JP4720482B2 - Motorcycle frame cover - Google Patents

Description

  The present invention relates to a frame cover that covers a front portion of a vehicle body frame that includes a radiator disposed in front of an engine in a motorcycle.

  In motorcycles, various types of fittings that cover engines, frames, and the like are used. For example, in a vehicle equipped with a so-called full cowling, most of the engine and the frame are arranged in the cowling. By covering the engine and the frame by cowling, it is possible to improve the aerodynamic characteristics and the appearance performance.

  On the other hand, there are some that are not equipped with this type of cowling but are equipped with, for example, a water-cooled engine and the radiator is covered with a radiator cover. For example, in the motorcycle described in Patent Document 1, a side cover that covers the side between the fuel tank and the engine is provided with an exhaust port for discharging exhaust air from a radiator to the rear of the vehicle body. Provided. Moreover, what has the engine guard which covers an engine from the downward direction like the motorcycle of patent document 2 is known.

JP 2004-306625 A Japanese Patent Publication No. 6-513

  However, in conventional motorcycles, the fittings that cover the engine, the body frame, and the like usually have a tightening screw exposed to the outside in order to maintain maintenance and the like. For this reason, the appearance may be affected as it is. Also, once this type of equipment is attached, there is a problem that it takes a great deal of time to remove and re-install the radiator, etc. that is placed inside it. It was.

  In view of such circumstances, an object of the present invention is to provide a frame cover for a motorcycle that can improve workability effectively during attachment and detachment while realizing excellent appearance performance and the like.

A frame cover of a motorcycle according to the present invention includes a head pipe at the front end of a vehicle body frame that supports a front fork on which a front wheel is rotatably supported so as to swing left and right, and a headlamp unit disposed in front of the head pipe. , a water-cooled engine mounted behind and below the head pipe with a transmission integrally includes a radiator disposed along the down tube extending from the bottom of the head pipe in front of the engine downward, In a motorcycle including a frame cover that covers a front portion of a vehicle body frame including the radiator disposed in front of the engine from both left and right sides, the frame cover is disposed rearward of the head lamp unit and the head a frame cover portion covering around the pipe, and the down tube the Rajie And a body cover portion which covers from the left and right, constitute the shape of a substantially circular shape in front view with a lower cover portion covering the lower part of the radiator, the frame cover portion is separated connected with the body cover portion and the lower cover portion and another member It is possible to form.

  Further, in the frame cover of the motorcycle of the present invention, the connecting portion that enables the frame head cover portion and the body cover portion to be separately connected extends from the lower part of the head pipe of the vehicle body frame to the rear upper side, and is at least one place. The fastening portion is covered with a fuel tank placed on the vehicle body frame behind the head pipe.

  Further, in the motorcycle frame cover of the present invention, the body cover portion is formed by dividing into a right half body and a left half body, and a lower end portion is connected with the lower cover portion extending left and right, and an upper portion of the body cover portion is connected. An engagement connection portion is provided in the vicinity of the separation connection portion with the frame head cover portion.

  Also, in the motorcycle frame cover of the present invention, the body cover portion and the lower cover portion fasten the upper portion of the body cover portion to the vehicle body frame, while the hook-like locking portion provided on the lower cover portion is It is characterized by being locked to the down tube.

  According to the present invention, the pre-assembled frame cover can be appropriately supported and fixed on the vehicle body frame side at the two main parts of the upper part and the lower part, and the attaching operation can be performed easily and efficiently. In particular, when removing the frame cover, the lower portion can be partially removed from the connecting portion without removing the entire frame cover, and the workability is excellent. Thereby, the maintenance of the radiator and the like can be performed efficiently.

  Further, in the connecting portion between the frame head cover portion and the body cover portion, one fastening portion is covered with a fuel tank and is arranged so as not to be exposed in appearance. By adopting such an arrangement relationship, it is possible to effectively prevent mischief and effectively contribute to theft prevention measures.

  Further, around the steering head pipe, the right half and the left half are combined so as to hold the cables from the left and right, and are accommodated in the opening. When uniting the frame head cover in this way, it does not have a direct locking structure such as a clip or a screw to the steering head pipe, so it can be installed efficiently while holding the cables already routed properly. It can be performed.

Hereinafter, preferred embodiments of a frame cover of a motorcycle according to the present invention will be described with reference to the drawings.
1 and 2 show an example of a motorcycle according to an embodiment of the present invention. Here, first, the overall configuration of the motorcycle 100 will be outlined. In each figure, the front and rear of the vehicle are represented by arrows Fr and Rr, and the right and left are represented by arrows R and L, respectively. In the figure, two front forks 103 supported by a steering head pipe 102 so as to be pivotable to the left and right are provided at a front portion of a body frame 101 made of steel or aluminum alloy. A handle bar 104 is fixed to the upper end of the front fork 103, and grips 105 are provided at both ends of the handle bar 104. A front wheel 106 is rotatably supported on the lower portion of the front fork 103, and a front fender 107 is fixed so as to cover the upper portion of the front wheel 106. The front wheel 106 has a brake disc 108 that rotates integrally with the front wheel 106.

  A swing arm 109 is swingably provided at the rear portion of the vehicle body frame 101, and a rear shock absorber (not shown) is mounted between the vehicle body frame 101 and the swing arm 109. A rear wheel 110 is rotatably supported at the rear end of the swing arm 109, and a rear fender 111 is disposed above the rear wheel 110.

  A headlamp unit 112 is supported in front of the steering head pipe 102, and a fuel tank 113 is supported in the rear of the steering head pipe 102 by a vehicle body frame 101 (tank rail 101A; see FIG. 4). A seat 114 is continuously provided at the rear portion of the fuel tank 113, and the rider M can sit on the seat 114 as shown in the drawing and can drive with his feet on the footrest 115.

  A water-cooled engine unit 116 is mounted below the fuel tank 113 below the steering head pipe 102. In this example, a V-type two-cylinder engine is provided and a transmission is integrally provided. Here, in front of the engine unit 116 (front cylinder), as shown in FIG. 1 or FIG. 5, the down tube 101 </ b> B is inclined rearward from the lower portion of the steering head pipe 102 and extends downward. In this embodiment, there is a pair of left and right down tubes 101B, and a radiator 117 is disposed along the front side of the down tubes 101B.

  In addition, as shown in FIG. 6, a radiator louver 118 is disposed at the front portion of the radiator 117. A radiator reserve tank 119 is disposed on the left side of the radiator 117, and a rear brake reserve tank 120 is disposed on the right side thereof. These reserve tanks 119 and 120 are mounted and supported at appropriate positions using the body frame 101 or the like.

  The present invention includes the frame cover 10 that covers the front portion of the vehicle body frame 101 including the radiator 117 disposed in front of the engine unit 116 from the left and right sides as described above. As shown in FIG. 1, the frame cover 10 is inclined to the rear from the steering head pipe 102 and extends downward in a side view so as to cover the radiator 117 and the down tube 101B. Is done.

  FIG. 3 shows a specific configuration example of the frame cover 10. The frame cover 10 is resin-molded and includes a frame head cover portion 11 that covers the steering head pipe 102, a body cover portion 12 that covers the down tube 101B and the radiator 117 from the left and right sides, and a lower cover portion 13 that covers the lower side of the radiator 117. A body cover lower 14 is connected to the lower end portion of the body cover portion 12.

In this case, as shown in FIG. 3, the body cover 12 is divided into a right half 12 _(R) and a left half 12 _(L) , and the frame head cover 11 and the body cover lower 14 are correspondingly formed. Are also divided into a right half 11 _(R) and a left half 11 _(L) , a right half 14 _(R) and a left half 14 _(L) , respectively. The right half and the left half forming a pair have substantially the same configuration except for a part.

The frame cover 10 has a substantially vertically long oval shape when viewed from the front (see FIG. 7 and the like), and a portion substantially corresponding to the radiator 117 is an opening. First of all, the frame head cover portion 11 is joined around the steering head pipe 101 and a part of the rear body frame 101 as shown in FIG. 4 by combining the right half 11 _(R) and the left half 11 _(L) . In other words, it is arranged so as to cover it completely. When the right half body 11 _(R) and the left half body 11 _(L) of the frame head cover portion 11 are combined, a plurality of engaging means (claw pieces and their engaging portions) 15 provided at the respective leading ends are mutually connected. Engage. Further, the right half body 11 _(R) and the left half body 11 _(L) are fastened to each other by the clip 16 on the upper surface of the frame head cover section 11, and the shape of the frame cover section 101 can be held by the coupling or connecting means. It becomes.

Further, as shown in FIG. 3 or FIG. 4, a guide wall 17 is formed at the front end of the left half 11 _(L) of the frame head cover 11, and a cable insertion opening 18 to be described later is formed inside thereof. Will be established. The guide wall 17 is provided with a partition rib 17a when the cable 121 is inserted. The cable 121 includes a throttle cable 121A, a clutch cable 121B, and the like. On the other hand, the right half 11 _(R) has a projecting piece 19 formed so as to partially embrace the steering head pipe 102.

  The frame head cover portion 11 is coupled to the body cover portion 12 provided below the frame head cover portion 11 via the connecting portion 20 so as to be separable and connectable. As shown in FIG. 1, the connecting portion 20 extends substantially linearly from the lower portion of the steering head pipe 102 toward the rear upper side.

The body cover portion 12 is formed to be gradually wider (left and right direction) from the connecting portion 20A to the frame head cover portion 11 downward. The body cover portion 12 has an engagement connecting portion in the vicinity of the connecting portion 20 with the upper frame head cover portion 11. In this example, when the right half 12 _(R) and the left half 12 _(L) of the body cover portion 12 are combined, a plurality of engaging means (claw pieces and their engaging portions) 21 provided near the top ends of the respective upper portions. Are engaged with each other. Further, small protrusions 22 are formed at positions close to the engaging means 21 of the right half 12 _(R) and the left half 12 _(L) , and each small protrusion 22 has a hole 22a having an axis in the front-rear direction. Are formed respectively. By inserting fasteners such as clips through these holes 22a, the small protruding pieces 22 are fastened together.

As described above, the frame head cover portion 11 and the body cover portion 12 are connected via the connecting portion 20. In this case, it has fastening parts 23 and 24 in the rear end part of connecting part 20, and these are mutually connected by fastening these with screw 25, respectively. Further, another fastening portion 26 is set near the front end portion of the connecting portion 20 in the body cover portion 12, and the screw 28 is screwed to the vehicle body frame 101 side through the cushion 27 in the fastening portion 26. The body cover part 12 is fixed. Note that the rear portions of the right half 12 _(R) and the left half 12 _(L) of the body cover portion 12 have contact pieces 12 a formed so as to be in contact with appropriate positions of the body frame 101.

  Here, as shown in FIG. 4, the tank rail 101 </ b> A and the tension rail 101 </ b> C of the vehicle body frame 101 are connected to the steering head pipe 102 on the rear side thereof, and the frame head cover portion 11 includes (a part of) these members. It arrange | positions so that it may cover. In this case, the screw 28 set in the fastening portion 26 described above may be screwed into an appropriate position of the tension rail 101C. Further, one of the fastening parts 23 and 24 is located behind the fastening part 26, and is covered with a fuel tank 113 placed on the vehicle body frame 101 as shown in FIG. Is done.

As described above, the body cover lower 14 is connected to the lower end portion of the body cover portion 12. In this case, the fastening portions 29 and 30 of the body cover portion 12 and the body cover lower 14 are provided.
Are connected to each other by fastening them with the screw 31.

Further, the body cover part 12 and the lower cover part 13 are connected to each other by pressing an engaging protrusion 32 protruding from the lower end of the body cover part 12 into an engaging part 34 of the lower cover part 13 via a cushion 33. Thus, the body cover portion 12 (the right half body 12 _(R) and the left half body 12 _(L) ) is connected at the lower end portion thereof by the lower cover portion 13 that extends in the left-right direction. In this case, the engaging protrusion 35 provided on the inner side of the body cover lower 14 is pushed into the engaging portion 37 of the lower cover portion 13 via the cushion 36. Further, the fastening portions 38 and 39 of the lower cover portion 13 and the body cover lower 14 are fastened by the screw 40, and these are connected to each other.

  Further, the frame cover 10 is attached to and supported by the lower cover portion 13 in particular in relation to the vehicle body frame 101. In this case, as shown in FIG. 5, each of the down tubes 101B has a pair of mounting bosses 41 and 42 in the vicinity of the lower end thereof. Correspondingly, the lower cover portion 13 has a hook-shaped locking portion, that is, a hook 43, 44 is provided. The lower cover 13 is locked to the down tube 101B by engaging the hooks 43 and 44 with the corresponding mounting bosses 41 and 42 and fastening them with the clips 45. In this case, the hook 43 opens substantially rearward and obliquely downward, while the hook 43 opens substantially rearward and obliquely upward. The mounting bosses 41 and 42 can be shared with the mounting bosses of the footrest bracket 122 (FIG. 1).

  In the above configuration, when the frame cover 10 is assembled to the vehicle body, the assembly process on the vehicle body side is already substantially completed at this time, that is, the radiator 117 is mounted on the vehicle body frame 101, and the front fork 103 and the like are also assembled. In addition, electrical wiring (such as cables 121) is also arranged. However, the fuel tank 113 is mounted after the frame cover 10 is attached.

First, the frame head cover portion 11, the body cover portion 12, the lower cover portion 13 and the body cover lower 14 are connected to each other. In this case, the upper side of the frame cover 10 is not coupled as shown in FIG. Then, the hooks 43 and 44 are locked by the corresponding mounting bosses 41 and 42 with the upper portion of the frame cover 10 being expanded as shown in FIG. 7, and then the steering head pipe 102, the tank rail 101A, the tension rail 101C, and the cable. The frame head cover part 11 is abutted so as to embrace 121 class.
In this case, first, the lower cover portion 13 can be easily and accurately attached to the down tube 101B by simply engaging the mounting boss 41 so that the hook 43 is covered from above and engaging the mounting boss 42 so as to push the hook 44 from the front side. Can be locked. Then, the body cover portion 12 is fixed by screwing the screw 28 to the vehicle body frame 101 side at the fastening portion 26, so that the upper and lower portions of the frame cover 10 can be appropriately supported and fixed on the vehicle body frame 101 side. it can.

  On the other hand, the frame cover 10 once attached can be removed as necessary during maintenance or the like. The frame head cover part 11 is configured separately from the body cover part 12 and the lower cover part 13 so as to be separable and connectable. When removing the frame cover 10, the frame head cover portion 11 is left attached to the vehicle body side, and only the lower portion, that is, the body cover portion 12 and the lower cover portion 13 are removed.

  According to the present invention, the pre-assembled frame cover 10 can be appropriately supported and fixed on the vehicle body frame 101 side at the two main parts of the upper part and the lower part as described above, and the attachment work can be performed easily and efficiently. Can do. Thus, there are advantages such as improved workability and less work time. In particular, the lower part of the frame cover 10 has a locking structure with hooks 43 and 44, so that it takes less time to mount and can be fixed accurately. Moreover, when removing the frame cover 10, a lower part can be partially removed from the connection part 20 without removing the whole, and it is excellent in workability | operativity. Therefore, maintenance and the like of the radiator 117 can be performed efficiently.

  In addition, in the connecting portion 20 between the frame head cover portion 11 and the body cover portion 12, one of the fastening portions 23 and 24 is covered with the fuel tank 113 and is arranged so as not to be exposed in appearance. By adopting such an arrangement relationship, it is possible to effectively prevent mischief and effectively contribute to theft prevention measures.

Cables 121 and harnesses are arranged around the steering head pipe 102. The right half 11 _(R) and the left half 11 _(L) are combined so as to embrace them from the left and right, and the opening is opened. 18 is accommodated. Thus, when the frame head cover portion 11 is combined, the steering head pipe 102 does not have a direct locking structure such as a clip or a screw. Can be installed well.

  Further, as apparent from FIG. 1, the frame cover 10 is configured to hide from the steering head pipe 102 to the lower portion of the radiator 117 and the down tube 101B. With this configuration, it is possible to effectively protect the rider M, the engine unit 116, the vehicle body frame 101, and the like against mud, rock jumps, and the like when the vehicle is running, and to improve the appearance particularly in the front portion of the vehicle body.

  Furthermore, in this embodiment, the frame cover 10 is composed of seven main parts, and the design shape, structural requirements, etc. can be optimized in each part. In particular, the degree of freedom of the shape of each part is increased, and the same rigidity as that obtained when the parts are integrated can be ensured by the fitting structure between the parts.

As mentioned above, although this invention was demonstrated with embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
For example, the frame cover 10 can be formed using any material such as resin or metal, and the example in which the main seven parts are configured in the above embodiment has been described. . Furthermore, the locking part of the frame cover 10 can be locked using not only the body frame 101 but also other parts of the body part.

1 is a side view showing an example of a motorcycle according to an embodiment of the present invention. 1 is a front view showing an example of a motorcycle according to an embodiment of the present invention. It is a disassembled perspective view of the frame cover in the embodiment of the present invention. It is a perspective view which shows the frame cover around the steering head pipe in embodiment of this invention. It is a perspective view which shows the attachment structure of the frame cover around the down tube in embodiment of this invention. It is sectional drawing which follows the AA line of FIG. It is a front view which shows a state at the time of attachment of the frame cover in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Frame cover 11 Frame head cover part 12 Body cover part 13 Lower cover part 14 Body cover lower 17 Guide wall 18 Opening 20 Connection part 23,24,26 Fastening part 41,42 Mounting boss 43,44 Hook 100 Motorcycle 101 Body frame 102 Steering head Pipe 103 Front fork 106 Front wheel 110 Rear wheel 113 Fuel tank 114 Seat M Rider

Claims (4)

A head pipe at the front end of a vehicle body frame that supports a front fork on which a front wheel is rotatably supported so as to be able to swing left and right, a head lamp unit disposed in front of the head pipe, and a transmission are integrally provided with the head. A water-cooled engine mounted below the pipe, a radiator disposed along the down tube extending downward from the lower portion of the head pipe in front of the engine, and the radiator disposed in front of the engine In a motorcycle provided with a frame cover that covers the front part of a vehicle body frame including a radiator from both left and right sides,
The frame cover is arranged behind the head lamp unit and covers the head pipe, a body cover portion that covers the down tube and the radiator from the left and right, and a lower cover portion that covers the lower portion of the radiator. in constructed exhibits a substantially circular shape in front view, the frame cover portion, the motorcycle frame cover, wherein the body cover portion and separated coupleable formed in the lower cover part and separate.   The connecting portion that enables the frame head cover portion and the body cover portion to be separately connected extends from the lower portion of the head pipe of the vehicle body frame to the rear upper side, and at least one fastening portion is located on the vehicle body behind the head pipe. The motorcycle frame cover according to claim 1, wherein the motorcycle frame cover is covered with a fuel tank placed on the frame.   The body cover portion is divided into a right half body and a left half body, and a lower end portion is connected by the lower cover portion extending left and right, and the body cover portion is connected in the vicinity of the separation connecting portion with the upper frame head cover portion. The motorcycle frame cover according to claim 1 or 2, further comprising a coupling portion.   The body cover portion and the lower cover portion fasten an upper portion of the body cover portion to the vehicle body frame, and a hook-like locking portion provided on the lower cover portion is locked to the down tube. Item 4. The motorcycle frame cover according to any one of Items 1 to 3.

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