WO2021029384A1 - Suspended pedal and pedal hanger - Google Patents
Suspended pedal and pedal hanger Download PDFInfo
- 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
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pedal
- crank
- hanger
- shaft
- hanging
- Prior art date
Links
Images
Classifications
-
- 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.
Landscapes
- 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
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.
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.
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, thepedal 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.
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
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.
(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
10Suspended pedal 20 Pedal 30 Crank 40 Pedal hanger
20 ペダル
30 クランク
40 ペダルハンガー
10
Claims (5)
- 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. - 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.
- 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.
- 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. - 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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019-147678 | 2019-08-09 | ||
JP2019147678A JP6639726B1 (en) | 2019-08-09 | 2019-08-09 | Suspended pedals and pedal hangers |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021029384A1 true WO2021029384A1 (en) | 2021-02-18 |
Family
ID=69320888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2020/030444 WO2021029384A1 (en) | 2019-08-09 | 2020-08-07 | Suspended pedal and pedal hanger |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6639726B1 (en) |
WO (1) | WO2021029384A1 (en) |
Citations (6)
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 |
-
2019
- 2019-08-09 JP JP2019147678A patent/JP6639726B1/en active Active
-
2020
- 2020-08-07 WO PCT/JP2020/030444 patent/WO2021029384A1/en active Application Filing
Patent Citations (6)
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 |
Also Published As
Publication number | Publication date |
---|---|
JP2021028200A (en) | 2021-02-25 |
JP6639726B1 (en) | 2020-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI277573B (en) | Bicycle chainring | |
US5549314A (en) | Non-circular front chain wheel for crank gear | |
US6468184B1 (en) | Combined cycling and stepping exerciser | |
US8257230B2 (en) | Elliptical trainer having two crank assemblies | |
WO2021029384A1 (en) | Suspended pedal and pedal hanger | |
US20070066449A1 (en) | Compound bicycle exercising device | |
NL2011337C2 (en) | CHAIN WHEEL AND CRANKE COMPOSITION WITH SUCH CHAIN WHEEL. | |
US535706A (en) | Crank-shaft for velocipedes | |
US20150108734A1 (en) | Hand-foot compound bicycle with double ratchet | |
US5902215A (en) | Exercise bicycle | |
US617028A (en) | Egmont koeiiler | |
US7445584B2 (en) | Hands and feet exerciser | |
TW201938228A (en) | Pedaler structure capable of saving storage space and changing moment of inertia and weight to provide different resistance | |
US1387771A (en) | Child's velocipede | |
TWM297904U (en) | Pedal structure for bicycle with one-sided shaft pivot | |
JP3133119U (en) | Bicycle and transmission crank | |
TWM549191U (en) | Simple spindle structure of bicycle pedal | |
JP2013086535A (en) | Weighted bicycle crank arm, and crank arm mounting weight | |
TW201240874A (en) | Thin pedal | |
TWI245004B (en) | Angle-adjustable front speed-changer of bicycles | |
KR200385439Y1 (en) | Compound bicycle exercising device | |
WO2017164512A1 (en) | Triple connection-structured crank arm equipped with bicycle pedal | |
JP2021079717A (en) | Drive assist device | |
CN2273281Y (en) | Folding crank for pedal of bicycle | |
TWM473986U (en) | Reciprocal up-and-down pedaling entertainment exercise device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20852670 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20852670 Country of ref document: EP Kind code of ref document: A1 |