JP2001048073A - Mounting structure for saddle of bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To impress driving force with an optimum force factor on pedals of a gear crank when traveling a bicycle on an uphill road and to maneuver the bicycle at a stable seating attitude. SOLUTION: A fork type seat post 7' is unrotalably provided at a seat post at a connection part of a stand tube 5 and a rear fork of a bicycle and an upper pipe. On the seat post 7', a main saddle 8 is provided at a rear side and a sub-saddle 8' is provided at a front side movable in height. As a result, a driver keeps a stable attitude in a seated state on the sub-saddle 8', driving force can be effectively impressed on a rear wheel with an optimum factor to travel smoothly comfortably and safely.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The disclosed technology belongs to the technical field of a saddle which enables a rider to ride a bicycle smoothly with the highest power factor and to operate the bicycle safely.

[0002]

2. Description of the Related Art As is well known, recently, with the rise of various industries and the improvement of citizens' lives, the transport of goods and things has become extremely large, and accordingly, means of transportation between various facilities, homes, stations, and the like. With the spread of private cars, the traffic of buses and trucks on general roads has reached the peak of traffic, and bicycles are a convenient means of commuting for office workers and commuting to students. It is useful as a means in conjunction with health orientation, and is increasingly used for housewife shopping and pick-up and drop-off at kindergartens.

[0003] An enormous number of such bicycles are used, and so-called shortage of bicycle parking lots and congestion cause social problems. When bicycles are run, they are sewn between articles and automobiles. Because of the necessity, light bicycles and sport-type bicycles have been relatively frequently used in addition to ordinary bicycles.

FIG. 6 schematically shows a general embodiment of the bicycle. In the bicycle 1, the frame has sufficient strength and rigidity, is lightweight, and does not affect the economic cost. As a structure, a lower pipe 4 for connecting the upper pipe 2 (there is also a curved type) and a lower chain stay 3 (in the design mode, the upper pipe 2 is made smaller and the diameter of the lower pipe 4 is made larger. A rear fork 4 'is provided, and a vertical pipe 5 is inclined between the respective pipes, so that the bicycle 1 and the upper pipe 2,
Further, a saddle 8 is provided via a spring 9 or the like via a seat post 7 so as to be able to be adjusted to be able to extend and contract at a connecting portion 6 with the bicycle 1. A front wheel 13 such as a rubber tire is provided through a spoke 12 to a fork 11 extending obliquely forward from a front connecting portion 10 and a steering wheel 1 for steering.
4 is the front pipe 15 and the rear wheel 16 is the chain stay 3
A drive gear (not shown) is provided at the intersection of the upright pipe 5, the lower pipe 4, and the chain stay 3 at the intersection between the rear wheel 16 and the rear wheel 16 '. A chain is stretched between a small-diameter driven gear provided at the center of the pair, and pedals 17, 17 as driving sources for traveling are symmetrically provided at the tips of a pair of gear cranks 18. The driver sits on the saddle 8, puts the foot of the foot on the pedal 17, rotates the gear crank 18 to give a driving force to the rear wheel 16, and
It is a general mode that the vehicle is steered and a predetermined traveling is performed according to FIG.

[0005] As is well known, houses in an urban area such as a station are in a dense state, and thus new towns and housing complexes are being constructed one after another in suburbs.

For this reason, commuters and students from the new town or the housing complex are encouraged to travel from home to the station using the bicycle 1 in order to avoid traffic congestion and because of the recent health-oriented reasons. It has become to.

[0007] Thus, when the bicycle 1 is traveling, FIG.
As shown in the figure, when the road 19 is in a flat general road condition, the driver sits down on the saddle 8 as usual and flexes the tarsal portion 23 through the shin portion 22. , A driving force is transmitted to the bicycle 1 through a gear crank 18, a driving power is transmitted to a rear wheel 16 by a chain (not shown), and a steering wheel 14 is provided to steer the front wheel 13. Generally, such an embodiment is performed.

[0008] However, as described above, suburban new towns which are somewhat distant from the city area, and housing complexes are generally located in newly constructed lands such as hills and valleys in mountainous forests. There are many roads to the suburb of the station from the orchids to the city area, including gentle slopes and steep slopes, and the driver 20 should take the short cut as much as possible due to time constraints such as trains. Normally, therefore, there are generally many steep slopes and steep roads 19 'as shown in FIG. 8 in a so-called back town from the city center to the suburbs.

However, for the bicycle 1, the pedal 17
The efficient power factor of the force by the foot 23 applied to the
As shown in FIG. 9, when the gear crank 18 pushes (presses) the pedal 17 from the top to the bottom against the road surfaces 19 and 19 ′, the angle of the upper side θ ₁ and the lower side θ ₂ from the parallel posture as shown in FIG. It is well known both empirically and experimentally that a range, for example, an angle range of 40 degrees to 45 degrees, has a most efficient power factor and a good driving force on the gear 24. Running requires a great deal of leg strength, and as described below, no running force is required, and it is possible to perform a running that is considerably unnecessary.

Therefore, as shown in FIG. 8, the driver 20 optimally drives the rear wheel 16 through the gear 24 to drive the bicycle 1 on the uphill road 19 ′ such as the slope. As shown in FIG. 7, when the thigh 21 and the shin 22 are bent with respect to the saddle 8 so that the power is transmitted at the power factor, the applied force of the foot 23 to the pedal 17 is not sufficient. Then, the user lifts his / her hips from the pedal 8 to take a so-called standing posture, minimizes the bending of the thigh 21 and the shin 22, and maximizes the force applied to the pedal 17 by the tarsal part 23. The running operation is performed so as to concentrate on the foot of the bicycle 1, and the operation of the steering wheel 14 is performed to stabilize the steering of the bicycle 1 during the running operation.

[0011] Such a phenomenon is a running mode that is usually taken by a normal bicycle driver, and can be said to be an extremely reasonable driving posture.

[0012]

However, as shown in FIG. 8, when riding uphill on the uphill road 19 ', the driver 20 rides the pedals 17 alternately with the pedals 17 while standing on the bicycle 1 while standing. In the posture in which the force is applied, only the stabilization is performed by the handle 14 with both hands. Therefore, as shown in FIG. On the other hand, there is a disadvantage that stability is lacking, and there is a disadvantage that steering operation becomes extremely difficult.

The bicycle 1 as shown in FIG. 8 has a disadvantage that when the driver 20 stands in a standing posture, the waist is not seated on the saddle 8 and thus there is an unexpected danger. there were.

Also, when the vehicle stops at the intersection at a red light at the intersection, there is a minus point that the foot 23 may not reach the ground and may fall.

[0015]

The object of the invention of this application is to commute by bicycle,
When using it for commuting to school or shopping, the driver uses the main saddle and the sub-saddle that are attached to the front and rear of the bicycle by the driver in order to optimally apply power to the rear wheels even on general roads including uphill roads such as uphill roads. The main saddle and the sub-saddle, which apply the sawing force at the optimum power factor while maintaining a stable posture selectively seated on the pair of saddles, can be provided. As the wearing position can be freely selected according to the driver's posture,
It is another object of the present invention to provide an excellent bicycle saddle mounting structure that can be used in a bicycle industry in the transportation industry by taking a stable posture and stopping operation.

[0016]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the construction of the invention of the present application for solving the above-mentioned problems is to combine a standing pipe, an upper pipe and a rear fork of a bicycle. In the attachment structure of the saddle provided at a plurality of positions with respect to the seat post provided at the portion, the sub saddle is located at a position where the driver's thigh, shin, and tarsal portion with respect to the pedal of the gear crank generate the maximum power factor. The main post is provided so as to be positioned in front of the main saddle so that the seat post can be freely fixed, so that the seat post is a fork type parallel to the upper pipe with respect to the joint. In addition, if the seat post is made to be extendable and retractable, the sub saddle can be raised and lowered and fixed to the upper part of the gear crank with respect to the main saddle, The sub-saddle may be arranged on a retractable seat post, the width of the sub-saddle may be narrower than the width of the main saddle, and in addition, the sub-saddle may be substantially at the center of the pedal gear crank. It takes technical measures to be able to be set up in the upper position and to be able to be set up higher than the main saddle.

[0017]

In the above construction, when the bicycle is used for commuting, commuting to school or shopping, and needs acceleration on an ascending road or a normal road, a driving force is applied to the pedal at an optimum power factor from the thigh. To transmit power to the tarsal part through the shin,
A main saddle set for a normal bicycle with a sub saddle for selectively seating the waist so that the weight can be added linearly without bending the thighs, shins, and feet as much as possible. Located ahead of the position, and
The seat post to be connected is set in a fork shape from the base end of the standpipe through the joint so that the seat can be seated at a high position and the pedal can be operated with the optimum power factor. Or through a spline, etc.
The condition in which the sub-saddle is placed in front of a predetermined position and the force is efficiently applied to the sub-saddle is when the foot is directly below, and the foot is extended almost linearly from a position where the knee is not bent so much (position). It is.

The sub-saddle is set and fixed as described above, or the sub-saddle is lifted from the folded state, for example, in a downward position as desired, between the upper pipe and the connecting portion which are close to the lower pipe. For the main saddle of
Attach it to the position in front of the connection, fix it, and place a sub saddle separate from the main saddle at a position almost directly above the pedal and at a high position, and change the sitting posture from the main saddle to the sub saddle. In order to make the width of the sub saddle narrower than that of the main saddle, the transfer can be performed smoothly, and the driver stabilizes the driving posture in the posture sitting on the main saddle in the front posture. It is maintained in a posture, and the foot is extended as straight as possible to the pedal through the thigh and shin as much as possible with respect to the pedal so that the driving force can be applied at a comfortable power factor and a stable seat is provided. It is possible to run smoothly in the wearing posture, and in the stopped state at the intersection, it is possible to sit on the main saddle at the rear position and the foot rests on the ground to take a stable posture, and the main saddle in each aspect , Sub saddle is luck In which a fixed position so as to maintain the seating state is to be selected in a state where driving position of the person most stable.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of embodiments of the present invention as embodiments of the present invention, with reference to FIGS. 1 to 5. FIG.

It is to be noted that the same parts as those in FIG.

The embodiment shown in FIG. 1 is an embodiment of a fork-type seat post 7 ′, which is obliquely planted substantially parallel to the pipe 5, and the fork-shaped seat post 7 ′ is set parallel to the upper pipe 2. However, the transmission of the driving force to the pedal 17 in the conventional standing posture shown in FIGS. 8 and 9 is such that the sawing force can be applied at the optimum power factor as described above. The sub-post 20 is non-rotatably erected via a fork 71 via a screw 21 to a post 20 'erected from the (or the connecting portion 6), as shown in FIG. A seat post 19 on which the main saddle 8 is set is installed at the rear, and the height of the seat post 19 'can be adjusted back and forth through a predetermined fixed span via a screw 21. As shown in FIG. The width d is smaller than the width D. Saddle 8 'is to be set.

An extension joint 21 'is split on the sub saddle side of the fork type sheet post 7'.

In this embodiment, since the sub saddle 8 'is set at the set position of the front position and posture, the driver 2
In the case of No. 0, a stable driving posture can be obtained by using a kind of three-point support system together with the steering wheel 14, and the running can be performed smoothly and comfortably.

In this embodiment, when the driver 20 normally travels or climbs a hill, the sub saddle 8 'is used.
Applying the driving force at the optimal power factor in the posture sitting on the pedal 1
7 so that the sub-saddle width d is narrow when shifting to the front position / posture of the sub-saddle 8 '.
It is desirable to use a fixed posture by setting the narrower width so that it can be shifted without interference.

After applying a driving force to the rear wheel 16 to the pedal 17 with one foot, the gear crank 18
By rotating by 0 degree, the driving force can be applied with the optimum power factor similarly with the next one leg next time with a predetermined cycle.

In the embodiment shown in FIG. 2, the height of the sub saddle 8 'can be adjusted by the screws 21 and 21', and the seat post 20 'provided at the base end of the vertical pipe 5 is provided. Can be adjusted through a screw 21 ′ in the middle thereof. Also, as shown in FIG. 4, when the main saddle 8 is used regularly, when the sub saddle 8 ′ interferes, the main saddle 8 can be turned forward, As shown, it is also possible to extend through the spline section 22.

In this embodiment, an optimum power factor can be applied in the same manner as in the turning method of the pedals 17, 17 seated on the main saddle 8 of the above-described embodiment, and the substantial operation and effect are the same as those of the above-described embodiment. In the embodiment shown in FIG. 5, the driver 20 sits on the main saddle 8 and holds the thigh 21 and the shin 22 in a straight line with the steering wheel 14 and a stable driving posture pedal 17 by a kind of three-point support system. It is possible to apply most of the weight to the tarsal portion 23 and to touch the ground to make it safe, or to apply the optimum driving force to the pedal 17 most effectively within the range of θ ₁ and θ ₂ shown in FIG. You can do it.

It is by design that the sub saddle 8 'may be of a retrofit type.

In this embodiment, the upper pipe 2 is connected to the lower pipe 4 and the front pipe 15 by a main saddle 8 like a conventional women's bicycle.
This type is applied to a light-weight sports type bicycle in which a space is exposed below the front of the seat post, and is vertically moved from the upper hinge pin 23 of the seat post 7 using the lower front space of the main saddle 8. The sub-seat post 19 ′, which is rotatable in the direction, is bent and extended, and a sub-saddle 8 ′ is provided at the tip of the sub-seat post 19 ′ via a spring so that the seat post 7 can be swung up and down via the hinge pin 23 of the seat post 7.
As shown in FIG. 4, the sub-saddle 8 'is connected to the main saddle 8 so as not to interfere with the main saddle 8 so as to be of a forward extending type. And can apply the most efficient running force to the pedal 17 and apply the driving force to the rear wheel 16 with a suitable power factor in a stable posture with the handle 14 and the three-point support state. In this embodiment, the operation and effect achieved are the same as those of the above-described embodiments, and in the embodiment shown in FIG. 4 in a set shape extending before connection to the main saddle 8 of the sub saddle 8 ′, a stopper (not shown) for the sub seat post 19 is provided. By maintaining the fixed posture of the sub-sheet post 19 by a pin or the like, a driving force with a stable optimum power factor can be applied.

In this embodiment, since the sub saddle 8 ′ is folded downward in the front lower space in the operation using the rear main saddle 8, the driving force is applied to the pedal 17. Has no effect.

In the invention of this application, it is up to the manufacturer to adjust the fixed state of the saddle at any time by changing the rear and front of the main saddle 8 and the sub saddle 8 '. It is merely a design change, and there is no difficulty in realizing it.

In the embodiment shown in FIG. 3, the width d of the sub saddle 8 'is made narrower than the width D of the main saddle 8, and the front is located almost directly above the center of the pedal 17 gear crank. And, it is a mode to be at a predetermined height higher,
Sit on the sub-saddle 8 'to maximize the sawing force, pedal the pedal 17 in the upright position as much as possible, and retreat and sit on the main saddle 8 so as not to fall down when stopping etc. The stable posture can be obtained by putting the foot on the land, and the sub-saddle 8 'is formed to have a narrow width D so that there is no interference when a sitting posture is required, and no trouble occurs.

Therefore, in this embodiment, the driver can apply the applied force to the pedal 17 with the most preferable power factor while sitting on the sub-saddle 8 'in a posture close to the standing posture. When the vehicle is stopped at a traffic light or the like, the seating position can be shifted to a position behind the main saddle 8, and the seat can be lowered to prevent the vehicle from falling.

Then, when traveling again, the runner is removed in a posture sitting on the main saddle 8, and then, at an appropriate time, is moved to the sub-saddle 8 'with the sitting posture in front, and the most efficient power factor is obtained. Try to drive.

The embodiment of the application of the invention of this application is not limited to the above-described embodiments. For example, the main saddle 8 is usually of a type in which the front is longer than the center, and the front sub-saddle 8 'is used. When the driving force on the pedal 17 is adjusted to an optimum power factor, the user turns the saddle 180 degrees back and forth through the seat post 7 when the driving force on the pedal 17 is set to the optimum power factor. To change the direction, extend the longer sub-saddle 8 'forward, sit on the long-extended sub-saddle 8', and drive the pedal 17 in a stable posture of a three-point support system. Apply force at the optimal power factor, or
態 様 can be mounted on the main saddle 8 by a trader, and various modes can be adopted.

The selection of the size of the sub-saddle 8 'for the seating portion of the main saddle 8, the strength and rigidity of the connection mode of the seat post to the sub-seat post 19, the change of the material posture, and the like are within the scope of design changes for those skilled in the art.

Furthermore, in the case of a bicycle race auto-drive vehicle, the driver 20
It is also within the scope of the design change that the sub-saddle 8 'is retrofitted so that the posture becomes substantially linear and the inclination posture is made most efficiently.

The target bicycle can be used not only for the type used for ordinary commuting to school and shopping, but also for the sports type and the light type using the transmission gear. This means that not only bicycles for adults but also bicycles for young children can be applied.

[0039]

As described above, according to the invention of the present application, basically, when a bicycle runs uphill on a slope or the like, a driving force is applied to a pedal attached to a gear crank with the highest power factor. In order to demonstrate that the lightest running posture can be achieved by applying the weight on the tarsal region and applying a linear force to the pedal in the set range via the thighs and shins that can be performed, Even if you do not put it, the feet are directly below and the installation directly below does not turn downwards in a sitting position as if the feet are thrown forward, it is the most efficient, stable with the waist sitting on the sub saddle In an unsteady posture, allow the driver to apply a linear driving force to the pedal via the thigh and shin, with his / her feet resting on the pedals, I can drive in a stable posture without taking
An excellent effect that smooth and light running can be achieved.

Then, the force can be output or the force can be applied with the highest power factor, and the foot is almost fully extended when the pedal 17 is at the lowest position, and the efficiency of the foot is optimized. You can do it.

Even though the driving force having the optimum power factor can be applied by stepping, the driver can sit on the sub-saddle 8 'with his waist, and can drive with the handle 14 in a three-point supporting posture and in a safe posture. The excellent effect that the vehicle can run safely even on a narrow road or a curved steep slope is exhibited.

The sub-saddle 8 'can be set on the fork-type seat post 7, and the sub-saddle 8' can be set in the space at the lower front part of the main saddle 8 by moving the seat post 7 up and down. Is provided so as to be able to be raised and lowered by retrofitting or the like, so that there is no hindrance to normal driving in a sitting posture on the main saddle 8 which is rearwardly mounted, and the difficulty of a dealer and a dealer according to the preference of the driver concerned. Since the optimal sub-saddle 8 'can be mounted in the front posture by the adjustment without the need, unnecessary adjustment or the like is usually unnecessary, and the driving force can be transmitted at an optimum power factor in a stable state. The effect is achieved.

The sub-saddle 8 'can be selected according to the driver's preference.
By performing the movement adjustment to the high and low displacement positions, an excellent effect that the driver can run optimally and run with an optimal power factor can be obtained.

The structure is simple because the main saddle 8 and the sub saddle 8 'need only be attached to the seat post 7 provided on the upright pipe 5 so as to be able to move back and forth and up and down freely. An excellent effect is obtained in that the initial adjustment is easy without replacement or the like, and the use is cheap.

It is needless to say that the sub-saddle can be used not only on uphill traveling but also on an ordinary regular road.

When the vehicle is stopped at a red light at an intersection or the like, the vehicle may become unstable in a posture of sitting on the sub saddle and may fall down. An excellent effect is achieved in that a stable state is maintained by setting the posture to reach the ground.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an embodiment of the present invention.

FIG. 2 is a side view showing a state where both saddles are set.

FIG. 3 is an arrangement plan view of both saddles.

FIG. 4 is a side view of another embodiment of a connection mode between the saddle and the sub saddle.

FIG. 5 is a side view of another embodiment of the bicycle according to the present invention.

FIG. 6 is a schematic side view of a normal bicycle.

FIG. 7 is a schematic side view schematically showing a sitting state of the normal bicycle in a sitting posture.

FIG. 8 is a schematic side view of a conventional mode in which a driver climbs a hill while standing.

FIG. 9 is a schematic schematic side view of the driving force application efficiency of the gear crank to the pedal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bicycle 5 Standing pipe 2 Upper pipe 4 'Rear hawk 6 Seat 7 Seat post 8 Main saddle 8' Sub saddle 17 Rear hawk 11 Thigh part 22 Shine part 23 Tarsal part 19,19 ', 20,21 Seat post

Claims (6)

[Claims] In a mounting structure of a saddle provided at a plurality of positions with respect to a seat post provided at a connecting portion of a standing pipe, an upper pipe and a rear fork of a bicycle, a sub saddle with respect to a main saddle is a driver with respect to a pedal of a gear crank. A thigh, a shin, and a foot portion of the bicycle saddle are provided in front of the main saddle so as to be positioned and fixed so as to be at a position where the maximum power factor is generated. 2. A bicycle saddle mounting structure according to claim 1, wherein said seat post is of a fork type parallel to an upper pipe with respect to said connecting portion. 3. The bicycle saddle mounting structure according to claim 1, wherein said seat post is extendable. 4. A sub-saddle, which is substantially above a gear crank, is freely adjustable for raising and lowering relative to the main saddle,
2. The bicycle saddle mounting structure according to claim 1, wherein the bicycle saddle is mounted on a telescopic seat post. 5. The bicycle saddle mounting structure according to claim 4, wherein the width of the sub saddle is narrower than the width of the main saddle. 6. A bicycle saddle according to claim 1, wherein said sub-saddle is located substantially directly above the center of the pedal gear crank, and is freely set at a position higher than the main saddle. Construction.