JP7364769B1 - Starting machine for bicycle competitions - Google Patents

Abstract

An object of the present invention is to provide a starting machine for a bicycle race, which allows the position of the pedals of a bicycle to be easily adjusted before the start of the race, and which eliminates the need for support from an assistant at the time of the start. [Solution] A starting device for a bicycle race, which is used to adjust the position of the pedals while an athlete is riding a bicycle before starting a bicycle race, has a main body on which a rear wheel 71 of a bicycle for a race is arranged. 11, and a handle portion connected to the main body portion 11 and supporting the player. The main body part 11 includes a base having a plate part (plate material 13) on the upper surface, a first roller 14 and a second roller 15 that are retractably attached below the plate part, and a vertical drive that drives these up and down. It has a mechanism 18 and a rotational drive mechanism 19 that rotationally drives at least one of the first roller 14 and the second roller 15. The first roller 14 and the second roller 15 rotatably support the rear wheel 71 from below in a state raised above the plate portion. [Selection diagram] Figure 6

Description

TECHNICAL FIELD The present invention relates to a starting device for a bicycle race, which is used for adjusting the position of the pedals of an athlete riding a bicycle before starting a bicycle race.

In recent years, an event called KEIRIN has been adopted as an Olympic sport, and with this, a competition called 250 race has been held in Japan with the same rules as keirin. The 250 race is a competition in which a racing bicycle runs six laps around an indoor bank, each lap being 250 meters long, and on the first lap, it is decided that the racers will ride around the bank in a predetermined order. Therefore, unlike traditional bicycle racing, which requires all runners to start at the same time as the starting gun, the 250 race race is not dependent on the instantaneous power of the start.

When starting a 250 race using the conventional starting method, the runner moves to the starting position while riding the bicycle. At this time, the athlete's feet are already fixed to the pedals of the bicycle, and it is not possible to stop the bicycle by standing at the starting position, so the athlete is supported by an assistant at the start.

However, when the athlete moves to the starting position, the position of the pedals on the bicycle may not be appropriate for the athlete, and it is necessary to adjust the position of the pedals. In such a case, it is necessary to rotate the pedals while lifting the rear wheel of the bicycle from the ground, which requires the cooperation of an assistant and makes precise position adjustment difficult. Additionally, in the 250 race, the starting position is set on a bank, so the race starts from a slope, which makes it difficult for assistants to stably support the runners, and there is a risk of falling.

The present invention has been made in view of the above-mentioned problems, and makes it possible to easily adjust the position of the pedals of a competition bicycle before the start of a competition, and also eliminates the need for support from an assistant at the start. The purpose is to provide a starting machine for bicycle competitions that can be used in bicycle races.

(1) A starting device for a bicycle race for adjusting the position of the pedals while an athlete is riding a bicycle before starting a bicycle race,
A main body portion on which the rear wheel of the competition bicycle is arranged;
a handle portion connected to the main body portion and supporting the player;
The main body above is
a base having a plate portion on the top surface;
a first roller and a second roller that are retractably attached below the plate portion;
a vertical drive mechanism that drives the first roller and the second roller up and down;
a rotational drive mechanism that rotationally drives at least one of the first roller and the second roller,
The first roller and the second roller rotatably support the rear wheel from below while raised above the plate part by the vertical drive mechanism. Starting machine.

(2) The main body is arranged on an inclined surface inclined at a predetermined angle with respect to a horizontal plane,
The bicycle race starting machine according to (1), wherein the first roller and the second roller are raised by the vertical drive mechanism and arranged substantially horizontally.

(3) The bicycle according to (1) or (2), wherein the first roller and the second roller have a shape that is curved toward the inner diameter at a substantially central portion in the axial direction. Competition starting machine.

(4) The plate portion has a first storage hole that stores the first roller and a second storage hole that stores the second roller,
The rear wheel is placed on the plate part with the first roller and the second roller stored in the first storage hole and the second storage hole, respectively. The bicycle race starting machine according to any one of (1) to (3).

(5) the first roller and the second roller are arranged substantially parallel to each other, and the first roller is arranged further forward in the traveling direction of the competition bicycle than the second roller;
The bicycle race starting machine according to any one of (1) to (4), wherein the rotational drive mechanism rotationally drives the first roller.

(6) The bicycle race starting machine according to any one of (1) to (5), wherein the handle portion can be fixed in an upright position substantially vertically.

(7) The bicycle race starting machine according to (6), wherein the handle portion is configured to be foldable toward the main body portion.

(8) The main body section has a first inclined plate and a second inclined plate, which eliminate the difference in level between the mounting surface on which the main body section is placed and the plate section, respectively, at the front and rear in the traveling direction of the competition bicycle. The bicycle race starting machine according to any one of (1) to (7), characterized by having an inclined plate.

(9) The bicycle race starting machine according to (8), wherein the first inclined plate and the second inclined plate are configured to be foldable toward the main body.

According to the present invention, it is possible to provide a starting machine that can easily adjust the position of the pedals of a competition bicycle before the start of a competition, and can eliminate the need for support from an assistant at the start.

FIG. 1 is a perspective view showing a bicycle race starting machine according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the first roller and the second roller are raised. FIG. 3 is a perspective view showing a state in which the handle portion is folded toward the main body portion. FIG. 4 is a back view showing the main body of the bicycle race starting machine shown in FIG. 1. FIG. 5 is a diagram for explaining the roller vertical drive mechanism, in which (a) shows the link mechanism with the roller retracted, and (b) shows the link mechanism with the roller raised. It is a diagram. FIG. 6 is a perspective view showing the operation of the bicycle race starting machine when it is used.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a bicycle race starting machine according to an embodiment of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments described below, and can be implemented with arbitrary changes within the scope of the gist of the present invention. In addition, in the present specification, the front-rear direction refers to the traveling direction of a racing bicycle that is started using the bicycle racing starting machine according to the present embodiment, and the opposite direction thereof, and the left-right direction refers to Represents the left and right hand directions of a rider riding a bicycle. Furthermore, in the specification of this application, the terms "substantially central, substantially horizontal, substantially parallel, and substantially vertical" do not necessarily have to be exactly central, horizontal, parallel, and vertical; This also includes cases where the deviation is within the range that can be obtained.

[Starting machine for bicycle competitions]
FIG. 1 is a perspective view showing a bicycle race starting machine according to an embodiment of the present invention. FIG. 2 is a perspective view showing a state in which the first roller and the second roller are raised.

As shown in FIGS. 1 and 2, the bicycle racing starting device 10 includes a main body 11 and a handle 12 connected to the main body 11. The main body part 11 includes a base 50 composed of a rectangular underframe 20 and a plate (plate part) 13 fixed close to one side of the underframe 20; It has a first roller 14 and a second roller 15. Moreover, the main body part 11 has a first inclined plate 23 and a second inclined plate 24 that connect the ground (placement surface) on which the main body part 11 is placed and the upper surface of the plate material 13, respectively, on the front and rear sides thereof. has.

Further, the main body portion 11 includes a vertical drive mechanism 18 that drives the first roller 14 and the second roller 15 up and down, and a rotation drive mechanism 19 that rotationally drives the first roller 14. The first roller 14 and the second roller 15 each have a shape that is concavely curved toward the inner diameter at a substantially central portion in the direction of the shafts 26 and 27, respectively.

The rectangular underframe 20 has a pair of main body side front frame members 20a and a main body side rear frame member 20b extending in the left-right direction, and a main body side left frame member 20c and a main body side right frame member 20c extending in the front-rear direction. It has a frame member 20d. Further, the main body side front frame member 20a and the main body side rear frame member 20b are connected to each other by reinforcing members 21a, 21b, and 21c (see FIG. 4). A hook 22 having a U-shaped cross section and a hole is attached to the reinforcing member 21a.

A first storage hole 16 and a second storage hole 17 are formed in the plate material 13, and the first roller 14 and the second roller 15 are connected to the plate material 13 through the first storage hole 16 and the second storage hole 17, respectively. It is configured so that it can be stored below. Further, a cover 35 that protects the vertical drive mechanism 18 is formed on the plate material 13, and the cover 35 is provided with a vertical drive switch that switches the vertical drive mechanism 18 to raise and lower the first roller 14 and the second roller 15. 29 is attached.

The handle portion 12 includes a grip portion 31 that is gripped by the player, and a frame portion 30 that supports the grip portion 31 at a position where the player can easily grip it. When the player grips the grip part 31, the frame part 30 connects the upper and lower ends of a pair of handle-side front frame members 30a and handle-side rear frame members 30b, which extend in the front and rear directions, and extends in the front and rear directions. It has a pair of handle-side lower frame member 30c and handle-side upper frame member 30d that extend to. The grip portion 31 is formed to extend forward, continuing from the handle-side upper frame member 30d. Further, a rotation drive switch 32 is attached to the grip portion 31 to switch between rotation and stop of the first roller 14 by the rotation drive mechanism 19.

The handle side front frame member 30a and the main body side front frame member 20a are connected by an auxiliary member 34a, and the handle side rear frame member 30b and the main body side rear frame member 20b are connected by an auxiliary member 34b. Further, the handle-side lower frame member 30c is locked to a hook 22 attached to the reinforcing member 21a of the underframe 20, and the hole of the hook 22 is aligned with the hole of the hook 22 in the handle-side lower frame member 30c. A fixing pin 33 is inserted into a hole (not shown) provided in the. Thereby, the handle portion 12 is configured to be able to be fixed in an upright state.

FIG. 3 is a perspective view showing a state in which the handle portion is folded toward the main body portion. When the bicycle racing starting device 10 is used, the handle portion 12 is fixed in an upright state. On the other hand, after use, as shown in FIG. 3, the fixing pin 33 is removed and the handle portion 12 and main body portion 11 are folded so as to overlap. Further, in this embodiment, the first inclined plate 23 and the second inclined plate 24 are attached to the plate material 13 by hinges 25, and are configured to be foldable toward the main body portion 11.

FIG. 4 is a back view showing the main body of the bicycle race starting machine shown in FIG. 1. FIGS. 5A and 5B are diagrams for explaining the roller vertical drive mechanism. The vertical drive mechanism 18 and the rotation drive mechanism 19 in this embodiment will be described in detail using FIGS. 4, 5(a), and 5(b).

(Vertical drive mechanism)
The vertical drive mechanism 18 includes a battery 49, a linear actuator 28 connected to the battery 49, and a first shaft 44 and a second shaft 45 connected to the linear actuator 28 via a four-bar link mechanism 37. The linear actuator 28 linearly reciprocates the piston 43 within the cylinder 41 by rotating the shaft of the motor 42. The tip of the piston 43 is connected to one end of a drive link 46 constituting a four-bar link mechanism, and both are rotatably connected around a fulcrum 53a, and the other end of the drive link 46 is connected to a first shaft. It is fixed at 44.

One end of the driving link 46 and one end of the driven link 47 are connected by a connecting link 48. Note that the connecting link 48 and one end of the drive link 46, and the connecting link 48 and one end of the driven link 47 are configured to be rotatable about a fulcrum 53a and a fulcrum 53b, respectively. Further, the other end of the driven link 47 is fixed to the second shaft 45.

The first shaft 44 and the second shaft 45 are rotatably supported by reinforcing members 21b and 21c. A right side first roller support plate 51a and a left side first roller support plate 51b, which support the shaft 26 of the first roller 14, are fixed to the first shaft 44 at a predetermined interval. Similarly, a right side second roller support plate 52a and a left side second roller support plate 52b, which support the shaft 27 of the second roller 15, are fixed to the second shaft 45 at a predetermined interval.

Until the rear wheel of the racing bicycle is placed on the plate 13 and when the racing bicycle is started from above the plate 13, the piston 43 moves into the cylinder 41 as shown in FIG. 5(a). is housed within. At this time, the drive link 46 connected to the tip of the piston 43 and the driven link 47 connected to the drive link 46 via the connection link 48 are in a state where their upper ends are tilted toward the linear actuator 28. ing. All the roller support plates 51a, 51b, 52a, and 52b fixed to the first shaft 44 and the second shaft 45 have also fallen down, and the first roller 14 and the second roller 15 are stored below the plate material 13. ing.

When the vertical drive switch 29 is operated, as shown in FIG. 5(b), the piston 43 extending from within the cylinder 41 causes the drive link 46 to rise, and also causes the driven link 47 to rise. As a result, the first shaft 44 and the second shaft 45 rotate about 90 degrees around these axes, and as the first shaft 44 and the second shaft 45 rotate, all the roller support plates 51a, 51b, 52a and 52b stand up, and the first roller 14 and second roller 15 are raised.

When using the bicycle racing starting device 10, the shafts 26 and 27 of the first roller 14 and second roller 15, which are arranged substantially parallel to each other, and the rotating shaft of the rear wheel of the racing bicycle are approximately parallel to each other. A rear wheel is arranged on the first roller 14 and the second roller 15 so as to be parallel to each other. Therefore, when the first roller 14 and the second roller 15 are raised above the plate material 13 by the vertical drive mechanism 18, the rear wheel is rotatably supported from below by the first roller 14 and the second roller 15. be done.

Note that the first right roller support plate 51a and the second right roller support plate 52a are designed to be shorter than the first left roller support plate 51b and the second left roller support plate 52b, respectively. Therefore, when the main body 11 is placed on a horizontal ground, when the first roller 14 and the second roller 15 are lifted up by the vertical drive mechanism, the first roller 14 and the second roller 15 The left end is higher than the left end. On the other hand, when the main body part 11 is placed on an inclined surface where the right side is higher than the horizontal ground, and the first roller 14 and the second roller 15 are raised by the vertical drive mechanism, The shaft 26 of the first roller 14 and the shaft 27 of the second roller 15 are both arranged substantially horizontally.

(Rotary drive mechanism)
The rotational drive mechanism 19 includes a battery 49, a motor 60 connected to the battery 49, a motor-side gear 61 rotationally driven by the motor 60, and a roller-side gear 62 connected to the motor-side gear 61 by a chain (not shown). has. The roller side gear 62 is fixed to the shaft 26 of the first roller 14.

When the rotation drive switch 32 is operated, the roller side gear 62 rotates as the motor side gear 61 rotates, thereby causing the first roller 14 to rotate. In this embodiment, the rotation drive switch 32 is configured to not only switch between rotating and stopping the first roller 14 but also switch the rotation direction of the first roller 14.

FIG. 6 is a perspective view showing the operation of the bicycle race starting device 10 when it is used. A method of using the bicycle racing starting device 10 will be described below with reference to FIGS. 1 and 6. The competition for which the bicycle race starting device 10 according to the present embodiment is used is, for example, a 250 race, and is started from a bank (sloped surface) inclined, for example, by 13 degrees with respect to a horizontal plane.

As shown in FIG. 1, first, before starting a bicycle race, a bicycle race starting machine 10 is installed on a bank that is a starting position. At this time, the first roller 14 and the second roller 15 are stored below the plate material 13. Further, the handle portion 12 is fixed in an upright state. In the present embodiment, the handle portion 12 is fixed in a substantially vertical position with the bicycle racing starting device 10 installed on the bank.

Next, an athlete (not shown) rides the competition bicycle 70 and moves the competition bicycle 70 onto the board 13 with his feet fixed to the pedals 72. At this time, while holding the grip part 31, the competitor holds the bicycle so that the rear wheel 71 of the competition bicycle 70 is placed between the first roller 14 and the second roller 15, which are arranged parallel to each other. Adjust the position of the competition bicycle 70.

Thereafter, as shown in FIG. 6, the assistant operates the vertical drive switch 29 to raise the first roller 14 and the second roller 15. As a result, the rear wheel 71 is separated from the plate material 13 and is supported from below by the first roller 14 and the second roller 15. Thereafter, the contestant operates the rotation drive switch 32 to rotate the first roller 14, thereby rotating the rear wheel 71 and adjusting the pedal 72 to a desired position. Thereafter, the assistant again operates the vertical drive switch 29 to store the first roller 14 and the second roller 15 below the plate 13 and place the rear wheel 71 on the plate 13.

In the bicycle race starting machine 10 according to the present embodiment configured as described above, the rear wheel 71 can be easily lifted from the plate material 13 by operating the vertical drive switch 29, and the rear wheel 71 can be easily lifted from the first It is rotatably supported by a roller 14 and a second roller 15. The player can easily rotate the first roller 14 and rotate the rear wheel 71 by operating the rotation drive switch 32. Therefore, the athlete can easily adjust the position of the pedal 72 to a desired position. Thereafter, by operating the vertical drive switch 29 again, the rear wheel 71 is easily placed on the plate 13, so that the rider can start the competition bicycle 70 at a desired timing by rotating the pedals 72. be able to.

In addition, since the athlete supports himself or herself by grasping the grip part 31 rather than being supported by an assistant, there is no need for an assistant who has the skills and strength to support the athlete, and safety is improved. can be done.

In this embodiment, the first roller 14 and the second roller 15 are raised in consideration of the fact that the main body 11 is placed on an inclined surface inclined at a predetermined angle with respect to a horizontal surface. , these axes are designed to be approximately horizontal. Moreover, the first roller 14 and the second roller 15 have a shape in which the center portion in the axial direction is curved and recessed. Therefore, the first roller 14 and the second roller 15 can stably stand the competition bicycle 70 in the vertical direction, and further improve the stability when lifting the rear wheel 71.

Further, considering that the main body part 11 is placed on an inclined surface, the handle part 12 is designed so that it can be fixed in a substantially vertical direction. Therefore, the athlete can stably support himself. Further, since the handle portion 12 is configured to be foldable toward the main body portion 11, the bicycle race starting device 10 can be transformed into a compact size after the athlete has started, and can be quickly moved from the starting position. I can do it. Moreover, since the tires 36 are attached to the main body side left frame member 20c of the main body part 11, the bicycle race starting machine 10 can be moved even more easily after the handle part 12 is folded. Furthermore, if a fall prevention pin (not shown) is attached near the tire 36, the movement of the tire 36 is suppressed to prevent the tire 36 from falling when the bicycle race launcher 10 is placed against a wall or the like. be able to

In addition, since the main body part 11 is designed so that the first roller 14 and the second roller 15 are housed below the plate material 13, the main body part 11 needs to have a predetermined thickness. In this embodiment, a first inclined plate 23 and a second inclined plate 24 are attached to eliminate the difference in level between the mounting surface on which the main body part 11 is mounted and the upper surface of the plate member 13. Specifically, the first inclined plate 23 has a shape that gently connects the upper surface of the plate material 13 and the mounting surface at the front in the direction of movement of the main body 11, and the second inclined plate 24 has a shape that gently connects the upper surface of the plate 13 and the mounting surface at the front in the direction of movement of the main body 11. , it has a shape that gently connects the upper surface of the plate material 13 and the mounting surface. Therefore, the operation of moving the competition bicycle 70 onto the plate material 13 can be carried out smoothly. Note that since the first inclined plate 23 and the second inclined plate 24 are also configured to be foldable toward the main body 11, it is possible to overlap the first inclined plate 23 and the second inclined plate 24 on the main body 11. After being folded up and folded, the handle portion 12 can be folded up. Therefore, a large space for temporarily storing the bicycle race starting device 10 is not required.

In this embodiment, of the first roller 14 and the second roller 15, the first roller 14 located at the front in the traveling direction is configured to be rotated by the rotational drive mechanism 19. The roller to be used is not limited. For example, the second roller 15 located at the rear may be rotated, or both the first roller 14 and the second roller 15 may be rotated. However, when a contestant rides the competition bicycle 70, a larger load is applied to the first roller 14, so rotating the first roller 14 allows the rear wheel 71 to rotate more smoothly.

Further, in the present invention, the position of the vertical drive switch 29 is not particularly limited, and both the rotational drive switch 32 and the vertical drive switch 29 may be attached to the grip portion 31. With such a configuration, after the bicycle race starting machine 10 is placed at the starting point, the athlete can operate all operations until the athlete starts, and there is no need to adjust the position of the rear wheel 71. A series of operations can be performed even more smoothly.

The position of the handle part 12 is not limited either, and it may be placed on the right hand side or the left hand side of the main body part 11, and the handle part 12 is designed to be placed in a direction that is easy for the player to operate. do it.

Furthermore, the bicycle race starting device 10 according to the present embodiment is not only used when starting a 250 race, but can be used in all races that use a similar starting method. Therefore, the angle of the bank at the start position, etc. may be changed in various ways. In such a case, if the angles of the axes of the first roller 14 and the second roller 15 are configured to be adjustable, it is possible to accommodate various bank angles. Examples of methods for adjusting the angles of the axes of the first roller 14 and the second roller 15 include changing the length of the roller support plate that supports the first roller 14 and the second roller 15, and For example, there is a method of attaching an inclination adjustment member.

As described in detail above, according to the bicycle race starting machine according to the present invention, it is possible to easily adjust the position of the pedals of the bicycle race before the start of a bicycle race, and the support of an assistant is not required at the time of the start. It can be done.

10 Starting machine for bicycle competition 11 Main body part 12 Handle part 13 Plate material (plate part)
14 First roller 15 Second roller 16 First storage hole 17 Second storage hole 18 Vertical drive mechanism 19 Rotary drive mechanism 20 Underframe 23 First inclined plate 24 Second inclined plate 28 Linear actuator 29 Vertical drive switch 30 Frame 31 Grip part 32 Rotation drive switch 49 Battery 50 Base

Claims (9)

A starting device for a bicycle race for adjusting the position of a pedal while an athlete is riding a bicycle before starting a bicycle race,
a main body portion on which a rear wheel of the competition bicycle is arranged;
a handle portion connected to the main body portion and supporting the athlete;
The main body portion is
a base having a plate portion on the top surface;
a first roller and a second roller that are retractably attached below the plate portion;
a vertical drive mechanism that drives the first roller and the second roller up and down;
a rotational drive mechanism that rotationally drives at least one of the first roller and the second roller,
The first roller and the second roller rotatably support the rear wheel from below in a state where the first roller and the second roller are raised above the plate part by the vertical drive mechanism, Starting machine. The main body portion is arranged on an inclined surface inclined at a predetermined angle with respect to a horizontal plane,
2. The bicycle race starting machine according to claim 1, wherein the first roller and the second roller are raised by the vertical drive mechanism and arranged substantially horizontally. 3. The bicycle race starting machine according to claim 1, wherein the first roller and the second roller have a shape that is curved toward the inner diameter at a substantially central portion thereof in the axial direction. The plate portion has a first storage hole that stores the first roller and a second storage hole that stores the second roller,
The rear wheel is placed on the plate portion with the first roller and the second roller stored in the first storage hole and the second storage hole, respectively. The starting machine for bicycle racing according to claim 1 or 2. The first roller and the second roller are arranged substantially parallel to each other, and the first roller is arranged further forward in the traveling direction of the competition bicycle than the second roller,
The bicycle race starting machine according to claim 1 or 2, wherein the rotational drive mechanism rotationally drives the first roller. 3. The bicycle race starting machine according to claim 1, wherein the handle portion can be fixed in an upright position in a substantially vertical direction. 7. The bicycle race starting machine according to claim 6, wherein the handle portion is configured to be foldable toward the main body portion. The main body section has a first inclined plate and a second inclined plate disposed at the front and rear in the traveling direction of the competition bicycle, respectively, for eliminating a step difference between the mounting surface on which the main body section is placed and the plate section. The bicycle race starting machine according to claim 1 or 2, characterized in that it has the following. 9. The bicycle race starting machine according to claim 8, wherein the first inclined plate and the second inclined plate are configured to be foldable toward the main body.

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