Antitheft lock device
A compact anti-theft locking device for motorcycle helmets, using a fixed hook and latch rod with a combination dial, addresses bulkiness and security issues, offering secure and convenient helmet storage on handlebars.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- DAYTONA
- Filing Date
- 2025-10-10
- Publication Date
- 2026-06-25
Smart Images
Figure JP2025036068_25062026_PF_FP_ABST
Abstract
Description
Anti-theft lock device
[0001] The present invention relates to an anti-theft lock device that is suitable for use as a helmet holder that can be retrofitted around the handlebars of, for example, a motorcycle.
[0002] When riding a motorcycle, both the rider and the passenger are legally required to wear a helmet. Along with this, motorcycles are standard-equipped with an anti-theft lock device commonly known as a helmet holder that can be locked. Many of these helmet holders are provided on the side of the vehicle body, or in the case of a scooter-type motorcycle, around the leg shield above the step. To use such a helmet holder, the ring around the chin strap of the helmet is hung on the hook of the helmet holder and locked. As a result, in many cases, the helmet is held in a state where it is suspended with its inside facing upward or toward the side of the vehicle body.
[0003] On the other hand, among riders, due to their recognition of the importance of the helmet and affection for it, when they want to keep the helmet on the motorcycle when not in use, there are not a few who, for example, want to place the helmet upright on the upper surface of the fuel tank. In response to such requests, it is possible to meet them by adding a helmet holder to the handlebar near the fuel tank, and for this reason, helmet holders that can be retrofitted to the handlebar are already available on the market.
[0004] On the other hand, currently, in many motorcycles, various services such as navigation can be used, so aftermarket mounts such as smartphones are concentrated around the handlebars, and the available mounting locations for helmet holders are also limited. Therefore, compactness is also required for aftermarket helmet holders. In addition, more importantly, from the perspective of the first required function of anti-theft, while the convenience of existing products as aftermarket equipment is evaluated, there are also situations where the anti-theft and security performance is not sufficient, but this is overlooked or tolerated.
[0005] Japanese Patent Application Laid-Open No. 2015-24703, Japanese Patent Application Laid-Open No. 2016-113047
[0006] This invention was made with this background in mind, and the technical challenge was to develop an anti-theft locking device that is suitable as a helmet holder in a compact form while possessing robust and sufficient anti-theft functions.
[0007] In other words, the anti-theft locking device described in claim 1 is an anti-theft locking device that forms a lock space by combining a fixed hook and a latch rod in a closed annular shape, and allows the lock space to be released by sliding the latch rod, the anti-theft locking device comprising a base body and a lock unit that is slidably mounted to the base body, the fixed hook being integrally provided on the base body, the latch rod being integrally formed on the lock unit and a plurality of combination dials being provided, the sliding movement of the lock unit being permitted when all of these combination dials are set to an unlocking code, and the latch rod integrally with the lock unit being configured to slide toward and away from the end of the fixed hook in this permitted state, thereby opening and closing the lock space.
[0008] Furthermore, the anti-theft locking device described in claim 2 is characterized in that, in addition to the requirements of claim 1, the base body is provided with an arc-shaped clamp recess on the opposite side of the locking unit, and a clamp piece, which is separate from the base body and together with the clamp recess forms a circular clamp space, is provided with the clamp recess and clamp piece to be attached to the handlebars of a motorcycle.
[0009] Furthermore, the anti-theft locking device described in claim 3 is characterized in that, in addition to the requirements described in claim 2, the base body and the clamp piece are fastened together by two clamp bolts with the handlebar in between.
[0010] Furthermore, the anti-theft locking device according to claim 4 is characterized in that, in addition to the requirements of claim 1 or 2, the locking unit is formed such that the thickness dimension of the upper side facing the base is narrower than the thickness reference dimension of the base which is configured to slide freely with respect to the base body.
[0011] Furthermore, the anti-theft locking device according to claim 5 is characterized in that, in addition to the requirements of claim 4, the unit casing constituting the outer shape of the locking unit has a matching dial housed inside, with dial operation openings on both sides thereof, and a matching window for visually checking the unlocking PIN at the top of the unit casing, the thickness dimension of the operating part in the dial operation opening is formed to be smaller than the thickness standard dimension, and the thickness dimension of the matching window in the matching window is formed to be even smaller than the thickness dimension of the operating part.
[0012] Furthermore, the anti-theft locking device described in claim 6 is characterized in that, in addition to the requirements described in claim 5, the external dimensions of the alignment dial are formed to be the same as the thickness reference dimension of the locking unit.
[0013] Furthermore, the anti-theft locking device according to claim 7 is characterized in that, in addition to the requirements of claim 1 or 2, the base body is provided with a lock rail having at least two lock grooves, the lock unit is provided with a lock pin that elastically fits into the lock groove, and an unlocking slider that is allowed to slide when all the combination dials are set to the unlocking PIN, and when the unlocking slider is in the locked state, the lock shift projection of the unlocking slider contacts the lock pin, creating a forced engagement state in which the lock pin remains engaged in the lock groove, and when the unlocking state is unlocked, the lock pin faces the free step of the unlocking slider when the unlocking slider is pushed in, releasing the forced engagement state between the lock pin and the lock groove, allowing the lock unit to move, and separating the latch rod, which is integrally formed with the lock unit, from the fixed hook.
[0014] Furthermore, the anti-theft locking device described in claim 8 is characterized in that, in addition to the requirements described in claim 7, the locking grooves in the base body are provided in multiple locations in between, one for locking and one for fully unlocking, and the locking space can be set in stages.
[0015] Furthermore, the anti-theft locking device described in claim 9 is characterized in that, in the state in which the lock space is closed and in the state in which it is fully open, the locking unit conceals the clamp bolt located on the opposite side of the lock space, thereby preventing the screwing operation onto that clamp bolt, while allowing the screwing operation to be performed from above the clamp bolt when the locking unit is in an intermediate position to be open.
[0016] Furthermore, the anti-theft locking device according to claim 10 is characterized in that, in addition to the requirements of claim 1 or 2, the locking space formed in a closed annular shape by the abutting of the fixed hook and the latch rod occupies 70% or more of the enclosed area in which the fixed hook forms a closed annular shape.
[0017] Furthermore, the anti-theft locking device described in claim 11 is characterized in that, in addition to the requirements described in claim 10, the abutting portion between the fixed hook and the latch rod is formed such that an inner fitting end is formed on the contact tip side of the fixed hook, and an outer receiving recess for receiving the inner fitting end is formed on the contact tip side of the latch rod, and the two are abutted together in an interlocking state. The above problem is solved by the means described in each of these claims.
[0018] Firstly, according to the invention described in claim 1, it is possible to obtain an anti-theft locking device that is robust and has sufficient security functions while being compact overall. Furthermore, since the anti-theft locking device is unlocked and locked by rotating a combination dial, the user does not need to carry a key and does not have to worry about losing the key.
[0019] Furthermore, according to the invention described in claim 2, the anti-theft locking device of the present invention can be securely and firmly attached to the handlebars of a motorcycle.
[0020] Furthermore, according to the invention described in claim 3, the base body and clamp piece that sandwich the handlebar can be securely clamped and fixed at both the front and rear by two clamp bolts.
[0021] Furthermore, according to the invention described in claim 4, the lock unit and, by extension, the anti-theft locking device can be formed in a slim state with a small overall width. Therefore, even if, for example, various other devices such as navigation systems, smartphones, ETC devices, etc., are already attached to the handlebars and there is limited space for aftermarket installation, the anti-theft locking device can be installed using only a small amount of space.
[0022] Furthermore, according to the invention described in claim 5, the lock unit can be formed such that its thickness gradually decreases from the base to the top (top). In other words, the lock unit and, by extension, the anti-theft locking device can be formed in a slim state.
[0023] Furthermore, according to the invention described in claim 6, since both sides of the setting dial are exposed in a protruding state from the dial operation opening, a structure can be obtained that makes it easy to rotate the setting dial.
[0024] Furthermore, according to the invention described in claim 7, it is possible to specifically realize an unlocking slider that can easily and reliably switch between a locked state and an unlocked state.
[0025] Furthermore, according to the invention described in claim 8, the sliding movement of the lock unit can be performed in steps (so-called click stop).
[0026] Furthermore, according to the invention described in claim 9, the clamp bolt located on the opposite side of the lock space is configured in such a way that tools cannot access the clamp bolt when the lock space is completely closed or fully open. Therefore, even if an unscrupulous person tries to remove the anti-theft locking device from the motorcycle (handlebar), such an act can be prevented.
[0027] Furthermore, according to the invention described in claim 10, since the fixed hook, which is formed integrally with the base body that is not a movable member, is formed to occupy 70% or more of the enclosed area (lock space) that forms a closed annular space, the fixed hook and the lock space can be formed firmly (with high rigidity), and sufficient strength can be provided to prevent damage by unscrupulous persons.
[0028] Furthermore, according to the invention described in claim 11, when forming the lock space in a closed annular shape, the fixing hook and the latch rod are butted together in a fitted state, thereby making it possible to maintain the closed annular state of the lock space more firmly.
[0029] This is a perspective view (a) showing the anti-theft locking device of the present invention mounted on the handlebars of a motorcycle as a helmet holder, a projection view (side view) (b) showing the anti-theft locking device with the lock space closed, and a projection view (side view) (c) showing the anti-theft locking device with the lock space fully open. This is a perspective view showing a helmet attached to the anti-theft locking device (helmet holder) mounted on a motorcycle. This is a perspective view showing the components of the anti-theft locking device in a disassembled state. This is a side view (a), rear view (b), and top view (c) showing the anti-theft locking device with the lock space closed. This is a perspective view (a) showing the anti-theft locking device with the lock space closed, a perspective view (b) showing the anti-theft locking device with the lock space fully open, and a perspective view (c) showing the state in which the lock unit is slid open by one notch from the closed state, making it possible to access the clamp bolt on the opposite side of the lock space.
[0030] The present invention is as shown in the following embodiments, but it is possible to make appropriate modifications to these embodiments within the scope of the technical idea of the present invention.
[0031] The present invention will now be described in detail based on the illustrated embodiments. The anti-theft locking device R of the present invention is a device that can hold a helmet H, which is required by law to be worn when riding a motorcycle M, near the handlebars B of the motorcycle M when it is parked or stopped, as shown in Figures 2 and 1(a) as an example. The anti-theft locking device R is broadly composed of a base body 1 and a locking unit 2 that is slidably assembled thereto, as shown in Figures 1 and 3, for example, and the locking unit 2 further includes a locking mechanism 3. The anti-theft locking device R also includes a clamp piece 5 for attaching it to the handlebars B of the motorcycle M.
[0032] The following describes each of these components. First, the base body 1 has a fixing hook 11 on its forward extension relative to the mounting base 10. Now, regarding the definition of the front-rear direction of the anti-theft locking device R, as shown in Figure 3 above, the applicant's trademark is written horizontally on the side of the locking unit 2, so the sliding direction of the locking unit 2 is defined as the horizontal direction, the side on which the fixing hook 11 is provided is defined as the front, and the opposite side is defined as the rear, rear, and back. Also, the side on which the locking unit 2 is provided relative to the base body 1 is defined as the top, upper, and upper part, and the side on which the clamp piece 5 is provided is defined as the bottom. Furthermore, the anti-theft locking device R is formed in a slim shape overall, and to emphasize this, the depth direction (width direction between the sides) will be described as the thickness direction or thickness dimension, etc. Furthermore, the actual mounting configuration of the anti-theft locking device R can be selected as appropriate by the user (rider). In many cases, as shown in Figures 1(a) and 2 above, for example, a mounting configuration is selected that utilizes the space near the throttle holder SH on the right side of the handlebar B, with the fixing hook 11 facing upwards and the locking unit 2 facing downwards. In this case, the sliding direction of the locking unit 2 is naturally vertical. The mounting base 10 of the base body 1 refers to the area from the bolt storage holes 12 provided on the front and rear of it to the base of the fixing hook 11. However, in reality, the base body 1 is a component integrally formed by forging, and its range cannot necessarily be clearly defined.
[0033] Furthermore, the area between the two bolt holes 12 is formed with a large arc-shaped recess approximately in the center below, and this area is designated as a clamp recess 13. By joining this clamp recess 13 and the clamp piece 5, an annular shape is formed, and a circular clamp space 5S is formed inside it. The handlebar B is then held in place by gripping it with this clamp space 5S, and the anti-theft lock device R is attached (fixed) to the handlebar B. When joining the mounting base 10 and the clamp piece 5, a clamp bolt 5B is used. The clamp bolt 5B is screwed into the tapping hole 52 of the bolt receiving portion 51 formed in the clamp piece 5 from the bolt hole 12 of the mounting base 10 to fix it to the handlebar B. In addition, since there are several types of handlebars with outer diameters ranging from 20 mm to about 20 mm, it is preferable to include a resin ring-shaped adjustment sleeve 55 in the clamp space 5S so that the anti-theft lock device R can be attached to these in a general way. Furthermore, a lap-fit structure is adopted at the connection point between the mounting base 10 and the clamp piece 5 to further strengthen the fixation between the two. Specifically, as shown in the partial view of Figure 3 above, the mounting base 10 has lap-fit protrusions 14 formed on both sides of the release side of the clamp recess 13, and correspondingly, the clamp piece 5 has a lap-fit recess 54 formed closer to the inside of the bolt receiving portion 51.
[0034] Next, the fixing hook 11, which is formed as an extension in front of the mounting base 10, will be described. The fixing hook 11 cooperates with the latch rod 22 of the lock unit 2, which will be described later, to form a closed annular shape of the lock space RS. The fixing hook 11 comprises an extension base 11a formed as an extension in front of the mounting base 10, a relay portion 11b which continues from there in an inclined rising shape as an example, and a closing portion 11c which is further formed to return parallel to the extension base 11a, and the overall shape is deliberately formed to exhibit a C-shape when viewed from the side. The closing portion 11c and the latch rod 22, which will be described later, are butted together in a lap-fit (lap joint) manner when in contact, as shown in Figures 4(c) and 5(a), for example, and the tip of the closing portion 11c forms an inwardly fitted end 11d which protrudes in a convex shape (wedge-shaped pointed shape) when viewed from above. Incidentally, the tip of the latch rod 22 in the corresponding lock unit 2 is provided with an external receiving recess 22a that is substantially V-shaped or U-shaped in plan view to receive the internal fitting end 11d, as will be described later (see Figure 5(b)).
[0035] Furthermore, the mounting base 10 of the base body 1 is provided with a lock rail 15 that, in combination with the lock unit 2, is responsible for the locking action. This lock rail 15 is provided parallel to the upper surface of the mounting base 10 via rail posts 16 erected at the front and rear of the mounting base 10, and a plurality of lock grooves 17 are formed on its upper part. Of course, the formation of lock grooves 17 means that partition protrusions 17a are provided at the boundaries between these grooves, and in a side view, these lock grooves 17 and partition protrusions 17a are formed to exhibit a continuous, smooth wave-like unevenness. With this configuration, the sliding movement of the lock unit 2 becomes an intermittent slide (so-called click stop) that stops at each lock groove 17 that acts as a notch. Thus, the lock rail 15 is supported above the mounting base 10 by two rail posts 16 at both its front and rear ends, and the space between these rail posts 16 becomes a restricting space 16G that restricts the range of motion of the lock unit 2. For this reason, the inner opposing surfaces of the front and rear rail posts 16 act as stopper surfaces. Of course, when the lock space RS is closed, the inner fitting end 11d of the fixing hook 11 and the outer receiving recess 22a of the latch rod 22 come into contact, so these also function as stopper surfaces when the lock space RS is in the closed ring state. Furthermore, the side surface of the lock rail 15 and the stepped slide guide 18 provided on the mounting base 10 below it are responsible for restricting the sliding guidance of the lock unit 2.
[0036] Next, the lock unit 2 will be described. The lock unit 2 includes the lock mechanism 3, and the unit casing 20 that forms the outside of the lock unit 2 will be described first. Considering the assembly work required to incorporate the lock mechanism 3, which includes the combination dial 30, etc., into the interior (inside the casing), the unit casing 20 naturally consists of a pair of casing pieces 20a that are joined together in a left-right split manner. In the completed state after joining, that is, in the assembled state where the lock rail 15 is sandwiched between the left and right pair of casing pieces 20a, the two are fastened (assembled) together by rivet pins 21 in a way that prevents disassembly. Also, a latch rod 22, which is integrated with the unit casing 20, is provided at the front of the unit casing 20 from the middle in the height direction. This latch rod 22 is formed to protrude forward from the unit casing 20 and, as described above, cooperates with the fixing hook 11 to form a closed annular shape for the lock space RS. Furthermore, the tip of the latch rod 22 is provided with an external receiving recess 22a that is substantially V-shaped or U-shaped in plan view, as shown in Figures 4(c) and 5(b) above, for example, so as to be able to receive the inner fitting end 11d of the fixing hook 11, and is configured to form a strong closed annular lock space RS when locked.
[0037] Furthermore, a restricting projection 23 is provided at the lower rear of the unit casing 20 to restrict tool access to the rear (opposite side of the lock space RS) clamp bolt 5B. This restricting projection 23 has a restricting portion 23a at its rear end and a bolt operation hole 23b that penetrates vertically inside it. Incidentally, this restricting portion 23a is configured such that, when the lock space RS is closed, the upper part of the bolt operation hole 23b of the rear clamp bolt 5B is partially covered (concealed), preventing tool access to the clamp bolt 5B (see Figure 4(c)). Also, when the lock space RS is opened to some extent, specifically when the unit casing 20 is moved backward by, for example, one notch, the head of the clamp bolt 5B and the bolt operation hole 23b align, allowing tool access to the clamp bolt 5B (see Figure 5(c)).
[0038] Furthermore, a configuration is provided in the lower center of the unit casing 20 for restricting the sliding movement of the lock unit 2 and its range of movement. Specifically, a guide slot 24 is formed near the lower edge, which sandwiches the lock rail 15 of the base body 1 from the left and right directions and slides the lock rail 15. A stopper block 25 is formed on the lower front side of the guide slot 24, which fits into the restricting space 16G between the rail posts 16. In addition, a guide rib 26, which is formed to protrude inward relatively to form the guide slot 24, works together with the slide guide 18 to ensure reliable sliding movement of the lock unit 2 relative to the base body 1.
[0039] Incidentally, these guide slots 24, stopper blocks 25, and guide ribs 26 are all formed as protruding or recessed portions on the inside of each casing piece 20a, since the unit casing 20 is composed of interlocking casing pieces 20a. Furthermore, the space in the upper center of the unit casing 20 serves as a lock housing 27 for accommodating the lock mechanism 3, and dial operation openings 28 for turning the alignment dial 30 are provided on both sides near the top of this section. Additionally, three alignment windows 29 are provided in the front-to-back direction on the upper part (top) of the unit casing 20. Incidentally, when unlocking, the lock state of the push button 32a is released and the push operation becomes possible by aligning the dial numbers visible through these three alignment windows 29 with a predetermined number (unlocking PIN).
[0040] Furthermore, the shape of the upper part (top) of the unit casing 20 is formed as a tapered or isosceles trapezoidal shape, with the thickness narrowing upwards when viewed from the front-to-back direction, as shown in Figure 4(b) above as an example, and is formed to be narrower than T (thickness reference dimension T), which represents the overall thickness of the unit casing 20. Here, as shown in Figure 4(b), the width dimension of the dial operation opening 28 is defined as the operation opening thickness dimension T1, and the width dimension of the upper mating window 29 is defined as the mating window thickness dimension T2. From Figure 4(b), it can be seen that in this embodiment, the operation opening thickness dimension T1 is formed to be smaller than the thickness reference dimension T, and the mating window thickness dimension T2 is formed to be smaller than the operation opening thickness dimension T1. The external dimensions of the mating dial 30 are formed to be the same as the thickness reference dimension T of the lock unit 2. This design allows the anti-theft locking device R to be slim overall (while keeping the width dimension small), and also exposes both sides of the matching dial 30 in a protruding state from the dial operation opening 28, making it easy for the user to rotate it.
[0041] Next, the lock mechanism 3 housed within the unit casing 20 (lock housing 27) will be described. Here, the lock mechanism 3 refers primarily to the mechanism responsible for unlocking and locking, but the lock groove 17 of the lock rail 15 in the base body 1 also plays a part in that function, and it is a general term for any member or part that contributes to the locking action in some way (it does not necessarily refer to a movable member). The lock housing 27 of the unit casing 20 is substantially the housing for the combination dial 30, and the combination dial 30 comprises a dial clamp 30a provided at its rotation center and an operating ring 30b fitted to it. The dial clamp 30a is supported by the bearing portion 27a of the lock housing 27, and the operating ring 30b is positioned between the bearing portions 27a. The adjustment dial 30 is provided so that one number can be seen through each adjustment window 29, and the dial operation opening 28 is configured such that a part of the adjustment dial 30 is exposed, making it easy for the user to rotate the adjustment dial 30 with their fingers. A click spring 31 for clicking the operating ring 30b of the adjustment dial 30 is provided directly below the dial holding space 27b.
[0042] Furthermore, the dial clamp 30a of these matching dials 30 is configured such that when the unlocking code is matched, the unlocking slider 32, which is provided to pass through the dial clamp 30a, is pushed backward and moves. That is, the unlocking slider 32 comprises a push button 32a protruding from the front end of the unit casing 20 and a key rod 32b extending behind it, and the key rod 32b is further provided with a key projection 32c that fits into the key groove (not shown) of the dial clamp 30a. Note that this mechanism itself is a well-known technology and a detailed explanation will be omitted. Furthermore, a lock shift projection 32d is provided on the lower surface of the push button 32a, and a free step 32e is provided on the front side of this lock shift projection 32d. The unlocking slider 32 is also set (biased) to a standby state in the forward position at all times, and a set spring 34 is provided to surround the key rod 32b for this purpose. Of course, the range of motion of the unlock slider 32 (push button 32a) (the range of motion when the unlocking PIN is correct) is restricted to the range in which the front end of the push button 32a is pushed to the front end of the unit casing 20, but this is also a well-known technology, so a detailed explanation will be omitted.
[0043] Next, the lock pin 35, which is responsible for switching the entire lock unit 2 between a movable state and a non-movable state, will be described. The lock pin 35 is provided on the inner side of the unit casing 20, closer to the front, so as to be movable in the vertical direction, and is constantly biased downward by the lock set spring 36. Below the lock pin 35, there is a lock projection 35a that fits into a lock groove 17 formed in the lock rail 15 of the base body 1, and above it, there is a short cylindrical shift receiving portion 35b. Furthermore, when locked, the upper end of the shift receiving portion 35b is pressed down by the lock shift projection 32d of the unlock slider 32, causing the lock projection 35a of the lock pin 35 to fit into the lock groove 17, resulting in a locked state that prevents the movement of the entire lock unit 2.
[0044] The anti-theft lock device R of the present invention has the configuration as described above and operates as follows. <1. Locking action> First, the locking action, which is the original action of the anti-theft lock device R, will be described. (1) Initial state (locked state) In the locked state (the state where the lock space RS is closed), the lock unit 2 is positioned closer to the front end with respect to the base body 1. Directly, the fixed hook 11 and the latch rod 22 responsible for the locking action are in a contact state where the outer receiving recess 22a surrounds approximately half of the inner fitting end 11d of the fixed hook 11 in a plan view (see FIGS. 4(c) and 5(a)). Also, in the locking mechanism section 3, it is assumed that the combination dial 30 does not match the unlocking password number. In this state, the unlocking slider 32 is in a standby state where the push button 32a protrudes forward of the unit casing 20 due to the action of the set spring 34, and it cannot move from this standby state. That is, in this state, the lock shift protrusion 32d of the unlocking slider 32 pushes the lock pin 35 downward, and the lock protrusion 35a is forcedly pushed into the lock groove 17 of the lock rail 15 in the base body 1. As a result, the sliding movement of the lock unit 2 with respect to the base body 1 is blocked, and the unlocking operation, that is, the operation of pushing the unlocking slider 32 into the lock unit 2, cannot be performed.
[0045] (2) To unlock, first, following the usual procedure, rotate each of the combination dials 30 so that the key numbers of the combination dials 30 (the dial numbers visible from the combination window 29) match the unlocking PIN. When the unlocking PIN matches, the push-in slide of the unlock slider 32 is permitted, and when the push button 32a of the unlock slider 32 is pressed, the key rod 32b, which is integrated with the push button 32a, also moves backward, and the free step 32e moves above the lock pin 35. As a result, the lock pin 35, which was being pushed in by the lock shift projection 32d, can move upward against the lock set spring 36, and the forced engagement between the lock projection 35a and the lock groove 17 is released. In this state, while pressing the push button 32a of the unlock slider 32, move the entire lock unit 2 backward, separate the latch rod 22, which is integrated with it, from the fixing hook 11, and open the lock space RS. At this time, the lock pin 35 is constantly pressed against the lower lock groove 17 by the action of the lock set spring 36, so the lock unit 2 slides over the partition projection 17a in a click-stop manner.
[0046] (3) Holding operation of the helmet, etc. After that, the helmet H is held in the unlocked lock space RS. For example, the ring h2 of the chin strap h1 provided on the helmet H is passed through the tip of the latch rod 22 which has been separated from the fixing hook 11 and held in place (see Figure 2). After performing this operation, the latch rod 22 is slid towards the fixing hook 11 to relock it.
[0047] (4) To relock, first press the push button 32a of the unlock slider 32, move the entire lock unit 2 forward (towards the fixed hook 11), and bring the fixed hook 11 and the latch rod 22 into contact, closing the lock space RS. Then, rotate each combination dial 30 to an appropriate angle so that it is not set to the unlock code. In this state, it becomes impossible to press the push button 32a, and the lock unit 2 cannot be slid (it is locked).
[0048] 〈2. Security function〉Next, the security function of the anti-theft lock device R of the present invention will be described. (1) Security function by the fixed hook In the anti-theft lock device R of this embodiment, the lock space RS configured in a closed loop is configured such that the contact combination of the fixed hook 11 and the latch rod 22 causes the fixed hook 11 to occupy 70% or more of the surrounding range forming the closed loop. That is, the fixed hook 11, which is not a movable member, can be set in a strong form integrally with the base body 1, and can provide sufficient strength to avoid destruction by unauthorized persons.
[0049] (2) Security function by the latch rod The latch rod 22 is integrally formed with the unit casing 20, and this also has a high degree of design freedom in terms of strength, enabling a high-strength design, and can also reduce the slide movable range. While being a movable member, it overcomes vulnerability. In addition, the fixed hook 11 and the latch rod 22 are in a semi-fitted (missing) contact state when the lock space RS is in a closed state, and thus the closing action can be firmly maintained.
[0050] (3) From the standpoint of preventing removal of the clamp piece and preventing theft, it is necessary to prevent unscrupulous individuals from removing the anti-theft locking device R from the motorcycle M (handlebar B). For this purpose, the front clamp bolt 5B, which is visible at the bottom of the lock space RS, is configured so that when locked, a tool of typical dimensions, such as a hexagon wrench, cannot access it because the latch rod 22 is located above it, as shown in Figure 5(a) as an example. Similarly, with respect to the rear clamp bolt 5B, when the lock space RS is closed, the bolt operation hole 23b of the restricting projection 23 does not align with the clamp bolt 5B (head), and the restricting part 23a is positioned so as to partially cover the clamp bolt 5B, thus preventing tool access to this clamp bolt 5B as well. In addition, if the lock space RS is fully open from the unlocking position, as shown in Figure 5(b) as an example, the lock unit 2, which has moved to the rearmost position, almost completely conceals the top of the rear clamp bolt 5B, thus preventing tool access in this case as well.
[0051] <3. Installation and Usage> (1) Installation The anti-theft locking device R of the present invention is best used by attaching it to the handlebar B of a motorcycle M, and the installation and usage will be described below. First, the anti-theft locking device R of the present invention has a small width and a slim configuration overall, and can be installed, for example, in the small space near the throttle holder SH on the handlebar B (see Figures 1(a) and 2).
[0052] When attaching the anti-theft locking device R to the handlebar B of the motorcycle M, the anti-theft locking device R is unlocked and the handlebar B is sandwiched between the base body 1 and the clamp piece 5, and the two are fastened together with clamp bolts 5B at the front and rear. At this time, the front clamp bolt 5B is fastened by completely retracting the lock unit 2 to the rear, as shown in Figure 5(b) as an example, so that the latch rod 22 is not positioned above the bolt housing hole 12, thereby allowing tool access. At this time, the rear clamp bolt 5B is in a concealed state as the rear bolt housing hole 12 is covered by the lock unit 2, making it inaccessible with a tool. Therefore, for the rear clamp bolt 5B, the lock unit 2 is moved back by one notch from the closed state of the lock space RS, as shown in Figure 5(c) as an example, so that the bolt housing hole 12 and the bolt operation hole 23b are aligned, allowing tool access from above. Then, the fastening work of the rear clamp bolt 5B is performed in this state. In this case, an adjustment sleeve 55 corresponding to the diameter of handlebar B may be used as appropriate.
[0053] The fastening work using the clamp bolt 5B can be performed by temporarily fixing the anti-theft locking device R in an orientation that makes the work easier. However, in actual use, it is fixed in a position such as in front of the anti-theft locking device R, i.e., with the lock space RS facing upwards (see Figures 1(a) and 2), or by selecting an orientation and position according to the shape of the user's vehicle. At this time, the base body 1 and the clamp piece 5 are fitted together in a lap-fitting manner (lap-fitting shape) by the interlocking protrusion 14 and interlocking recess 54, thereby ensuring a firm fixation.
[0054] (2) Use as a helmet holder In order to use the anti-theft locking device R as a helmet holder, the ring h2 of the helmet H can be directly held in the lock space RS as described above, or it can be held via a wire with eye splices formed at both ends. When the helmet H is held via a wire, the degree of freedom in where the helmet H can be placed is increased, and for example, the helmet H can be placed upright on the relatively flat top surface of the fuel tank. When locking and unlocking, the combination dial 30 is operated, and this operation can be performed reliably and smoothly because the thickness of the dial operation opening 28 of the unit casing 20 has been narrowed so that the combination dial 30 can protrude sufficiently outward from the dial operation opening 28.
[0055] [Other Uses] As mentioned above, the anti-theft locking device R of the present invention has an optimal form as a helmet holder for a motorcycle M, but it can naturally also be used as other anti-theft equipment. Specifically, for example, it can be attached to the handlebars or frame of a bicycle as a helmet holder, which has recently been strongly recommended for use with bicycles. Furthermore, even if the mounting target member does not have a circular cross-section but is flat, it can be attached without using the clamp piece 5, and can be attached to various locations.
[0056] R Anti-theft locking device 1 Base body 2 Lock unit 3 Lock mechanism 5 Clamp piece 10 Mounting base 11 Fixing hook 11a Extension base 11b Intermediate part 11c Closing part 11d Inner fitting end 12 Bolt storage hole 13 Clamp recess 14 Interlocking protrusion 15 Lock rail 16 Rail post 16G Restricting space 17 Lock groove 17a Partition projection 18 Slide guide 20 Unit casing 20a Casing piece 21 Rivet pin 22 Latch rod 22a Outer receiving recess 23 Restricting projection 23a Restricting part 23b Bolt operation hole 24 Guide slot 25 Stopper block 26 Guide rib 27 Lock storage part 27a Bearing part 27b Dial holding space 28 Dial operation opening 29 Alignment window 30 Alignment dial 30a Dial clamp 30b Operating ring 31 Click spring 32 Unlock slider 32a Push button 32b Key rod 32c Key projection 32d Lock shift projection 32e Free step 34 Set spring 35 Lock pin 35a Lock projection 35b Shift receiving part 36 Lock set spring 5S Clamp space 5B Clamp bolt 51 Bolt receiving part 52 Tapping hole 54 Recessed recess 55 Adjustment sleeve H Helmet h1 Chin strap h2 Ring M Motorcycle B Handlebar SH Throttle holder RS Lock space T Thickness standard dimension T1 Thickness dimension of operating opening T2 Thickness dimension of mating window part
Claims
1. An anti-theft locking device comprising a fixed hook and a latch rod combined in a closed annular shape to form a lock space, and the latch rod being slid to release the lock space, wherein the anti-theft locking device comprises a base body and a lock unit slidably mounted to the base body, wherein the fixed hook is integrally provided on the base body, and the latch rod is integrally formed on the lock unit and a plurality of combination dials are provided, and when all of these combination dials are set to an unlocking code, the lock unit is permitted to slide, and in this permitted state, the latch rod integrally with the lock unit slides toward and toward the end of the fixed hook to open and close the lock space.
2. The anti-theft locking device according to claim 1, characterized in that the base body is provided with an arc-shaped clamp recess on the opposite side of the locking unit, and a clamp piece separate from the base body is provided, which together with the clamp recess forms a circular clamping space, and the device is attached to the handlebars of a motorcycle by means of the clamp recess and the clamp piece.
3. The anti-theft locking device according to claim 2, characterized in that the base body and the clamp piece are fastened together by two clamp bolts with the handlebar in between.
4. The anti-theft locking device according to claim 1 or 2, characterized in that the thickness dimension of the upper part of the locking unit facing the base is narrower than the thickness reference dimension of the base which is configured to slide freely with respect to the base body.
5. The anti-theft locking device according to claim 4, wherein the unit casing constituting the outer shape of the locking unit has a matching dial housed inside, openings for dial operation on both sides thereof, and a matching window for visually viewing the unlocking code at the top of the unit casing, the thickness dimension of the operating part in the dial operation opening is formed to be smaller than the standard thickness dimension, and the thickness dimension of the matching window in the matching window is formed to be even smaller than the thickness dimension of the operating part.
6. The anti-theft locking device according to claim 5, characterized in that the external dimensions of the alignment dial are formed to be the same as the thickness reference dimension of the locking unit.
7. The anti-theft locking device according to claim 1 or 2, characterized in that the base body is provided with a lock rail having at least two lock grooves, the lock unit is provided with a lock pin that elastically fits into the lock groove, and an unlocking slider that is allowed to slide when all the combination dials are set to the unlocking PIN, and when the unlocking slider is in the locked state, a lock shift projection of the unlocking slider contacts the lock pin, creating a forced engagement state in which the lock pin remains engaged in the lock groove, and when the unlocking state is unlocked, the lock pin faces the free step of the unlocking slider when the unlocking slider is pushed in, releasing the forced engagement state between the lock pin and the lock groove, allowing the lock unit to move, and separating the latch rod, which is integrally formed with the lock unit, from the fixed hook.
8. The anti-theft locking device according to claim 7, characterized in that the lock grooves in the base body are provided in two locations, one for locking and one for fully unlocking, as well as multiple locations between them, so that the open state of the lock space can be set in stages.
9. The anti-theft locking device according to claim 3 or 8, characterized in that, when the lock space is closed or fully open, the locking unit conceals the clamp bolt located on the opposite side of the lock space, thereby preventing screwing into that clamp bolt, while allowing screwing into the clamp bolt from above when the locking unit is in an intermediate open position.
10. The anti-theft locking device according to claim 1 or 2, characterized in that the lock space formed in a closed annular shape by the abutting of the fixed hook and the latch rod occupies 70% or more of the enclosed area in which the fixed hook forms a closed annular shape.
11. The anti-theft locking device according to claim 10, characterized in that the abutting portion between the fixed hook and the latch rod has an inner fitting end formed on the contact tip side of the fixed hook, and an outer receiving recess formed on the contact tip side of the latch rod to receive the inner fitting end, and the two are abutted together in an engaged state.