430466B2 (en) 2004-06-07 2005-06-07 Steering force detection device for steering handle of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004189350A JP2006007996A (en) 2004-06-28 2004-06-28 Steering force detection device for vehicular steering handlebar

Publications (1)

Publication Number Publication Date
JP2006007996A true JP2006007996A (en) 2006-01-12

Family

ID=35775703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004189350A Pending JP2006007996A (en) 2004-06-07 2004-06-28 Steering force detection device for vehicular steering handlebar

Country Status (1)

Country Link
JP (1) JP2006007996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008094256A (en) * 2006-10-12 2008-04-24 Yamaha Marine Co Ltd Water vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008094256A (en) * 2006-10-12 2008-04-24 Yamaha Marine Co Ltd Water vehicle

Similar Documents

Publication Publication Date Title
US7337739B2 (en) Steering-force detection device for steering handle of vehicle
US7430466B2 (en) Steering force detection device for steering handle of vehicle
EP2011728B1 (en) Vehicle having a throttle device
US5879209A (en) Automatic trim control system for jet propelled watercraft
US7381106B2 (en) Watercraft steering assist system
US8491348B2 (en) Lever position sensor
US20120021659A1 (en) Marine vessel propulsion device and marine vessel including the same
US7802530B2 (en) Personal watercraft
JP2014024534A (en) Water jet propulsion boat
US8177592B2 (en) Personal watercraft
US6428372B1 (en) Water jet propulsion unit with retractable rudder
US6776676B2 (en) Personal watercraft
US6709303B2 (en) Internal combustion engine control unit for jet propulsion type watercraft
US9505475B2 (en) Jet propelled watercraft
JP4346512B2 (en) A steering force detection device for a vehicle steering wheel.
JP2006007996A (en) Steering force detection device for vehicular steering handlebar
EP3539861B1 (en) Small boat
US10399656B2 (en) Remote control system of boat propulsion device
JP4691532B2 (en) Vehicle throttle device
CA2553581A1 (en) Jet-propelled watercraft
JP2005345453A (en) Load sensing device and transport equipment using it
JP2013199212A (en) Watercraft
US9694893B2 (en) Enhanced steering
JP4216171B2 (en) Thrust control device for jet propulsion boat
US20240051649A1 (en) Water jet propulsion boat and direction changing device for water jet propulsion boat

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070316

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20090119

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20090127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090708

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090714

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20091215