JP3087087U - Stand-type bicycle - Google Patents

Abstract

(57) [Problem] To provide a bicycle having a drive mechanism capable of moving forward while rotating wheels by alternately depressing left and right treads while a user is gripping and standing on a steering wheel. SOLUTION: A rotating shaft is provided on a main frame of the bicycle, a crank is connected to both end edges thereof, and a pedal shaft is provided at one end thereof, and fixed to both side surfaces of a rear portion of a support frame for supporting a rear wheel. A roller is inserted into each of the pedal shafts provided at one end of the crank at both ends of the rotating shaft, and a tread plate is laid between the rollers and fixed shafts provided on both sides of the rear portion of the support frame. I do. The tread plate is a plate-like member having a predetermined width in the first half, integrally formed with a shaft support having one end formed with a shaft hole, and fitting the shaft support with a fixed shaft formed on both sides of the support frame. Further, a nut is screwed onto the fixed shaft via a washer so that the tread plate can freely rotate about the fixed shaft as a fulcrum, and the other end is provided such that the bottom surface abuts on the roller.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a bicycle, and more particularly, to a novel stand-type bicycle having a tread plate having a predetermined width, in which a user performs a stepping operation while standing on the tread plate, and moves forward while rotating wheels. Things.

[0002]

[Prior art]

 Conventional bicycles are usually light vehicles and are used for so-called vehicles. In a conventional two-wheeled vehicle, an eccentric wheel is used as a wheel that corresponds to the rear wheel of the bicycle, and a rocking means is provided at one end of a frame that constitutes the vehicle body. Some move forward. Further, in a conventional two-wheeled vehicle, the frame supporting the front and rear two wheels is formed as a plate-like tread plate, and the position of the tread plate is provided so as to be close to the ground, and one foot is put on the tread plate in use. In some cases, one foot touches the ground and moves forward with the power of kicking the ground.

[0003]

[Problems to be solved by the invention]

 The problem of the present invention is a light-duty motorcycle, which is a new type of bicycle other than the conventional method of pedaling, swinging the frame of the body, kicking the ground with one foot, and turning the wheel. Is to provide.

[0004]

[Means for Solving the Problems]

 Therefore, the inventor of the present invention inserted a roller into one end of a crank provided on both sides of a bicycle frame, provided a fixed shaft at the rear end of the frame, and provided one end rotatably on the fixed shaft. The present invention was completed by paying attention to a structure in which a step plate having an end rotatably supporting the roller of the crank was provided.

That is, according to the present invention, a rotary shaft is provided on a main frame, cranks are connected to both end portions of the rotary shaft, and a pedal shaft is provided at one end of the crank, and a rear wheel is provided. A bicycle having fixed shafts provided on both sides of a rear portion of a supporting frame, wherein a roller is inserted into a pedal shaft provided at one end of a crank connected to both ends of the rotating shaft, and the roller is supported by the roller. A tread is straddled between fixed shafts provided on both side surfaces of the rear portion of the frame, and the tread is a plate-shaped member having a predetermined width in the front half, and a shaft support having a shaft hole formed at one end. It is formed integrally, the shaft support is inserted into a fixed shaft formed on both sides of the support frame, and a nut is screwed to the fixed shaft via a washer, so that the tread plate can freely use the fixed shaft as a fulcrum. Provided to rotate, and The end is provided such that the bottom surface is in contact with the roller, and the user alternately steps on the left and right tread plates while applying the thrust to apply thrust, whereby the crank rotates along the circumference and the drive gear And a chain is interlocked with the chain to move forward while rotating the rear wheel.

In the bicycle having the above-described structure, the user can alternately depress the left and right tread plates while holding the steering wheel to move forward while rotating the wheels, which is not available in a conventional light motorcycle. A new drive mechanism is obtained.

Hereinafter, the present invention will be described in detail. A stand-type bicycle according to claim 1, wherein a rotating shaft is provided on the main frame, cranks are connected to both ends of the rotating shaft, and a pedal shaft is provided at one end of the crank, and a rear wheel is provided. A bicycle having fixed shafts provided on both sides of a rear portion of a support frame for supporting the pedals, wherein rollers are inserted into pedal shafts provided at one end of a crank connected to both ends of the rotating shaft, respectively, and A tread is laid between the support shaft and fixed shafts provided on both sides of the support frame. The tread plate is a plate-shaped member having a predetermined width in the first half, and integrally formed with a shaft support portion having a shaft hole formed at one end, and the shaft is formed on a fixed shaft formed on both sides of the support frame. A support is inserted and a nut is screwed onto the fixed shaft via a washer, so that the tread plate is provided so as to freely rotate about the fixed shaft as a fulcrum, and the other end has a bottom surface on the roller. The crank is rotated along the circumference by the user alternately stepping on the left and right treads to provide thrust while standing on the left and right treads, and the drive gear and the chain are interlocked to link the rear wheel. It is configured to advance while rotating.

[0008] In the stand-type bicycle described in claim 2, a guide groove is formed in the bottom surface of the tread plate according to claim 1 along a longitudinal direction, and a roller provided on the pedal shaft contacts the guide groove. And it is comprised so that it may move forward and backward by the up-down movement of a tread.

According to a third aspect of the present invention, there is provided a stand-type bicycle, wherein a suitable pattern for preventing slippage is formed on the upper surface of the tread plate according to the first aspect, or a seal having a nonslip effect is attached. It was worn.

According to a fourth aspect of the present invention, in the stand-type bicycle, the tread plate of the first aspect is formed integrally with a shaft supporting portion having a shaft hole formed at one end thereof, and is fixed to a fixed shaft provided on both sides of the supporting frame. The foot plate is provided so as to freely rotate around the fixed shaft as a fulcrum, and guide frames forming a guide space along the longitudinal direction are provided on the bottom surface of the foot plate, respectively. The roller is housed in a guide space, and the roller moves while rotating in the guide groove.

[0011] In a stand-type bicycle according to a fifth aspect of the present invention, a rotating shaft is provided on the main frame, cranks are connected to both end portions of the rotating shaft, and a pedal shaft is provided at one end of the crank. A bicycle having fixed shafts provided on both sides of a rear portion of a support frame for supporting a rear wheel, wherein rollers are fitted to fixed shafts provided on both sides of the rear portion of the support frame, and provided on the rollers and the crank. A tread is laid between the pedal axle. The tread plate has a shaft support integrally formed at a position near the front end of the bottom surface, and a pedal shaft provided at one end of the crank is directly inserted into the shaft support, and the other end of the tread plate is in a longitudinal direction. When the guide portion forming the sliding space portion is integrally formed, and is fitted into a roller provided on the fixed shaft and the thrust is applied by stepping on the tread plate with a foot, the pedal shaft fitted into the bottom surface of the tread plate is provided. The crank rotates by rotating along the circumference, and the rollers provided on the fixed shafts on both sides of the support frame abut on the slide space of the tread while rotating, and the rear end of the tread swings It is configured to move back and forth while moving.

In the stand-type bicycle according to the sixth aspect, a pivot portion is integrally formed at a position near the front end of the bottom surface of the tread plate in claim 5, and the pedal shaft provided at one end of the crank is directly connected to the pivot portion. At the same time as the fitting, the shaft support is also integrally formed at the rear end of the tread. The support frame has an arm support on its upper surface, a swing arm rotatably provided on the arm support, and a fixed shaft having a roller inserted at one end of the swing arm. And a shaft support formed at a rear end of the swing arm is fitted and fixed to a fixed shaft of the swing arm.

[0013]

[Embodiment of the invention]

 The present invention relates to a novel stand-type bicycle that includes a tread plate having a predetermined width, performs a stepping operation while a user stands on the tread plate, and rotates wheels. A roller is inserted into one end of the provided crank, and a fixed shaft is provided at the rear end of the frame. Further, one end is rotatably provided on the fixed shaft, and the other end is provided with a tread plate which rotatably supports the roller of the crank. In order to clarify the structure and characteristics of such a stand-type bicycle, a specific embodiment will be described below with reference to the drawings.

[0014]

【Example】

 First Embodiment A bicycle according to the present invention is provided with a rotating shaft (13) between a bicycle main frame (11) and a supporting frame (12) as disclosed in FIGS. Cranks (15) and (16) are provided at both ends of the. Pedal shafts (17) and (18) are fitted into one ends of the cranks (15) and (16). In addition, a drive gear (14) is provided at a connection between one of the cranks (15) and the rotating shaft (13). The drive gear (14) is connected to a sprocket (38) provided on a rear wheel (36) via a chain (35). When the pedal shafts (17) and (18) receive thrust, a force is transmitted to the sprocket (38) by the chain (35), and the rear wheel (36) in contact with the ground rotates to advance the bicycle.

The structure of the crank (15) (16) provided on the rotating shaft (13) of the bicycle main frame (11) and the pedal shafts (17) (18) is the same as that of a conventional bicycle. However, when applied to the bicycle according to the present invention, rollers (19) (20) having predetermined diameters and lengths are provided on pedal shafts (17) (18) provided at one end of the cranks (15) (16). The nuts (21) and (22) are screwed into one end of the fitted and threaded pedal shafts (17) and (18) via washers, and the rollers (19) and (20) are turned on the pedal shafts (17) and (18). 18) Do not fall off. The rollers (19) and (20) provided on the pedal shafts (17) and (18) of the cranks (15) and (16) contact the bottom surface of one end of the tread plates (23) and (24).

The treads (23) and (24) are plate-shaped members having a predetermined width in the first half, and have an appropriate pattern on the surface for preventing slipping, or the effect of preventing slipping. An appropriate sticker or the like having a fruit is attached to increase the frictional force when the treads (23) and (24) are stepped on by a foot so that the foot does not slip. Also, a shaft support (27) (28) having a shaft hole (29) (30) formed at one end is integrally formed, and a fixed shaft (25) threaded at one end is formed on the bicycle support frame (12). (26), and the shaft supports (27) and (28) of the tread plates (23) and (24) are inserted into the fixed shafts (25) and (26) of the support frame (12), and the nut ( 31) and (32) are screwed to the fixed shafts (25) and (26). For this reason, the tread plates (23) and (24) are provided between the rollers (19) and (20) provided on the pedal shafts (17) and (18) and the fixed shafts (25) and (26), respectively. 25) is provided so as to be rotatable relative to 25). Further, the nuts (31) and (32) are not detached from the fixed shafts (25) and (26) by screwing.

Further, guide grooves (33) and (34) are formed on the bottom surfaces of the treads (23) and (24) along the longitudinal direction. Rollers (19) and (20) provided on the pedal shafts (17) and (18) come into contact with the guide grooves (33) and (34), and move back and forth by the vertical movement of the tread plates (23) and (24). Therefore, the length of the rollers (19) and (20) is set according to the width of the guide grooves (33) and (34).

As described above, the shaft supports (27) and (28) are formed at one end of the treads (23) and (24), and are fitted to the fixed shafts (25) and (26) provided on both sides of the support frame (12). When they are inserted, the washers and the nuts (31) and (32) are screwed together to restrict the treads (23) and (24) from coming off the support frame (12). Therefore, when the treads (23) and (24) are stepped on and receive a thrust, the rollers (19) and (20) provided at one end of the cranks (15) and (16) rotate along the circumference, and the treads (23) and (20) rotate. ) And (24) alternately swing up and down with the fixed shafts (25) and (26) as fulcrums. Further, rollers (19) and (20) abut in guide grooves (33) and (34) formed on the bottom surfaces of the tread plates (23) and (24), and rollers (19) and (20) are moved along the guide grooves (33) and (34). Since the steps (19) and (20) move back and forth, when the treads (23) and (24) move, it is possible to prevent the occurrence of an operation that is displaced in the left-right direction. Further, the rollers (19) and (20) are provided rotatably with respect to the pedal shafts (17) and (18) and abut against the treads (23) and (24). (19) Friction between (20) and (20) can be reduced to achieve smooth movement.

The pedals (23) (24) are connected to cranks (15) (16) provided on both sides of the main frame (11) via pedal shafts (17) (18) and rollers (19) (20). The bottom surface of abuts. Therefore, when one of the treads located above is stepped on with a foot to give a thrust, the rollers (19) and (20) themselves move in the slide space at the bottom of the tread while rotating, and the rollers (19) and (20) are moved. The fitted pedal shaft moves forward and makes a rotational movement along the circumference to rotate the drive gear (14). For this reason, the chain (35) and the sprocket (38) are linked to rotate the rear wheel (36).

The structures of the cranks (15) and (16) provided on both sides of the main frame (11) and the tread plates (23) and (24) provided rotatably on both sides of the support frame (12) are shown in FIG. As disclosed in FIG. 4, the support portions (27) and (28) having shaft holes (29) and (30) formed at one end of the tread plates (23) and (24) are integrally formed. The shaft supports (27) and (28) are inserted into the fixed shafts (25) and (26) provided on both sides of the 12), and the foot plates (23) and (24) are fixed with the fixed shafts (25) and (26) as fulcrums. Provided to rotate freely. Rollers (19) and (20) provided on the cranks (15) and (16) via pedal shafts (17) and (18) are provided with slide grooves (33) and (34) on the bottom surface of the foot plates (23) and (24). ), And when the foot plates (23) and (24) are stepped on and receive a thrust, the rollers (19) and (20) rotate along the circumference and the cranks (16) and (16) rotate.

Second Embodiment FIG. 5 discloses a second embodiment. In the second embodiment, the connection between the foot plates (23) and (24) and the support frame (12) is the same as in the first embodiment, with fixed shafts (25) and (26) on both sides of the support frame (12). Further, shaft supports (27) and (28) having shaft holes (29) and (30) formed at one end of the tread plates (23) and (24) are integrally formed and provided on both sides of the support frame (12). The shaft supports (27) and (28) are inserted into the fixed shafts (25) and (26) so that the foot plates (23) and (24) can freely rotate around the fixed shafts (25) and (26) as fulcrums. Provide. The pedal shafts (17) and (18) and the rollers (19) and (20) provided at one end of the cranks (15) and (16) have the same structure as in the first embodiment. However, the relationship between the treads (23 ') and (24') and the rollers (19) and (20) is different from the first embodiment. That is, guide frames (39) forming guide spaces (37) are provided on the bottom surfaces of the treads (23 ') and (24') along the longitudinal direction. The rollers (19) and (20) move while rotating in the guide space (37). Accordingly, the front ends of the treads (23 ') (24') have moved upward. Movement away from the rollers (19) and (20) is restricted by the guide frame (39).

Third Embodiment FIG. 6 discloses a third embodiment. According to the drawings, the treads (23 ") and (24") in the third embodiment are formed integrally with the pivots (40) and (41) at positions near the front end of the bottom surface to form the cranks (15) and (16). ) Is directly inserted into the shaft supports (40) and (41), and the washer and the nut (21) are screwed. The other end of the treads (23 ") (24") integrally forms a guide portion (44) forming a longitudinal slide space (45). Further, rollers (42) and (43) are inserted into the fixed shafts (25) and (26), and guide portions (44) of the tread plates (23 ") (24") are inserted into the fixed shafts (25) and (24)). (32) is screwed.

In the third embodiment, when the treads (23 ″) and (24 ″) are depressed with a foot to give thrust, the shaft supports (40) (40) ( The pedal shafts (17) and (18) inserted into 41) rotate along the circumference to rotate the cranks (15) and (16). In this case, the rollers (42) and (43) provided on the fixed shafts (25) and (26) on both sides of the support frame (12) rotate and slide into the slide space (45) of the tread plates (23 ") (24"). The rear ends of the treads (23 ") (24") abut and move back and forth while swinging. Also in the third embodiment, it is possible to limit the movement of the front ends of the treads (23 ') (24') to move upward and separate from the cranks (15) (16).

Fourth Embodiment FIG. 7 discloses a fourth embodiment. According to the drawing, the treads (23 '' ') (24' '') in the third embodiment are formed by integrally forming the shaft supports (40) (41) at a position near the front end of the bottom surface, and (15) The pedal shafts (17) and (18) provided at one end of (16) are directly inserted into the shaft supports (40) and (41), and the washers and nuts (21) are screwed. The other ends of the treads (23 ") (24") are also integrally formed with the shaft supports (27) and (28), and the fixed shafts (23) and (24) into which the rollers (42) and (43) are inserted are inserted. Screw the washer and nut (31). However, the fixed shafts (23) and (24) are fixed to one ends of the swing arms (47) and (48). That is, an arm support (46) is provided on the upper surface of the support frame (12), and the swing arms (47) and (48) are rotatably provided on the arm support (46).

In the fourth embodiment, when the treads (23 ″) and (24 ″) are depressed with a foot to give a thrust, the shaft supports directly on the bottom surfaces of the treads (23 ′ ″) and (24 ′ ″). (40) The pedal shafts (17) and (18) inserted into (41) rotate along the circumference to rotate the cranks (15) and (16). In this case, the rear ends of the treads (23 "") (24 "") move back and forth while swinging by the action of the rollers (42) (42) and the swing arms (47) (48). I do. Also in the fourth embodiment, the front end of the treads (23 ') (24') can be moved upward to limit the operation of separating the cranks (15) and (16).

The above is a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, any modifications or changes that can be made by those skilled in the art and that have an equivalent effect on the present invention belong to the scope of the present invention.

[0027]

[Effect of the invention]

 According to the present invention, the user can alternately depress the left and right treads while holding the steering wheel to move forward while rotating the wheels, which is a novel drive mechanism not found in conventional light-duty motorcycles. Is obtained.

[Brief description of the drawings]

FIG. 1 is a side view of a stand-type bicycle according to the present invention.

FIG. 2 is a plan view of the stand-type bicycle disclosed in FIG.

FIG. 3 is a partially enlarged view showing the structure of the tread of the stand-type bicycle disclosed in FIG. 1;

FIG. 4 is a partial exploded view showing the structure of the tread disclosed in FIG. 4;

FIG. 5 is a partially enlarged view showing a structure of a tread in the second embodiment.

FIG. 6 is a partially enlarged view showing a structure of a tread according to a third embodiment.

FIG. 7 is a partially enlarged view showing the structure of a tread according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main frame 12 Support frame 13 Rotating shaft 14 Drive gear 15 Crank 16 Crank 17 Pedal shaft 18 Pedal shaft 19 Roller 20 Roller 21 Nut 22 Nut 23 Tread plate 24 Tread plate 25 Fixed shaft 26 Fixed shaft 27 Shaft support 28 Shaft support 29 Shaft hole 30 Shaft hole 31 Nut 32 Nut 33 Guide groove 34 Guide groove 35 Chain 36 Rear wheel 37 Guide space 38 Sprocket 39 Guide frame 40 Shaft support 41 Shaft support 42 Roller 43 Roller 44 Guide 45 Slide space 46 Arm support 47 Swing Arm 48 Swing arm

Claims (6)

[Utility model registration claims] 1. A rotary shaft is provided on a main frame, a crank is connected to both end portions of the rotary shaft, and a pedal shaft is provided at one end of the crank, and a rear portion of a support frame for supporting a rear wheel is provided. A bicycle provided with fixed shafts on both sides thereof, wherein rollers are respectively inserted into pedal shafts provided at one end of a crank connected to both end portions of the rotating shaft, and both sides of the rollers and a rear portion of the support frame are fitted to the rollers. A tread plate is straddled between the fixed shaft and the tread plate, and the tread plate is a plate-shaped member having a predetermined width in the first half, and integrally formed with a shaft support having a shaft hole at one end. The support portion is inserted into a fixed shaft formed on both sides of the support frame, and a nut is screwed onto the fixed shaft via a washer, so that the tread plate is freely rotated about the fixed shaft as a fulcrum. , And the other end has a bottom surface abutting on the roller When the user stands on the left and right treads and alternately steps on the treads to apply thrust, the crank rotates along the circumference, and the drive gear and the chain interlock to rotate the rear wheels. A stand-type bicycle characterized in that it is configured to move forward while moving. 2. A guide groove is formed in the bottom surface of the tread plate along the longitudinal direction, and a roller provided on the pedal shaft abuts in the guide groove and moves back and forth by up and down movement of the tread plate. The stand-type bicycle according to claim 1, wherein the bicycle is used. 3. The stand according to claim 1, wherein an appropriate pattern for preventing slippage is formed on an upper surface of the tread plate, or a sticker having an effect of preventing slippage is attached. Expression bicycle. 4. The step board is formed integrally with a shaft support portion having a shaft hole formed at one end, and the shaft support portion is inserted into fixed shafts provided on both sides of the support frame, and the stepping is performed with the fixed shaft as a fulcrum. The plate is provided so as to freely rotate, and a guide frame is formed on the bottom surface of the tread plate to form a guide space along the longitudinal direction, and the rollers are stored in a storage guide. The stand-type bicycle according to claim 1, wherein the bicycle is configured to move while rotating in the space. 5. A rotary shaft is provided on a main frame, a crank is connected to both ends of the rotary shaft, and a pedal shaft is provided at one end of the crank, and a rear portion of a support frame for supporting a rear wheel is provided. A bicycle provided with fixed shafts on both side surfaces, wherein a roller is fitted on fixed shafts provided on both side surfaces of a rear portion of the support frame, and a tread plate is straddled between the rollers and a pedal shaft provided on the crank. The pedal is formed integrally with a shaft support at a position near the front end of the bottom surface, and a pedal shaft provided at one end of the crank is directly inserted into the shaft support, and the other end of the tread is elongated. A guide portion forming a sliding space portion in the direction is integrally formed, and is fitted into a roller provided on the fixed shaft. When a thrust is applied by depressing the tread plate with a foot, a pedal shaft fitted into the bottom surface of the tread plate is formed. Rotate along the circumference to rotate the crank And a roller provided on a fixed shaft on both sides of the support frame abuts on the slide space of the tread while rotating, and the rear end of the tread moves forward and backward while swinging. And a stand-type bicycle. 6. The tread plate has a shaft support integrally formed at a position near a front end of a bottom surface, and a pedal shaft provided at one end of a crank is directly inserted into the shaft support, and a rear end of the tread plate is provided. The support frame has an arm support on the upper surface, a swing arm is rotatably provided on the arm support, and a roller is inserted into one end of the swing arm. 6. The stand-type bicycle according to claim 5, wherein a fixed shaft is provided, and a shaft support formed at a rear end of the tread plate is fitted and fixed to the fixed shaft of the swing arm.