JP2008014173A - Vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle capable of improving the accuracy of attachment position of cover members with respect to mufflers. <P>SOLUTION: The motorcycle (vehicle) 1 includes exhaust pipes 18a and 18b connected to an engine 17, a chamber 19 connected to the exhaust pipes 18a and 18b, and the right-side muffler 20 and the left-side muffler 21 connected to the chamber 19. The motorcycle 1 also includes the right-side cover member 22 and the left-side cover member 23. The right-side cover member 22 is so disposed as to cover the circumference of a connecting portion between the chamber 19 and the right-side muffler 20, has an attachment portion 22a attached to the chamber 19 movably in a predetermined direction and is screwed to the right-side muffler 20. The left-side cover member 23 is so disposed as to cover the circumference of a connecting portion between the chamber 19 and the left-side muffler 21, has an attachment portion 23a attached to the chamber 19 movably in a predetermined direction and is screwed to the left-side muffler 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle, and more particularly to a vehicle equipped with a silencer.

  Conventionally, vehicles equipped with a silencer are known (see, for example, Patent Document 1). The above-mentioned Patent Document 1 includes an automatic exhaust pipe, a muffler (silencer) connected to the exhaust pipe, and a muffler cover (cover member) arranged so as to cover the periphery of the connection portion between the exhaust pipe and the muffler. A motorcycle (vehicle) is disclosed. In this motorcycle, a portion of the muffler on the muffler cover side is provided with a protrusion that protrudes in a direction along the direction in which the muffler extends, and a muffler is provided at the rear end of the muffler side of the muffler cover. An insertion port is provided through which the projection is inserted so as to be movable in the axial direction of the muffler. The muffler protrusion is inserted into the insertion port at the rear end of the muffler cover, and the front part of the muffler cover is attached to the outer peripheral surface of the exhaust pipe by the band member, so that the muffler cover is attached to the exhaust pipe and the muffler. Is attached.

JP 2003-227333 A

  However, in the structure disclosed in Patent Document 1 above, the muffler cover with respect to the muffler of the muffler cover is inserted into the insertion port at the rear end of the muffler cover so that the projection of the muffler is movable in the axial direction of the muffler. Since the muffler cover is fixed to the exhaust pipe by the band member at a position away from the mounting portion, it is difficult to improve the mounting position accuracy in the mounting portion of the muffler cover (cover member) with respect to the muffler (silencer). There is a point.

  The present invention has been made to solve the above-described problems, and one object of the present invention is to provide a vehicle capable of improving the mounting position accuracy of the cover member with respect to the silencer. is there.

Means for Solving the Problems and Effects of the Invention

  In order to achieve the above object, a vehicle according to one aspect of the present invention includes an engine, an exhaust pipe connected to the engine, an expansion chamber connected to the exhaust pipe, a silencer connected to the expansion chamber, A first cover member that is disposed so as to cover the periphery of the connection portion between the expansion chamber and the silencer, and is attached to the expansion chamber so as to be movable in a predetermined direction; and a screwing portion that is screwed to the silencer. It has.

  In the vehicle according to this aspect, as described above, by providing the first cover member that includes the mounting portion that is movably attached to the expansion chamber in a predetermined direction and the screwing portion that is screwed to the silencer. Since the first cover member can be fixed directly by screwing the first cover member to the silencer at the attachment portion of the first cover member to the silencer, the mounting position accuracy of the first cover member relative to the silencer can be improved. Can do. Further, by providing a first cover member that includes an attachment portion that is attached to the expansion chamber so as to be movable in a predetermined direction and a screwing portion that is screwed to the silencer, the attachment portion of the first cover member is provided in the expansion chamber. When the screwing portion of the first cover member is screwed to the silencer while attached to the silencer, the first cover member is moved in a predetermined direction to position the first cover member with respect to the silencer, and then the silencer Since it can be screwed to the container, the mounting workability of the first cover member can be improved.

  In the vehicle according to the above aspect, preferably, the attachment portion of the first cover member has a shaft portion made of a round bar or a circular tube, and the shaft portion of the first cover member extends in the expansion chamber. A support member having an insertion hole that is movably inserted in a direction is provided. If comprised in this way, since the axial part of the attachment part of a 1st cover member can be inserted in the insertion hole of the support member of an expansion chamber so that a movement in the extension direction of an axial part is possible, attachment of a 1st cover member is possible. The part can be easily and movably attached to the expansion chamber.

  In the vehicle in which the attachment portion of the first cover member has a shaft portion and the expansion chamber is provided with a support member, the support member preferably includes a damper having an insertion hole. If comprised in this way, since the vibration and impact from an expansion chamber can be absorbed with a damper, it can suppress that the vibration and impact from an expansion chamber are transmitted to a 1st cover member.

  In this case, preferably, the inner peripheral surface of the insertion hole of the damper has a concavo-convex shape, and the concavo-convex convex portion is formed so as to contact the outer peripheral surface of the shaft portion of the first cover member. If comprised in this way, compared with the case where the internal peripheral surface of the insertion hole of a damper is formed in the circumference shape which does not have an uneven | corrugated shape, the axial part of a 1st cover member and the internal peripheral surface of the insertion hole of a damper Therefore, the frictional resistance when inserting the shaft portion of the first cover member into the insertion hole of the damper can be reduced. Thereby, since the axial part of a 1st cover member can be made easy to insert in the insertion hole of a damper, the attachment workability | operativity with respect to the expansion chamber of a 1st cover member can be improved.

  In a vehicle in which the attachment portion of the first cover member has a shaft portion and the expansion chamber is provided with a support member, preferably, the portion of the shaft portion that is inserted into the insertion hole of the support member is a silencer. It is formed to extend in a direction along the extending direction. If comprised in this way, when screwing the screwing part of a 1st cover member to a silencer in the state which attached the axial part to the expansion chamber, a 1st cover member is made into the direction along the direction where a silencer is extended. Since it can be moved and screwed, the mounting workability of the first cover member can be further improved.

  In this case, preferably, the shaft portion of the first cover member is bent in a direction away from the inner surface of the first cover member, and the portion inserted into the insertion hole of the support member extends along the direction in which the silencer extends. It is formed to extend. With this configuration, when the shaft portion of the first cover member is inserted into the insertion hole of the support member, the shaft portion of the first cover member can be easily inserted into the insertion hole of the support member. The workability of attaching one cover member to the expansion chamber can be improved.

  In the vehicle according to the above aspect, the attachment portion of the first cover member is preferably attached to the expansion chamber so as to be movable in a direction along the direction in which the silencer extends. According to this structure, when the screwing portion of the first cover member is screwed to the silencer with the attachment portion of the first cover member being attached to the expansion chamber, the direction in which the silencer extends is set. Therefore, the positioning workability when the first cover member is attached to the silencer can be improved. As a result, the mounting workability of the first cover member can be further improved.

  In the vehicle according to the above aspect, the attachment portion of the first cover member is preferably arranged on the inner surface side of the first cover member. If comprised in this way, since it can suppress that the attaching part of a 1st cover member is arrange | positioned outside, it can suppress that a driver | operator's clothes etc. are caught in the attaching part of a 1st cover member. it can.

  In the vehicle according to the above aspect, the first cover member is preferably configured to be attachable to the expansion chamber and the silencer after the silencer is attached to the expansion chamber. If comprised in this way, before a 1st cover member is attached to a silencer, a silencer can be attached to an expansion chamber, Therefore The attachment workability | operativity with respect to the expansion chamber of a silencer can be improved.

  The vehicle according to the above aspect preferably further includes a second cover member attached to the expansion chamber, and the first cover member is arranged to be continuous with the second cover member. If comprised in this way, since it can suppress that a driver | operator's clothes enter between the 1st cover member and the 2nd cover member, a driver | operator's clothes etc. touch an expansion chamber and a silencer. Can be suppressed.

  In the vehicle according to the above aspect, the vehicle preferably further includes a vehicle body frame, and the first cover member is formed with a notch for suppressing contact with the vehicle body frame. If comprised in this way, when attaching a 1st cover member to an expansion chamber and a silencer, it can suppress that a 1st cover member contact | abuts to a vehicle body frame.

  The vehicle according to the above aspect preferably further includes a vehicle body frame to which the silencer is attached, and the silencer has a long hole-shaped screwing hole to be screwed to the vehicle body frame. With this configuration, when the silencer is screwed to the vehicle body frame, the silencer can be shifted with respect to the vehicle body frame. Even if this occurs, the silencer can be easily attached to the vehicle body frame.

  In the vehicle in which the silencer has a screw hole, preferably, the attachment portion of the first cover member is inserted into the expansion chamber so as to be movable in a predetermined direction, and the support has an insertion hole extending in the predetermined direction. A member is provided, and the screw hole having a long hole shape of the silencer is screwed to the vehicle body frame so as to be movable in a predetermined direction in which the insertion hole extends. According to this structure, when the silencer is screwed to the vehicle body frame in a state in which the silencer is displaced in the predetermined direction in which the insertion hole extends, the mounting portion of the first cover member is shifted in the predetermined direction in which the insertion hole extends. Since it can arrange | position, even if the process variation of components, such as a silencer, the attachment variation of components, etc. generate | occur | produce, a 1st cover member can be easily attached to a silencer and an expansion chamber.

  In this case, preferably, the support member includes a damper having an insertion hole. If comprised in this way, since the vibration and impact from an expansion chamber can be absorbed with a damper, it can suppress that the vibration and impact from an expansion chamber are transmitted to a 1st cover member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing the overall structure of a motorcycle according to an embodiment of the present invention. 2 to 13 are diagrams for explaining in detail the structure around the chamber of the motorcycle according to the embodiment shown in FIG. In the present embodiment, a motorcycle will be described as an example of the vehicle of the present invention. In the figure, the FWD direction indicates the front in the traveling direction of the motorcycle. Hereinafter, the structure of the motorcycle 1 according to an embodiment of the present invention will be described in detail with reference to FIGS.

  In the motorcycle 1 according to one embodiment of the present invention, as shown in FIG. 1, a main frame 3 extending in the front-rear direction is disposed behind the head pipe 2. The main frame 3 includes an upper frame portion 3a extending rearward from above and a lower frame portion 3b extending rearward from the lower side. A rear frame 4 extending upward in the rear direction is connected to the lower rear portion of the upper frame portion 3a. The head pipe 2, the main frame 3 and the rear frame 4 constitute a vehicle body frame.

  A handle 5 is rotatably attached to the upper part of the head pipe 2. A headlamp 6 is provided in front of the head pipe 2. A pair of front forks 7 having suspensions for absorbing impacts in the vertical direction are disposed below the head pipe 2. A front wheel 8 is rotatably attached to the lower ends of the pair of front forks 7. A front fender 9 is disposed above the front wheel 8.

  A cover member 10 is disposed on the upper frame portion 3a of the main frame 3. A seat 11 is disposed behind the cover member 10. The rear end portion of the upper frame portion 3a and the rear end portion of the lower frame portion 3b are connected. A pivot shaft 3c is provided at a connection portion between the upper frame portion 3a and the lower frame portion 3b of the main frame 3. The pivot shaft 3c supports a front end portion of the rear arm 12 so as to be swingable up and down. A rear wheel 13 is rotatably attached to the rear end portion of the rear arm 12. A rear fender 14 is attached above the rear wheel 13 so as to cover the rear wheel 13. Further, a fixing member 15 is attached to the lower side of the pivot frame 3c of the lower frame portion 3b of the main frame 3, and a footrest 16 is fixed to the fixing member 15.

  An engine 17 is disposed below the upper frame portion 3a of the main frame 3. The engine 17 has four cylinders, and includes a cylinder case portion 17a in which two front cylinders are disposed, and a cylinder case portion 17b in which two rear cylinders are disposed. . Further, two exhaust pipes 18 a are connected to the cylinder case portion 17 a on the front side of the engine 17. Two exhaust pipes 18 b are connected to the cylinder case portion 17 b on the rear side of the engine 17. The exhaust pipes 18 a and 18 b are connected to the chamber 19 while being directed rearward. The chamber 19 is an example of the “expansion chamber” in the present invention. The chamber 19 has a function of reducing exhaust noise by expanding exhaust gas from the engine 17. Further, as shown in FIG. 2, the chamber 19 is connected to the right muffler 20 and the left muffler 21, respectively. The right muffler 20 and the left muffler 21 are examples of the “muffler” of the present invention. Further, a right cover member 22 and a left cover member 23 are arranged around the connection portion between the chamber 19 and the right muffler 20 and around the connection portion between the chamber 19 and the left muffler 21, respectively. The right cover member 22 and the left cover member 23 are examples of the “first cover member” in the present invention.

  As shown in FIG. 2, the detailed structure around the chamber 19 includes, in the chamber 19, a connection portion 19a extending forward on the right side, a connection portion 19b extending forward on the left side, and two connection portions 19c and 19d extending upward. Is provided. In the present embodiment, the right side and the left side mean the right side and the left side in the traveling direction (FWD direction), respectively. Further, two exhaust pipes 18a connected to the cylinder case portion 17a on the front side of the engine 17 are attached to the connection portions 19a and 19b by metal band members 24, respectively. Further, a right cover member 25 and a left cover member 26 are attached to the connection portions 19a and 19b so as to cover the sides of the connection portions 19a and 19b, respectively. The right cover member 25 and the left cover member 26 are examples of the “second cover member” in the present invention. Further, two exhaust pipes 18b connected to the cylinder case portion 17b on the rear side of the engine 17 are attached to the connection portions 19c and 19d by metal band members 24, respectively.

  The chamber 19 is provided with a connecting portion 19e extending rearward on the right side and a connecting portion 19f extending rearward on the left side. As shown in FIG. 3, the connection part 20 a of the right muffler 20 and the connection part 21 a of the left muffler 21 are respectively attached to the connection parts 19 e and 19 f by metal band members 27. As shown in FIG. 4, a support portion 20 c having a screwing hole 20 b that is screwed to the rear frame 4 via a connecting member 28 is provided on the upper surface portion of the right muffler 20. Further, as shown in FIG. 3, a support portion having a screwing hole 21b screwed to the rear frame 4 (see FIG. 1) via a connecting member 28 (see FIG. 4) on the upper surface portion of the left muffler 21. 21c is provided. The screw holes 20b of the support portion 20c and the screw holes 21b of the support portion 21c have an elongated hole shape formed so as to extend in the horizontal direction, and insertion holes for two dampers 30 described later. It is screwed so as to be movable in the extending direction of 30a (arrow B direction and arrow C direction).

  Further, as shown in FIGS. 2 and 5, a metal right support member 29 is welded and fixed to a portion between the connecting portion 19 a and the connecting portion 19 e of the chamber 19. The right support member 29 is an example of the “support member” in the present invention. As shown in FIGS. 7 and 8, the portion of the right support member 29 that is welded to the chamber 19 is branched into a welded portion 29a and a welded portion 29b, and the welded portions 29a and 29b are in the direction of arrow A. (See FIGS. 5 and 7) is bent substantially in the opposite direction.

  Here, in the present embodiment, the right support member 29 includes a cylindrical collar portion 29c. As shown in FIGS. 5 and 6, a rubber damper 30 is attached to the collar portion 29c. As shown in FIGS. 10 and 11, this damper 30 has an insertion hole 30 a in which an uneven shape is formed along the circumferential direction of the inner peripheral surface. Further, as shown in FIG. 10, the concave and convex concave portions 30b and the convex portions 30c of the damper 30 are alternately formed six by six at intervals of about 30 ° along the circumferential direction of the inner peripheral surface. Further, as shown in FIGS. 6 and 11, the insertion hole 30a of the damper 30 is formed so that the opening end portion has a tapered shape. Further, the insertion hole 30a (see FIG. 11) of the damper 30 attached to the right support member 29 is formed so as to extend in a direction along the direction in which the right muffler 20 extends (arrow B direction) as shown in FIG. Has been. That is, the insertion hole 30a (see FIG. 11) of the damper 30 provided in the right support member 29 is in the direction along the direction in which the rear portion of the connecting portion 19e of the chamber 19 and the connecting portion 20a of the right muffler 20 extend (arrows). It is arranged to extend in the (B direction).

  Further, the welded portion 31 a of the left support member 31 is welded and fixed to the connecting portion 19 f of the chamber 19. The left support member 31 is an example of the “support member” in the present invention. As shown in FIGS. 12 and 13, the left support member 31 includes a cylindrical collar portion 31b. The collar portion 31b is also provided with a rubber damper 30 as shown in FIG. Further, as shown in FIG. 3, the insertion hole 30a (see FIG. 11) of the damper 30 attached to the left support member 31 is formed so as to extend in the direction (arrow C direction) along the direction in which the left muffler 21 extends. Has been. That is, the insertion hole 30a (see FIG. 11) of the damper 30 provided in the left support member 31 extends in the direction (arrow C direction) in which the connection portion 19f of the chamber 19 extends and the connection portion 21a of the left muffler 21 extends. It is arranged to extend.

  In the present embodiment, the right cover member 22 is disposed so as to cover the periphery of the connection portion between the connection portion 19 e of the chamber 19 and the connection portion 20 a of the right muffler 20. The left cover member 23 is disposed so as to cover the periphery of the connection portion between the connection portion 19 f of the chamber 19 and the connection portion 21 a of the left muffler 21. Thus, while the driver is driving with his feet on the footrest 16 (see FIG. 2), the driver's clothes and the like are in the chamber 19, the connecting portion 20a of the right muffler 20, and the connecting portion of the left muffler 21. It is possible to suppress contact with 21a. Further, as shown in FIGS. 2 and 4, the right cover member 22 is disposed so as to be continuous with the right cover member 25 when viewed from the right side of the vehicle body. Further, as shown in FIGS. 1 and 2, the left cover member 23 is disposed so as to be continuous with the left cover member 26 when viewed from the left side of the vehicle body.

  Specifically, as shown in FIG. 3, a mounting portion 22 a is provided on the inner surface of the right cover member 22. The mounting portion 22a includes a flat plate-like support portion 22b and a cylindrical shaft portion 22c fixed to the support portion 22b. The insertion portion 22d of the shaft portion 22c is formed so as to extend in a direction (arrow B direction) along the direction in which the right muffler 20 extends. And the insertion part 22d of the shaft part 22c is a direction (arrow B direction) along the direction in which the right muffler 20 extends into the insertion hole 30a (see FIG. 5) of the damper 30 provided in the collar part 29c of the right support member 29. ) Is movably inserted. Further, as shown in FIGS. 6 and 9, the outer peripheral surface of the insertion portion 22d of the shaft portion 22c is the inner periphery of the insertion hole 30a of the damper 30 provided in the collar portion 29c of the right support member 29 (see FIG. 6). The surface is in contact with the six convex portions 30c having the irregular shape.

  In the present embodiment, the shaft portion 22c of the attachment portion 22a of the right cover member 22 is formed by bending the insertion portion 22d so as to approach the chamber 19 (see FIG. 4), as shown in FIGS. Has been. That is, the shaft portion 22c of the attachment portion 22a of the right cover member 22 is formed to be bent in a direction away from the inner surface of the right cover member 22, as shown in FIG.

  Further, as shown in FIG. 3, screwing portions 22 e and 22 f that are screwed to the right muffler 20 by screws 50 are provided at the rear end portion of the right cover member 22.

  In the present embodiment, the screwing portions 22e and 22f are configured to be attached to the right muffler 20 after the connection portion 20a of the right muffler 20 is attached to the connection portion 19e of the chamber 19. Specifically, in a state where the right muffler 20 is attached to the connection portion 19e of the chamber 19 by the band member 27, the right cover member 22 is inserted into the insertion hole 30a (see FIG. 5) of the damper 30 provided in the right support member 29. The insertion portion 22d of the shaft portion 22c is inserted. Then, the right cover member 22 is moved in the direction (arrow B direction) along the direction in which the right muffler 20 extends, and the screwing portions 22 e and 22 f are screwed to the right muffler 20 by the screws 50.

  In the present embodiment, as shown in FIGS. 2 and 4, the right cover member 22 is provided with a notch 22g. Thereby, it is possible to suppress the right cover member 20 from coming into contact with the main frame 3 and the fixing member 15 as shown in FIG.

  In the present embodiment, as shown in FIG. 3, a mounting portion 23 a is provided on the inner surface of the left cover member 23 as in the right cover member 22. The attachment portion 23a includes a flat plate-like support portion 23b and a tubular shaft portion 23c fixed to the support portion 23b. The insertion portion 23d of the shaft portion 23c is formed so as to extend in a direction (arrow C direction) along the direction in which the left muffler 21 extends. The insertion portion 23d of the shaft portion 23c is movable in the direction (arrow C direction) along the direction in which the left muffler 21 extends into the insertion hole 30a of the damper 30 provided in the collar portion 31b of the left support member 31. Has been inserted. Further, the outer peripheral surface of the insertion portion 23d of the shaft portion 23c is the inner peripheral surface of the insertion hole 30a of the damper 30 provided in the collar portion 31b of the left support member 31 in the same manner as the outer peripheral surface of the insertion portion 22d of the shaft portion 22c. It is in contact with the six convex portions 30c (see FIG. 9) having an uneven shape.

  In the present embodiment, the shaft portion 23 c of the attachment portion 23 a of the left cover member 23 is formed so that the insertion portion 23 d is bent so as to approach the chamber 19 as shown in FIGS. 2 and 3. That is, the shaft portion 23 c of the attachment portion 23 a of the left cover member 23 is formed to be bent in a direction away from the inner surface of the left cover member 23.

  Further, as shown in FIG. 3, screwing portions 23 e and 23 f that are screwed to the left muffler 21 by screws 50 are provided at the rear end portion of the left cover member 23.

  Further, in the present embodiment, the screwing portions 23e and 23f are arranged on the left side after the connecting portion 21a of the left muffler 21 is attached to the connecting portion 19f of the chamber 19 in the same manner as the screwing portions 22e and 22f of the right cover member 22. It is configured to be attached to the muffler 21. Specifically, in a state where the left muffler 21 is attached to the connection portion 19f of the chamber 19 by the band member 27, the shaft portion 23c of the left cover member 23 is inserted into the insertion hole 30a of the damper 30 provided in the left support member 31. The insertion part 23d is inserted. Then, the left cover member 23 is moved in the direction (arrow C direction) along the direction in which the left muffler 21 extends, and the screwing portions 23 e and 23 f are screwed to the left muffler 21 by the screws 50.

  In the present embodiment, as described above, the mounting portion 22a that is movably attached to the chamber 19 in the direction along the direction in which the right muffler 20 extends (the direction of the arrow B), and the screwing portion that is screwed to the right muffler 20 A right cover member 22 including 22e and 22f, a mounting portion 23a attached to the chamber 19 so as to be movable in the direction along the direction in which the left muffler 21 extends (direction of arrow C), and a screw screwed to the left muffler 21 By providing the left cover member 23 including stop portions 23e and 23f, the right cover member 22 and the right cover member 22 are attached to the right muffler 20 and the left cover member 23 is attached to the left muffler 21. The left cover member 23 is connected to the right muffler 20 and the left muffler 2 respectively. It is possible to directly fixed by screwing to the mounting position accuracy with respect to the right muffler 20 of the right cover member 22, and it is possible to improve the mounting position accuracy with respect to the left muffler 21 of the left cover member 23. The right cover includes a mounting portion 22a attached to the chamber 19 so as to be movable in the direction along the direction in which the right muffler 20 extends (arrow B direction), and screwing portions 22e and 22f screwed to the right muffler 20. By providing the member 22, when the screwing portions 22e and 22f of the right cover member 22 are screwed to the right muffler 20 with the attachment portion 22a of the right cover member 22 attached to the chamber 19, the right cover member 22 is Since the right cover member 22 can be positioned with respect to the right muffler 20 by being moved in a direction along the direction in which the right muffler 20 extends (arrow B direction), the right cover member 22 can be screwed to the right muffler 20. The mounting workability can be improved. The left cover includes a mounting portion 23a attached to the chamber 19 so as to be movable in the direction along the direction in which the left muffler 21 extends (arrow C direction), and screwing portions 23e and 23f screwed to the left muffler 21. By providing the member 23, when the screwing portions 23e and 23f of the left cover member 23 are screwed to the left muffler 21 with the attachment portion 23a of the left cover member 23 attached to the chamber 19, the left cover member 23 is Since the left cover member 23 can be positioned with respect to the left muffler 21 by being moved in a direction along the direction in which the left muffler 21 extends (arrow C direction), the left cover member 23 can be screwed to the left muffler 21. The mounting workability can be improved.

  Further, in the present embodiment, by providing the damper 30 having the insertion hole 30a in the right support member 29 and the left support member 31, respectively, vibration and impact from the chamber 19 can be absorbed by the damper 30. It is possible to suppress the vibration and impact from the chamber 19 from being transmitted to the right cover member 22 and the left cover member 23.

  In the present embodiment, the inner peripheral surface of the insertion hole 30a of the damper 30 is formed in an uneven shape along the circumferential direction, and the uneven portion 30c is formed on the outer peripheral surface of the shaft portion 22c of the right cover member 22. When the inner peripheral surface of the insertion hole 30a of the damper 30 is formed in a circular shape having no uneven shape by forming the contact portion with the outer peripheral surface of the shaft portion 23c of the left cover member 23, respectively. Compared with the shaft portion 22c of the right cover member 22 and the shaft portion 23c of the left cover member 23 and the inner peripheral surface of the insertion hole 30a of the damper 30, the shaft portion of the right cover member 22 can be reduced. The frictional resistance at the time of inserting the shaft portion 23c of the left cover member 23 into the insertion hole 30a of the damper 30 can be reduced. Accordingly, the shaft portion 22c of the right cover member 22 and the shaft portion 23c of the left cover member 23 can be easily inserted into the insertion hole 30a of the damper 30, so that the right cover member 22 and the left cover member 23 can be inserted into the chamber 19. Mounting workability can be improved.

  In the present embodiment, the shaft portion 22c of the right cover member 22 is bent in a direction away from the inner surface of the right cover member 22, and the insertion portion 22d is in a direction along the direction in which the right muffler 20 extends (direction of arrow B). The shaft portion 23c of the left cover member 23 is bent in a direction away from the inner surface of the left cover member 23, and the insertion portion 23d is in a direction along the direction in which the left muffler 21 extends ( When the shaft portion 22c of the right cover member 22 and the shaft portion 23c of the left cover member 23 are attached to the right support member 29 and the left support member 31, respectively, the right cover member 22 is formed so as to extend in the direction of arrow C). The shaft portion 22c can be easily inserted into the insertion hole 30a of the damper 30 attached to the right support member 29. In addition, the shaft portion 23c of the left cover member 23 can be easily inserted into the insertion hole 30a of the damper 30 attached to the left support member 31, so that the right cover member 22 and the left cover member 23 can be attached to the chamber 19. The sex can be further improved.

  Further, in the present embodiment, the right cover member 22 is arranged by arranging the attachment portion 22a of the right cover member 22 and the attachment portion 23a of the left cover member 23 on the inner surface side of the right cover member 22 and the left cover member 23, respectively. The attachment portion 22a of the right side cover member 23 and the attachment portion 23a of the left side cover member 23 can be prevented from being arranged outside, so that the clothes of the driver can be attached to the attachment portion 22a of the right side cover member 22 and the attachment portion of the left side cover member 23. It can suppress that it is caught in 23a.

  In the present embodiment, the right cover member 22 and the left cover member 23 are arranged so as to be continuous with the right cover member 25 and the left cover member 26, respectively, so that the driver's clothes and the like can be Since it is possible to suppress the gap between the right cover member 25 and between the left cover member 23 and the left cover member 26, the driver's clothes and the like are placed in the chamber 19, the right muffler 20, and the left muffler 21. Touching can be suppressed.

  In the present embodiment, the right cover member 22 is formed in the chamber 19 and the right muffler 20 by forming the right cover member 22 with a notch 22g for suppressing contact with the main frame 3 and the fixing member 15. When attaching, the right cover member 22 can be prevented from coming into contact with the main frame 3 and the fixing member 15.

  In this embodiment, the screwing hole 20b of the support part 20c of the right muffler 20 screwed to the rear frame 4 and the screwing hole 21b of the support part 21c of the left muffler 21 are formed long in the horizontal direction. When the right muffler 20 and the left muffler 21 are screwed to the rear frame 4, the right muffler 20 and the left muffler 21 are shifted in the horizontal direction with respect to the rear frame 4. Therefore, the right muffler 20 and the left muffler 21 can be easily attached to the rear frame 4 even when there are variations in processing of parts such as the right muffler 20 and the left muffler 21 and parts mounting variations. it can.

  Further, in the present embodiment, the screwing hole 20b of the support part 20c of the right muffler 20 and the screwing hole 21b of the support part 21c of the left muffler 21 are extended in the direction in which the insertion hole 30a extends (the arrow B direction and the arrow C direction). ) Are movably screwed to the rear frame 4 so that the right muffler 20 and the left muffler 21 are screwed to the rear frame 4 in a state where the right muffler 20 and the left muffler 21 are displaced in the extending direction of the insertion hole 30a (arrow B direction and arrow C direction) When it is stopped, the attachment portion 22a of the right cover member 22 and the attachment portion 23a of the left cover member 23 can be shifted in the direction in which the insertion hole 30a extends (arrow B direction and arrow C direction). Therefore, the processing variation of parts such as the right muffler 20 and the left muffler 21 and the component mounting variation Etc. also easily if occurred, it is possible to attach the right cover member 22 to the right muffler 20 and chamber 19, it can be attached to the left cover member 23 to the left muffler 12 and the chamber 19.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, a motorcycle is shown as an example of a vehicle including a silencer and a cover member attached to the expansion chamber. However, the present invention is not limited thereto, and the silencer and the cover member attached to the expansion chamber are provided. As long as the vehicle is equipped, it can also be applied to other vehicles such as automobiles, bicycles, tricycles, and ATVs (All Terrain Vehicles).

  In the above embodiment, the right cover member is provided on the right side of the vehicle body, and the left cover member is provided on the left side of the vehicle body. However, the present invention is not limited thereto, and the cover is provided only on the right side or left side of the vehicle body. A member may be provided.

  Moreover, in the said embodiment, although the example which provided the cylindrical shaft part in the attaching part was shown, this invention is not restricted to this, You may provide a round bar-shaped axial part in an attaching part.

  In the above embodiment, the concave and convex concave portions and the convex portions on the inner peripheral surface of the damper are shown as being alternately formed at intervals of about 30 ° along the circumferential direction of the inner peripheral surface. However, the present invention is not limited to this, and the concave and convex portions and the convex portions on the inner peripheral surface of the damper may be alternately formed at predetermined intervals other than about 30 ° along the circumferential direction of the inner peripheral surface. Good.

  In the above embodiment, an example in which the support member is provided with a rubber damper having an insertion hole into which the shaft portion is inserted has been described. However, the present invention is not limited thereto, and the shaft portion is inserted into the support member. A member made of a material other than rubber having an insertion hole may be provided.

FIG. 1 is a side view showing the overall structure of a motorcycle according to an embodiment of the present invention. Fig. 2 is a plan view for explaining in detail a structure around a chamber of the motorcycle according to the embodiment shown in Fig. 1. FIG. 2 is a perspective view for explaining in detail a structure around a chamber of the motorcycle according to the embodiment shown in FIG. 1. Fig. 2 is a side view for explaining in detail a structure around a chamber of the motorcycle according to the embodiment shown in Fig. 1. FIG. 2 is a plan view for explaining in detail a structure of a right support member of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a cross-sectional view for explaining in detail the structure of a right cover member of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a front view for explaining in detail a structure of a right support member of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a side view for explaining in detail the structure of a right support member of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a cross-sectional view for explaining in detail the structure of the damper of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a front view for explaining in detail the structure of the damper of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a cross-sectional view for explaining in detail the structure of the damper of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a side view for explaining in detail the structure of a left support member of the motorcycle according to the embodiment shown in FIG. 1. FIG. 2 is a plan view for explaining in detail the structure of a left support member of the motorcycle according to the embodiment shown in FIG. 1.

Explanation of symbols

1 Motorcycle (vehicle)
2 Head pipe (car body)
3 Main frame (car body)
4 Rear frame (car body)
17 Engine 18a, 18b Exhaust pipe 19 Chamber (expansion chamber)
20 Right muffler (silencer)
21 Left muffler (silencer)
20b, 21b Screw fixing hole 22 Right side cover member (first cover member)
23 Left cover member (first cover member)
22a, 23a Mounting portion 22c, 23c Shaft portion 22e, 22f, 23e, 23f Screwing portion 22g Notch portion 25 Right side cover member (second cover member)
26 Left cover member (second cover member)
29 Right support member (support member)
30 damper 30a insertion hole 30c convex part 31 left side support member (support member)

Claims (14)

Engine,
An exhaust pipe connected to the engine;
An expansion chamber connected to the exhaust pipe;
A silencer connected to the expansion chamber;
A mounting portion is disposed so as to cover the periphery of the expansion chamber and the connection portion of the silencer, and includes a mounting portion that is movably attached to the expansion chamber in a predetermined direction, and a screwing portion that is screwed to the silencer. A vehicle comprising one cover member. The attachment portion of the first cover member has a shaft portion made of a round bar shape or a circular tube shape,
The vehicle according to claim 1, wherein the expansion chamber is provided with a support member having an insertion hole into which the shaft portion of the first cover member is inserted so as to be movable in a direction in which the shaft portion extends.   The vehicle according to claim 2, wherein the support member includes a damper having the insertion hole. The inner peripheral surface of the insertion hole of the damper has an uneven shape,
The vehicle according to claim 3, wherein the concavo-convex convex portion is formed so as to contact an outer peripheral surface of the shaft portion of the first cover member.   The vehicle according to claim 2, wherein a portion of the shaft portion that is inserted into the insertion hole of the support member is formed to extend in a direction along a direction in which the silencer extends.   The shaft portion of the first cover member is bent in a direction away from the inner surface of the first cover member, and a portion inserted into the insertion hole of the support member extends along a direction in which the silencer extends. The vehicle according to claim 5, wherein the vehicle is formed to extend.   The vehicle according to claim 1, wherein the attachment portion of the first cover member is attached to the expansion chamber so as to be movable in a direction along a direction in which the silencer extends.   The vehicle according to claim 1, wherein the attachment portion of the first cover member is disposed on an inner surface side of the first cover member.   The vehicle according to claim 1, wherein the first cover member is configured to be attachable to the expansion chamber and the silencer after the silencer is attached to the expansion chamber. A second cover member attached to the expansion chamber;
The vehicle according to claim 1, wherein the first cover member is disposed so as to be continuous with the second cover member. A vehicle body frame,
The vehicle according to claim 1, wherein the first cover member is formed with a notch for suppressing contact with the vehicle body frame. A vehicle body frame to which the silencer is attached;
The vehicle according to claim 1, wherein the silencer has an elongated hole-shaped screw hole that is screwed to the vehicle body frame. The expansion chamber is provided with a support member having an insertion hole extending in the predetermined direction while the attachment portion of the first cover member is inserted to be movable in the predetermined direction.
The vehicle according to claim 12, wherein the screw hole having the elongated hole shape of the silencer is screwed to the vehicle body frame so as to be movable in the predetermined direction in which the insertion hole extends.   The vehicle according to claim 13, wherein the support member includes a damper having the insertion hole.

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