JP4391931B2 - Motorcycle seat support structure - Google Patents

Description

  The present invention relates to an improvement in a seat support structure for a motorcycle.

2. Description of the Related Art As a conventional motorcycle seat support structure, a structure that receives a load acting on a seat by supporting an attachment piece provided at a lower portion of the seat with a support bolt provided on the seat rail side is known (for example, Patent Document 1). reference.).
JP 2002-284075 A

3 and 5 of Patent Document 1, a mounting piece 32 is extended downward from substantially the center in the front-rear direction of the bottom plate 31 of the seat S, and a bracket 35 is attached to the rail frame 16 of the seat rail 11 provided at the rear portion of the vehicle body frame. The support bolt 36 is attached, a long hole 33 is formed in the lower portion of the attachment piece 32, and the support bolt 36 is inserted into the long hole 33, so that the load acting on the sheet S is supported via the attachment piece 32. The structure supported by is described.
The sheet S can move up and down in the range of the gap between the long hole 33 and the support bolt 36.

For example, the sinking of the seat S by the driver seated on the front portion of the seat S is regulated by the mounting piece 32 and the support bolt 36, but the seat S sinking by the passenger sitting on the rear portion of the seat S. On the other hand, this is not taken into account in the motorcycle described above, and when the load acting on the rear portion of the seat S is large, the sinking of the rear portion of the seat S may be excessive. In view of such large sinking, for example, if the gap between the seat S and the rear cowl disposed below the seat S is set large, the gap is conspicuous and the appearance is deteriorated.
An object of the present invention is to regulate the sinking of the rear portion of the seat by improving the seat support structure of the motorcycle.

According to a first aspect of the present invention, there is provided a motorcycle configured to receive a seat load acting on a seat with a cross member attached to the rear portions of the left and right seat rails, and behind the first load receiver provided on the cross member. Then, the cross member is raised to form an upright portion, a second load receiver is provided on the upright portion , an insertion portion is formed to project from the lower portion of the seat, and an engagement portion that engages with the insertion portion is formed on the cross member. The engaging portion is provided with a gate-shaped hook on the cross member, and a rubber is disposed below the hook .

A load acting on the seat is supported by a first load receiver provided on the cross member and a second load receiver of an upright portion formed by raising the cross member behind the first load receiver.
In particular, in the second load receiving and supporting a seat load due to a passenger who rides in the rear of the seat, REDUCE sinking rear seat.

  When the insertion part protrudingly formed at the lower part of the seat is engaged with the engagement part provided on the cross member, the insertion part does not directly hit the cross member by the rubber, and a buffering effect is exhibited.

The invention according to claim 2 is characterized in that a regulator is provided on the back surface of the upright portion.
The heat generated in the regulator is transferred to the upright portion and radiated from the regulator itself and the upright portion.

The invention according to claim 3 is characterized in that a grab rail is attached to the cross member, and a third load receiver is provided on the grab rail.
When the grab rails are attached to both sides of the cross member, the interval between the third load receivers provided on the left and right sides of the grab rail can be increased. If the interval between the third load receivers is increased, the left / right inclination of the seat can be suppressed accordingly.

The invention according to claim 4 is characterized in that the second load receiver is formed in a plate shape by bending the upper end of the upright portion.

  In the invention according to claim 1, since the second load receiver is provided in the upright portion formed behind the first load receiver, the load acting on the seat when the driver and the passenger sit on the seat. Can be received by the first load receiver and the second load receiver, and in particular, sinking of the rear portion of the seat can be suppressed by the second load receiver. Further, considering the sinking of the seat, for example, it is not necessary to provide a large gap between the seat and the vehicle body cover, and the appearance of the rear portion of the vehicle can be improved.

Also , an insertion part protruding from the lower part of the seat and an engagement part that engages with the insertion part are provided, and a gate-shaped hook is provided on the cross member, and a rubber is provided below the hook. Since it arrange | positions, in an engaging part, the insertion part under a sheet | seat and a cross member do not directly contact with a rubber | gum, and it can improve riding comfort.

In the invention according to claim 2 , since the regulator is provided on the back surface of the upright portion, the upright portion can promote heat radiation from the regulator, and the performance of the regulator can be maintained.

In the invention according to claim 3 , since the grab rail is attached to the cross member and the third load receiver is provided on the grab rail, the left and right spans of the third load receiver can be increased, and the left and right sides of the seat can be increased. The inclination of can be suppressed.

In the invention which concerns on Claim 4, the 2nd load receiver was formed in plate shape by bending the upper end of a standing part.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a motorcycle according to the present invention. The motorcycle 10 improves a handle stopper mechanism that regulates the steering angle of the bar handle 11 and protects a handle lock device that locks the steering of the bar handle 11. The function is improved, the appearance around the front cowl 12 is enhanced, the volume of the storage box 14 provided below the fuel tank 13 is increased, and the appearance around the storage box 14 is enhanced. This is a vehicle characterized by suppressing the sinking when the vehicle is seated and increasing the degree of freedom in the arrangement of the helmet holder 18 attached to the rear side of the body frame 17.

  The motorcycle 10 includes a body frame 17 having a head pipe 21 constituting a front end, a main frame 22 extending obliquely downward and rearward from the head pipe 21, and a pair of left and right extending rearward from a rear end portion of the main frame 22. Seat rails 23 and 24 (only the reference numeral 23 on the front side is shown), a pair of left and right down frames 26 and 27 extending substantially downward and rearward from the front end portion of the main frame 22, and obliquely rearward from the rear portion of the main frame 22. A pair of left and right center frames 28 and 31 (only reference numeral 28 shown on the front side) connected to the rear ends of the down frames 26 and 27 by extending downward and downward, the seat rails 23 and 24 and the center frame 28, A pair of left and right subframes 32 and 33 (only the reference numeral 32 on the front side is shown) passed to each of 31. A front fork 36 is rotatably attached to the head pipe 21, a fuel tank 13 is attached to the main frame 22, and a pair of left and right pivot plates 37, 38 attached to the center frames 28, 31 (only the reference numeral 37 on the front side) The rear side guard member which supports the power unit 43 including the engine 41 and the transmission 42 and supports the swing arm 45 so as to be swingable up and down, and is provided on the left side of the seat 16 and the rear side with the seat rails 23 and 24. 46 is a vehicle that supports 46.

  The front fork 36 is formed by connecting a pair of left and right forks 51 and 52 (only the reference numeral 51 on the front side) by a top bridge 53 and a bottom bridge 54 disposed below the top bridge 53. The bar handle 11 and the handle lock device 56 are attached to the top bridge 53 and the bottom bridge 54. A cowl support stay 57 is attached to the top bridge 53 and the bottom bridge 54. The cowl support stay 57 supports the front cowl 12, and the meter 58, inner cowl 61, turn signal. The support stay 62 and the front license plate 63 are supported.

  Here, 65 is a headlamp attached to the front cowl 12, 66 and 67 (only the reference numeral 66 on the front side) is a pair of left and right front winkers attached to the left and right of the winker support stay 62, and 68 is a lower end of the front fork 36. Reference numeral 71 denotes a front fender that covers the upper portion of the front wheel 68.

  The storage box 14 is located between the main frame 22 and the cylinder portion 73 of the engine 41 and is attached to the lower portion of the main frame 22 via a bracket 74, and closes the case 76 having an opening and the opening. The lower part of the fuel tank 13 is covered with an extension 78 extending rearward from the case 76, and further, both sides are covered with a left cover 81 and a right cover (not shown), respectively. .

  The seat 16 has an insertion portion provided in the lower rear portion engaged with an engagement portion on the seat rail 23, 24 side, and a pair of left and right mounting pieces 85, 86 (only the reference numeral 85 on the front side is shown). ) Is bolted to the seat rails 23 and 24 side. Reference numeral 87 denotes a grab rail attached to the rear part of the seat rails 23 and 24.

  The helmet holder 18 is attached to the upper part of the rear side guard member 46, and is a lockable member considering the arrangement so as not to obstruct the feet of the passengers riding on the rear part of the seat 16. Reference numerals 91 and 92 (only the reference numeral 91 on the front side are shown) are bar members extending rearward and obliquely downward from the subframes 32 and 33, and steps 93 and 94 for passengers seated on the rear portion of the seat 16 at the lower ends. (Only the front side reference numeral 93 is shown) is attached, and is connected to the lower part of the rear side guard member 46 via a frame side stay 96.

The engine 41 is obtained by attaching an intake device 102 and an exhaust device 103 to a cylinder head 101 provided in a cylinder portion 73.
The intake device 102 includes a carburetor 106, which is a fuel supply device connected to the upper portion of the cylinder head 101 via an intake pipe 105, and an air cleaner 108 connected to the carburetor 106 via a connecting tube 107. It is arranged in a space surrounded by the seat rails 23 and 24, the center frames 28 and 31 and the sub frames 32 and 33. Needless to say, the carburetor 106 may be an injector or a throttle body of a fuel injection device.

  Here, 111 is an air inlet of the air cleaner 108, 112 is a throttle cable extending from a throttle grip (not shown) provided on the bar handle 11 to the carburetor 106, and 113 is extended from a clutch lever provided on the bar handle 11 to the power unit 43. A clutch cable 114 is a battery disposed on the back side of the air cleaner 108.

  The exhaust device 103 includes an exhaust pipe 115 attached to the lower part of the cylinder head 101 and a muffler 116 attached to the rear end of the exhaust pipe 115. The muffler 116 is attached to the rear bar member 92 and the tip of the bar member 92. It is supported via the attached muffler stay 117.

The swing arm 45 is a member attached to the pivot plates 37 and 38 via the pivot shaft 121, and has a rear wheel 122 and a pair of left and right rear cushion units 123 and 123 at the rear end (only the reference numeral 123 on the front side is shown). The lower end of each is attached. The upper end of the rear cushion unit 123 is attached to rail lower brackets 125 and 125 (only the reference numeral 125 on the front side is shown) attached to the seat rails 23 and 24, respectively. 126 is a chain cover.
The pivot plates 37 and 38 are members provided with power unit support portions 131 to 133 for supporting the upper and rear portions of the power unit 43.

  Here, 137 is a stand, 138 is a rear fender that covers the upper portion of the rear wheel 122 by being attached to the seat rails 23 and 24 and the rail lower brackets 125 and 125, and 141 and 142 (only the reference numeral 141 on the front side is shown). A pair of left and right rear winkers 144 and 146 attached to a winker stay 143 provided on the rear are a rear cover and a tail lamp attached to the rear fender 138.

  FIG. 2 is a rear cross-sectional view of the motorcycle according to the present invention (the arrow (FRONT in the figure indicates the front of the vehicle; the same applies hereinafter)), and the seat rails 23 and 24 (only the reference numeral 23 on the front side is shown). A cross plate 151 is attached to the rear portion, a grab rail 87 is attached to the cross plate 151 with a plurality of bolts 152, a hook 154 and a rubber plate 156 are attached to the cross plate 151, and a bottom plate 157 provided below the seat 16 It is shown that the rear portion of the seat 16 is engaged with the seat rails 23 and 24 by forming the insertion portion 157a integrally with the hook 154 and inserting the insertion portion 157a into the hook 154.

The cross plate 151 includes an L-shaped cross section 163 including a substantially horizontal central inclined portion 161 and an upright portion 162 raised from the rear end of the central inclined portion 161. The central inclined portion 161 has a hook 154 and a rubber plate. 156 is a member in which a rear seat load receiver 162a is formed by bending the upper end of the upright portion 162 rearward, and a regulator 164 for adjusting the charging voltage of the charging system is attached to the back surface 162b of the upright portion 162.
The hook 154 and the rubber plate 156 described above are members that constitute the engaging portion 165 that engages with the insertion portion 157a on the sheet 16 side.

  The grab rail 87 includes base portions 166 and 167 attached to the cross plate 151 (only the rear side reference numeral 167 is shown), a grab rail body 168 attached to these base portions 166 and 167, and the grab rail body 168. It consists of a grip portion 172 attached to the rear portion with a screw 171.

  The bottom plate 157 of the seat 16 is formed with an abutting surface 157b capable of abutting against the rear seat load receiver 162a of the cross plate 151 obliquely above and behind the insertion portion 157a. Reference numerals 174 and 174 (only the rear side reference numeral 174 are shown) are cushion rubbers attached to the bottom plate 157 so as to contact the base portions 166 and 167 of the grab rail 87.

FIG. 3 is a perspective view of the rear part of the motorcycle according to the present invention. By attaching the base parts 166 and 167 to the cross plate 151 with two bolts 152, the grab rails 87 are attached to the seat rails 23 and 24, respectively. It shows that attachment portions 144a and 144b for attaching to the rear portion of the cross plate 151 are formed to protrude from the inner surface of the rear cover 144 that covers the rear cover 144. In addition, the fastening member which attaches the attaching parts 144a and 144b to the cross plate 151 is omitted. Reference numeral 178 denotes a nut attached to the upright portion 162 in order to attach the regulator 164 to the upright portion 162 of the cross plate 151.
The rear cover 144 includes a pair of left and right rear side covers 181 and 182, and a rear center cover 183 disposed between rear upper portions of the rear side covers 181 and 182.

  FIG. 4 is a cross-sectional view (exploded view) showing an assembled state of the rear part of the vehicle body according to the present invention. The cross plate 151 has hook insertion holes 151b and 151b for attaching a plurality of nuts 186 to the bottom surface 151a and inserting the hooks 154. (Only the rear side reference 151b is shown) and a rubber plate insertion hole 151c for inserting the mounting protrusion 156a provided integrally on the bottom surface of the rubber plate 156 are opened, and a regulator mounting nut 178 is provided on the front surface 162d of the upright portion 162. It is an attached member.

  The regulator 164 is attached to the upright portion 162 by passing the bolt 187 through an attachment hole 164a formed in the regulator 164 and a bolt insertion hole 162e formed in the upright portion 162, and screwed into the nut 178.

  A plurality of collars 188 are attached to the back surfaces 166a and 167a (only one symbol 167a is shown) of the base portions 166 and 167 (only the symbol 167 on the back side) of the grab rail 87, and the upper surfaces 166b and 167b (one symbol is shown). Only the reference numeral 167b is shown), and the cushion rubber 174 on the seat 16 side hits the member.

  The grab rail 87 is attached to the cross plate 151 by passing a plurality of bolts 152 through bolt insertion holes 166c and 167c (only the rear side reference numeral 167c is shown) formed in the base portions 166 and 167, and a plurality of collars 188. Further, it is performed by passing through a plurality of bolt insertion holes 151d opened in the cross plate 151 and screwing them into a plurality of nuts 186, respectively.

  The cushion rubber 174 includes a cylindrical cushion main body 174a and an attachment end 174b integrally formed on the upper end of the cushion main body 174a for attachment to the bottom plate 157. The attachment end 174b is formed in the attachment hole 157c formed in the bottom plate 157. Install by fitting.

FIG. 5 is a plan view of the cross plate according to the present invention. The cross plate 151 includes frame side mounting portions 151e and 151e provided on the left and right sides for mounting on the seat rails 23 and 24, and these frame side mounting portions 151e, The central inclined portion 161 is inclined so that the rear portion is lower than the front portion with respect to 151e, and the upright portion 162 provided at the rear portion of the central inclined portion 161, and a plurality of frame side attachment portions 151e, 151e The bolt insertion hole 151d is opened, a plurality of nuts 186 are attached to the bottom surface, and the bolt insertion holes 151f and 151f through which the bolts for attaching the attachment portions 144a and 144b of the rear cover 144 are passed to the rear of the frame side attachment portions 151e and 151e. A member having nuts 191 and 191 attached to the bottom surface.
The hook 154 is a U-shaped member in plan view, and the width of the rubber plate 156 is substantially matched to the left and right width inside the hook 154.

  FIG. 6 is a cross-sectional view of the rear part of the vehicle body according to the present invention. The cross plate 151 is a member having a substantially U-shaped cross section, and the frame-side attachment portion 151e extends substantially vertically from the seat rails 23 and 24, respectively. It consists of a vertical portion 151g and a horizontal portion 151h extending almost horizontally from the upper end of the vertical portion 151g.

  The base portions 166 and 167 are respectively flat portions 166d and 167d for load receiving that are attached to the frame side attaching portion 151e of the cross plate 151, and sides that extend obliquely downward from the load receiving flat portions 166d and 167d, respectively. The laterally inclined portions 166e and 167e, and the laterally inclined portions 166e and 167e extend sideways from the laterally inclined sides 166e and 167e, and are attached to the grab rail main body 168 and lateral horizontal portions 166f and 167f.

  By providing the above-described base portions 166 and 167 with load receiving flat portions 166d and 167d that receive the load of the seat 16 via the cushion rubbers 174 and 174, the distance D between the cushion rubbers 174 and 174 can be set, for example, as a cushion. Compared with the case where the rubber 174, 174 is applied to the black spray 151, the rubber 16 can be made larger, and the inclination of the seat 16 in the vehicle lateral direction can be further suppressed.

  As shown in FIGS. 2, 4, and 6, in the present invention, the insertion portion 157 a protrudes from the lower portion of the sheet 16, and the engagement engages with the insertion portion 157 a on the cross plate 151 as a cross member. A portion 165 is provided, and the engagement portion 165 is characterized in that a gate-shaped hook 154 is provided on the cross plate 151, and a rubber plate 156 as a rubber is disposed below the hook 154.

  An insertion portion 157 a of the sheet 16 and an engagement portion 165 that engages with the insertion portion 157 a are provided. A hook 154 is provided on the cross plate 151, and a rubber plate 156 is provided below the hook 154. Since it is disposed, the insertion portion 157a of the seat 16 and the cross plate 151 do not directly contact each other by the rubber plate 156 in the engaging portion 165, and the ride comfort can be improved by the elastic force of the rubber plate 156.

Further, the present invention is characterized in that a regulator 164 is provided on the back surface 162b of the upright portion 162.
By the standing portion 162, heat radiation from the regulator 164 can be promoted, and the performance of the regulator 164 can be maintained.

  Further, according to the present invention, a grab rail 87 is attached to the cross plate 151, and more specifically, the grab rail 87, more specifically, the base portions 166 and 167 are provided with load receiving flat portions 166d and 167d as third load receivers. Features.

  Since the load receiving flat portions 166d and 167d are provided on the base portions 166 and 167 of the grab rail 87, the distance between the load receiving flat portions 166d and 167d in the left-right direction of the vehicle, that is, the load receiving flat portions 166d and 167d. The distance D in the vehicle left-right direction between the hitting cushion rubbers 174, 174 can be increased, and the left-right inclination of the seat 16 can be suppressed.

Next, the operation of the sheet support structure described above will be described.
7A and 7B are operation diagrams showing the operation of the seat support structure according to the present invention.
In (a), for example, when only the driver is seated on the front part of the seat 16, or when a small load (seat load F1) is applied to the rear part of the seat 16, as shown in FIG. The cushion rubber 174 on the seat 16 side contacts the load receiving flat portions 166d and 167d, and the lower portion of the insertion portion 157a of the bottom plate 157 shown in FIG. 7A is a central inclined portion 161 of the cross plate 151 via the rubber plate 156. Press down.

  In (b), for example, when the driver is seated on the front portion of the seat 16 and the passenger is seated on the rear portion of the seat 16, the seat 16 is further bent from the state shown in (a), and the bottom plate 157 The contact surface 157b provided at the rear end portion of the cross plate 151 hits the rear seat load receiver 162a provided at the upper end of the upright portion 162 of the cross plate 151, and receives the seat load F2 (F2> F1). Therefore, even if the seat load F2 is large, the seat 16 can be prevented from being greatly depressed by the rear seat load receiver 162a.

  Therefore, even if the gap C between the seat 16 and the rear cover 144 when the driver and the passenger are not seated on the seat 16 shown in FIG. 2 is reduced, the interference between the seat 16 and the rear cover 144 can be prevented. The gap C becomes inconspicuous and the appearance of the rear part of the vehicle can be improved.

  FIG. 8 is a cross-sectional view showing the rear fender rear portion of the motorcycle according to the present invention. A pair of left and right through holes 138a and 138a are formed in the rear fender 138, and mounting bolts 201 and 201 are passed through these through holes 138a and 138a. The mounting bolts 201 and 201 are screwed into the nuts 202 and 202, so that the license plate support stay 204 that supports the license plate 203 and the winker stay 143 that supports the rear turn signals 141 and 142 together with the rear fender 138 are attached to the rear fender 138. It shows that.

  Here, 208 and 211 are bolts and nuts for attaching the license plate 203 to the license plate support stay 204, and 212 is a nut for fastening the rear fender 138 and the winker stay 143 together with the bolts 213 protruding from the rear winkers 141 and 142, respectively.

  The rear fender 138, the license plate support stay 204, and the winker stay 143 are members that are bent in a convex shape toward the rear of the vehicle and provided with convex bent portions 138c, 204c, and 143c, thereby avoiding interference with the rear wheel 122. In addition, the rear fender 138, the license plate support stay 204, and the winker stay 143 are further arranged in front of the vehicle, thereby reducing the overall length of the motorcycle.

  As shown in FIGS. 2, 4, 7 (a) and 7 (b), the present invention is a motorcycle in which a seat load acting on the seat 16 is received by a cross plate 151 provided at the rear of the vehicle body. 10 (see FIG. 1), the cross plate 151 is erected to form an upright portion 162 behind the central inclined portion 161 as the first load receiver provided on the cross plate 151, and a second portion 162 is formed on the upright portion 162. A rear seat load receiver 162a is provided as a load receiver.

  Since the rear seat load receiver 162a is provided on the upright portion 162 formed at the rear of the central inclined portion 161, the load (seat load F2) acting on the seat 16 when the driver and the passenger sit on the seat 16 is seated. It can be received by the central inclined portion 161 and the rear seat load receiver 162a, and in particular, the sinking of the rear portion of the seat can be regulated by the rear seat load receiver 162a. Further, considering the sinking of the seat 16, for example, it is not necessary to provide a large gap C (see FIG. 2) between the seat 16 and the rear cover 144 which is a vehicle body cover, and the appearance of the rear portion of the vehicle is improved. Can do.

  The seat support structure of the present invention is suitable for a motorcycle.

1 is a side view of a motorcycle according to the present invention. 1 is a rear sectional view of a motorcycle according to the present invention. 1 is a perspective view of a rear part of a motorcycle according to the present invention. It is sectional drawing which shows the assembly | attachment state of the vehicle body rear part which concerns on this invention. It is a top view of the cross plate which concerns on this invention. It is a cross-sectional view of the rear part of the vehicle body according to the present invention. It is an operation | movement figure which shows the effect | action of the sheet | seat support structure which concerns on this invention. FIG. 3 is a cross-sectional view showing a rear fender rear portion of the motorcycle according to the present invention.

DESCRIPTION OF SYMBOLS 10 ... Motorcycle, 16 ... Seat, 23 , 24 ... Seat rail, 87 ... Grab rail, 151 ... Cross member (cross plate), 154 ... Hook, 156 ... Rubber (rubber plate), 157a ... Insertion part, 161 ... First 1 load receiver (center inclined portion), 162 ... standing portion, 162 a ... second load receiver (rear seat load receiver), 162 b ... back surface, 164 ... regulator, 165 ... engaging portion, 166 d, 167 d ... third Load receiver (flat part for load receiver).

Claims (4)

In a motorcycle that receives a seat load acting on the seat with a cross member attached to the rear of the left and right seat rails ,
Behind the first load receiver provided on the cross member, the cross member is raised to form an upright portion, and a second load receiver is provided on the upright portion ,
An insertion portion is formed to project at a lower portion of the sheet, and an engagement portion that engages with the insertion portion is provided on the cross member,
The engaging portion, the cross member to provide a hook portal, motorcycle seat support structure, characterized in that a rubber below the hook. Seat support structure for a motorcycle according to claim 1 Symbol mounting, characterized in that a regulator on the back of the standing part. Said mounting the grab rail to the cross member, the seat support structure for a motorcycle according to claim 1 or claim 2 Symbol mounting, characterized in that a third load receiving receiving a seat load to the grab rail. The seat support structure for a motorcycle according to claim 1, wherein the second load receiver is formed in a plate shape by bending an upper end of the upright portion.

Images