CN1163215A - bike - Google Patents

A bicycle convertible between a standard bicycle configuration for normal travel and an exercise type configuration in which the bicycle is propelled forward by alternating seat and pedal strokes, the seat stroke comprising the rider pressing weight against the seat causing it to descend driving the crankshaft and two in-phase pedals to rise, the pedal stroke comprising pressing both pedals down and re-ascending the seat. In the exercise type structure, the bicycle is prevented from stalling by the fact that when the pedals are in the bottom dead center, the weight of the saddle acts on the cranks at an angle to the vertical to maintain forward thrust, and when the saddle is in the bottom dead center, the pedals are just in front of the top dead center to maintain forward thrust.

自行车bike

本发明涉及一种自行车，尤其是一种驱动轮可被作用在踏板和车座上的力交替驱动而做旋转运动的自行车。The invention relates to a bicycle, in particular to a bicycle in which a driving wheel can be alternately driven by forces acting on a pedal and a vehicle seat to rotate.

本发明人的前英国专利申请文件(申请号为2111924)中描述了一种上述类型的自行车。这种自行车具有运动自行车的性质，可使骑车者的肌肉和关节得到锻炼，而不同于用常规自行车进行锻炼，同时还能体会到户外骑车的乐趣。A bicycle of the above type is described in the inventor's former UK patent application (Application No. 2111924). The bike has the nature of an exercise bike, allowing the rider's muscles and joints to be exercised differently than on a conventional bike, while still allowing for the enjoyment of riding outdoors.

上述自行车所适于锻炼的肌肉和关节与使用常规自行车的不同，由于这种原因，一个人如果希望使两种肌肉和关节都得到锻炼，就必须购置和保存两种不同类型的自行车。The aforementioned bicycles are adapted to exercise different muscles and joints than conventional bicycles, and for this reason, if a person wishes to exercise both muscles and joints, he must purchase and keep two different types of bicycles.

上述自行车在例如爬坡时，将低速到停止转动。骑车者向下将踏板从顶端停滞中心位置推到底端停滞中心位置，将车座向上推至最高位置。踏板的动量应该使踏板移过底端停滞中心位置。然而当骑车者连续向下推动踏板的某个时刻停留时间过长或当骑车者将几乎全身重量压在车座上，仅留下脚的重量在踏板上时，经常踏板的动量不足以使其通过底端停滞中心位置。一旦踏板失去了动量，垂直作用在车座上以骑车者的重量不足以使踏板通过底端停滞中心位置。The above-mentioned bicycle will slow down to a standstill when, for example, climbing a hill. The rider pushes the pedals down from the top center of stagnation to the bottom center of stagnation and pushes the saddle up to the highest position. The momentum of the pedal should move the pedal past the bottom dead center position. However, when the rider continues to push down on the pedals for too long at a certain moment or when the rider puts almost his whole body weight on the saddle, leaving only the weight of the feet on the pedals, often the momentum of the pedals is not enough to make the It stagnates in the center position through the bottom. Once the pedals have lost momentum, the rider's weight acting vertically on the saddle is not enough to push the pedals through the bottom to a stagnant center position.

上述自行车还有一个缺点，就是如果一个骑车者将车座安置在靠近并位于顶停滞中心位置的后面而踏板靠近并位于底端停滞中心位置的前面，结果将是骑车者的重量驱使车座下移，引起踏板向上转动并突然碰撞骑车者的小腿。本发明的目的之一是提供一种可适于两种锻炼并可克服上述缺点的自行车。A further disadvantage of the bicycle described above is that if a rider places the saddle near and behind the center of top stagnation and the pedals near and in front of the center of bottom stagnation, the result will be that the weight of the rider will drive the bike The seat moves down, causing the pedals to rotate up and suddenly hit the rider's lower legs. One of the objects of the present invention is to provide a bicycle which is suitable for both types of exercise and which overcomes the above-mentioned disadvantages.

本发明的目的是提供一种改进了的上述类型的自行车以克服现有技术中的许多缺点并提供一种有效和实用的锻炼用自行车。It is an object of the present invention to provide an improved bicycle of the above type which overcomes many of the disadvantages of the prior art and provides an efficient and practical exercise bicycle.

本发明一方面提供一种自行车，它可在锻炼型构造即车座和踏板相互之间通过曲轴异相相连以使自行车可如前述自行车的方式驱动，和常规构造即车座与车框架相连并且两个踏板通过曲轴异相联接以使自行车可以常规方式驱动这两种构造之间转换。骑车者可在锻炼型构造状态下使用进行锻炼，为交通目的在常规构造状态下使用自行车，或在旅行中当需要时从一种状态转变为另一种状态。One aspect of the present invention is to provide a bicycle which can be driven in an exercise-type configuration where the seat and pedals are connected to each other by a crankshaft out of phase so that the bicycle can be driven in the same manner as previously described, and in a conventional configuration where the seat is connected to the frame and The two pedals are coupled out of phase by the crankshaft so that the bicycle can be driven in a conventional manner to switch between these two configurations. The cyclist can use it in the exercise configuration for exercise, use the bicycle in the regular configuration for transportation purposes, or switch from one configuration to another when required while traveling.

本发明的另一方面提供一种自行车，其中驱动轮的转动由交替作用在踏板和车座上的力来实现，其中车座和踏板在这样一种结构中与曲轴相连，以使当踏板曲柄和踏板位于底端停滞中心位置时，位于车座和车座曲柄之间的传动装置和车座曲柄成一角度以使骑车者重量作用在车座曲柄上并具有推动自行车向前的机械优势。当踏板位于底端停滞中心位置时类似的停转现象也将减少。Another aspect of the present invention provides a bicycle in which the rotation of the drive wheel is achieved by alternating forces acting on the pedals and the saddle, wherein the saddle and the pedals are connected to the crankshaft in such a structure that when the pedal crank With the pedals in the bottom dead center position, the transmission between the saddle and the saddle crank is at an angle to the saddle crank so that the rider's weight is on the saddle crank and has the mechanical advantage of propelling the bike forward. Similar stalling is also reduced when the pedals are in the center of bottom end stagnation.

本发明的再一个方面是提供了一种自行车，其中驱动轮的转动由交替作用的踏板和车座上的力来实现，其中车座和踏板在这样一种结构中与曲轴相连，以使当车座位于底端停滞中心位置时，踏板曲柄和踏板刚刚位于顶端停滞中心位置的前端。当车座位于底端停滞中心位置时类似的停转现象将会减少。Still another aspect of the present invention is to provide a bicycle in which the rotation of the drive wheel is achieved by alternating forces on the pedals and the saddle, wherein the saddle and the pedals are connected to the crankshaft in such a structure that when With the saddle at the bottom dead center, the pedal crank and pedals are just ahead of the top dead center. This type of stalling is reduced when the saddle is in the center of bottom end stagnation.

本发明的再一个方面提供了一种自行车，其中驱动轮的转动由交替作用在踏板和车座上的力来实现，其中曲柄机构包括一限制车轮使其只能向前转动的机构以使当骑车者骑在车上而车座位于靠近顶端停滞中心位置时，骑车者不会被由于车座下降而上升的踏板碰撞小腿。Yet another aspect of the present invention provides a bicycle in which rotation of the drive wheel is achieved by alternating forces acting on the pedals and saddle, wherein the crank mechanism includes a mechanism that restricts the rotation of the wheel to only forward rotation so that when When the cyclist is on the bike with the seat positioned near the center of the top stagnation, the cyclist will not be bumped against the lower legs by the pedals that rise as the seat descends.

是否使用上述限制机构可由骑车者选择，因此，一个非常熟练的骑车者可不使用上述限制机构，允许踏板正转和反转，并通过车座和踏板的上下移动而推动自行车向前运动，车座和踏板总是位于顶端和底端停滞中心的同侧，而不使其通过顶端或底端停滞中心，而一个不太熟练的并不愿冒被碰撞小腿危险的骑车者可选用上述限制机构使车轮只能向前转动。Whether to use the above-mentioned limiting mechanism can be selected by the rider. Therefore, a very skilled cyclist can not use the above-mentioned limiting mechanism, allow the pedal to rotate forward and reverse, and push the bicycle forward through the up and down movement of the seat and the pedal. The saddle and pedals are always on the same side of the top and bottom centers of stagnation, without passing through the top or bottom centers of stagnation, and a less skilled cyclist who does not want to risk hitting his lower leg may choose the above A limiting mechanism allows the wheels to turn only forward.

本发明的其它目的和优点可见下例详细描述。Other objects and advantages of the present invention can be seen in detail in the following examples.

下面结合附图对本发明的优选实施例进行详细描述。Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

图1为自行车处于锻炼型构造的左侧视图；Figure 1 is a left side view of a bicycle in an exercise configuration;

图2为自行车处于常规构造的左侧视图；Figure 2 is a left side view of the bicycle in a conventional configuration;

图3为从车座到车座曲柄的传动装置的放大了的右侧视图；Figure 3 is an enlarged right side view of the transmission from the saddle to the crank of the saddle;

图4a、4b和4c为一种防止踏板反转的机构的一个例子的左侧视图。Figures 4a, 4b and 4c are left side views of an example of a mechanism for preventing pedal inversion.

本自行车包括一刚性自行车框架1，一前轮2，一后驱动轮3，右侧踏板4a和左侧踏板4b，一车座5，一曲轴6和一位于自行车右侧的驱动传动链7。The bicycle comprises a rigid bicycle frame 1, a front wheel 2, a rear drive wheel 3, a right side pedal 4a and a left side pedal 4b, a vehicle seat 5, a crankshaft 6 and a driving transmission chain 7 on the right side of the bicycle.

图1中所示自行车处于锻炼型结构状态，车座支承杆8a构成由8a、8b、8c组成的并绕位于自行车框架1上的枢轴基座9旋转的刚性三角形小框架的一部分，支承杆8a和连接杆10相连，然后通过连接杆10与曲轴6相连。踏板4a、4b安装在相互构成同相并和车座5构成异相的曲柄6a、6b上(踏板4a和曲柄6a在图1中看不见，因为它们刚好位于踏板4b和曲轴6b的后面)。其结果是，自行车由作用在踏板4a、4b上的脚蹬力产生的蹬踏冲击推向前方，向下蹬踏板4a、4b引起曲轴6，链条7以及驱动轮3的转动，同时也使车座支承杆8a和车座5向上升，然后车座支承杆8a和车座5在骑车者身体重量的作用下产生的车座冲击向下降，释放出脚蹬踏板的压力，引起曲轴6，驱动传动链7和后轮3的转动，同时也使踏板4a、4b重新上升。用这种方式驱动自行车的过程中，骑车者的身体做上下运动并处于十分费力的动作状态，可使许多不同的肌肉得到锻炼。The bicycle shown in Fig. 1 is in the state of exercising type structure, and the seat support rod 8a constitutes a part of the rigid triangular small frame that is formed by 8a, 8b, 8c and rotates around the pivot base 9 on the bicycle frame 1, the support rod 8a is connected with the connecting rod 10, and then connected with the crankshaft 6 through the connecting rod 10. Pedals 4a, 4b are mounted on cranks 6a, 6b in phase with each other and out of phase with saddle 5 (pedals 4a and crank 6a are not visible in Figure 1 because they are located just behind pedals 4b and crankshaft 6b). As a result, the bicycle is pushed forward by the pedaling impact generated by the pedaling force acting on the pedals 4a, 4b, and the downward pedaling of the pedals 4a, 4b causes the crankshaft 6, the chain 7 and the rotation of the driving wheel 3, and also makes the bicycle The seat support rod 8a and the vehicle seat 5 are upwardly raised, and then the vehicle seat support rod 8a and the vehicle seat 5 are produced under the action of the rider's body weight to descend, releasing the pressure of the pedal, causing the crankshaft 6, Drive transmission chain 7 and the rotation of trailing wheel 3, also make pedal 4a, 4b rise again simultaneously. Propelling a bicycle in this way puts the rider's body up and down in a very strenuous motion that exercises many different muscles.

如图2中所示的常规结构，左侧踏板4b被复位，因而与踏板4a处于异相位置，连接杆10被从车座支承杆8a和位于刚性框架1上的固定装配点11上拆去，并从自行车上取下来。车座支承杆8a直接与固定装配点11相连。为了便于踏板4b复位以及装配和拆卸连接杆10，这些元件通过附加装置安装到自行车上，这种附加装置可通过使用板手或其他简单的手工具很容易地拧紧和放松。这时自行车通过常规方式向前驱动。Conventional structure as shown in Figure 2, the left side pedal 4b is reset and thus out of phase with the pedal 4a, the connecting rod 10 is removed from the seat support rod 8a and the fixed assembly point 11 on the rigid frame 1 , and remove it from the bicycle. The seat support bar 8 a is directly connected to the fixed mounting point 11 . In order to facilitate the resetting of the pedals 4b and the assembly and disassembly of the connecting rod 10, these elements are attached to the bicycle by means of attachments which can be easily tightened and loosened by using a wrench or other simple hand tools. At this point the bicycle is driven forward in the normal way.

使用根据本发明的自行车时，骑车者可根据需要进行短距离或长距离行程，每当在锻炼型结构状态下使用自行车太疲劳时，骑车者可很快地将自行车变成常规结构并继续以更轻松的方式骑行。When using a bicycle according to the invention, the cyclist can make short or long distance trips as desired, and whenever using the bicycle in an exercise-type configuration becomes too tiring, the cyclist can quickly turn the bicycle into a regular configuration and Continue to ride more easily.

根据图3，踏板曲柄6a和踏板4a位于底部停滞中心位置。车座曲柄6c沿轴线A，从车座5到车座曲柄6c的传动装置沿轴线B，轴线A和轴线B之间的夹角使得车座5上的重量传递具有机械上的优势，可确保车座5向下移动，而踏板4a、4b继续转动。According to FIG. 3 , the pedal crank 6a and the pedal 4a are in the bottom stagnant center position. The saddle crank 6c is along the axis A, the transmission from the saddle 5 to the saddle crank 6c is along the axis B, and the angle between the axes A and B makes the weight transmission on the saddle 5 mechanically advantageous, ensuring The seat 5 moves down, while the pedals 4a, 4b continue to rotate.

现在看图1，点划线显示车座5处于底端停滞中心位置和踏板4a、4b的位置。从图中可看出踏板4a、4b刚刚位于顶端停滞中心位置的前面(在图中为说明起见向前的距离被夸大了)。这种安排可使骑车者对踏板施加压力以产生一明确的向前的推力而减少停转的危险。Referring to Fig. 1 now, the dot-dash line shows that the seat 5 is at the center position of the bottom end stagnation and the positions of the pedals 4a, 4b. It can be seen from the figure that the pedals 4a, 4b are just in front of the stagnation center position of the top end (the forward distance is exaggerated in the figure for the purpose of illustration). This arrangement reduces the risk of stalling by allowing the rider to apply pressure to the pedals to produce a definite forward thrust.

根据图4a，踏板曲柄6b和踏板4b位于顶端停滞中心位置。一棘轮杆12可在非接合位置(如图中实线所示)和接合位置(如图中点划线所示)之间枢轴移动。棘轮杆12通过一线圈压缩弹簧13被保持在适当位置，弹簧13的一端有一圆环，骑车者可将其套在专门提供的两个锚杆14a、14b中的一个或另一个上。图4b和4c中盖板15被揭开以显示棘轮16以及棘轮杆12与棘轮接合和非接合的状态。棘轮机构12、13、14、16装在位于曲轴6左端侧的箱体17中。According to Fig. 4a, the pedal crank 6b and the pedal 4b are in the top stagnation center position. A ratchet lever 12 is pivotally movable between a disengaged position (shown in solid lines) and an engaged position (shown in dashed lines). The ratchet lever 12 is held in place by a coil compression spring 13 having a ring at one end which the rider slips over one or the other of two specially provided anchor bars 14a, 14b. In Figures 4b and 4c, the cover plate 15 is uncovered to show the ratchet wheel 16 and ratchet lever 12 engaged and disengaged states with the ratchet wheel. Ratchet mechanism 12,13,14,16 is contained in the box body 17 that is positioned at crankshaft 6 left end sides.

除棘轮机构外，也可使用其他机构以限制踏板只朝一个方向转，例如也可使用离合器装置。在另一种情况下(图中未示)，这种机构不需可分离，因为踏板永远只朝一个方向转动。Instead of a ratchet mechanism, other mechanisms may be used to limit the pedal rotation to one direction only, eg a clutch arrangement may also be used. In another case (not shown), the mechanism need not be detachable, since the pedal will only ever turn in one direction.

上述结构只是作为一个例子加以说明，由权利要求限定属于本发明范围和根据本发明精神的其他许多结构也是可行的。The above structure is illustrated as an example only, and many other structures are possible within the scope of the invention as defined by the claims and according to the spirit of the invention.