JP5487334B2 - Anti-theft device for motorcycles - Google Patents

Description

  The present invention relates to an antitheft device for a motorcycle, and more particularly to an arrangement structure of the antitheft device.

  When a vehicle is stolen, the vehicle position is detected using a GPS (Global Positioning System) function, for example, in order to prevent the engine from starting, to issue an alarm, or to find a stolen vehicle, An antitheft device capable of transmitting this position information to a mobile phone or the like has been developed.

As such a motorcycle antitheft device, a device disposed in a helmet storage box provided in a motorcycle is known (for example, see Patent Document 1).
JP 2002-362448 A

  According to FIG. 1 and FIG. 4 of Patent Document 1, a storage box 5 is attached to the rear portion of the body frame 1, and in this storage box 5, two anti-theft devices are accommodated in a space that accommodates two helmets H 1 and H 2. 20 is provided.

  By providing the antitheft device 20 in the container box 5, the capacity of the container box 5 is reduced. For example, a space for storing small items in addition to the helmets H1, H2 in the container box 5 is reduced.

  In addition, for example, in a motorcycle that does not include a storage box, it is desirable to arrange an antitheft device while effectively utilizing the space of the vehicle body in order to prevent the vehicle from becoming large.

  An object of the present invention is to provide an antitheft device for a motorcycle that can be arranged while effectively using a storage space or other vehicle body space.

  According to the first aspect of the present invention, a front fork is attached to the front portion of the vehicle body frame so as to be steerable, a front wheel is supported at the lower end of the front fork, and a swing arm is attached to the rear portion of the vehicle body frame so as to be swingable. In a motorcycle with a rear wheel supported at the rear end of the arm, a seat attached to the rear upper part of the body frame, a vehicle equipped with a theft countermeasure device capable of measuring the position of the vehicle and wirelessly transmitting the measured position information, The anti-theft device is arranged so as to face the bottom of the seat, and the seat is formed so that two persons, a rider and a passenger, can ride on the front and back, and the seat is on the vehicle body side with one of its front end or rear end as a fulcrum The anti-theft device is attached to the bottom surface of the seat located above the fulcrum.

As an effect, the space facing the bottom surface of the seat is a space that is not used, and the antitheft device is arranged in this space, so that the space in the storage box is not reduced in a vehicle equipped with the storage box. Further, in a vehicle that does not include a storage box, the vehicle body space is effectively used.
Further, the weight of the rider and the passenger is difficult to add to the position between the seating position of the rider and the seating position of the passenger. Therefore, even if the anti-theft device is disposed at this position, it is not necessary to change the structure of the seating positions of the rider and passenger, for example, the seat thickness, the seat width, etc., and the riding comfort is kept good.
In addition, since the weight of the occupant seated on the seat is unlikely to be applied to the front end or the rear end of the seat, it is difficult to apply a large load to the antitheft device disposed at the front end or the rear end of the seat. Moreover, if the harness connected to the antitheft device is wired from the vicinity of the fulcrum to the vehicle body side, the length of the harness is shortened. Further, by arranging the anti-theft device near the seat fulcrum in this way, it is not necessary to change the seat thickness at the seating position of the occupant.

  The invention according to claim 2 is characterized in that, in claim 1, the fulcrum is attached in the vicinity of the front end of the seat.

  A third aspect is characterized in that, in the first or second aspect, the harness connected to the antitheft device is wired from the vicinity of the fulcrum to the vehicle body side.

  According to a fourth aspect of the present invention, in the second or third aspect, the pair of hinge support portions for attaching the seat side hinge that is swingably attached to the hinge portion constituting the fulcrum is integrally formed to project between the hinge support portions. The anti-theft device is arranged in.

The invention according to claim 5 is characterized in that the antitheft device includes a GPS for detecting position information and a mobile phone communication unit for transmitting the detected position information.
As a function, when a motorcycle equipped with an anti-theft device is stolen, the GPS receives the orbit information from the artificial satellite and detects the position information of the motorcycle, and the mobile phone communication unit, for example, a satellite mobile phone By transmitting position information to the vehicle, the current position of the motorcycle can be determined.

  When the antitheft device is disposed at the vehicle body position according to claims 1 to 4 described above, since there is no metal member above the antenna provided for each of the GPS and the mobile phone communication unit, it is sent from an artificial satellite. Or, the radio wave sent to the mobile phone base station is not blocked.

  In the invention according to claim 6, the anti-theft device includes a GPS that detects position information, a mobile phone communication unit that transmits the detected position information, an acceleration sensor that detects vibration applied to the vehicle body during theft, A control unit that integrally controls the GPS, the mobile phone communication unit, and the acceleration sensor, and an internal power source that supplies power to the GPS and the mobile phone communication unit are provided in one case.

As an effect, when a vibration is applied to the vehicle body when the motorcycle is stolen, the acceleration sensor detects the vibration and the controller recognizes that the theft has occurred.
When the motorcycle is stolen, the GPS receives the orbit information from the artificial satellite and detects the position information of the motorcycle, and the control unit sends the position information to the mobile phone communication unit, for example, a mobile phone. By transmitting to the base station, the current position of the motorcycle can be determined.

  When the antitheft device is disposed at the vehicle body position according to claims 1 to 4 described above, since there is no metal member above the antenna provided for each of the GPS and the mobile phone communication unit, it is sent from an artificial satellite. Or, the radio wave sent to the mobile phone base station is not blocked.

The GPS and the mobile phone communication unit operate by being supplied with power from a vehicle battery or an internal power source.
The anti-theft device is housed in one case and attached to the vehicle body.

  The invention according to claim 7 includes an anti-theft device having an engine stop function for stopping engine start and an alarm function for issuing an alarm by operating a lighting device when the anti-theft device detects theft. The engine stop function and the alarm function can be operated by connecting to the electrical system provided in the vehicle body.

As an effect, when the anti-theft device detects the theft of a motorcycle, the engine cannot be started, and a lighter is activated to generate an alarm.
By connecting the antitheft device to an existing electrical system provided in the vehicle body, it is possible to activate the engine stop function and the alarm function.

The invention according to claim 8 is characterized in that the case is formed in a box shape, and the largest surface of the box is arranged in a horizontal or nearly horizontal state.
As an operation, if the antenna of the GPS and the mobile phone communication unit is arranged on the largest surface of the case formed in the box shape, the area of the antenna becomes larger.

In the invention according to claim 1, since the anti-theft device is disposed so as to face the bottom surface of the seat, the anti-theft device can be used by effectively utilizing a space that is not used in a vehicle not equipped with a storage box. Can be installed. Further, even in a vehicle including a storage box, the antitheft device can be arranged without sacrificing the capacity of the storage box, and the inside of the storage box can be used effectively.
In addition, the seat is formed so that two persons, a rider and a passenger, can ride forward and backward, and the anti-theft device is disposed below the center part in the vehicle longitudinal direction of the seat between the seating position of the rider and the passenger. Even if the space for placing the anti-theft device is secured, it is not necessary to change the seat thickness at the seating positions of the rider and passenger, so the anti-theft device can be placed without compromising the riding comfort of the seat. it can.
Furthermore, the seat is attached to the vehicle body side so that the seat can be opened and closed with one of the front end and the rear end as a fulcrum, and the anti-theft device is attached to the bottom surface of the seat located above the fulcrum. The sheet thickness can be secured, and the antitheft device is disposed in the vicinity of the fulcrum, so that the harness connected to the antitheft device can be easily extended from the vehicle body side.

  In the invention according to claim 2, in addition to the effect of claim 1, the fulcrum is attached in the vicinity of the front end of the seat.

  In the invention according to claim 3, in addition to the effect of claim 1 or 2, the harness connected to the antitheft device is wired from the vicinity of the fulcrum to the vehicle body side.

  In the invention according to claim 4, in addition to the effect of claim 2 or 3, a pair of hinge support portions for attaching a seat side hinge that is swingably attached to the hinge portion constituting the fulcrum is integrally formed to project, An anti-theft device is disposed between these hinge supports.

  In the invention according to claim 5, since the anti-theft device includes the GPS for detecting the position information and the mobile phone communication unit for transmitting the detected position information, the anti-theft device including the GPS and the mobile phone communication unit is provided. When placed in the vehicle body, when receiving orbit information from an artificial satellite by GPS and transmitting position information by a mobile phone communication unit, there is no metal member above the GPS and mobile phone communication unit, Is not blocked, the transmission / reception sensitivity is improved, and the antitheft device can be operated satisfactorily even with a motorcycle having a low degree of freedom in arranging the antitheft device.

  In the invention according to claim 6, the antitheft device includes a GPS that detects position information, a mobile phone communication unit that transmits the detected position information, an acceleration sensor that detects vibration applied to the vehicle body during theft, Since the GPS, the mobile phone communication unit and the control unit for integrated control of the acceleration sensor and the internal power supply for supplying power to the GPS and the mobile phone communication unit are provided in one case, the GPS and the mobile phone communication unit The anti-theft device comprising a metal member above the GPS and mobile phone communication unit when receiving orbit information from an artificial satellite by GPS and transmitting position information by the mobile phone communication unit Since there is no radio wave, the transmission / reception sensitivity is good and the anti-theft device operates well even for motorcycles with a low degree of freedom of placement of the anti-theft device. Rukoto can.

  Further, since the anti-theft device system is housed in one case, it is possible to improve the ease of assembly to the vehicle. At this time, even if the case is enlarged, it is possible to prevent the entire vehicle from being enlarged by adopting the anti-theft device arrangement structure as described above.

  In the invention according to claim 7, the antitheft device has an engine stop function for stopping the start of the engine and an alarm function for issuing an alarm by operating a lighting device when the theft is detected. Since the engine stop function and the alarm function can be activated by connecting to the electrical system provided on the vehicle body, the engine stop function and the alarm function are activated by connecting the antitheft device to the electrical system provided on the vehicle body. Therefore, it is not necessary to arrange new functional parts or increase wiring.

  Further, by arranging the anti-theft device as described above, the anti-theft device can be connected to the basic wiring of the vehicle with a short dedicated wiring, so that the vehicle can be reduced in weight and size.

  In the invention according to claim 8, since the case is formed in a box shape and the largest surface of the box is arranged horizontally or nearly horizontally, the arrangement of the functional components in the antitheft device is optimized. Thus, the area of the antenna of the GPS and mobile phone communication unit can be ensured, and transmission and reception can be improved.

1 is a side view (first and second embodiments) of a motorcycle equipped with an antitheft device according to the present invention. It is sectional drawing which shows the arrangement structure (1st Embodiment) of the antitheft device which concerns on this invention. It is a principal part perspective view which shows the attachment state of the antitheft device which concerns on this invention (1st Embodiment). It is a principal part top view (1st Embodiment) which shows the attachment state of the antitheft device which concerns on this invention. It is a cross-sectional view (1st Embodiment) of the vehicle body rear part containing the antitheft device which concerns on this invention. It is explanatory drawing which shows the arrangement structure (2nd Embodiment) of the antitheft device which concerns on this invention. It is a block diagram of the antitheft device which concerns on this invention. It is a side view (3rd Embodiment) of the motorcycle with which the antitheft device which concerns on this invention was mounted. It is a side view (3rd Embodiment) which shows the attachment position of the antitheft device which concerns on this invention. FIG. 10 is a view taken in the direction of arrow 10 in FIG. It is a side view (4th Embodiment) of the motorcycle by which the antitheft device which concerns on this invention was mounted. It is explanatory drawing (4th Embodiment) which shows the attachment position of the antitheft device which concerns on this invention.

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 equipped with a theft countermeasure device according to the present invention (first and second embodiments). A motorcycle 10 includes a head frame 12 having a body frame 11 constituting a front end, A main frame 13 extending obliquely downward and rearward from the head pipe 12, a pivot plate 14 extending integrally rearward and obliquely downward from the rear end of the main frame 13, and integrally extending downward and obliquely downward from the lower front portion of the main frame 13. A down frame 16, a seat rail 17 extending obliquely rearward and upward from the upper rear portion of the main frame 13, and a pivot frame 14 and a sub-frame 18 passed to each of the seat rails 17, are steerable to the head pipe 12. A front fork 21 is attached, and a fuel tank 22 is attached to the upper part of the main frame 13. The engine 20 is attached to the pivot plate 14 and the down frame 16, the swing arm 24 is attached to the pivot plate 14 via the pivot shaft 23, and the tandem seat 26 is attached to the upper part of the seat rail 17. It is a riding vehicle.
In the tandem seat 26, a front seat 26a on which a driver (rider) sits and a rear seat 26b on which a passenger (passenger) sits are integrally formed.

  In the figure, reference numeral 31 denotes a bar handle attached to the upper end of the front fork 21, 32 denotes a front wheel attached to the lower end of the front fork 21, 33 denotes a front cowl, 34 denotes a headlamp covered with the front cowl 33, and 36 denotes Front fender covering the front wheel 32, 37 is a rear wheel attached to the rear end of the swing arm 24, 38 is a step bracket attached to the pivot plate 14, 39 is a passenger step attached to the step bracket 38, 41 Is a rear cushion unit connected to the joint between the seat rail 17 and the subframe 18 and the swing arm 24, 42 is a rear body cover, and 43 is a rear fender that covers the rear wheel 37.

  When the motorcycle 10 is stolen or after it has been stolen, the anti-theft device 50 takes (1) the upper surface of the seat rail 17 covered with the tandem seat 26 (first embodiment), or ( 2) It is attached to the rear end (second embodiment) of the fuel tank 22 covered with the front end of the tandem seat 26. Hereinafter, the arrangement structure of the antitheft device 50 will be described in detail.

  FIG. 2 is a cross-sectional view (the arrow (FRONT) in the figure indicates the front of the vehicle; the same applies hereinafter) of the anti-theft device according to the present invention. The state where the antitheft device 50 is attached to the rear is shown.

  The seat rail 17 is a member obtained by vertically joining a press-formed steel plate upper frame 81 and a lower frame 82. A rear upper surface 81a of the upper frame 81 is formed flat, and a support bracket 83 is formed on the rear upper surface 81a. The antitheft device 50 is elastically supported by the support bracket 83 via a first elastic member 84 made of rubber or the like.

  The support bracket 83 is a member formed by bending a steel plate, and includes a flat bottom wall 83a, a front rising portion 83b raised integrally from the bottom wall 83a, and a pair of left and right side rising portions. 83c and 83d (only the side side rising portion 83c on the near side is shown).

  The first elastic member 84 is put on the antitheft device 50 in the form of a box, and a front protruding portion 84b that protrudes forward integrally at the front portion, and a side that integrally protrudes laterally at the left and right side portions. Part protrusions 84c and 84d (only the side protrusion part 84c on the front side is shown), and the front protrusion part 83b and the side of the support bracket 83 are provided on the front protrusion part 84b and the side protrusion parts 84c and 84d, respectively. Part raising portions 83c and 83d are inserted.

  The antitheft device 50 is connected with harnesses 86 and 87 (only the front harness 86 is shown) connected to the electrical system provided on the vehicle body side at the rear. Reference numeral 91 denotes a connector provided at an end of the harness 86 in order to connect the one harness 86 to the antitheft device 50.

  The tandem sheet 26 includes a resin bottom plate 95, a cushion material 96 attached to the bottom plate 95, and a skin 97 covering the surface of the cushion material 96 and having a peripheral edge attached to the rear surface peripheral edge of the bottom plate 95, The front seat 26a and the rear seat 26b are recessed upward in the bottom plate 95 below the boundary portion 26c (a portion that transitions from a convexly curved portion below the front seat 26a to a substantially horizontal portion of the rear seat 26b). A rear recess 95a is formed, and the upper portion of the antitheft device 50 is accommodated in the rear recess 95a. Reference numeral 95b denotes a bottom surface of the bottom plate 95 facing the antitheft device 50 side.

The second elastic members 101 to 103 made of rubber or the like are attached to the front and rear of the rear recessed portion 95a of the bottom plate 95, and the lower ends of these second elastic members 101 to 103 are applied to the seat rail 17 so that the tandem seat 26 is Elastically supported.
Reference numeral 105 in the figure denotes a grab rail attached to the rear portion of the seat rail 17.

FIG. 3 is a perspective view (first embodiment) showing a main part mounted state of the antitheft device according to the present invention, and the antitheft device between the seat rail 17 and the bottom plate 95 of the tandem seat 26 (see FIG. 1). The state where 50 is arranged is shown.
The antitheft device 50 includes a box-shaped case 50a for storing the components. Reference numeral 50b is the upper surface of the case 50a.
The bottom plate 95 is provided with a rear concave portion 95 a that is recessed only above the antitheft device 50.

  FIG. 4 is a plan view (first embodiment) showing a main part of the anti-theft device according to the present invention. The upper surface 50b of the case 50a of the anti-theft device 50 is the most area among the six surfaces of the case 50a. With the upper surface 50b facing upward, radio waves can be efficiently received by each of the antennas of the GPS and the mobile phone communication unit described later built in the antitheft device 50.

  The support bracket 83 that supports the anti-theft device 50 is a T-shaped member in plan view, and is provided with a front rising portion 83b and side rising portions 83c and 83d at each end of the T shape.

The first elastic member 84 is a T-shaped member in plan view, and is provided with a front protrusion 84b and side protrusions 84c and 84d at each end of the T-shape, and the front protrusion 84b and the side thereof. The front raised portion 83b and the side raised portions 83c and 83d of the support bracket 83 are press-fitted into rectangular mounting holes 84f opened in the protruding portions 84c and 84d, respectively.
The front rising portion 83b and the side rising portions 83c and 83d are prevented from being removed from the mounting holes 84f by frictional force.

  The grab rail 105 includes a grab rail body 107 formed by bending a metal rod and a bracket 108 for attaching the rear part of the body part 107 to the seat rail 17. The attachment portion 107a and the right attachment portion 107b and the left attachment portion 108a and the right attachment portion 108b of the bracket 108 are attached to the seat rail 17 with bolts 109, respectively. Reference numerals 107d and 107e denote a left gripping part and a right gripping part gripped by the passenger.

  The harnesses 86 and 87 connected to the antitheft device 50 pass from the rear end portion of the antitheft device 50 through the space 111 formed between the left mounting portion 107a and the right mounting portion 107b of the grab rail 105 to the rear of the vehicle. It extends. Reference numeral 92 denotes a connector provided at an end of the harness 87 for connecting the harness 87 to the antitheft device 50.

FIG. 5 is a transverse sectional view (first embodiment) of the rear portion of the vehicle body including the antitheft device according to the present invention, and corresponds to a sectional view taken along line 5-5 in FIG.
The rear portion of the antitheft device 50 is surrounded by the first elastic member 84 at the upper, lower and both sides. Accordingly, the four sides of the antitheft device 50 can be protected by the first elastic member 84.

FIGS. 6A and 6B are explanatory views showing an arrangement structure (second embodiment) of the antitheft device according to the present invention.
In (a), the rear end portion of the fuel tank 22 and the front end portion of the tandem seat 26 overlap to constitute a superposition portion 94.
The fuel tank 22 has a tank concave portion 22a formed at the rear end portion, and a flat bottom surface 22b inclined rearwardly downward is formed in the concave portion 22a. A support bracket 83 is attached to the bottom surface 22b. The anti-theft device 50 is elastically supported through one elastic member 84 (see FIG. 6B). The antitheft device 50 and the first elastic member 84 are covered with a third elastic member 93 made of rubber or the like, and the third elastic member 93 includes a bottom plate 95 of the tandem seat 26 and a recess of the fuel tank 22. It is in contact with the bottom surface 22b of 22a.

The bottom plate 95 of the tandem sheet 26 has a front recess 95c that is recessed rearward and obliquely upward at the front end, and a part of the antitheft device 50 is accommodated in the front recess 95c.
The front end portion 26e of the front seat 26a is a portion in which the weight of the driver is relatively difficult to apply, and the front recess 26c is provided in the front end portion 26e, so that the influence on the ride comfort even if the cushion material 96 is thinned. There are few.

  (B) is a view taken in the direction of arrow b in (a), and the antitheft device 50 is disposed in the tank recess 22a of the fuel tank 22 so that the connectors 91 and 92 face the rear side of the vehicle. Accordingly, the harnesses 86 and 87 can be easily extended to the rear of the vehicle along the longitudinal direction of the tandem seat 26 below the tandem seat 26 (see (a)).

  The third elastic member 93 includes three side surfaces of the case 50a of the antitheft device 50, that is, side surfaces 50c, 50d, 50e orthogonal to the upper surface 50b, and the front protrusion 84b and the side protrusion 84c of the first elastic member 84. , 84d are covered.

In the figure, the third elastic member 93 is disposed on the front and both sides of the anti-theft device 50, but is not limited thereto, and may be disposed on the rear and both sides of the anti-theft device 50. You may arrange | position in the front of the apparatus 50, back, and both sides.
Further, the first elastic member 84 and the third elastic member 93 may be integrally formed.

FIG. 7 is a block diagram of an antitheft device according to the present invention.
The anti-theft device 50 includes an acceleration sensor 51 that detects vibration applied to the body of the motorcycle, a GPS (Global Positioning System) 52 that measures the current position of the vehicle by receiving orbit information from a plurality of artificial satellites, and The controller 55 receives the acceleration signal SA from the acceleration sensor 51 and the position information JP from the GPS 52, and instructs the mobile phone base station 61 based on the communication command SC from the controller 55. Is transmitted to the ignition device 62 of the engine 20 (see FIG. 1) based on the engine control signal SEC from the control unit 55 to stop the operation of the ignition device 62, that is, The engine control unit 57 for stopping the engine 20 and the alarm control signal SAC from the control unit 55 Alarm device 58 for operating the lamp and horn by sending an alarm signal SA to the alarm device 63 (light lamp and horn such as headlamp, turn signal and tail lamp), GPS 52, control unit 55, mobile phone communication unit 56, It comprises a battery 59 for supplying electric power to the engine control unit 57 and the alarm generation unit 58.

Each of the GPS 52 and the mobile phone communication unit 56 includes communication antennas, and each configuration of the antitheft device 50 including these antennas is housed in one case 50a (see FIG. 3).
The engine control unit 57 described above may control the ignition device 62 via an engine control unit provided in the motorcycle.

  FIG. 8 is a side view (third embodiment) of a motorcycle on which the antitheft device according to the present invention is mounted. The motorcycle 120 includes a head pipe 122 whose body frame 121 forms a front end, and the head pipe. A main frame 123 extending obliquely downward and rearward from 122, a pivot plate 124 extending integrally obliquely forward and downward from the rear end of the main frame 123, and extending downward and obliquely downward from the front lower portion of the main frame 123 and extending the lower end. A head frame comprising a down frame 126 integrally connected to the main frame 123 via a portion 126a, and a seat rail 127 extending obliquely rearward and upward from a rear protrusion 123a integrally protruding from the upper rear portion of the main frame 123. A front fork 131 is attached to 122 so that it can be steered. A fuel tank 132 is attached to the upper part of the frame 123, a swing arm 134 is attached to the pivot plate 124 via a pivot shaft 133, and a rider seat 136 is attached to the upper part of the seat rail 127. This is a straddle-type vehicle in which a passenger seat 138 is attached to an upper portion of 127 via a rear fender 137 that covers an upper portion of a rear wheel 147 described later.

  In the figure, reference numeral 141 is a bar handle attached to the upper end of the front fork 131, 142 is a front wheel attached to the lower end of the front fork 131, 143 is a cowling, 144 is a headlamp attached to the cowling 143, and 146 is a front wheel 142. Front fenders 147, rear wheels attached to the rear end of the swing arm 134, 148 a step bracket attached to the seat rail 127, 149 a passenger step attached to the step bracket 148, 151 a rear part A rear cushion unit 153 is a rear body cover that is passed through the link mechanism 152 between the protruding portion 123a side, the pivot plate 124 side, and the swing arm 134 side.

  The antitheft device 50 is attached to the upper portion of the rear fender 137 and is disposed below the front end portion of the passenger seat 138. In other words, the rider seat 136 and the passenger seat 138 are disposed below the step 154. The attachment position of the antitheft device 50 will be described in detail below.

  FIG. 9 is a side view showing a mounting position of the antitheft device according to the present invention (third embodiment). A rear fender 137 has a front inclined portion 137A inclined forward and a rear inclined portion 137A. The rear inclined portion 137B is integrally formed at the end so that the inclination angle of the front lowering is smaller than that of the front inclined portion 137A, and the rear inclined portion 137B is integrally formed at the rear end so that the license plate is attached. The support bracket 83 is attached to the flat portion 137e provided at the front portion of the rear inclined portion 137B, and the antitheft device 50 is attached to the support bracket 83 via the first elastic member 84. Elastically supported. Reference numeral 139 denotes a bottom plate of the passenger sheet 138, and 139a denotes a bottom surface of the bottom plate 139.

FIG. 10 is a view taken in the direction of arrow 10 in FIG. 9 (third embodiment). A flat portion 137e is formed on the rear inclined portion 137B of the rear fender 137, and rear convex portions 137f projecting upward to the left and right of the flat portion 137e. The anti-theft device 50 is disposed in a space 155 between the rear protrusions 137f and 137g.
The rear protrusions 137f and 137g are portions that support the bottom plate 139 (see FIG. 9) of the passenger seat 138 (see FIG. 8) at their upper ends.

FIG. 11 is a side view (fourth embodiment) of a motorcycle on which the antitheft device according to the present invention is mounted. The motorcycle 160 includes a head pipe 162 whose body frame 161 forms a front end, and the head pipe. A main frame 163 extending obliquely downward and rearward from 162, a pivot plate 164 attached to a rear end of the main frame 163, and a pair of left and right rear frames 166 extending obliquely downward and backward obliquely upward from an intermediate portion of the main frame 163 , 167 (only the reference numeral 166 on the front side is shown) and sub-frames 168, 169 (only the reference numeral 168 on the front side is shown) passed to the pivot plate 164 and the rear frames 166, 167, respectively. A front fork 171 is attached to the pipe 162 so as to be steerable, and the main fork 171 is attached. The engine 172 is mounted on the frame 163 and the pivot plate 164, the storage box 173 and the fuel tank 174 are mounted on the upper portions of the rear frames 166 and 167, and the swing arm 177 can swing up and down via the pivot shaft 176 on the pivot plate 164. It is a straddle-type vehicle attached to the vehicle.
The storage box 173 is provided with a hinge portion 178 at the front end, and a seat 179 is attached to the hinge portion 178 so as to be freely opened and closed.

  In the figure, reference numeral 181 denotes a bar handle attached to the upper end of the front fork 171, 182 denotes a front wheel attached to the lower end of the front fork 171, 183 denotes a front fender covering the front wheel 182, and 184 denotes a handle covering the bar handle 181. The cover, 185 is a headlamp attached to the handle cover 184, 187 is a rear wheel attached to the rear end of the swing arm 177, 188 and 189 (only reference numeral 188 on the front side) is on the rear frame 166 and 167 side. A pair of left and right rear cushion units passed to the swing arm 177 side, 191 is a rear body cover, and 192 is a rear fender that covers the rear wheel 187.

  The antitheft device 50 is attached to the front end portion of the seat 179 in the vicinity of the hinge portion 178 in the storage box 173. The attachment position of the antitheft device 50 will be described in detail below.

12 (a) and 12 (b) are explanatory views (fourth embodiment) showing the mounting position of the antitheft device according to the present invention.
(A) is sectional drawing which shows the front-end part of the storage box 173 and the sheet | seat 179, and the sheet | seat 179 has the resin-made bottom plate 195, the cushion material 196 attached to this bottom plate 195, and the surface of this cushion material 196. The skin 197 is covered and has a peripheral edge attached to the rear peripheral edge of the bottom plate 195.

  The bottom plate 195 is formed with a front end recess 195a that is recessed upward at the front end. The bottom plate 195 includes a bottom surface 195b that is formed flat on the front end recess 195a. A support bracket 83 is attached to the bottom surface 195b with a fastening member (not shown). The antitheft device 50 is elastically supported by the support bracket 83 via the first elastic member 84.

(B) is a bottom view of the sheet 179, showing the anti-theft device 50 attached to the bottom surface of the sheet 179.
A pair of hinge support portions for mounting seat side hinges (not shown) swingably attached to hinge portions 178 (see (a)) of the storage box 173 (see (a)) on the left and right of the front end portion of the bottom plate 195 195d and 195e are integrally formed to protrude, and the antitheft device 50 is disposed between these hinge support portions 195d and 195e.

  As shown in FIGS. 1 and 2, the front fork 21 is attached to the front portion of the vehicle body frame 11 so as to be steerable. The front wheel 32 is supported at the lower end of the front fork 21 and swings to the rear portion of the vehicle body frame 11. A swing arm 24 is freely attached, a rear wheel 37 is supported at the rear end of the swing arm 24, a tandem seat 26 as a seat is attached to the upper rear part of the body frame 11, and the position of the vehicle can be measured. In the motorcycle 10 provided with the anti-theft device 50 capable of wirelessly transmitting the measured position information, the anti-theft device 50 is disposed so as to face the bottom surface 95b of the tandem seat 26, and therefore does not include a storage box. In the vehicle, the antitheft device 50 can be installed by effectively using a space that is not used. Further, even in the motorcycle 160 as a vehicle including the storage box 173 shown in FIG. 11, the antitheft device 50 can be disposed without sacrificing the capacity of the storage box 173, and the inside of the storage box 173 can be arranged. It can be used effectively.

  The tandem seat 26 is formed so that two persons, a rider and a passenger, can ride forward and backward, and the anti-theft device 50 is disposed at the center of the tandem seat 26 in the front-rear direction of the vehicle between the seating position of the rider and the passenger. Therefore, even if the space for placing the anti-theft device 50 is secured, it is not necessary to change the seat thickness of the seating positions of the rider and passenger, so the theft of the tandem seat 26 is not lost. A countermeasure device 50 can be arranged.

  As shown in FIGS. 8 and 9, the rider seat 136 and the passenger seat 138 as seats are formed so that the rider's boarding position is lower than the passenger's boarding position. Since the anti-theft device 50 is disposed below the step 154 formed between the position and the position, the thickness of the passenger sheet 138 above the anti-theft device 50 can be secured by the step 154. At the same time, the antitheft device 50 can be protected.

  As shown in FIGS. 3 and 4 above, the left mounting portion 107a and the right mounting portion 107b as mounting portions of the grab rail 105 on the rear side of the anti-theft device 50 and on the body frame 11, more specifically on both sides of the seat rail 17, are provided. Are provided, and the harnesses 86 and 87 connected to the antitheft device 50 extend between the left mounting portion 107a and the right mounting portion 107b toward the rear end side of the vehicle. By arranging the harnesses 86 and 87 between the left mounting portion 107a and the right mounting portion 107b of the grab rail 105, a space 111 that is a dead space between the left mounting portion 107a and the right mounting portion 107b of the grab rail 105 is effective. It can be used, and there is no need to increase the size of the vehicle because of the space 111 in which the harnesses 86 and 87 are disposed.

  2, the rear upper surface 81a as the upper surface of the rear portion of the vehicle body frame 11 is formed flat, and the antitheft device 50 is fixed to the rear upper surface 81a via the first elastic member 84. Therefore, since the portion for fixing the anti-theft device 50 is flat, it is easy to select the direction and position for fixing the anti-theft device 50, the degree of freedom of arrangement of the anti-theft device 50 is increased, and the flat rear upper surface 81a is securely attached. And can be fixed easily.

  As shown in FIGS. 1, 2, and 4, the second elastic members 101 to 103 are provided between the vehicle body frame 11 and the bottom surface 95 b of the tandem seat 26, and the second elastic members 101 to 103 are provided. Since the antitheft device 50 is disposed in front and / or behind, the second elastic members 101 to 103 can suppress vibrations around the antitheft device 50.

  As shown in FIGS. 11, 12A, and 12B, the seat 179 is attached to the vehicle body side with a hinge portion 178 having one of the front end and the rear end as a fulcrum, and can be freely opened and closed. Since the anti-theft device 50 is attached to the bottom surface 195b of the seat 179 located above the hinge portion 178, the seat thickness at the seating position can be secured, and the anti-theft device 50 in the vicinity of the hinge portion 178. Therefore, the harnesses 86 and 87 connected to the antitheft device 50 can be easily extended from the vehicle body side.

  As shown in FIGS. 1, 6 (a) and 6 (b), the fuel tank 22 is disposed in front of the tandem seat 26, and the tandem seat 26 is disposed at the rear of the fuel tank 22 from above the fuel tank 22. Since the overlapping portion 94 with the front end portion overlapped is formed and the antitheft device 50 is attached to the fuel tank 22 side of the overlapping portion 94, the antitheft device 50 can be protected by the front end portion of the tandem seat 26. In addition, the antitheft device 50 can be disposed in the overlapping portion 94 at the front end portion of the tandem seat 26 after securing the seat thickness at the seating position of the occupant. Further, since the occupant's vertical load is relatively difficult to act on the front end portion of the tandem seat 26, the anti-theft device 50 can be arranged with a reduced seat thickness, and the superposition portion 94 is prevented from becoming large. can do.

  In addition, since the third elastic member 93 is disposed around the antitheft device 50, the antitheft device 50 can be protected by the third elastic member 93 around the antitheft device 50, and the sheet thickness is increased. Even in the case where the thickness is made thinner, the third elastic member 93 can ensure the riding comfort.

  As shown in FIGS. 1 and 7, the antitheft device 50 includes the GPS 52 that detects the position information and the mobile phone communication unit 56 that transmits the detected position information. When the antitheft device 50 including the unit 56 is arranged on the vehicle body, the GPS 52 and the mobile phone communication unit 56 receive the orbit information from the artificial satellite and the mobile phone communication unit 56 transmits the position information. Since there is no metal member on the upper side, radio waves are not blocked, so that transmission / reception sensitivity is improved, and the anti-theft device 50 can be operated satisfactorily even for a motorcycle with a low degree of freedom in arrangement of the anti-theft device 50. Can do.

  Further, the antitheft device 50 detects a GPS 52 for detecting position information, a mobile phone communication unit 56 for transmitting the detected position information, an acceleration sensor 51 for detecting vibration applied to the vehicle body during theft, and these GPS 52 The control unit 55 that integrally controls the mobile phone communication unit 56 and the acceleration sensor 51, and the battery 59 as an internal power source that supplies power to the GPS 52 and the mobile phone communication unit 56 are included in one case 50a (see FIG. 2). When the anti-theft device 50 including the GPS 52 and the mobile phone communication unit 56 is arranged in the vehicle body, when the GPS 52 receives orbit information from the artificial satellite and transmits the position information by the mobile phone communication unit 56 In addition, since there is no metal member above the GPS 52 and the mobile phone communication unit 56, radio waves are not blocked, so transmission / reception sensitivity is improved. Becomes good, also the degree of freedom in arrangement of the anti-theft device 50 is a low motorcycle can be satisfactorily operate the anti-theft device 50.

  Further, since the antitheft device 50 is housed in one case 50a, the ease of assembly to the vehicle can be improved. At this time, even if the case 50a is enlarged, the enlargement of the entire vehicle can be prevented by adopting the arrangement structure of the antitheft device 50 as described above.

  As shown in FIG. 7 above, when the antitheft device 50 detects theft, an engine stop function for stopping the start of the engine 20 (see FIG. 1) and an alarm device such as a headlamp as a lighting device. And an alarm function for issuing an alarm by operating 63, and by connecting the antitheft device 50 to an ignition device 62 as an electrical system provided in the vehicle body and an alarm device 63 as an electrical system, an engine stop function and an alarm function Since the anti-theft device 50 can be connected to the electrical system equipped on the vehicle body, the engine stop function and the alarm function can be activated, so new functional parts can be placed and wiring increased. There is no need to

  Further, by arranging the anti-theft device 50 as described above, the anti-theft device 50 can be connected to the basic wiring of the vehicle with a short dedicated wiring, so that the vehicle can be reduced in weight and size.

  As shown in FIGS. 2 to 4 above, the case 50a is formed in a box shape, and the largest surface of the box is arranged in a horizontal or nearly horizontal state. In addition, the antenna area of the GPS 52 and the mobile phone communication unit 56 can be ensured, and transmission / reception can be improved.

  In the present embodiment, as shown in FIG. 6A, the antitheft device 50 is attached to the fuel tank 22 side of the overlapping portion 94 of the fuel tank 22 and the tandem seat 26. The antitheft device 50 may be attached to the tandem sheet 26 side of the overlapping portion 94.

  The antitheft device of the present invention is suitable for a motorcycle.

  DESCRIPTION OF SYMBOLS 10,120,160 ... Motorcycle, 11 ... Body frame, 21, 131, 171 ... Front fork, 22 ... Fuel tank, 24, 134, 177 ... Swing arm, 26, 179 ... Seat (tandem seat), 32, 142 , 182 ... front wheels, 34, 144, 185 ... lighting equipment (head lamps), 37, 147, 187 ... rear wheels, 50 ... anti-theft device, 51 ... acceleration sensor, 52 ... GPS, 55 ... control unit, 56 ... mobile Telephone communicator 59 ... Internal power source (battery) 62 ... Electrical system (ignition device) 63 ... Electrical system (alarm device) 86, 87 ... harness 178 ... fulcrum (hinge) 195d, 159e ... hinge support Department.

Claims (8)

A front fork (21) is steerably attached to the front part of the vehicle body frame (11), a front wheel (32) is supported at the lower end of the front fork, and a swing arm (24) is swingably attached to the rear part of the vehicle body frame. Theft that is mounted, the rear wheel (37) is supported at the rear end of the swing arm, the seat is mounted on the rear upper part of the body frame, and the position of the vehicle can be measured and the measured position information can be transmitted wirelessly In a motorcycle equipped with a countermeasure device (50),
The antitheft device (50) is disposed so as to face the bottom surface of the sheet,
The seat is formed so that two persons, a rider and a passenger, can ride on the front and back,
The seat is attached to the vehicle body so as to be openable and closable with one of the front end and the rear end as a fulcrum (178), and the antitheft device (50) is attached to the bottom surface of the seat located above the fulcrum. ing,
A motorcycle antitheft device characterized by that.   The motorcycle antitheft device according to claim 1, wherein the fulcrum (178) is attached in the vicinity of the front end of the seat.   The antitheft device for a motorcycle according to claim 1 or 2, wherein the harness (86, 87) connected to the antitheft device is wired from the vicinity of the fulcrum (178) toward the vehicle body.   A pair of hinge support portions (195d, 195e) for attaching a seat side hinge that is swingably attached to a hinge portion constituting the fulcrum (178) is integrally formed to project, and these hinge support portions (195d, 195e). The antitheft device for a motorcycle according to claim 2 or 3, wherein an antitheft device (50) is arranged between the two.   The anti-theft device (50) comprises a GPS (52) for detecting position information and a mobile phone communication unit (56) for transmitting the detected position information. The antitheft device for a motorcycle according to any one of 4.   The antitheft device (50) includes a GPS (52) that detects position information, a mobile phone communication unit (56) that transmits the detected position information, and an acceleration that detects vibration applied to the vehicle body during theft. One case (50a) includes a sensor (51), a control unit (55) that integrally controls the GPS, the mobile phone communication unit, and the acceleration sensor, and an internal power source that supplies power to the GPS and the mobile phone communication unit. The antitheft device for motorcycles according to any one of claims 1 to 5, wherein the antitheft device for motorcycles is provided.   The anti-theft device (50) has an engine stop function for stopping the start of the engine and an alarm function for issuing an alarm by operating a lighting device when the theft is detected. The antitheft device for a motorcycle according to any one of claims 1 to 6, wherein the engine stop function and the alarm function are operable by being connected to an electrical system provided.   The antitheft device for a motorcycle according to claim 6 or 7, wherein the case (50a) is formed in a box shape and is arranged in a state where the largest surface of the box is horizontal or nearly horizontal. .

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