Patent Grant
10538285
The present invention relates to (i) a handlebar locking mechanism which can be mounted in a moving body whose traveling direction is changed by a handlebar and (ii) a handlebar locking device, and (iii) a moving body.
There are cases where a handlebar of a bicycle or the like turns by itself while the bicycle or the like is parked. If an item is placed in a basket which is attached particularly above a front wheel, then the handlebar may easily turn due to the weight of the item. This may unfortunately cause the bicycle to fall. Therefore, there have conventionally been known handlebar locking devices that restrict rotation of handlebars.
For example, Patent Literature 1 discloses a handlebar locking device which locks a handlebar by (i) attaching a bifurcated stopper piece at an upper part of a front fork of a bicycle so that the stopper piece can swing vertically and (ii) sandwiching a main frame with the stopper piece.
Patent Literature 2 discloses a handlebar locking device which locks a handlebar by pressing and fitting a handlebar fixing member, which is slidably provided, into a receiving member which is attached, against a pressure of a first spring member, to a steering column pipe of a bicycle.
Meanwhile, motorcycles and the like are conventionally configured so that, for the purpose of preventing theft, a key cannot be removed while a handlebar of a motorcycle is turned.
[Patent Literature 1]
[Patent Literature 2]
As in the cases of motorcycles and the like, a moving body which changes its traveling direction with a handlebar can be made difficult to steal by parking the moving body while the handlebar is locked in a turned position. Note, however, that this configuration is not limited to bicycles. Therefore, a handlebar locking device can not only prevent falling of a moving body but also serve as a lock for preventing theft.
However, according to the configuration of the handlebar locking device disclosed in each of Patent Literatures 1 and 2, the handlebar locking device itself is provided on a moving body such as a bicycle so as to be exposed. This unfortunately allows not only a user but also anybody to unlock the handlebar locking device by operating a stopper piece or handlebar fixing member. Therefore, conventional handlebar locking devices for preventing falling of a moving body cannot be used by themselves as locks for preventing theft.
It is alternatively possible that a separate lock for maintaining a lock state is provided on a handlebar locking device so that nobody except for a user possessing a key to the lock can release the lock. However, since the handlebar locking device is exposed, the lock can be relatively easily released in a case where a forcible method such as breaking the handlebar locking device is used.
The present invention has been made in view of the problem, and it is an object of the present invention to provide a handlebar locking mechanism and a handlebar locking device, each of which (i) can be used for a moving body whose traveling direction is changed with a handlebar and (ii) which makes it difficult to unlock the handlebar by a forcible method such as breaking.
In order to attain the object, a handlebar locking mechanism in accordance with an aspect of the present invention is a handlebar locking mechanism to be mounted in a moving body whose traveling direction is changed by a handlebar, including: an engaging section which is a hole or a recess made in a shaft that rotates along with the handlebar; a lock pin which locks the handlebar in a case where a tip part of the lock pin is engaged with the engaging section; and a lock pin drive mechanism which (i) moves, in a case where the handlebar is to be locked, the lock pin so that the tip part is engaged with the engaging section and (ii) moves, in a case where the handlebar is to be unlocked, the lock pin so that the tip part is removed from the engaging section, the engaging section, the lock pin, and the lock pin drive mechanism being contained and provided in an exterior component of the moving body so as to be not viewable from outside of the moving body.
According to the configuration, in a case where the handlebar is to be locked, the lock pin drive mechanism moves the lock pin so that the tip part of the lock pin is engaged with the engaging section which is a hole or a recess made in the shaft that rotates along with the handlebar. This restricts the rotation of the handlebar, so that the handlebar is locked. In a case where the handlebar is to be unlocked, the lock pin drive mechanism moves the lock pin so that the tip part is removed from the engaging section. This releases the restriction of the handlebar, and therefore allows the handlebar to be rotated.
In addition, according to the configuration, the engaging section, the lock pin, and the lock pin drive mechanism are contained and provided in the exterior component of the moving body so as to be not viewable from outside of the moving body. This makes it difficult to unlock a handlebar by a forcible method such as breaking the handlebar locking mechanism. In addition, in a case where, while the handlebar is locked, the handlebar is turned to such an extent that it is difficult for moving body to travel straight, the handlebar locking device can be used as a lock for preventing theft.
An aspect of the present invention brings about an effect of, for example, being able to provide a handlebar locking mechanism and a handlebar locking device, each of which (i) can be used for a moving body whose traveling direction is changed with a handlebar and (ii) which makes it difficult to unlock the handlebar by a forcible method such as breaking.
The following description will discuss a handlebar locking mechanism and a handlebar locking device in accordance with an embodiment of the present invention in detail with reference to the drawings.
(Configuration of Bicycle 1)
As illustrated in (a) and (b) of
The handlebar locking device 20 is contained in the frame 2, so that the handlebar locking device 20 is not viewable from outside. At a center part of the handlebar 5, there is provided a user interface 8 which connects a user to the bicycle 1. The user interface 8 is herein a touch panel, for example. The user interface 8 can receive instructions and can display various pieces of information from the bicycle 1 of which the user is to be notified.
The frame 2 includes a plurality of members including, for example, a head tube, a top tube, a down tube, and a seat tube. Of these, the head tube 12 is located above the front wheel 3, and a shaft 11a of the front fork 11 is inserted into the head tube 12 (see (c) of
To an upper end of the front fork 11 (upper end of the steering column 11a), a handling system 10 is attached so as to connect the front fork 11 to the center part of the handlebar 5. This allows the handlebar 5 and the front fork 11 to move together so that it is possible to transmit rotation of the handlebar 5 to the front wheel 3.
To the head tube 12, a top tube 13 and a down tube 14 are connected. According to the present embodiment, (i) a diameter of the down tube 14 located below is larger than that of the top tube 13 and (ii) the handlebar locking device 20 is contained in the down tube 14. Although not particularly illustrated, the down tube 14 has a cover or the like for providing and removing the handlebar locking device 20. The cover is configured so as to be constantly locked to prevent anyone other than the user possessing the key from accessing the handlebar locking device 20.
The handlebar locking device 20 includes a lock pin and a lock pin drive mechanism for moving the lock pin. The handlebar locking device 20 locks the handlebar 5 by restricting the rotation of the handlebar 5 through engaging a tip part of the lock pin with an engagement hole (engaging section) in the steering column (axis) 11a which rotates along with the handlebar 5. As described above, the handlebar locking device 20 is contained and attached in the down tube 14 so that neither the handlebar locking device 20 nor the engagement hole in the steering column 11a can be viewed from the outside of the bicycle 1.
(Schematic Configuration of Handlebar Locking Device 20)
The lock pin unit 30 supports the lock pin 31 so that the lock pin 31 can move axially. The lock pin unit 30 controls the lock pin 31 to move along with movement of a slider 42 of the drive unit 40 (described later) so that the pin tip part 31a protrudes from or is retracted into 32b of an adapter 32.
The drive unit 40 controls the slider 42 to move as described above. The drive unit 40 includes a plate-like case 48 on which a motor 51, a screw shaft 46, and the like are mounted in addition to the slider 42. The lock pin drive mechanism is constituted by (i) the members of the lock pin unit 30 other than the lock pin 31 and (ii) the drive unit 40.
The control unit 60 communicates with a device outside of the handlebar locking device 20. In a case where the control unit 60 receives a signal instructing locking or unlocking of the handlebar 5, the control unit 60 controls the movement of the slider 42 of the drive unit 40. The control unit 60 is also configured so as to (i) identify positions of the slider 42 and of the lock pin 31, (ii) judge, based on information about the positions thus identified, an operation state of the handlebar locking device 20, and then (iii) outputs a result of the judgment from the handlebar locking device 20. The control unit 60 includes a lock status identifying section and a notification processing section.
The front cover 70 and the rear cover 71 are each a box-shaped member having one side open. The front cover 70 covers a front half of the handlebar locking device 20, and the rear cover 71 covers a rear half of the handlebar locking device 20.
The drive unit 40 and the control unit 60 are configured to be integrated together with use of screws or the like. An integrated member thus obtained is combined with the front cover 70 and the rear cover 71 so that the plate-like case 48 is sandwiched between the front cover 70 and the rear cover 71. A combined member thus obtained is then fixed with use of screws or the like from both directions in which the plate-like case 48 is sandwiched.
The front cover 70 has, on a front surface thereof, an opening 70a through which the lock pin unit 30 is to be inserted from outside. The lock pin unit 30 is to be inserted through the opening 70a and then fixed with use of screws or the like while the adapter 32 is exposed.
(Detailed Configuration of Handlebar Locking Device 20)
The configuration of the handlebar locking device 20 will be described in more detail below with reference to
A configuration of the lock pin unit 30 will be described first with reference to
The lock pin 31 includes (i) a thick shaft 31b included in the pin tip part 31a and (ii) a thin shaft 31c at a center part, and (iii) a thin plate part 31d located toward a rear end. A difference in diameter results in a first step 31e between the thick shaft 31b and the thin shaft 31c. The thin shaft 31c has a groove 31g into which the retaining ring 37 for fixing the lock pin 31 to the holder 36 is to be fitted. The thin plate part 31d is provided so as to (i) pass through a rectangular hole 48b of the plate-like case 48 of the drive unit 40 and (ii) protrude toward a rear side (back side) of the plate-like case 48. The thin plate part 31d serves as a detection piece for front and rear lock pin position sensors S3 and S4 which are provided in the control unit 60 (described later). The thin plate part 31d will be hereinafter referred to as lock pin-specific detection piece 31d.
The adapter (front side support member) 32 has, on an outer peripheral part thereof, an attachment part 32a having a flanged shape. After the adapter 32 is incorporated into the other members included in the lock pin unit 30, the adapter 32 is attached to an outer surface of the front cover 70 via the attachment part 32a with use of screws or the like. In addition, the adapter 32 has a shaft hole 32b into which the lock pin 31 is to be inserted. The adapter 32 also has, on a rear side (back side) thereof, an insertion recess 32c which is connected to the shaft hole 32b and into which a flange part 36a-side of the holder 36 is inserted.
The shaft hole 32b has an inner diameter corresponding to the thick shaft 31b. The insertion recess 32c has an inner diameter corresponding to an outer diameter of the flange part 36a which is larger in diameter than the shaft hole 32b. A space between the shaft hole 32b and the insertion recess 32c expands in a mortar-like shape toward the insertion recess 32c. A first pressing part 32d for pressing a tip of the first spring 33 against a bottom part of the mortar is provided.
Meanwhile, the holder (rear side support member) 36 has the flange part 36a on a front outer peripheral part thereof as described above. The flange part 36a-side is inserted into the insertion recess 32c of the adapter 32 and then slid in the insertion recess 32c. In a case where a rear surface (back surface) of the flange part 36a is pressed against an outer peripheral part of the opening 70a of the front cover 70, the holder 36 is restricted from moving backwards. This causes the holder 36 to move along the axis of the lock pin 31 in the insertion recess 32c.
The holder 36 also has a shaft hole 36b into which the lock pin 31 is to be inserted. The shaft hole 36b has an inner diameter corresponding to the thick shaft 31b. A rear end part of the shaft hole 36b forms a bottom part 36c by being narrowed to an inner diameter corresponding to the thin shaft 31c. At a front surface of the bottom part 36c, a second pressing part 36d for pressing a rear end of the second spring 35 against the front surface of the bottom part 36c is provided. At a rear surface (back surface) of the bottom part 36c, a third pressing part 36e is provided. Against the third pressing part 36e, the retaining ring 37 attached to the thin shaft 31c is pressed against.
The lock pin 31 has a length so that, while the pin tip part 31a is retracted, (i) the thick shaft 31b reaches the flange part 36a of the holder 36 and (ii) the lock pin-specific detection piece 31d reaches the rear lock pin position sensor S4 so as to shade the rear lock pin position sensor S4.
The first spring 33 is provided around an outer circumference of the thick shaft 31b. The first spring 33 is provided in the adapter 32 while (i) the tip of the first spring 33 is pressed against the first pressing part 32d of the adapter 32 and (ii) a rear end of the first spring 33 is pressed against the flange part 36a inserted into the insertion recess 32c.
Meanwhile, the second spring 35 is provided around an outer circumference of the thin shaft 31c. The second spring 35 is provided in the holder 36 while (i) a tip of the second spring 35 is pressed against the first step 31e between the thick shaft 31b and the thin shaft 31c and (ii) a rear end of the second spring 35 is pressed against the second pressing part 36d of the holder 36.
The lock pin unit 30 is integrated with the adapter 32 by (i) inserting the first spring 33, the lock pin 31, the second spring 35, and the holder 36 in this order into the adapter 32 and then (ii) fixing the retaining ring 37 to the groove 31g. In this state, the lock pin 31 is fixed to the holder 36 with the retaining ring 37 and the second spring 35. With the retaining ring 37 and the second spring 35, a latching part is constituted so as to cause the lock pin 31 to move along with the holder 36 by latching the lock pin 31 onto the holder 36 until the holder 36 moves to a position so that the first spring 33 is completely compressed.
A configuration of the drive unit 40 will be described next with reference to
The plate-like case 48 has a circular hole 48a at an upper part of a center part. A rear end part of the screw shaft 46 is inserted into the circular hole 48a through the second bearing 43. The screw shaft 46 is provided parallel to the lock pin 31. A front end part of the screw shaft 46 is supported by the first bearing 41 attached to the inside of the front cover 70. To the rear side of the plate-like case 48, the motor 51 is attached via the motor bracket 50. The motor 51 is a motor which can be rotated reversibly. The rear end part of the screw shaft 46 is connected to a drive shaft of the motor 51 at the coupling 49. This allows the screw shaft 46 to reversibly rotate in response to driving of the motor 51.
Into the nut 44, the screw shaft 46 is screwed. The nut 44 is fixed to the slider 42. The slider 42 has circular holes 42a and 42b which are arranged vertically. The screw shaft 46 is inserted into the circular hole 42a above. The lock pin 31 is inserted into the circular hole 42b below.
The third bearing 52 is attached to an upper part of the slider 42. The shaft 47 is inserted into the third bearing 52. The shaft 47 is fixed to the plate-like case 48 and to the inside of the front cover 70, and is provided parallel to the lock pin 31.
The upper part of the slider 42 is fixed to the shaft 47 via the third bearing 52. Therefore, in a case where the screw shaft 46 rotates, the nut 44 moves parallel to the axis of the screw shaft 46. This causes the slider 42 to move parallel to the nut 44. The nut 44 moves in a direction corresponding to a direction of rotation of the screw shaft 46. Specifically, in a case where the screw shaft 46 positively rotates, the nut 44 moves from a home position in a direction in which the lock pin 31 is to be pushed out (hereinafter, such a direction will be referred to as “push-out direction”). In a case where the screw shaft 46 negatively rotates, the nut 44 moves in a direction back to the home position, which is the opposite the push-out direction.
A surface 42c around the circular hole 42b of the slider 42 serves as a contact surface. In a case where the slider 42 moves in the push-out direction, the surface 42c comes into contact with a rear end part of the holder 36 in the lock pin unit 30 so as to cause the holder 36 to move in the push-out direction. The circular hole 42b is formed so as to be larger than an outer diameter of the retaining ring 37 attached to the lock pin 31, so that a part of the lock pin 31, which part is located at the retaining ring 37, can pass through the circular hole 42b. In this way, in a case where (i) the holder 36 is pushed by the slider 42 to move in the push-out direction and (ii) the lock pin 31 cannot move in the push-out direction along with the holder 36, it is still possible to allow the lock pin 31 to move backwards. The slider 42, the screw shaft 46, the motor 51, the shaft 47, and the like constitute a push-out section.
To a bottom part of the slider 42, the slider-specific detection piece 45 is attached. The slider-specific detection piece 45 is a detection piece for front and rear slider position sensors S1 and S2 (described later) which are provided on the control unit 60.
The plate-like case 48 has rectangular holes 48b and 48c. Through the rectangular holes 48b and 48c, the slider-specific detection piece 45 and the lock pin-specific detection piece 31d at the rear end part of the lock pin 31 (described earlier) protrude to the rear side (back side) of the plate-like case 48.
The lock pin unit 30 and the drive unit 40 constitute the drive mechanism for the lock pin 31. The driving mechanism can be described as follows. That is, the drive mechanism of the lock pin 31 includes (I) the adapter (front side support member) 32 through which the lock pin 31 passes and which (i) supports an outer circumference of the pin tip part 31a of the lock pin 31 so that the lock pin 31 can move axially, (ii) has a front end part from which the pin tip part 31a protrudes, and (iii) has an insertion recess 32c that is located at a rear end part of the adapter 32 and that is provided axially, (II) the holder (rear side support member) 36 through which the lock pin 31 passes and which (i) supports an outer circumference of a part of the lock pin 31, which part is located behind the pin tip part 31a, so that the lock pin 31 can move axially and (ii) has a front end part that is inserted into the insertion recess 32c of the adapter 32 so as to slide in the insertion recess 32c, (III) the slider 42 and the like constituting a push-out section which is configured so that (i) while the handlebar 5 is locked, the push-out section is in contact with the holder 36 so as to push out the holder 36 in a forward direction in which the pin tip part 31a protrudes and (ii) while the handlebar 5 is unlocked, the push-out section returns to a home position at which the push-out section was located before pushing out the holder 36, (IV) the first spring 33 which is provided between the adapter 32 and the holder 36 and which becomes compressed in a case where the holder 36 is pushed out in the forward direction by the slider 42 and the like, (V) the latching part (second spring 35, retaining ring 37) which causes the lock pin 31 to move along with the holder 36 by latching the lock pin 31 onto the holder 36 until the holder 36 moves to a position so that the first spring 33 is completely compressed, and (VI) the second spring 35 which is provided between the lock pin 31 and the holder 36 and which becomes compressed in a case where the lock pin 31 moves towards the rear end part of the holder 36 while the latching by the latching part is released.
According to the configuration, the lock pin 31 passes through the adapter 32 and the holder 36 so that the lock pin 31 is supported so as to be able to move axially. The pin tip part 31a protrudes from the front end part of the adapter 32 which supports a tip part of the lock pin 31. The holder 36, which supports the lock pin 31 behind the adapter 32, is configured so that the front end part of the holder 36 is inserted into the insertion recess 32c of the adapter 32 so as to slide in the recess 32c. While the handlebar 5 is locked, the holder 36 is pushed out by the slider 42 and the like in a forward direction in which the pin tip part 31a protrudes.
The first spring 33 is provided between the adapter 32 and the holder 36, and is compressed by the holder 36 being pushed out in the forward direction. While the handlebar 5 is unlocked, in a case where the slider 42 and the like return to the home position at which the slider 42 and the like were located before pushing out the holder 36, the holder 36 also returns to an original position due to a restoring force of the first spring 33.
While the holder 36 is moving to the position so that the first spring 33 is completely compressed, the lock pin 31 is latched onto the holder 36 by the latching part. This allows the lock pin 31 to move along with the holder 36, so that the pin tip part 31a protrudes from the adapter 32. In a case where the holder 36 returns to the original position, the lock pin 31 returns to an original position along with the holder 36.
The second spring 35 is provided between the lock pin 31 and the holder 36. In a case where the latching by the latching part is released so that the pin tip part 31a cannot protrude sufficiently from the adapter 32, the second spring 35 is compressed so as to allow the lock pin 31 to move towards the rear end part of the holder 36. In this way, even in a case where the pin tip part 31a is not aligned with an engagement hole 11c when the slider 42 and the like push out the holder 36, it is still possible that, when the tip part of the lock pin is aligned with the engagement hole 11c later, the pin tip part 31a protrudes out due to a restoring force of the second spring 35 so as to be engaged with the engagement hole 11c.
A configuration of the control unit 60 will be described next with reference to
Such a substrate 61 is attached to a bottom surface of the substrate bracket 62. A top surface of the substrate bracket 62 is attached to the motor bracket 50 of the drive unit 40. On the substrate bracket 62, the battery 64 can be mounted via the battery holder 63 which is attached to the substrate bracket 62.
Although the configuration in which the handlebar 5 is locked while turning leftwards is shown as an example, it is alternatively possible to lock the handlebar 5 while the handlebar 5 is turning rightwards. Alternatively, it is also possible to make two engagement holes 11c so that the handlebar 5 can be locked while turning rightwards or leftwards. Alternatively, it is also possible to lock the handlebar 5 while the handlebar 5 is turning rightwards or leftwards by a maximum angle possible from the direction facing the front. Preferably, a width of the engagement hole 11c has an allowance so as to be larger than a width of the pin tip part 31a. This allows the pin tip part 31a to pass through the engagement hole 11c while the handlebar 5 is turning by a wider angle, and therefore prevent an incomplete lock state (described later) from occurring easily.
(Description of Operation of Handlebar Locking Device 20)
An operation of the handlebar locking device 20 will be described next with reference to
As illustrated in (a) of
As illustrated in (b) of
In a case of transition from the unlock state to a lock state, the drive unit 40 drives the motor 51 to rotate forwards. This causes the screw shaft 46, which is connected to the drive shaft of the motor 51 through the coupling 49, to positively rotate. As illustrated in (a) of
In a case where the slider 42 thus moves, the slider-specific detection piece 45 also moves, so that the rear slider position sensor S2 and the front slider position sensor S1, in this order, are transitioned from being shaded to being exposed.
In a case where the slider 42 moves as described above, the holder 36, which is held by the adapter 32 and the first spring 33 in the front cover 70, is pushed out in the push-out direction. This causes the first spring 33 to be compressed. Since the holder 36 is pushed out, the lock pin 31, which is fixed to the holder 36 with the second spring 35 and the retaining ring 37, is also pushed out in the push-out direction.
Note that in a case where the engagement hole 11c is facing the pin tip part 31a, the pin tip part 31a enters and is engaged with the engagement hole 11c (see (a) of
Along with such a movement of the lock pin 31, the lock pin-specific detection piece 31d also moves, so that the rear lock pin position sensor S4 and the front lock pin position sensor S3, in this order, are transitioned from being shaded to being exposed.
As illustrated in (b) of
Meanwhile, in a case where engagement hole 11c is not facing the pin tip part 31a, the pin tip part 31a presses against a side surface of the steering column 11a and does not enter the engagement hole 11c (see (a) of
As illustrated in (b) of
Note, however, that even in the incomplete lock state, it is possible to transition to a lock state by causing the handlebar 5 to turn rightwards or leftwards so as to cause the engagement hole 11c to face the pin tip part 31a. When the engagement hole 11c faces the pin tip part 31a, the second spring 35 which is compressed is restored. The restoring force causes the pin tip part 31a to enter the engagement hole 11c.
Meanwhile, for the purpose of transitioning from a lock state to an unlock state, the drive unit 40 drives the motor 51 to rotate backwards. This, as illustrated in (a) of
In a case where the slider 42 thus moves, the slider-specific detection piece 45 also moves, so that the front slider position sensor S1 and the rear slider position sensor S2, in this order, are transitioned from being exposed to being shaded.
In a case where no force is applied to the handlebar 5 to rotate so that there is no large friction between the engagement hole 11c and the pin tip part 31a, a movement of the slider 42 causes the first spring 33, which is compressed, to be restored. The restoring force pushes the holder 36 back to the home position, and consequently pushes the lock pin 31, which is fixed to the holder 36, back to the home position together. This, as illustrated in (a) of
Along with such a movement of the lock pin 31, the lock pin-specific detection piece 31d also moves, so that the front lock pin position sensor S3 and the rear lock pin position sensor S4, in this order, are transitioned from being exposed to being shaded.
Meanwhile, in a case where a force is applied to the handlebar 5 to rotate so that there is a large amount of friction between the engagement hole 11c and the pin tip part 31a, a movement of the slider 42 to the home position does not allow the lock pin 31 to move because the pin tip part 31a is caught on the engagement hole 11c (see (a) of
Since the lock pin 31 does not move, the following is true. That is, in the incomplete lock state, the front and rear lock pin position sensors S3 and S4 both remain exposed (see (b) of
Note that even in the incomplete unlock state, it is possible to transition to an unlock state by causing the handlebar 5 to turn rightwards or leftwards so as to stop the engagement hole 11c and the pin tip part 31a from catching on each other. When the engagement hole 11c and the pin tip part 31a are no longer caught on each other, the first spring 33 which is compressed is restored. The restoring force causes the pin tip part 31a to be removed from the engagement hole 11c.
(Description of Control Section 100 of Handlebar Locking Device 20)
A control section 100 of the handlebar locking device 20 will be described next with reference to
The control section 100 controls forward and backward driving of the motor 51 and ON/OFF of the forward and backward driving. The control section 100 also judges an operation state of the handlebar locking device 20 according to signals which (i) are supplied from the front and rear slider position sensors S1 and S2 and the front and rear lock pin position sensors S3 and S4 and (ii) indicate shading and exposure of the sensors. Other than a lock state, an unlock state, an incomplete lock state, and an incomplete unlock state described earlier, the examples of the operation state encompass (i) a transitioning-to-lock state in which a transition from an unlock state to a lock state is being made and (ii) a transitioning-to-unlock state in which a transition from a lock state to an unlock state is being made.
The communication section (notification processing section) 101 allows the handlebar locking device 20 to communicate with an outside device, and is mounted on the substrate 61. According to the present embodiment, the communication section 101 carries out wireless communication or wired communication with the user interface 8 mounted on the bicycle 1. The communication section 101 transmits, to the control section 100, a lock instruction or an unlock instruction supplied from the user interface 8. The communication section 101 also transmits, to the user interface 8, information indicative of an operation state of the handlebar locking device 20, which operation state has been judged by the control section 100. According to the information which has been received from the control section 100 and which indicates the operation state of the handlebar locking device 20, the user interface 8 notifies a user of the operation state of the handlebar locking device 20 through displaying the operation state. On the user interface 8, a control section 8a is mounted.
As illustrated in
In this state, in a case where a signal for locking the handlebar 5 is inputted, such as an input of a lock instruction, the control section 100 turns on the motor 51 so as to drive the motor 51 to rotate forwards. This causes the slider 42 to start moving in the push-out direction as described above, so that the rear slider position sensor S2 and the front slider position sensor S1, in this order, are transitioned from being shaded to being exposed. The control section 100 turns off the motor 51 with a timing with which the front slider position sensor S1 is transitioned from being shaded to being exposed.
In a case where the lock pin 31 is pushed out along with the movement of the slider 42 and consequently the handlebar 5 faces a proper direction to be locked, the lock pin 31 is pushed out smoothly so that the pin tip part 31a enters the engagement hole 11c. As a result, the rear lock pin position sensor S4 and the front lock pin position sensor S3, in this order, are transitioned from being shaded to being exposed. The control section 100 judges that a state is a lock state in a case where the front lock pin position sensor S3 is transitioned from being shaded to being exposed before the front slider position sensor S1 is transitioned from being shaded to being exposed. Then, the user interface 8 displays “lock” indicating that the handlebar 5 is properly locked.
During a period between (i) a time point at which the motor 51 is turned on to drive to rotate forwards and (ii) a time point at which the state is judged as a lock state, the control section 100 judges that the state is at a midway point of being transitioned to the lock state. Then, the user interface 8 displays “being transitioned to the lock state” indicating that the state is at a midway point of being transitioned to the lock state.
A comparison with
Then, in a case where the user turns the handlebar 5 so that the pin tip part 31a enters the engagement hole 11c, the control section 100 judges that the state is a lock state. Then, the display of the user interface 8 is switched from “incomplete lock” to “lock” indicating that the handlebar 5 is properly locked.
As illustrated in
In this state, in a case where a signal for unlocking the handlebar 5 is inputted, such as an input of an unlock instruction, the control section 100 turns on the motor 51 so as to drive the motor 51 to rotate backwards. This causes the slider 42 to start moving in the direction back to the home position as described above, so that the front slider position sensor S1 and the rear slider position sensor S2, in this order, are transitioned from being exposed to being shaded. The control section 100 turns off the motor 51 with a timing with which the rear slider position sensor S2 is transitioned from being exposed to being shaded.
Since there is no longer a force to push out the holder 36 due to the movement of the slider 42 to the home position, a force of the compressed first spring 33 to be restored causes the lock pin 31 to attempt to return to the home position. In this case, in a case where no force is applied to the handlebar 5 to rotate, the pin tip part 31a is smoothly removed from the engagement hole 11c, so that the front lock pin position sensor S3 and the rear lock pin position sensor S4, in this order, are transitioned from being exposed to being shaded. The control section 100 judges that a state is an unlock state in a case where the rear lock pin position sensor S4 is transitioned from being exposed to being shaded before the rear slider position sensor S2 is transitioned from being exposed to being shaded Then the user interface 8 displays “unlock” informing the user that the handlebar 5 is properly unlocked.
During a period between (i) a time point at which the motor 51 is turned on to drive to rotate backwards and (ii) a time point at which the state is judged as an unlock state, the control section 100 judges that the state is at a midway point of being transitioned to the unlock state. Then, the user interface 8 displays “being transitioned to the unlock state” indicating that the state is at a midway point of being transitioned to the unlock state.
A comparison with
Then, in a case where the user turns the handlebar 5 so that the pin tip part 31a is no longer caught so as to be removed from the engagement hole 11c, the control section 100 judges that the state is an unlock state. This causes the display of the user interface 8 to switch from “incomplete unlock” to “unlock” indicating that the handlebar 5 is properly unlocked.
The control section 100 judges that the state is “error state” as the operation states of the handlebar locking device 20 in a case where, although the control section 100 receives a lock instruction or an unlock instruction via the communication section 101 so as to supply a drive signal to the motor 51, (i) there are no changes in output signals from the front and rear slider position sensors S1 and S2 and/or (ii) an overcurrent of the motor 51 is detected. In a case where an error is detected, the user interface 8 displays a message such as (i) “error” indicating that the error has occurred or (ii) “please carry out maintenance of the handlebar locking device”.
In addition, in a case where an error content can be specified, such as the handlebar locking device 20 malfunctioning or the battery running out, the control section 100 transmits the specified error content to the user interface 8. In response, the user interface 8 displays, in addition to “error”, a message such as “malfunction of handlebar locking device” or “battery is out” which notifies a user of the error content.
(Examples of Display of User Interface 8)
(a) through (d) of
(Variations)
Note that in the present embodiment, the user interface 8 provided on the bicycle 1 is used for (i) transmission of a lock instruction and an unlock instruction and (ii) notification for a user of an operation state of the handlebar locking device 20. However, the present invention is not limited to this configuration. For example, it is alternatively possible that a dedicated application is downloaded to a mobile device, such as a smartphone, of a user of the bicycle 1, so that the mobile device is used for the transmission and the notification. Alternatively, the notification of the operation state of the handlebar locking device 20 can be made not only through displaying but also (i) a sound, a voice, or the like or (ii) a combination of displaying and a sound, a voice, or the like. In a case where the notification is made by a sound, the handlebar locking device 20 can include a sound generating device so that the handlebar locking device 20 itself notifies a user of an operation state of the handlebar locking device 20.
In a case where the handlebar 5 is configured to be lockable, danger is posed by an operation error or the like to cause the handlebar locking device 20 to work while a bicycle is running. Therefore, for the purpose of preventing such a malfunction, a system is set up to determine a running state of a bicycle by, for example, a GPS function, the presence/absence of rotation of the pedals 7, and the status of a kickstand, so that if the bicycle is running, then a lock instruction is ignored. Even in such a case, it is still preferable that a user riding the bicycle can be notified, through a sound, a display, vibration of a mobile device, or the like, that an operation error has occurred.
In the present embodiment, inputting of a lock instruction is used as an example of a signal for locking the handlebar 5, and inputting of an unlock instruction is used as an example of a signal for unlocking the handlebar 5. However, the present invention is not limited to this configuration. For example, it is possible that in a case where several seconds pass while a user of the bicycle 1 is away from the bicycle 1 by several meters or more, the user is prompted to input a signal for locking the handlebar 5. It is alternatively possible that in a case where several seconds passed after a kickstand of the bicycle 1 is put down, the user is prompted to input a signal for locking the handlebar 5. In addition, a user of the bicycle 1 can be prompted to input a signal for unlocking the handlebar 5 in a case where (i) the user entered an area of several meters away from the bicycle 1 and (ii) the kickstand of the bicycle 1 is put up.
Although a two-wheeled bicycle is herein used as an example, the moving body can alternatively be, for example, three-wheeled or four-wheeled. Alternatively, the moving body can be a bicycle which is an electric-assisted bicycle that obtains part of a traveling force from an electric motor that uses a battery as a power source. In such a case, it is possible that an electric power for the handlebar locking device 20 is secured from, instead of the battery 64, a power supply that drives the electric motor. The moving body is not limited to a bicycle.
[Software Implementation Example]
The control section 100 and the control section 8a can each be realized by a logic circuit (hardware) provided in an integrated circuit (IC chip) or the like or can be alternatively realized by software as executed by a central processing unit (CPU).
In the latter case, the control section 100 and the control section 8a each include: a CPU which executes instructions of a program that is software realizing the foregoing functions; a read only memory (ROM) or a storage device (each referred to as a “storage medium”) in which the program and various kinds of data are stored so as to be readable by a computer (or a CPU); and a random access memory (RAM) in which the program is loaded. An object of the present invention can be achieved by a computer (or a CPU) reading and executing the program stored in the storage medium. Examples of the storage medium encompass “a non-transitory tangible medium” such as a tape, a disk, a card, a semiconductor memory, and a programmable logic circuit. The program can be supplied to the computer via any transmission medium (such as a communications network or a broadcast wave) which allows the program to be transmitted. Note that the present invention can also be achieved in the form of a computer data signal in which the program is embodied via electronic transmission and which is embedded in a carrier wave.
The present invention is not limited to the embodiments, but can be altered by a skilled person in the art within the scope of the claims. The present invention also encompasses, in its technical scope, any embodiment derived by combining technical means disclosed in differing embodiments.
A handlebar locking mechanism in accordance with an aspect of the present invention is a handlebar locking mechanism to be mounted in a moving body whose traveling direction is changed by a handlebar, including: an engaging section which is a hole or a recess made in a shaft that rotates along with the handlebar; a lock pin which locks the handlebar in a case where a tip part of the lock pin is engaged with the engaging section; and a lock pin drive mechanism which (i) moves, in a case where the handlebar is to be locked, the lock pin so that the tip part is engaged with the engaging section and (ii) moves, in a case where the handlebar is to be unlocked, the lock pin so that the tip part is removed from the engaging section, the engaging section, the lock pin, and the lock pin drive mechanism being contained and provided in an exterior component of the moving body so as to be not viewable from outside of the moving body.
According to the configuration, in a case where the handlebar is to be locked, the lock pin drive mechanism moves the lock pin so that the tip part of the lock pin is engaged with the engaging section which is a hole or a recess made in the shaft that rotates along with the handlebar. This restricts the rotation of the handlebar, so that the handlebar is locked. In a case where the handlebar is to be unlocked, the lock pin drive mechanism moves the lock pin so that the tip part is removed from the engaging section. This releases the restriction of the handlebar, and therefore allows the handlebar to be rotated.
In addition, according to the configuration, the engaging section, the lock pin, and the lock pin drive mechanism are contained and provided in the exterior component of the moving body so as to be not viewable from outside of the moving body. This makes it difficult to unlock a handlebar by a forcible method such as breaking the handlebar locking mechanism. In addition, in a case where, while the handlebar is locked, the handlebar is turned to such an extent that it is difficult for moving body to travel straight, the handlebar locking device can be used as a lock for preventing theft.
The handlebar locking mechanism in accordance with an aspect of the present invention can be further configured so that the lock pin drive mechanism electrically controls the lock pin to move.
A complex design is necessary in order to employ only a mechanical structure in which the lock pin and the lock pin drive mechanism in addition to the engaging section are contained and provided in the exterior component of the moving body so as to be not viewable from outside of the moving body. However, with the configuration in which the lock pin is electrically controlled to move, it is possible to easily achieve a handlebar locking mechanism which is not viewable from outside of the moving body in accordance with an aspect of the present invention.
The handlebar locking mechanism in accordance with an aspect of the present invention can be configured so that the lock pin drive mechanism further includes a front side support member through which the lock pin passes and which (i) supports an outer circumference of the tip part of the lock pin so that the lock pin can move axially, (ii) has a front end part from which the tip part of the lock pin protrudes, and (iii) has a recess that is located at a rear end part of the front side support member and that is provided axially, a rear side support member through which the lock pin passes and which (i) supports an outer circumference of a part of the lock pin, which part is located behind the pin tip part, so that the lock pin can move axially and (ii) has a front end part that is inserted into the recess of the front side support member so as to slide in the recess, a push-out section which is configured so that (i) in a case where the handlebar is to be locked, the push-out section comes into contact with the rear side support member so as to push out the rear side support member in a forward direction in which the pin tip part of the lock pin protrudes and (ii) in a case where the handlebar is to be unlocked, the push-out section returns to a home position at which the push-out section was located before pushing out the rear side support member, a first spring which is provided between the front side support member and the rear side support member and which becomes compressed in a case where the rear side support member is pushed out in the forward direction by the push-out section, a latching part which causes the lock pin to move along with the rear side support member by latching the lock pin onto the rear side support member until the rear side support member moves to a position so that the first spring is completely compressed, and a second spring which is provided between the lock pin and the rear side support member and which becomes compressed in a case where the lock pin moves towards a rear end part of the rear side support member while the latching by the latching part is released.
According to the configuration, the lock pin passes through the front side support member and the rear side support member so that the lock pin is supported so as to be able to move axially. The tip part of the lock pin protrudes from the front end part of the front side support member which supports the tip part. The rear side support member, which supports the lock pin behind the front side support member, is configured so that the front end part of the rear side support member is inserted into the recess of the front side support member so as to slide in the recess. In a case where the handlebar is to be locked, the rear side support member is pushed out by the push-out section in the forward direction in which the tip part of the lock pin protrudes.
The first spring is provided between the front side support member and the rear side support member, and is compressed by rear side support member being pushed out in the forward direction. In a case where the handlebar is to be unlocked, the push-out section returns to the home position at which the push-out section was located before pushing out the rear side support member. This causes the rear side support member to also return to an original position due to a restoring force of the first spring.
While the rear side support member is moving to the position so that the first spring is completely compressed, the lock pin is latched onto the rear side support member by the latching part. This allows the lock pin to move along with the rear side support member, so that the tip part protrudes from the front side support member. In a case where the rear side support member returns to the original position, the lock pin also returns to an original position along with the rear side support member.
The second spring is provided between the lock pin and the rear side support member. In a case where the latching by the latching part is released so that the tip part of the lock pin cannot protrude sufficiently from the front side support member, the second spring is compressed so as to allow the lock pin to move towards the rear end part of the rear side support member. In this way, even in a case where the tip part of the lock pin is not aligned with the engaging section when the push-out section pushes out the rear side support member, it is still possible that, when the tip part of the lock pin is aligned with the engaging section later, the tip part protrudes out due to a restoring force of the second spring so as to be engaged with the engaging section.
According to the configuration, instead of directly moving the lock pin by operations to push out the rear side support member and to return to the home position, the push-out section moves lock pin through the first spring and the second spring. Therefore, even in a case where the handlebar is incompletely locked or incompletely unlocked because of an orientation of the handlebar or because of a force applied to the handlebar, the operation of the push-out section is completed. Hence, even in a case where the operation of the push-out section is carried out by a motor, it is possible to prevent a motor from being subjected to an unnecessary load.
The handlebar locking device in accordance with an aspect of the present invention is a handlebar locking device on a moving body, including a lock pin and a lock pin drive mechanism which are included in the handlebar locking mechanism in accordance with an aspect of the present invention, the handlebar locking device further including: a lock status identifying section which identifies, according to a position of the lock pin, a lock status indicative of locking of the handlebar by the lock pin; and a notification processing section which outputs the lock status of the handlebar thus identified by the lock status identifying section.
According to the configuration, the lock status identifying section identifies the lock status indicative of locking of the handlebar by the lock pin. Then, the notification processing section outputs the lock status thus identified. As described above, according to the handlebar locking mechanism in accordance with an aspect of the present invention, it is impossible to visually recognize, from outside of the moving body, whether or not the handlebar is locked. Thus, checking a lock status requires an operation such as actually moving the handlebar. Therefore, the lock status is thus outputted. This makes it possible to check the lock status in a smart manner without carrying out an operation such as actually moving the handlebar.
Alternatively, the notification processing section can be configured so as to transmit out information so as to communicate a lock status via an external device. Alternatively, the notification processing section can include a sound generator or the like in the handlebar locking device so as to generate a sound in the handlebar locking device in order to output information.
The handlebar locking device in accordance with an aspect of the present invention can be a handlebar locking device on a moving body, including the lock pin and the lock pin drive mechanism which are included in the handlebar locking mechanism in accordance with an aspect of the present invention, the handlebar locking device further including: a lock status identifying section which identifies, according to a position of the lock pin, a lock status indicative of locking of the handlebar by the lock pin; and a notification processing section which outputs the lock status of the handlebar thus identified by the lock status identifying section, the lock status identifying section including a push-out section position identifying section which identifies a position of the push-out section and a lock pin position identifying section which identifies the position of the lock pin, the lock status identifying section being configured to detect an incomplete lock state and an incomplete unlock state according to results of the identifying by the push-out section position identifying section and of the identifying by the lock pin position identifying section, the incomplete lock state being detected in a case where (i) the push-out section is located at a position at which the push-out section is completely pushing out the rear side support member and (ii) the lock pin is not reaching a position at which the tip part is to be engaged with the engaging section, and the incomplete unlock state being detected in a case where (i) the push-out section is located at a home position at which the push-out section is located before pushing out the rear side support member and (ii) the lock pin is located at the position at which the tip part is engaged with the engaging section.
With the configuration, in a case where the lock pin drive mechanism includes the front side support member and the rear side support member as described earlier, it is possible to easily detect that (i) the handlebar is incompletely locked and (ii) the handlebar is incompletely unlocked.
The scope of the present invention also encompasses a moving body which includes the handlebar locking mechanism in accordance with an aspect of the present invention or the handlebar locking device in accordance with an aspect of the present invention.
| Number | Date | Country | Kind |
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| 2016-034702 | Feb 2016 | JP | national |
| Filing Document | Filing Date | Country | Kind |
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| PCT/JP2017/000479 | 1/10/2017 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2017/145534 | 8/31/2017 | WO | A |
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