WO2014162512A1 - Rack and spur gear mechanism, rack and spur gear drive mechanism and rack and drive device - Google Patents

Rack and spur gear mechanism, rack and spur gear drive mechanism and rack and drive device Download PDF

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Publication number
WO2014162512A1
WO2014162512A1 PCT/JP2013/060053 JP2013060053W WO2014162512A1 WO 2014162512 A1 WO2014162512 A1 WO 2014162512A1 JP 2013060053 W JP2013060053 W JP 2013060053W WO 2014162512 A1 WO2014162512 A1 WO 2014162512A1
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WO
WIPO (PCT)
Prior art keywords
rack
spur gear
combiner
rack portion
gear
Prior art date
Application number
PCT/JP2013/060053
Other languages
French (fr)
Japanese (ja)
Inventor
伸之 佐藤
Original Assignee
パイオニア株式会社
東北パイオニア株式会社
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Publication date
Application filed by パイオニア株式会社, 東北パイオニア株式会社 filed Critical パイオニア株式会社
Priority to PCT/JP2013/060053 priority Critical patent/WO2014162512A1/en
Publication of WO2014162512A1 publication Critical patent/WO2014162512A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
    • B60K35/53—Movable instruments, e.g. slidable
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/1822—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors comprising means for aligning the optical axis
    • G02B7/1824—Manual alignment
    • G02B7/1825—Manual alignment made by screws, e.g. for laser mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack

Definitions

  • the present invention relates to a slack spur gear mechanism, a rack spur gear drive mechanism, and a drive device.
  • a head-up display for a vehicle uses a combiner that is a reflector that projects display light on the driver's seat side.
  • This combiner is placed on a dashboard, for example, when in use.
  • the combiner is generally accommodated in the dashboard, and considering the space saving in the dashboard, it is preferable that the combiner move path has a higher degree of design freedom.
  • the problem to be solved by the present invention is to make the movement of a spur gear smooth in a rack and spur gear configuration that can be applied to a drive device for moving a driven member.
  • the rack spur gear mechanism according to claim 1 is a spur gear, a rack that meshes and rotates the spur gear, and the first rack portion and the second rack portion that have different curvature radii of the rotational movement track.
  • FIG. 1 is a perspective view showing a combiner driving device of a head-up display device for a vehicle provided with a rack spur gear mechanism and a rack spur gear driving mechanism according to a first embodiment of the present invention. It is a figure explaining operation
  • a rack spur gear mechanism includes a spur gear and a composite rack in which a first rack portion and a second rack portion are continuously connected.
  • the first rack portion and the second rack portion are different from each other in the radius of curvature of the track when the spur gear rotates and moves on the composite rack.
  • the shape of the side surface on the side and the side surface on the second rack portion side are different. Accordingly, the spur gear smoothly rotates and moves at the boundary between the first rack portion and the second rack portion.
  • FIG. 1 is a perspective view showing a combiner driving device of a vehicle head-up display device having a rack spur gear mechanism and a rack spur gear driving mechanism according to a first embodiment of the present invention.
  • This combiner drive device has the rack spur gear drive mechanism 10 of the first embodiment and a combiner unit 20.
  • the rack spur gear drive mechanism 10 includes a first spur gear 1L, a second spur gear 1R, a composite rack 2, a rotating device 3 as drive means, a first guide groove 4L, and a second guide. And a groove 5L.
  • the composite rack 2 and the first and second guide grooves 4L and 5L are formed in the guide member 10A.
  • the combiner unit 20 has a combiner 20A and a combiner holding member 20B.
  • this combiner drive device When this combiner drive device is mounted in a dashboard of a vehicle and functions as a head-up display, the combiner 20A is moved from the state of FIG. 1 to the upper side of FIG. Move to the top of The combiner 20A is opposed to a reflection mirror (not shown) that reflects display light of a display (not shown) at that position, and reflects the display light reflected by the reflection mirror toward the eye point on the driver's seat side.
  • the first and second spur gears 1L and 1R are respectively arranged on both sides at the lower end of the combiner holding portion 20B, and the first spur gear 1L and the second spur gear 1R are pivotally supported by the combiner holding portion 20B. It is fixed to the end of the gear support member 11.
  • the rotation device 3 includes a motor 31, a worm gear 32 fixed to the drive shaft of the motor 31, a reduction gear 33 meshed with the worm gear 32, a reduction gear 34 meshed with the reduction gear 33, and a reduction gear 34 meshing
  • the reduction gear 35 and the bevel gear 36 meshed with the reduction gear 35 are provided.
  • the first spur gear 1L is also a bevel gear, and meshes with the bevel gear 36 of the rotating device 3.
  • the rotational driving force of the motor 31 is transmitted to the worm gear 32, the reduction gears 33, 34, and 35, the bevel gear 36, and the first spur gear 1L, and the first spur gear 1L rotates.
  • the rotational driving force of the first spur gear 1L is transmitted to the second spur gear 1R by the gear support member 11.
  • the 1st and 2nd spur gears 1L and 1R rotate coaxially.
  • the first and second spur gears 1L and 1R have the same gear specifications except for the bevel gear.
  • the composite rack 2 is configured by continuously connecting a linear rack 21, an external gear 22, and an internal gear 23.
  • the linear rack 21 is provided in a substantially vertical direction.
  • the internal gear 23 is provided on an arc centered on the top dead center A of the first guide groove 4L.
  • the external gear 22 is provided so as to connect the linear rack 21 and the internal gear 23.
  • the first guide groove 4L is formed in parallel to the composite rack 2 so as to keep a certain distance from the composite rack 2.
  • the second guide groove 5 ⁇ / b> L is formed substantially parallel to the linear rack 21 in the linear rack 21, and slightly inclined in a direction away from the internal gear 23 from a position corresponding to the external gear 22. Has been.
  • the first spur gear 1L and the second spur gear 1R are each provided with a first pin 1a that protrudes outward, and the second pin 20a that protrudes outward is provided on each side of the upper portion of the combiner holding portion 20B. It has been.
  • the first pin 1a is fitted into the first guide groove 4L
  • the second pin 20a is fitted into the second guide groove 5L.
  • the first spur gear 1L is engaged with the composite rack 2.
  • the second spur gear 1R is also provided with a composite rack 2R, a first guide groove 4R, and a second guide groove 5R, which are schematically illustrated by a one-dot chain line in FIG. 1, and includes a first spur gear 1L.
  • first spur gear 1L side will be described as an example.
  • second spur gear 1R side since the configuration and operational effects on the second spur gear 1R side are the same as those of the first spur gear 1L side, the first embodiment In the following description, reference numerals L and R are omitted.
  • FIG. 2 is a diagram for explaining the operation of the combiner drive device in the first embodiment.
  • the two-dot chain lines indicated by reference numerals 4C and 5C in the figure indicate the centers of the first guide groove 4 and the second guide groove 5, respectively. Is a line.
  • the alternate long and short dash line indicated by the symbol F is the upper surface of the dashboard of the vehicle, and the left side of the figure is the driver's seat side.
  • the combiner unit 20 is raised, and the spur gear 1 is located at the boundary position between the external gear 22 and the internal gear 23.
  • the first pin 20 a comes to the position of the top dead center A of the first guide groove 4.
  • the combiner unit 20 rotates around the top dead center A, and the combiner 20A is inclined toward the driver's seat. .
  • the first guide groove 4 engages with the first pin 1a and is formed in parallel with the composite rack 2, and the second guide groove 5 engages with the second pin 20a and the second pin 20a. From one guide groove 4. It is formed with an arbitrary distance smaller than the interval (a constant distance) between the pin 1a and the pin 20a. Therefore, when the combiner unit 20 moves, the first guide groove 4 and the first pin 1a regulate the moving track of the combiner unit 20. In addition, the second pin 20a and the second guide groove 5 regulate the angle of the combiner unit 20 with respect to the moving track.
  • the distance between the first guide groove 4 and the second guide groove 5 is the shortest distance from an arbitrary point on the first guide groove 4 to the second guide groove 5.
  • FIG. 3 is a view showing a joint of the linear rack 21, the external gear 22, and the internal gear 23.
  • a center line 4C of the first guide groove 4 indicated by a one-dot chain line in FIG. 3 (A) is a track of the first spur gear 1.
  • the radius of curvature of the track of the spur gear 1 in the linear rack 21 is infinite
  • the radius of curvature of the track of the spur gear 1 in the external gear 22 is a finite positive value
  • the internal gear 23 The radius of curvature of the track of the spur gear 1 is a finite negative value.
  • the teeth existing at the boundary between the linear rack 21 and the external gear 22 are shared teeth 2A. Further, the external gear 22 and the internal gear 23 have teeth at the boundary as the shared tooth 2B.
  • the cross-sectional shape of the side surface 2A1 on the linear rack 21 side is the same as the cross-sectional shape of the side surface of the teeth 21a (other teeth) of the linear rack 21,
  • the cross-sectional shape of the side surface 2A2 on the gear 22 side is the same involute curve as the teeth 22a (other teeth) of the external gear 22.
  • the cross-sectional shape of the side surface 2B1 on the external gear 22 side is the same involute curve as the tooth 22a (other teeth) of the external gear 22, and the internal gear 23
  • the cross-sectional shape of the side surface 2B2 on the side is the same involute curve as the teeth 23a (other teeth) of the internal gear 23.
  • the combiner driving device in the first embodiment has a structure in which the combiner unit 20 is accommodated substantially vertically in the dashboard, but the combiner unit 20 is accommodated substantially horizontally in the dashboard as in the second embodiment below. It can also be a structure.
  • FIG. 4 is a side view showing a combiner drive device of a vehicle head-up display device having a rack spur gear drive mechanism of the second embodiment
  • FIG. 5 is a diagram for explaining the operation of the combiner drive device in the second embodiment.
  • symbol is attached
  • the straight rack 21X extending vertically is shorter than the straight rack 21 of the first embodiment.
  • the composite rack 2X of the second embodiment includes a linear rack 24 that extends in the horizontal direction (front-rear direction) in the dashboard, and an internal gear 25 that connects the linear rack 24 and the linear rack 21X.
  • the shape of the shared tooth at the boundary between the internal gear 25 and the linear rack 21X (the shape of the side surface) and the shape of the shared tooth at the boundary between the internal gear 25 and the linear rack 24 (the shape of the side surface) It is substantially the same shape as the teeth of the opposing rack.
  • Reference numeral 4 and 5 is a center line of a first guide groove (not shown) similar to the first guide groove 4 with which the first pin 1a is engaged.
  • Reference numeral 5CX denotes a center line of a second guide groove (not shown) similar to the second guide groove 5 with which the second pin 20a is engaged.
  • the combiner unit 20 is in a substantially horizontal posture and is accommodated in a dashboard (not shown).
  • the spur gear 1 is rotationally driven by the rotating device 3
  • the spur gear 1 moves along the composite rack 2X (and the center line 4CX).
  • the spur gear 1 passes through the internal gear 25
  • the spur gear 1 moves up substantially vertically by the linear rack 21 ⁇ / b> X
  • the spur gear 1 moves to the external gear 22.
  • the spur gear 1 exceeds the external gear 22, as in the first embodiment, the spur gear 1 moves along the internal gear 23, and the combiner unit 20 rotates about the top dead center A as the rotation center.
  • the combiner 20A is inclined toward the driver's seat.

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Abstract

A combiner drive device for moving a combiner (20A) of a head-up display or the like, wherein a spur gear (1) and a composite rack (2) operate smoothly together. The composite rack (2) is composed of a linear rack (21), an external gear (22), and an internal gear (23). The shape of a side surface (2A1) of a shared tooth (2A) at the boundary of the linear rack (21) and the external gear (22) is substantially the same as the shape of the other teeth of the linear rack (21). The other side surface (2A2) has substantially the same shape as the other teeth of the external gear (22). The shape of a side surface (2B1) of a shared tooth (2B) at the boundary of the external gear (22) and the internal gear (23) is substantially the same as the shape of the other teeth of the external gear (22). The other side surface (2B2) has substantially the same shape as the other teeth of the internal gear (23).

Description

ラック平歯車機構、ラック平歯車駆動機構及び駆動装置Rack spur gear mechanism, rack spur gear drive mechanism and drive device
　本発明は、スラック平歯車機構、ラック平歯車駆動機構及び駆動装置に関する。 The present invention relates to a slack spur gear mechanism, a rack spur gear drive mechanism, and a drive device.
　従来、車両用のヘッドアップディスプレイには、運転席側に表示光を投影する反射板であるコンバイナが用いられる。このコンバイナは、使用時に例えばダッシュボード上に配置される。使用しないときは、コンバイナはダッシュボード内に収容するものが一般的であり、ダッシュボード内の省スペースを考慮すると、コンバイナの移動経路は設計自由度が高い方が好ましい。 Conventionally, a head-up display for a vehicle uses a combiner that is a reflector that projects display light on the driver's seat side. This combiner is placed on a dashboard, for example, when in use. When not in use, the combiner is generally accommodated in the dashboard, and considering the space saving in the dashboard, it is preferable that the combiner move path has a higher degree of design freedom.
特開２００６－６９４７３号公報JP 2006-69473 A
　例えば、前記コンバイナの移動経路の設計自由度を高める為に、駆動装置の移動経路にラックと平歯車（ピニオン）を用いることが考えられる。しかしながら、コンバイナに限らず被駆動部材を移動させるようなとき、経路が曲がる箇所での平歯車の動きをスムースにする必要がある。 For example, it is conceivable to use a rack and a spur gear (pinion) as the moving path of the drive unit in order to increase the degree of freedom in designing the moving path of the combiner. However, when the driven member is moved in addition to the combiner, it is necessary to smooth the movement of the spur gear at the place where the path bends.
　本発明が解決しようとする課題には、被駆動部材を移動させる駆動装置などに適用可能であるようなラックと平歯車の構成において、平歯車の動きをスムースにすることを課題として挙げられる。 The problem to be solved by the present invention is to make the movement of a spur gear smooth in a rack and spur gear configuration that can be applied to a drive device for moving a driven member.
　請求項１のラック平歯車機構は、平歯車と、該平歯車を歯合して回転移動させるラックであって前記回転移動の軌道の曲率半径が互いに異なる第１ラック部と第２ラック部とを連続的に接続した複合ラックと、を備え、前記複合ラックの第１ラック部と第２ラック部との境界に該第１ラック部と該第２ラック部とが共有する共有歯があり、前記共有歯の両側面の形状が、前記第１ラック部側の側面と前記第２ラック部側の側面とでは形状が異なることを特徴とする。 The rack spur gear mechanism according to claim 1 is a spur gear, a rack that meshes and rotates the spur gear, and the first rack portion and the second rack portion that have different curvature radii of the rotational movement track. A composite rack continuously connected to each other, and a common tooth shared by the first rack portion and the second rack portion at a boundary between the first rack portion and the second rack portion of the composite rack, The shape of both side surfaces of the common tooth is different between the side surface on the first rack portion side and the side surface on the second rack portion side.
本発明の第１実施例のラック平歯車機構及びラック平歯車駆動機構を備えた車両用ヘッドアップディスプレイ装置のコンバイナ駆動装置を示す斜静図である。1 is a perspective view showing a combiner driving device of a head-up display device for a vehicle provided with a rack spur gear mechanism and a rack spur gear driving mechanism according to a first embodiment of the present invention. 本発明の第１実施例におけるコンバイナ駆動装置の動作を説明する図である。It is a figure explaining operation | movement of the combiner drive device in 1st Example of this invention. 本発明の実施例における直線ラックと外歯歯車と内歯歯車のつなぎ目を示す図である。It is a figure which shows the joint of the linear rack in the Example of this invention, an external gear, and an internal gear. 本発明の第２実施例のラック平歯車駆動機構を備えた車両用ヘッドアップディスプレイ装置のコンバイナ駆動装置を示す側面図である。It is a side view which shows the combiner drive device of the head-up display apparatus for vehicles provided with the rack spur gear drive mechanism of 2nd Example of this invention. 本発明の第２実施例におけるコンバイナ駆動装置の動作を説明する図である。It is a figure explaining operation | movement of the combiner drive device in 2nd Example of this invention.
　以下、本発明の一実施形態を説明する。本発明の一実施形態に係るラック平歯車機構は、平歯車と、第１ラック部と第２ラック部とを連続的に接続した複合ラックとを備えている。第１ラック部と第２ラック部とは、平歯車が複合ラック上を回転移動するときの軌道の曲率半径が互いに異なっている。複合ラックの第１ラック部と第２ラック部との境界に該第１ラック部と該第２ラック部とが共有する境界歯があり、この境界歯の両側面の形状が、第１ラック部側の側面と第２ラック部側の側面とでは形状が異なっている。これにより、第１ラック部と第２ラック部との境界でも平歯車はスムースに回転移動する。 Hereinafter, an embodiment of the present invention will be described. A rack spur gear mechanism according to an embodiment of the present invention includes a spur gear and a composite rack in which a first rack portion and a second rack portion are continuously connected. The first rack portion and the second rack portion are different from each other in the radius of curvature of the track when the spur gear rotates and moves on the composite rack. There is a boundary tooth shared by the first rack part and the second rack part at the boundary between the first rack part and the second rack part of the composite rack, and the shape of both side surfaces of the boundary tooth is the first rack part. The shape of the side surface on the side and the side surface on the second rack portion side are different. Accordingly, the spur gear smoothly rotates and moves at the boundary between the first rack portion and the second rack portion.
（第１実施例）図１は本発明の第１実施例のラック平歯車機構及びラック平歯車駆動機構を備えた車両用ヘッドアップディスプレイ装置のコンバイナ駆動装置を示す斜静図である。このコンバイナ駆動装置は、第１実施例のラック平歯車駆動機構１０と、コンバイナユニット２０とを有している。ラック平歯車駆動機構１０は、第１の平歯車１Ｌと、第２の平歯車１Ｒと、複合ラック２と、駆動手段としての回転装置３と、第１のガイド溝４Ｌと、第２のガイド溝５Ｌとを有している。なお、複合ラック２、第１及び第２のガイド溝４Ｌ，５Ｌはガイド部材１０Ａに形成されている。コンバイナユニット２０は、コンバイナ２０Ａと、コンバイナ保持部材２０Ｂとを有している。 (First Embodiment) FIG. 1 is a perspective view showing a combiner driving device of a vehicle head-up display device having a rack spur gear mechanism and a rack spur gear driving mechanism according to a first embodiment of the present invention. This combiner drive device has the rack spur gear drive mechanism 10 of the first embodiment and a combiner unit 20. The rack spur gear drive mechanism 10 includes a first spur gear 1L, a second spur gear 1R, a composite rack 2, a rotating device 3 as drive means, a first guide groove 4L, and a second guide. And a groove 5L. The composite rack 2 and the first and second guide grooves 4L and 5L are formed in the guide member 10A. The combiner unit 20 has a combiner 20A and a combiner holding member 20B.
　このコンバイナ駆動装置は、車両のダッシュボード内に搭載され、ヘッドアップディスプレイとして機能するときは、コンバイナ２０Ａは、ラック平歯車駆動機構１０により図１の状態から図１の上側に移動されてダッシュボードの上部に移動する。そして、コンバイナ２０Ａはその位置で図示しない表示器の表示光を反射する図示しない反射ミラーに対向され、反射ミラーで反射された表示光を運転席側のアイポイント側に向けて反射する。 When this combiner drive device is mounted in a dashboard of a vehicle and functions as a head-up display, the combiner 20A is moved from the state of FIG. 1 to the upper side of FIG. Move to the top of The combiner 20A is opposed to a reflection mirror (not shown) that reflects display light of a display (not shown) at that position, and reflects the display light reflected by the reflection mirror toward the eye point on the driver's seat side.
　第１及び第２の平歯車１Ｌ，１Ｒはコンバイナ保持部２０Ｂの下端に両側にそれぞれ配置されており、第１の平歯車１Ｌと第２の平歯車１Ｒとはコンバイナ保持部２０Ｂに軸支された歯車支持部材１１の端部に固定されている。回転装置３は、モータ３１、モータ３１の駆動軸に固定されたウォーム歯車３２、ウォーム歯車３２に歯合された減速歯車３３、減速歯車３３に歯合された減速歯車３４、減速歯車３４歯合された減速歯車３５、減速歯車３５歯合された傘歯車３６を有している。第１の平歯車１Ｌは傘歯車でもあり、回転装置３の傘歯車３６に歯合されている。 The first and second spur gears 1L and 1R are respectively arranged on both sides at the lower end of the combiner holding portion 20B, and the first spur gear 1L and the second spur gear 1R are pivotally supported by the combiner holding portion 20B. It is fixed to the end of the gear support member 11. The rotation device 3 includes a motor 31, a worm gear 32 fixed to the drive shaft of the motor 31, a reduction gear 33 meshed with the worm gear 32, a reduction gear 34 meshed with the reduction gear 33, and a reduction gear 34 meshing The reduction gear 35 and the bevel gear 36 meshed with the reduction gear 35 are provided. The first spur gear 1L is also a bevel gear, and meshes with the bevel gear 36 of the rotating device 3.
　以上の構成により、モータ３１の回転駆動力が、ウォーム歯車３２、減速歯車３３，３４，３５、傘歯車３６及び第１の平歯車１Ｌへと伝達され、第１の平歯車１Ｌが回転する。この第１の平歯車１Ｌの回転駆動力は歯車支持部材１１により第２の平歯車１Ｒに伝達される。これにより、第１及び第２の平歯車１Ｌ，１Ｒは同軸で回転する。なお、第１及び第２の平歯車１Ｌ，１Ｒは傘歯車以外の部分は同じ歯車仕様になっている。 With the above configuration, the rotational driving force of the motor 31 is transmitted to the worm gear 32, the reduction gears 33, 34, and 35, the bevel gear 36, and the first spur gear 1L, and the first spur gear 1L rotates. The rotational driving force of the first spur gear 1L is transmitted to the second spur gear 1R by the gear support member 11. Thereby, the 1st and 2nd spur gears 1L and 1R rotate coaxially. The first and second spur gears 1L and 1R have the same gear specifications except for the bevel gear.
　複合ラック２は、直線ラック２１と、外歯歯車２２と、内歯歯車２３とを連続的に接続して構成されている。直線ラック２１は略鉛直方向に設けられている。内歯歯車２３は第１のガイド溝４Ｌの上死点Ａを中心とする円弧上に設けられている。そして、外歯歯車２２は直線ラック２１と内歯歯車２３とを繋ぐように設けられている。 The composite rack 2 is configured by continuously connecting a linear rack 21, an external gear 22, and an internal gear 23. The linear rack 21 is provided in a substantially vertical direction. The internal gear 23 is provided on an arc centered on the top dead center A of the first guide groove 4L. The external gear 22 is provided so as to connect the linear rack 21 and the internal gear 23.
　第１のガイド溝４Ｌは複合ラック２から一定の間隔を保つように複合ラック２に対して平行に沿って形成されている。第２のガイド溝５Ｌは直線ラック２１の部分では該直線ラック２１に対して略平行に形成され、外歯歯車２２に対応する位置からは内歯歯車２３から離れる方向に僅かに傾斜して形成されている。 The first guide groove 4L is formed in parallel to the composite rack 2 so as to keep a certain distance from the composite rack 2. The second guide groove 5 </ b> L is formed substantially parallel to the linear rack 21 in the linear rack 21, and slightly inclined in a direction away from the internal gear 23 from a position corresponding to the external gear 22. Has been.
　第１の平歯車１Ｌと第２の平歯車１Ｒにはそれぞれ外側に突出する第１のピン１ａが設けられ、コンバイナ保持部２０Ｂの上部両側にはそれぞれ外側に突出する第２のピン２０ａが設けられている。第１のピン１ａは第１のガイド溝４Ｌに嵌め込まれ、第２のピン２０ａは第２のガイド溝５Ｌに嵌め込まれる。また、第１の平歯車１Ｌは複合ラック２に歯合される。なお、第２の平歯車１Ｒ側にも、図１に一点鎖線で略図として図示した複合ラック２Ｒ，第１のガイド溝４Ｒ及び第２のガイド溝５Ｒを備えており、第１の平歯車１Ｌと、複合ラック２Ｌ、第１のガイド溝４Ｌ及び第２のガイド溝５Ｌの構成と同様な構成を備えている。なお、以下の説明では第１の平歯車１Ｌ側を例に説明するが、第２の平歯車１Ｒ側の構成、作用効果も第１の平歯車１Ｌ側と同様であるため、第１実施例における以下の説明では符号ＬとＲは省略する。 The first spur gear 1L and the second spur gear 1R are each provided with a first pin 1a that protrudes outward, and the second pin 20a that protrudes outward is provided on each side of the upper portion of the combiner holding portion 20B. It has been. The first pin 1a is fitted into the first guide groove 4L, and the second pin 20a is fitted into the second guide groove 5L. Further, the first spur gear 1L is engaged with the composite rack 2. Note that the second spur gear 1R is also provided with a composite rack 2R, a first guide groove 4R, and a second guide groove 5R, which are schematically illustrated by a one-dot chain line in FIG. 1, and includes a first spur gear 1L. And a configuration similar to the configuration of the composite rack 2L, the first guide groove 4L, and the second guide groove 5L. In the following description, the first spur gear 1L side will be described as an example. However, since the configuration and operational effects on the second spur gear 1R side are the same as those of the first spur gear 1L side, the first embodiment In the following description, reference numerals L and R are omitted.
　図２は第１実施例におけるコンバイナ駆動装置の動作を説明する図であり、図中の符号４Ｃ，５Ｃで示す二点差線は第１のガイド溝４と第２のガイド溝５のそれぞれの中心線である。また、符号のＦで示す一点鎖線は車両のダッシュボードの上面であり、図の左側が運転席側である。平歯車１が回転装置３で回転駆動されると、平歯車１は複合ラック２に沿って移動し、コンバイナユニット２０は、第１のガイド溝４と第２のガイド溝５に倣って移動する。すなわち、図２(A) 、図２(B) 、図２(C) に示すように、コンバイナユニット２０は上昇し、平歯車１が外歯歯車２２から内歯歯車２３との境界の位置となったときに、第１のピン２０ａは、第１のガイド溝４の上死点Ａの位置に来る。そして、図２(D)に示すように、平歯車１が内歯歯車２３に沿って移動すると、コンバイナユニット２０は上死点Ａを回転中心として回転し、コンバイナ２０Ａが運転席側に傾斜する。 FIG. 2 is a diagram for explaining the operation of the combiner drive device in the first embodiment. The two-dot chain lines indicated by reference numerals 4C and 5C in the figure indicate the centers of the first guide groove 4 and the second guide groove 5, respectively. Is a line. Also, the alternate long and short dash line indicated by the symbol F is the upper surface of the dashboard of the vehicle, and the left side of the figure is the driver's seat side. When the spur gear 1 is rotationally driven by the rotating device 3, the spur gear 1 moves along the composite rack 2, and the combiner unit 20 moves following the first guide groove 4 and the second guide groove 5. . That is, as shown in FIGS. 2 (A), 2 (B), 2 (C), the combiner unit 20 is raised, and the spur gear 1 is located at the boundary position between the external gear 22 and the internal gear 23. When this happens, the first pin 20 a comes to the position of the top dead center A of the first guide groove 4. As shown in FIG. 2D, when the spur gear 1 moves along the internal gear 23, the combiner unit 20 rotates around the top dead center A, and the combiner 20A is inclined toward the driver's seat. .
　このように、第１のガイド溝４は、第１のピン１ａに係合するとともに複合ラック２と平行に形成され、第２のガイド溝５は、第２のピン２０ａに係合するとともに第１のガイド溝４から。ピン１ａ，ピン２０ａの間隔（一定距離）よりも小さな任意の距離を隔てて形成されている。したがって、コンバイナユニット２０の移動時に、第１のガイド溝４と第１のピン１ａがコンバイナユニット２０の移動軌道を規制する。かつ、第２のピン２０ａと第２のガイド溝５が、コンバイナユニット２０の移動軌道に対する角度を規制している。なお、第１のガイド溝４と第２のガイド溝５との距離とは、第１のガイド溝４上の任意の一点から第２のガイド溝５までの最短距離のことである。 Thus, the first guide groove 4 engages with the first pin 1a and is formed in parallel with the composite rack 2, and the second guide groove 5 engages with the second pin 20a and the second pin 20a. From one guide groove 4. It is formed with an arbitrary distance smaller than the interval (a constant distance) between the pin 1a and the pin 20a. Therefore, when the combiner unit 20 moves, the first guide groove 4 and the first pin 1a regulate the moving track of the combiner unit 20. In addition, the second pin 20a and the second guide groove 5 regulate the angle of the combiner unit 20 with respect to the moving track. The distance between the first guide groove 4 and the second guide groove 5 is the shortest distance from an arbitrary point on the first guide groove 4 to the second guide groove 5.
　図３は、直線ラック２１と外歯歯車２２と内歯歯車２３のつなぎ目を示す図である。図３(A) に一点鎖線で示す第１のガイド溝４の中心線４Ｃは第１の平歯車１の軌道である。図示のように、直線ラック２１における平歯車１の軌道の曲率半径は無限大であり、外歯歯車２２における平歯車１の軌道の曲率半径は有限正値であり、さらに、内歯歯車２３における平歯車１の軌道の曲率半径は有限負値である。 FIG. 3 is a view showing a joint of the linear rack 21, the external gear 22, and the internal gear 23. As shown in FIG. A center line 4C of the first guide groove 4 indicated by a one-dot chain line in FIG. 3 (A) is a track of the first spur gear 1. As shown in the figure, the radius of curvature of the track of the spur gear 1 in the linear rack 21 is infinite, the radius of curvature of the track of the spur gear 1 in the external gear 22 is a finite positive value, and further in the internal gear 23. The radius of curvature of the track of the spur gear 1 is a finite negative value.
　直線ラック２１と外歯歯車２２とはその境界に存在する歯を共有歯２Ａとしている。また、外歯歯車２２と内歯歯車２３とはその境界にある歯を共有歯２Ｂとしている。そして、共有歯２Ａの両側面２Ａ１，２Ａ２のうち、直線ラック２１側の側面２Ａ１の断面形状は、直線ラック２１の歯２１ａ（他の歯）の側面の断面形状と同一の形状とし、外歯歯車２２側の側面２Ａ２の断面形状は、外歯歯車２２の歯２２ａ（他の歯）と同一のインボリュート曲線としている。また、共有歯２Ｂの両側面２Ｂ１，２Ｂ２のうち、外歯歯車２２側の側面２Ｂ１の断面形状は、外歯歯車２２の歯２２ａ（他の歯）と同一のインボリュート曲線とし、内歯歯車２３側の側面２Ｂ２の断面形状は、内歯歯車２３の歯２３ａ（他の歯）と同一のインボリュート曲線としている。これにより、平歯車１が。これら共有歯２Ａ，２Ｂを通過するとき、この平歯車１と共有歯２Ａ，２Ｂとの噛み合いが適正になり、平歯車１の動作、ひいてはコンバイナユニット２０の移動動作がスムースになる。 The teeth existing at the boundary between the linear rack 21 and the external gear 22 are shared teeth 2A. Further, the external gear 22 and the internal gear 23 have teeth at the boundary as the shared tooth 2B. Of the both side surfaces 2A1, 2A2 of the shared tooth 2A, the cross-sectional shape of the side surface 2A1 on the linear rack 21 side is the same as the cross-sectional shape of the side surface of the teeth 21a (other teeth) of the linear rack 21, The cross-sectional shape of the side surface 2A2 on the gear 22 side is the same involute curve as the teeth 22a (other teeth) of the external gear 22. Further, of the both side surfaces 2B1 and 2B2 of the common tooth 2B, the cross-sectional shape of the side surface 2B1 on the external gear 22 side is the same involute curve as the tooth 22a (other teeth) of the external gear 22, and the internal gear 23 The cross-sectional shape of the side surface 2B2 on the side is the same involute curve as the teeth 23a (other teeth) of the internal gear 23. Thereby, the spur gear 1 is obtained. When passing through these shared teeth 2A and 2B, the meshing between the spur gear 1 and the shared teeth 2A and 2B becomes appropriate, and the operation of the spur gear 1 and thus the movement of the combiner unit 20 is smooth.
　第１実施例におけるコンバイナ駆動装置は、コンバイナユニット２０をダッシュボード内に略垂直に収納する構造であるが、以下の第２実施例のようにコンバイナユニット２０をダッシュボード内に略水平に収納する構造とすることもできる。図４は第２実施例のラック平歯車駆動機構を備えた車両用ヘッドアップディスプレイ装置のコンバイナ駆動装置を示す側面図、図５は第２実施例におけるコンバイナ駆動装置の動作を説明する図である。なお、第１実施例と同様な要素及び対応する要素には同符号を付記して、詳細な説明は省略する。 The combiner driving device in the first embodiment has a structure in which the combiner unit 20 is accommodated substantially vertically in the dashboard, but the combiner unit 20 is accommodated substantially horizontally in the dashboard as in the second embodiment below. It can also be a structure. FIG. 4 is a side view showing a combiner drive device of a vehicle head-up display device having a rack spur gear drive mechanism of the second embodiment, and FIG. 5 is a diagram for explaining the operation of the combiner drive device in the second embodiment. . In addition, the same code | symbol is attached | subjected to the element similar to 1st Example, and a corresponding element, and detailed description is abbreviate | omitted.
　この第２実施例のコンバイナ駆動装置における複合ラック２Ｘは、垂直に伸びる直線ラック２１Ｘは第１実施例の直線ラック２１より短くなっている。また、この第２実施形態の複合ラック２Ｘは、ダッシュボード内で水平方向（前後方向）に延びる直線ラック２４と、この直線ラック２４と直線ラック２１Ｘを繋ぐ内歯歯車２５とを有している。この内歯歯車２５と直線ラック２１Ｘとの境界の共有歯の形状（側面の形状）、及び内歯歯車２５と直線ラック２４との境界の共有歯の形状（側面の形状）は、その側面が対向するラックの歯と略同形状である。 In the combined rack 2X in the combiner drive device of the second embodiment, the straight rack 21X extending vertically is shorter than the straight rack 21 of the first embodiment. Further, the composite rack 2X of the second embodiment includes a linear rack 24 that extends in the horizontal direction (front-rear direction) in the dashboard, and an internal gear 25 that connects the linear rack 24 and the linear rack 21X. . The shape of the shared tooth at the boundary between the internal gear 25 and the linear rack 21X (the shape of the side surface) and the shape of the shared tooth at the boundary between the internal gear 25 and the linear rack 24 (the shape of the side surface) It is substantially the same shape as the teeth of the opposing rack.
　図４及び図５中の符号４ＣＸで示す二点差線は、第１のピン１ａが係合する前記第１のガイド溝４と同様な図示しない第１のガイド溝の中心線である、また、符号５ＣＸは、第２のピン２０ａが係合する前記第２のガイド溝５と同様な図示しない第２のガイド溝の中心線である。 4 and 5 is a center line of a first guide groove (not shown) similar to the first guide groove 4 with which the first pin 1a is engaged. Reference numeral 5CX denotes a center line of a second guide groove (not shown) similar to the second guide groove 5 with which the second pin 20a is engaged.
　図５に示すように、平歯車１が直線ラック２４上の端部にあるとき、コンバイナユニット２０は略水平の姿勢とされ、図示しないダッシュボード内に収容されている。平歯車１が回転装置３で回転駆動されると、平歯車１は複合ラック２Ｘ（及び中心線４ＣＸ）に沿って移動する。平歯車１が内歯歯車２５を通過すると直線ラック２１Ｘにより略垂直に上昇し、平歯車１が外歯歯車２２に移動する。この平歯車１が外歯歯車２２を越えると、第１実施例と同様に、平歯車１が内歯歯車２３に沿って移動し、コンバイナユニット２０は上死点Ａを回転中心として回転し、コンバイナ２０Ａが運転席側に傾斜する。 As shown in FIG. 5, when the spur gear 1 is at the end on the linear rack 24, the combiner unit 20 is in a substantially horizontal posture and is accommodated in a dashboard (not shown). When the spur gear 1 is rotationally driven by the rotating device 3, the spur gear 1 moves along the composite rack 2X (and the center line 4CX). When the spur gear 1 passes through the internal gear 25, the spur gear 1 moves up substantially vertically by the linear rack 21 </ b> X, and the spur gear 1 moves to the external gear 22. When the spur gear 1 exceeds the external gear 22, as in the first embodiment, the spur gear 1 moves along the internal gear 23, and the combiner unit 20 rotates about the top dead center A as the rotation center. The combiner 20A is inclined toward the driver's seat.
　以上、本発明の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。 As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention.
１Ｌ，１Ｒ　　平歯車
１ａ　　　　　第１のピン
２Ｌ，２Ｒ　　複合ラック
２１，２１Ｘ　直線ラック
２２　　　　　外歯歯車
２３　　　　　内歯歯車
２Ｘ　　　　　複合ラック
２４　　　　　直線ラック
２５　　　　　内歯ラック
３　　　　　　回転装置（駆動手段）
４Ｌ，４Ｒ　　第１のガイド溝
５Ｌ，５Ｒ　　第２のガイド溝
１０　　　　　ラック平歯車駆動機構
２０　　　　　コンバイナユニット
２０ａ　　　　第２のピン 1L, 1R Spur Gear 1a First Pin 2L, 2R Composite Rack 21, 21X Linear Rack 22 External Gear 23 Internal Gear 23 Internal Gear 2X Composite Rack 24 Linear Rack 25 Internal Gear Rack 3 Rotating Device (Drive Unit)
4L, 4R First guide grooves 5L, 5R Second guide grooves 10 Rack spur gear drive mechanism 20 Combiner unit 20a Second pin

Claims (8)

  1. 　平歯車と、該平歯車を歯合して回転移動させるラックであって前記回転移動の軌道の曲率半径が互いに異なる第１ラック部と第２ラック部とを連続的に接続した複合ラックと、を備え、
    　前記複合ラックの第１ラック部と第２ラック部との境界に該第１ラック部と該第２ラック部とが共有する共有歯があり、前記共有歯の両側面の形状が、
    　前記第１ラック部側の側面と前記第２ラック部側の側面とでは形状が異なることを特徴とするラック平歯車機構。     A spur gear, and a rack that meshes and rotates the spur gear, the first rack portion and the second rack portion having different curvature radii of the rotational movement orbits continuously connected, and With
    There is a shared tooth shared by the first rack portion and the second rack portion at the boundary between the first rack portion and the second rack portion of the composite rack, and the shapes of both side surfaces of the shared tooth are:
    A rack spur gear mechanism characterized in that the side surface on the first rack portion side and the side surface on the second rack portion side have different shapes.
  2. 　前記第１ラック部側の側面は第１ラック部の他の歯の側面と略同形であり、前記第２ラック部側の側面は第２ラック部の他の歯の側面と略同形であることを特徴とする請求項１に記載のラック平歯車機構。 The side surface on the first rack portion side is substantially the same shape as the other tooth side surface of the first rack portion, and the side surface on the second rack portion side is substantially the same shape as the other tooth side surface of the second rack portion. The rack spur gear mechanism according to claim 1.
  3. 　前記第１ラック部が、前記曲率半径が無限大である直線ラックであり、
    　前記第２ラック部が、前記曲率半径が有限正値である外歯歯車であることを特徴とする請求項２に記載のラック平歯車機構。     The first rack portion is a linear rack having an infinite curvature radius;
    The rack spur gear mechanism according to claim 2, wherein the second rack portion is an external gear whose curvature radius is a finite positive value.
  4. 　前記第１ラック部が、前記曲率半径が有限正値である外歯歯車であり、
    　前記第２ラック部が、前記曲率半径が有限負値である内歯歯車であることを特徴とする請求項２に記載のラック平歯車機構。     The first rack portion is an external gear whose curvature radius is a finite positive value;
    3. The rack spur gear mechanism according to claim 2, wherein the second rack portion is an internal gear whose curvature radius is a finite negative value.
  5. 　請求項１乃至４のいずれか一項に記載のラック平歯車機構と、前記平歯車を軸支する被駆動部材に固定されるとともに該平歯車を回転駆動する駆動手段とを備え、
    　前記駆動手段により前記平歯車を回転駆動することで、該駆動手段と前記被駆動部材とを該平歯車と共に前記複合ラックに沿って移動させることを特徴とするラック平歯車駆動機構。     A rack spur gear mechanism according to any one of claims 1 to 4, and a driving means that is fixed to a driven member that pivotally supports the spur gear and that rotationally drives the spur gear,
    A rack spur gear drive mechanism characterized in that the drive means and the driven member are moved along with the spur gear along the composite rack by rotationally driving the spur gear by the drive means.
  6. 　請求項５に記載のラック平歯車駆動機構を備えたヘッドアップディスプレイ装置のコンバイナユニットを駆動するコンバイナ駆動装置であって、
    　前記被駆動部材が前記コンバイナユニットであり、前記平歯車が該コンバイナユニットの両側部に設けられるとともに、前記コンバイナユニットの側部にて前記平歯車から突出する第１のピンと、該第１のピンからそれぞれ一定距離隔てた位置に突出する第２のピンとが設けられていることを特徴とするコンバイナ駆動装置。     A combiner drive device for driving a combiner unit of a head-up display device comprising the rack spur gear drive mechanism according to claim 5,
    The driven member is the combiner unit, the spur gear is provided on both sides of the combiner unit, and a first pin protruding from the spur gear on the side of the combiner unit, and the first pin And a second pin projecting to a position spaced apart from each other by a certain distance.
  7. 　前記第１のピンに係合するとともに前記複合ラックと平行に形成された第１のガイド溝と、前記第２のピンに係合するとともに前記第１のガイド溝から前記一定距離よりも小さな任意の距離を隔てて形成された第２のガイド溝とを備えられていることを特徴とする請求項６に記載のコンバイナ駆動装置。 A first guide groove that engages with the first pin and is formed in parallel with the composite rack, and an arbitrary one that engages with the second pin and is smaller than the predetermined distance from the first guide groove. The combiner drive device according to claim 6, further comprising a second guide groove formed at a distance from the second guide groove.
  8. 　前記コンバイナユニットの移動時に、前記第１のガイド及び第１のピンが前記コンバイナユニットの移動軌道を規制し、前記第２のピン及び第２のガイド溝が、該コンバイナユニットの移動軌道に対する角度を規制することを特徴とする請求項７のコンバイナ駆動装置。 During the movement of the combiner unit, the first guide and the first pin regulate the moving track of the combiner unit, and the second pin and the second guide groove form an angle with respect to the moving track of the combiner unit. The combiner driving device according to claim 7, wherein the combiner driving device is regulated.
PCT/JP2013/060053 2013-04-02 2013-04-02 Rack and spur gear mechanism, rack and spur gear drive mechanism and rack and drive device WO2014162512A1 (en)

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WO2017010530A1 (en) * 2015-07-14 2017-01-19 パイオニア株式会社 Display device
DE102015111617A1 (en) * 2015-07-17 2017-01-19 Valeo Schalter Und Sensoren Gmbh Display device for a motor vehicle with a gearing having guideway and motor vehicle

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WO2017010530A1 (en) * 2015-07-14 2017-01-19 パイオニア株式会社 Display device
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