JP3149939U - Bicycle with passenger - Google Patents

Abstract

Provided is a bicycle equipped with a passenger car that can be easily attached and detached easily and can be driven safely and stably when the passenger car is attached. Moreover, the bicycle with a passenger car which the passenger car separated from the bicycle main body has the function as a baby carriage and a cart is provided. A pair of left and right load carrier main members, which are substantially parallel to each other, are interconnected by a horizontal member to form a load carrier of a bicycle main body 100. A fitting pipe that is externally fitted and fixed to the main material is provided. The bicycle main body 100 can be expanded and contracted in the front-rear direction. When the bicycle main body 100 and the passenger car 200 are connected, the axles of the rear wheel 108b and the passenger rear wheel 238 are disposed at substantially equal positions in the front-rear direction. A hook that can lock the annular portion protrudes below the fitting pipe, and the basket 301 can be suspended and attached to the passenger car 200 separated from the bicycle main body 100. [Selection] Figure 1

Description

  The present invention relates to a bicycle with a passenger car.

  Bicycles with passenger cars and passenger cars that can be attached to the bicycles are in circulation, and are mainly used to carry infants and children. Most of them have only a use as a passenger car, but a passenger car that can be used as a stroller separately from a bicycle body is disclosed (for example, see Patent Document 1).

  Moreover, the cart apparatus which can be attached or detached with respect to a bicycle main body is disclosed (for example, refer patent document 2).

JP 2004-306925 A JP 2006-240390 A

  However, the passenger car described in Patent Document 1 has a structure that is supported only by the front and rear wheels of the bicycle body, even though the portion protruding left and right is large when attached to the bicycle body. Lack of sex and dangerous. In addition, a baby stroller is mounted on the rear wheel of the bicycle main body, and a passenger rides on the baby stroller. The center of gravity is excessively biased rearward and lacks stability, which is dangerous. In addition, it is necessary to lift and install the stroller, which requires an excessive amount of labor and is dangerous.

  Further, the technology described in Patent Document 1 and Patent Document 2 is a passenger car that exhibits a function of a baby carriage or a cart (wheelbarrow) as a single unit when separated from a bicycle body, and has both functions of a baby carriage and a cart. A passenger car that exhibits is not disclosed yet.

  In view of the above-described problems, the present invention provides a bicycle equipped with a passenger car that can be easily and safely operated when the passenger car that can be used as a single unit can be easily attached and detached, and that the passenger car is attached. Is an issue. It is another object of the present invention to provide a bicycle with a passenger car that has a function as a baby carriage and a cart.

The first device for solving the above problem is:
A passenger car having a pair of front and rear fitting pipes, each having an axial guide groove communicating with the opening at the front end and facing each other, which can be used alone as a four-wheeled baby carriage,
A bicycle main body comprising a pair of left and right cargo bed main members that are substantially parallel to each other and interconnected by horizontal members provided at substantially the same height as the guide grooves,
The rear wheel of the bicycle body and the axle of the rear wheel of the bicycle body are arranged at approximately the same position in the front-rear direction when the passenger is connected to the bicycle body by inserting and fixing the fitting pipe to the main body of the loading platform. It is a bicycle with a passenger car configured as described above.

The second idea is
A seat stay and a chain stay are formed by a plurality of pipes that are slidably fitted and connected to each other, and in which two semi-cylindrical members facing each other are in contact with each other and fastened by a hose band. And
Both ends of the seat stay are rotatably connected to a seat post and a rear axle.
At least a part of the horizontal member is supported by the front support bar connected to the semi-cylindrical member abutted on the chain stay from above and the rear support bar connected to the axle of the rear wheel,
and,
The bicycle with a passenger car according to the first aspect of the present invention is provided with an intermediate gear that is urged so as to come into pressure contact with the chain regardless of the length of the bicycle body, and that is engaged with the chain.

The third idea is
The saddle is composed of a central saddle at the center of the left and right, and a pair of left and right side saddles that are connected by a connecting plate in the vicinity of the front end and pivotally supported by the connecting plate.
A first arc-shaped member and a second arc-shaped member are formed at the lower portion of the center saddle, a third arc-shaped member is disposed at the rear end of the center saddle, and a fourth arc-shaped member and a fifth circle are disposed at the lower portion of the side saddle. Arc-shaped members are all provided with the inner circumference facing forward,
The fourth arcuate member is brought into contact with the upper surface of the first arcuate member, and an adjustment bolt inserted through a sliding hole formed in the first arcuate member is screwed into the fourth arcuate member. ,
The lower surface of the fifth arcuate member, which is chopped, is erected on the second arcuate member and can be engaged with the engaging portion whose upper end surface is chopped,
and,
The bicycle with an equip- ment according to the first or second invention is formed by screwing an adjusting bolt inserted into a sliding hole formed in the third arcuate member at the rear end of the side saddle.

The fourth idea is
The first through third pivots are provided so that the saddle nose can be pivoted up and down by tightly fitting a shaft through-hole drilled in the vicinity of the rear end of the saddle nose to a pivoting shaft that extends horizontally above the connecting plate. A bicycle with a passenger vehicle according to any of the above ideas.

The fifth idea is
A both-leg stand having a cylindrical member with both ends opened to be broadened downwardly and substantially flat at both ends, a shaft rotatably fitted in the cylindrical member, and a leg connected to the shaft. Is provided below the down tube,
The vicinity of the connecting portion with the leg shaft is formed in a substantially flat plate shape and a shaft through hole is formed,
A shaft is loosely fitted in the shaft through hole, and a leg is pivotally fixed to the shaft by a pin provided so as to be orthogonal to the shaft through hole,
The outer end is fixed to the end of the shaft and the leg is urged inward by a compression spring wound around the shaft,
and,
The passenger car according to any one of the first to fourth aspects, wherein an engaging protrusion for engaging with an engaging recess provided at an opening edge of the cylindrical member and fixing the leg at a predetermined angle is provided on the leg. It is a bicycle with.

The sixth idea is
A handle center member provided at both ends with a lower screw fitting portion having a substantially hemispherical recess opening upward, a gripping member provided at the end with a spherical portion inserted into the lower screw fitting portion, and the lower screw fitting portion and screw An upper threaded portion having a gripping member through-hole through which the gripping member is inserted,
The bicycle with a passenger car according to any one of the first to fifth aspects, comprising a handle that allows a gripping member to be fixed at an arbitrary angle by screwing an upper screw fitting portion and a lower screw fitting portion.

The seventh idea is
A front wheel support leg having an upper end connected to the fitting pipe and a front wheel support wheel pivotally supported at the lower end is composed of an upper support leg and a lower support leg.
The front wheel support leg can be folded by connecting the bosses provided at the lower end of the upper part of the support leg and the upper end of the lower part of the support leg to each other so as to be rotatable.
A clip that clamps the lower part of the support leg when the front wheel support leg is folded is fixed to the upper part of the support leg,
A passenger vehicle according to any one of the first to sixth aspects, wherein a stopper that abuts on the lower part of the support leg and restricts the rotation of the lower part of the support leg is projected at a position below and behind the boss part of the upper part of the support leg. It is a bicycle with.

The eighth idea is
The rear wheel of the passenger car extends forward from the axle of the rear wheel of the passenger car and is connected to the boss on the upper part of the support leg, and extends upward from the axle of the rear wheel of the passenger car, and the upper end is fitted. It is pivotally fixed to the rear wheel support leg connected to the joint pipe,
The lower frame pipe is connected to a boss part at the upper part of the support leg, a lower frame pipe front part, a lower frame pipe rear part rotatably connected to the lower frame pipe front part, and a lower frame pipe front part and a lower frame A torsion coil spring connected to the rear part of the pipe and returning the lower frame pipe rear part to an angle substantially parallel to the lower frame pipe front part against an external force;
The rear wheel support leg includes a rear wheel support leg upper part connected to a fitting pipe, a rear wheel support leg lower part slidably fitted to the rear wheel support leg upper part, and a rear wheel support leg upper part and a rear wheel. The bicycle with a passenger car according to a seventh aspect of the present invention includes a coil spring connected to a lower portion of the support leg and having a coil spring that returns the rear wheel support leg to a predetermined length against an external force.

The ninth idea is
A bicycle equipped with a passenger according to the seventh or eighth invention, characterized in that a substantially U-shaped hand handle is bolted to the upper part of the left and right rear wheel support legs in the vicinity of both ends so as to be rotatable. It is.

The tenth device is
A pedestal supported by a pedestal support bar erected on the down tube and disposed above the connecting portion with the handle central member of the front fork, a hook projecting below the fitting pipe, and the pedestal With a basket that can be placed on
Near any of the upper ends of the basket, any one of the first to ninth devices may be provided with an annular portion capable of hanging the basket on the passenger car separated from the bicycle body by being locked to the hook. This is a bicycle with a passenger car.

  According to the first device, the bicycle main body and the passenger car can be easily and stably connected only by externally inserting and fixing the fitting pipe to the main carrier material. Since the height positions of the guide groove and the horizontal member drilled in the fitting pipe, and the fitting pipe and the loading platform main material are substantially the same, the front wheel and the rear wheel of the passenger car are kept on the ground. The fitting pipe can be externally inserted into the main carrier by simply pressing the passenger with the hand. When removing the passenger car, it is only necessary to release the fixing of the fitting pipe and the main carrier and to pull the passenger car backward, and it is possible to safely start using it as a baby carriage while carrying the passenger.

  Since the bicycle body and the passenger car are firmly connected, and the rear wheel of the passenger car functions as an auxiliary wheel, it is avoided that the bicycle body and the passenger car are swung from side to side in a state where the bicycle body and the passenger car are connected. In addition, since the rear wheel of the bicycle body and the rear wheel of the passenger car are arranged at substantially the same position in the front-rear direction, the center of gravity position is located between the front wheel and the rear wheel of the bicycle body, and the driver and passengers can drive safely. Is possible.

  If the bicycle main body and the passenger car are separated, the passenger car can be used as a baby carriage and the bicycle main body can be used as a normal single-seat bicycle. At this time, the main carrier and the horizontal member exhibit a function as a cargo bed.

  According to the second device, the vehicle length of the bicycle main body can be adjusted while maintaining the relative position between the rear wheel of the bicycle main body and the passenger car, and the center of gravity is adjusted to the front wheel of the bicycle main body even if the vehicle length is adjusted. Maintained and stable between rear wheels. When the passenger car is separated, the vehicle length of the bicycle body can be shortened to make it easier to drive as a single-seater bicycle.

  According to the third device, the width of the saddle can be adjusted while maintaining the robustness of the saddle. By adjusting the width to be suitable for the driver's body, it is possible to maintain a posture in which the driver can easily drive. In addition, when a passenger is mounted with a passenger mounted, the mass of the present invention on which the driver and the passenger are carried increases, and a relatively large braking force is required, but the saddle width is widened and the saddle is in contact with the driver. By increasing the area, the driver can be prevented from falling off the saddle, and safer driving is possible.

  According to the fourth device, the saddle nose is directed upward, so that the driver can be prevented from falling off the saddle during braking. The effect is particularly great when the passenger is on board and needs a large braking force. In the case of a hindrance to driving, the angle of the saddle nose may be reduced, and comfortable driving is possible by directing the saddle nose to a desired angle.

  According to the fifth device, when the legs are rotated downward, both legs are opened, and the both leg stands exhibit their functions. The two-leg stand supported at two points can be stopped more stably than a general one-leg stand, and the effect is particularly great in a state where the weight is increased by mounting the passenger car. On the other hand, when the legs are rotated upward, the width between the legs is narrowed and does not hinder driving.

  According to the sixth device, the left and right handles can be independently adjusted to arbitrary angles of front and rear and left and right. The present invention is different in mass and center of gravity position between the case where the passenger car is attached and the case where it is separated, and the posture suitable for driving is also different, but the width and angle of the handle can be set arbitrarily, so regardless of the presence or absence of the passenger car An optimal driving posture can be maintained, and driver fatigue can be reduced.

  According to the seventh aspect, the front wheel support leg can be maintained in the folded state when the passenger car is connected to the bicycle body, and the front wheel support leg can be prevented from hindering driving. When the passenger car is separated from the bicycle body and used as a baby carriage, it is only necessary to rotate the lower part of the front wheel support leg downward, and the lower part of the front wheel support leg is stably fixed by the stopper, so that it can withstand the weight of the passenger. Exhibits robustness.

  According to the eighth aspect, since vibration is prevented from being transmitted to the passenger from the rear wheel of the passenger, even when traveling on a bad road, the passenger's riding comfort is not impaired.

  According to the ninth aspect, the hand handle can be fixed at an arbitrary angle. When the passenger car is separated from the bicycle body and used as a baby carriage, the baby carriage can be operated by grasping a push handle directed upward. On the other hand, when connecting with the bicycle body, the hand handle handles the function of protecting the rear wheel of the bicycle body by rotating the hand handle downward. In this case, it is avoided that the rear wheel of the bicycle body comes into contact with foreign matter, which contributes to safe traveling.

  According to the tenth device, the passenger can be used as a cart separated from the bicycle body by engaging the annular portion with the hook of the fitting pipe and suspending the basket. Can be carried in. Since the basket can also be placed on a pedestal provided on the bicycle body, the basket is mounted on the pedestal when the passenger car is separated from the bicycle body and used as a baby carriage and cart, and then when the passenger car is connected to the bicycle body. This is convenient for carrying luggage.

  Since the pedestal is supported by a pedestal support bar erected on the down tube, the gravity of the articles in the basket is applied to the down tube and not applied to the handle. Therefore, even if an article having a large weight is loaded, the gravity of the article does not hinder the handle operation, and a light handle operation is possible.

1 is an overall perspective view showing an embodiment of the present invention. It is a side view which shows a bicycle body typically. The stretched state is indicated by a two-dot chain line. It is drawing which shows the rear part vicinity of a bicycle main body, (a) is a principal part side view, (b) is the sectional view on the AA line of (a). It is a top view of a loading platform. It is a perspective view of the passenger car. However, to facilitate understanding, sheets, capsule cases, etc. are omitted. It is a rear view of the passenger car which opens and shows a capsule case. It is drawing which shows a passenger car, (a) is a side view which cuts and opens a part of capsule case, (b) is a principal part perspective view which shows the pivot vicinity. It is a principal part perspective view which shows the passenger | crew rear wheel vicinity. It is drawing which shows a saddle, (a) is a bottom view which shows the folded state, (b) is a bottom view which shows the state expanded. It is drawing which shows the saddle vicinity, (a) is principal part side sectional drawing, (b) is BB sectional drawing of (a). It is a principal part perspective view which shows the supporting member vicinity of a saddle. FIG. 6 is a perspective view of the vicinity of a handle in which a basket is omitted. It is drawing which shows the both leg stand vicinity, (a) is a partially exploded front view, (b) is a side view.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated in detail, referring drawings. Note that the present invention is not limited to this.

  The bicycle with a rider of the present invention has a pair of front and rear fitting pipes 210 and 210 in which axial guide grooves 211 and 211 communicating with the opening at the front end and facing each other are formed. A passenger car 200 that can be used as a wheeled baby carriage, and a pair of left and right load carrier main materials 141 and 141 that are substantially parallel to each other, are provided with horizontal members 142,. And the bicycle body 100 which is connected to each other to form the loading platform 140.

  By inserting and fixing the fitting pipes 210 and 210 to the main carrier materials 141 and 141 and fixing them, the passenger car 200 can be connected to the bicycle main body 100, and when connected, the rear wheel 108b of the bicycle main body 100 is connected. And the axles of the passenger rear wheels 238, 238 are arranged at substantially the same position in the front-rear direction.

  Each of the chain stays 103 and 103 of the bicycle main body 100 includes a plurality of pipes that are slidably connected to each other. A first semi-cylindrical member 104a is abutted from above and a second semi-cylindrical member 104b is abutted from below, and the semi-cylindrical members 104a and 104b are connected to the pipe connecting portion. By tightly connecting the metal hose bands 105,..., The connection between the pipes is strong. In FIG. 3 (a), the chain stays 103, 103 are described as two interconnected pipes, but the number of pipes is not necessarily limited, and three or more pipes may be connected. good. When three or more pipes are connected, only one portion is connected by the first semi-cylindrical member 104a and the second semi-cylindrical member 104b, and the other connecting portions are two second semi-cylindrical members 104b. Are connected using

  The first semi-cylindrical member 104a is a substantially semi-cylindrical member, and a cylindrical portion 104c is erected in the vicinity of the front / rear center in the outer periphery, and the front support bar 144 of the loading platform 140 is detachable. Is inserted. Although configured as described above in FIGS. 1 to 3, the first semi-cylindrical member 104 a may be manufactured integrally with the front support bar 144 of the loading platform 140.

  The second semi-cylindrical member 104b is a substantially semi-cylindrical member. The inner periphery has substantially the same curvature as the inner periphery of the first semi-cylindrical member 104 a and the outer periphery of the chain stay 103.

  The hose band 105,... Is a metal band having a main portion formed in a band shape, and the strength of the tightening force can be adjusted by tightening a screw provided on the outer periphery. The shape of the hose band 105 is not necessarily limited to a belt shape as long as the first semi-cylindrical member 104a and the second semi-cylindrical member 104b can be fastened. For example, the wire is wound once or twice or more times It may be a shape.

  Each of the seat stays 101 and 101 includes a plurality of pipes that are slidably connected to each other. Second semi-cylindrical members 104b and 104b are in contact with the connecting portion of the pipe from above and below, and the second semi-cylindrical members 104b and 104b are fastened by a plurality of metal hose bands 105,. By doing so, the connection between the pipes is made strong. In FIG. 3A, the sheet stays 101 and 101 are described as two interconnected pipes, but the number of pipes is not necessarily limited, and three or more pipes may be connected. good.

  The upper end of the seat stay 101 is pivotably connected to the seat tube 107 and the lower end of the seat stay 101 is rotatably pivotally connected to the axle of the rear wheel 108b of the bicycle body 100. Yes.

  The chain 109 of the bicycle body 100 is spanned between the drive sprocket 109a and the rear sprocket 109b,..., And an intermediate portion thereof is meshed with an intermediate gear 109c that is pivotally attached to an arm (not shown). Yes. The base end of the arm is pivotally supported by the chain guard 109d so as to be swingable, and is urged by a spring or the like so as to press the intermediate gear 109c against the chain 109. The chain 109 has a function of applying tension.

  The loading platform 140 includes loading platform main members 141 and 141 that extend rearward of the bicycle main body 100 and are substantially parallel to each other, and a plurality of horizontal members 142 that interconnect the loading platform main materials 141 and 141. . In the figure, the main carrier materials 141 and 141 are shown as round pipes, but the shape is not particularly limited as long as the fitting pipe can be externally inserted, and for example, a cross section having an arbitrary shape such as a circle, an ellipse, or a polygon A pipe or bar having Further, the number of the horizontal members 142,... Is not particularly limited. For example, only one horizontal member 142 formed in a plate shape long in the front-rear direction may be provided, or an arbitrary number of two or more The horizontal members 142,... May be provided.

  In the vicinity of the front ends of the main carrier materials 141 and 141, extendable carrier connection members 143 and 143 are bolted so as to be rotatable, and the front ends of the carrier connection members 143 and 143 rotate around the seat stays 101 and 101, respectively. It is bolted to allow movement. The upper ends of the front support bars 144 and 144 are connected to the lower surface of the horizontal member 142 in front of the loading platform 140. Further, the upper ends of the rear support bars 145 and 145 are connected to the lower surface of the horizontal member 142 behind the loading platform 140. As described above, the cargo bed 140 is supported by the front support bars 144 and 144, the rear support bars 145 and 145, and the bed connection members 143 and 143.

  Each of the carrier connection members 143 and 143 includes a plurality of pipes that are slidably connected to each other, and can be expanded and contracted by sliding the pipes. The connecting portion is provided with a lock nut 143a, and the loading platform connecting member 143 can be adjusted to a predetermined length. The mechanism for adjusting the lengths of the carrier connection members 143 and 143 is not necessarily limited to the lock nut 143a, and is, for example, the second semi-cylindrical members 104b and 104b and the hose band 105,. Also good. The loading platform connecting member 143 is not necessarily configured by two pipes, and may be configured by three or more pipes.

  As shown in FIG. 2, the bicycle body 100 configured as described above can expand and contract in the front-rear direction. When the bicycle main body 100 is expanded or contracted, first, the hose bands 105,... Are loosened to make the chain stays 103, 103 and the seat stays 101, 101 expandable, and the screwing with the seat tube 107 is loosened. The seat stays 101 and 101 are set in a rotatable state. Further, the screw connection of the load carrier connecting members 143 and 143 with the load carrier main members 141 and 141 and the seat stays 101 and 101 is loosened, and the lock nut 143a is loosened. Next, by adjusting the length of the chain stays 103, 103, the length and angle of the seat stays 101, 101, and the length and angle of the cargo bed connecting members 143, 143, the axle of the rear wheel 108b is arranged at a desired position. . After that, the hose bands 105,... Are fastened, the seat stays 101, 101 are firmly screwed into the seat tube 107, the lock nut 143a is tightened, and the load carrier connection members 143, 143 are connected to the seat stays 101, 101 and the main carrier 141. , 141 is screwed tightly. Since the chain 109 is tensioned by the biased intermediate gear 109c as described above, the chain 109 does not hinder the change of the vehicle length of the bicycle main body 100, and the crankshaft is moved from the crankshaft to the rear wheel regardless of the vehicle length. Demonstrate the ability to transmit driving force.

  As shown in FIG. 5 to FIG. 8, the passenger car 200 has substantially the same height position as the pair of left and right passenger front wheels 239 and 239, the pair of left and right passenger rear wheels 238 and 238, and the loading platform main members 141 and 141. A pair of front and rear fitting pipes 210, 210 provided on the base plate, a base 220 horizontally mounted on the fitting pipes 210, 210, and one or two placed on the base 220 The passenger seats 231,... And the capsule case 234 mounted and fixed on the base 220 are provided.

  The passenger front wheels 239 and 239 are pivotally attached to the lower ends of the front wheel support legs 237 and 237, respectively, so as to be rotatable. The front wheel support leg 237 is divided into an upper support leg upper part 237a and a lower support leg lower part 237b, and a boss formed in a substantially circular shape with a substantially equal diameter at the lower end of the support leg upper part 237a and the upper end of the support leg lower part 237b. The portions 237c and 237d are formed, and are overlapped with each other with the boss portion 237d at the upper end of the support leg lower portion 237b facing outside. The upper support leg 237a is longer than the lower support leg 237b.

  The support leg lower portion 237b is rotatable about a pivot 237e. On the other hand, the upper end of the support leg upper part 237a is connected and fixed to the fitting pipe 210. At a position below and behind the boss portion 237c, a stopper 237f that protrudes from the support leg lower portion 237b and restricts the rotation of the support leg lower portion 237b is provided. Further, a clip 237g capable of sandwiching the support leg lower portion 237b is fixed to an intermediate portion of the support leg upper portion 237a.

  Engagement pieces 237h and 237h each having a substantially semi-cylindrical shape with a bottom only at the outer end are welded to the corresponding positions of the lower support leg portions 237b and 237b. The engagement pieces 237h and 237h are configured such that the outer peripheral surface faces downward with the stopper 237f locked to the support leg lower portion 237b so that the substantially cylindrical connecting rod 204 can be placed. By mounting and engaging the connecting rod 204 on the left and right engaging pieces 237h and 237h, the width between the front wheel support legs 237 and 237 connected to each other is prevented from becoming a predetermined length or less. . When the passenger car 200 is separated from the bicycle body 100 and used as a baby carriage, even if a load is applied due to gravity applied to the passenger, the front wheel support legs 237 and 237 are not bent, and the strength of the passenger car 200 is maintained. .

  According to the present invention configured as described above, the support leg lower portion 237b can be rotated toward the rear passenger wheel 238 until it comes into contact with the stopper 237f, and further rotation is restricted. In a state where the stopper 237f is locked to the support leg lower portion 237b, the gravity of the passenger 200 and the passenger riding on the rider 200 acts in a direction to press the stopper 237f against the support leg lower portion 237b and stabilizes the lock. Therefore, the front wheel support leg 237 stably supports the passenger car 200. On the other hand, the support leg lower part 237b can be freely rotated in the reverse direction. When the support leg lower part 237b is clamped by the clip 237g with the support leg lower part 237b facing upward, the connection with the bicycle body 100 and the operation of the connected bicycle with a passenger car are performed. It will not be a hindrance.

  The passenger rear wheels 238 and 238 are pivotally fixed to the lower ends of the rear wheel support legs 202 and 202, respectively. Further, the axle of the rear passenger wheel 238 and the boss portion 237 c are connected by the lower frame pipe 201. The lower frame pipe 201 includes a lower frame pipe front part 201a and lower frame pipe rear parts 201b and 201b arranged so as to sandwich the passenger rear wheel 238 therebetween. The lower frame pipe rear portions 201b and 201b have their front ends rotatably connected to the vicinity of the rear end of the lower frame pipe front portion 201a, and an external force is applied by a torsion coil spring 201c provided at the connection portion. Also, it returns to an angle substantially parallel to the lower frame pipe front part 201a.

  The rear wheel support leg 202 has a rear wheel support leg upper part 202b and a rear wheel support leg lower part 202c. The upper end of the rear wheel support leg upper part 202b is connected and fixed to the fitting pipe 210, and the rear wheel support leg lower part 202c. The vicinity of the lower end of the portion 202c is branched so as to sandwich the passenger rear wheel 238 from the left and right. The lower end of the rear wheel support leg upper portion 202b is formed in a substantially cylindrical shape that opens only downward, and is slidably fitted and inserted near the upper end of the rear wheel support leg lower portion 202c. A substantially cylindrical protrusion 202d having a smaller diameter than the rear wheel support leg lower part 202c is erected on the upper end of the rear wheel support leg lower part 202c, and the rear wheel support leg upper part 202b and the rear wheel support leg lower part are provided on the substantially columnar protrusion 202d. A coil spring 202a that connects the portions 202c is wound. Therefore, even if a longitudinal force is applied to the rear wheel support legs 202, 202 and the length thereof changes, the rear wheel support legs 202, 202 are restored to a predetermined length by the restoring force of the coil springs 202a, 202a. It is made to do.

  The passenger car 200 configured as described above includes a lower frame pipe rear part 201b that is rotatable with respect to the lower frame pipe front part 201a, and a rear wheel support leg lower part that is slidable with respect to the rear wheel support leg upper part 202b. Each of 202c is designed to return to a predetermined position and has a buffering capacity. Even when traveling on a rough road, vibrations from the rear passenger wheels 238, 238 are prevented from being transmitted to the passenger, and the passenger can ride comfortably.

  The fitting pipes 210 and 210 are pipes whose rear ends are sealed, and the cross section of the inner periphery thereof is formed in a substantially similar shape that is slightly smaller than the cross section of the outer periphery of the cargo bed main members 141 and 141. The shape of the fitting pipes 210 and 210 is not particularly limited as long as the fitting pipes 210 and 210 can be externally inserted into the main carrier materials 141 and 141. In the fitting pipes 210, 210, guide grooves 211, 211 facing each other from the opening at the front end to the vicinity of the rear end are formed at substantially the same height as the horizontal members 142,. Therefore, the fitting pipes 210 and 210 can be externally inserted into the loading bed main materials 141 and 141 until the rear ends of the loading bed main materials 141 and 141 reach the rear ends of the fitting pipes 210 and 210, and in this case, The materials 142,... Are guided into the guide grooves 211, 211 and do not become an obstacle. The main carrier materials 141 and 141 and the fitting pipes 210 and 210 are provided with vertical through holes at corresponding positions near the rear end, and bolts and nuts inserted into and screwed into the through holes. Since the main carrier materials 141 and 141 and the fitting pipes 210 and 210 are fixed at 235 and 235, the passenger car 200 is connected to a predetermined position of the cargo bed 140.

  The base plate 220 is a substantially rectangular flat plate-like member, and guide members 236,. Each of the guide members 236,... Is provided so as to share at least one side with the base 200, and a fastening hole is formed in the lateral surface.

  On the base plate 220, passenger seats 231,... Are arranged, and the same number of passenger seat handles 232,. The position in the front-rear direction of the passenger seats 231,... Is in a range from the front end of the ground contact surface of the passenger front wheel 239 to the rear end of the ground contact surface of the rear passenger wheel 238, and the center of gravity of the passenger 200 is also within the above range. To do. Therefore, when the passenger car 200 is used as a baby carriage, gravity is applied to the passenger wheel front wheels 239, 239 and the passenger rear wheels 238, 238 substantially equally, and the baby carriage is stabilized. When the passenger car 200 is connected to the bicycle main body 100, the rear wheel 108b of the bicycle main body 100 and the axles of the passenger rear wheels 238 and 238 are disposed at substantially equal positions in the front-rear direction. The position in the direction is between the axle of the front wheel 108a and the axle of the rear wheel 108b, and the bicycle with the passenger car after connection is stable regardless of the presence or absence of a passenger.

  The passenger seat handle 232 includes a passenger handle lower portion 232a provided by standing a bar on the base 220, and a T-shaped member 232b. The T-shaped member 232b has one end near the upper end of the passenger's seat handle lower part 232a so as to be pivotable and spring-biased upward. Stand almost vertically with the top facing up. The passenger can hold the grip portion and draw the T-shaped member 232b to a desired angle and can sit on the passenger seat 231. As a result, the passenger can safely get on the passenger car 200.

  The capsule case 234 is a transparent case made of fiber reinforced plastic, and can be opened and closed as shown in FIG. 6 and has a structure suitable for riding an infant or a child. The capsule case 234 does not have an open portion when the opening / closing part is closed, and can prevent the passenger from being exposed to wind and rain, or mud splashed from the rear wheel 108b from adhering to the passenger. The capsule case 234 includes a case main body 234a disposed substantially at the center on the left and right sides, and footrests 234b and 234b provided on the left and right sides of the case main body 234a. The material of the capsule case 234 is not necessarily limited to fiber reinforced plastic as long as it can prevent the passenger from being exposed to wind and rain, and may be various materials such as glass, rigid metal, or synthetic resin. Glass that can be easily processed to be transparent or a synthetic resin having rigidity is suitable, and light-weight fiber-reinforced plastic that has sufficient strength and does not easily break even if it falls is more suitable. The capsule case 234 is not necessarily transparent, and can be made of various materials with or without translucency. However, passengers can visually observe the outside of the capsule case 234 to detect danger, Moreover, in order not to give discomfort to the passenger, it is preferable to have at least translucency.

  The case main body 234a is sized such that the bottom thereof is inscribed in the guide members 236,... A fastening hole is formed in both front and rear end faces of the capsule case 234, and the capsule case 234 is placed on the base 220 by bolts and nuts inserted through the fastening hole and the fastening holes of the guide members 236,. Fixed.

  The footrests 234b and 234b are hollow portions having a substantially inverted J shape when viewed from the front, and only the curved ends thereof are open and communicate with the inside of the case main body 234a. A passenger who sits on the passenger seats 231... Can place both legs on the footrests 234b and 234b and can easily get on. The number of footrests 234b is not necessarily limited to one on each of the left and right sides. For example, the footrests 234b may be provided so as to be paired at positions slightly symmetrical to the front of each passenger seat 231,.

  The rear wheel support leg upper portions 202b and 202b are provided with substantially U-shaped hand handles 203 that are respectively bolted around the both ends so as to be rotatable. The hand handle 203 can be fixed by tightening the bolt after being directed to a desired angle. The hand handle 203 has a function of a hand handle for operating the passenger car 200 separated from the bicycle main body 100, and is rotated downward to rotate the bicycle main body 100. It also has a function as a protector that prevents foreign matter from coming into contact with the rear wheel 108b when connected to the rear wheel 108b.

  The main part of the saddle 110 is divided into a saddle central part 110a and saddle side parts 110b and 110b. The saddle central portion 110a has a support member 110c at the lower portion thereof. The support member 110c is connected to the seat post 107a and sandwiches and fixes the saddle rails 116 and 116. Above the support member 110c, a first arc-shaped member 111 and a second arc-shaped member 112 formed in a substantially arc shape when viewed from above are erected so that the inner circumference of the arc is directed forward. The first arc-shaped member 111 is provided with sliding holes 111a and 111a penetrating in the vertical direction at substantially symmetrical positions. Near the left and right ends of the second arcuate member 112, saddle rail through-holes 112b are formed, and substantially rectangular parallelepiped engaging portions 112a and 112a whose upper surfaces are toothed are provided upright. Saddle rails 116, 116 are inserted through the through holes 112b. At the rear end of the saddle central portion 110a, a third arc-shaped member formed in a substantially arc shape when viewed from above is provided in contact with the inner circumference of the arc facing forward. The third arcuate member 113 is provided with two left and right sliding holes 113a and 113a, and adjustment bolts 117 and 117 inserted into the sliding holes 113a and 113a are provided on the saddle side portions 110b and 110b. Screwed into the rear end.

  The saddle side portions 110b and 110b are interconnected by a connecting plate 110d provided near the front end of the saddle side portions 110b and 110b, and pivotally fixed to the connecting plate 110d. A fourth arc-shaped member 114 and a fifth arc-shaped member 115 formed in a substantially arc shape when viewed from above are provided below the saddle side portion 110b so that the inner circumference of the arc is directed forward. The fourth arc-shaped members 114 and 114 are formed in an arc shape having substantially the same diameter as the first arc-shaped member 111, and the fifth arc-shaped members 115 and 115 are circles having substantially the same diameter as the second arc-shaped member 112. It is formed in an arc shape. An adjustment bolt 117 inserted into the sliding hole 111a is screwed to the lower surface of the fourth arcuate member 114. The lower surface of the fifth arcuate member 115 is geared so that it can mesh with the upper surface of the locking portion 112a.

  The saddle 110 configured as described above can be adjusted in width by rotating the saddle side portions 110b and 110b. In a state where the adjustment bolts 117 are loosened, the saddle side portions 110b and 110b are rotatable within a range in which the adjustment bolts 117 can slide the sliding holes 111a and 111a and the sliding holes 113a and 113a. When the driver is seated after the saddle side portions 110b and 110b are directed to a desired angle, the fifth arc-shaped members 115 and 115 are engaged with the locking portions 112a and 112a, and both are pressed by the weight of the driver. The saddle side portions 110b and 110b are maintained at the angle. Therefore, the width of the saddle 110 can be easily adjusted only by the driver getting off the saddle and changing the angle of the saddle side portions 110b and 110b. Further, the saddle side portions 110b and 110b can be fixed at the angles by turning the saddle side portions 110b and 110b to desired angular positions and tightening the adjusting bolts 117 and so on.

  A left and right pivot shaft 118b is horizontally installed above the connecting plate 110d, and a substantially rectangular parallelepiped saddle nose 118 passes through the left and right shaft through holes 118a formed near the rear end thereof. By tightly fitting the moving shaft 118b, the moving shaft 118b is provided so as to be vertically rotatable. The saddle nose 118 configured as described above can be directed to and maintained at a desired angle.

  As shown in FIG. 12, the handle 130 of the bicycle body 100 includes a handle central member 130b that is connected to the front fork 102a and grip members 130a and 130a that extend left and right. 131 and 131 are connected. The ball joint 131 is provided at a lower screw fitting portion 131a provided at an end portion of the handle central member 130b, an upper screw fitting portion 131b screwed into the lower screw fitting portion 131a, and an end portion of the gripping member 130a. It has a spherical portion 131c. The lower screw fitting portion 131a is provided with a substantially hemispherical concave portion opened upward. On the other hand, a substantially circular grip member through hole 131d is formed in the upper end surface of the upper screw fitting portion 131b, and the grip member 130a is inserted into the grip member through hole 131d. The gripping members 130a and 130a can rotate in a desired direction around the ball joints 131 and 131 within a range regulated by contact with the edge of the gripping member through hole 131d. It is possible to fix the screw fitting portions 131a and 131a in this direction by tightly fitting the screw fitting portions 131a and 131a. By roughening at least one of the substantially hemispherical concave portion and the spherical portion 131c, it can be fixed more firmly.

  The down tube 106 extends forward from the head tube 102, and pedestal support bars 302 b and 302 b having a substantially circular cross section are provided at the front and rear of the connecting portion of the down tube 106 to the head tube 102. It is erected. The upper ends of the pedestal support bars 302b and 302b extend above the connecting portion of the front fork 102a with the handle central member 130b, and the pedestal 302 is placed on the upper ends of the pedestal support bars 302b and 302b. Has been. The pedestal 302 is formed in a substantially circular shape when viewed from above with a frame 302 a standing on the outer periphery, and the basket 301 can be placed on the pedestal 302. The outer periphery of the bottom of the basket 301 and the inner periphery of the frame 302a have substantially the same shape and size, and the basket 301 can be easily fixed to the pedestal 302 by being inserted into the frame 302a. In the vicinity of the upper end of the basket 301, annular portions 301a and 301a are provided. When the annular portions 301a and 301a are locked to hooks 210a and 210a projecting below the fitting pipes 210 and 210, the bicycle body A basket 301 can be suspended and attached to the passenger car 200 separated from the car 100.

  The means for fixing the basket 301 and the pedestal 302 is not necessarily limited to the above-described fitting insertion. For example, a member that can be locked to the basket 301 may be provided on the pedestal 302, or the basket 302 is placed in a frame 302a that is formed high. You may comprise so that 301 may be loosely fitted. In addition, as long as the basket 301 can be placed on the pedestal 302, the shapes of the basket 301 and the pedestal 302 are not particularly limited. Furthermore, as long as the pedestal 302 does not interfere with the steering operation, the pedestal 302 is not necessarily supported by the two pedestal support bars 302b and 302b erected on the down tube 106. It may be supported by more than this number of base support bars 302b, or may be supported by a member connected to the head tube 102.

  Below the down tube 106, there is provided a cylindrical member 121 having both ends open, with both left and right ends cut out substantially flat so as to widen downward. A shaft 122 is rotatably inserted into the cylindrical member 121, and legs 123 and 123 are connected to the shaft 122. At least the vicinity of the connecting portion between the legs 123 and 123 and the shaft 122 is substantially flat, and shaft through holes 123a and 123a are formed. The shaft 122 is loosely fitted in the shaft through hole 123a, and a pin 123b penetrating the shaft 122 and the leg 123 is provided so as to be orthogonal to the shaft through hole 123a. It is pivotally fixed to the shaft. Engagement protrusions 123c,... That can engage with engagement recesses 121b,... Provided on the opening edge portions 121a, 121a of the cylindrical member 121 protrude from the substantially flat plate-like portions of the legs 123, 123. Yes. When the engagement protrusions 123c are engaged with the engagement recesses 121b, the legs 123 and 123 can be fixed at a predetermined angle, and are at least rotated downward and arranged in a substantially vertical direction. , And are fixed in a state where they are rotated upward and arranged substantially horizontally.

  A pressing member having a substantially cylindrical shape having an outer diameter and an inner diameter substantially equal to those of the cylindrical member 121 on the outer side of the legs 123 and 123 of the shaft 122, and having an opening edge portion 125a obliquely provided by notching one end of the shaft 122. 125 and 125 are externally fitted. The opening edge portion 125 a is disposed substantially parallel to the opening edge portion 121 a of the cylindrical member 121.

  The compression springs 124 and 124 are wound around the shaft 122 outside the pressing member 125. The outer ends of the compression springs 124 and 124 are fixed in contact with nuts screwed to both ends of the shaft 122 that has been subjected to male screw processing. The compression spring 124 urges and presses the pressing member 125 inward via a washer, whereby the legs 123 and 123 are sandwiched between the opening edge 121a and the opening edge 125a.

  According to the both-leg stand 120 configured as described above, the legs 123 and 123 rotate while abutting against the opening edge portions 121a and 121a, and are regulated by the engagement protrusions 123c and so on and the engagement recesses 121b and so on. Fixed at a predetermined angle. When the legs 123 and 123 are rotated and fixed downward, the distance between the legs 123 and 123 increases, and the function of supporting the bicycle main body 100 or the bicycle with the passenger car is exhibited. On the other hand, when the legs 123 and 123 are rotated and fixed upward, the distance between the legs 123 and 123 is reduced so that the operation is not hindered.

100: Bicycle body, 101: Seat stay, 102: Head tube,
102a Front fork 103: Chain stay
104a: first semi-cylindrical member, 104b: second semi-cylindrical member, 104c: cylindrical portion,
105: Hose band, 106: Down tube, 107: Seat tube,
107a seat post, 108a: front wheel, 108b: rear wheel,
109: Chain, 109a: Drive sprocket,
109b: rear sprocket, 109c: intermediate gear, 109d: chain guard,
110: Saddle, 110a: Saddle center part, 110b: Saddle side part,
110c: support member, 110d: connecting plate, 111: first arcuate member,
111a: sliding hole, 112: second arcuate member, 112a: locking portion,
112b: Saddle rail through-hole, 113: third arcuate member, 113a: sliding hole,
114: Fourth arcuate member, 115: Fifth arcuate member, 116: Saddle rail,
117: Adjustment bolt, 118: Saddle nose, 118a: Shaft through hole,
118b: Rotating shaft, 120: Both leg stand, 121: Cylindrical member,
121a: edge of opening, 121b: engaging recess, 122: shaft, 123: leg
123a: shaft through hole, 123b: pin, 123c: engagement protrusion,
124: compression spring, 125: pressing member, 125a: opening edge,
130: handle, 130a: gripping member, 130b: handle central member,
131: Ball joint, 131a: Lower screw fitting portion, 131b: Upper screw fitting portion,
131c: spherical portion, 131d: gripping member through hole, 140: loading platform,
141: Main material of the carrier, 142: Horizontal member, 143: Connection member for the carrier,
143a: Lock nut, 144: Front support bar, 145: Back support bar,
200: Passenger, 201: Lower frame pipe,
201a: lower frame pipe front, 201b: lower frame pipe rear,
201c: torsion coil spring, 202: rear wheel support leg, 202a: coil spring,
202b: rear wheel support leg upper part, 202c: rear wheel support leg lower part,
202d: substantially cylindrical protrusion, 203: hand push handle, 204: connecting rod,
210: fitting pipe, 210a: hook, 211: guide groove, 220: base,
231: Passenger seat, 232: Passenger seat handle, 232a: Lower passenger seat handle,
232b: T-shaped member, 234: capsule case, 234a: case body,
234b: footrest, 235: bolt and nut, 236: guide member,
237: Front wheel support leg, 237a: Support leg upper part, 237b: Support leg lower part,
237c: boss part, 237d: boss part, 237e: pivot axis,
237f: stopper, 237g: clip, 237h: engagement piece,
238: Rider rear wheel, 239: Rider front wheel, 301: Basket,
301a: annular portion, 302: pedestal, 302a: frame, 302b: pedestal support bar

Claims (10)

A passenger car having a pair of front and rear fitting pipes, each having an axial guide groove communicating with the opening at the front end and facing each other, which can be used alone as a four-wheeled baby carriage,
A bicycle main body comprising a pair of left and right cargo bed main members that are substantially parallel to each other and interconnected by horizontal members provided at substantially the same height as the guide grooves,
The rear wheel of the bicycle body and the axle of the rear wheel of the bicycle body are arranged at approximately the same position in the front-rear direction when the passenger is connected to the bicycle body by inserting and fixing the fitting pipe to the main body of the loading platform. A bicycle with a passenger car, characterized by being configured as described above. A seat stay and a chain stay are formed by a plurality of pipes that are slidably fitted and connected to each other, and in which two semi-cylindrical members facing each other are in contact with each other and fastened by a hose band. And
Both ends of the seat stay are rotatably connected to a seat post and a rear axle.
At least a part of the horizontal member is supported by the front support bar connected to the semi-cylindrical member abutted on the chain stay from above and the rear support bar connected to the axle of the rear wheel,
and,
2. The bicycle with a passenger car according to claim 1, further comprising an intermediate gear that is urged so as to be in pressure contact with the chain regardless of the vehicle length of the bicycle body, and is engaged with the chain. The saddle is composed of a central saddle at the center of the left and right, and a pair of left and right side saddles that are connected by a connecting plate in the vicinity of the front end and pivotally supported by the connecting plate.
A first arc-shaped member and a second arc-shaped member are formed at the lower portion of the center saddle, a third arc-shaped member is disposed at the rear end of the center saddle, and a fourth arc-shaped member and a fifth circle are disposed at the lower portion of the side saddle. Arc-shaped members are all provided with the inner circumference facing forward,
The fourth arcuate member is brought into contact with the upper surface of the first arcuate member, and an adjustment bolt inserted through a sliding hole formed in the first arcuate member is screwed into the fourth arcuate member. ,
The lower surface of the fifth arcuate member, which is chopped, is erected on the second arcuate member and can be engaged with the engaging portion whose upper end surface is chopped,
and,
3. The riding according to claim 1, wherein an adjustment bolt inserted into a sliding hole formed in the third arcuate member is screwed to a rear end of the side saddle. Bicycle with a vessel.   The saddle nose is provided so as to be vertically rotatable by tightly fitting a shaft through hole drilled in the vicinity of the rear end of the saddle nose to a rotating shaft that is placed above the connecting plate. The bicycle with a passenger car according to any one of claims 1 to 3. A both-leg stand having a cylindrical member with both ends opened to be broadened downwardly and substantially flat at both ends, a shaft rotatably fitted in the cylindrical member, and a leg connected to the shaft. Is provided below the down tube,
The vicinity of the connecting portion with the leg shaft is formed in a substantially flat plate shape and a shaft through hole is formed,
A shaft is loosely fitted in the shaft through hole, and a leg is pivotally fixed to the shaft by a pin provided so as to be orthogonal to the shaft through hole,
The outer end is fixed to the end of the shaft and the leg is urged inward by a compression spring wound around the shaft,
and,
5. An engagement projection that engages with an engagement recess provided at an opening edge of the cylindrical member and fixes the leg at a predetermined angle is formed on the leg. A bicycle with a passenger car according to claim 1. A handle center member provided at both ends with a lower screw fitting portion having a substantially hemispherical recess opening upward, a gripping member provided at the end with a spherical portion inserted into the lower screw fitting portion, and the lower screw fitting portion and screw An upper threaded portion having a gripping member through-hole through which the gripping member is inserted,
6. The riding according to any one of claims 1 to 5, further comprising a handle that allows the gripping member to be fixed at an arbitrary angle by screwing the upper screwing portion and the lower screwing portion. Bicycle with a vessel. A front wheel support leg having an upper end connected to the fitting pipe and a front wheel support wheel pivotally supported at the lower end is composed of an upper support leg and a lower support leg.
The front wheel support leg can be folded by connecting the bosses provided at the lower end of the upper part of the support leg and the upper end of the lower part of the support leg to each other so as to be rotatable.
A clip that clamps the lower part of the support leg when the front wheel support leg is folded is fixed to the upper part of the support leg,
7. A stopper according to any one of claims 1 to 6, wherein a stopper that abuts the lower portion of the support leg and restricts the rotation of the lower portion of the support leg is protruded at a position below and behind the boss portion of the upper portion of the support leg. A bicycle with a passenger car according to claim 1. The rear wheel of the passenger car extends forward from the axle of the rear wheel of the passenger car and is connected to the boss on the upper part of the support leg, and extends upward from the axle of the rear wheel of the passenger car, and the upper end is fitted. It is pivotally fixed to the rear wheel support leg connected to the joint pipe,
The lower frame pipe is connected to a boss part at the upper part of the support leg, a lower frame pipe front part, a lower frame pipe rear part rotatably connected to the lower frame pipe front part, and a lower frame pipe front part and a lower frame A torsion coil spring connected to the rear part of the pipe and returning the lower frame pipe rear part to an angle substantially parallel to the lower frame pipe front part against an external force;
The rear wheel support leg includes a rear wheel support leg upper part connected to a fitting pipe, a rear wheel support leg lower part slidably fitted to the rear wheel support leg upper part, and a rear wheel support leg upper part and a rear wheel. The bicycle with a passenger car according to claim 7, further comprising a coil spring connected to a lower portion of the support leg and configured to return the rear wheel support leg to a predetermined length against an external force.   The substantially U-shaped handwheel handle is provided with a bicycler according to claim 7 or 8, wherein both ends are bolted to the upper portions of the left and right rear wheel support legs so as to be rotatable. bicycle. A pedestal supported by a pedestal support bar erected on the down tube and disposed above the connecting portion with the handle central member of the front fork, a hook projecting below the fitting pipe, and the pedestal With a basket that can be placed on
An annular portion is provided in the vicinity of the upper end of the basket so that the basket can be suspended from the passenger car separated from the bicycle body by being engaged with the hook. 10. A bicycle with a passenger car according to any one of 9 above.

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