JP2006142995A - Two-wheel vehicle with pusher hand rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a pusher hand rod easily attachable and detachable to a vehicle body while making a rear wheel brake lever of a steering handle usable. <P>SOLUTION: A two-wheel vehicle with the pusher hand rod comprises the pusher hand rod 90 attachably and detachably mounted from the upper part to a pusher hand rod holding cylinder 16 fixed to a body frame 10, a brake-shoe lever 116 mounted with a brake shoe 122 capable of being contacted and separated from the periphery of a rear wheel 30, and a brake interlocking mechanism for interlocking a brake lever 110 provided at the grip of the pusher hand rod 90 to the brake-shoe lever 116. The brake interlocking mechanism is made to be locked to and released from the brake-shoe lever 116. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a two-wheeled vehicle with a pusher bar in which a brake lever is provided on a pusher bar that rises from behind a seating seat.

  When a child or an infant starts to ride a motorcycle, the driving skill is usually inexperienced or the driver is not sufficiently used to drive, and often cannot run stably. In this case, the assistant may support the steering handle from the side to assist driving, or may push and support the back of the child (or infant) by hand.

  However, since the brake lever is attached to the steering handle, and the steering handle is held by a child (infant), it is impossible or extremely difficult for an assistant to operate the brake lever from the side. For this reason, in the case of an emergency, the assistant could not operate the brakes, and was only able to handle the child (infant) with an insufficient response to pulling or pushing. In particular, an infant may not be able to smoothly step on the foot pedal. In such a case, the assistant needs to push the infant's back or pull the steering handle, which causes a problem that the driver cannot run smoothly.

  Therefore, it has been proposed to attach a pusher bar to such a motorcycle and attach another brake lever to the pusher bar (Patent Document 1). In this proposal, a portal-type pusher bar extending upward from both sides of the rear wheel is erected on the body frame, and a brake lever for the rear wheel is attached to the pusher bar. The brake lever and the rear wheel drum brake are connected by a wire.

Utility model registration No. 3056755

  In this proposal, the brake lever side end of the wire connecting the brake lever and the brake drum originally attached to the left grip of the steering handle is removed, and this end is connected to the brake lever of the push rod. Therefore, when the child (infant) becomes familiar with driving and the handle bar becomes unnecessary, the handle bar is removed and the end of the wire is reconnected to the brake lever of the steering handle.

  The proposed one is that the rear wheel drum brake wire is removed from the steering handle (left side) brake lever and reconnected to the push lever brake lever. The brake cannot be operated and only the front brake can be operated. For this reason, there is a problem that it is difficult to master proper driving operation and it takes time to get used to it.

  In addition, when attaching and detaching the push bar, it is necessary to change the end of the wire between the brake lever of the push rod and the brake lever of the steering handle, which is very troublesome.

  The present invention has been made in view of such circumstances, and the rear wheel brake lever of the steering handle can be used, and a pusher bar for supporting the vehicle body and pushing the vehicle body can be changed by connecting the brake wire. An object of the present invention is to provide a two-wheeled vehicle with a pusher bar that can be easily attached to and detached from the vehicle body without troublesome work.

  According to the present invention, the object of the present invention is to provide a two-wheeled vehicle with a pusher bar including a pusher bar that extends obliquely upward and rearward from the rear of the seating seat disposed between the front and rear wheels. A pusher bar holding cylinder fixed to the vehicle body frame so as to open obliquely upward and backward from the middle, a pusher bar detachably attached to the pusher bar holding cylinder from above, and an outer periphery of the rear wheel A brake shoe lever to which a separable brake shoe is attached and which is swingably attached to the vicinity of the pusher bar holding cylinder by a support shaft in the vehicle body width direction, a brake lever provided at a grip part of the pusher bar, and the brake shoe lever And a brake interlocking mechanism that interlocks with the brake shoe lever, and the brake interlocking mechanism can be engaged with and disengaged from the brake shoe lever.

  The pusher bar can be attached to and removed from the pusher bar holding cylinder on the vehicle body side from above, and a brake shoe lever having a brake shoe that contacts and separates from the outer periphery of the rear wheel is rocked by a support shaft in the vehicle body width direction near the pusher bar holding cylinder. Because the brake lever of the pusher bar and this brake shoe lever are detachably linked by the brake interlocking mechanism, the pusher bar can be attached and detached by releasing the brake lever from the brake shoe lever when removing the pusher bar. Easy to do. Since the brake shoe lever is provided separately from the rear brake operated by the brake lever of the steering handle, the child (infant) can operate the rear brake by himself. For this reason, the child (infant) can quickly master driving operation.

  The brake shoe lever is preferably attached to the push rod holding cylinder, but may be attached to other parts of the body frame in the vicinity thereof. It is desirable that the brake interlocking mechanism is provided on the pusher bar, and that some components of the brake interlocking mechanism are engaged with and disengaged from the brake shoe lever when the pusher bar is attached and detached.

  If the motorcycle has an auxiliary wheel on one side (or both sides) of the rear wheel, the vehicle body will not fall easily in the left-right direction, and the pusher bar will mainly be used without paying too much attention to correcting the left-right tilt posture. Since the operation can be performed by concentrating on the traveling in the front-rear direction, the operability is improved (claim 2).

  The brake interlocking mechanism has a wire that passes through the pipe that forms the pusher bar and the upper end is connected to the brake lever, and a lifter that is attached to the lower part of the pusher bar and moves up and down by this wire. If it is configured to be able to be engaged and disengaged, the brake interlocking mechanism is all attached to the push bar side, and is suitable for downsizing (Claim 3). The lifter has a substantially cylindrical shape that slides on the outer periphery of the pusher bar, and a flange provided on the lifter can be engaged with and disengaged from the brake shoe lever. The lifter can have other structures. For example, a pin protruding through the pipe wall of the push bar can be moved up and down by a brake lever, and this pin can be used as a lifter to be engaged with and disengaged from the brake shoe lever.

  When using a substantially cylindrical lifter, cut out a part of the flange and rotate the lifter so that the notch is in a position where it does not engage the brake shoe lever. (Claim 4). By allowing the pusher bar to turn within a predetermined range of right and left and transmitting this rotation to the front steering wheel, the pusher bar can be steered (claim 5). In this case, the steering interlocking mechanism can be configured such that the pusher bar and the steering shaft are interlocked with each other through a rod passed through the main pipe of the vehicle body frame. In this way, the steering interlock mechanism can be housed in the vehicle body frame, so that the number of protrusions outside the vehicle body is reduced, and there is no possibility that the child's (infant) 's clothes will be hooked and soiled.

  If the lower part of the push bar and the vicinity of the brake shoe lever are covered with a cover, there is no possibility of hooking clothes on them or making them dirty. It is also possible to integrally form a mudguard for the rear wheel on this cover, which is suitable for reducing the number of parts (claim 7).

  FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is a side sectional view of a steering shaft holding cylinder, FIG. 3 is a side sectional view of a push rod holding cylinder when not braked, and FIG. FIG. 5 is a side view showing a brake lever provided on a pusher bar during braking, FIG. 6 is a side sectional view for explaining a brake interlocking mechanism, and FIG. 7 is a view showing a brake shoe lever and a lifter. 3, 4, 5, and 7 show the respective component parts in an overlapping manner, and are not accurate sectional views.

  In FIG. 1, reference numeral 10 denotes a vehicle body frame, which includes a main pipe 12 made of a pipe in the front-rear direction, a steering shaft holding cylinder 14 fixed to the front end thereof, and a push bar holding cylinder fixed to the rear end of the main pipe 12. 16, a seat tube 18 and a bottom bracket support pipe 20 that are positioned on a straight line passing through the rear portion of the main pipe 12 in the vertical direction, a pair of left and right chain stays 24 extending rearward from the bottom bracket 22, and a rear end of the tune stay 24 A pair of left and right back stays 26 connecting the seat tube 18 are provided.

  A steering front wheel 28 is held by the steering shaft holding cylinder 14 so as to be steerable left and right. The rear wheel 30 is held by a pair of left and right end plates fixed to the connecting portion of the tune stay 24 and the back stay 26. A pair of left and right auxiliary wheels 32 are held on the end plate. These auxiliary wheels 32 contact the road surface on both sides of the rear wheel 30 to prevent the vehicle body from falling to the left and right.

  A rear brake 34 composed of a band brake is assembled to the left side surface of the rear wheel 30. A crankshaft to which a pair of left and right crank pedals 36 are fixed is supported on the bottom bracket 22, and a crank gear (not shown) fixed to the right end of the crankshaft and the right side surface of the rear wheel 30 are fixed. A chain (not shown) is wound around a sprocket (not shown). These crank gear, sprocket, and chain are covered with a chain case 38.

  Reference numeral 40 denotes a seating seat, and a seat post (not shown) that holds the seat 40 is inserted into the seat tube 18 and fixed so that the height of the seat can be adjusted. The seat tube 18 has a smaller diameter than the bottom bracket support pipe 20, and the seat post can penetrate through the main tube 12 and enter the bottom bracket support pipe 20. Note that a gap is formed between the left and right sides of the seat post and the inner surface of the main tube 12, and a rod 64 of a steering interlock mechanism described later passes through this gap.

  Reference numeral 42 denotes a front fork for holding the front wheel 28, and 44 denotes a steering handle. As shown in FIG. 2, bushes 46 and 48 are fitted into the upper and lower openings of the steering shaft holding cylinder 14, and the inner cylinder 50 is rotatably held between the bushes 46 and 48. . A steering shaft 52 integral with the front fork 42 is inserted into the inner cylinder 50 from below, and the steering shaft 52 and the inner cylinder 50 are coupled by a pin 54 to rotate integrally. The steering shaft 52 is made of a pipe and projects upward through the upper bushing 46. A long slit 52A in the axial direction is formed at the upper end of the steering shaft 52, and the handle post 44A of the steering handle 44 is inserted from above. The handle post 44 </ b> A is fixed to the steering shaft 52 by tightening the upper end of the steering shaft 52 in the circumferential direction with a clamp 56.

  A flange-like ring 58 is fixed to the lower portion of the steering shaft 52, and this ring 58 abuts on the lower bush 48 so as to be slidable from below, and the load of the front wheel 28 is supported by the bush 48. A window 60 that opens toward the inside of the main pipe 12 is formed in the steering shaft holding cylinder 14, and a circular cam plate 62 is fixed to the inner cylinder 50 at a height that faces the window 60. The cam plate 62 is engaged with the front ends of two rods 64 (only one is shown) of the steering interlocking mechanism. That is, the front end of the rod 64 is bent downward at a substantially right angle, and the bent portion is engaged with the engaging hole 62A of the cam plate 62 from above.

  The two engagement holes 62 </ b> A of the cam plate 62 are positioned on a straight line in the vehicle width direction that passes through the center of the inner cylinder 50 at the straight advance position of the front wheel 28. These rods 64 are prevented from escaping upward from the engagement holes of the cam plate 62 by the spacers 66 locked to the upper bushing 46. A bracket 70 is fixed to the upper part of the steering shaft 52, a bracket 72 is fixed to a center bolt 68 that passes through the center of the front fork 42 in the front-rear direction, and a basket 74 is attached to these brackets 70, 72. . The center bolt 68 holds a front brake 76 composed of a caliper brake.

  Brake levers 80 (only shown on the right side in FIG. 1) provided on the left and right grips 78 of the steering bar handle 44 are connected to the rear brake 34 and the front brake 76, respectively. That is, the left brake lever is connected to the rear brake 34 by a wire 82, and the right brake lever 80 is connected to the front brake 76 by a wire (not shown). Caps 84 and 86 are attached to the upper and lower ends of the steering shaft holding cylinder 14. A mudguard 88 for the front wheel 28 is attached to the front fork 42.

  Reference numeral 90 denotes a pusher bar, which has an upper part of a metal pipe bent at an obtuse angle to form a grip 92. The lower part of the pusher bar 90 can be inserted into and removed from the pusher bar holding cylinder 16. That is, the pusher bar holding cylinder 16 is fitted with upper and lower bushes 94 and 96 that close the upper and lower openings, and the inner cylinder 98 is rotatably held by these bushes 94 and 96. The pusher bar 90 passes through the upper bush 94 and passes through the inner cylinder 98, and the lower end thereof is supported by the lower bush 96.

  A pair of engagement holes 98A that open upward are formed in the upper portion of the inner cylinder 98, and both ends of the pin 100 that crosses the pusher bar 90 are engaged with these engagement holes 98A. For this reason, the pusher bar 90 and the inner cylinder 98 rotate integrally. A disc-like cover plate 102 is fitted to the upper bush 94 from above, and a ring 104 that is guided by the cover plate 102 and contacts the bush 94 from above is fixed to the pusher bar 90. The ring 104 abuts on the bush 94 when the pusher bar 90 is inserted, and serves as a stopper for positioning the pusher bar 90 in the vertical direction.

  A cam plate 106 is fixed to the inner cylinder 98 at a height facing the main pipe 12. The cam plate 106 is formed with a pair of engagement holes 106A positioned on a straight line passing through the center of the inner cylinder 98 in the vehicle body width direction when the grip 92 is directed rearward (straight forward position). The rear end of the rod 64 is bent substantially perpendicularly downward, and engages with the engagement holes 106A from above. A spacer 108 that descends outside the inner cylinder 98 is attached to the upper bush 94, and this spacer 108 prevents the rod 64 from escaping upward from the engagement hole 106A.

  In this embodiment, inner cylinders 98 and 50 respectively provided on the pusher bar holding cylinder 16 and the steering shaft holding cylinder 14 are connected by a pair of rods 64 and rotate synchronously. Therefore, the steering shaft 52 can be steered in conjunction with the rotation of the push bar 90. That is, a steering interlocking mechanism that transmits the rotation of the push rod 90 to the front wheels 28 is formed by the inner cylinders 98, 50 by the rod 64, the cam plates 106, 62, and the like. Since this steering interlocking mechanism is described in detail in an application (Japanese Patent Application No. 2004-271937) by the same applicant, the configuration becomes clearer by referring to this.

  Next, a brake device operated from the pusher bar 90 will be described. A brake lever 110 is attached to the grip 92 of the pusher bar 90, and the brake lever 110 is operated by a brake interlocking mechanism including a wire 112 and a lifter 114 passed through a pipe of the pusher bar 90, which will be described later. To be told.

  The brake shoe lever 116 is swingably attached to a pair of brake brackets 118 and 118 welded to the upper portion of the push bar holding cylinder 16 with a space in the vehicle body width direction by a support shaft 120 in the vehicle body width direction. As shown in FIGS. 6 and 7, the brake shoe lever 116 is formed in a substantially J shape in a side view (FIG. 6) by raising both sides of the bottom portion 116A parallel to the support shaft 120. Is. Both ends of the torsion spring 124 held by the support shaft 120 are engaged with the standing portion 116B and the brake bracket 118, and the brake shoe lever 116 is clockwise in FIG. 6 (the direction in which the brake shoe 122 described later is separated from the rear wheel 30). A return habit is given. The bottom portion 116 </ b> A of the brake shoe lever 116 is a stopper that determines the return position of the brake shoe lever 116 in the clockwise direction by contacting the upper surface of the bush 94 fitted to the upper surface of the pusher bar holding cylinder 16.

  The rear part of the brake shoe lever 116 (the rear part of the standing part 116B) extends upward from the rear wheel 30, and the rear ends of both the standing parts 116B and 116B are joined by a brake shoe 122 facing the outer periphery of the rear wheel 30. (FIGS. 1, 6). The front part of the brake shoe lever 116, that is, the front part of the upright parts 116B and 116B extends to both sides of the pusher bar 90, and the front ends thereof are curved upward and the upper end thereof is bent almost horizontally to the pusher bar 90 side. The engaging claws 116C and 116C are formed. These engaging claws 116 </ b> C and 116 </ b> C are engaged with and disengaged from the lifter 114.

  Next, a mechanism that enables the brake interlocking mechanism to be engaged with and disengaged from the brake shoe lever 116 will be described. The wire 112 is a known Bowden wire, and the inner wire 112B reciprocates in the outer wire 112A. The upper end of the outer wire 112 </ b> A is locked to the bracket 110 </ b> A of the brake lever 110, and the lower end of the outer wire 112 </ b> A is locked to an outer receiving member 126 (FIG. 3) that traverses the pusher bar 90. The inner wire 112 </ b> B passes through the outer receiving member 126 and is locked to the upper end of the hook 128.

  The hook 128 is formed by bending the middle of an elongated sheet metal member into a crank shape. That is, the hook 128 is bent so as to escape interference with the pin 104A for fixing the ring 104 to the pusher bar 90 and the pin 100 (FIG. 6) for fixing the pusher bar 90 to the inner cylinder 98. A tension coil spring 130 is stretched between the lower end of the hook 128 and a claw 90 </ b> A provided at the lower end of the pusher bar 90. Therefore, a tensile force always acts on the hook 128 and the inner wire 112B.

  In the pusher bar 90, elongated holes 90B and 90B which are long in the axial direction are formed symmetrically with respect to the axial center at a position sufficiently higher than the engaging claw 116C of the brake shoe lever 116. A single lifter pin 132 that passes through the long holes 90B and 90B, passes through the lifter 114, and protrudes outward is locked to the hook 128. For this reason, the hook 128, the lifter pin 132, and the lifter 114 move up and down together.

  The lifter 114 is in the form of a pipe that slides on the outer periphery of the pusher bar 90, and the lower edge thereof is an enlarged flange 114A. As shown in FIG. 7, the flange 114A is formed with notches 114B and 114B of about 90 ° at axially symmetrical positions. The lifter 114 is formed with a long hole 114C in the circumferential direction in which the lifter pin 132 is engaged (FIG. 7C). For this reason, the lifter 114 is rotatable in the circumferential direction within the range of the long hole 114C.

  Reference numeral 134 denotes a lifter cap. The lifter cap 134 has a stepped pipe shape with an enlarged lower portion, and a step portion 134A that engages with the lifter pin 132 from above is formed on the inner surface thereof. A lock ring 134 </ b> B can be locked to the inner surface of the lower opening of the lifter cap 134. On the outer periphery of the lifter 114, a lifter spring 136 is contracted between the lock ring 134B and the lifter pin 132, and the lock ring 134B is locked to the lifter 114 by a pin 138. That is, holes 114D and 114D (only one is shown) that are long in the axial direction are formed at positions symmetrical with respect to the center axis of the lifter 114, and a pin 138 that protrudes from the inner peripheral surface of the lock ring 134B has these long holes. 114D.

  The lock ring 134B is mounted on the lifter 114 in a state where the lifter spring 136 is compressed in this manner, and the lower part of the lifter cap 134 is covered with the lock ring 134B. As a result, the pin 138 of the lock ring 134B pushed down by the spring 136 is locked to the lower edge of the long hole 114D, and the lifter cap 134 integrated with the lock ring 134B stops in the state shown in FIG. In this state, the flange 114A of the lifter 114 engages with the brake shoe lever 116 as shown in FIG. Accordingly, when the brake lever 110 is grasped, the hook 128 is lifted by the wire 112, and the lifter pin 132 and the lifter 114 are lifted together with the hook 128. For this reason, the brake shoe lever 116 rotates counterclockwise in FIG. 4 about the support shaft 120, and the brake shoe 122 is pressed against the outer periphery of the rear wheel 30 to act as a brake (FIG. 4).

  When the brake lever 110 is released, the hook 128 is returned downward by the coil spring 130. Therefore, the lifter 114 is lowered, the brake shoe lever 116 is returned by the torsion spring 124, and the brake shoe 122 is separated from the rear wheel (FIGS. 3 and 6).

  When the pusher bar 90 is rotated to the left and right, the inner cylinder 98 engaged with the pin 100 is integrally rotated. The rotation of the inner cylinder 98 is transmitted to the cam plate 62 and the inner cylinder 50 in the steering shaft holding cylinder 14 via the cam plate 106 and the rod 64. The rotation of the inner cylinder 50 is transmitted to the steering shaft 52 by the pin 54, and the front wheel 28 and the steering handle 44 are rotated left and right.

  As shown in FIG. 7B, the flange 114A of the lifter 114 is engaged with the claw 116C of the brake shoe lever 116 at the center of the flange 114A at the straight position of the front wheel 28, and within the steering range of the front wheel 28. The length and position of the flange 114A in the circumferential direction are set so that the claw 116C can be engaged with the flange 114A. For this reason, the flange 114A does not come off the claw 116C within the range in which the pusher bar 90 is rotated during steering. When the brake lever 110 is pulled, the brake shoe lever 116 swings and the brake shoe 122 is pressed against the rear wheel 30. The

  When the pusher bar 90 is pulled out, the lifter cap 134 is rotated counterclockwise in FIG. 7B, and the flange 114A of the lifter 114 is disengaged from the claw 116C of the brake shoe lever 116, that is, as shown in FIG. To position. In this state, the pusher bar 90 can be pulled upward without the flange 114A hitting the claw 116C. Therefore, when the child (infant) gets used to the bicycle, the push bar 90 can be pulled out so that the child can ride alone.

  In addition, if the recessed part into which the lifter pin 132 falls upwards in the position of FIG.7 (B) is formed in the step part 134A of the lifter cap 134, the lifter cap 134 can be stabilized in the position of FIG.7 (B).

  The lower part of the push bar 90 and the vicinity of the brake shoe lever 116 are covered with a cover 140. As shown in FIGS. 3 and 4, the front part of the cover 140 surrounds the upper part of the pusher bar holding cylinder 16 from the front, and the rear part extends above the rear wheel 30 and serves as a mudguard for the rear wheel 30. The cover 140 is attached by locking the front end to an engagement hole 140A provided on the front surface of the push bar holding cylinder 16, and fixing a rib projecting on the inner surface to the rear end surface 118A of the brake bracket 118 with a screw 140B. .

Side view of one embodiment of the present invention Side sectional view of the steering shaft holder Side cross-sectional view of the push rod holding cylinder when not braked Similarly, side sectional view during braking Side view showing the brake lever during braking Side sectional view for explaining the brake interlocking mechanism Brake shoe lever and lifter layout (A, B) and lifter (C)

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Body frame 12 Main pipe 16 Pusher rod holding cylinder 28 Front wheel 30 Rear wheel 32 Auxiliary wheel 64 Rod 90 Pusher bar 92 Grip 110 Brake lever 112 Wire 114 Lifter 114A Flange 114B Notch 116 Brake shoe lever 140 Cover

Claims (7)

In a two-wheeled vehicle with a pusher bar provided with a pusher bar that extends diagonally upward and backward from the rear of the seating seat disposed between the front and rear wheels,
A push bar holding cylinder fixed to the vehicle body frame so as to open obliquely upward and rearward from between the seating seat and the rear wheel;
A pusher bar detachably attached to the pusher bar holding cylinder from above;
A brake shoe lever attached to the outer periphery of the rear wheel and swingably attached to the vicinity of the pusher bar holding cylinder by a support shaft in a vehicle body width direction;
A brake interlock mechanism that interlocks the brake lever provided on the grip portion of the push bar and the brake shoe lever;
The two-wheeled vehicle with a pusher bar, wherein the brake interlocking mechanism can be engaged with and disengaged from the brake shoe lever.   The two-wheeled vehicle with a pusher bar according to claim 1, further comprising an auxiliary wheel on a side of the rear wheel.   The brake interlocking mechanism includes a wire that is passed through a pipe that forms a pusher bar and whose upper end is locked by a brake lever, and a lifter that is attached to the lower part of the pusher bar and moves up and down by the wire. The two-wheeled vehicle with a pusher bar according to claim 1 or 2, wherein the two-wheeled vehicle can be engaged with and disengaged from the shoe lever.   The lifter has a substantially cylindrical shape with a flange on the outer periphery, and is slidably mounted on the outer periphery of the pusher bar. The flange is provided with a notch that is partially cut off in the circumferential direction. The two-wheeled vehicle with a pusher bar according to claim 3, wherein the engagement with and disengagement from the brake shoe lever can be switched by rotating the lever.   The push bar is rotatably held within a predetermined angle range by the push bar holding cylinder, and includes a steering interlocking mechanism that transmits the rotation of the push bar to the front steering wheel and enables the front wheel to be steered. A motorcycle with a pusher bar. The vehicle body frame includes a main pipe made of a substantially straight pipe, and a steering shaft holding cylinder and a push bar holding cylinder fixed to the front end and the rear end of the main pipe,
The two-wheeled vehicle with a pusher bar according to claim 5, wherein the steering interlocking mechanism transmits the rotation of the pusher bar to the front wheel by a rod inserted into the main pipe. The two-wheeled vehicle with a pusher bar according to claim 1, further comprising a cover that covers a lower part of the pusher bar and a brake shoe lever, and a mudguard for a rear wheel is integrally formed on the cover.

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