JP2018121809A - Inclination adjustment device for bicycle trainer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inclination adjustment device for a bicycle trainer which is suitable for realizing a feeling near to actual bicycle riding.SOLUTION: A bicycle trainer 100 comprises: an elastic body 60 radially fixing a vertical spindle 44; an elastic body 62 radially fixing the vertical spindle 44; a coil spring 66a biasing the elastic body 62 in a separating direction; and a screw part 68 screwing into a thread groove 44a of the vertical spindle 44 to press the elastic body 62 in an approaching direction. The screw part 68 thus adjusts a spacing between the elastic body 60 and the elastic body 62. This mechanism realizes a feeling near to actual bicycle riding if the spring part 68 is adjusted according to the weight, etc. of a user to obtain an inclination angle of a level of actual bicycle riding when the user presses pedals 96.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an apparatus for adjusting the inclination of a bicycle in a bicycle trainer, and more particularly, to an apparatus for adjusting an inclination of a bicycle trainer suitable for realizing a driving feeling close to actual running.

As a conventional bicycle trainer, for example, a technique described in Patent Document 1 is known.
The bicycle trainer described in Patent Literature 1 includes a main body portion that is placed on the floor, a support shaft that is loosely inserted into the main body portion, and has the other end fixed to a fork end support means that supports the fork end portion of the bicycle. And an elastic portion arranged to surround at least a part of the other end side from the longitudinal center of the support shaft.

JP 2013-172775 A

  The bicycle trainer described in Patent Document 1 is one in which the bicycle moves back and forth and tilts left and right as the support shaft is elastically deformed by the force applied from the fork end, but ideally, the user steps on the pedal. Sometimes, an inclination angle similar to that of actual running can be obtained regardless of the weight and extension of the user. However, in the bicycle trainer described in Patent Document 1, since the elastic force of the elastic body is constant, the load applied to the elastic body varies depending on the weight of the user and the like. The inclination angle varies depending on the weight and the like. Therefore, there is a problem that it is difficult to obtain a driving feeling close to actual driving.

  Accordingly, the present invention has been made paying attention to such an unsolved problem of the conventional technology, and provides a bicycle trainer tilt adjustment device suitable for realizing a driving feeling close to actual driving. The purpose is to do.

  [Invention 1] In order to achieve the above object, an inclination adjustment device for a bicycle trainer according to Invention 1 is applied to a bicycle trainer having a support shaft that supports a front fork or a front wheel or a rear fork or a rear wheel of a bicycle. A first elastic body for fixing the support shaft in a radial direction; a second elastic body for fixing the support shaft in a radial direction; and the support of the first elastic body and the second elastic body. Adjusting means for adjusting the axial distance between the shafts.

  With such a configuration, when the distance between the first elastic body and the second elastic body is reduced, the degree of fluctuation of the support shaft in the load direction is increased, and the bicycle is easily inclined. If it is smaller, the distance between the first elastic body and the second elastic body may be reduced by the adjusting means.

  On the other hand, when the distance between the first elastic body and the second elastic body is increased, the degree to which the support shaft fluctuates in the load direction is reduced and the bicycle is less likely to be tilted. What is necessary is just to enlarge the space | interval of a 1st elastic body and a 2nd elastic body with an adjustment means.

  [Invention 2] Furthermore, the bicycle trainer inclination adjusting device according to Invention 2 is the bicycle trainer inclination adjusting device according to Invention 1, wherein the adjusting means moves the second elastic body in a separation direction away from the first elastic body. An urging means for urging, and a screw portion provided on a side of the second elastic body opposite to the first elastic body, screwed into a screw groove formed in the support shaft along the axial direction; Have

  With such a configuration, when the screw portion is rotated in the forward direction, the second elastic body is pushed by the screw portion in the approaching direction approaching the first elastic body. The distance between the bodies is reduced. On the other hand, when the screw portion is rotated in the reverse direction, the second elastic body urged by the urging means moves in the separation direction together with the screw portion, so that the interval between the first elastic body and the second elastic body is large. Become.

  [Invention 3] Furthermore, the bicycle trainer inclination adjusting device according to Invention 3 is the bicycle trainer inclination adjusting device according to Invention 1, wherein the adjusting means includes a slider that slides the first elastic body on the axis of the support shaft. Have.

  With such a configuration, when the slider is slid in the approaching direction, the distance between the first elastic body and the second elastic body is reduced. On the other hand, when the slider is slid in the separation direction, the distance between the first elastic body and the second elastic body is increased.

  [Invention 4] In addition, the bicycle trainer inclination adjusting device according to Invention 4 is the bicycle trainer inclination adjusting device according to any one of Inventions 1 to 3, wherein the support shaft is a front fork or a front wheel or a rear fork of the bicycle. The rear wheel is supported in the axial direction of the support shaft.

  [Invention 5] Furthermore, the bicycle trainer inclination adjusting device according to Invention 5 is the bicycle trainer inclination adjusting device according to any one of Inventions 1 to 3, wherein the support shaft is a front fork or a front wheel or a rear fork of the bicycle. The rear wheel is supported in the radial direction of the support shaft.

  As described above, according to the bicycle trainer inclination adjusting device of the first aspect of the invention, when the user depresses the pedal, the adjusting means is adjusted according to the weight of the user so that the inclination angle is the same as that of actual running. By adjusting, you can achieve a driving sensation close to actual driving. Further, it is not necessary to replace the elastic body for adjustment, and adjustment is easy because adjustment means is required. Further, since it is not necessary to fix one end of the support shaft to the main body as in the bicycle trainer described in Patent Document 1, there are less restrictions on the installation position and installation direction of the support shaft, and the size can be reduced.

  Furthermore, according to the bicycle trainer inclination adjusting device of the invention 2, the adjusting means is constituted by the urging means and the screw portion, so that the structure can be simplified.

  Furthermore, according to the bicycle trainer inclination adjusting device of the invention 3, the adjusting means is constituted by a slider, so that the structure can be simplified.

  Furthermore, according to the bicycle trainer inclination adjusting device of the fourth aspect, a vertical installation structure in which the support shaft is installed in the vertical direction can be adopted.

  Furthermore, according to the bicycle trainer inclination adjusting device of the fifth aspect, it is possible to adopt a horizontal installation structure in which the support shaft is installed in the horizontal direction.

1 is a perspective view of a bicycle trainer 100. FIG. 1 is a top view of a bicycle trainer 100. FIG. It is a front view of the bicycle trainer 100 seen from the AA line of FIG. It is sectional drawing of the front fork attachment part 16 and the motion controller 18 along the BB line of FIG. It is a figure which shows the behavior of the bicycle 90 according to the driving | running state of a user. 1 is a perspective view of a bicycle trainer 100. FIG. It is sectional drawing of the motion controller 18a. 3 is a sectional view of a motion controller 18. FIG.

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described. 1 to 5 are diagrams showing a first embodiment.

First, the configuration of the present embodiment will be described.
FIG. 1 is a perspective view of a bicycle trainer 100.

FIG. 2 is a top view of the bicycle trainer 100.
FIG. 3 is a front view of the bicycle trainer 100 as viewed from line AA in FIG.

  As shown in FIGS. 1 to 3, the bicycle trainer 100 includes a tripod type front fork support portion 10 that supports the front fork 92 of the bicycle 90, a rear wheel support portion 20 that supports the rear wheel 94 of the bicycle 90, and a tripod. And a connecting frame 30 that connects the mold front fork support portion 10 and the rear wheel support portion 20.

  The tripod-type front fork support unit 10 includes a pedestal 12, three legs 14 a, 14 b, 14 c that are opened at an equal angle to the lower outer periphery of the pedestal 12, and a hinge-type link that fixes the legs 14 a, 14 b in an opened state 15.

  The pedestal 12 includes a front fork mounting portion 16 that supports the front fork 92, and a motion controller 18 that controls the inclination of the front fork 92 in accordance with a change in the load on the front fork 92.

  The rear wheel support unit 20 includes a pair of rear wheel rollers 22 and 24 that support the rear wheel 94, a rear wheel frame 26 that installs the rear wheel rollers 22 and 24, and a flywheel that applies inertial force to the rear wheel roller 22. 28.

  The flywheel 28 couples two permanent magnets with a magnetic circuit to generate a load, which is applied to the rear wheel roller 22. The load is set assuming, for example, a state where the vehicle travels at 30 [km / h] on a slightly headed flat land. The load changes according to the rotational speed of the flywheel 28. When the rotational speed of the flywheel 28 is slow, the rear wheel 94 also stops as soon as the pedal 96 of the bicycle 90 is stopped like an uphill, and it is required to continuously input a force of 360 degrees to the pedal 96. In contrast, as the rotational speed of the flywheel 28 increases, the characteristic that the rear wheel 94 continues to rotate in the traveling direction becomes stronger.

  Next, the configuration of the front fork mounting portion 16 and the motion controller 18 will be described.

  FIG. 4 is a cross-sectional view of the front fork mounting portion 16 and the motion controller 18 taken along line BB in FIG.

  As shown in FIG. 4, the front fork mounting portion 16 includes a horizontal support shaft 40 to which the front end of the front fork 92 is mounted at both ends, a main body 42 that fits and fixes the horizontal support shaft 40 in the horizontal direction, and a main body 42. And a vertical support shaft 44 attached to the lower portion of the head.

  A hole 42 a extending in the vertical direction is formed at the lower center of the main body 42. The upper end of the vertical support shaft 44 is fitted in the hole 42a. A thread groove 44 a is formed in the lower portion of the vertical support shaft 44 along the axial direction of the vertical support shaft 44.

  The motion controller 18 includes elastic bodies 60 and 62, an elastic body housing portion 64 that houses the elastic body 60, and an elastic body housing portion 66 that houses the elastic body 62.

  The elastic bodies 60 and 62 are made of, for example, an elastomer (elastomer) that is an industrial material having rubber-like elasticity, and are formed in a disk shape. Through holes 60 a and 62 a for penetrating the vertical support shaft 44 in the vertical direction are formed in the central portions of the elastic bodies 60 and 62, respectively. Since the diameters of the through holes 60 a and 62 a are set to be substantially the same as or slightly smaller than the diameter of the vertical support shaft 44, the elastic bodies 60 and 62 are attached in close contact with the vertical support shaft 44.

  The elastic body accommodating portion 64 has an open upper surface and is formed with a U-shaped accommodating area for accommodating the elastic body 60. Since the inner diameter of the elastic body accommodating portion 64 is set to be substantially the same as or slightly smaller than the outer diameter of the elastic body 60, the elastic body 60 is accommodated in the elastic body accommodating portion 64 in close contact. The lower surface of the main body 42 of the front fork mounting portion 16 is in contact with the upper surface of the elastic body 60 to restrict the movement of the elastic body 60. In addition, a through hole 64 a for penetrating the vertical support shaft 44 in the vertical direction is formed at the lower center of the elastic body housing portion 64. The diameter of the through hole 64 a is set larger than the diameter of the vertical support shaft 44 by providing a predetermined clearance. The clearance defines a range in which the vertical support shaft 44 swings in the front-rear direction and the left-right direction, and the swing range of the vertical support shaft 44 is limited to the inside of the through hole 64a.

  The upper ends of the legs 14a, 14b, and 14c are rotatably attached to the side surfaces of the elastic body accommodating portion 64, respectively.

  The elastic body accommodating portion 66 is attached to the lower portion of the elastic body accommodating portion 64, and an upper surface and a lower surface are opened to form a cylindrical accommodating area for accommodating the elastic body 62. Since the inner diameter of the elastic body accommodating portion 66 is set to be substantially the same as or slightly smaller than the outer diameter of the elastic body 62, the elastic body 62 is accommodated in the elastic body accommodating portion 66 in close contact.

  A coil spring 66 a is provided in the elastic body accommodating portion 66 so that one end abuts on the lower surface of the elastic body accommodating portion 64 and the other end abuts on the upper surface of the elastic body 62. The coil spring 66 a biases the elastic body 62 in a direction away from the elastic body 60 (hereinafter referred to as “separation direction”).

  A screw portion 68 is provided at the lower portion of the elastic body 62. A through hole 68 a for penetrating the vertical support shaft 44 in the vertical direction is formed at the center of the screw portion 68. A thread groove corresponding to the thread groove 44a of the vertical support shaft 44 is formed on the inner peripheral surface of the through hole 68a. The screw portion 68 is screwed into the screw groove 44 a of the vertical support shaft 44 and pushes the elastic body 62 in a direction approaching the elastic body 60 (hereinafter referred to as “approaching direction”).

Next, the operation of the present embodiment will be described.
The bicycle trainer 100 is equipped with a bicycle 90 with a front wheel removed, and performs training by rotating a pedal 96. When installing the bicycle trainer 100, the legs 14a, 14b, 14c are opened and fixed by the link 15, and the lower ends of the legs 14a, 14b, 14c, the connecting frame 30 and the rear wheel frame 26 are grounded to the floor surface. For example, it can be stably installed on an indoor floor surface.

  When the bicycle 90 is attached to the bicycle trainer 100, first, the front wheel of the bicycle 90 is removed from the front fork 92 together with the axle (hub), and the front end of the front fork 92 is attached to the horizontal support shaft 40 of the front fork mounting portion 16. Next, the rear wheel 94 is installed on the rear wheel rollers 22 and 24.

  When the user gets on the bicycle 90 and depresses the pedal 96, the rear wheel 94 rotates, and the rear wheel rollers 22, 24 rotate by receiving frictional force from the rear wheel 94. Further, a load corresponding to the rotational speed of the rear wheel 94 is given to the rear wheel roller 22 by the flywheel 28. As a result, a load is given to the pedal 96 as if the user is actually driving on the bicycle 90.

  When the user depresses the pedal 96, the rear wheel 94 receives frictional force from the rear wheel rollers 22 and 24, so that a forward force is generated in the front fork 92. This force becomes a force that pushes and bends the vertical support shaft 44 forward, but the vertical support shaft 44 is surrounded by the elastic bodies 60 and 62 fixed in the elastic body housing portions 64 and 66, so that the vertical support shaft is The force to bend 44 is limited. Due to the limited force, the vertical support shaft 44 is bent to a certain extent, and the bicycle 90 is tilted forward appropriately.

  When the user steps on the left pedal 96, the body is tilted to the right in order to put the weight on the left pedal 96, so that the vertical support shaft 44 is similarly bent to a certain extent by a rightward force. Tilt moderately to the right. Conversely, when the user steps on the right pedal 96, the body is tilted to the left in order to put the weight on the right pedal 96, so that the vertical support shaft 44 is similarly bent to a certain extent by the leftward force. 90 tilts moderately to the left.

  As described above, in the bicycle trainer 100, when the user tries to move the bicycle 90 forward / backward / left / right, the bicycle 90 can also be moved back and forth or tilted left / right as it is actually training outdoors. become. The swinging angle of the elastic bodies 60 and 62 is set so that the swing angle is equal to or less than the maximum inclination angle (for example, 5 degrees with respect to a line perpendicular to the floor) when the bicycle 90 is actually driven straight ahead outdoors. It can be adjusted by the elastic modulus (elastic coefficient or Young's modulus) of the elastic material to be formed, the size of the elastic bodies 60 and 62, or the position of the vertical support shaft 44 to which the elastic body is attached.

Next, the behavior of the bicycle 90 will be described.
FIG. 5 is a diagram illustrating the behavior of the bicycle 90 according to the driving state of the user.

  Hereinafter, the behavior of the bicycle trainer 100 will be described in comparison with the three-roller bicycle trainer and the rear wheel support bicycle trainer.

  The three-roller bicycle trainer includes one front wheel roller that supports the front wheel of the bicycle 90 and a pair of rear wheel rollers that support the rear wheel 94 of the bicycle 90. For example, the technique disclosed in Japanese Unexamined Patent Publication No. 2-77060 is known. When the user tilts his / her body to the right, the three-roller type bicycle trainer balances according to the change in the center of gravity as shown in FIG. Move left so that it is positioned. Since this is a wheel ground contact position close to actual driving, a driving feeling close to actual driving can be obtained.

  On the other hand, the rear wheel support type bicycle trainer includes a rear wheel stand that supports the rear wheel of the bicycle 90, a rear wheel roller that supports the rear wheel 94 of the bicycle 90, and a front wheel base that anchors the front wheel of the bicycle 90. It is to be prepared. For example, the Bicycle trainer “LiveRide LR961” manufactured by Kajiura is known. When the user tilts his / her body to the right, the rear wheel support type bicycle trainer has the wheel grounding position fixed to the front wheel pedestal as shown in FIG. 5C. Will move to the right. Since this becomes an unnatural rotation center, a driving sensation close to actual driving cannot be obtained.

  Therefore, when tilting in the left-right direction, it is ideal that the wheel contact position moves. In this regard, when the user tilts his / her body to the right, the bicycle trainer 100 sets a virtual rotation center by the motion controller 18 as shown in FIG. Moves to the left so that is located directly below the center of gravity of the body. As a result, a driving sensation close to actual driving can be obtained as with the three-roller type bicycle trainer.

Next, a case where the rigidity of the vertical support shaft 44 is adjusted will be described.
When the threaded portion 68 is rotated in the forward direction, the elastic body 62 is pushed in the approaching direction by the threaded portion 68, so that the distance between the elastic body 60 and the elastic body 62 is reduced. When the interval is reduced, the degree of fluctuation of the vertical support shaft 44 in the load direction is increased, and the bicycle 90 is easily tilted. Therefore, when the weight of the user (including weight, extension, and balance feeling) is small, What is necessary is just to make the space | interval of the elastic body 60 and the elastic body 62 small with the thread part 68. FIG.

  On the other hand, when the screw portion is rotated in the reverse direction, the elastic body 62 biased by the coil spring 66a moves in the separation direction together with the screw portion 68, so that the interval between the elastic body 60 and the elastic body 62 is increased. When the interval is increased, the degree to which the vertical support shaft 44 fluctuates in the load direction is reduced, and the bicycle 90 is less likely to be inclined. What is necessary is just to enlarge the space | interval.

Next, the effect of this embodiment will be described.
In the present embodiment, the bicycle trainer 100 includes an elastic body 60 that fixes the vertical support shaft 44 in the radial direction, an elastic body 62 that fixes the vertical support shaft 44 in the radial direction, and biases the elastic body 62 in the separation direction. A coil spring 66a that engages with the screw groove 44a of the vertical support shaft 44, and a screw portion 68 that pushes the elastic body 62 in the approaching direction. To do.

  As a result, if the screw portion 68 is adjusted according to the weight of the user so that the inclination angle is about the same as the actual running when the user depresses the pedal 96, a driving feeling close to the actual running can be realized. Can do. Further, it is not necessary to replace the elastic bodies 60 and 62 for adjustment, and the adjustment is easy because the interval may be adjusted by the screw portion 68. Further, since it is not necessary to fix one end of the vertical support shaft 44 to the main body as in the bicycle trainer described in Patent Document 1, there are less restrictions on the installation position and installation direction of the vertical support shaft 44, and the size can be reduced. You can also. Furthermore, since the adjustment mechanism includes the coil spring 66a and the screw portion 68, the structure can be simplified.

  Further, in the present embodiment, the support shaft 44 supports the front fork 92 in the vertical direction.

Thereby, the structure of the vertical installation which installs the spindle 44 in the vertical direction is employable.
In the present embodiment, the vertical support shaft 44 corresponds to the support shaft of the invention 1, 2, or 4, the elastic body 60 corresponds to the first elastic body of the invention 1 or 2, and the elastic body 62 corresponds to the invention 1. Alternatively, the coil spring 66a and the threaded portion 68 correspond to the adjusting means according to the first or second aspect. The coil spring 66a corresponds to the biasing means of the second aspect.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. 6 and 7 are diagrams showing a second embodiment. Hereinafter, only different parts from the first embodiment will be described, and overlapping parts will be denoted by the same reference numerals and description thereof will be omitted.

First, the configuration of the present embodiment will be described.
FIG. 6 is a perspective view of the bicycle trainer 100.

FIG. 7 is a sectional view of the motion controller 18a.
As shown in FIGS. 6 and 7, the bicycle trainer 100 according to the present embodiment is provided with a base 16 a and a motion controller 18 a in place of the front fork attachment portion 16 and the motion controller 18 in the pedestal 12.

  The base 16a is formed in a flat plate shape. The upper ends of the legs 14a, 14b, and 14c are rotatably attached to the side surfaces of the base 16a.

  The motion controller 18 a includes a horizontal support shaft 40, elastic bodies 60 and 62, and a support shaft housing portion 70 that houses the horizontal support shaft 40 and the elastic bodies 60 and 62.

  Through holes 60 a and 62 a for penetrating the horizontal support shaft 40 in the horizontal direction are formed in the central portions of the elastic bodies 60 and 62, respectively. Since the diameters of the through holes 60 a and 62 a are set to be substantially the same as or slightly smaller than the diameter of the horizontal support shaft 40, the elastic bodies 60 and 62 are attached in close contact with the horizontal support shaft 40.

  The support shaft accommodating part 70 is attached to the upper part of the base 16a, and the left surface and the right surface are opened to form a cylindrical accommodation region for accommodating the horizontal support shaft 40 and the elastic bodies 60 and 62. The inner diameter of the support housing part 70 is set to be substantially the same as or slightly smaller than the outer diameter of the elastic bodies 60, 62, so that the elastic bodies 60, 62 are received in close contact with the support body 70. Has been. Further, a thread groove 70 a is formed on the inner peripheral surface of the support housing 70 along the axial direction of the horizontal support 40.

  A coil spring 66 a is provided in the support shaft accommodating portion 70 so that one end contacts the right surface of the elastic body 60 and the other end contacts the left surface of the elastic body 62. The coil spring 66a urges the elastic bodies 60 and 62 in the separation direction.

  A screw part 72 is provided on the left part of the elastic body 60. A through hole 72 a for penetrating the horizontal support shaft 40 in the horizontal direction is formed at the center of the screw portion 72. A thread groove corresponding to the thread groove 70a of the support shaft housing part 70 is formed on the outer peripheral surface of the through hole 72a. The screw portion 72 is screwed into the screw groove 70a of the support shaft housing portion 70, and pushes the elastic body 60 in the approaching direction.

  A screw portion 74 is provided on the right side of the elastic body 62. A through hole 74 a for penetrating the horizontal support shaft 40 in the horizontal direction is formed at the center of the screw portion 74. The diameters of the through holes 72a and 74a are set larger than the diameter of the horizontal support shaft 40 by providing a predetermined clearance. The clearance defines a range in which the horizontal support shaft 40 swings in the front-rear direction and the up-down direction, and the swing range of the horizontal support shaft 40 is limited to the inside of the through holes 72a and 74a. Further, a thread groove corresponding to the thread groove 70a of the support shaft accommodating portion 70 is formed on the outer peripheral surface of the through hole 74a. Then, the screw portion 74 is screwed into the screw groove 70a of the support shaft accommodating portion 70, and pushes the elastic body 62 in the approaching direction.

Next, the operation of the present embodiment will be described.
When the user depresses the pedal 96, the rear wheel 94 receives frictional force from the rear wheel rollers 22 and 24, so that a forward force is generated in the front fork 92. This force is a force that pushes and bends the horizontal support shaft 40 forward, but the horizontal support shaft 40 is surrounded by elastic bodies 60 and 62 fixed in the support shaft housing portion 70. The bending force is limited. Due to this limited force, the horizontal support shaft 40 is bent to a certain extent, and the bicycle 90 is tilted forward appropriately.

  When the user tilts his / her body to the right, the horizontal support shaft 40 is similarly bent to a certain extent by the force in the vertical direction, and the bicycle 90 tilts to the right. On the contrary, when the user tilts his / her body to the left, the horizontal support shaft 40 is similarly bent to a certain extent by the force in the vertical direction, and the bicycle 90 tilts to the left appropriately.

Next, a case where the rigidity of the horizontal support shaft 40 is adjusted will be described.
When the threaded portion 74 is rotated in the forward direction, the elastic body 62 is pushed in the approaching direction by the threaded portion 74, so that the distance between the elastic body 60 and the elastic body 62 is reduced. If the interval is reduced, the degree to which the horizontal support shaft 40 fluctuates in the load direction increases, and the bicycle 90 tends to tilt. Therefore, when the weight of the user is small, the elastic body 60 and the elastic body 62 are formed by the screw portion 74. What is necessary is just to make the space | interval of.

  On the other hand, when the screw portion is rotated in the reverse direction, the elastic body 62 biased by the coil spring 66a moves in the separation direction together with the screw portion 74, so that the interval between the elastic body 60 and the elastic body 62 increases. When the interval is increased, the degree to which the horizontal support shaft 40 fluctuates in the load direction is reduced, and the bicycle 90 is less likely to be tilted. What is necessary is just to enlarge the space | interval.

  Note that the screw portion 72 may be rotated and adjusted instead of the screw portion 74, or both the screw portions 72 and 74 may be rotated and adjusted.

Next, the effect of this embodiment will be described.
In the present embodiment, the support shaft 40 supports the front fork 92 in the horizontal direction.

Thereby, the structure of the horizontal installation which installs the spindle 40 in a horizontal direction is employable.
In the present embodiment, the horizontal support shaft 40 corresponds to the support shaft of the invention 1, 2, or 5, and the coil spring 66a and the screw portions 72, 74 correspond to the adjusting means of the invention 1 or 2.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. FIG. 8 is a diagram illustrating a third embodiment. Hereinafter, only different parts from the first embodiment will be described, and overlapping parts will be denoted by the same reference numerals and description thereof will be omitted.

First, the configuration of the present embodiment will be described.
FIG. 8 is a cross-sectional view of the motion controller 18.

  A slider 76 is provided in the elastic body accommodating portion 66 as shown in FIG. The slider 76 accommodates therein an elastic body 78 formed in the shape of a disk with the same material as the elastic bodies 60 and 62. Through holes 76 a and 78 a for penetrating the vertical support shaft 44 in the vertical direction are formed in the center portions of the slider 76 and the elastic body 78, respectively. Since the diameter of the through hole 78 a is set to be substantially the same as or slightly smaller than the diameter of the vertical support shaft 44, the elastic body 78 is attached in close contact with the vertical support shaft 44.

  A slide window 66 b is formed on the side surface of the elastic body accommodating portion 66. The right part of the slider 76 protrudes from the sliding window 66b, and the slider 76 can be slid onto the axis of the vertical support shaft 44 using the protruding part as a knob.

Next, the operation of the present embodiment will be described.
When the slider 76 is slid downward, the distance between the elastic body 78 and the elastic body 62 is reduced. When the interval is reduced, the degree of fluctuation of the vertical support shaft 44 in the load direction is increased, and the stress per unit area of the elastic body 60 close to the action point is increased. For this reason, since the bicycle 90 is easily inclined, when the weight of the user is small, the distance between the elastic body 78 and the elastic body 62 may be reduced by the slider 76.

  On the other hand, when the slider 76 is slid upward, the distance between the elastic body 78 and the elastic body 62 increases. As the interval increases, the degree of fluctuation of the vertical support shaft 44 in the load direction decreases, and the stress per unit area of the elastic body 60 close to the action point decreases. For this reason, since the bicycle 90 is difficult to tilt, the distance between the elastic body 78 and the elastic body 62 may be increased by the slider 76 when the weight of the user is large.

  In the present embodiment, the elastic body 78 corresponds to the first elastic body of the invention 1 or 3, the elastic body 62 corresponds to the second elastic body of the invention 1, and the slider 76 is the adjustment of the invention 1 or 3. Corresponds to the means.

[Modification]
In the first embodiment, the entire circumference of the vertical support shaft 44 is covered with the elastic bodies 60 and 62. However, the present invention is not limited to this, and a configuration is provided so as to cover a part of the peripheral surface of the vertical support shaft 44. You can also. For example, the elastic bodies 60 and 62 can be configured as a shape lacking a part of the ring. Similar modifications can be applied to the second and third embodiments.

  Moreover, in the said 1st thru | or 3rd Embodiment and its modification, although it provided and comprised two elastic bodies, it can also comprise not only this but three or more elastic bodies.

  Further, in the first to third embodiments and the modifications thereof, the present invention is applied to the case where the rigidity of the support shafts 40 and 44 that support the front fork 92 is adjusted. The present invention can be applied to other cases without departing from the gist of the invention. For example, (1) in the configuration for supporting the front wheel of the bicycle 90, when adjusting the rigidity of the support shaft that supports the front wheel, (2) in the configuration for supporting the rear fork of the bicycle 90, The present invention can also be applied to adjusting the rigidity, or (3) adjusting the rigidity of the support shaft that supports the rear wheel 94 in the configuration for supporting the rear wheel 94 of the bicycle 90.

DESCRIPTION OF SYMBOLS 100 ... Bicycle trainer, 10 ... Tripod type front fork support part, 12 ... Base, 14a, 14b, 14c ... Leg, 15 ... Link, 16 ... Front fork attachment part, 16a ... Base, 18, 18a ... Motion controller, 20 ... Rear wheel support section 22, 24 ... Rear wheel roller, 26 ... Rear wheel frame, 28 ... Flywheel, 30 ... Connection frame, 40 ... Horizontal shaft, 40a, 44a ... Screw groove, 42 ... Main body, 42a ... Hole, 44 ... Vertical support shaft, 60, 62, 78 ... Elastic body, 60a, 62b, 64a, 68a, 72a, 74a, 76a, 78a ... Through-hole, 64, 66 ... Elastic body housing part, 66a ... Coil spring, 66b ... Sliding window, 68, 72, 74 ... Screw part, 70 ... Spindle housing part, 76 ... Slider, 90 ... Bicycle, 92 ... Front fork, 94 ... Rear wheel, 96 ... Pedal

Claims (5)

A tilt adjustment device applied to a bicycle trainer having a support shaft that supports a front fork or front wheel or a rear fork or rear wheel of a bicycle,
A first elastic body for fixing the support shaft in a radial direction;
A second elastic body for fixing the support shaft in a radial direction;
A bicycle trainer inclination adjusting device comprising: adjusting means for adjusting an axial distance of the support shaft between the first elastic body and the second elastic body. In claim 1,
The adjusting means includes
An urging means for urging the second elastic body in a separating direction away from the first elastic body;
A bicycle characterized by having a screw portion screwed into a screw groove formed in the support shaft along the axial direction and provided on a side of the second elastic body opposite to the first elastic body. Trainer tilt adjustment device. In claim 1,
The adjusting means includes
A bicycle trainer inclination adjusting device comprising a slider that slides the first elastic body on an axis of the support shaft. In any one of Claims 1 thru | or 3,
2. The bicycle trainer inclination adjusting device according to claim 1, wherein the support shaft supports a front fork or a front wheel or a rear fork or a rear wheel of the bicycle in an axial direction of the support shaft. In any one of Claims 1 thru | or 3,
The tilt adjustment device for a bicycle trainer, wherein the support shaft supports a front fork or a front wheel or a rear fork or a rear wheel of the bicycle in a radial direction of the support shaft.

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