JP2007223538A - Motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the number of parts and weight of a motorcycle by enabling a stand shaft used for supporting a stand to be used also for supporting a brake pedal. <P>SOLUTION: The motorcycle is provided with a gate-shaped stand 21 and the brake pedal 22. The gate-shaped stand 21 swings between a standing position A and a housing position B. The stand 21 is pivotally supported by a stand supporting part 20, and the grounding part 23a of the stand 21 is grounded at the standing position A. Then the grounding part 23a is directed toward the rear of a vehicle at the housing position B. The brake pedal 22 operates the brake of the rear wheel 5r. Then the brake pedal 22 is supported by the stand shaft 37, which is fixed to the stand supporting part 20 and rotatably supports the stand 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a stand-up position that is pivotally supported by a stand support portion to ground the left and right legs, a portal-shaped stand that can be rotated between a retracted position in which the legs are directed to the rear of the vehicle body, and a rear wheel brake. The present invention relates to an improvement of a motorcycle including an operating brake pedal.

Such motorcycles are already known as disclosed in Patent Documents 1 and 2.
Japanese Patent No. 2834479 JP-A-8-198172

  Conventionally, in such a motorcycle, since the stand and the brake pedal are attached to the engine or the vehicle body frame via their dedicated support shafts, two support shafts are required for their support. This not only increased the number of parts, but also caused an increase in weight.

  The present invention has been made in view of such circumstances, and a motorcycle that can contribute to the reduction of the number of parts and the weight reduction by using the stand shaft that supports the stand also for supporting the brake pedal. The purpose is to provide.

  In order to achieve the above-mentioned object, the present invention is a portal-type that can be pivoted between an upright position that is pivotally supported by a stand support portion and grounds the left and right legs, and a retracted position in which the legs are directed to the rear of the vehicle body. In a motorcycle including a stand and a brake pedal that operates a brake of a rear wheel, the brake pedal is supported by a stand shaft that is attached to the stand support portion and rotatably supports the stand. It is characterized by.

  According to the present invention, in addition to the first feature, the stand support portion is configured to support both end portions of the stand shaft, and the outer end of the stand shaft protruding outward from the stand support portion. A second feature is that the brake pedal is supported by the portion.

  Furthermore, in addition to the first or second feature, the third feature of the present invention is that the stand support portion is configured by a bracket that is fixed to a crankcase of an engine.

  Furthermore, the present invention is characterized in that, in addition to the first or second feature, the stand support portion is configured by a part of a crankcase of an engine.

  Furthermore, in addition to any of the first to fourth features, the present invention tilts downward and rearward when the stand rotates to the retracted position at the base end portion of the stand supported by the stand shaft. The fifth feature is that a warping plate facing forward is fixed.

  Furthermore, in the present invention, in addition to the fifth feature, in the sixth aspect, the baffle plate is constituted by a stopper plate provided on the stand so as to abut the fixed structure and restrict the standing position of the stand. Features.

  Furthermore, in addition to the first or second feature, the seventh feature of the present invention is that the stand support portion is configured by a bracket that is fixed to the vehicle body frame or the engine and is separate from them.

  According to the first aspect of the present invention, since the brake pedal is supported by the stand shaft that is attached to the stand support portion and supports the stand, the stand shaft also serves as the support shaft of the brake pedal, and thus the brake pedal is supported. Since a dedicated support shaft for the pedal and its support portion are not required, it is possible not only to reduce the number of parts but also to reduce the weight of the motorcycle.

  According to the second feature of the present invention, the stand support portion is configured to support both end portions of the stand shaft, so that the stand shaft and thus the stand can be firmly supported, and the stand support is supported. Since the brake pedal is supported on the outer end portion of the stand shaft that protrudes outward from the portion, the brake pedal can be easily attached to the stand shaft without being interfered with the stand.

  According to the third aspect of the present invention, the bracket and the brake pedal can be supported on the highly rigid crankcase of the engine, thereby increasing the support rigidity of the stand and the brake pedal. The mounting position of the stand and the brake pedal can be changed only by changing it, and it can be widely applied to various motorcycles. Further, since it is not necessary to form a stand support portion on the body frame, the structure of the body frame can be simplified.

  According to the fourth aspect of the present invention, since the stand and the brake pedal can be supported by the highly rigid crankcase without providing a special bracket, the stand and the brake pedal can be reduced while reducing the number of parts and reducing the weight. The support rigidity of the brake pedal can be increased.

  According to the fifth aspect of the present invention, when the stand is rotated to the retracted position and the obstacle collides with the baffle while the motorcycle is running, the baffle deflects the impact force of the obstacle downward. By this, the stand can be protected.

  According to the sixth aspect of the present invention, since the stopper plate that regulates the standing position of the stand has a function of a deflecting plate that deflects the impact force of the obstacle downward, the stand can be obstructed without increasing the number of parts. It can protect against the impact force of objects.

  According to the seventh feature of the present invention, since the stand support portion is constituted by a bracket which is fixed to the body frame or the engine and is separate from them, it is only necessary to change the bracket regardless of the body frame or the engine. , The mounting position of the stand and the brake pedal can be changed, and can be widely applied to various motorcycles. Further, since it is not necessary to form the bracket on the body frame or the engine, the structure of the body frame or the engine can be simplified.

  Hereinafter, embodiments of the present invention will be described based on preferred examples shown in the accompanying drawings.

  1 is a side view of a motorcycle according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a main part around a stand (standing state) in FIG. 1, and FIG. 3 is a retracted state of the stand. 4 is a sectional view taken along line 4-4 in FIG. 2, FIG. 5 is a perspective view of the bracket in FIG. 2, FIG. 6 is a sectional view taken along line 6-6 in FIG. 4, and FIG. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG.

  First, the description starts with the description of the first embodiment of the present invention shown in FIGS.

  In FIG. 1, a body frame F of a motorcycle M extends downward from a pipe-shaped main frame portion 2 inclined downward from the head pipe 1 and a rear end portion of the main frame portion 2. The head pipe 1 is composed of a pivot support frame portion 3 and a pair of left and right seat rail portions 4 and 4 which are coupled to the rear end portions of the pivot support frame portion 3 and the main frame portion 2 and extend rearward and upward. Thus, the steering stem 6a of the front fork 6 that supports the front wheel 5f is supported, and the steering handle 7 is connected to the upper end of the steering stem 6a. A pivot shaft 9 is fixed to the pivot support frame portion 3, whereby the rear fork 8 that pivotally supports the rear wheel 5 r is supported so as to be swingable up and down. A rear cushion 12 is interposed between the rear fork 8 and the seat rail portions 4 and 4.

  The engine E located between the front wheel 5f and the rear wheel 5r is attached to the main frame part 2 and the pivot support frame part 3. At this time, in particular, as shown in FIG. 2, the crankcase 15 of the engine E is fixed to the pivot support frame portion 3 by a pair of upper and lower bolts 16. The power of the engine E is transmitted to the rear wheel 5r via the chain transmission device 11.

  A luggage box 12 is attached to the front part of the left and right seat rail parts 4 and a fuel tank 13 is attached to the rear part thereof. A tandem passenger seat 17 is provided at the front end part of the luggage box 12 so as to open and close the upper surface. To be hinged.

  A body cover 18 that covers the body frame F and the cylinder portion of the engine E is attached to the body frame F, and a pair of left and right leg shields 19 are connected to the front end of the body cover 18.

  As shown in FIGS. 2 to 6, a stand 21 and a brake pedal 22 are attached to the crankcase 15 of the engine E via a bracket 20.

  As apparent from FIGS. 2 and 4, the stand 21 has grounding portions 23a, 23a at one end and a pair of left and right arranged in a C shape so as to be spaced apart from each other toward the grounding portions 23a, 23a. Leg bodies 23, 23, and supporting arms 24, 24 projecting from the back surfaces of the other end portions of the leg bodies 23, 23 and extending outward from the other end surfaces of the leg bodies 23, 23, and the support arms 24 , 24 are integrally connected to each other, and a cross member 26 is integrally connected to the intermediate portions of both legs 23, 23 to form a portal shape.

  The brake pedal 22 includes a cylindrical hub 27, a pedal arm 28 projecting forward from the outer peripheral surface of the hub 27, a stepping portion 29 formed at the front end of the pedal arm 28, and the hub 27 upward. The bearing bush 31 is fitted on the inner peripheral surface of the hub 27.

  The bracket 20 is fixed to the crankcase 15 in the vicinity of the lower end of the pivot support frame portion 3. As shown in FIG. 5, the bracket 20 is welded so as to integrally connect the left and right side plates 32 and 32 'joined to the left and right side surfaces of the crankcase 15 and the both side plates 32 and 32'. The connecting plates 33 are configured such that the side plates 32, 32 'are fixed to the crankcase 15 with bolts 35, 35 inserted into mounting holes 34, 34 formed in the side plates 32, 32'. Is performed by screwing and tightening to the crankcase 15.

  A pair of bosses 36, 36 are formed on both side plates 32, 32 'of the bracket 20 so as to be coaxial with each other. The support cylinder 25 of the stand 21 is sandwiched between the bosses 36, 36. The hub 27 of the brake pedal 22 is disposed adjacent to the outer end surface of the right boss 36, and the stand shaft 37 is inserted into the hub 27, bosses 36 and 36, and the support cylinder 25. The stand shaft 37 has a huge head 37a at one end and a split pin 38 attached to the other end to prevent the stand shaft 37 from coming off.

  As shown in FIGS. 4 and 6, a flat surface 39 is formed on one side surface of the other end of the stand shaft 37, and a detent piece 40 that engages with the flat surface 39 and prevents the stand shaft 37 from rotating. However, it is fixed to the left side plate 32 of the bracket 20 by welding or the like. The stand 21 and the brake pedal 22 are rotatably supported by the single stand shaft 37 thus prevented from rotating.

  The stand 21 has a standing position A (see FIGS. 2 and 4) for grounding the grounding portions 23a and 23a around the stand shaft 37, and a storage position B (see FIG. 3) for directing the grounding portions 23a and 23a toward the rear of the vehicle. In the standing position A, the stopper plates 41, 41 fixed to the ends of the legs 23, 23 on the opposite side of the grounding portions 23a, 23a by welding or the like are attached to the brackets. The rubber elastic stopper 42 attached to the right leg 23 is formed at the lower part of the exhaust muffler 43 of the engine E. It is regulated by coming into contact with the stopper portion 43a.

  Each of the stopper plates 41 is formed so as to be inclined downward and rearward when the stand 21 is rotated to the storage position B.

  A spring hook 44 is provided on either the left or right outer surface of the stand 21. Between the spring hook 46 and a spring locking pin 47 of a bracket 45 that is bolted to the outer surface of the crankcase 15. A toggle spring 48 is stretched, and the stand 21 is selectively held in the standing position A and the retracted position B by the tension of the toggle spring 48.

  As shown in FIGS. 2 and 4, a brake rod 49 connected to the brake of the rear wheel 5r and a link 50 connected to a stop switch are connected to the operating arm 30 of the brake pedal 22. When the rider depresses the brake pedal 22, the brake of the rear wheel 5r is activated, and the stop switch is activated to light a stopper lamp (not shown) at the rear of the vehicle. On the outer periphery of the hub 27 of the brake pedal 22, a return spring 51 made of a torsion coil spring is provided that attaches the pedal arm 28 in the non-operating direction of the brake of the rear wheel 5r.

  In the first embodiment, the bracket 20 constitutes the stand support portion of the present invention.

  Next, the operation of the first embodiment will be described.

  Since the brake pedal 22 is attached to the bracket 20 and supported by a stand shaft 37 that supports the stand 21, the stand shaft 37 also serves as a support shaft for the brake pedal 22. Accordingly, since the support shaft dedicated to the brake pedal 22 and the support portion thereof are not required, not only the number of parts can be reduced but also the weight of the motorcycle M can be reduced.

  At this time, the bracket 20 is formed with a pair of left and right bosses 36 that support both end portions of the stand shaft 37, so that the stand shaft 37 and thus the stand 21 can be firmly supported. Since the hub 27 of the brake pedal 22 is supported by the outer end portion of the stand shaft 37 protruding outward from the boss 36 of the boss 36, the attachment of the brake pedal 22 to the stand shaft 37 is not interfered with the stand 21. It can be done easily.

  Further, by attaching the bracket 20 that pivotally supports the stand 21 and the brake pedal 22 to the highly rigid crankcase 15 of the engine E, the support rigidity of the stand 21 and the brake pedal 22 can be increased, and the bracket 20 is changed. Thus, the mounting positions of the stand 21 and the brake pedal 22 can be changed, and can be widely applied to various motorcycles. Further, the structure of the vehicle body frame F can be simplified because it is not necessary to form the bracket 20 on the vehicle body frame F.

  In addition, since the bracket 20 is fixedly provided with a non-rotating piece 40 that engages with the flat surface 39 of the stand shaft 37 and prevents the rotation of the stand shaft 37, the stand shaft 37 can be prevented from rotating with a simple structure. The durability of the stand shaft 37 can be ensured.

  Furthermore, since the bracket 20 for attaching the stand shaft 37 is fixed to the crankcase 15 of the engine E, a small assembly of the engine E, the stand 21 and the brake pedal 22 can be formed. Therefore, in the main assembly line of the motorcycle M, As a result, it is possible to reduce the assembly man-hours and improve the production efficiency.

  Further, stopper plates 41 and 41 are provided at the front end portions of the legs 23 and 23, which occupy the position of the front end portion of the stand 21 at the storage position B of the stand 21, and these stopper plates 41 and 41 are inclined downward and rearward. Since the vehicle faces forward, when the stand 21 is held at the storage position B and the obstacle collides with the stopper plates 41 and 41 while the motorcycle M is traveling, the stopper plates 41 and 41 are affected by the impact force of the obstacle. The stand 21 can be protected by warping downward. Accordingly, since the stopper plates 41 and 41 have a function of a warping plate that warps the impact force of the obstacle downward, the stand 21 can be protected from the impact force of the obstacle without increasing the number of parts.

  Next, a second embodiment of the present invention shown in FIGS. 7 and 8 will be described.

  In the second embodiment, a pair of left and right support bosses 55 and 55 are formed as a part of the crankcase 15 as a stand support portion for supporting the stand shaft 137, and bearings are provided on the inner peripheral surfaces of the support bosses 55 and 55. Bushings 56 and 56 are fitted, respectively. The support bosses 55 and 55 with the bearing bushes 56 and 56 support the pipe-shaped stand shaft 137 in a freely rotatable manner, and ensure the durability of the stand shaft 137 while preventing the stand shaft 137 from rotating. obtain.

  The stand 21 does not have the support cylinder 25 as in the previous embodiment, but instead has support holes 57 and 57 in which the stand shaft 137 is rotatably fitted in the left and right support arms 24 and 24.

  The toggle spring 48 is stretched between a locking pin 58 protruding from one support arm 24 and a locking pin 60 protruding from a bracket 59 fixed to one side surface of the crankcase 15. . The bracket 59 is provided with one notch 61 and one bolt hole 62, and a notch 61 is engaged with a non-rotating pin 63 protruding from the side surface of the crankcase 15, so that the bolt hole The bracket 59 is fixed to the crankcase 15 by screwing the bolt 64 inserted into the crankcase 15 into the crankcase 15. By doing so, the bracket 59 can be fixed to the crankcase 15 with a single bolt 64.

  A hub 27 of the brake pedal 22 is fitted to the outer end of the stand shaft 137 protruding outward from one support boss 55 so as to be adjacent to the one support arm 24. The shaft 137 is connected by a connecting pin 65 that penetrates these shafts in the lateral direction. Since the stand shaft 137 integrally connected to the brake pedal 22 is rotatably supported by the pair of left and right support bosses 55 and 55, the support rigidity of the brake pedal 22 is enhanced, and the operation feeling of the brake pedal 22 is improved. Can be improved.

  In order to prevent the stand shaft 137 from coming off, a flange 137a that contacts the outer end surface of the hub 27 of the brake pedal 22 is formed at one end thereof, and the other end portion contacts the outer surface of the other support arm 24. The circlip 66 is locked.

  The standing position A of the stand 21 is regulated by the stopper plate 141 of the stand 21 coming into contact with the stopper portion 67 on the bottom surface of the crankcase 15.

  Since other configurations are the same as those of the previous embodiment, portions corresponding to those of the previous embodiment are denoted by the same reference numerals in FIG. 7 and FIG.

  According to the second embodiment, since the pair of left and right support bosses 55 and 55 constituting the stand support portion are formed of a part of the crankcase 15 of the engine E having high rigidity, the support bosses 55 and 55 having high rigidity are provided. Can be easily obtained, and the support rigidity of the stand shaft 137 can be increased. In addition, since a dedicated bracket for supporting the stand shaft 137 is not required, the structure can be simplified and reduced in weight.

  As mentioned above, although the Example of this invention was described, this invention is not limited to the said Example, A various design change can be performed in the range which does not deviate from the summary of this invention. For example, according to the first aspect of the present invention, the stand support portion that supports the stand shafts 37 and 137 can be formed in the vehicle body frame F.

1 is a side view of a motorcycle according to a first embodiment of the present invention. The principal part enlarged view around the stand (stand-up state) in FIG. The corresponding figure of FIG. 2 which shows the storing state of a stand. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. The perspective view of the bracket in FIG. FIG. 6 is a sectional view taken along line 6-6 in FIG. FIG. 3 is a view corresponding to FIG. 2 showing a second embodiment of the present invention. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG.

Explanation of symbols

E ... Engine F ... Body frame M ... Motorcycle 5r ... Rear wheel 15 ... Crankcase 20 ... Stand support Part (bracket)
21, 121 ... Stand 22 ... Brake pedal 23 ... Leg 23a ... Grounding part 33 ... Fixed structure (connecting plate)
37,137 ... Stand shaft 41 ... Stopper plate (warping plate)
55 ... Stand support (support boss)

Claims (7)

Rotates between an upright position (A) that is pivotally supported by the stand support portions (20, 55) and grounds the left and right legs (23) and a retracted position (B) that directs the legs (23) toward the rear of the vehicle body In a motorcycle having a portal-shaped stand (21, 121) that can be operated and a brake pedal (22) that operates a brake of the rear wheel (5r),
The brake pedal (22) is supported by a stand shaft (37, 137) attached to the stand support portion (20, 55) and rotatably supporting the stand (21, 121). , Motorcycles. The motorcycle according to claim 1,
The stand support portion (20, 55) is configured to support both ends of the stand shaft (37, 137), and the stand shaft (20, 55) projecting outward from the stand shaft (20, 55). 37, 137), the brake pedal (22) is supported on the outer end of the motorcycle. The motorcycle according to claim 1 or 2,
The motorcycle according to claim 1, wherein the stand support portion is constituted by a bracket (20) fixed to a crankcase (15) of the engine (E). The motorcycle according to claim 1 or 2,
The motorcycle according to claim 1, wherein the stand support portion is constituted by a part (55) of a crankcase (15) of the engine (E). The motorcycle according to any one of claims 1 to 4,
A baffle that tilts downward and rearward toward the front when the stand (21) rotates to the storage position (B) at the base end of the stand (21) supported by the stand shaft (37). A motorcycle characterized in that (41) is fixed. The motorcycle according to claim 5,
The baffle plate is constituted by a stopper plate (41) provided on the stand (21, 121) so as to abut the fixed structure (33) and restrict the standing position (A) of the stand (21). A characteristic motorcycle. The motorcycle according to claim 1 or 2,
The motorcycle according to claim 1, wherein the stand support portion is constituted by a bracket (20) which is fixed to the vehicle body frame (F) or the engine (E) and is separate from them.

Images