JP2019031881A - Lock device for bicycle - Google Patents

Abstract

To provide a lock device for a bicycle that can perform locking and unlocking operations smoothly if the locking and unlocking operations are repeated for a long period of time, and avoids the situation where a latch does not return into a lock case in the time of unlocking.SOLUTION: The lock device for a bicycle is provided for a bicycle wheel. The inside of the lock device is provided with an arc-shaped latch 11 and an arc-shaped storage space 12 that can store the latch 11, and the lock device has an open part 13. The lock device includes a lock case in which openings 12a in the storage space 12 are disposed so as to face each other through the open part 13, and a tension spring 19, one end of which is attached to a rear end 11a of the latch 11, and that biases the latch 11 in a direction where the latch 11 is stored in the storage space 12. A low friction member 30 that has a coefficient of friction lower than iron is provided at a contact part between the lock case and the latch 11.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a bicycle locking device provided on a bicycle wheel.

  As a bicycle locking device for preventing bicycle theft, a so-called circle lock is already widely known. The bicycle locking device includes an arc-shaped bag, a lock case in which an arc-shaped (C-shaped) storage space capable of storing the bag, and an urging force in a direction in which the bag is stored in the storage space. It consists of a tension spring and a locking mechanism.

  Generally, the bag is made of metal such as iron, and the lock case is made of metal such as iron or aluminum including the outer wall portion of the storage space for storing the bag. In the unlocked (unlocked) state, the entire bag is stored in the storage space of the lock case, and the opening provided at the lower part of the locking device is opened. You can pass and the bicycle can run. On the other hand, in the locked state, the bag is held in the lock case in a state where it passes through the opening, the wheel rim cannot pass through, and the bicycle cannot run. In this way, the bag is moved while sliding in the storage space of the lock case between the locked state and the unlocked state.

  When the locking operation and the unlocking operation are repeated using such a bicycle locking device, the metal contact portions of the bag and the lock case are worn away so that the frictional resistance when the metals slide is increased. Even if unlocked, the wrinkle is difficult to return, and finally, even when unlocked, the wrinkle may not return completely.

  In such a state, if a passenger or the like tries to ride on a bicycle without noticing that the kite has not completely returned, the tip is not fitted into the lock case, so the cantilever state There is a risk that the spoke will hit the heel and the heel may be deformed or the rear wheel may lock and lose balance.

  In this way, as a device for preventing the wrinkles from returning completely even when unlocked, Patent Document 1, for example, reduces the frictional resistance by reducing the contact area of the lock case in the lock case. A technique is disclosed. In this bicycle locking device, two columnar projecting portions are projected toward the storage space for storing the bag in the lock case. More specifically, the protruding portions are provided at two locations so that the side closer to the tip of the heel in the lock case and the unlocked state in the lock case.

JP 2012-225059 A

  However, even when the bicycle locking device disclosed in Patent Document 1 is used, if it is used for a long period of time, the frictional resistance increases, and the case where the bag does not return completely even when unlocked increases. .

  The present invention solves the above problems, and even if the locking operation and the unlocking operation are repeated over a long period of time, the locking operation and the unlocking operation can be performed smoothly, and the bag returns to the lock case when unlocked. An object of the present invention is to provide a bicycle locking device that does not disappear.

  In order to solve the above-mentioned problems, the present invention provides a bicycle locking device provided for a bicycle wheel, wherein an arcuate bag and an arcuate storage space capable of storing the bag are provided therein. A lock case that has an open portion and is arranged so that the openings of the storage space face each other through the open portion, and one end portion is attached to the rear end of the bag to store the bag in the storage space And a low friction member having a friction coefficient lower than that of iron is provided at a contact portion between the lock case and the hook. The material of the low friction member is preferably a resin such as polyacetal resin or fluorine resin, but is not limited thereto.

  According to this configuration, since the low friction member whose friction coefficient is lower than that of iron is provided at the contact portion between the lock case and the bag, the lock is smoothly locked even if the locking operation and the unlocking operation are repeated over a long period of time. The operation and unlocking operation can be performed, and the bag does not return to the lock case when unlocking.

  In this case, in the case where the low friction member is provided at the contact portion of the lock case with the bag, the opening portion is arranged so as to separate the lower portions of the lock case, and the low friction member is accommodated in the lock case. When provided on the upper part of the inner peripheral part facing the space, or when the low friction member is provided so as to include a region where the inner peripheral part near the rear end part to which the tension spring of the hook is attached is slidably contacted. Good.

  Here, since the hook is pulled by the tension spring from the rear end portion where it is attached when unlocking, the hook is close to the rear end when the locking operation and the unlocking operation are repeated over a long period of time. The peripheral portion slides while abutting relatively strongly against the lock case as compared with other portions such as the tip portion side portion. Correspondingly, the low friction member is provided on the upper part of the inner peripheral part facing the storage space of the lock case, or the inner peripheral part of the lock case near the rear end part to which the tension spring of the hook is attached. Even if the locking operation and the unlocking operation are repeated over a long period of time, the locking operation and the unlocking operation are smoothly performed while the region where the low friction member is provided is relatively small by providing the sliding contact region. This prevents the bag from being returned to the lock case when unlocked.

  In addition, the low friction member may be provided in a contact portion of the heel with the lock case. In this case, the low friction member is provided on the inner periphery of the heel near the rear end portion to which the tension spring is attached. It is preferable to include a portion.

  According to this configuration, the low friction member is provided so as to include an inner peripheral portion close to the rear end portion that is easily pulled into contact with the lock case in the bag by being pulled by the tension spring at the time of unlocking. Even if the locking and unlocking operations are repeated over a long period of time while keeping the area to be kept smaller, the locking and unlocking operations can be performed smoothly, and the bag does not return to the lock case when unlocked. There is no.

  The bicycle locking device of the present invention may be applied to a bicycle locking device configured to be unlocked wirelessly or by wire by remote control.

  According to the present invention, by providing a low friction member whose friction coefficient is lower than that of iron at the contact portion between the lock case and the bag, even if the locking operation and the unlocking operation are repeated over a long period of time, the locking operation can be performed smoothly. The unlocking operation can be performed, and the bag does not return to the lock case when unlocked. Therefore, as in the prior art, it is possible to prevent the spokes from hitting a cantilevered heel and deforming the heel, etc., or locking the rear wheel to break the balance, improving reliability and safety. be able to.

  Further, the low friction member is provided on the upper part of the inner peripheral part facing the storage space of the lock case in the lock case, or the inner peripheral part near the rear end part to which the tension spring of the hook is attached in the lock case. By providing it so as to include the sliding contact area, it is possible to suppress an increase in manufacturing cost compared to the case where a low friction member is provided in the entire range where the entire cage slides, but it is reliable and safe for an extremely long period of time. Can be improved satisfactorily.

  Further, by providing the low friction member so as to include an inner peripheral portion of the heel near the rear end portion to which the tension spring is attached, the low friction member is provided only in a smaller area, thereby increasing the manufacturing cost. The reliability and safety can be improved satisfactorily over a long period of time while further suppressing the above.

The side view of the bicycle which attached the locking device for bicycles concerning an embodiment of the invention 1 is a front view of a bicycle locking device according to a first embodiment of the present invention. Right side view of the bicycle locking device 2 is a cross-sectional view taken along line AA in FIG. Rear view of the bicycle locking device Exploded perspective view of the bicycle locking device The perspective view which shows the unlocking state of the locking device for bicycles The perspective view which shows the locking state of the bicycle locking device The rear view showing the unlocked state of the bicycle locking device with the back plate removed The rear view showing the locked state of the bicycle locking device with the back plate removed Front view of the low friction member of the bicycle locking device Rear view of the low friction member of the bicycle locking device Left side view of the low friction member of the bicycle lock device The rear view which removed the back plate in the rear view which shows the unlocking state in the bicycle locking device which concerns on the 2nd Embodiment of this invention The rear view showing the locked state of the bicycle locking device with the back plate removed The rear view which shows the unlocking state in the modification of the bicycle locking device which concerns on the embodiment, and has removed the back plate The rear view showing the locked state of the modified example, with the back plate removed The rear view which shows the unlocking state in the other modification of the bicycle locking device which concerns on the embodiment, and has removed the back plate The rear view showing the locked state of the modified example of the bicycle locking device of the other modified example, with the back plate removed The back view which shows the unlocking state in the other modification of the bicycle locking device which concerns on the embodiment, and the state which removed the back plate The rear view showing the locked state of the modified example of the bicycle locking device of the other modified example, with the back plate removed The figure which shows simply the case where the bicycle locking device which concerns on embodiment of this invention is the structure unlock | released with the motor for unlocking.

(First embodiment)
Hereinafter, a bicycle locking device according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a bicycle locking device (hereinafter also referred to as a locking device for short) 10 according to an embodiment of the present invention is provided on a bicycle 1 for locking and unlocking (also referred to as unlocking). Is what you do. The bicycle 1 includes a front wheel 2 and a rear wheel 3 (both are examples of wheels) having spokes 4, and a frame 5 that connects the front wheel 2 and the rear wheel 3. A locking device 10 is attached to a pair of left and right back forks (also called seat stays) 6 connected to the axle of the rear wheel 3. The locking device 10 is locked by passing a rod 11 described later between the spokes 4 of the rear wheel 3 to prevent the rotation of the rear wheel 3, and retracting the rod 11 from between the spokes 4 to unlock. . In addition, you may comprise so that this locking device 10 may be attached to places other than the back fork 6 in the flame | frame 5, and you may attach so that rotation of the front wheel 3 can be blocked | prevented.

  As shown in FIGS. 2 to 10, the lock device 10 according to the embodiment of the present invention includes an arc-shaped (substantially C-shaped) ridge 11 and an arc-shaped storage space 12 in which the ridge 11 can be stored. And a lock case 15 having an open portion 13 and arranged so that the openings 12a of the storage space 12 face each other through the open portion 13, and one end portion at the rear end portion of the bag 11. A tension spring 19 or the like that is attached and urges in a direction to store the bag in the storage space 12 is provided.

  The flange 11 has a substantially C-shaped arc shape, and is entirely made of metal such as iron. And the hole 11b is formed in the rear-end part 11a of the collar 11, The one end part of the tension spring 19 which consists of what is called a spring is hooked in this hole 11b. The locking device 10 is provided with a locking mechanism 20 that is unlocked by inserting a key 21. A recess 11 c into which the distal end of the retracting / retracting portion 22 that is retracted / retracted by the lock mechanism 20 is inserted is formed in a part of the outer peripheral portion of the collar 11. Further, as shown in FIG. 6, a rod-shaped knob mounting member 11 d for mounting an operation knob 14 for manually moving the rod 11 is also attached to the rod 11.

  As shown in FIG. 6 and the like, the lock mechanism 20 includes a lock mechanism main body (key cylinder) 23 into which the lock 21 is inserted, a cam 25 driven by the lock mechanism main body 23, and a retracting portion (so-called latch) 22. The retracting / retracting portion 22 is configured by a retracting / retracting portion spring 24 that urges the retracting portion 22 in a direction in which the front end protrudes into the storage space 12. In addition, 26 in FIG. 6 is an attachment base metal fitting for attaching the locking device 10 to the back fork 6.

  The lock case 15 includes a main body case 16 made of metal such as aluminum (or iron), and a back plate 17 made of a metal plate attached to the back surface of the main body case 16. An open portion 13 is formed that is open so that the spokes 4 of the rear wheel 3 can pass (that is, disposed so as to separate the lower portions of the lock case 15 from each other). That is, the lock case 15 covers the outer periphery of the rear wheel 3 so that the barb 11 can be withdrawn and retracted through the opening 13 through which the spoke 4 can pass. The main body case 16 has a concave cross section, and the concave portion serves as a storage space 12 in which the bag 11 can be moved and stored. The storage space 12 also stores a tension spring 19, and the other end of the tension spring 19 is hooked (locked) on a locking projection 16 a formed so as to protrude into the storage space 12. . A plurality of protrusions 16b that fit into a plurality of holes 17a formed on the back plate 17 are also formed on the back surface of the main body case 16, and the holes 17a and the protrusions 16b are fixed in a state of being fitted to each other. The Reference numeral 16d denotes a long groove for passing the knob mounting member 11d of the flange 11. Of course, the assembly structure of the main body case 16 and the back plate 17 is not limited to this, and various fitting structures, locking structures, and the like may be used.

  In the unlocked state, as shown in FIGS. 7 and 9, the entire bag 11 is stored in the storage space 12 of the lock case 15 and the opening 13 is opened, and the spoke 4 of the bicycle 1 is connected to the opening 13. The vehicle can pass (that is, the bicycle can run). On the other hand, at the time of locking, as shown in FIGS. 8 and 10, the operation knob 14 is moved downward against the urging force of the tension spring 19 so that the barb 11 passes through the opening 13, and then the lock 21 is moved. By pulling out from the locking device 12 (specifically, the locking device 12) and locking, the retracting portion 22 of the locking mechanism 20 is held in the locked state in which it is inserted into the concave portion 11c of the flange 11, and the flange 11 is moved to the rear wheel 3. , And the rear wheel 3 is prevented from rotating.

  In addition to the above configuration, as shown in FIGS. 6, 9, and 10, the contact portion between the lock case 15 and the collar 11 has a low friction coefficient lower than that of iron (and a general metal such as aluminum). A friction member 30 is provided, and in this embodiment, the low friction member 30 is provided at the contact portion of the lock case 15 with the collar 11. The material of the low friction member 30 is preferably a resin such as polyacetal or fluororesin, but is not limited thereto, and any material having a lower friction coefficient than a metal such as iron or aluminum may be used. What is necessary is just to comprise by the amount of friction materials. Further, the low friction member 30 preferably has a wear rate with a small wear rate (for example, a wear rate is smaller than that of brass or copper and wear resistance is greater).

  Here, the low friction member 30 is generally provided at an upper portion of the inner peripheral portion facing the storage space 12 of the lock case 15. That is, at the time of unlocking, the hook 11 is pulled by the tension spring 16 from the rear end portion 11a where it is attached. Therefore, when the locking operation and the unlocking operation are repeated over a long period of time, the hook 11 The inner peripheral part 11f close to the part 11a slides while relatively abutting against the lock case 15 as compared with other parts such as the tip side part. Correspondingly, the low friction member 30 is attached to the upper part of the inner peripheral part facing the storage space 12 of the lock case 15, that is, to the rear end part 11 a to which the tension spring 19 of the collar 11 is attached. It is provided so as to include a region where the near inner peripheral portion 11f is in sliding contact. In addition, you may provide only in the area | region which touches.

  As shown in FIGS. 11 to 13, a protruding portion 30 a and a protruding portion 30 b for assembling to the main body case 16 of the lock case 15 are formed at both ends of the low friction member 30, respectively. The portion 30a and the protrusion 30b are fitted into a recess (assembly portion) 16c (see FIGS. 6, 9, and 10) and a hole (not shown) formed in the main body case 16. Further, the arc-shaped portion 30c of the low friction member 30 has a flat plate shape that is flat in the depth direction so that the inner peripheral portion of the flange 11 is in good sliding contact. Note that the low friction member 30 is not necessarily limited to such a shape, and may be any shape that can be satisfactorily assembled to the main body case 16, and the cross-sectional shape of the low friction member 30 is also an arc shape that swells to the outer peripheral side (however, A radius of curvature larger than the cross section of the flange 11 is preferable.

  With the above configuration, since the low friction member 30 having a friction coefficient lower than that of iron is provided in the portion of the lock case 15 that comes into contact with the flange 11, even if the locking operation and the unlocking operation are repeated for a long time, In addition, the locking operation and the unlocking operation can be performed, and the bag 11 does not return to the lock case 15 at the time of unlocking. Therefore, as in the prior art, it is possible to prevent the spokes from hitting a cantilevered heel and deforming the heel, etc., or locking the rear wheel to break the balance, improving reliability and safety. be able to.

  Moreover, according to the said structure, the area | region where the inner peripheral part 11f close | similar to the rear-end part 11a which is a location where the collar | bag 11 slides while relatively contact | abutting to the lock case 15 at the time of unlocking in the lock case 15 is contacted. Since it is provided so as to include, the manufacturing cost can be suppressed by suppressing the volume of the low friction member 30 as a region smaller than the entire region where the entire collar 11 slides.

(Second Embodiment)
In the first embodiment, the case where the low friction member 30 is provided at the contact portion of the lock case 15 with the ridge 11 has been described. Instead, the low friction member 30 is shown in FIGS. As shown in FIG. 15, the bag 11 may be provided at a contact portion with the lock case 15. In this case, the low friction member 30 may be provided in the inner peripheral portion 11f of the flange 11 near the rear end portion 11a to which the tension spring 19 is attached, or to include the inner peripheral portion 11f. .

  Even with this configuration, since the low friction member 30 having a friction coefficient lower than that of iron is provided in the portion of the bag 11 that contacts the lock case 15, even if the locking operation and the unlocking operation are repeated over a long period of time, The locking operation and the unlocking operation can be performed smoothly, and the bag 11 does not return into the lock case 15 when unlocked. Therefore, as in the prior art, it is possible to prevent the spokes from hitting a cantilevered heel and deforming the heel, etc., or locking the rear wheel to break the balance, improving reliability and safety. be able to.

  In addition, according to this configuration, the region where the low friction member 30 is provided can be suppressed to be smaller than that in the first embodiment, and the manufacturing cost can be further reduced. However, in this configuration, since it always slides at the same location where the low friction member 30 is provided, it is necessary to devise such as providing a member having particularly excellent wear resistance as the low friction member 30. Moreover, although the manufacturing cost increases, the low friction member 30 is provided from the position near the rear end of the flange 11 to the intermediate portion in the circumferential direction (see FIGS. 16 and 17), or provided throughout the inner peripheral portion of the flange 11. (Refer to FIGS. 18 and 19), or may be provided in two regions, a portion near the rear end and a portion near the front end (see FIGS. 20 and 21). The low-friction member 30 may be assembled by being fitted to the hook 11 or hooked to be locked, or may be bonded with an adhesive or coated on the hook 11. It is sufficient that it is fixed to the flange 11.

  Moreover, although the case where the person manually unlocks the bicycle has been described in the above embodiment, the present invention is not limited to this. For example, the above configuration may be applied to a bicycle locking device provided on a bicycle such as an electric bicycle that can be unlocked by an electric motor.

  For example, as shown in FIG. 22, a bicycle such as an electric bicycle equipped with a battery 40 includes a remote control transmitter 41 that transmits an unlock instruction signal S, and a remote control (remote operation: remote control) to the bicycle lock device 10. ) A remote control (remote control) receiver (unlock signal receiver) 46 that receives an unlock instruction signal from the transmitter 41, an unlock controller 47 that receives this received signal, and an unlock controller 47 An unlocking motor 48 driven by a drive signal is provided. Then, the unlocking motor 48 is driven by pressing the transmission button 41a or the like of the remote control transmitter 41 and the like, for example, the retracting part as shown in FIGS. 9 and 10 is moved backward to unlock. .

  By using the lock device 10 having the above-described configuration in such a bicycle system, even when the lock 11 is pulled by the tension spring 19 while the unlocking motor 48 is used, the lock case 15 and the lock 11 Since the low friction member 30 having a friction coefficient lower than that of iron is provided in the contact portion, the locking operation and the unlocking operation can be smoothly performed even if the locking operation and the unlocking operation are repeated for a long period of time. Thus, the bag 11 does not return to the lock case 15 when unlocked. Therefore, as in the prior art, it is possible to prevent the spokes from hitting a cantilevered heel and deforming the heel, etc., or locking the rear wheel to break the balance, improving reliability and safety. be able to.

  In the above description, the case where the unlocking signal is transmitted wirelessly to drive the unlocking motor 48 has been described. However, the present invention is not limited to this. It is also applicable to.

  The present invention can be applied to various bicycle locking devices for locking and unlocking by moving a bag such as a circle lock out of the lock case.

1 Bicycle 2 Front Wheel 3 Rear Wheel 4 Spoke 5 Frame 6 Back Hawk (Seat Stay)
10 Bicycle lock device (lock device)
DESCRIPTION OF SYMBOLS 11 １２ 12 Storage space 13 Opening part 14 Operation knob 15 Lock case 16 Main body case 17 Back plate 19 Tension spring 20 Locking mechanism 21 Lock 22 Retracting part 30 Low friction member 40 Battery 41 Remote control (remote control) transmitter 46 Remote control (remote) Control) Receiver 47 Unlocking controller 48 Unlocking motor

Claims (8)

A bicycle locking device provided for a bicycle wheel,
Arc-shaped ridges,
A lock case in which an arc-shaped storage space capable of storing a bag is provided inside and has an opening, and the openings of the storage space are arranged to face each other through the opening,
A tension spring having one end attached to the rear end of the heel and biasing the heel in a storage direction;
With
A bicycle locking device, wherein a contact portion between the lock case and the bag is provided with a low friction member having a lower coefficient of friction than iron.   The bicycle locking device according to claim 1, wherein the low friction member is provided at a contact portion of the lock case with the bag. The open part is arranged to separate the lower parts of the lock case,
The bicycle locking device according to claim 2, wherein the low friction member is provided on an upper portion of an inner peripheral portion facing a storage space of the lock case.   The low-friction member is provided so as to include an area where an inner peripheral portion of the lock case close to the rear end portion to which the tension spring of the hook is attached is in sliding contact. The bicycle locking device as described.   The bicycle locking device according to claim 1, wherein the low friction member is provided in a contact portion of the bag with the lock case.   6. The bicycle lock device according to claim 5, wherein the low friction member is provided so as to include an inner peripheral portion of the bag near a rear end portion to which a tension spring is attached.   The bicycle locking device according to any one of claims 1 to 6, wherein the bicycle locking device is configured to be unlocked wirelessly or by wire by remote operation.   The bicycle locking device according to any one of claims 1 to 7, wherein a material of the low friction member is a resin such as polyacetal or fluororesin.

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