JP2010105474A - Method and apparatus of selecting bicycle frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus of selecting a bicycle frame capable of achieving comprehensive and automatic frame selection, in which variation depending on a measurer at a store or the like can be eliminated as much as possible, and a physical frame, physical capacity, an intended purpose, a level, and preference of a user are more carefully considered. <P>SOLUTION: In the method of selecting the bicycle frame, the appropriate frame for the user is selected using a ride measuring means 2 capable of changing anteroposterior and vertical positions of a saddle and a handlebar. In the method, the physical frame, the intended purpose, the level or the like of the user are input in a condition input means 20, and the anteroposterior and vertical positions of the saddle and the handlebar and a frame skeleton are calculated and found based on a predetermined calculating formula 22. Thus, the skeleton in the appropriate frame for the user can be automatically obtained simply by inputting the conditions in the input means 20. Therefore, variation depending on the measurer at the store or the like can be eliminated as much as possible. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a bicycle frame selection method and a selection apparatus for selecting a frame suitable for a user by using a ride measuring means capable of changing the position of the saddle and the handlebar in the front-rear position and the vertical position.

Traditionally, several standard skeleton frames are provided to select the dimensions of each part of the bicycle frame (length of each tube, angle between each tube, relative position, etc .: skeleton). The one that fits the user's body size was selected. However, as preferences and preferences diversify as in recent years, it has become impossible to satisfy users simply by selecting from the standard skeleton frames provided. For this reason, a custom-made frame that can select a more optimal one for the user has been provided (for example, see Patent Documents 1 to 3 below).
Japanese Patent Laid-Open No. 64-90887 (refer to the claims of the gazette) Japanese Utility Model Publication No. 6-75982 Full Text CD-ROM Japanese Examined Patent Publication No. 63-1233 (refer to the claims of the publication)

  The method for determining the frame size of the bicycle disclosed in Patent Document 1 will be briefly described with reference to FIG. On the base 101, a front pipe 105 inclined forward and a standing pipe 104 inclined rearward via a hanger portion 103 at the upper end of a central support column 102 are erected. These are reinforced by the reinforcing pipes 106 and 107, the head pipe post 113 is fitted to the front pipe 105 so that the vertical position can be adjusted, and the seat post 110 is fitted to the standing pipe 104 so that the vertical position can be adjusted. A saddle post 112 having a seat 111 is attached to the upper portion of the seat post 110 by a fastener so that the vertical position can be adjusted. A head pipe 114 is fixed to the upper end of the head pipe post 113 so as to incline forward and downward. A vertical handle post 115 is mounted on the upper end of the head pipe 114. The position is adjustable. In addition, a bar 117 having an index 118 is fixed to an extended line of the head pipe 114 at a position corresponding to the hub.

  Using such a measuring instrument, the step of determining the position of the seat post 110 according to the user, the step of determining the position of the head pipe post 113 according to the position of the seat post 110, and the position of the lateral handle post 116 with reference to the index. From the stage of determining the position, the optimal frame size for the user is determined.

  The bicycle frame size selection device disclosed in Patent Document 2 will be briefly described with reference to FIG. A substantially U-shaped frame main body 203 is erected on the horizontal base 201 via connecting members 204 and 205. A crank arm 211 having a pedal 212 is provided, and a seat post 217 having a saddle 216 is slidably inserted into a rear end 203b of the frame main body 203, and a T-shaped handle post 220 is inserted into a front end 203d of the frame main body 203. The vertical flange 220a is slid and inserted. The horizontal hook 222a of the T-shaped handle support member 222 is slidably inserted into the horizontal hook 222b of the handle post 220. The left and right handlebars 223 are slidably inserted into the horizontal 222b of the handle support member 222.

  Using such a selection device, the user puts his / her foot on the pedal 212 and rides on the saddle 216 and measures the scale 219 while determining the optimum insertion position of the seat post 217 with respect to the rear end portion 203b of the frame body 203. Select. Next, using the dial screw 221, the optimal vertical position of the handle post 220 with respect to the vertical flange 222 a with respect to the front end 203 d of the frame body 203, the optimal front and back position of the handle support member 222 with respect to the horizontal flange 222 b of the handle post 220, The optimum position of the left and right handlebars 223 with respect to the horizontal collar 222b of the handle support member 222 is selected to determine the optimum bicycle frame size for the user.

  The bicycle frame size calculation apparatus disclosed in Patent Document 3 will be briefly described with reference to FIG. When the user sits on the saddle 341, grasps the handle 325, steps on the pedal 331 to which the pedaling force resistance is applied, and rotates the pedal shaft 329, the carriage 303 is moved by the electric motor arranged in the base 301. The handle support portion 323 is moved up and down and horizontally, and the saddle support portion 338 is moved up and down by moving back and forth and the feed screws 318 and 338 moving up and down. Thus, after determining the optimal boarding position suitable for the user's physique, these positions are detected by the boarding posture detection device 342 (also serving as a control box), and each detection signal input from the boarding posture detection device 342 is detected. Based on this, the seat angle, frame size, caster angle, upper pipe dimension, and front center are calculated by the calculation device 343 and displayed on the display device 344. Reference numeral 345 denotes an output printer.

  With the advent of such a frame selection method and frame selection device, it becomes possible to select an optimal frame in detail according to the user's physique and characteristics, but the first prior art example of FIG. 9 and FIG. In the second conventional example, there is no appropriate index for determining the position, and there is a possibility that an optimum frame skeleton cannot be obtained for the user due to variations in the finish of the frame. Further, in the third conventional example of FIG. 11, although a measurement method that takes into account the actual running state is adopted, such as a pedaling load applied to the pedal, it is in a state close to the actual running state. The selection of appropriate positions for each part, that is, obtaining the skeleton dimensions has been limited.

  Therefore, the present invention solves the problems of the conventional frame selection method and frame selection device of the bicycle, can eliminate variations by measurement personnel such as dealers as much as possible, and more precisely, the physique and physical strength of the user, the intended use, An object of the present invention is to provide a bicycle frame selection method and a selection apparatus that enable comprehensive and automatic frame selection that incorporates the intention of the level and the preference.

  For this reason, the present invention provides a bicycle frame selection method for selecting a frame suitable for the user by using a ride measuring means capable of changing the position of the saddle and the handlebar in the front-rear position and the vertical position. The user level or the like is input to the condition input means, and the front / rear and vertical positions and the frame skeleton of the saddle and handlebar are obtained based on a predetermined calculation formula. The present invention also provides a frame suitable for the user by measuring a user's physical ability in a state where a load applied by the load applying unit is applied to the pedaling mechanism in the boarding measuring unit, and comparing the measured value with a predetermined stiffness selection table. It is characterized by obtaining rigidity. The present invention is characterized by presenting the ride quality of the frame rigidity thus obtained. In the measurement of the physical ability, the present invention measures the pulse and the actual work rate, estimates the maximum aerobic power from the measured values, and compares the estimated aerobic power with the stiffness selection table. The frame rigidity suitable for the user is obtained. The present invention is characterized in that a rigidity correction term that reflects the user's intention is added to the rigidity selection table. The present invention also relates to a bicycle frame selection device used in the first bicycle frame selection method, including condition input means for inputting a user's physique, purpose application, user level, and the like, and inputs thereof. A position and frame skeleton calculating means for calculating the position and frame skeleton of the front and rear positions and the vertical position of the saddle and handlebar based on a predetermined calculation formula depending on conditions, and a position display means for displaying the position and frame skeleton It is characterized by being. The present invention also relates to a bicycle frame selection device used in any one of the second to fourth bicycle frame selection methods, comprising: condition input means for inputting a user's frame rigidity preference; A frame for obtaining a frame rigidity suitable for a user by using a boarding measuring means for boarding, a load applying means provided in the boarding measuring means, a pulse rate measuring means, an actual work rate measuring means, and a predetermined stiffness selection table It is characterized by comprising rigidity selecting means and frame rigidity display means for displaying the selection result, and these are used as means for solving the problems.

  According to the present invention, in a bicycle frame selection method for selecting a frame suitable for a user by using a ride measuring means capable of changing the position of the saddle and the handlebar in the front-rear position and the vertical position, the user's physique, purpose application, The user's level is input to the condition input means, and the saddle and handlebar front / rear and vertical positions and frame skeleton are obtained based on a predetermined calculation formula, and the optimal frame skeleton for the user is automatically obtained. Therefore, it is possible to eliminate as much as possible the variation due to the measurer at the store or the like.

  Further, the physical ability of the user is measured in a state where the load by the load applying means is applied to the pedaling mechanism in the boarding measuring means, and the measured value is collated with a predetermined rigidity selection table to obtain a frame rigidity suitable for the user. In this case, the frame rigidity can be automatically selected more finely according to the physical ability of the user. In addition, when presenting the ride quality of the obtained frame rigidity, it is possible to select the rigidity according to the riding style of the bicycle more finely based on the comment of the ride taste presented by the user. Further, in the measurement of the physical ability, the pulse and the actual work rate are measured, the maximum aerobic power is estimated from the measured values, and the frame rigidity is compared with the stiffness selection table from the estimated maximum aerobic power. In the case of obtaining it, it is possible to automatically select the optimum frame rigidity corresponding to the physical strength of the user by estimating the maximum aerobic power that is an index of the user's own cardiopulmonary ability as the physical ability of the user.

  Furthermore, when a rigidity correction term that reflects the user's intention is added to the rigidity selection table, elements such as user's preference are given to the frame rigidity that is uniquely determined from the user's own physical ability. The frame rigidity can be selected more finely by taking into account.

  The bicycle frame selection device used in the first bicycle frame selection method includes condition input means for inputting a user's physique, purpose application, user level, and the like, and a predetermined value according to these input conditions. The position and frame skeleton calculating means for calculating the position and frame skeleton of the front and rear positions and the vertical position of the saddle and handlebar based on the calculation formula, and the position display means for displaying the position and the frame skeleton. By simply inputting the user's conditions to the input means, a frame skeleton suitable for the user can be automatically obtained based on a predetermined calculation formula prepared in advance. Each component means can be set easily, and the resulting frame skeleton It also becomes possible to present to display.

  Furthermore, it is a bicycle frame selection device used in any one of the second to fourth bicycle frame selection methods, the condition input means for inputting the user's frame rigidity preference, and the ride on which the user rides Measuring means, load applying means provided in the boarding measuring means, pulse rate measuring means, actual work rate measuring means, and frame stiffness selecting means for obtaining a frame stiffness suitable for the user using a predetermined stiffness selection table And frame rigidity display means for displaying the selection result, the user rides on the board measurement means taking into account the preference of the frame rigidity, and performs a load test and the like to select a predetermined rigidity. The frame rigidity suitable for the user can be selected using the table, so each component means can be set easily using the boarding measurement means and personal computer. Furthermore, it is possible to present to display the frame rigidity is obtained.

  A bicycle frame selection method and selection apparatus according to the present invention will be described below with reference to the drawings. 1 to 6 show an embodiment of a frame selection method and a selection apparatus according to the present invention. FIG. 1 is a block diagram showing the flow of the frame selection method and the selection apparatus according to the present invention. FIG. FIG. 3 is a diagram of an example of a rigidity selection table used in the frame selection method and selection apparatus of the present invention, and FIG. 4 is displayed in the frame selection method and selection apparatus of the present invention. FIG. 5 and FIG. 6 are schematic flow charts up to display of the frame skeleton in the frame selection method and frame selection apparatus of the present invention, and FIGS. 7 and 8 are the frame selection method and frame selection apparatus of the present invention. It is a general | schematic flowchart of selection of the frame rigidity in.

  As shown in FIG. 1, the basic configuration of the foam selection method and selection apparatus of the present invention is suitable for the user by using the ride measuring means 2 that can change the front and rear positions and the vertical positions of the handlebars. In the bicycle frame selection method for selecting a frame, the user's physique, purpose application, user level, etc. are input to the condition input means 20, and the saddle and handlebar front and rear positions and vertical positions are calculated based on a predetermined calculation formula 22. It is characterized by obtaining the position and frame skeleton.

  As shown in FIG. 2 (B), the boarding measurement device 2 used in the frame selection method and selection device of the present invention is an installation type installed on the floor or the like, and has a handle at the front of the frame base 2A. The adjustment unit 3 is installed so as to freely move up and down, and the saddle adjustment unit 4 is installed so as to freely move up and down. A handle bar 5 is disposed on the upper horizontal portion of the handle adjustment unit 3 so as to be adjustable in the front-rear direction. A saddle 6 is disposed to be adjustable in the front-rear direction with respect to the horizontal portion at the upper end of the saddle adjustment unit 4.

  At the center upper part of the handle bar 5, a display unit 7 for measured values and the heart rate measuring means 10 are installed. Further, a crank 8 is pivotally supported at an appropriate position of the frame base 2A substantially on the extension line of the saddle adjustment unit 4. Further, a load setting lever 9 connected to the load applying means is installed at an appropriate position on the upper side surface of the frame base 2A. The user gets on the boarding measuring means 2 and wears the heart rate measuring means 10 on the earlobe, arm or chest, and the load setting lever 9 applies a load of a predetermined value to the rotation of the crank 8 by the load applying means not shown. In the set state, the crank rotation speed (rpm), heart rate (pulse rate) / min, and generated power (watts), etc. when the pedal is stroked are displayed on the measured value display section 7. .

  As shown in FIG. 2 (A), each constituent means used in the frame selection method and the selection apparatus of the present invention is a personal computer 1 installed at a store or the like where the user selects a frame. And so on. A personal computer 1 or the like installed in each store is connected to a service server or the like through a communication network through the Internet. The server can review predetermined calculation formulas and setting / maintenance of a stiffness selection table, which will be described later, stored in the personal computer 1 or the like based on safety standards or periodically or arbitrarily as necessary.

  FIG. 1 is a block diagram showing a flow of a frame selection method and a selection apparatus according to the present invention. Here, each constituent means other than the boarding measurement means 2 enclosed by a square is installed in the personal computer 1 or the like in FIG. The user's physique, purpose application, user level, etc. are input to the condition input means 20 using a personal computer keyboard or the like, and the saddle and handlebar front and rear positions, vertical positions and the Frame skeletons such as the length of each tube, the angle between the tubes, and the relative position, which are related components of the frame member, are obtained, displayed by the position / skeleton display means 23, and presented to the user. Thus, the user can automatically select a position and frame skeleton suitable for the user without being affected by variations in the experience and skill of the measurer at each store or the like.

  Next, when the user gets on the riding measurement means 2 set by the position and the vertical position of the saddle and the handlebar displayed by the position / skeleton display means 23 and the frame skeleton, The riding posture detection means 25 detects the position and the riding posture by the skeleton (it can be automatically detected by a sensor or the like, but the riding posture detection means provided in the riding measurement means 2 shown in FIG. 2B) Can also be read by each memory 3A, 3B, 4A, 4B). Here, the joint angles of the user's shoulder, elbow, waist, and knee are measured, and fine adjustment is made in light of the optimum joint angle as the riding posture. The riding posture is also finely adjusted for positions and skeletons where the user's riding posture is uncomfortable. Next, a load is set and applied to the rotation of the crank 8 by the load applying means 26 according to the rotation of the load setting lever 9. The pulse of the user who steps on the pedal provided at the end of the crank 8 in the ride measuring means 2 is measured by the heart rate measuring means 10, and the maximum aerobic power of the user is measured by the actual work rate measuring means 27 from the measured value. Is estimated from the estimated maximum aerobic power with the stiffness selection table 29, calculated by the frame stiffness calculation means 28 to obtain the frame stiffness, and the result is displayed and presented by the frame stiffness display means 30. To do.

  FIG. 3 shows an example of a stiffness selection table used to calculate the frame stiffness from the user's maximum aerobic power measured and estimated by the boarding measurement means 2 to which a load is applied. Specifically, the measurement is performed twice under different load conditions, the result is input to the calculation means, an estimation formula is obtained, the maximum heart rate is substituted, and the maximum aerobic power is estimated. (The maximum heart rate is obtained from the age, but if it has been measured, the measured value is used.) The frame rigidity (eg, Y) is obtained from the estimated maximum aerobic power (eg, Pn) and the stiffness selection table. The rigidity selection table has characteristics for each frame component (for example, characteristic X1 represents mechanical characteristics such as rigidity of the top tube, characteristic X2 represents rigidity of the down tube, and characteristic X3 represents torsional rigidity of the seat tube). It is created based on the data accumulated as an experience value to obtain. Display frame stiffness = F (U, Y), that is, a function of the user individual characteristic U and the frame stiffness Y reflecting the user's intention in consideration of factors such as user preferences. Elements such as user preferences are incorporated into the stiffness table as stiffness correction terms.

Therefore, it can be said that the rigidity selection table in FIG. 3 represents a set of characteristics Xm of the frame component m. That is, the frame rigidity (Y) can be obtained by looking sideways at the row of the maximum aerobic power (Pn) estimated in the table. Its frame rigidity is
P (n) → Y (n) = X1 (n) + X2 (n) + X3 (n)... Xm (n)
It will be represented by
Next, the obtained frame rigidity Y is compared with the user individual characteristic U (specifically, the desired frame rigidity), and if the difference is large, correction is performed to adopt an intermediate value. The result of this correction is finally displayed and becomes the frame rigidity presented to the user.

FIG. 4 is an example of positions (FIG. 4A) and frame skeletons (FIG. 4B) displayed by the frame selection method and selection apparatus of the present invention.
FIG. 4A shows an example of the position of the handle saddle. here,
Reference 1. 1. Stem center horizontal distance code 2. Stem center vertical distance code Saddle center horizontal distance code4. 4. Saddle center vertical distance code Saddle height,
Reference numeral 6. 6. Saddle receding width code Saddle / stem center height difference code8. Stem center distance code 9. Saddle tip / stem center distance code 10. Seat angle

FIG. 4B is an example of a frame skeleton. here,
Reference S1. Frame size code S2. Top tube length code S3. Head tube length code S4. Caster angle code S5. Sheet angle code S6. Offset code S7. Trail code S8. Front center code S9. Rear center code S10. Hanger descending code S11. Wheelbase

FIG. 5 and FIG. 6 are schematic flowcharts up to frame skeleton display in the frame selection method and frame selection apparatus of the present invention.
1. On the menu screen,
On the screen of a personal computer etc., it is shown that it is a work screen for selecting the saddle and handle position and frame skeleton and frame rigidity,
2. On the profile input screen,
Enter gender, height, inseam, weight, etc. based on the user's physique. An input screen for correcting the position of the center of the saddle is also displayed as a saddle position calibration screen. Used when the saddle is replaced.
3. On the survey input screen,
For the purpose, enter whether it is a competition-oriented race, enduro / long-distance race, health-making / fitness-oriented, and enter the user level as beginner, beginner, intermediate, or advanced Enter rigid, medium, or soft as the frame rigidity preference, and whether you want straight running stability, standard ride quality, or high responsiveness as the exercise performance (ride) Enter whether you want the taste.

Based on the input values such as the user's physique, purpose application, user level, etc., as described above, the position of the saddle and the handlebar at the front and rear positions and the vertical position and the frame skeleton based on the predetermined calculation formula 22 Is required,
4). On the initial position screen,
In the state of riding on the boarding measuring means 2, the saddle front-rear direction, the vertical direction, the front-rear direction of the handle, the vertical direction of the handle and the skeleton of each part of the frame shown in FIG. And the position value is displayed as the current value. That is, the display unit 23 displays the recommended skeleton calculated under each condition input by the condition input unit 20 and the numerical value of the position of each part of the frame, so that the user can confirm this. . After that, fine adjustment of the position is carried out by the staff of the store.

FIG. 7 and FIG. 8 are schematic flowcharts of frame rigidity selection in the frame selection method and frame selection apparatus of the present invention.
5). On the fine adjustment memory value input screen,
Enter the values for the saddle front / rear direction, vertical direction, handle front / rear direction, and handle vertical direction on the input screen for the handle and saddle values after fine adjustment, and the skeleton and position of each part of the frame after fine adjustment Is displayed with a frame diagram.
6). On the rigidity selection test execution question screen,
When asked whether or not to perform the rigidity selection test of the frame, if you do not want to perform the rigidity selection test, select NO and move to the rigidity display screen on which the standard rigidity frame example is displayed, and if you want to perform the rigidity selection test, Select YES to move to the stiffness selection test screen.
7). On the rigidity test selection screen,
Pedaling is performed for two minutes, for example, under two conditions with different crank load setting lever positions (different set crank loads) and different crank rotation speeds, and the obtained pulse / power is measured. Thereby, the measurement result is input to the calculation means, and the user's maximum aerobic power is estimated from the estimation formula. Then, the frame rigidity is selected by comparing with the rigidity selection table of FIG. 3 from the estimated maximum aerobic power of the user.
8). On the rigidity result display screen,
The ride quality of the selected optimal stiffness frame is displayed on the screen as text, and the stiffness specification of the frame and the position of each part of the frame are displayed together with the frame skeleton diagram.

  Here, the frame rigidity calculated as suitable for the user by checking with a predetermined rigidity selection table according to the measured physical ability of the user is presented as a ride quality. For example, rider (passenger) level (beginner, beginner, intermediate, advanced), type (power type, endurance type), pedaling feel (hard, soft), scene (sprint, climbing) , Short distance, long distance), etc., the required frame rigidity is presented with explanations such as “too stiff for XX riders” and “higher torsional rigidity suitable for △△ scenes”. “Although it is a high-rigidity model, by suppressing the torsional rigidity, it is suitable for riders who are lightweight but have excellent leg strength and are good at sprinting.” Or "" It is a model that intentionally suppresses the lateral stiffness around the hanger and reduces leg fatigue even during long rides. However, by keeping the torsional rigidity moderate, "This is a model with improved responsiveness," and these are displayed as the frame rigidity.

  Thus, according to the bicycle frame selection method and selection apparatus of the present invention, based on the input values such as the user's physique, purpose application, and user level, as described above, based on the predetermined calculation formula 22 Since the position and frame skeleton of the saddle and handlebar in the front and rear position and the vertical position can be automatically obtained, variations by measurement staff such as dealers can be eliminated as much as possible, and the user's physique and physical strength It is possible to select a frame comprehensively according to the intention or the like. Furthermore, the maximum aerobic power is estimated by setting a predetermined load on the crank by the ride measurement means and measuring the user's physical ability, and a predetermined rigidity selection table is obtained from the estimated maximum aerobic power of the user. The optimal frame stiffness for the user can be selected by checking and comparing the frame stiffness that has been selected from the standard rigid frames prepared so far, not only the user's physique, but also the user's physical strength, age, It became possible to automatically select the optimal frame rigidity in consideration of the level of experience, etc., as well as preferences, etc., which greatly contributed to the custom-made work of the bicycle frame.

  As described above, the examples of the present invention have been described. However, within the scope of the present invention, the types of conditions to be input to the condition input means (the user's physique, purpose application, user level, etc., as necessary) Appropriate elements such as age, grip strength, arm length, etc., which are unique to the user, are adopted, and the shape and type of the riding measurement means (to change the position of the handlebar front and rear and vertical positions) In addition, the saddle mounting angle can be adjusted, the measurement value display section and its display contents, the heart rate measurement means type and its installation form can be selected as appropriate), the pedal load setting form (load setting lever Appropriate methods such as increasing the magnetic force applied to the magnetic brake provided on the pedal shaft in response to the swing can be adopted), and the form of the calculation formula (uniquely determined by the user's specific measured values such as the physique) In addition to the general formula for the position of the normal handlebar that is used, it is reflected in the form of the rigidity selection table (the user's preference for frame rigidity, etc.) It is expressed as a function of user individual characteristics U and frame rigidity Y, and is created based on data obtained by accumulating the characteristics of each frame component as an empirical value in order to obtain the target rigidity. It is also possible to capture correction terms based on measured values of arm strength and leg strength), physical ability measurement form (those that estimate the maximum aerobic power by measuring pulse and actual work rate by pedaling with load applied) However, if there is other appropriate physical ability measuring means, it can be adopted), a display form of the position display means and frame rigidity display means (preferably a personal computer). It may be appropriately selected for emission window is placed on) or the like.

1 shows one embodiment of a frame selection method and a selection apparatus according to the present invention, and is a block configuration diagram that also serves as a flow. FIG. It is a block diagram of the flame | frame selection apparatus of this invention. It is a table | surface figure of the example of a rigidity selection table used with the flame | frame selection method and selection apparatus of this invention. It is an example figure of the position and frame skeleton which are displayed with the frame selection method and selection device of the present invention. It is a schematic flowchart in the input screen in the frame selection method and frame selection apparatus of this invention. It is a schematic flowchart until the position and frame skeleton display in the frame selection method and frame selection device of the present invention. It is a general | schematic flowchart of selection of the frame rigidity in the frame selection method and frame selection apparatus of this invention. It is a frame rigidity result display screen figure in the frame selection method and frame selection device of the present invention. It is explanatory drawing of the determination method of the frame size of the bicycle of the 1st prior art example. It is explanatory drawing of the selection apparatus of the bicycle frame size of a 2nd prior art example. It is explanatory drawing of the bicycle frame size calculation apparatus of a 3rd prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 PC 2 Boarding measurement means 3 Handle adjustment part 4 Saddle adjustment part 5 Handlebar 6 Saddle 7 Measurement value display part 8 Crank 9 Load setting lever 10 Heart rate (pulse rate) measurement means 20 Condition input means 21 Position skeleton calculation means
22 Calculation Formulas 23 Position Skeleton Display Unit 25 Riding Position Detection Unit 26 Load Applying Unit 27 Actual Work Rate Measuring Unit 28 Frame Rigidity Calculation Unit 29 Stiffness Selection Table 30 Frame Rigidity Display Unit

Claims (7)

A bicycle frame selection method that uses a ride measurement means that can change the position of the saddle and handlebar in the front and rear and up and down positions. The bicycle frame selection method requires conditions such as the user's physique, purpose, and user level. A bicycle frame selection method comprising: inputting to an input means; and obtaining a position and a frame skeleton of a front / rear position and a vertical position of the saddle and handlebar based on a predetermined calculation formula. The physical ability of the user is measured in a state where the load by the load applying means is applied to the pedaling mechanism in the boarding measuring means, and the measured value is collated with a predetermined rigidity selection table to obtain a frame rigidity suitable for the user. The bicycle frame selecting method according to claim 1, wherein the bicycle frame is selected. 3. The bicycle frame selection method according to claim 2, wherein a ride quality of the obtained frame rigidity is presented. In the measurement of the physical ability, the pulse and the actual work rate are measured, the maximum aerobic power is estimated from the measured values, and the rigidity suitable table is compared with the stiffness selection table from the estimated maximum aerobic power. 4. The bicycle frame selection method according to claim 2, wherein rigidity is obtained. The bicycle frame selection method according to claim 4, wherein a rigidity correction term that reflects a user's intention is added to the rigidity selection table. A bicycle frame selection device used in the bicycle frame selection method according to claim 1, comprising: condition input means for inputting a user's physique, purpose application, user level, etc .; A position and frame skeleton calculating means for calculating the position and frame skeleton of the saddle and the handlebar based on the calculation formula, and a position display means for displaying the position and frame skeleton. Characteristic bicycle frame selection device. 6. A bicycle frame selection device used in the bicycle frame selection method according to claim 2, wherein condition input means for inputting a user's preference for frame rigidity, and riding measurement means for the user to ride. A load applying means provided in the boarding measuring means, a pulse rate measuring means, an actual work rate measuring means, a frame stiffness selecting means for obtaining a frame stiffness suitable for the user using a predetermined stiffness selection table, A bicycle frame selection device comprising frame rigidity display means for displaying the selection result.

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