WO2021029384A1 - Suspended pedal and pedal hanger - Google Patents

Suspended pedal and pedal hanger Download PDF

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Publication number
WO2021029384A1
WO2021029384A1 PCT/JP2020/030444 JP2020030444W WO2021029384A1 WO 2021029384 A1 WO2021029384 A1 WO 2021029384A1 JP 2020030444 W JP2020030444 W JP 2020030444W WO 2021029384 A1 WO2021029384 A1 WO 2021029384A1
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Prior art keywords
pedal
crank
hanger
shaft
hanging
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PCT/JP2020/030444
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French (fr)
Japanese (ja)
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富雄 柿見
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富雄 柿見
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Publication of WO2021029384A1 publication Critical patent/WO2021029384A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • B62M3/08—Pedals

Definitions

  • the present invention relates to a pedal and a pedal hanger attached to a crank of a bicycle or the like.
  • the pedal which is one of the components of a bicycle, is generally configured such that a pedal body having a tread surface to which the pedaling force of an occupant is applied is pivotally supported on a pedal shaft via a bearing (Non-Patent Document 1). Further, in recent years, a foldable pedal (for example, Patent Document 1) in which the pedal body can be folded so that the tread surface is vertical, and a binding pedal (for example, a binding pedal) in which the sole is fixed to the pedal body via a fastener called a cleat. For example, various types of pedals such as Patent Document 2) are widely used.
  • An object of the present invention is to provide a pedal and a pedal hanger that can be stepped on with a softer feeling than before.
  • the pedal according to the present invention includes a pedal having a tread surface to which a pedaling force is applied, and a pedal hanger that is rotatably suspended at the end of a crank and the pedal is attached to a lower portion. It is characterized by being configured in a hanging manner.
  • the pedal hanger has a shaft member screwed to the crank, and the shaft member is pivotally supported via a bearing.
  • the pedal hanger is characterized by having a screw hole.
  • the pedal includes a pedal shaft that can be screwed to the crank, the crank is provided with a pedal shaft hole that can be screwed to the pedal shaft, and the shaft member is screwed to the pedal shaft hole. It is characterized in that the pedal shaft is screwed into the screw hole.
  • the pedal hanger according to the present invention is characterized in that a pedal having a tread surface to which a pedaling force is applied is attached to the lower part by being rotatably suspended from the end of the crank.
  • the pedal hanger swings, so that when the pedal is depressed, a pulling force acts in the direction in which the crank is to be rotated. There is. Further, even if there is some variation in the direction of the pedal depressing force, the pedal hanger can swing appropriately and act in the direction of pulling the crank. As a result, the pedal can be depressed with a softer feeling than before.
  • the hanging pedal 10 includes a known bicycle pedal 20 that is widely used and a bicycle crank 30 that is also known according to the embodiment. They are connected to each other via a hanger 40.
  • the bicycle pedal 20 is a general-purpose part having a structure classified into a shape called an integrated type.
  • the bicycle pedal 20 includes a pedal body 22 having a tread surface 22A to which the pedaling force of an occupant is applied.
  • the pedal body 22 has internal bearing structures (not shown) on the inside and outside thereof, and is rotatably supported around the axis C1 of the pedal shaft 24.
  • a male screw portion 24M (FIG. 2) is formed on the outer peripheral surface of the end portion of the pedal shaft 24 protruding from the inner portion of the pedal body 22.
  • the crank 30 is a basic component of a bicycle in which the base end portion 30A is fixed to a crankshaft (not shown) and rotates integrally with the crankshaft.
  • a pedal shaft hole 32 (FIG. 2) is provided at the end portion 30B on the tip end side of the crank 30.
  • a female screw portion 32F is formed on the inner peripheral surface of the pedal shaft hole 32. The female screw portion 32F of the pedal shaft hole 32 is configured to be screwable with the male screw portion 24M of the pedal shaft 24.
  • the pedal hanger 40 has a shaft member 42 having a male screw portion 42M (FIG. 2) partially formed on the outer peripheral surface.
  • a bearing 44 is built in the upper end 40A of the pedal hanger 40.
  • the shaft member 42 is pivotally supported by the upper end 40A of the pedal hanger 40 via the bearing 44.
  • a screw hole 46 is provided at the lower end 40B of the pedal hanger 40.
  • a female screw portion 46F is formed on the inner peripheral surface of the screw hole 46.
  • the male screw portion 24M of the pedal shaft 24 is screwed into the female screw portion 46 of the screw hole 46.
  • the pedal body 22 of the bicycle pedal 20 is attached to the lower end 40B of the pedal hanger 40.
  • the male screw portion 42M of the shaft member 42 is screwed with the female screw portion 32F of the pedal shaft hole 32.
  • the upper end 40A of the pedal hanger 40 is attached to the end 30B on the tip end side of the crank 30 in a state of being rotatably suspended around the axis C2 of the shaft member 42. That is, in the present embodiment, the bicycle pedal 20 including the pedal body 22 is attached by the pedal hanger 40 in a state of being suspended from the end portion 30B on the tip end side of the crank 30.
  • the position of the axis C1 of the pedal shaft 24 is shifted downward from the rotation axis C2 of the pedal hanger 40 (the axis C2 of the shaft member 42).
  • the position of the tread surface 22A of the pedal body 22 is also configured to be lower than the central axis (axis center C2 of the shaft member 42) of the pedal shaft hole 32 of the crank 30.
  • the distance D (FIG. 1) between the axis C1 of the pedal shaft 24 and the axis C2 of the shaft member 42 is not particularly limited, but is assumed to be about 30 mm to 50 mm.
  • the distance between the axes D is based on the fact that most commercially available bicycle cranks are designed in the range of 150 mm to 170 mm, but the suspension pedal 10 has a length other than this range. Of course, it may be applied to cranks, for example, cranks for infant bicycles and cranks for professional bicycles.
  • crank 30 shown in each figure is assumed to rotate in the clockwise direction (direction of the arc arrow shown in FIGS. 4 to 6), and when specifying the rotation position and the rotation section of the crank 30, " It will be expressed by comparing it to "time”. For example, the crank 30 shown in FIG. 3 is at the "0 o'clock position”.
  • the crank 30 When the pedal 20 is continuously depressed, as shown in FIG. 5, the crank 30 is pulled by the pedal hanger 40 as before, and from the "3 o'clock position" to the bottom dead center "6 o'clock position". Rotate to. In this rotation section, the crank 30 draws a rotation trajectory of a lower right 1/4 arc of a perfect circle indicated by the above-mentioned two-dot chain line.
  • the pedal 20 has a 1/4 arc-shaped (thick broken line) rotating trajectory that passes outside the perfect circle that is the rotating trajectory of the crank 30 by a distance slightly smaller than the above-mentioned inter-axis distance D. Will be drawn.
  • FIG. 7 shows a comparison diagram of the rotation trajectories of the crank 30 and the pedal 20 in the series of movements of the hanging pedal 10 described above.
  • the crank 30 draws a rotation trajectory on the circumference of the perfect circle indicated by the two-point chain line, but in the present embodiment, the occupant operates the pedal 20 with his / her foot on the right side of this perfect circle. It is a rotation section of a semicircle. Then, in this section, when the pedal 20 is depressed, a pulling force for rotating the crank 30 in the clockwise direction always acts.
  • the crank 20 passes outside the circumference which is the rotation trajectory of the crank 30. That is, in this section PS, the distance from the rotation axis of the crank 30 to the pedal 20 to which the pedaling force is applied is substantially extended. Therefore, the crank 30 can be rotated efficiently.
  • the pedal hanger 40 can swing appropriately and act in the direction in which the crank 30 is pulled. This makes it less likely that events such as depressing the pedal and losing balance will occur in conventional pedals. This is an effect peculiar to the hanging pedal 10 that depresses the pedal 20 and rotates the crank 30 by "pulling force”, and at the same time, it is between the conventional pedal that depresses the pedal and rotates the crank by "pushing force”. It is also one of the big differences.
  • the rotation trajectory of the pedal 20 deviates downward by the above-mentioned inter-axis distance D from the rotation trajectory of the crank 30, the diameter of the rotation trajectory in the vertical direction is substantially the same. Moreover, the series of movements described above is performed while the pedal 20 maintains the horizontal posture. Therefore, the occupant can step on the pedal 20 with almost no discomfort as compared with the conventional pedal. Not only that, the lower the rotation trajectory of the pedal 20, the easier it is to bend and stretch the legs.
  • a series of movements as described above is realized by attaching the pedal 20 in a state of being suspended from the end portion 30B of the crank 30 by the pedal hanger 40 having the above configuration. Will be done. As a result, the pedal 20 can be depressed with a softer feeling than before.
  • the present invention is not limited to the above-described embodiment, and the present invention is, for example, implemented in a modified form as follows. It doesn't matter.
  • the pedal hanger 40 has been illustrated as an integral part, but may be a combination of a plurality of parts. .. Specifically, it may be carried out in the form of the pedal hanger 50 shown in FIG.
  • the pedal hanger 50 includes a shaft member 52 having a male screw portion 52M formed on the outer peripheral surface thereof.
  • the shaft member 52 is rotatably supported by the bearing 54.
  • the bearing 54 is sandwiched between the flanged fasteners 56A and 56B, which are split in half.
  • the left and right flange portions 56AL, 56AR, 56BL, 56BR of each of these sets of fasteners 56A and 56B have through holes 60AL and 60AR (the through holes of the flange portions 56BL and 56BR are not shown) at corresponding positions. It has been opened.
  • the fasteners 56A and 56B are fastened to each other with fixing brackets (for example, bolts and nuts) (not shown) inserted through the through holes corresponding to the upper and lower sides, and the bearing 54 is sandwiched.
  • An arm 62 is provided on the fastener 56B arranged on the lower side.
  • the arm 62 is provided with a screw hole 64 in which a female screw portion 64F is formed on the inner peripheral surface.
  • halved fasteners 56A and 56B are known parts that are also used for commercially available unicycles, and therefore have excellent versatility. Further, if a plurality of types of parts having different lengths of the arm 62 are prepared, it is easy to adjust and select the distance between the shaft centers between the shaft member 52 and the pedal shaft.
  • a pedal having a rotatable pedal body is attached to the pedal hanger, but the pedal body does not necessarily have to be rotatable.
  • a thin plate-shaped pedal member may be fixed to the lower part of the pedal hanger. The point is that a pedal having a tread on the tip of the crank should be suspended.
  • each of the above embodiments and modifications can be applied to either the left or right crank. Further, each of the above-described embodiments and modifications may be attached to either one of the left and right cranks, or may be attached to both the left and right cranks.
  • Each of the hanging pedal and the pedal hanger according to the present invention can be used not only for a general bicycle but also for, for example, a bicycle type training machine.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)

Abstract

[Problem] To provide a pedal and a pedal hanger which can be depressed with a softer feeling than in the past. [Solution] A pedal 20 having a tread surface 22A to which a tread force is applied is configured as a suspended type by being attached to a lower end part 40B of a pedal hanger 40 rotatably suspended from an end part 30B of a crank 30. According to a suspended pedal 10 configured in this manner, the pedal hanger 40 pivots, and thus when the pedal 20 is depressed, a pulling force acts in a direction which attempts to rotate the crank 30. Additionally, even if some variation arises in the direction of the force with which the pedal 20 is depressed, the pedal hanger 40 can pivot appropriately to cause the force to act in a direction that pulls the crank.

Description

つり下げ式ペダル及びペダルハンガーSuspended pedals and pedal hangers
　本発明は、自転車等のクランクに取り付けられるペダル及びペダルハンガーに関する。 The present invention relates to a pedal and a pedal hanger attached to a crank of a bicycle or the like.
　自転車の構成部品の一つであるペダルは、乗員の踏力が加わる踏面を有するペダル体がベアリングを介してペダル軸に軸支された構成のものが一般的である（非特許文献１）。また、近年においては、踏面が鉛直になるようにペダル体を折り畳み可能な折り畳み型ペダル（例えば、特許文献１）や、クリートと呼ばれる留め具を介して靴底をペダル体に固定するビンディングペダル（例えば、特許文献２）など、様々な態様のペダルが広く一般に普及している。 The pedal, which is one of the components of a bicycle, is generally configured such that a pedal body having a tread surface to which the pedaling force of an occupant is applied is pivotally supported on a pedal shaft via a bearing (Non-Patent Document 1). Further, in recent years, a foldable pedal (for example, Patent Document 1) in which the pedal body can be folded so that the tread surface is vertical, and a binding pedal (for example, a binding pedal) in which the sole is fixed to the pedal body via a fastener called a cleat. For example, various types of pedals such as Patent Document 2) are widely used.
実開平５－４２０８７号公報Jikkenhei 5-42087 特開２０１４－２１３８５１号公報Japanese Unexamined Patent Publication No. 2014-213851
　本発明は、従来よりもソフトな感覚で踏み込むことができるペダル及びペダルハンガーを提供することを目的とする。 An object of the present invention is to provide a pedal and a pedal hanger that can be stepped on with a softer feeling than before.
　上記の目的を達成するため、本発明に係るペダルは、踏力が加わる踏面を有するペダルと、クランクの端部に回転自在につり下げられ、前記ペダルが下部に取り付けられるペダルハンガーと、を備え、つり下げ式に構成されていることを特徴とする。 In order to achieve the above object, the pedal according to the present invention includes a pedal having a tread surface to which a pedaling force is applied, and a pedal hanger that is rotatably suspended at the end of a crank and the pedal is attached to a lower portion. It is characterized by being configured in a hanging manner.
　前記ペダルハンガーは、前記クランクにネジ止めされる軸部材を有し、当該軸部材がベアリングを介して軸支されていることを特徴とする。 The pedal hanger has a shaft member screwed to the crank, and the shaft member is pivotally supported via a bearing.
　また、前記ペダルハンガーには、ネジ穴が開設されていることを特徴とする。 In addition, the pedal hanger is characterized by having a screw hole.
　さらに、前記ペダルは、前記クランクにネジ止め可能なペダル軸を含み、前記クランクには、前記ペダル軸と螺合可能なペダル軸穴が開設されており、前記軸部材が前記ペダル軸穴と螺合し、前記ネジ穴には前記ペダル軸が螺合されることを特徴とする。 Further, the pedal includes a pedal shaft that can be screwed to the crank, the crank is provided with a pedal shaft hole that can be screwed to the pedal shaft, and the shaft member is screwed to the pedal shaft hole. It is characterized in that the pedal shaft is screwed into the screw hole.
　また、本発明に係るペダルハンガーは、クランクの端部に回転自在につり下げられ、踏力が加わる踏面を有するペダルが下部に取り付けられることを特徴とする。 Further, the pedal hanger according to the present invention is characterized in that a pedal having a tread surface to which a pedaling force is applied is attached to the lower part by being rotatably suspended from the end of the crank.
　上記構成を有する本発明のつり下げ式ペダル及びペダルハンガーによれば、ペダルハンガーが揺動するので、ペダルを踏み込むと、クランクを回転させようとする方向へ引っ張る力が作用するように構成されている。また、ペダルを踏み込む力の方向に多少のばらつきが生じたとしても、ペダルハンガーが適当に揺動し、クランクを引っ張る方向に作用させることができる。その結果、ペダルを従来よりもソフトな感覚で踏み込むことが可能となる。 According to the hanging pedal and pedal hanger of the present invention having the above configuration, the pedal hanger swings, so that when the pedal is depressed, a pulling force acts in the direction in which the crank is to be rotated. There is. Further, even if there is some variation in the direction of the pedal depressing force, the pedal hanger can swing appropriately and act in the direction of pulling the crank. As a result, the pedal can be depressed with a softer feeling than before.
実施形態に係るつり下げ式ペダルを示す斜視図である。It is a perspective view which shows the hanging type pedal which concerns on embodiment. 実施形態に係るペダルハンガーを含む上記ペダルの分解斜視図である。It is an exploded perspective view of the said pedal including the pedal hanger which concerns on embodiment. 上記つり下げ式ペダルの一連の動きを説明するための概略図である。It is the schematic for demonstrating a series of movements of the said hanging type pedal. 上記つり下げ式ペダルの一連の動きを説明するための概略図である。It is the schematic for demonstrating a series of movements of the said hanging type pedal. 上記つり下げ式ペダルの一連の動きを説明するための概略図である。It is the schematic for demonstrating a series of movements of the said hanging type pedal. 上記つり下げ式ペダルの一連の動きを説明するための概略図である。It is the schematic for demonstrating a series of movements of the said hanging type pedal. クランクの回転軌道とペダルの回転軌道の対比図である。It is a comparison diagram of the rotation trajectory of a crank and the rotation trajectory of a pedal. ペダルハンガーの他の実施形態を示す（ａ）斜視図、及び（ｂ）側面図である。It is (a) perspective view and (b) side view which shows the other embodiment of a pedal hanger.
　以下、本発明に係るつり下げ式ペダルとペダルハンガー各々の実施形態について、図面を参照しながら説明する。 Hereinafter, embodiments of the hanging pedal and the pedal hanger according to the present invention will be described with reference to the drawings.
　図１及び図２に示すように、実施形態に係るつり下げ式ペダル１０は、広く一般に普及している公知の自転車用ペダル２０と、同じく公知の自転車用クランク３０とが、実施形態に係るペダルハンガー４０を介して相互に連結されたものである。 As shown in FIGS. 1 and 2, the hanging pedal 10 according to the embodiment includes a known bicycle pedal 20 that is widely used and a bicycle crank 30 that is also known according to the embodiment. They are connected to each other via a hanger 40.
　自転車用ペダル２０は、一体形と呼ばれる形状に分類される構成の汎用部品である。自転車用ペダル２０は、乗員の踏力が加わる踏面２２Ａを有するペダル体２２を含む。ペダル体２２は、その内側と外側の各々に内部ベアリング構造（不図示）を有し、ペダル軸２４の軸心Ｃ１を中心として回転自在に軸支されている。ペダル体２２の内側部分から突出したペダル軸２４端部の外周面には、雄ネジ部２４Ｍ（図２）が形成されている。 The bicycle pedal 20 is a general-purpose part having a structure classified into a shape called an integrated type. The bicycle pedal 20 includes a pedal body 22 having a tread surface 22A to which the pedaling force of an occupant is applied. The pedal body 22 has internal bearing structures (not shown) on the inside and outside thereof, and is rotatably supported around the axis C1 of the pedal shaft 24. A male screw portion 24M (FIG. 2) is formed on the outer peripheral surface of the end portion of the pedal shaft 24 protruding from the inner portion of the pedal body 22.
　クランク３０は、基端部３０Ａがクランク軸（不図示）に固定されてクランク軸と一体回転する、自転車の基本的な構成部品である。クランク３０の先端側の端部３０Ｂには、ペダル軸穴３２（図２）が開設されている。ペダル軸穴３２の内周面には、雌ネジ部３２Ｆが形成されている。このペダル軸穴３２の雌ネジ部３２Ｆは、ペダル軸２４の雄ネジ部２４Ｍと螺合可能な構成となっている。 The crank 30 is a basic component of a bicycle in which the base end portion 30A is fixed to a crankshaft (not shown) and rotates integrally with the crankshaft. A pedal shaft hole 32 (FIG. 2) is provided at the end portion 30B on the tip end side of the crank 30. A female screw portion 32F is formed on the inner peripheral surface of the pedal shaft hole 32. The female screw portion 32F of the pedal shaft hole 32 is configured to be screwable with the male screw portion 24M of the pedal shaft 24.
　ペダルハンガー４０は、外周面に雄ネジ部４２Ｍ（図２）が一部形成された軸部材４２を有する。ペダルハンガー４０の上側の端部４０Ａには、ベアリング４４が内蔵されている。このベアリング４４を介して、軸部材４２がペダルハンガー４０の上側の端部４０Ａに軸支されている。ペダルハンガー４０の下側の端部４０Ｂには、ネジ穴４６が開設されている。このネジ穴４６の内周面には、雌ネジ部４６Ｆが形成されている。 The pedal hanger 40 has a shaft member 42 having a male screw portion 42M (FIG. 2) partially formed on the outer peripheral surface. A bearing 44 is built in the upper end 40A of the pedal hanger 40. The shaft member 42 is pivotally supported by the upper end 40A of the pedal hanger 40 via the bearing 44. A screw hole 46 is provided at the lower end 40B of the pedal hanger 40. A female screw portion 46F is formed on the inner peripheral surface of the screw hole 46.
　ネジ穴４６の雌ネジ部４６には、ペダル軸２４の雄ネジ部２４Ｍが螺合される。これにより、ペダルハンガー４０の下側の端部４０Ｂに自転車用ペダル２０のペダル体２２が取り付けられる。一方、軸部材４２の雄ネジ部４２Ｍは、ペダル軸穴３２の雌ネジ部３２Ｆと螺合する。これにより、ペダルハンガー４０の上側の端部４０Ａが、軸部材４２の軸心Ｃ２を中心として回転自在につり下げられた状態でクランク３０の先端側の端部３０Ｂに取り付けられる。すなわち、本実施形態では、ペダル体２２を含む自転車用ペダル２０がペダルハンガー４０によってクランク３０の先端側の端部３０Ｂにつり下げられた状態で取り付けられることとなる。 The male screw portion 24M of the pedal shaft 24 is screwed into the female screw portion 46 of the screw hole 46. As a result, the pedal body 22 of the bicycle pedal 20 is attached to the lower end 40B of the pedal hanger 40. On the other hand, the male screw portion 42M of the shaft member 42 is screwed with the female screw portion 32F of the pedal shaft hole 32. As a result, the upper end 40A of the pedal hanger 40 is attached to the end 30B on the tip end side of the crank 30 in a state of being rotatably suspended around the axis C2 of the shaft member 42. That is, in the present embodiment, the bicycle pedal 20 including the pedal body 22 is attached by the pedal hanger 40 in a state of being suspended from the end portion 30B on the tip end side of the crank 30.
　上記構成からなるつり下げ式ペダル１０では、ペダル軸２４の軸心Ｃ１の位置がペダルハンガー４０の回転軸心（軸部材４２の軸心Ｃ２）よりも下側へずれている。これに伴って、ペダル体２２の踏面２２Ａの位置もクランク３０のペダル軸穴３２の中心軸（軸部材４２の軸心Ｃ２）より下側になるように構成されている。ペダル軸２４の軸心Ｃ１と軸部材４２の軸心Ｃ２との間の軸心間距離Ｄ（図１）については特に限定されるものではないが、概ね３０ｍｍ～５０ｍｍ程度を想定している。なお、この軸心間距離Ｄは、市販の自転車用クランクの多くが１５０ｍｍ～１７０ｍｍの範囲で設計されていることを考慮したものであるが、つり下げペダル１０は、この範囲以外の長さのクランク、例えば、幼児用自転車のクランクやプロ仕様の自転車のクランクに適用することとしても勿論構わない。 In the hanging pedal 10 having the above configuration, the position of the axis C1 of the pedal shaft 24 is shifted downward from the rotation axis C2 of the pedal hanger 40 (the axis C2 of the shaft member 42). Along with this, the position of the tread surface 22A of the pedal body 22 is also configured to be lower than the central axis (axis center C2 of the shaft member 42) of the pedal shaft hole 32 of the crank 30. The distance D (FIG. 1) between the axis C1 of the pedal shaft 24 and the axis C2 of the shaft member 42 is not particularly limited, but is assumed to be about 30 mm to 50 mm. The distance between the axes D is based on the fact that most commercially available bicycle cranks are designed in the range of 150 mm to 170 mm, but the suspension pedal 10 has a length other than this range. Of course, it may be applied to cranks, for example, cranks for infant bicycles and cranks for professional bicycles.
　続いて、図３～図６を適宜参照しながら、本実施形態のつり下げ式ペダル１０の一連の動きについて説明する。なお、説明の便宜上、各図に示すクランク３０は時計方向（図４～図６に示す円弧矢印の方向）へ回転するものとし、クランク３０の回転位置や回転区間を特定する場合には、「時刻」に例えて表現することとする。例えば、図３に示すクランク３０は「０時の位置」にある。 Subsequently, a series of movements of the hanging pedal 10 of the present embodiment will be described with reference to FIGS. 3 to 6 as appropriate. For convenience of explanation, the crank 30 shown in each figure is assumed to rotate in the clockwise direction (direction of the arc arrow shown in FIGS. 4 to 6), and when specifying the rotation position and the rotation section of the crank 30, " It will be expressed by comparing it to "time". For example, the crank 30 shown in FIG. 3 is at the "0 o'clock position".
　まずは、図３を参照しながら、クランク３０が「０時の位置」にあるときの動きを説明する。この「０時の位置」は、通常であれば上死点となるのだが、つり下げ式ペダル１０では、ペダル２０を前方へ押し出すと、部分拡大図に示すように、ペダルハンガー４０が鉛直姿勢から前方へと揺動する。このとき、クランク３０のペダルハンガー４０との連結部分には、クランク３０を時計方向へ回転させようとする方向（ここでは水平方向）へクランク３０を引っ張る力Ｆが作用する。その結果、クランク３０は、ペダルハンガー４０に引っ張られながら「０時の位置」を通過する。すなわち、つり下げペダル１０では、従来でいうところの「上死点」が実質的になくなるのである。 First, the movement when the crank 30 is in the "0 o'clock position" will be described with reference to FIG. This "0 o'clock position" is normally the top dead center, but with the hanging pedal 10, when the pedal 20 is pushed forward, the pedal hanger 40 is in a vertical position as shown in the partially enlarged view. Swing forward from. At this time, a force F that pulls the crank 30 in the direction in which the crank 30 is to be rotated clockwise (here, the horizontal direction) acts on the connecting portion of the crank 30 with the pedal hanger 40. As a result, the crank 30 passes through the "0 o'clock position" while being pulled by the pedal hanger 40. That is, in the hanging pedal 10, the conventional "top dead center" is substantially eliminated.
　そこからさらにペダル２０を踏み込むと、図４に示すように、「０時の位置」を通過したクランク３０は、常に、ペダルハンガー４０に引っ張られる格好で、「３時の位置」まで回転する。ここまでの回転区間において、クランク３０は、クランク軸の回転軸心を中心とする二点鎖線で示す正円の右上１／４円弧の回転軌道を描く。これに対し、ペダル２０は、この正円が上下方向に扁平した楕円の右上１／４楕円弧状（太い破線）の回転軌道を描くこととなる。 When the pedal 20 is further depressed from there, as shown in FIG. 4, the crank 30 that has passed the "0 o'clock position" is always pulled by the pedal hanger 40 and rotates to the "3 o'clock position". In the rotation section up to this point, the crank 30 draws a rotation trajectory of the upper right 1/4 arc of a perfect circle indicated by a two-point chain line centered on the rotation axis of the crankshaft. On the other hand, the pedal 20 draws a rotation trajectory in the upper right 1/4 elliptical arc shape (thick broken line) of an ellipse whose perfect circle is flattened in the vertical direction.
　引き続きペダル２０を踏み込むと、図５に示すように、クランク３０は、これまでと同様に、ペダルハンガー４０に引っ張られながら、「３時の位置」から下死点となる「６時の位置」まで回転する。この回転区間では、クランク３０は、上記した二点鎖線で示す正円の右下１／４円弧の回転軌道を描く。これに対し、ペダル２０は、上記した軸心間距離Ｄよりも若干少ない距離の分だけ、クランク３０の回転軌道となる正円の外側を通過する１／４円弧状（太い破線）の回転軌道を描くこととなる。 When the pedal 20 is continuously depressed, as shown in FIG. 5, the crank 30 is pulled by the pedal hanger 40 as before, and from the "3 o'clock position" to the bottom dead center "6 o'clock position". Rotate to. In this rotation section, the crank 30 draws a rotation trajectory of a lower right 1/4 arc of a perfect circle indicated by the above-mentioned two-dot chain line. On the other hand, the pedal 20 has a 1/4 arc-shaped (thick broken line) rotating trajectory that passes outside the perfect circle that is the rotating trajectory of the crank 30 by a distance slightly smaller than the above-mentioned inter-axis distance D. Will be drawn.
　なお、「６時の位置」から「０時の位置」までの回転区間、クランク３０は左右反対側のクランク（不図示）の回転力によって回転させられる。よって、この回転区間では、ペダルハンガー４０が鉛直姿勢を維持したまま、クランク３０が回転することとなる。そうすると、この回転区間において、クランク３０は、図６に示すように、上記した二点鎖線で示す正円の左半円弧の回転軌道を描く。これに対し、ペダル２０は、このクランク３０の左半円弧の回転軌道が上記した軸心間距離Ｄに相当する距離の分だけ、そのまま下側へずれた左半円弧状（太い破線）の回転軌道を描くこととなる。 The rotation section from the "6 o'clock position" to the "0 o'clock position", the crank 30 is rotated by the rotational force of the cranks (not shown) on the opposite sides. Therefore, in this rotation section, the crank 30 rotates while the pedal hanger 40 maintains the vertical posture. Then, in this rotation section, as shown in FIG. 6, the crank 30 draws a rotation trajectory of the left half arc of a perfect circle indicated by the above-mentioned two-dot chain line. On the other hand, the pedal 20 rotates in a left semicircular shape (thick broken line) in which the rotation trajectory of the left semicircle of the crank 30 is shifted downward by the distance corresponding to the above-mentioned inter-axis distance D. It will draw a trajectory.
　そして、クランク３０が「０時の位置」に復帰すると、その後、つり下げ式ペダル１０は、上記した一連の動きを再度繰り返すこととなる。 Then, when the crank 30 returns to the "0 o'clock position", the hanging pedal 10 will repeat the above-mentioned series of movements again.
　上記したつり下げ式ペダル１０の一連の動きにおけるクランク３０とペダル２０各々の回転軌道の比較図を図７に示す。上記したとおり、クランク３０は二点鎖線で示す正円の円周上に回転軌道を描くこととなるが、本実施形態において、ペダル２０を乗員が足で操作するのは、この正円の右半円弧の回転区間となる。そして、この区間では、ペダル２０を踏み込むと、常に、クランク３０を時計方向へ回転させようと引っ張る力が作用するようになっているのである。 FIG. 7 shows a comparison diagram of the rotation trajectories of the crank 30 and the pedal 20 in the series of movements of the hanging pedal 10 described above. As described above, the crank 30 draws a rotation trajectory on the circumference of the perfect circle indicated by the two-point chain line, but in the present embodiment, the occupant operates the pedal 20 with his / her foot on the right side of this perfect circle. It is a rotation section of a semicircle. Then, in this section, when the pedal 20 is depressed, a pulling force for rotating the crank 30 in the clockwise direction always acts.
　加えて、ペダル２０に加わる踏力が特に大きくなる回転区間ＰＳ（図７に示す円弧矢印の区間）では、クランク３０の回転軌道となる円周の外側をペダル２０が通過する。すなわち、この区間ＰＳでは、クランク３０の回転軸心から踏力が加わるペダル２０までの距離が実質的に伸長されることとなる。このため、クランク３０を効率よく回転させることが可能となる。 In addition, in the rotation section PS (section of the arc arrow shown in FIG. 7) where the pedaling force applied to the pedal 20 is particularly large, the pedal 20 passes outside the circumference which is the rotation trajectory of the crank 30. That is, in this section PS, the distance from the rotation axis of the crank 30 to the pedal 20 to which the pedaling force is applied is substantially extended. Therefore, the crank 30 can be rotated efficiently.
　また、仮に、ペダル２０を踏み込む方向（踏力ベクトルの方向）に多少のばらつきが生じたとしても、ペダルハンガー４０が適当に揺動し、クランク３０を引っ張る方向に作用させることができる。これにより、ペダルを踏み外してバランスを崩すといった従来のペダルに散見される事象が生じ難くなっている。これは、ペダル２０を踏み込んでクランク３０を「引っ張る力」で回転させるつり下げ式ペダル１０特有の効果であると同時に、ペダルを踏み込んでクランクを『押し下げる力』で回転させる従来のペダルとの間の大きな相違点の一つでもある。 Further, even if there is some variation in the direction in which the pedal 20 is stepped on (the direction of the pedaling force vector), the pedal hanger 40 can swing appropriately and act in the direction in which the crank 30 is pulled. This makes it less likely that events such as depressing the pedal and losing balance will occur in conventional pedals. This is an effect peculiar to the hanging pedal 10 that depresses the pedal 20 and rotates the crank 30 by "pulling force", and at the same time, it is between the conventional pedal that depresses the pedal and rotates the crank by "pushing force". It is also one of the big differences.
　そのうえ、ペダル２０の回転軌道は、クランク３０の回転軌道よりも上記した軸心間距離Ｄの分だけ下側へずれるものの、上下方向における回転軌道の直径は実質的に同じである。しかも、ペダル２０が水平姿勢を維持したままで、上記した一連の動きが行われる。そのため、乗員は、従来のペダルと比較して、ほとんど違和感なくペダル２０を踏み込むことができる。そればかりか、ペダル２０の回転軌道が低くなる分、従来よりも脚の曲げ伸ばし動作が楽になる。 Moreover, although the rotation trajectory of the pedal 20 deviates downward by the above-mentioned inter-axis distance D from the rotation trajectory of the crank 30, the diameter of the rotation trajectory in the vertical direction is substantially the same. Moreover, the series of movements described above is performed while the pedal 20 maintains the horizontal posture. Therefore, the occupant can step on the pedal 20 with almost no discomfort as compared with the conventional pedal. Not only that, the lower the rotation trajectory of the pedal 20, the easier it is to bend and stretch the legs.
　本実施形態のつり下げ式ペダル１０によれば、上記構成を有するペダルハンガー４０によってペダル２０をクランク３０の端部３０Ｂに吊り下げられた状態で取り付けることにより、上記したような一連の動きが実現される。その結果、ペダル２０を従来よりもソフトな感覚で踏み込むことが可能となるのである。 According to the hanging pedal 10 of the present embodiment, a series of movements as described above is realized by attaching the pedal 20 in a state of being suspended from the end portion 30B of the crank 30 by the pedal hanger 40 having the above configuration. Will be done. As a result, the pedal 20 can be depressed with a softer feeling than before.
　以上、本発明に係るつり下げ式ペダル及びペダルハンガーを実施形態に基づいて説明したが、本発明は上記した態様に限らないことは勿論であり、例えば、以下のように変形した形態で実施しても構わない。 Although the hanging pedal and the pedal hanger according to the present invention have been described above based on the embodiment, the present invention is not limited to the above-described embodiment, and the present invention is, for example, implemented in a modified form as follows. It doesn't matter.
＜他の実施形態＞
　上記実施形態では、ペダルハンガー４０は一体的な部品として設計された態様のものを例示したが、複数の部品を組み合わせた態様のものであってもよい。。具体的には、図８に示すペダルハンガー５０のような形態で実施することとしても構わない。 <Other embodiments>
In the above embodiment, the pedal hanger 40 has been illustrated as an integral part, but may be a combination of a plurality of parts. .. Specifically, it may be carried out in the form of the pedal hanger 50 shown in FIG.
　ペダルハンガー５０は、外周面に雄ネジ部５２Ｍが形成された軸部材５２を含む。この軸部材５２は、ベアリング５４に回転自在に軸支されている。ベアリング５４は、二つ割のフランジ付き留め金具５６Ａ，５６Ｂによって挟持されている。これら一組の留め金具５６Ａ，５６Ｂ各々の左右のフランジ部分５６ＡＬ，５６ＡＲ，５６ＢＬ，５６ＢＲには、それぞれ対応する位置に貫通孔６０ＡＬ，６０ＡＲ（フランジ部分５６ＢＬ，５６ＢＲの貫通孔については不図示）が開設されている。そして、上下に対応する貫通孔に挿通された不図示の固定金具（例えば。ボルトナットなど）で留め金具５６Ａ，５６Ｂ同士を締結し、ベアリング５４を挟持している。下側に配される留め金具５６Ｂには、アーム６２が設けられている。このアーム６２には、内周面に雌ネジ部６４Ｆが形成されたネジ穴６４が開設されている。 The pedal hanger 50 includes a shaft member 52 having a male screw portion 52M formed on the outer peripheral surface thereof. The shaft member 52 is rotatably supported by the bearing 54. The bearing 54 is sandwiched between the flanged fasteners 56A and 56B, which are split in half. The left and right flange portions 56AL, 56AR, 56BL, 56BR of each of these sets of fasteners 56A and 56B have through holes 60AL and 60AR (the through holes of the flange portions 56BL and 56BR are not shown) at corresponding positions. It has been opened. Then, the fasteners 56A and 56B are fastened to each other with fixing brackets (for example, bolts and nuts) (not shown) inserted through the through holes corresponding to the upper and lower sides, and the bearing 54 is sandwiched. An arm 62 is provided on the fastener 56B arranged on the lower side. The arm 62 is provided with a screw hole 64 in which a female screw portion 64F is formed on the inner peripheral surface.
　上記のような二つ割の留め金具５６Ａ，５６Ｂは、市販の一輪車にも利用される公知の部品であるため、汎用性に優れる。また、アーム６２の長さが異なる複数種類の部品を準備しておけば、軸部材５２とペダル軸との間の軸心間距離の調整や選択も容易である。 The above-mentioned halved fasteners 56A and 56B are known parts that are also used for commercially available unicycles, and therefore have excellent versatility. Further, if a plurality of types of parts having different lengths of the arm 62 are prepared, it is easy to adjust and select the distance between the shaft centers between the shaft member 52 and the pedal shaft.
＜変形例＞
（１）上記実施形態では、市販の自転車や自転車用部品をそのまま利用するため、ペダルハンガーをペダルとは別体の部品で構成したが、ペダルハンガーとペダルを一体の部品とした構成であっても勿論構わない。 <Modification example>
(1) In the above embodiment, since the commercially available bicycle or bicycle parts are used as they are, the pedal hanger is composed of parts separate from the pedal, but the pedal hanger and the pedal are integrated parts. Of course, it doesn't matter.
（２）上記実施形態では、ペダル体が回転自在なペダルをペダルハンガーに取り付けることとしたが、ペダル体が必ずしも回転自在である必要はない。例えば、薄板状のペダル部材をペダルハンガーの下部に固定してもよい。要は、クランクの先端に踏面を有するペダルがつり下げられていればよいのである。 (2) In the above embodiment, a pedal having a rotatable pedal body is attached to the pedal hanger, but the pedal body does not necessarily have to be rotatable. For example, a thin plate-shaped pedal member may be fixed to the lower part of the pedal hanger. The point is that a pedal having a tread on the tip of the crank should be suspended.
（３）上記実施形態及び変形例の各々が左右何れのクランクにも適用できることは言うまでもない。また、上記実施形態及び変形例の各々は、左右のクランクのいずれか一方に取り付けることとしてもよいし、左右両方のクランクに取り付けてもよい。 (3) Needless to say, each of the above embodiments and modifications can be applied to either the left or right crank. Further, each of the above-described embodiments and modifications may be attached to either one of the left and right cranks, or may be attached to both the left and right cranks.
　本発明は、その趣旨を逸脱しない範囲で当業者の知識に基づいて種々なる改良、修正、又は変形を加えた態様でも実施できる。また、同一の作用又は効果が生じる範囲内で、何れかの発明特定事項を他の技術に置換した形態で実施しても良い。 The present invention can also be carried out in a mode in which various improvements, modifications, or modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Further, within the range in which the same action or effect is produced, any of the invention-specific matters may be replaced with another technique.
　本発明に係るつり下げ式ペダル及びペダルハンガーの各々は、一般的な自転車に限らず、例えば、自転車型のトレーニングマシン等にも利用可能である。 Each of the hanging pedal and the pedal hanger according to the present invention can be used not only for a general bicycle but also for, for example, a bicycle type training machine.
　　　１０　　つり下げ式ペダル
　　　２０　　ペダル
　　　３０　　クランク
　　　４０　　ペダルハンガー

  10 Suspended pedal 20 Pedal 30 Crank 40 Pedal hanger

Claims (5)

  1. 　踏力が加わる踏面を有するペダルと、
    　クランクの端部に回転自在につり下げられ、前記ペダルが下部に取り付けられるペダルハンガーと、
    を備えることを特徴とする、つり下げ式ペダル。     A pedal with a tread that applies treading force,
    A pedal hanger that is rotatably hung on the end of the crank and the pedal is attached to the bottom.
    A hanging pedal characterized by being equipped with.
  2. 　前記ペダルハンガーは、前記クランクにネジ止めされる軸部材を有し、当該軸部材がベアリングを介して軸支されていることを特徴とする、請求項１に記載のつり下げ式ペダル。 The hanging pedal according to claim 1, wherein the pedal hanger has a shaft member screwed to the crank, and the shaft member is pivotally supported via a bearing.
  3. 　前記ペダルハンガーには、ネジ穴が開設されていることを特徴とする、請求項２に記載のつり下げ式ペダル。 The hanging pedal according to claim 2, wherein the pedal hanger is provided with a screw hole.
  4. 　前記ペダルは、前記クランクにネジ止め可能なペダル軸を含み、
    　前記クランクには、前記ペダル軸と螺合可能なペダル軸穴が開設されており、
    　前記軸部材が前記ペダル軸穴と螺合し、前記ネジ穴には前記ペダル軸が螺合されることを特徴とする、請求項３に記載のつり下げ式ペダル。     The pedal includes a pedal shaft that can be screwed to the crank.
    The crank is provided with a pedal shaft hole that can be screwed into the pedal shaft.
    The hanging pedal according to claim 3, wherein the shaft member is screwed into the pedal shaft hole, and the pedal shaft is screwed into the screw hole.
  5. 　クランクの端部に回転自在につり下げられ、踏力が加わる踏面を有するペダルが下部に取り付けられることを特徴とする、ペダルハンガー。

          A pedal hanger characterized in that a pedal that is rotatably suspended at the end of a crank and has a tread surface to which a pedaling force is applied is attached to the lower part.
PCT/JP2020/030444 2019-08-09 2020-08-07 Suspended pedal and pedal hanger WO2021029384A1 (en)

Applications Claiming Priority (2)

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JP2019-147678 2019-08-09
JP2019147678A JP6639726B1 (en) 2019-08-09 2019-08-09 Suspended pedals and pedal hangers

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WO2021029384A1 true WO2021029384A1 (en) 2021-02-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR759464A (en) * 1933-05-31 1934-02-03 Freewheel device for lengthening the cranks of a bicycle
JPH0339726B2 (en) * 1987-05-19 1991-06-14 Nippon Road
JP2007055332A (en) * 2005-08-23 2007-03-08 Tamagawa Gakuen Driving mechanism
KR100933303B1 (en) * 2009-06-24 2009-12-22 이창중 Apparatus for bicycle
US20110174096A1 (en) * 2003-08-12 2011-07-21 Florschuetz Franz Synchronous pedal crank drive for bicycles or similar
JP2015522476A (en) * 2012-07-11 2015-08-06 アンドリューズ、ウィリアム Improved bicycle pedal mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR759464A (en) * 1933-05-31 1934-02-03 Freewheel device for lengthening the cranks of a bicycle
JPH0339726B2 (en) * 1987-05-19 1991-06-14 Nippon Road
US20110174096A1 (en) * 2003-08-12 2011-07-21 Florschuetz Franz Synchronous pedal crank drive for bicycles or similar
JP2007055332A (en) * 2005-08-23 2007-03-08 Tamagawa Gakuen Driving mechanism
KR100933303B1 (en) * 2009-06-24 2009-12-22 이창중 Apparatus for bicycle
JP2015522476A (en) * 2012-07-11 2015-08-06 アンドリューズ、ウィリアム Improved bicycle pedal mechanism

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JP6639726B1 (en) 2020-02-05

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