WO2006008852A1 - Mirror angle detector and outer mirror for vehicle - Google Patents

Mirror angle detector and outer mirror for vehicle Download PDF

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Publication number
WO2006008852A1
WO2006008852A1 PCT/JP2005/003463 JP2005003463W WO2006008852A1 WO 2006008852 A1 WO2006008852 A1 WO 2006008852A1 JP 2005003463 W JP2005003463 W JP 2005003463W WO 2006008852 A1 WO2006008852 A1 WO 2006008852A1
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WO
WIPO (PCT)
Prior art keywords
mirror
mirror angle
detection device
angle detection
holder
Prior art date
Application number
PCT/JP2005/003463
Other languages
French (fr)
Japanese (ja)
Inventor
Hisaya Suzuki
Original Assignee
Murakami Corporation
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 Murakami Corporation filed Critical Murakami Corporation
Publication of WO2006008852A1 publication Critical patent/WO2006008852A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/06Rear-view mirror arrangements mounted on vehicle exterior
    • B60R1/062Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
    • B60R1/07Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
    • B60R1/072Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for adjusting the mirror relative to its housing

Definitions

  • the present invention relates to a mirror angle detection device that detects a tilt angle of a mirror in a vehicle outer mirror and a vehicle outer mirror.
  • Some outer mirrors for vehicles include a mirror angle adjustment device that can adjust a tilt angle of a mirror (hereinafter referred to as "mirror angle”) so that a good rear view can be obtained.
  • mirror angle a tilt angle of a mirror
  • the mirror angle can be adjusted according to the driver's visual recognition position, but it is cumbersome to re-adjust the subtle angle each time the driver changes. It is desirable to be able to reproduce the mirror angle suitable for the driver.
  • a mirror angle detection device is a mirror angle detection device that is mounted on a vehicle outer mirror having a mirror holder that tilts with respect to a base body and detects the tilt angle of the mirror holder.
  • a sensor that is fixed to one of the base part and the mirror holder, and whose detection value changes according to the acting stress, is interposed between the base part and the mirror holder, and one end of the sensor And an elastic member attached to.
  • the relative position (interval) between the base portion and the mirror holder changes.
  • the elastic member interposed between the base portion and the mirror holder expands and contracts, so that the acting stress changes and the detection value changes in the sensor to which one end of the elastic member is attached. .
  • the mirror angle can be detected by associating the tilt angle of the mirror holder with this detection value.
  • the “base portion” is a member whose relative positional relationship with the mirror holder is displaced when the mirror holder is tilted. For example, a frame, a member fixed to the frame (for example, an action) Use housing, etc.), or a cover for housing these.
  • the outer mirror for a vehicle includes an adjustment nut that is attached to the mirror holder side so as to be movable back and forth from the base portion side, and the other end of the elastic member is attached to the adjustment nut. It can be attached.
  • the adjustment nut is advanced and retracted, the elastic member having the other end attached to the adjustment nut expands and contracts.
  • the applied stress changes and the detection value changes.
  • the mirror angle can be detected by associating the tilt angle of the mirror holder with this detected value.
  • the sensor may be a load sensor or a strain gauge.
  • the distance between the base portion and the mirror holder changes.
  • the base and mirror holder Since the elastic member interposed therebetween expands and contracts, in the sensor to which one end of the elastic member is attached, the acting stress changes and the detected value changes. That is, in the load sensor, the magnitude of the detected load (detected value) changes, and in the strain gauge, the magnitude of the output strain (detected value) changes.
  • the detected value force of the sensor can also grasp (detect) the mirror angle.
  • the case where an elastic member is attached to the strain gauge includes the case where a thin plate or the like is interposed between the strain gauge and the elastic member.
  • an outer mirror for a vehicle provided with the mirror angle detection device.
  • the mirror angle detection device and the vehicle outer mirror since the sensor whose detection value changes based on the acting stress is used, the resistance wear, magnetic influence, etc. Thus, the mirror angle at which the output does not change can be detected. In particular, the hysteresis characteristic can be suppressed, and the mirror angle detection accuracy can be improved. In addition, since the sensor (load sensor, strain gauge) itself is small, the degree of freedom in designing the interior of the vehicle mirror can be increased.
  • FIG. 1 is an exploded perspective view showing a structure of a side mirror S M (vehicle outer mirror) in which a mirror angle detection device according to a first embodiment of the present invention is built.
  • FIG. 2 is an exploded perspective view showing the structure of the mirror angle adjusting device of FIG.
  • FIG. 3 is a view showing the operation of the mirror angle detection device, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a cross-sectional view showing a state after the adjustment nut is moved.
  • FIG. 4 is a view showing the operation of the mirror angle detection device according to the second embodiment, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a view of the adjustment nut. It is sectional drawing which shows the state after a movement.
  • FIG. 5 is a diagram showing the operation of a mirror angle detection means according to a modification
  • (a) is an adjustment nut
  • FIG. 4B is a cross-sectional view showing a state before the adjustment nut is moved
  • FIG. 5 is a diagram showing the operation of a mirror angle detection means according to a modification
  • (a) is an adjustment nut
  • FIG. 4B is a cross-sectional view showing a state before the adjustment nut is moved
  • the side mirror SM has a frame SB and a mirror angle adjusting device E fixed to the frame SB in a space formed by the mirror main body M and a cover C (mirror housing).
  • a cover C mirror housing
  • the mirror angle adjusting device E includes a mirror holder 1 that supports a mirror body M, an actuator housing 2 (base portion) that supports the mirror holder 1 in a tiltable manner, and is fixed to a frame SB.
  • the mirror angle detection device 3 (see FIG. 2) and a control device (not shown) are mainly provided.
  • a detection value detected by the mirror angle detection device 3 is stored by a control device (not shown), and a motor 7 described later is driven based on the stored detection value to arbitrarily set the mirror holder 1 Can be tilted to any angle.
  • the force of the actuator housing 2 corresponding to the “base portion” of the present invention is not limited to this.
  • the cover C Any member whose relative positional relationship is displaced by tilting the mirror holder 2 such as the frame SB or a member fixed to the frame SB is included in the base portion.
  • the mirror holder 1 is a part in which a thin plate is formed in a substantially rectangular shape, and a fulcrum part 11 serving as a center of tilting is cut at the tip of a hollow hemisphere at an appropriate position ( It is formed to protrude forward in the shape of a sphere).
  • the actuator housing 2 is divided into a front housing 21 and a rear housing 22, and mainly contains a packing 4, an adjustment nut 5, a worm wheel 6 and a motor 7 respectively. Built-in one by one.
  • the front housing 21 has a double bottom, and a projecting portion 21a projecting rearward is formed at the position of the tilting center of the mirror holder 1 on the rear bottom portion 211.
  • a female thread portion 21c into which a screw N for fixing the mirror holder 1 is screwed is formed on the tip surface of a.
  • a substantially cylindrical pin (screw member) 8 that protrudes rearward is provided on the right side and the lower side of the protruding portion 21a.
  • the pin 8 is formed in a cylindrical shape, and a male screw portion 81 into which the adjustment nut 5 is screwed so as to be able to advance and retreat is formed on the outer peripheral surface (see FIG. 3 (a)).
  • a recess 9 for rotatably supporting the worm wheel 6 is formed around the pin 8, and a rib 21f that prevents the grease from scattering is formed around the recess 9 as shown in FIG.
  • a concave motor mounting portion 21g in which the motor 7 is disposed is formed in the vicinity of the concave portion 9 and the rib 21f.
  • the rear housing 22 is formed with a concave support portion 22a that slidably supports the fulcrum portion 11 of the mirror holder 1, and a flange of the nozzle / kin 4 is formed on the right and lower sides of the support portion 22a.
  • a circular hole 22b is formed to which the portion 41 is engaged and bonded.
  • a circular hole 22c is formed in the bottom wall of the support portion 22a so that the tip of the protruding portion 21a can be inserted therethrough.
  • the fulcrum part 11 of the mirror holder 1 is engaged with the support part 22a, and the pressing member P and the spring member SP having a spherical band shape are attached to the protruding part 21a protruding from the circular hole 22c, and the screw N is attached thereto.
  • the mirror holder 1 is tiltably attached to the actuator housing 2 in a state of being biased by a predetermined biasing force.
  • the mirror angle detection device 3 includes a spring 31 and a load sensor 32 attached to one end of the spring 31.
  • the other end of the spring 31 is fixed to the inner surface side of the bottom wall 51a of the adjusting nut 5 described later.
  • the load sensor 32 is soldered to the board 33, and the board 33 is attached to the bottom 212 on the front side of the front housing 21. That is, the spring 31 is interposed between the bottom wall 5 la of the adjustment nut 5 and the load sensor 32, and expands and contracts as the adjustment nut 5 advances and retreats.
  • the load sensor 32 When the spring 31 is expanded and contracted in accordance with the advancement and retraction of the adjusting nut 5, the restoring force of the spring 31 acts on the load sensor 32, and the load sensor 32 responds to the restoring force (extension amount) of the spring 31. The magnitude of the load detected at 32 also changes.
  • an amplifier (not shown) and peripheral electronic components are mounted on the substrate 33, and these are electrically connected on the substrate 33.
  • the load sensor 32 uses various sensors such as a capacitance type, a piezoelectric type, and a strain gauge. be able to.
  • the packing 4 is for preventing water from entering the actuator housing 2 and is formed of a rubber member that can be expanded and contracted.
  • the front end flange portion 41 of the packing 4 is engaged with the circular hole 22 b of the rear housing 22, and the rear end small diameter portion 42 is engaged with the mirror holder 1.
  • the adjusting nut 5 includes a bottomed cylindrical main body 51 and a fitting recess 12 of the mirror holder 1 protruding rearward from the bottom wall 51a of the main body 51 (see FIG. 3). ) And a spherical pivot portion 52 that is rotatably fitted to the main body portion 51, and five foot portions 53 (only three are shown) projecting forward from the opening end of the main body portion 51.
  • the main body 51 is formed with ribs 51c protruding outward at appropriate positions on the outer peripheral surface thereof.
  • a claw 53a (see FIG. 3) that protrudes inwardly on the inner surface (radially inner surface) and engages with the male screw 81 is formed.
  • the worm wheel 6 includes a substantially cylindrical sliding portion 61 that is rotatably engaged with the recess 9 of the front housing 21, and a substantially cylindrical shape having a larger diameter than the sliding portion 61.
  • the main body 62 is mainly configured.
  • the main body portion 62 is formed with a gear portion 62a that fits with the gear portion 71 of the motor 7 at the front portion of the outer periphery thereof, and a rib 63 that protrudes rearward at the inner peripheral edge of the rear end surface 62b. ing.
  • a groove 64 is formed in the rib 63 so as to communicate in the front-rear direction, and the adjustment nut 5 is connected to the worm wheel 6 by engaging the rib 51c of the adjustment nut 5 with the groove 64. It is movable in the front-rear direction (the direction along the central axis of the worm wheel 6) and is engaged so as not to be relatively rotatable.
  • a gear portion 71 is formed on the outer surface of the rotating shaft 72 for rotationally driving the worm wheel 6.
  • electric power is supplied to the motor 7 via a plug PL inserted from a hole 21h formed in the motor mounting portion 21g of the front housing 21.
  • FIG. 3 for example, when the mirror body M (see FIG. 1) is tilted upward, when the adjustment nut 5 is moved backward via the worm wheel 6 by driving the motor 7 in the lower part, Holder 1 tilts upward.
  • FIG. 3 (a) before tilting the mirror holder 1, Force with ring 31 contracted
  • FIG. 3 (b) when adjusting nut 5 is moved forward to tilt mirror holder 1, spring 31 is extended. As the spring 31 expands and contracts, the restoring force of the spring 31 acts on the load sensor 32, and the magnitude of the load detected by the load sensor 32 also changes.
  • the magnitude of this load is stored by a control device (not shown), and the mirror angle, that is, the position of the adjustment nut 5 is determined by making the magnitude of this load correspond to the mirror angle of the mirror body M.
  • the mirror holder 1 can be tilted to an arbitrary angle based on the stored load. In other words, if the load corresponding to the mirror angle suitable for one driver is stored in the control device, even if the other driver's power error angle is changed, the mirror holder 1 is used until the stored load is reached. By tilting, the mirror angle suitable for one driver, that is, the position of the adjustment nut 5 can be reproduced.
  • the following effects can be obtained in the present embodiment.
  • the mirror angle is detected using the load sensor 32, the mirror angle at which the output does not change due to wear of the resistor, magnetic influence, etc. can be accurately detected as in the past. .
  • the hysteresis characteristic can be suppressed, and the mirror angle detection accuracy is improved.
  • the load sensor 32 itself is small and thin, the degree of freedom of design inside the side mirror SM (see Fig. 1) can be increased. Furthermore, since the load sensor 32 is mounted on the substrate 33 together with peripheral electronic components such as an amplifier, electrical arrangement is facilitated. For this reason, it can be easily installed in the side mirror SM.
  • FIG. 4 is a view showing the operation of the mirror angle detection device according to the second embodiment, where (a) is a sectional view showing a state before the adjustment nut is moved, and (b) is a state after the adjustment nut is moved. It is sectional drawing which shows a state. Since this embodiment is obtained by changing a part of the mirror angle detection device in the first embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
  • the front housing 21 of the second embodiment is provided.
  • the pin 8 formed in the front housing 21 has a point force formed in a bottomed cylindrical shape whose base end portion is closed, which is different from the front housing 21 of the first embodiment.
  • the mirror angle detection device 3A includes a spring 31 and a strain gauge 34 attached to the bottom portion 82 of the pin 8.
  • One end of the spring 31 is attached to the bottom portion 82, and the other end is fixed to the inner surface side of the bottom wall 5la of the adjusting nut 5 described later, as shown in FIG. That is, the spring 31 is interposed between the bottom wall 51a of the adjustment nut 5 and the strain gauge 34, and expands and contracts as the adjustment nut 5 advances and retreats.
  • the strain gauge 34 is attached to the bottom portion 82 of the pin 8 where the restoring force of the spring 31 acts, and thereby detects the strain of the bottom portion 82 of the pin 8.
  • the strain gauge 34 is electrically connected to a substrate 33 on which peripheral electronic components such as an amplifier (not shown) are mounted.
  • this mirror angle detection device when the adjustment nut 5 is moved backward, the mirror holder 1 tilts upward.
  • the force in which the spring 31 is contracted is moved forward as shown in FIG.
  • the spring 31 extends.
  • the restoring force of the spring 31 acts on the bottom of the pin 8 and the bottom 82 is distorted.
  • the resistance value of the strain gauge 34 changes.
  • this resistance value is stored, and this resistance value is associated with the mirror angle of the mirror holder 1, whereby the mirror angle, that is, the adjustment nut 5 is adjusted.
  • the position can be grasped.
  • the same effect as that of the first embodiment can be obtained.
  • the force configured to fix the actuator housing 2 to the frame SB is not limited to this.
  • the actuator housing 2 is attached to the cover C.
  • the load sensor 32 is attached to the inside of the actuator housing 2.
  • the present invention is not limited to this, and in any of the above cases, the load sensor 32 is provided.
  • the mirror holder 1 such as the outside of the actuator housing 2 (for example, the frame SB) or the cover C etc. tilts so that the relative positional relationship with the mirror holder 1 is As long as it is a (variable member), it may be attached to a member of V or misalignment. Specifically, the following modifications can be made.
  • FIG. 5 is a view showing the operation of the mirror angle detecting means according to the modification, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a state after the adjustment nut is moved.
  • FIG. 5 is a view showing the operation of the mirror angle detecting means according to the modification, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a state after the adjustment nut is moved.
  • one end of the spring 31 is attached to the bottom wall 5 la of the adjustment nut 5, and the other end is attached to the load sensor 32 fixed to the front housing 21.
  • Support plate C1 base portion
  • frame SB frame
  • the load sensor 32 soldered to the board 33 is fixed to a member (for example, an actuator housing or the like) fixed to the SB or the cover C), and then one end of the spring 31 is fixed. May be attached to the load sensor 32 and the other end may be directly attached to the mirror holder 1. According to this, the mirror angle detection device can be easily retrofitted to the side mirror SM.
  • the load sensor 32 is attached to the base body side (actuator housing 2), and the other end of the spring 31 attached to the load sensor 32 is attached to the mirror holder 1. Force The mounting positions can be interchanged.
  • the present invention can be applied to a vehicle outer mirror.
  • a mirror angle detection device that detects a tilt angle of a mirror in a vehicle outer mirror, a mirror angle without using a resistor or magnetite. Can be detected.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)

Abstract

A mirror angle detector capable of detecting a mirror angle without using a resistor or a magnet and an outer mirror for a vehicle having the mirror angle detector. The mirror angle detector (3) is installed on the outer mirror for the vehicle having a mirror holder (1) movably tilted relative to a base body part (frame (SB)) and detects the movably tilted angle of the mirror holder (1). The detector is characterized by comprising a sensor (load sensor (32)) fixed to either of the base body part (frame (SB)) and the mirror holder (1) and enabling the detected values to vary according to stresses acting thereon and an elastic member (spring (31)) interposed between the base body part (frame (SB)) and the mirror holder (1) and fitted, at one end, to the sensor.

Description

明 細 書  Specification
ミラー角度検出装置および車両用アウターミラー  Mirror angle detection device and vehicle outer mirror
技術分野  Technical field
[0001] 本発明は、車両用アウターミラーにおいてミラーの傾動角度を検出するミラー角度 検出装置および車両用アウターミラーに関するものである。  The present invention relates to a mirror angle detection device that detects a tilt angle of a mirror in a vehicle outer mirror and a vehicle outer mirror.
背景技術  Background art
[0002] 車両用アウターミラーには、良好な後方視界が得られるようにミラーの傾動角度(以 下、「ミラー角度」という。)を調整することができるミラー角度調整装置を備えたものが ある。このような車両用アウターミラーでは、運転者の視認位置に合わせてミラー角度 を調整することができるが、運転者の交代の都度、微妙な角度を調整し直すのは煩 雑であるため、各運転者に適したミラー角度を再現できるようにしておくことが望まれ る。  [0002] Some outer mirrors for vehicles include a mirror angle adjustment device that can adjust a tilt angle of a mirror (hereinafter referred to as "mirror angle") so that a good rear view can be obtained. . With such a vehicle outer mirror, the mirror angle can be adjusted according to the driver's visual recognition position, but it is cumbersome to re-adjust the subtle angle each time the driver changes. It is desirable to be able to reproduce the mirror angle suitable for the driver.
[0003] 従来、各ミラー角度を再現すベぐミラー角度を検出するためのミラー角度検出装 置が種々提案されている。例えば、抵抗体と、ミラーの変位 (傾動)に合わせて前記 抵抗体上を摺動する摺動接点とを設けたミラー角度検出装置が提案されている。こ れによれば、ミラーの傾動に合わせて摺動接点が移動し、電圧値が変化するので、こ の電圧値を検出することでミラー角度を検出することができる(例えば、特開 2001— 2 94091号公報、段落 0026— 0032、 0041、図 2参照)。また、磁石とホーノレ素子とを 備え、磁石の回転変位によって変化する磁力の強弱でミラー角度を検出する磁気式 ミラー角度検出装置等も知られている。  [0003] Conventionally, various mirror angle detection devices for detecting a mirror angle that reproduces each mirror angle have been proposed. For example, there has been proposed a mirror angle detection device provided with a resistor and a sliding contact that slides on the resistor in accordance with the displacement (tilt) of the mirror. According to this, the sliding contact moves in accordance with the tilting of the mirror and the voltage value changes, so that the mirror angle can be detected by detecting this voltage value (for example, JP-A-2001-2001). 2 94091, paragraphs 0026-0032, 0041, FIG. 2). There are also known magnetic mirror angle detection devices that include a magnet and a Honore element and detect the mirror angle by the strength of the magnetic force that changes due to the rotational displacement of the magnet.
[0004] し力しながら、抵抗体式のミラー角度検出装置では、摺動接点が摺動することで抵 抗体が磨耗するため、出力が変化し、磨耗屑が発生し、または、ノイズが発生したり するという問題があった。また、磁気式ミラー角度検出装置では、ミラー角度を調整す るモータ等の磁気影響で出力が変動し、または、磁石とホール素子の位置に制約が あることで設計自由度が狭められ、あるいは、磁石が高価であることからコストがかか るという問題があった。その他、抵抗体式および磁気式ミラー角度検出装置はともに ヒステリシス特性に留意しなければならな 、と 、う問題があった。 [0005] 前記した問題を解決するため、抵抗体や磁石を用いることなぐミラー角度を検出 することができるミラー角度検出装置および車両用アウターミラーが要望されている。 発明の開示 [0004] However, in the resistor-type mirror angle detection device, the resistance is worn by sliding of the sliding contact, so that the output is changed and wear debris is generated or noise is generated. There was a problem that Also, in the magnetic mirror angle detection device, the output fluctuates due to the magnetic effect of the motor etc. that adjusts the mirror angle, or the position of the magnet and the Hall element is limited, or the design freedom is narrowed, or There was a problem that the magnet was expensive because it was expensive. In addition, both the resistor type and magnetic type mirror angle detection devices have the problem of having to pay attention to the hysteresis characteristics. [0005] In order to solve the above-described problems, there is a demand for a mirror angle detection device and a vehicle outer mirror that can detect a mirror angle without using a resistor or a magnet. Disclosure of the invention
[0006] 本発明の一側面としてのミラー角度検出装置は、基体部に対して傾動するミラーホ ルダを有する車両用アウターミラーに装備され、前記ミラーホルダの傾動角度を検出 するミラー角度検出装置であって、前記基体部および前記ミラーホルダのうちいずれ か一方に固定され、作用する応力に応じて検出値が変化するセンサと、前記基体部 と前記ミラーホルダの間に介設され、一端が前記センサに取り付けられた弾性部材と 、を有することを特徴とする。  [0006] A mirror angle detection device according to one aspect of the present invention is a mirror angle detection device that is mounted on a vehicle outer mirror having a mirror holder that tilts with respect to a base body and detects the tilt angle of the mirror holder. A sensor that is fixed to one of the base part and the mirror holder, and whose detection value changes according to the acting stress, is interposed between the base part and the mirror holder, and one end of the sensor And an elastic member attached to.
[0007] このようなミラー角度検出装置によれば、ミラー角度を調整すベぐミラーホルダを 傾動させると、基体部とミラーホルダの間の相対位置(間隔)が変化する。そして、そ れに伴い、基体部とミラーホルダの間に介設された弾性部材が伸縮するので、弾性 部材の一端が取り付けられたセンサにおいて、作用する応力が変化し、検出値が変 化する。この検出値にミラーホルダの傾動角度を対応付けて、ミラー角度を検出する ことができる。なお、「基体部」は、ミラーホルダが傾動することで、ミラーホルダとの相 対的な位置関係が変位する部材であって、例えば、フレーム、このフレームに固定さ れる部材 (例えば、ァクチユエータハウジング等)、または、これらを収容するカバー等 が挙げられる。  [0007] According to such a mirror angle detection device, when the mirror holder for adjusting the mirror angle is tilted, the relative position (interval) between the base portion and the mirror holder changes. Along with this, the elastic member interposed between the base portion and the mirror holder expands and contracts, so that the acting stress changes and the detection value changes in the sensor to which one end of the elastic member is attached. . The mirror angle can be detected by associating the tilt angle of the mirror holder with this detection value. The “base portion” is a member whose relative positional relationship with the mirror holder is displaced when the mirror holder is tilted. For example, a frame, a member fixed to the frame (for example, an action) Use housing, etc.), or a cover for housing these.
[0008] 前記ミラー角度検出装置において、前記車両用アウターミラーは、前記基体部側か ら前記ミラーホルダ側に進退自在に取り付けられるアジャストナットを有し、このアジャ ストナットに前記弾性部材の他端が取り付けられているものとすることができる。このァ ジャストナットを進退させると、アジャストナットに他端が取り付けられた弾性部材が伸 縮する。そして、それに伴い、弾性部材の一端が取り付けられたセンサにおいて、作 用する応力が変化し、検出値が変化する。この検出値にミラーホルダの傾動角度を 対応付けて、ミラー角度を検出することができる。  [0008] In the mirror angle detection device, the outer mirror for a vehicle includes an adjustment nut that is attached to the mirror holder side so as to be movable back and forth from the base portion side, and the other end of the elastic member is attached to the adjustment nut. It can be attached. When the adjustment nut is advanced and retracted, the elastic member having the other end attached to the adjustment nut expands and contracts. Along with this, in the sensor to which one end of the elastic member is attached, the applied stress changes and the detection value changes. The mirror angle can be detected by associating the tilt angle of the mirror holder with this detected value.
[0009] 前記ミラー角度検出装置において、前記センサは、荷重センサまたは歪ゲージとす ることができる。ここで、ミラー角度を調整すベぐミラーホルダを傾動させると、基体部 とミラーホルダの間の間隔が変化する。そして、それに伴い、基体部とミラーホルダの 間に介設された弾性部材が伸縮するので、弾性部材の一端が取り付けられたセンサ において、作用する応力が変化し、検出値が変化する。つまり、荷重センサにおいて は、検出される荷重の大きさ (検出値)が変化し、歪ゲージにおいては、出力される歪 の大きさ (検出値)が変化する。この検出値とミラーホルダの傾動角度とを対応付けて おけば、センサの検出値力もミラー角度を把握 (検出)することができる。なお、歪ゲ ージに弾性部材を取り付ける場合においては、歪ゲージと弾性部材の間に薄板等を 介在させる場合も含むものとする。 [0009] In the mirror angle detection device, the sensor may be a load sensor or a strain gauge. Here, when the mirror holder for adjusting the mirror angle is tilted, the distance between the base portion and the mirror holder changes. And along with that, the base and mirror holder Since the elastic member interposed therebetween expands and contracts, in the sensor to which one end of the elastic member is attached, the acting stress changes and the detected value changes. That is, in the load sensor, the magnitude of the detected load (detected value) changes, and in the strain gauge, the magnitude of the output strain (detected value) changes. By associating this detected value with the tilt angle of the mirror holder, the detected value force of the sensor can also grasp (detect) the mirror angle. Note that the case where an elastic member is attached to the strain gauge includes the case where a thin plate or the like is interposed between the strain gauge and the elastic member.
[0010] 本発明の他の側面として、前記ミラー角度検出装置を備えた車両用アウターミラー を提供する。  As another aspect of the present invention, there is provided an outer mirror for a vehicle provided with the mirror angle detection device.
[0011] 本発明に係るミラー角度検出装置および車両用アウターミラーによれば、作用する 応力に基づいて検出値が変化するセンサを用いるため、従来のように、抵抗体の磨 耗、磁気影響等により出力が変化することがなぐミラー角度を検出することができる 。特に、ヒステリシス特性を抑えることができ、ミラー角度の検出精度を向上させること ができる。また、センサ (荷重センサ、歪ゲージ)自体が小型であるため、車両用ァゥ ターミラー内部の設計自由度を高めることができる。  [0011] According to the mirror angle detection device and the vehicle outer mirror according to the present invention, since the sensor whose detection value changes based on the acting stress is used, the resistance wear, magnetic influence, etc. Thus, the mirror angle at which the output does not change can be detected. In particular, the hysteresis characteristic can be suppressed, and the mirror angle detection accuracy can be improved. In addition, since the sensor (load sensor, strain gauge) itself is small, the degree of freedom in designing the interior of the vehicle mirror can be increased.
[0012] 前記した本発明の諸側面及び効果、並びに、他の効果及びさらなる特徴は、添付 の図面を参照して後述する本発明の例示的かつ非制限的な実施の形態の詳細な説 明により、一層明ら力となるであろう。  [0012] The aspects and advantages of the present invention described above, as well as other effects and further features, will be described in detail below with reference to the accompanying drawings in an illustrative and non-limiting embodiment of the present invention. Will be more obvious.
図面の簡単な説明  Brief Description of Drawings
[0013] [図 1]本発明の第 1の実施形態に係るミラー角度検出装置が内蔵されるサイドミラー S M (車両用アウターミラー)の構造を示す分解斜視図である。  FIG. 1 is an exploded perspective view showing a structure of a side mirror S M (vehicle outer mirror) in which a mirror angle detection device according to a first embodiment of the present invention is built.
[図 2]図 1のミラー角度調整装置の構造を示す分解斜視図である。  2 is an exploded perspective view showing the structure of the mirror angle adjusting device of FIG.
[図 3]ミラー角度検出装置の動作を示す図であり、 (a)はアジャストナットの移動前の 状態を示す断面図、(b)はアジャストナットの移動後の状態を示す断面図である。  FIG. 3 is a view showing the operation of the mirror angle detection device, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a cross-sectional view showing a state after the adjustment nut is moved.
[図 4]図 4は、第 2の実施形態に係るミラー角度検出装置の動作を示す図であり、 (a) はアジャストナットの移動前の状態を示す断面図、(b)はアジャストナットの移動後の 状態を示す断面図である。  FIG. 4 is a view showing the operation of the mirror angle detection device according to the second embodiment, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a view of the adjustment nut. It is sectional drawing which shows the state after a movement.
[図 5]変形例に係るミラー角度検出手段の動作を示す図であり、 (a)はアジャストナツ トの移動前の状態を示す断面図、(b)はアジャストナットの移動後の状態を示す断面 図である。 FIG. 5 is a diagram showing the operation of a mirror angle detection means according to a modification, (a) is an adjustment nut FIG. 4B is a cross-sectional view showing a state before the adjustment nut is moved, and FIG.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0014] [第 1の実施形態]  [0014] [First embodiment]
以下、図面を参照して、本発明に係るミラー角度検出装置の詳細について説明す る。なお、以下の説明における上下または前後左右の方向については、サイドミラー SMを車体右側に取り付けた際の方向で説明することとする。  Details of the mirror angle detection device according to the present invention will be described below with reference to the drawings. In the following description, the up / down or front / rear / left / right directions will be described in the direction when the side mirror SM is attached to the right side of the vehicle body.
[0015] 図 1に示すように、サイドミラー SMは、ミラー本体 Mとカバー C (ミラーハウジング)と で形成される空間内に、フレーム SBと、このフレーム SBに固定されるミラー角度調整 装置 Eとを主に内蔵するものである。  As shown in FIG. 1, the side mirror SM has a frame SB and a mirror angle adjusting device E fixed to the frame SB in a space formed by the mirror main body M and a cover C (mirror housing). Are mainly built in.
[0016] このミラー角度調整装置 Eは、ミラー本体 Mを支持するミラーホルダ 1と、このミラー ホルダ 1を傾動自在に支持し、フレーム SBに固定されるァクチユエータハウジング 2 ( 基体部)と、ミラー角度検出装置 3 (図 2参照)と、図示しない制御装置を主に備えて いる。ミラー角度調整装置 Eでは、図示しない制御装置によって、ミラー角度検出装 置 3が検出する検出値を記憶し、この記憶した検出値に基づき、後記するモータ 7を 駆動して、ミラーホルダ 1を任意の角度に傾動させることができる。なお、本実施形態 では、ァクチユエータハウジング 2を、本発明の「基体部」に相当するものとした力 本 発明の「基体部」はこれに限定されるものではなぐ例えば、カバー C、フレーム SB、 または、このフレーム SBに固定される部材等、ミラーホルダ 2が傾動することで、その 相対的な位置関係が変位する部材であればすべて基体部に含まれる。  The mirror angle adjusting device E includes a mirror holder 1 that supports a mirror body M, an actuator housing 2 (base portion) that supports the mirror holder 1 in a tiltable manner, and is fixed to a frame SB. The mirror angle detection device 3 (see FIG. 2) and a control device (not shown) are mainly provided. In the mirror angle adjustment device E, a detection value detected by the mirror angle detection device 3 is stored by a control device (not shown), and a motor 7 described later is driven based on the stored detection value to arbitrarily set the mirror holder 1 Can be tilted to any angle. In the present embodiment, the force of the actuator housing 2 corresponding to the “base portion” of the present invention is not limited to this. For example, the cover C, Any member whose relative positional relationship is displaced by tilting the mirror holder 2 such as the frame SB or a member fixed to the frame SB is included in the base portion.
[0017] 図 2に示すように、ミラーホルダ 1は、薄板を略矩形状に形成した部品であり、その 適所に傾動の中心となる支点部 11が中空の半球体の先端を切り取った形状 (球帯 形状)で前方に突出して形成されている。ァクチユエータハウジング 2は、フロントハウ ジング 21と、リャハウジング 22とに分割されて構成されており、その内部に、主にパッ キン 4、アジャストナット 5、ウォームホイール 6およびモータ 7をそれぞれ 2つずつ内蔵 している。  As shown in FIG. 2, the mirror holder 1 is a part in which a thin plate is formed in a substantially rectangular shape, and a fulcrum part 11 serving as a center of tilting is cut at the tip of a hollow hemisphere at an appropriate position ( It is formed to protrude forward in the shape of a sphere). The actuator housing 2 is divided into a front housing 21 and a rear housing 22, and mainly contains a packing 4, an adjustment nut 5, a worm wheel 6 and a motor 7 respectively. Built-in one by one.
[0018] フロントハウジング 21は、二重底になっており、後方側の底部 211には、ミラーホル ダ 1の傾動中心となる位置に後方へ突出する突出部 21aが形成され、この突出部 21 aの先端面には、ミラーホルダ 1を固定するためのねじ Nが螺合する雌ねじ部 21cが 形成されている。また、この突出部 21aの右側と下側にそれぞれ後方へ突出する略 円筒形状のピン (ねじ部材) 8が設けられて 、る。 [0018] The front housing 21 has a double bottom, and a projecting portion 21a projecting rearward is formed at the position of the tilting center of the mirror holder 1 on the rear bottom portion 211. A female thread portion 21c into which a screw N for fixing the mirror holder 1 is screwed is formed on the tip surface of a. Further, a substantially cylindrical pin (screw member) 8 that protrudes rearward is provided on the right side and the lower side of the protruding portion 21a.
[0019] ピン 8は、円筒状に形成されるとともに、その外周面にアジャストナット 5が進退自在 に螺合する雄ねじ部 81が形成されている(図 3 (a)参照)。また、ピン 8の周囲には、ゥ オームホイール 6を回転自在に支持するための凹部 9が形成され、この凹部 9の周囲 には、図 2に示すように、グリスの飛散を防止するリブ 21fが形成され、この凹部 9ゃリ ブ 21fの近傍にはモータ 7が配設される凹状のモータ取付部 21gが形成されている。  [0019] The pin 8 is formed in a cylindrical shape, and a male screw portion 81 into which the adjustment nut 5 is screwed so as to be able to advance and retreat is formed on the outer peripheral surface (see FIG. 3 (a)). In addition, a recess 9 for rotatably supporting the worm wheel 6 is formed around the pin 8, and a rib 21f that prevents the grease from scattering is formed around the recess 9 as shown in FIG. A concave motor mounting portion 21g in which the motor 7 is disposed is formed in the vicinity of the concave portion 9 and the rib 21f.
[0020] リャハウジング 22には、ミラーホルダ 1の支点部 11を摺動自在に支持する凹状の支 持部 22aが形成され、この支持部 22aの右側と下側にノ¾ /キン 4のフランジ部 41が係 合して接着される円孔 22bが形成されている。また、支持部 22aの底壁には、前記突 出部 21aの先端部が挿通可能な円孔 22cが形成されている。そして、支持部 22aにミ ラーホルダ 1の支点部 11を係合させ、円孔 22cから突出する突出部 21aに球帯形状 を呈する押圧部材 Pとばね部材 SPとを取り付け、その上からねじ Nを突出部 21aの雌 ねじ部 21cに螺合させることで、ミラーホルダ 1が所定の付勢力で付勢された状態で ァクチユエータハウジング 2に傾動自在に取り付けられることとなる。  [0020] The rear housing 22 is formed with a concave support portion 22a that slidably supports the fulcrum portion 11 of the mirror holder 1, and a flange of the nozzle / kin 4 is formed on the right and lower sides of the support portion 22a. A circular hole 22b is formed to which the portion 41 is engaged and bonded. Further, a circular hole 22c is formed in the bottom wall of the support portion 22a so that the tip of the protruding portion 21a can be inserted therethrough. Then, the fulcrum part 11 of the mirror holder 1 is engaged with the support part 22a, and the pressing member P and the spring member SP having a spherical band shape are attached to the protruding part 21a protruding from the circular hole 22c, and the screw N is attached thereto. By screwing into the female threaded portion 21c of the protruding portion 21a, the mirror holder 1 is tiltably attached to the actuator housing 2 in a state of being biased by a predetermined biasing force.
[0021] 図 3に示すように、ミラー角度検出装置 3は、スプリング 31と、このスプリング 31の一 方の端部に取り付けられた荷重センサ 32とで構成されている。スプリング 31の他方 の端部は、図 3に示すように、後記するアジャストナット 5の底壁 51aの内面側に固定 されている。また、荷重センサ 32は基板 33に半田付けされており、この基板 33は、フ ロントハウジング 21の前方側の底部 212に取り付けられている。つまり、スプリング 31 は、アジャストナット 5の底壁 5 laと荷重センサ 32との間に介設されており、アジャスト ナット 5の進退に合わせて伸縮する。そして、アジャストナット 5の進退に合わせてスプ リング 31が伸縮すると、荷重センサ 32には、スプリング 31の復元力が作用することに なり、スプリング 31の復元力(伸縮量)に応じて、荷重センサ 32で検出される荷重の 大きさも変化する。なお、基板 33には、荷重センサ 32の他、図示しないアンプや、周 辺電子部品が搭載されており、これらが基板 33上で電気的に接続されている。ちな みに、荷重センサ 32は、静電容量型、圧電型、歪ゲージ等、種々のセンサを用いる ことができる。 As shown in FIG. 3, the mirror angle detection device 3 includes a spring 31 and a load sensor 32 attached to one end of the spring 31. As shown in FIG. 3, the other end of the spring 31 is fixed to the inner surface side of the bottom wall 51a of the adjusting nut 5 described later. The load sensor 32 is soldered to the board 33, and the board 33 is attached to the bottom 212 on the front side of the front housing 21. That is, the spring 31 is interposed between the bottom wall 5 la of the adjustment nut 5 and the load sensor 32, and expands and contracts as the adjustment nut 5 advances and retreats. When the spring 31 is expanded and contracted in accordance with the advancement and retraction of the adjusting nut 5, the restoring force of the spring 31 acts on the load sensor 32, and the load sensor 32 responds to the restoring force (extension amount) of the spring 31. The magnitude of the load detected at 32 also changes. In addition to the load sensor 32, an amplifier (not shown) and peripheral electronic components are mounted on the substrate 33, and these are electrically connected on the substrate 33. Incidentally, the load sensor 32 uses various sensors such as a capacitance type, a piezoelectric type, and a strain gauge. be able to.
[0022] 図 2に示すように、パッキン 4は、ァクチユエータハウジング 2内への水の浸入を防止 するためのものであり、伸縮変形可能なゴム部材で形成されている。そして、このパッ キン 4は、その前端のフランジ部 41がリャハウジング 22の円孔 22bに係合され、その 後端の小径部 42がミラーホルダ 1に係合される。  As shown in FIG. 2, the packing 4 is for preventing water from entering the actuator housing 2 and is formed of a rubber member that can be expanded and contracted. The front end flange portion 41 of the packing 4 is engaged with the circular hole 22 b of the rear housing 22, and the rear end small diameter portion 42 is engaged with the mirror holder 1.
[0023] 図 3に示すように、アジャストナット 5は、有底円筒状の本体部 51と、この本体部 51 の底壁 51aから後方へ突出してミラーホルダ 1の嵌合凹部 12 (図 3参照)に回動自在 に嵌合される球状のピボッド部 52と、本体部 51の開口端部から前方へ突出する 5本 の足部 53 (3本のみ図示)とで主に構成されている。また、本体部 51には、その外周 面の適所に外側に突出するリブ 51cが形成されている。そして、足部 53の先端には 、その内面 (径方向内側の面)に内側へ突出して前記雄ねじ部 81と螺合する爪部 53 a (図 3参照)が形成されて!ヽる。  As shown in FIG. 3, the adjusting nut 5 includes a bottomed cylindrical main body 51 and a fitting recess 12 of the mirror holder 1 protruding rearward from the bottom wall 51a of the main body 51 (see FIG. 3). ) And a spherical pivot portion 52 that is rotatably fitted to the main body portion 51, and five foot portions 53 (only three are shown) projecting forward from the opening end of the main body portion 51. In addition, the main body 51 is formed with ribs 51c protruding outward at appropriate positions on the outer peripheral surface thereof. At the tip of the foot 53, a claw 53a (see FIG. 3) that protrudes inwardly on the inner surface (radially inner surface) and engages with the male screw 81 is formed.
[0024] 図 2に示すように、ウォームホイール 6は、フロントハウジング 21の凹部 9に回転自在 に係合する略円筒状の摺動部 61と、この摺動部 61より大きな径となる略円筒状の本 体部 62とで主に構成されている。この本体部 62には、その外周の前側部分にモータ 7のギア部 71と嚙み合うギア部 62aが形成されるとともに、その後端面 62bの内周端 縁に後方へ突出するリブ 63が形成されている。このリブ 63には、溝部 64が、前後方 向で連通するように形成されており、この溝部 64にアジャストナット 5のリブ 51cが係 合することで、アジャストナット 5がウォームホイール 6に対して前後方向(ウォームホイ ール 6の中心軸に沿った方向)に移動自在で、かつ相対回転不能に係合することと なる。  As shown in FIG. 2, the worm wheel 6 includes a substantially cylindrical sliding portion 61 that is rotatably engaged with the recess 9 of the front housing 21, and a substantially cylindrical shape having a larger diameter than the sliding portion 61. The main body 62 is mainly configured. The main body portion 62 is formed with a gear portion 62a that fits with the gear portion 71 of the motor 7 at the front portion of the outer periphery thereof, and a rib 63 that protrudes rearward at the inner peripheral edge of the rear end surface 62b. ing. A groove 64 is formed in the rib 63 so as to communicate in the front-rear direction, and the adjustment nut 5 is connected to the worm wheel 6 by engaging the rib 51c of the adjustment nut 5 with the groove 64. It is movable in the front-rear direction (the direction along the central axis of the worm wheel 6) and is engaged so as not to be relatively rotatable.
[0025] モータ 7は、ウォームホイール 6を回転駆動するためにその回転軸 72の外面にギア 部 71が形成されている。また、このモータ 7には、フロントハウジング 21のモータ取付 部 21gに形成される孔 21hから挿入されてくるプラグ PLを介して電力が供給される。  In the motor 7, a gear portion 71 is formed on the outer surface of the rotating shaft 72 for rotationally driving the worm wheel 6. In addition, electric power is supplied to the motor 7 via a plug PL inserted from a hole 21h formed in the motor mounting portion 21g of the front housing 21.
[0026] 次に、ミラー角度検出装置 3の動作について説明する。図 3に示すように、例えば、 ミラー本体 M (図 1参照)を上側に傾ける場合は、下部にあるモータ 7の駆動によりゥ オームホイール 6を介してアジャストナット 5を後方に移動させると、ミラーホルダ 1が上 側に傾動する。このとき、図 3 (a)に示すように、ミラーホルダ 1を傾動させる前は、スプ リング 31が縮んだ状態である力 図 3 (b)に示すように、アジャストナット 5を前進させ てミラーホルダ 1を傾動させると、スプリング 31が伸びることになる。そして、このスプリ ング 31の伸縮に合わせて、荷重センサ 32にスプリング 31の復元力が作用し、荷重 センサ 32によって検出される荷重の大きさも変化する。 Next, the operation of the mirror angle detection device 3 will be described. As shown in FIG. 3, for example, when the mirror body M (see FIG. 1) is tilted upward, when the adjustment nut 5 is moved backward via the worm wheel 6 by driving the motor 7 in the lower part, Holder 1 tilts upward. At this time, as shown in FIG. 3 (a), before tilting the mirror holder 1, Force with ring 31 contracted As shown in FIG. 3 (b), when adjusting nut 5 is moved forward to tilt mirror holder 1, spring 31 is extended. As the spring 31 expands and contracts, the restoring force of the spring 31 acts on the load sensor 32, and the magnitude of the load detected by the load sensor 32 also changes.
[0027] そして、図示しない制御装置で、この荷重の大きさを記憶し、この荷重の大きさとミラ 一本体 Mのミラー角度に対応させておくことで、ミラー角度、すなわちアジャストナット 5の位置を把握できるとともに、記憶した荷重の大きさに基づき、ミラーホルダ 1を任意 の角度に傾動させることができるようになつている。つまり、一の運転者に適したミラー 角度に対応する荷重を制御装置に記憶させておけば、他の運転者力 ラー角度を変 えた場合であっても、記憶した荷重になるまでミラーホルダ 1を傾動させることで、一 の運転者に適したミラー角度、すなわちアジャストナット 5の位置が再現できる。  [0027] Then, the magnitude of this load is stored by a control device (not shown), and the mirror angle, that is, the position of the adjustment nut 5 is determined by making the magnitude of this load correspond to the mirror angle of the mirror body M. In addition to grasping it, the mirror holder 1 can be tilted to an arbitrary angle based on the stored load. In other words, if the load corresponding to the mirror angle suitable for one driver is stored in the control device, even if the other driver's power error angle is changed, the mirror holder 1 is used until the stored load is reached. By tilting, the mirror angle suitable for one driver, that is, the position of the adjustment nut 5 can be reproduced.
[0028] 以上によれば、本実施の形態において、以下の効果を得ることができる。本実施の 形態では、荷重センサ 32を用いてミラー角度を検出するため、従来のように、抵抗体 の磨耗、磁気影響等により出力が変化することがなぐミラー角度を精度よく検出する ことができる。特に、ヒステリシス特性を抑えることができ、ミラー角度の検出精度を向 上させる。  [0028] According to the above, the following effects can be obtained in the present embodiment. In the present embodiment, since the mirror angle is detected using the load sensor 32, the mirror angle at which the output does not change due to wear of the resistor, magnetic influence, etc. can be accurately detected as in the past. . In particular, the hysteresis characteristic can be suppressed, and the mirror angle detection accuracy is improved.
[0029] また、荷重センサ 32自体は小型、薄型であるため、サイドミラー SM (図 1参照)内部 の設計自由度を高めることができる。さらに、荷重センサ 32は、アンプ等の周辺電子 部品とともに基板 33上に搭載されるため、電気的な配策が容易になる。また、このた め、サイドミラー SM内に容易に装備することができる。  [0029] Further, since the load sensor 32 itself is small and thin, the degree of freedom of design inside the side mirror SM (see Fig. 1) can be increased. Furthermore, since the load sensor 32 is mounted on the substrate 33 together with peripheral electronic components such as an amplifier, electrical arrangement is facilitated. For this reason, it can be easily installed in the side mirror SM.
[0030] [第 2の実施形態]  [0030] [Second Embodiment]
以下、本発明に係るミラー角度検出装置における第 2の実施形態について説明す る。図 4は、第 2の実施形態に係るミラー角度検出装置の動作を示す図であり、(a)は アジャストナットの移動前の状態を示す断面図、(b)はアジャストナットの移動後の状 態を示す断面図である。この実施形態は第 1の実施形態におけるミラー角度検出装 置の一部を変更したものなので、第 1の実施形態と同様の構成要素については同一 符号を付し、その説明を省略する。  The second embodiment of the mirror angle detection device according to the present invention will be described below. FIG. 4 is a view showing the operation of the mirror angle detection device according to the second embodiment, where (a) is a sectional view showing a state before the adjustment nut is moved, and (b) is a state after the adjustment nut is moved. It is sectional drawing which shows a state. Since this embodiment is obtained by changing a part of the mirror angle detection device in the first embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
[0031] まず、図 4 (a)および (b)に示すように、第 2の実施形態のフロントハウジング 21にお いては、このフロントハウジング 21に形成されるピン 8が、その基端部側が閉口した有 底筒状に形成されている点力 前記第 1の実施形態のフロントハウジング 21と異なる First, as shown in FIGS. 4 (a) and 4 (b), the front housing 21 of the second embodiment is provided. In this case, the pin 8 formed in the front housing 21 has a point force formed in a bottomed cylindrical shape whose base end portion is closed, which is different from the front housing 21 of the first embodiment.
[0032] 第 2の実施形態に係るミラー角度検出装置 3Aは、スプリング 31と、ピン 8の底部 82 に取り付けられた歪ゲージ 34とで構成されている。スプリング 31の一端は、底部 82 に取り付けられており、他端は、図 4に示すように、後記するアジャストナット 5の底壁 5 laの内面側に固定されている。つまり、スプリング 31は、アジャストナット 5の底壁 51a と歪ゲージ 34との間に介設されており、アジャストナット 5の進退に合わせて伸縮する 。歪ゲージ 34は、スプリング 31の復元力が作用するピン 8の底部 82に取り付けられ ていることで、ピン 8の底部 82の歪みを検出する。なお、歪ゲージ 34は、図示しない アンプ等の周辺電子部品が搭載された基板 33に電気的に接続されている。 The mirror angle detection device 3A according to the second embodiment includes a spring 31 and a strain gauge 34 attached to the bottom portion 82 of the pin 8. One end of the spring 31 is attached to the bottom portion 82, and the other end is fixed to the inner surface side of the bottom wall 5la of the adjusting nut 5 described later, as shown in FIG. That is, the spring 31 is interposed between the bottom wall 51a of the adjustment nut 5 and the strain gauge 34, and expands and contracts as the adjustment nut 5 advances and retreats. The strain gauge 34 is attached to the bottom portion 82 of the pin 8 where the restoring force of the spring 31 acts, and thereby detects the strain of the bottom portion 82 of the pin 8. The strain gauge 34 is electrically connected to a substrate 33 on which peripheral electronic components such as an amplifier (not shown) are mounted.
[0033] 次に、このミラー角度検出装置の動作について説明する。例えば、アジャストナット 5を後方に移動させると、ミラーホルダ 1が上側に傾動する。このとき、図 4 (a)に示す ように、ミラーホルダ 1を傾動させる前は、スプリング 31が縮んだ状態である力 図 4 (b )に示すように、アジャストナット 5を前進させて、ミラーホルダ 1を傾動させると、スプリ ング 31が伸びることになる。そして、このスプリング 31の伸縮に合わせて、ピン 8の底 部にスプリング 31の復元力が作用して、この底部 82がひずみ、その結果、歪ゲージ 34の抵抗値が変化する。  Next, the operation of this mirror angle detection device will be described. For example, when the adjustment nut 5 is moved backward, the mirror holder 1 tilts upward. At this time, as shown in FIG. 4 (a), before the mirror holder 1 is tilted, the force in which the spring 31 is contracted is moved forward as shown in FIG. When the holder 1 is tilted, the spring 31 extends. As the spring 31 expands and contracts, the restoring force of the spring 31 acts on the bottom of the pin 8 and the bottom 82 is distorted. As a result, the resistance value of the strain gauge 34 changes.
[0034] そして、図示しな ヽ制御装置にお 、て、この抵抗値を記憶し、この抵抗値とミラーホ ルダ 1のミラー角度に対応付けておくことで、ミラー角度、すなわち、アジャストナット 5 の位置を把握できるようになつている。以上によれば、第 2の実施形態においても、第 1の実施形態と同様の効果を得ることができる。  [0034] Then, in the control device (not shown), this resistance value is stored, and this resistance value is associated with the mirror angle of the mirror holder 1, whereby the mirror angle, that is, the adjustment nut 5 is adjusted. The position can be grasped. As described above, also in the second embodiment, the same effect as that of the first embodiment can be obtained.
[0035] 以上、本発明の第 1の実施形態および第 2の実施形態について説明したが、本発 明は前記実施形態に限定されない。むしろ、添付の請求の範囲で定義するところの 本発明の精神及び範囲を逸脱しない限り、これらの実施の形態に対して様々な修正 や変更が可能である。  Although the first embodiment and the second embodiment of the present invention have been described above, the present invention is not limited to the above embodiment. Rather, various modifications and changes may be made to these embodiments without departing from the spirit and scope of the invention as defined in the appended claims.
[0036] たとえば、前記実施形態では、フレーム SBにァクチユエータハウジング 2を固定す る構成とした力 本発明はこれに限定されず、カバー Cにァクチユエータハウジング 2 を固定する構成としてもょ ヽ。 For example, in the above-described embodiment, the force configured to fix the actuator housing 2 to the frame SB is not limited to this. The actuator housing 2 is attached to the cover C. As a configuration to fix the ょ.
[0037] また、前記実施形態では、荷重センサ 32をァクチユエータハウジング 2の内部に取 り付ける構成としたが、本発明はこれに限定されず、前記いずれの場合においても、 ァクチユエータハウジング 2の内部の他、ァクチユエータハウジング 2の外部(例えば、 フレーム SB等)、または、カバー C等、ミラーホルダ 1が傾動することで、ミラーホルダ 1との相対的な位置関係が変化する部材)であれば、 V、ずれの部材に取り付けられる ものであってもよい。具体的には以下のように変形して実施することができる。  [0037] In the embodiment, the load sensor 32 is attached to the inside of the actuator housing 2. However, the present invention is not limited to this, and in any of the above cases, the load sensor 32 is provided. In addition to the inside of the eta housing 2, the mirror holder 1 such as the outside of the actuator housing 2 (for example, the frame SB) or the cover C etc. tilts so that the relative positional relationship with the mirror holder 1 is As long as it is a (variable member), it may be attached to a member of V or misalignment. Specifically, the following modifications can be made.
[0038] 図 5は、変形例に係るミラー角度検出手段の動作を示す図であり、 (a)はアジャスト ナットの移動前の状態を示す断面図、(b)はアジャストナットの移動後の状態を示す 断面図である。  FIG. 5 is a view showing the operation of the mirror angle detecting means according to the modification, (a) is a cross-sectional view showing a state before the adjustment nut is moved, and (b) is a state after the adjustment nut is moved. FIG.
[0039] 前記実施形態では、スプリング 31の一端をアジャストナット 5の底壁 5 laに取り付け 、他端をフロントハウジング 21に固定される荷重センサ 32に取り付けた力 スプリング 31および荷重センサ 32の取付場所は特に限定されない。例えば、図 5に示すように 、ミラーホルダ 1が傾動することで、ミラーホルダ 1との相対的な位置関係が変位する 支持板 C1 (基体部)(例えば、フレーム SB (図 1参照)、フレーム SBに固定される部 材 (例えば、ァクチユエータハウジング等)、またはカバー Cであってもよい。 )に、基板 33に半田付けされた荷重センサ 32を固定した上で、スプリング 31の一端を荷重セン サ 32に取り付け、他端をミラーホルダ 1に直接取り付けるようにしてもよい。これによれ ば、ミラー角度検出装置を、サイドミラー SMに容易に後付けすることができる。  [0039] In the above-described embodiment, one end of the spring 31 is attached to the bottom wall 5 la of the adjustment nut 5, and the other end is attached to the load sensor 32 fixed to the front housing 21. Is not particularly limited. For example, as shown in FIG. 5, when the mirror holder 1 tilts, the relative positional relationship with the mirror holder 1 is displaced. Support plate C1 (base portion) (for example, frame SB (see FIG. 1), frame The load sensor 32 soldered to the board 33 is fixed to a member (for example, an actuator housing or the like) fixed to the SB or the cover C), and then one end of the spring 31 is fixed. May be attached to the load sensor 32 and the other end may be directly attached to the mirror holder 1. According to this, the mirror angle detection device can be easily retrofitted to the side mirror SM.
[0040] さらに、前記実施形態では、基体部側(ァクチユエータハウジング 2)に荷重センサ 3 2を取り付け、荷重センサ 32に取り付けられたスプリング 31の他端をミラーホルダ 1に 取り付ける構成とした力 この取付位置は互いに入れ替えることもできる。  Furthermore, in the above embodiment, the load sensor 32 is attached to the base body side (actuator housing 2), and the other end of the spring 31 attached to the load sensor 32 is attached to the mirror holder 1. Force The mounting positions can be interchanged.
産業上の利用可能性  Industrial applicability
[0041] 本発明は、車両用アウターミラーに適用可能であり、車両用アウターミラーにおいて ミラーの傾動角度を検出するミラー角度検出装置に適用することにより、抵抗体ゃ磁 石を用いることなぐミラー角度を検出することができる。 [0041] The present invention can be applied to a vehicle outer mirror. By applying the present invention to a mirror angle detection device that detects a tilt angle of a mirror in a vehicle outer mirror, a mirror angle without using a resistor or magnetite. Can be detected.

Claims

請求の範囲 The scope of the claims
[1] 基体部に対して傾動するミラーホルダを有する車両用アウターミラーに装備され、 前記ミラーホルダの傾動角度を検出するミラー角度検出装置であって、  [1] A mirror angle detection device that is mounted on a vehicle outer mirror having a mirror holder that tilts with respect to a base body and detects a tilt angle of the mirror holder,
前記基体部および前記ミラーホルダのうちいずれか一方に固定され、作用する応 力に応じて検出値が変化するセンサと、  A sensor that is fixed to one of the base portion and the mirror holder and whose detection value changes according to the acting stress;
前記基体部と前記ミラーホルダの間に介設され、一端が前記センサに取り付けられ た弾性部材と、を有することを特徴とするミラー角度検出装置。  A mirror angle detection device comprising: an elastic member interposed between the base portion and the mirror holder and having one end attached to the sensor.
[2] 前記車両用アウターミラーは、前記基体部側から前記ミラーホルダ側に進退自在に 取り付けられるアジャストナットを有し、このアジャストナットに前記弾性部材の他端が 取り付けられていることを特徴とする請求の範囲第 1項に記載のミラー角度検出装置  [2] The vehicle outer mirror includes an adjustment nut that is attached to the mirror holder side so as to be able to advance and retreat from the base portion side, and the other end of the elastic member is attached to the adjustment nut. The mirror angle detection device according to claim 1
[3] 前記センサは、荷重センサまたは歪ゲージであることを特徴とする請求の範囲第 1 項に記載のミラー角度検出装置。 [3] The mirror angle detection device according to claim 1, wherein the sensor is a load sensor or a strain gauge.
[4] 前記センサは、荷重センサまたは歪ゲージであることを特徴とする請求の範囲第 2 項に記載のミラー角度検出装置。 4. The mirror angle detection device according to claim 2, wherein the sensor is a load sensor or a strain gauge.
[5] 請求の範囲第 1項力 第 4項のいずれか 1項に記載のミラー角度検出装置を備えた ことを特徴とする車両用アウターミラー。 [5] An outer mirror for a vehicle, comprising the mirror angle detection device according to any one of claims 4 and 6.
PCT/JP2005/003463 2004-07-20 2005-03-02 Mirror angle detector and outer mirror for vehicle WO2006008852A1 (en)

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JP2009202633A (en) * 2008-02-26 2009-09-10 Tokai Rika Co Ltd Mirror adjusting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230840A (en) * 1983-06-14 1984-12-25 Matsuyama Seisakusho:Kk Angle detector for motor-driven rear-view mirror

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59230840A (en) * 1983-06-14 1984-12-25 Matsuyama Seisakusho:Kk Angle detector for motor-driven rear-view mirror

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