JP6712484B2 - Frame structure of saddle type vehicle - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure for a saddle riding type vehicle in which an accessory is attached to a vehicle body frame of the saddle riding type vehicle.

2. Description of the Related Art There is a saddle-ride type vehicle such as a motorcycle in which an accessory is attached to a body frame that supports an engine as a drive source (for example, Patent Document 1). In Patent Document 1, an engine guard is attached as an accessory.

JP, 2002-356189, A

In Patent Document 1 described above, a mount is provided to firmly attach the accessory, and the accessory is attached to the vehicle body frame via the mount. With such a configuration, the number of parts increases and the weight of the vehicle body frame also increases.

It is an object of the present invention to provide a frame structure for a saddle-ride type vehicle in which accessory parts can be stably attached while suppressing an increase in the weight of the vehicle body frame.

In order to achieve the above object, the frame structure of a saddle-ride type vehicle according to the present invention includes a drive source mount for a drive source mount provided on a vehicle body frame of the saddle-ride type vehicle, and a mount portion of the drive source being a fastening member. In the frame structure, the drive source support portion has a recess opening to the outside, and a mounting auxiliary member having a mounting portion for an accessory is attached to the recess. The drive source support portion is, for example, a cylindrical pipe. Here, the "accessory component" is not a component that is standardly installed in the vehicle, but an accessory that the user selectively adds, for example, a design component that changes the appearance of the vehicle according to the user's preference.

According to this structure, since the attachment auxiliary member is attached to the strong frame portion to which the drive source is attached, the attachment auxiliary member can be firmly supported. Therefore, the accessory can be stably attached to the vehicle body frame. Further, since the existing drive source support portion for the drive source mount is used as the attachment portion for the accessory, it is not necessary to separately provide the attachment portion for the accessory to the body frame, and the weight of the body frame increases. Can be suppressed. As described above, since it is not necessary to separately provide a mounting portion, the number of parts can be reduced. As a result, the attachment work of the accessory can be simplified and the cost for attaching the accessory can be reduced.

In the present invention, it is preferable that the mounting portion is arranged on the outer side in the vehicle width direction with respect to the outer end of the drive source support portion. With this configuration, even when the mounting portion cannot be provided in the space because the space inside the recess is narrow, the mounting auxiliary member can dispose the mounting portion outside the recess in the vehicle width direction. .. Further, since the mounting portion can be accessed from the outside in the vehicle width direction, it becomes easy to attach the accessory to the mounting portion.

In the present invention, the operation portion of the fastening member is exposed in the recess, and the attachment assisting member has a body portion inserted into the recess and an end wall having the attachment portion formed therein. Is preferred. According to this configuration, since the mounting auxiliary member is attached so as to cover the operating portion of the fastening member exposed to the outside, the exposure of the operating portion is suppressed, and the degree of freedom in designing the appearance of the operating portion is reduced. improves. In this case, it is preferable that the attachment portion is arranged to face the operation portion and the fastening member in the axial direction. According to this configuration, it is possible to attach the attachment auxiliary member while preventing interference with the operation portion.

In the present invention, it is preferable that the attachment auxiliary member is fixed to the drive source support portion by a fixing member that is fastened in a direction orthogonal to the axial direction of the fastening member. According to this configuration, the fixing member is fastened in the direction orthogonal to the axial direction of the fastening member, that is, in the radial direction of the fastening member, so that the mounting auxiliary member is less likely to interfere with the fastening member and the fixing member, and the mounting auxiliary member is less likely to interfere. Is easy to fix. Moreover, since the fixing member is orthogonal to the fastening member, it is not easily affected by the rotation of the fastening member, and the mounting auxiliary member can be firmly fixed.

In the present invention, it is preferable that the mounting portion of the mounting auxiliary member includes a screw hole. According to this configuration, since the accessory can be attached to the attachment portion using the screw body, the attachment of the accessory is easy. In this case, it is preferable that a cover member is attached to the outer side of the accessory. According to this configuration, the screw member for attaching the accessory can be hidden by the cover member, so that the appearance of the vehicle is improved.

In the present invention, it is preferable that an elastic member is arranged between the outer peripheral surface of the attachment assisting member and the inner peripheral surface of the drive source support portion. According to this structure, the elastic member absorbs the rattling of the attachment assisting member, and foreign matter such as rainwater, water used for washing the vehicle, and dust enters through the gap between the attachment assisting member and the drive source support portion. It is easy to prevent

A mounting structure for an accessory of a straddle-type vehicle according to the present invention is a structure for mounting an accessory to a vehicle body frame of a saddle-ride type vehicle, wherein a drive source support portion for a drive source mount provided on the body frame is provided. A mount portion of the drive source is connected by a fastening member, the drive source support portion has a recess opening to the outside, and a mounting auxiliary member having a mounting portion for the accessory is mounted in the recess, The mounting portion is disposed on the outer side in the vehicle width direction with respect to the outer end of the drive source support portion, the operating portion of the fastening member is exposed in the recess, and the mounting auxiliary member is provided between the operating portion and the fastening member. They are arranged so as to face each other in the axial direction.

According to this structure, since the attachment auxiliary member is attached to the strong frame portion to which the drive source is attached, the attachment auxiliary member can be firmly supported. Therefore, the accessory can be stably attached to the vehicle body frame. Further, since the drive source support portion for mounting the drive source is used as the attachment portion for the accessory, it is not necessary to separately provide the attachment portion for the accessory to the body frame, and the increase in the weight of the body frame is suppressed. it can. Further, even when the mounting portion cannot be provided in the space because the space inside the recess is narrow, the mounting auxiliary member can dispose the mounting portion outside the recess in the vehicle width direction. Moreover, since the body portion of the attachment assisting member and the operation portion of the fastening member are arranged to face each other in the axial direction of the fastening member, the attachment assistance member does not interfere with the operation portion.

According to the frame structure of the straddle-type vehicle and the attachment structure of the accessory of the present invention, it is possible to stably attach the accessory to the body frame while suppressing an increase in the weight of the body frame.

FIG. 1 is a side view showing a motorcycle which is a kind of saddle-ride type vehicle including the frame structure according to the first embodiment of the present invention. FIG. 3 is a plan view showing a front portion of a body frame of the motorcycle. It is a top view showing a design part attachment part of the body frame. It is a disassembled perspective view which shows the attachment structure of an agreed design part. It is sectional drawing which shows the attachment structure of an agreed design part.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the present specification, “left side” and “right side” refer to the left and right sides as seen by the driver who gets in the vehicle.

FIG. 1 is a side view of a motorcycle having a frame structure according to an embodiment of the present invention. A vehicle body frame FR of this motorcycle includes a main frame 1 forming a front half and a rear frame 2 forming a rear half. And have. The main frame 1 includes a first main frame piece 1a extending obliquely rearward and downward from an upper portion of a head pipe 4 provided at a front end, and a main frame 1 arranged below the first main frame piece 1a and obliquely rearward and downward from a lower portion of the head pipe 4. It has a second main frame piece 1b extending to the left and a reinforcement pipe 1c connecting the intermediate portions of the first and second main frame pieces 1a, 1b. The first main frame piece 1a is connected to a cross member 1d extending in the vehicle width direction at the rear part.

The rear frame 2 has a seat rail 2a extending rearward from the cross member 1d, and a front end connected to a rear end of the first main frame piece 1a. The rear frame 2 extends rearward and obliquely upward and is connected to a lower surface of the seat rail 2a. And the reinforcing rail 2b. A pair of left and right seat rails 2a and reinforcing rails 2b are also provided.

A front fork 8 is rotatably supported on the head pipe 4 via a steering shaft (not shown). A steering handle 6 is fixed to the upper end of the front fork 8, and a front wheel 10 is attached to the lower end of the front fork 8. A swing arm bracket 9 is provided at the rear end of the main frame 1. A swing arm 12 is pivotally supported around a pivot shaft 16 attached to the swing arm bracket 9 so as to be vertically swingable. A rear wheel 14 is rotatably supported at the rear end of the swing arm 12.

A fuel tank 15 is arranged above the first main frame piece 1a of the main frame 1, and a rider seat 18 and a passenger seat 20 are supported by a seat rail 2a of the rear frame 2.

An engine E, which is a drive source, is attached to the front side of the swing arm bracket 9 below the first main frame 1a. The engine E drives the rear wheels 14 via a power transmission member 11 such as a chain. The engine E includes a crankcase 21 that supports the crankshaft 22, a cylinder 23 connected to the upper portion of the crankcase 21, and a cylinder head 25 connected to the upper portion of the cylinder 23.

As shown in FIG. 2, a pair of left and right first main frame pieces 1a, second main frame pieces 1b, and reinforcing pipes 1c are provided. The distance between the pair of left and right main frame pieces 1a, 1a in the vehicle width direction gradually increases from the head pipe 4 to the rear in the front half, and is substantially constant in the middle to the rear half. The rear portions of the left and right main frame pieces 1a, 1a are connected by the cross member 1d extending in the vehicle width direction.

The engine E is arranged between the left and right main frame pieces 1a, 1a in a plan view. As shown in FIG. 1, the engine E is supported by the first to third mount parts M1 to M3 on the first to third engine support parts S1 to S3 of the vehicle body frame FR, respectively. The first to third engine support portions S1 to S3 are drive source support portions for mounting the drive source of the vehicle.

Specifically, the left and right second main frame pieces 1b, 1b extend rearward and obliquely downward from the head pipe 4, and their lower ends are located in front of the cylinder 23 of the engine E. A first engine support portion S1 is provided at the lower end of the second main frame piece 1b. The first engine support portion S1 includes a cylindrical pipe 26 and is fixed to the second main frame pieces 1b and 1b by welding. A first mount portion M1 protruding forward is formed at the front of the cylinder 23 of the engine E, and the first mount portion M1 is connected to the first engine support portion S1 by a first fastening member F1 such as a bolt. Has been done.

Further, a second engine support portion S2 protruding downward is provided on the lower surface of the cross member 1d. The second engine support portion S2 is composed of a pair of left and right projecting pieces made of sheet metal, and is fixed to the lower surface of the cross member 1d by welding. A second mount portion M2 protruding upward is formed on an upper portion of a rear portion of the crankcase 21 of the engine E, and the second mount member M2 is attached to the second engine support portion S2 by a second fastening member F2 such as a bolt. Are connected.

Further, a third engine support S3 made of sheet metal is provided below the left and right swing arm brackets 9 and extends forward. The third engine support portion S3 is fixed to the swing arm bracket 9 by welding. A third mount portion M3 protruding rearward is formed in a lower portion of the rear portion of the crankcase 21 of the engine E, and the third mount member M3 is attached to the third engine support portion S3 by a third fastening member F3 such as a bolt. Are connected.

A design component 30, which is a kind of accessory, is attached to the left and right first engine support portions S1 of the body frame FR. Here, the "accessory part" does not mean a part that is standardly installed in the vehicle, but an accessory that the user selectively adds. The design component 30 is a component that changes the appearance of the vehicle according to the taste of the user. The design component 30 is arranged behind the handle 6, below the fuel tank 15, and below the front of the rider seat 18. Details of the structure of the design component 30 will be described later.

As shown in FIG. 3, the design component 30 is attached to the first engine support portion S1 via the attachment auxiliary member 32. Specifically, as shown in FIG. 4, the first engine support portion S1 formed of the cylindrical pipe 26 has a recess 34 that is open to the outside, and the mounting auxiliary member 32 is mounted in this recess 34. Has been. In this recess 34, the operation portion 35 of the first fastening member F1 is exposed to the outside. The operation portion 35 is a hexagonal head portion of a bolt in this embodiment.

The attachment assisting member 32 has a cylindrical body portion 36 that is inserted into the recess 34, and an end wall 38 that is arranged outside the recess 34. As shown in FIG. 5, the body portion 36 has a cylindrical shape having an axis in the vehicle width direction, and the end wall 38 constitutes one end wall that closes the opening of the cylindrical body portion 36 on the vehicle width direction outer side. The outer diameter of the end wall 38 is larger than the outer diameter of the body portion 36. Specifically, the outer diameter of the body portion 36 is substantially the same as the inner diameter of the cylindrical pipe 26 of the first engine support portion S1, and the outer diameter of the end wall 38 is substantially the same as the outer diameter of the cylindrical pipe 26. Further, the height of the body portion 36 (the length in the axial center AX direction) is larger than the height of the end wall 38. In this way, by lengthening the body portion 36 inserted into the recess 34, the support of the design component 30 is stabilized.

An annular groove 40, which is recessed on the inner diameter side of the body portion 36, is formed in a portion of the outer peripheral surface of the body portion 36 that is connected to the end wall 38. An O-ring 42, which is a kind of elastic member, is fitted into the annular groove 40. That is, the elastic member is arranged between the outer peripheral surface of the body portion 36 of the attachment auxiliary member 32 and the inner peripheral surface of the cylindrical pipe 26 of the first engine support portion S1. In the present embodiment, the cross-sectional shape of the elastic member 42 is elliptical, but it may be X-shaped or I-shaped. The X shape makes contact at two points, so that the infiltration of foreign matter can be effectively suppressed. With the I-shape, the contact area becomes large, so that infiltration of foreign matter can be suppressed more effectively.

Plural (two in the present embodiment) bolt insertion holes 44 are formed in a portion of the peripheral wall of the cylindrical pipe 26 of the first engine support portion S1 on the outer side in the vehicle width direction. A screw hole 46 is formed at a position corresponding to the bolt insertion hole 44 on the peripheral wall of the body portion 36 of the attachment auxiliary member 32. The bolt insertion hole 44 and the screw hole 46 are opened in a direction orthogonal to the axis AX of the first fastening member F1.

With the body portion 36 of the attachment assisting member 32 inserted in the recess 34 of the first engine support portion S1, a fixing member 50 such as a bolt is inserted through the spacer 48 into the bolt insertion hole 44, and a screw is inserted. It is fastened to the hole 46. That is, the attachment auxiliary member 32 is fixed to the first engine support portion S1 by the fixing member 50 that is fastened in the direction orthogonal to the axial direction AX of the first fastening member F1. In this embodiment, as is apparent from FIG. 3, the attachment auxiliary member 32 is fixed by the two fixing members 50, but the number of the fixing members 50 may be one, or may be three or more. Good. In addition, in the present embodiment, the two fixing members 50 are arranged in a portion of the cylindrical pipe 26 of the first engine support portion S1 below a surface orthogonal to the vertical direction. This makes it difficult for the rider to visually recognize the fixing member 50.

As shown in FIG. 5, with the attachment assisting member 32 fixed to the first engine support portion S1, the operating portion 35 of the first fastening member F1 is placed inside the cylindrical body portion 36 of the attachment assisting member 32. positioned. That is, the end wall 38 of the attachment auxiliary member 32 faces the operation portion 35 of the first fastening member F1 in the axial direction AX of the first fastening member F1. A mounting portion 52 is formed on the end wall 38 of the mounting auxiliary member 32. In the present embodiment, the mounting portion 52 includes the screw hole 52. Specifically, the end wall 38 has a columnar shape, and a screw hole 52 is formed in the center of the cylinder. In this way, since it is cylindrical and the screw hole 52 is formed at the center, it is easy to manufacture with a lathe.

With this arrangement, the mounting portion 52 is located outside the outer end of the first engine support portion S1 in the vehicle width direction, and the operating portion 35 of the first fastening member F1 and the axial center direction of the first fastening member F1. It faces AX.

As shown in FIG. 4, the design component 30 has a main body portion 54 that is long in the front-rear direction, and a cylindrical boss portion 56 that protrudes inward from the main body portion 54 in the vehicle width direction. In the side view, the main body portion 54 gradually decreases in vertical dimension toward the rear. A bolt insertion hole 58 extending in the vehicle width direction is formed in a portion corresponding to the boss portion 56 in the front portion of the main body portion 54. As shown in FIG. 5, the bolt insertion hole 58 extends from the main body portion 54 through the boss portion 56 in the vehicle width direction.

As shown in FIG. 4, a first cover mounting hole 60 and a second cover mounting hole 62 facing the vehicle width direction are formed side by side in the front-rear direction behind the bolt insertion hole 58 in the main body 54. A cover member 64 is attached to the outer surface of the design component 30. The cover member 64 is made of a plate material and has a shape that substantially conforms to the outer shape of the design component 30 in a side view.

Well nuts 66, 66 made of rubber are inserted into the first and second cover mounting holes 60, 62 of the designed component 30 from the outside in the vehicle width direction. Further, the screw bodies 68, 68 are inserted into the two through holes 64a, 64a formed in the cover member 64 from the vehicle width direction outer side, and are fastened to the well nuts 66, 66. As a result, the well nuts 66, 66 expand in the radial direction and are pressed against the inner surfaces of the first and second cover mounting holes 60, 62, so that the cover member 64 is mounted on the design component 30.

Next, the mounting structure of the design component 30 will be described. As shown in FIG. 4, the first engine support portion S1 is fastened to the first mount portion M1 by the first fastening member F1 via the cylindrical collar 70 through which the first fastening member F1 is inserted. Here, an adjuster member 72 for inserting the first fastening member F1 is interposed between the collar 70 and the operating portion 35 of the first fastening member F1. The adjuster member 72 is screwed into the screw hole 76 of the first engine support portion S1 and is fixed to the first engine support portion S1 by the rotation stop nut 78.

More specifically, an annular flange portion 75 protruding radially inward is formed on the inner peripheral surface of the cylindrical pipe 26 of the first engine support portion S1 toward the inner side in the vehicle width direction, and the inner peripheral surface of the flange portion 75 is formed. The screw hole 76 is formed in the. The adjuster member 72 is cylindrical and has a screw portion 72a formed on the outer peripheral surface thereof, and the screw portion 72a is screwed into the screw hole 76 of the first engine support portion S1.

The first fastening member F1 is inserted into the adjuster member 72, the collar 70, and the insertion hole 80 of the first mount portion M1 of the engine E from the vehicle width direction outer side. In this state, the adjuster member 72 is rotated to position the first mount portion M1 (engine E) with respect to the first engine support portion S1 (vehicle body frame FR) in the vehicle width direction. Subsequently, the detent nut 78 is screwed into the screw portion 72a of the adjuster member 72 to fix the position of the adjuster member 72.

The nut 84 is fastened to the tip of the threaded portion 82 of the first fastening member F1 protruding from the first mount portion M1 while being positioned and fixed by the adjuster member 72 and the detent nut 78. The adjuster member 72, the collar 70, and the first mount portion M1 of the engine E are sandwiched between the operating portion 35 of the first fastening member F1 and the nut 84, and the fastening force of the nut 84 is applied to these portions 72, 70. , M1. As a result, the first mount portion M1 of the engine E is firmly supported by the first engine support portion S1 of the vehicle body frame FR.

It should be noted that positioning of the first mount portion M1 (engine E) in the vehicle width direction with respect to the first engine support portion S1 (body frame FR) is sufficient if only one of the left and right first engine support portions S1 is performed. Therefore, the adjuster member 72 is provided only on the first engine support portion S1 on one side. In the present embodiment, the adjuster member 72 is provided on the right first engine support portion S1. The adjuster member 72 and the detent nut 78 are not provided on the first engine support portion S1 on the left side, and the first engine support portion S1 is provided between the operation portion 35 of the first fastening member F1 and the nut 84. The collar portion 75, the collar 70, and the first mount portion M1 of the engine E are sandwiched, and the fastening force of the nut 84 acts on these portions 75, 70, M1.

Subsequently, the design component 30 is attached to the first engine support portion S1 via the attachment auxiliary member 32. Specifically, first, the attachment assisting member 32 is fixed to the first engine support portion S1 using the fixing member 50 such as a bolt in the procedure described above.

Next, the vehicle width direction inner end surface 56 a of the boss portion 56 of the design component 30 is brought into contact with the vehicle width direction outer end surface 38 a of the end wall 38 of the attachment auxiliary member 32, and the vehicle width is set via the washer 85. The bolt 86 is inserted into the bolt insertion hole 58 of the design component 30 from the outside in the direction, and is tightened in the screw hole 52 that is the attachment portion of the attachment auxiliary member 32. As a result, the washer 85 and the boss portion 56 of the design component 30 are sandwiched between the head 86a of the bolt 86 and the end wall 38, and the design component 30 is attached to the first engine support S1. Finally, the cover member 64 shown in FIG. 4 is attached to the design component 30 by the procedure described above.

In this way, the design component 30 can be mounted without operating the components of the existing motorcycle at all, so the work of mounting the design component 30 is simple. Further, since existing parts are not loosened or removed, errors in tightening torque of bolts of parts and parts related to their attachment and human errors such as forgetting to attach parts do not occur.

According to the above configuration, since the attachment assisting member 32 is attached to the strong frame portion to which the engine E is attached, the attachment assisting member 32 can be firmly supported. Therefore, the design component 30 can be stably attached to the vehicle body frame FR. Further, since the existing first engine support portion S1 for mounting the engine is used as a mounting portion for the design component 30, it is not necessary to separately provide a mounting portion dedicated to the design component 30 on the vehicle body frame FR. As a result, it is possible to suppress an increase in the weight of the body frame FR. As described above, since it is not necessary to separately provide a mounting portion, the number of parts can be reduced. As a result, the attachment work of the accessory can be simplified and the cost for attaching the accessory can be reduced.

As shown in FIG. 5, the attachment portion 52 is arranged outside the outer end of the first engine support portion S1 in the vehicle width direction. As a result, even when the mounting portion 52 cannot be provided in the space because the space inside the recess 34 is narrow, the mounting auxiliary member 32 disposes the mounting portion 52 outside the recess 34 in the vehicle width direction. be able to. In particular, in the first engine support portion S1 on the right side, the adjuster member 72 is disposed in the recess 34, and it is difficult to secure a space for disposing the component mounting portion in the recess 34. By disposing the attachment portion 52 on the outer side of the first engine support portion S1, it is possible to attach the design component 30 to the first engine support portion S1 without increasing the size of the first engine support portion S1. .. Further, since the mounting portion 52 can be accessed from the outside in the vehicle width direction, the design component 30 can be easily mounted to the mounting portion 52.

The operation portion 35 of the first fastening member F1 is exposed in the recess 34 shown in FIG. 4, and the attachment assisting member 32 has a body portion 36 to be inserted into the recess 34 and an attachment portion 52. End wall 38. As a result, the attachment assisting member 32 is attached so as to cover the operation portion 35 of the first fastening member F1 exposed to the outside, so that the exposure of the operation portion 35 is suppressed and the appearance of the operation portion 35 can be freely designed. The degree improves.

As shown in FIG. 5, the operating portion 35 of the first fastening member F1 is disposed inside the cylindrical body portion 36, and the end wall 38 and the operating portion 35 of the first fastening member F1 are connected to the shaft of the first fastening member F1. It is arranged so as to face the axial direction AX. As a result, the attachment assisting member 32 can be attached to the first engine support portion S1 while preventing interference with the operation portion 35 of the first fastening member F1.

The attachment assisting member 32 is fixed to the first engine support portion S1 by a fixing member 50 that is fastened in a direction orthogonal to the axial direction AX of the first fastening member F1. As a result, the fixing member 50 is fastened in the direction orthogonal to the axial direction AX of the first fastening member F1, that is, in the radial direction of the first fastening member F1, so that the first attachment assisting member 32 is fastened to the fastening member F1 or the fastening member F1. It is difficult to interfere with the member 50 and the attachment auxiliary member 32 can be fixed easily. Moreover, since the fixing member 50 is orthogonal to the first fastening member F1, it is unlikely to be affected by the rotation of the first fastening member F1, and the attachment auxiliary member 32 can be firmly fixed.

Since the attachment portion 52 of the attachment auxiliary member 32 has the screw hole, the design component 30 can be attached to the attachment portion 52 using the bolt 86. Therefore, the design component 30 can be easily attached. Further, a cover member 64 is attached to the outside of the design component 30. Therefore, since the bolt 86 can be hidden by the cover member 64, the appearance of the vehicle is improved.

Further, the O-ring 40 is arranged between the outer peripheral surface of the attachment assisting member 32 and the inner peripheral surface of the cylindrical pipe 26 of the first fastening member F1. As a result, rattling of the attachment assisting member 32 is absorbed, and in addition, it is easy to prevent foreign matter such as rainwater, car wash water, and dust from entering through the gap between the attachment assisting member 32 and the first fastening member F1. ..

The present invention is not limited to the above embodiments, and various additions, changes or deletions can be made without departing from the scope of the present invention. In the above-described embodiment, the design component 30 is used as an accessory component, but the accessory component is not limited to this. The accessory parts also include decorative parts that prevent the vehicle from being exposed to the outside, bosses for mounting parts that are standard equipment on the vehicle (for example, cowlings), and the like. Further, although the above embodiment describes the motorcycle, the present invention is also applicable to a straddle-type vehicle other than the motorcycle, for example, a three-wheeled vehicle, a four-wheel buggy (ATV), or the like. Further, although the engine E is used as the drive source in the above embodiment, an electric motor may be used. Therefore, such is also included in the scope of the present invention.

30 Design parts (accessory parts)
32 Attachment Auxiliary Member 34 Recess 35 First Fastening Member Operation Section 36 Body 38 End Wall 42 O-Ring (Elastic Member)
50 bolts (fixing member)
52 Mounting part (screw hole)
64 Cover member E Engine (drive source)
F1 1st fastening member FR Body frame M1 1st mount part S1 1st engine support part (driving source support part)

Claims (9)

A frame structure in which a mount portion of a drive source is connected by a fastening member to a drive source support portion for a drive source mount provided on a vehicle body frame of a saddle type vehicle,
The drive source support portion has a recess opening to the outside,
An attachment auxiliary member having an attachment portion for an accessory is attached to the recess,
The operation portion of the fastening member is exposed in the recess,
The attachment auxiliary member has a tubular body portion that is inserted into the recess,
A frame structure for a saddle-ride type vehicle in which the operation portion of the fastening member is located inside the body portion . The frame structure according to claim 1, wherein the mounting portion is arranged on an outer side in a vehicle width direction with respect to an outer end of the drive source support portion. In the frame structure according to claim 1 or 2, before Symbol mounting assisting member further frame structure of a straddle-type vehicle having an end wall in which the mounting portion is formed. The frame structure according to claim 3, wherein the mounting portion is arranged to face the operation portion and the fastening member in the axial direction. The frame structure according to any one of claims 1 to 4, wherein the attachment auxiliary member is fixed to the drive source support portion by a fixing member that is fastened in a direction orthogonal to an axial direction of the fastening member. Frame structure of a saddle type vehicle. The frame structure according to any one of claims 1 to 5, wherein the mounting portion of the mounting auxiliary member includes a screw hole. The frame structure according to claim 6, wherein a cover member is attached to an outer side of the accessory part. The frame structure according to any one of claims 1 to 7, wherein an elastic member is arranged between an outer peripheral surface of the mounting auxiliary member and an inner peripheral surface of the drive source support portion. Frame structure. A structure for attaching accessory parts to a vehicle body frame of a saddle type vehicle,
The drive source mount for the drive source mounted on the vehicle body frame, the mount portion of the drive source is connected by a fastening member,
The drive source support portion has a recess opening to the outside,
An attachment auxiliary member having an attachment portion for the accessory is attached to the recess,
The mounting portion is arranged outside the outer end of the drive source support portion in the vehicle width direction,
The operation portion of the fastening member is exposed in the recess,
The attachment auxiliary member is arranged to face the operation portion and the fastening member in the axial direction,
The attachment auxiliary member has a tubular body portion that is inserted into the recess,
The attachment structure for an accessory of a saddle-ride type vehicle , wherein the operation portion of the fastening member is located inside the body portion .

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