JP4267792B2 - Anti-theft device for motorcycles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention includes a protection member that covers a key insertion port of a main switch provided in a motorcycle so as to be freely opened and closed, and prevents theft for a motorcycle by using a lock release mechanism of the protection member also as a handle lock. Relates to the device.
[0002]
[Prior art]
JP-A-11-115841 discloses an antitheft device for motorcycles, and covers the upper part of the key switch opening of the main switch so that it can be opened and closed with a substantially U-shaped protective member, and both ends of the protective member are covered. It is shown that the handle post is coupled to the head pipe and locked by a handle lock provided on the handle post, and the operation lever is provided in the vehicle body cover near the main switch and fixed with a dedicated lock. Each of these locks has a lock device portion (hereinafter referred to as a key lock portion) such as a key cylinder that is unlocked by a key operation. Japanese Patent Application Laid-Open No. 7-69257 has a main stand lock for locking the main stand in an upright state to prevent theft, and this is operated via an operation cable by an operation lever provided in a container below the seat. The release operation is shown.
[0003]
[Problems to be solved by the invention]
By the way, the conventional example provided with the protective member has an advantage that the main switch can be destroyed and the lock of the protective member can be shared with the handle lock, but as a dedicated lock for the handle lock or the operation lever, In addition, a key lock part is necessary, and the key insertion openings of the key lock part must be partially exposed, so that there is still a possibility of inducing destructive behavior to these exposed parts. In addition, providing a key lock portion for the handle lock or the lock exclusively for the operating lever requires an additional key lock portion of the same type independent of the main switch, resulting in an increase in the number of parts and cost. Accordingly, the present invention aims to solve such problems. The destruction motive in the present invention includes not only theft but also a simple mischief.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a first invention related to a motorcycle antitheft device according to the present invention covers a key insertion port of a main switch so that it can be opened and closed and is locked in a state in which the key insertion port is closed. An antitheft device for a motorcycle with a lock for the protective member Release is possible only when the handle lock is unlocked In addition, the unlocking operation member of the handle lock is accommodated in a container, the opening is covered with a seat so as to be freely opened and closed, and the seat is fixed to the vehicle body with a seat lock.
[0005]
According to a second invention, in the first invention, a main stand is provided below the container, a main stand lock is provided for locking the main stand in an upright state, and each of the main stand lock and the handle lock is provided. The release operation is commonly performed by the lock release operation member.
[0006]
According to a third invention, in the first invention, the handle post is provided with an engaging portion for locking the end portion of the protective member, and the height changes when the end portion of the protective member is pushed toward the engaging portion. Thus, a height changing portion that engages with the engaging portion is provided.
[0007]
According to a fourth aspect of the present invention, there is provided a motorcycle antitheft device having the same premise as the first aspect of the invention, further comprising a lock mechanism for locking the handle in a state where the handle is steered by a predetermined angle. And a set plate for locking the movement of the steering wheel when the steering wheel is steered at the predetermined angle to lock its movement and to maintain the engaged state.
[0008]
【The invention's effect】
According to the first aspect of the invention, since the handle lock is also used for the unlocking operation of the protective member, and the unlocking operation of the handle lock is performed by the unlocking operation member housed in the container, In addition, it is not necessary to provide a key lock portion for each of the dedicated locks of the protective member and to expose the key insertion opening. Accordingly, since the lock of the protective member and the handle lock can be prevented from being exposed, there is no possibility of inducing a destructive action for them.
[0009]
In addition, it is unnecessary to provide a key lock portion for the exclusive lock of the handle lock or the protective member, and the unlocking operation member is accommodated in the container and covered with a seat, and this seat is fixed to the vehicle body by the seat lock. Therefore, the seat lock can be used effectively, and a dedicated key lock portion for the unlocking operation member can be dispensed with, so that the number of parts can be reduced, the structure can be simplified, and the cost can be reduced.
[0010]
According to the second invention, since the unlocking operation member is used for each unlocking operation of the handle lock and the main stand lock, the unlocking operation function of each lock can be integrated into one unlocking operation member. The number of points can be reduced, the structure can be simplified and the cost can be reduced, and the handle lock and the main stand lock, which are the same purpose as theft prevention, can be simultaneously released, so that the operability is improved.
[0011]
According to the third invention, since the height changing portion is provided at the end of the protective member, when the protective member is pushed toward the engaging portion provided on the handle post, the height changing portion is changed and engaged. It is locked by engaging the part. Therefore, since the protective member can be locked later even when the handle is cut first, it can be locked at any time before or after the handle is cut, and even after forgetting to lock the protective member and locking the handle, it is noticed. Since the protective member can be locked quickly, the operability is further improved.
[0012]
According to the fourth aspect of the invention, when the steering wheel is steered by a predetermined angle, the key insertion port is engaged with the protective member in a closed state to lock its movement, and this engagement state is maintained during the steering state of the steering wheel. Since the set plate to be held is provided on the steering member such as the handle, the lock of the protective member can be interlocked with the steering at a predetermined angle of the handle, and the lock mechanism should be relatively simple and reliable. Can do.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The first embodiment will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing a shutter portion of a main switch forming a part of an anti-theft device, FIG. 2 is an overall side view of a motorcycle to which the embodiment is applied, FIG. 3 is a plan view thereof, and FIG. FIG. 5 is a view showing the open state of the head pipe, FIG. 6 is a view showing the head pipe portion from the handle lock side, FIG. 7 is a view showing the handle lock from the direction of arrow A in FIG. 8 is a side view of the main part of the rear part of the vehicle body, FIG. 9 is a view showing the unlocking operation lever from the inner front side (in the direction of arrow B in FIG. 8), FIG. 10 is a view showing the main stand from the side, FIG. FIG. 11 is a view (a cross-sectional view taken along line 11-11 in FIG. 10) showing the main stand lock from above.
[0014]
First, an outline of a motorcycle to which the present embodiment is applied will be described with reference to FIGS. This motorcycle is of a scooter type, and the front fork 2 that supports the front wheel 1 is connected to the lower part of the handle post 4 via the bottom bridge 3 and is steered by the handle 5 provided at the upper end of the handle post 4. . The handle post 4 is rotatably supported by a head pipe 7 provided at the front end of the vehicle body frame 6.
[0015]
The vehicle body frame 6 includes a down portion 8 provided obliquely downward from the head pipe 7, a lower portion 9 that is divided from the rear end to the left and right and extends substantially horizontally rearward, and the rear end portion thereof as a diagonally upward continuous rearward portion. The rear part 10 has an extending rear part 10, and a swing type power unit 11 is swingably supported on the rear part 10. The swing type power unit 11 is provided with a rear wheel 12 so that it can be driven and rotated, and a rear cushion unit 13 is suspended from the rear part 10.
[0016]
Further, the rear portion 10 supports a container 14 that opens upward, and the opening portion is covered with a seat 15 so as to be freely opened and closed, and the rear portion of the seat 15 is locked to the rear portion 10 side with a seat lock described later. Yes. A main stand 16 is supported by the lower portion 9 below the container 14 so that it can be tilted up and down. The main stand 16 can be parked by standing, and has a main stand lock, which will be described later. It cannot be brought down to the stowed position, and as a result, traveling during theft is impossible.
[0017]
The vehicle body cover that covers the vehicle body includes a front cover 17 that covers each front part of the front fork 2 and the handle post 4 in the front part of the vehicle body, an inner cover 18 that covers the rear side thereof, a side part of the container case 14, and the like. The rear cover 19 and the like covering the side are configured. A shutter lock portion and a handle lock, which will be described later, are accommodated in a space surrounded by the front cover 17 and the inner cover 18 and cannot be seen.
[0018]
Next, the protective member of the main switch and the handle lock will be described based on FIG. 1 and FIGS. As shown in FIG. 1, a main switch 20 is firmly attached to the right side of the vehicle body of the head pipe 7 via a stay 21. The main switch 20 is a known switch for turning on and off the power to various circuits such as an ignition circuit and a lighting circuit with a key 20a (not shown). The main switch 20 is housed inside the inner cover 18 and has a key insertion slot 22 ( 4 (see FIGS. 4 and 5), only the portion faces the hole 23 formed in the inner cover 18 and is exposed to the outside.
[0019]
As shown in FIGS. 1, 4 and 5, a guide plate 24 is caulked on the end portion of the main switch 20 where the key insertion port 22 is formed, and a predetermined distance is provided between the end surface of the main switch 20. A guide-side window hole 25 is formed at a position where the key insertion opening 22 is exposed and the key 20a inserted therein is rotatable. . A shutter 26, which is an example of a protection member in the present invention, is inserted between the guide plate 24 and the end face of the main switch 20 in which the key insertion opening 22 is formed, and is slidably supported by the guide plate 24. It has become.
The guide plate 24 and the shutter 26 are made of an appropriate metal material such as iron, etc., and are strong members that cannot be easily deformed or broken by a general tool such as a screwdriver. The guide plate 24 is a member for supporting the main switch 20 so that the shutter 26 cannot be turned. However, this may be omitted depending on the structure of the shutter 26.
[0020]
The shutter 26 is slidable between a locked position (FIG. 4) which is locked by being pushed inward (to the handle post 4 side) and an unlocked position (FIG. 5) which is pulled out to the opposite side. The main body 27 guided by the guide plate 24 has a size sufficient to cover the surface of the main switch 20 where the key insertion port 22 is formed when in the locked position. A shutter side window hole 28 for exposing the key insertion opening 22 is formed.
[0021]
When the shutter-side window hole 28 is moved onto the key insertion opening 22, it is coincident with a guide-side window hole 25 formed in the same manner on the guide plate 24 side in advance, and an open position where the key insertion opening 22 is exposed. (FIG. 5). On the other hand, at other positions, the guide side window hole 25 is closed by the main body portion 27 to be a closed position where the key insertion opening 22 is hidden (FIG. 4). This closed position is also the aforementioned locked position.
[0022]
Furthermore, the head pipe 7 side end portion of the shutter 26 enters inward from a slit 29 formed on the side surface of the inner cover 18, and an engaging projection 30 formed on the tip end portion is integrated with the handle post 4. The set plate 31 can freely enter and leave the rotation locus. A return spring 32 such as a coil spring is interposed between an integral protrusion 24 a provided on the guide plate 24 and a protrusion 27 b that integrally protrudes from the side surface of the main body 27 of the shutter 26.
[0023]
When the shutter 26 is in the closed position, the outer end 27a of the main body 27 is pushed in against the elasticity of the return spring 32. At this time, the outer end portion 27a is flush with the inner cover 18, and the shutter 26 is less likely to be tampered with (FIG. 4). Further, when the engagement position is set to the open position, the engagement between the engagement protrusion 30 and the set plate 31 is released, so that the outer end 27 a side protrudes from the inner cover 18 by the restoring force of the return spring 32. At this time, when the engagement protrusion 30 comes into contact with the guide plate 24, the protrusion limit is reached (FIG. 5).
[0024]
The set plate 31 is a strong member made of a material such as an appropriate metal having a substantially L-shaped cross section. The set plate 31 is attached to the outer periphery of the lower end of the handle post 4 by welding or the like, and extends substantially from the handle post 4 in the radial direction. It bends in an L shape to form a vertical wall portion 31a parallel to the handle post 4, and its tip side forms a lower end portion 31b. The lower wall portion 31b side portion of the vertical wall portion 31a is a portion that engages and locks the engagement protrusion 30 at the lock position.
[0025]
The mounting position of the set plate 31 is provided at a position on the rear surface side and substantially in the center of the vehicle body when the vehicle goes straight, and when the steering wheel is fully turned to the left or right during parking (in this embodiment, when the vehicle body is turned to the left side) In other words, the steering post 4 is provided at a position where it can be engaged with the engaging protrusion 30 only when the handle post 4 is rotated to the rotation limit which is an angle that does not rotate during normal traveling, and the steering range during normal traveling is provided. Then, it sets so that the set plate 31 and the engagement protrusion 30 may not engage.
[0026]
Therefore, the shutter 26 is brought into the closed position by pushing the engaging projection 30 side toward the handle post 4 at the time of parking, and only when the handle post 4 is rotated to the rotation limit in this state, the vertical position of the set plate 31 is increased. The wall portion 31a is engaged with the engagement protrusion 30 and locked. This locked state is maintained by the handle lock, and the release thereof depends on the handle lock side, and is possible only when the handle lock is unlocked. Next, the handle lock will be described with reference to FIGS. 1, 6, and 7. FIG.
[0027]
The handle lock 40 is provided near the bottom bridge 3 at the lower left side of the vehicle body of the head pipe 7 (FIGS. 1 and 6) and includes a lock plate 41. The lock plate 41 is a strong, substantially L-shaped plate member made of an appropriate metal material such as iron. The lock plate 41 is pivotally attached to the support plate 43 at the center by bolts 42 and nuts 42a. A folded portion 44 is provided at the protruding end, and one end of the operation cable 45 is connected thereto. The other end of the operation cable 45 is connected to an operation lever of a main stand lock described later.
[0028]
Furthermore, one end of a return spring 46 made of a tension coil spring is engaged with the folded portion 44. The other end of the return spring 46 is engaged with the support plate 43, and the lock plate 41 is always urged to rotate clockwise in FIG. 7 by the return spring 46, and is the other projecting end of the lock plate 41. The end portion 47 is rotated to the disengaged position (solid line position in FIG. 7).
[0029]
As shown in FIGS. 1 and 7, the engaging end portion 47 is formed from a slit 51 formed at a lower portion of a guide plate 50 attached to each side portion of the head pipe 7 and the down portion 8 by bolts 48 and 49. As shown in FIG. 1, when the lock position is entered into the inside, the side projecting portion 52 integrally formed on the rear side surface of the bottom bridge 3 protrudes inside the rotation locus. ing.
[0030]
The side overhanging portion 52 is a portion that determines the rotation limit of the bottom bridge 3, and this portion abuts against a stopper 53 formed on the down portion 8 side so that the rotation is restricted and the rotation of the bottom bridge 3 is performed. It becomes a dynamic limit. At this time, the engagement end portion 47 of the lock plate 41 abuts on a step portion 54 formed on the front surface side of the side protruding portion 52, and the bottom bridge 3 rotates in the clockwise direction in FIG. It becomes a locked state to prevent.
[0031]
This locked state is possible only when the operation cable 45 is pulled during parking and the lock plate 41 is rotated counterclockwise in FIG. 7 against the elasticity of the return spring 46. When the operation cable 45 is loosened, it is locked. The plate 41 is rotated in the clockwise direction by the restoring force of the return spring 46, escapes from the slit 52, and enters a normal unlocked state. That is, the lock plate 41 can be rotated in the counterclockwise direction of FIG. 7 to change between a locked position where the engaging end 47 enters the inside of the guide plate 50 from the slit 41 and an unlocked position where it is released. It is.
[0032]
A stem pipe 3a extends upward in the center of the rear portion of the bottom bridge 3, and an upper end portion thereof is fitted to a lower end portion of the handle post 4 supported by the head pipe 7 so that the handle post 4, the bolt 55, and the nut are fitted. 56, the handle post 4, the stem pipe 3a, and the bottom bridge 3 are integrally rotated when the handle 5 is rotated. 1 and 7, the handle lock 40 is located inside the front cover 17 and the inner cover 18 and is covered with these vehicle body covers. The same applies to the lock portion of the shutter 26.
[0033]
Next, the operation lever and the main stand lock will be described with reference to FIGS. First, as shown in FIG. 8, the seat 15 is locked to the vehicle body side by a seat lock 57 supported by the rear portion 10, and unlocked by the same key 20 a as the main switch 20. As will be described in detail later, an operation lever 58 (FIG. 1) as a lock release operation member is provided in the container 14, and one end of the operation cable 59 is connected to the operation lever 58, and the other end is connected to the main stand 16. It is connected to the main stand lock provided and can be released.
[0034]
The main stand lock is a device for preventing theft during parking, and the main stand 16 is kept standing and cannot be run unless the seat lock 57 is released and the operation lever 58 is properly operated. It is. On the other hand, when the operation lever 58 is properly operated and the main stand lock is released, the main stand 16 is tilted and stored to be able to run.
[0035]
The operation cable 59 is wired along the inner side of the rear portion 10, and the handle lock operation cable 45 is branched at a joint portion 60 provided in the middle thereof. The operation cable 45 branched from the joint portion 60 is wired to the handle lock inside the vehicle body cover along the lower portion 9 and is pulled together with the operation cable 59 when the operation lever 58 is rotated in the unlocking direction. It is designed to unlock.
[0036]
A stand bracket 62 is welded to the cross member 61 that connects the rear end portions of the left and right lower portions 9, and the stand bracket 62 forms a wall portion 63 around the periphery and forms a container shape that opens upwardly. An upper end portion of the main stand 16 is rotatably attached to the rear end portion via a rotation shaft 64, and the upper end portion is locked by a main stand lock. The main stand 16 is biased by a reversing spring (not shown) and selectively rotates to either the standing position or the storage position.
[0037]
FIG. 9 is a view showing the inner rear part of the container case 14 from the front (in the direction indicated by the arrow B in FIG. 8). As shown in this figure, the operation lever 58 is constituted by the support shaft 65 to constitute a part of the container case 14. The wall 66 is rotatably supported inside. One end of the support shaft 65 passes through the rear wall 66 and protrudes rearward. An arm 67 is provided integrally therewith, and one end of the operation cable 59 is connected to the tip thereof. The rotation of the operation lever 58 is restricted by stopper slopes 68 a and 68 b formed on the left and right of the upper end of the stopper plate 68 attached to the rear wall 66.
[0038]
When the arm 67 is in the locked position indicated by the solid line in which the operation lever 58 is rotated clockwise in the drawing and brought into contact with the stopper inclined surface 68b, the operation cable 59 is pulled and rotated to the opposite side to stop the arm 67. The operation cable 59 is loosened at an unlock position indicated by a virtual line brought into contact with the slope 68a.
[0039]
The operation lever 58 is fixed to the lock position or the unlock position by reversing the rotation direction of the arm 67. That is, by setting the operation cable 59 in the lock position or the unlock position so as to pass through the opposite side across the center of the support shaft 65, the operation lever 58 is indicated by the lock position indicated by the solid line and the unlock position indicated by the virtual line. , The rotation direction of the arm 67 is reversed with the center of the support shaft 65 as a dead point, and the position is determined by the elasticity of the return springs 46 and 75 described later at this reverse rotation position.
[0040]
In the drawing, reference numeral 66a denotes an entrance / exit slit of a lock fitting 57a provided on the bottom surface of the seat, and 57b denotes a hook of the seat lock 57 engaged therewith. The seat lock 57 is attached to a cross pipe 69 provided between the upper portions of the left and right rear portions 10 constituting the vehicle body frame 6.
[0041]
Next, details of the main stand lock will be described. As shown in FIGS. 10 and 11, the stand bracket 62 surrounds the periphery with a wall portion to form a substantially sealed space in which it is difficult to put a hand from the outside, and the main stand lock 70 is accommodated in this space.
[0042]
The main stand lock 70 includes a lock plate 73 supported on a support plate 71 fixed inside the stand bracket 62 so as to be rotatable around a support shaft 72, and an operation cable is connected to one end 74 of the lock plate 73. 59 and each end of the return spring 75 are connected. The other end of the return spring 75 is locked to the support plate 71.
[0043]
The end opposite to the one end 74 across the support shaft 72 of the lock play 73 forms an engaging end 76 and fits into a bracket-side slit 79 formed in the joining portion of the reinforcing plate 77 and the rear vertical wall 78. In addition, it is possible to enter and exit the stand-side slit 81 formed in the upper wall 80 of the main stand 16 in the standing state.
[0044]
The stand side slit 81 coincides with the bracket side slit 79 only when the main stand 16 is in the standing state, and the engagement end portion 76 of the lock plate 73 can be fitted therein. When the engagement end portion 76 is engaged with the stand-side slit 81, the main stand 16 is locked and cannot rotate, and thus remains in an upright state.
[0045]
The return spring 75 constantly urges the lock plate 73 to rotate clockwise in FIG. 11 and causes the engagement end portion 76 to escape from the stand-side slit 81, thereby bringing the unlocking position indicated by the phantom line in the figure. . On the other hand, the operation cable 59 is rotated in the counterclockwise direction against the elasticity of the return spring 75 to engage the engagement end portion 76 with the stand-side slit 81, so that the solid line in FIG. The lock position shown in
[0046]
Reference numeral 82 in the drawing denotes a rotation stopper, which abuts against the reinforcing plate 77 at the locked position and abuts against the corner 83 of the support plate 71 at the unlocked position, thereby restricting the rotation of the lock plate 73. ing.
[0047]
Next, the operation of this embodiment will be described. First, when locking at the time of parking, the main switch 20 is turned off, the key 20a is removed, the main stand 16 is set up, the parking is performed, the shutter 26 is pushed into the closed position, and then the handle 5 is turned to the left side of the vehicle body to the turning limit. As a result, the set plate 31 of the handle post 4 is engaged with the engaging protrusion 30 of the shutter 26 and the shutter 26 is locked by the set plate 31.
[0048]
Subsequently, when the key lock portion of the seat lock 57 is unlocked with the key 20a, the lock is released to open the seat 15, and when the operation lever 57 in the container 14 is turned to the lock position, the arm 67 is turned. Since the operation cable 59 is pulled by this, the operation cable 45 interlocked therewith is also pulled against the elasticity of the return spring 46, and the engagement end portion 47 of the lock plate 41 is stepped at the side overhanging portion 52 of the bottom bridge 3. The handle lock 40 is brought into a locked state by coming into contact with the portion 54.
[0049]
At the same time, in the main stand lock 70, the operation cable 59 is pulled against the elasticity of the return spring 75, so that the engagement end portion 76 of the lock plate 73 is fitted into the stand-side slit 81 to be locked. Since this locked state is maintained unless the operation lever 58 is rotated, the seat 15 is closed and sealed in the container 14 so that the operation lever 58 is not inadvertently operated. Lock to.
[0050]
On the contrary, when releasing the lock for traveling, the seat lock 57 is released by the key 20a, the seat 15 is opened, and the operation lever 58 in the container 14 is rotated to the unlock position, so that the operation lever 58 is integrated. The arm 67 also rotates in the reverse direction to loosen the operation cable 59. Then, in the main stand lock 70, the lock plate 73 is rotated to the unlocked position by the elastic force of the return spring 75, and the engaging end portion 76 comes out of the stand side slit 81, so that the main stand 16 can be tilted and stored. .
[0051]
At the same time, the operation cable 45 is also loosened, and the engagement end portion 47 of the lock plate 41 is rotated to the unlock position by the elasticity of the return spring 46 and comes into contact with the step portion 54 in the side protruding portion 52 of the bottom bridge 3. As a result, the handle lock 40 is unlocked, and the handle 5 can be freely rotated.
[0052]
As a result, when the handle 5 is rotated to the rotation range in the normal travel, the set plate 31 disengages from the engagement protrusion 30 of the shutter 26 and the movement of the shutter 26 becomes free. The shutter-side window hole 28 coincides with the guide-side window hole 24 of the guide plate 24 and becomes an unlock position where the key insertion port 22 of the main switch 20 is exposed.
[0053]
Then, the seat 15 is closed again, the main stand 16 is accommodated, the key 20a is inserted into the exposed key insertion slot 22 of the main switch 20, and the main switch 20 is turned on, the vehicle can run.
[0054]
As described above, according to the present embodiment, the unlocking operation of the shutter 26 is also performed by the handle lock 40, and the unlocking operation of the handle lock 40 is performed by the operation lever 58 housed in the container case 14. Thus, it is not necessary to provide a key lock portion to be directly released by the key 20a on the handle lock or the shutter 26 and to expose the key insertion opening. Accordingly, the lock of the shutter 26 and the handle lock 40 can be prevented from being exposed, so that there is no possibility of inducing destructive actions on them.
[0055]
Moreover, it is possible to eliminate the need for providing a dedicated key lock portion for the lock of the handle lock 40 or the shutter 26. Further, since the operation lever 58 is covered with the seat 15 fixed to the vehicle body side by the seat lock 57, the seat lock 57 can be used effectively. Therefore, the key lock portion only needs to be provided on the seat lock 57, and it is not necessary to provide a dedicated key lock portion for each of the other locks. Therefore, the number of parts can be reduced, the structure can be simplified, and the entire apparatus can be reduced in cost. .
[0056]
In addition, since the operation lever 58 is used for unlocking each of the handle lock 40 and the main stand lock 70, the unlocking function of each locking device can be integrated into one operation lever 58, and the number of parts can be reduced. In addition, the handle lock 40 and the main stand lock 70 which are the same purpose can be simultaneously released to prevent theft, thereby improving the operability.
[0057]
In addition, when the handle 5 is steered to a predetermined angle, that is, the rotation limit, the engagement projection 30 of the shutter 26 in a state where the key insertion port 22 is closed and the set plate 31 are engaged to lock the movement of the shutter 26. In addition, while the steering wheel 5 is turned to the turning limit, the engaged state is maintained and the set plate 31 is provided on the handle post 4, so that the lock of the shutter 26 is interlocked with the turning limit turning of the handle 5. The locking mechanism can be made relatively simple and reliable. As a place where the set plate 31 is provided, other than the handle post 4, other steering members that rotate in conjunction with the steering of the handle 5 such as the stem pipe 3a are possible.
[0058]
Next, a second embodiment will be described based on FIG. This embodiment is characterized in that the shutter can be locked even after the handle is turned off, and the other parts are not changed from the previous embodiment, so that the feature points are central and common. The function will be described using the same reference numerals. FIG. 12 is a diagram illustrating a lock process of the shutter 26 corresponding to FIG. 4. In FIG. 12, A indicates an unlock position, B indicates a state during locking, and C indicates a lock position.
[0059]
As is apparent from this figure, the shutter 26 has a shutter-side window hole 28 that exposes the key insertion opening 22 of the main switch 20 in the unlocked position, and is slidable with respect to the main switch 20, and the handle post 4. The lock piece 90 which is an example of a height change part is provided in the inner edge part which is a side. The lock piece 90 includes a guide slope 91 and is accommodated in the fitting recess 92 so that the lock piece 90 can protrude and retract in a direction parallel to the axis of the handle post 4.
[0060]
The lock piece 90 is projected and urged by a compression coil spring 93. The amount of protrusion of the lock piece 90 is such that the vertical wall portion 94 is perpendicular to the axis of the handle post 4 in the sliding direction of the shutter 26, that is, the vertical wall portion 31a of the set plate 31. When the shutter 26 is retracted, the lock piece 90 can pass through the lower end 31b of the set plate 31 as the shutter 26 slides.
[0061]
A shoulder portion 95 is provided on the upper portion of the lock piece 90, and serves as a stopper that abuts against the tip of the guide plate 24 provided above the shutter 26 with a predetermined protrusion limit. The guide plate 24 is the same as in the previous embodiment, and a guide-side window hole 25 is provided at a position corresponding to the key insertion port 22 of the main switch 20 so that when the shutter 26 is opened, it coincides with the shutter-side window hole 28. It has become.
[0062]
Therefore, as shown by A in the figure, before pushing the shutter 26 in the unlocked position of the shutter 26, the handle is cut to the turning limit first, and as a result, the set plate 31 is brought into a position where it interferes with the lock piece 90. However, if the shutter 26 is pushed in this state, the lock piece 90 gradually fits against the elasticity of the coil spring 93 as the guide slope 91 slides with the lower end 31b of the set plate 31 as shown in FIG. It sinks into the concavity 92.
[0063]
Eventually, when the lock piece 90 passes through the lower end 31b of the set plate 31 and reaches the vicinity of the handle post 4 which is the inner side, the contact between the lower end 31b of the set plate 31 and the guide slope 91 is lost. Is protruded upward in the figure by the coil spring 93, and its vertical wall portion 94 overlaps with the vertical wall portion 31a of the set plate 31 in the sliding direction, so that it is locked so that it cannot slide in the extraction direction. As a result, the shutter-side window hole 28 is shifted from the key insertion opening 22 and is hidden below.
[0064]
Thus, according to the present embodiment, the shutter 26 can be locked later even when the handle is cut first. In addition, if the shutter 26 is pushed in before the handle is cut, it is natural that the shutter 26 can be locked as in the previous embodiment. Therefore, it can be locked at any time before or after the handle is cut. Even after locking, the shutter 26 can be quickly locked as soon as it is noticed, so that the operability is further improved.
[0065]
The present invention is not limited to the above-described embodiments, and various modifications and applications are possible within the same inventive principle. For example, the unlocking operation member is not necessarily required to be shared with the main stand lock, and can be provided exclusively for the handle lock when the main stand lock is not provided or when it is desired to be used separately from the main stand lock. Even if it does in this way, the effect of not providing a key lock part in a shutter lock and a handle lock, and making these locks common can be maintained.
[0066]
Further, the protection member for the main switch is not limited to the plate-like shutter, and it is sufficient if it has the same function regardless of the name or shape, such as a rod-like member as in the conventional example. The same applies to the operation lever, and various non-lever shaped unlocking operation members are possible. Moreover, various other known structures can be used for the shutter opening / closing mechanism, the handle lock mechanism, and the main stand lock mechanism.
[0067]
In addition, by changing the shape of each shutter of the first and second embodiments, the handle can be automatically locked by rotating it to the limit without being pushed in consciously. In this way, the operability is further improved. Further, in the second embodiment, the end of the shutter to be locked can be replaced with a lock piece if it is a height changing portion having a mechanism whose height changes due to protrusions and depressions, and such a variable height. Various known mechanisms can be used as the mechanism.
[Brief description of the drawings]
FIG. 1 is a sectional view of an essential part according to a first embodiment (FIGS. 1 to 11).
[Fig. 2] Overall side view of motorcycle
FIG. 3 is a plan view thereof.
FIG. 4 is a diagram showing a shutter lock position.
FIG. 5 is a diagram showing the unlock position of the shutter.
FIG. 6 is a side view of the main part showing the handle lock part.
FIG. 7 is a diagram showing from the direction of arrow A in FIG.
FIG. 8 is a side view of the main part of the rear part of the vehicle body
FIG. 9 is a diagram showing the unlocking operation unit from above.
FIG. 10 is a side view of the main stand.
11 is a sectional view taken along line 11-11 in FIG.
FIG. 12 is a diagram corresponding to FIG. 3 according to the second embodiment.
[Explanation of symbols]
3: bottom bridge, 4: handle post, 5: handle, 6: body frame, 7: head pipe, 10: rear part, 14: storage compartment, 15: seat, 16: main stand, 18: inner cover, 20: main Switch: 22: Key insertion slot, 26: Shutter, 28: Shutter side window hole, 30: Engagement protrusion, 31: Set plate, 40: Handle lock, 41: Lock plate, 45: Operation cable, 46: Return spring, 57: Seat lock, 58: Unlock operation lever, 59: Operation cable, 62: Stand bracket, 70: Main stand lock, 73: Lock plate, 75: Return spring, 76: Engagement end, 81: Stand side slit , 90: Rock piece, 91: Guide slope

Claims (4)

In the antitheft device for a motorcycle, which includes a protective member that covers the key insertion port of the main switch so that it can be opened and closed and is locked when the key insertion port is closed, the unlocking of the protective member unlocks the handle lock. It is possible only when locked, and the unlocking operation member of the handle lock is accommodated in a container, its opening is covered with a seat so that it can be opened and closed, and this seat is fixed to the vehicle body with a seat lock. The anti-theft device for motorcycles. A main stand is provided below the container case, a main stand lock is provided for locking the main stand in an upright state, and each unlocking operation of the main stand lock and the handle lock is performed by the lock releasing operation member. The antitheft device for a motorcycle according to claim 1, wherein the antitheft device is for motorcycles.   An engagement portion that locks the end portion of the protection member is provided on the handle post, and a height that engages with the engagement portion by changing the height when pushed into the end portion of the protection member toward the engagement portion. The antitheft device for a motorcycle according to claim 1, further comprising a height changing portion.   In an antitheft device for a motorcycle that covers a key insertion opening of a main switch so as to be freely opened and closed and is locked in a state in which the key insertion opening is closed, the steering wheel is locked while being steered at a predetermined angle. The lock mechanism is provided on a steering member such as a handle, and when the handle is steered at the predetermined angle, the lock mechanism is engaged with the protection member to lock its movement and maintain this engagement state. An anti-theft device for a motorcycle, comprising a set plate for carrying out the operation.

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