Anti-theft locking device

Abstract

[Challenge] The technical challenge is to develop a theft prevention locking device that is robust and provides sufficient security while being suitable as a compact helmet holder. [Solution] The anti-theft locking device R of the present invention combines a fixed hook 11 and a latch rod 22 to enable the closing or opening of the lock space RS. It comprises a base body 1 and a lock unit 2 that is slidable relative to the base body 1. The fixed hook 11 is integrally provided on the base body 1, while the latch rod 22 is integrally formed on the lock unit 2, and a plurality of combination dials 30 are provided. The lock unit 2 is permitted to slide when all of these combination dials 30 are set to an unlocking code. In this permitted state, the latch rod 22, which is integral with the lock unit 2, slides toward and away from the end of the fixed hook 11 to open and close the lock space RS.

Description

Technical Field

[0001] The present invention relates to an anti-theft locking device suitable for use as a helmet holder retrofitted around the handlebars of, for example, a motorcycle.

Background Art

[0002] When riding a motorcycle, it is legally obligatory for both the rider and the passenger to wear a helmet. Accordingly, motorcycles are standardly equipped with an anti-theft locking device commonly called 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 the recognition of the importance of the helmet and affection for it, when keeping the helmet on the motorcycle when not in use, there are not a few desires to, for example, keep the helmet placed upright on the upper surface of the fuel tank. In response to such requests, it is possible to respond by adding a helmet holder to the handlebar in the vicinity of the fuel tank. For this purpose, helmet holders that can be retrofitted to the handlebar are already available on the market.

[0004] On the other hand, currently, many motorcycles have aftermarket mounts for smartphones and other devices concentrated around the handlebars to allow the use of various services such as navigation, and the available mounting locations for helmet holders are becoming limited. As a result, aftermarket helmet holders are required to be compact. In addition, given that the primary function required is theft prevention, existing products are appreciated for their convenience as aftermarket equipment, but their insufficient anti-theft and security performance is often overlooked or tolerated. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2015-24703 [Patent Document 2] Japanese Patent Publication No. 2016-113047 [Overview of the Initiative] [Problems that the invention aims to solve]

[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. [Means for solving the problem]

[0007] In other words, the anti-theft locking device described in claim 1 is An anti-theft locking device that combines a fixed hook and a latch rod in a closed ring shape to form a locking space, and allows the locking space to be released by sliding the latch rod, This anti-theft locking device comprises a base body and a locking unit that is slidably mounted to the base body. The base body is integrally provided with the fixing hook, The lock unit is characterized in that the latch rod is integrally formed with 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 allowed to slide, and in this allowed state, the latch rod, which is integral with the lock unit, slides toward and toward the end of the fixed hook to open and close the lock space.

[0008] Furthermore, the anti-theft locking device described in claim 2, in addition to the requirements described in claim 1, The base body is provided with an arc-shaped clamp recess on the opposite side of the locking unit, and also includes a clamp piece, which is separate from the base body and together with the clamp recess forms a circular clamp space. The clamp recess and clamp piece are used to attach the device to the handlebars of a motorcycle.

[0009] Furthermore, the anti-theft locking device described in claim 3, in addition to the requirements described in claim 2, The base body and the clamp piece are characterized by being fastened together by two clamp bolts that sandwich the handlebar.

[0010] Furthermore, the anti-theft locking device described in claim 4, in addition to the requirements described in claim 1 or 2, The locking unit is characterized in that the thickness dimension of the upper part 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 described in claim 5, in addition to the requirements described in claim 4, The unit casing that constitutes the outer shape of the lock unit houses an alignment dial on the inside, with dial operation openings on both sides, and an alignment window for visually viewing the unlocking PIN is opened at the top of the unit casing. The thickness dimension of the operating portion in the dial operating opening is formed to be smaller than the standard thickness dimension, and the thickness dimension of the mating window portion in the mating window is formed to be even smaller than the thickness dimension of the operating portion.

[0012] Furthermore, the anti-theft locking device described in claim 6, in addition to the requirements described in claim 5, The external dimensions of the aforementioned alignment dial are characterized by being the same as the thickness reference dimension of the lock unit.

[0013] Furthermore, the anti-theft locking device described in claim 7 is, in addition to the requirements described in claim 1 or 2, The base body is provided with a lock rail having at least two lock grooves, The locking unit is provided with a locking pin that elastically fits into the locking groove, and an unlocking slider that is allowed to slide when all the combination dials are set to the unlocking PIN. This unlocking slider is characterized in that, when it 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 seated in the lock groove, and when it is in the unlocked state, the unlocking slider is pushed in, causing the lock pin to face the free step of the unlocking slider, 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 this lock unit, from the fixed hook.

[0014] Furthermore, the anti-theft locking device described in claim 8, in addition to the requirements described in claim 7, The lock grooves in the base body are provided in two locations, one for locking and one for fully unlocking, as well as multiple grooves in between, and are configured to allow the open state of the lock space to be set in stages.

[0015] Furthermore, the anti-theft locking device described in claim 9 is as described in the previous claim 3 notesIn addition to the requirements described above, In the state where the lock space is closed and the fully opened state, the lock unit conceals the clamp bolt located on the opposite side of the lock space among the two clamp bolts, and prevents the screwing operation to the clamp bolt. Ruko It is characterized by the above.

[0016] Also, the lock device for preventing theft according to claim 10 described above, in addition to the requirements described in the above claim Section 9 In addition to the requirements described above, In the state where the lock space is closed and the fully opened state, the lock unit conceals the clamp bolt located on the opposite side of the lock space among the two clamp bolts, prevents the screwing operation to the clamp bolt, and is configured such that the screwing operation can be performed from above the clamp bolt at the position during the opening of the lock unit. It is characterized by the above.

[0017] Also, the lock device for preventing theft according to claim 11 described above, in addition to the requirements described in claim 1 or 2 above, The lock space configured in a closed loop by the abutment of the fixed hook and the latch rod is characterized in that the fixed hook occupies 70% or more of the surrounding range forming the closed loop.

[0018] Also, the lock device for preventing theft according to claim 12 described above, in addition to the requirements described in the above claim 11 In addition to the requirements described above, The abutting portion of the fixed hook and the latch rod is characterized in that an inner fitting end is formed on the abutting tip side of the fixed hook, and an outer receiving recess for receiving the inner fitting end is formed on the abutting tip side of the latch rod, and the two are abutted in a fitted state. And the problems are solved by the means described in each of these claims.

Effect of the Invention

[0019] 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 there is no worry of losing it.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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 made slim.

[0024] 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.

[0025] 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.

[0026] Furthermore, according to the invention described in claim 8, the sliding movement of the locking unit can be performed in steps (so-called click stop).

[0027] Also, claim 9 or 10 According to the invention described, 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.

[0028] Also, claims 11 According to the invention described, since the fixed hook, which is formed integrally with the non-movable base body, is formed to occupy more than 70% of the enclosed area (lock space) that forms a closed annular space, the fixed hook and lock space can be formed firmly (with high rigidity), and sufficient strength can be provided to prevent damage by unscrupulous individuals.

[0029] Also, claims 12 According to the invention described, when forming a closed annular lock space, the fixing hook and the latch rod are abutted together in a fitted state, thereby making it possible to maintain a more robust closed annular state of the lock space. [Brief explanation of the drawing]

[0030] [Figure 1] The images show (a) a perspective view of the anti-theft locking device of the present invention mounted on the handlebars of a motorcycle as a helmet holder, (b) a projection view (side view) showing the anti-theft locking device with the lock space closed, and (c) a projection view (side view) showing the anti-theft locking device with the lock space fully open. [Figure 2] This is a perspective view showing a helmet attached to an anti-theft locking device (helmet holder) mounted on a motorcycle. [Figure 3] This is a perspective view showing the components of an anti-theft locking device in a disassembled state. [Figure 4] These are a side view (a), a rear view (b), and a top view (c) showing an anti-theft locking device with the lock space in a closed position. [Figure 5] The perspective view (a) shows the anti-theft locking device with the lock space closed, the perspective view (b) shows the anti-theft locking device with the lock space fully open, and the perspective view (c) shows the lock unit slid open by one notch from the closed state, allowing access to the clamp bolt on the opposite side of the lock space. [Modes for carrying out the invention]

[0031] 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. [Examples]

[0032] The present invention will be described in detail below based on the illustrated embodiments. As an example, the anti-theft locking device R of the present invention is a device that can hold a helmet H, which is legally required 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). The anti-theft locking device R can be broadly described as comprising, for example, a base body 1 and a locking unit 2 that is slidably mounted thereto, as shown in Figures 1 and 3. 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 handlebar B of the motorcycle M.

[0033] The following describes each of these components. First, the base body 1 is equipped with a fixing hook 11 on its forward extension relative to the mounting base 10. To explain 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 affixed horizontally to the side of the locking unit 2. Therefore, the sliding direction of the locking unit 2 is defined as horizontal, the side on which the fixing hook 11 is provided is defined as the front, and the opposite side is defined as the rear. Furthermore, the side on which the locking unit 2 is provided relative to the base body 1 is defined as the top, 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 sides) will be described as the thickness direction or thickness dimension. In addition, the actual mounting method of the anti-theft locking device R can be appropriately selected by the user (rider), and in many cases, as an example shown in Figures 1(a) and 2 above, a mounting method is selected in which the fixing hook 11 faces upward and the locking unit 2 faces downward, utilizing the space near the throttle holder SH on the right side of the handlebar B. In this case, the sliding direction of the locking unit 2 is naturally the up and down direction. The mounting base 10 of the base body 1 refers to the area from the bolt housing holes 12 provided at the front and rear 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.

[0034] 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 the 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, to ensure a stronger connection between the mounting base 10 and the clamp piece 5, a lap-fit ​​structure is employed. 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.

[0035] Next, we will describe the fixing hook 11 which is formed as an extension in front of the mounting base 10. 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 in the lock space RS. The fixing hook 11 comprises an extension base 11a formed to extend forward from the mounting base 10, a relay portion 11b that continues from there in an inclined upward direction, for example, and a closing portion 11c that is further formed to return parallel to the extension base 11a, and is deliberately formed in a shape that exhibits 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-fitting manner (lap joint) 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 that 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, in a plan view, has a roughly V-shape or U-shape to receive the internal fitting end 11d, as will be described later (see Figure 5(b)).

[0036] 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, for example. 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. Therefore, 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 a 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.

[0037] Next, lock unit 2 to I will explain about that. The lock unit 2 includes the lock mechanism 3, and we will first explain the unit casing 20 that forms the outside of the lock unit 2. 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. Furthermore, 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 of its height. 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 lock space RS. The tip of the latch rod 22 is provided with an external receiving recess 22a that is approximately V-shaped or U-shaped in plan view, as shown in Figures 4(c) and 5(b) above as an example, so that it can receive the inner fitted end 11d of the fixing hook 11, and is configured to form a strong closed annular lock space RS when locked.

[0038] 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)).

[0039] Furthermore, a configuration is provided in the lower center of the unit casing 20 for the sliding movement of the lock unit 2 and for restricting its range of movement. Specifically, a guide slot 24 is formed near the lower edge, which clamps 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.

[0040] Incidentally, since the unit casing 20 is composed of interlocking casing pieces 20a, 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. Furthermore, the space in the upper center of the unit casing 20 serves as a lock housing 27 for accommodating the lock mechanism 3. Dial operation openings 28 for turning the combination dial 30 are provided on both sides near the top of this opening, and three alignment windows 29 are provided in the front-to-back direction on the top (summit) 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).

[0041] Furthermore, the shape of the upper part (top) of the unit casing 20 is formed in a tapered or isosceles trapezoidal shape, with the thickness dimension 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) above, 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. Furthermore, as can be seen from Figure 4(b) above, in this embodiment, the thickness dimension T1 of the operating opening is formed to be smaller than the standard thickness dimension T, and the thickness dimension T2 of the mounting window is formed to be smaller than the thickness dimension T1 of the operating opening. Furthermore, the external dimensions of the alignment dial 30 are formed to be the same as the thickness reference dimension T of the lock unit 2. This makes the anti-theft locking device R slim overall (while keeping the width dimension small), while also exposing both sides of the alignment dial 30 in a protruding state from the dial operation opening 28, resulting in a configuration that makes it easy for the user to rotate the dial.

[0042] Next, the lock mechanism 3 housed within the unit casing 20 (lock housing 27) will be described. Here, the lock mechanism 3 primarily refers 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 movable members). The lock housing section 27 of the unit casing 20 is substantially a housing section 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 the outside thereof. The dial clamp 30a is supported by the bearing portion 27a of the lock housing portion 27, and the operating ring 30b is positioned between the bearing portions 27a. The alignment dial 30 is provided so that one number can be seen through each alignment window 29, and the dial operation opening 28 is configured such that a part of the alignment dial 30 is exposed, making it easy for the user to rotate the alignment dial 30 with their fingers. Furthermore, a click spring 31 for stopping the operating ring 30b of the adjustment dial 30 is provided directly below the dial holding space 27b.

[0043] 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, so a detailed explanation will be omitted. Furthermore, a lock shift projection 32d is provided on the underside of the push button 32a, and a free step 32e is provided on the front side of this lock shift projection 32d. The unlock slider 32 is always set (biased) in a standby state forward, and a set spring 34 for this purpose is provided so as to surround the key rod 32b. 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.

[0044] 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.

[0045] The anti-theft locking device R of the present invention has the configuration described above and operates as follows. <1. Tablet Action> First, let's explain the locking function, which is the primary function of the anti-theft locking device R. (1) Initial state (locked state) In the locked state (with the lock space RS closed), the lock unit 2 is positioned towards the front of the base body 1, and the fixing hook 11 and latch rod 22, which are directly responsible for the locking action, are in contact with each other in a way that the outer receiving recess 22a encloses about half of the inner fitting end 11d of the fixing hook 11 in a plan view (see Figures 4(c) and 5(a)). Furthermore, in the lock mechanism 3, the combination dial 30 is not set to the unlocking PIN. In this state, the unlocking slider 32 is in a standby state with the push button 32a protruding forward from the unit casing 20 due to the action of the set spring 34, and it cannot move from this standby state. In other words, in this state, the lock shift projection 32d of the unlocking slider 32 pushes the lock pin 35 downward, forcibly pushing the lock projection 35a into the lock groove 17 of the lock rail 15 on the base body 1. As a result, the sliding movement of the lock unit 2 relative to the base body 1 is prevented, and the unlocking operation, i.e., the pushing operation of the unlocking slider 32 into the lock unit 2, is not possible.

[0046] (2) Unlocking To unlock, first, following the usual procedure, each of the combination dials 30 is rotated so that the key numbers (dial numbers visible through the combination window 29) match the unlocking PIN. Once the unlocking PIN matches, the unlocking slider 32 is allowed to slide in, and when the push button 32a of the unlocking slider 32 is pressed, the key rod 32b, which is integrated with the push button 32a, also moves backward, causing the free step 32e to move above the lock pin 35. This allows the lock pin 35, which was being pushed in by the lock shift projection 32d, to 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, the entire lock unit 2 is moved backward, the latch rod 22, which is integrated with it, is separated from the fixing hook 11, and the lock space RS is opened. 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.

[0047] (3) Holding operation of helmets, etc. Subsequently, the helmet H is held in the now-open lock space RS. This is done, for example, by passing the ring h2 of the chin strap h1 attached to the helmet H through the tip of the latch rod 22, which has been moved away from the fixing hook 11 (see Figure 2). After performing this operation, the latch rod 22 is slid towards the fixing hook 11 to relock it.

[0048] (4) Relocking To relock, first, with the push button 32a of the unlock slider 32 pressed in, move the entire lock unit 2 forward (towards the fixed hook 11) so that the fixed hook 11 and the latch rod 22 come into contact, closing the lock space RS. Then, rotate each combination dial 30 to the 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).

[0049] <2. Security function> Next, the security function of the anti-theft locking device R of the present invention will be described. (1) Security function by fixed hooks In the anti-theft locking device R of this embodiment, the lock space RS, which is formed into a closed annular shape by the contact combination of the fixed hook 11 and the latch rod 22, is configured such that the fixed hook 11 occupies more than 70% of the enclosed area that forms the closed annular shape. In other words, the fixed hook 11, which is not a movable member, can be set into a robust form integral with the base body 1, and can be given sufficient strength to prevent damage by unscrupulous individuals.

[0050] (2) Safety function by latch rod Furthermore, the latch rod 22 is integrally formed with the unit casing 20, which also offers a high degree of design freedom in terms of strength, enabling a high-strength design, and allowing for a smaller sliding range of motion. Thus, despite being a movable component, it overcomes the inherent fragility. In addition, when the lock space RS is closed, the fixing hook 11 and the latch rod 22 are in contact in a semi-lap-fitting (lap-notch) manner, which also ensures that the closing action is firmly maintained.

[0051] (3) Clamp piece removal prevention function Furthermore, from the standpoint of theft prevention, it is necessary to prevent unscrupulous individuals from removing the anti-theft locking device R from the motorcycle M (handlebar B). For this reason, the visible front clamp bolt 5B at the bottom of the lock space RS is configured so that, when locked, a tool of common 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. Furthermore, regarding 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 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 unlocked 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 upper part of the rear clamp bolt 5B, thus preventing tool access in this case as well.

[0052] <3. Installation and Usage> (1) Installation work 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 attachment and usage modes will be described below. First, the anti-theft locking device R of the present invention has a small overall width and a slim configuration, 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).

[0053] 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 base body 1 and clamp piece 5 are used to sandwich the handlebar B, and the two are fastened together with clamp bolts 5B at two locations, front and rear. At this time, the front clamp bolt 5B is used to completely retract 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. In this state, the rear clamp bolt 5B is concealed as the rear bolt housing hole 12 is covered by the lock unit 2, making it inaccessible with a tool. Therefore, to access 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 access with a tool from above. Then, the rear clamp bolt 5B is fastened in this state. At this time, an adjustment sleeve 55 corresponding to the diameter of the handlebar B may be used as appropriate.

[0054] The fastening work using clamp bolts 5B can be done by temporarily fixing the anti-theft locking device R in an orientation that makes the work easier. However, in actual use, it is necessary to fix it 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 to select an orientation and position that suits the shape of the user's vehicle and fix it accordingly. Furthermore, 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 the interlocking recess 54, thereby ensuring a firm fixation.

[0055] (2) Use as a helmet holder Furthermore, to make the anti-theft locking device R function 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 is placed increases, 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. 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 extend sufficiently outward from the dial operation opening 28.

[0056] [Other uses] As described above, the anti-theft locking device R of the present invention has an optimal form for use as a helmet holder for a motorcycle M, but it can, of course, also be used as other anti-theft equipment. Specifically, for example, it can be attached to bicycle handlebars or frames as a holder for bicycle helmets, which have recently become strongly recommended. Furthermore, even if the mounting surface is not circular in cross-section but flat, it can be attached without using the clamp piece 5, allowing it to be mounted in a variety of locations. [Explanation of symbols]

[0057] R Anti-theft locking device 1. Base body 2 Lock Units 3. Lock mechanism 5 clamp pieces 10 Mounting base 11 Fixing hooks 11a Extension base 11b Relay section 11c Closure 11d Inner fitting end 12 bolt holes 13 Clamp recess 14 Interlocking protrusions 15 Rock Rail 16 Rail Post 16G regulated space 17 Lock groove 17a Partition projection 18 Slide Guide 20 Unit Casing 20a Casing piece 21 rivet pins 22 Latch Rod 22a External receiving recess 23 Restrictive protrusions 23a Regulatory Department 23b Bolt operation hole 24 guide slots 25 Stopper Block 26 Guide Ribs 27 Lock storage compartment 27a Bearing section 27b Dial retention space 28 Dial operation opening 29. Laminated windows 30 Adjustment Dial 30a Dial Clamp 30b Operating Ring 31 Click Springs 32 Unlocking Slider 32a Push button 32b Key Rod 32c Key protrusion 32d Lockshift protrusion 32e Free step 34 Set Springs 35 lock pins 35a Locking protrusion 35b Shift receiving section 36 Lockset Springs 5S clamp space 5B Clamp Bolt 51 Bolt receiving section 52 tapping holes 54 Recessed interlocking part 55 Adjustable Sleeves H Helmet h1 Chin strap h2 ring M Motorcycle B Handlebar SH Throttle Holder RS Rockspace T Thickness standard dimension T1 Operating opening thickness dimension T2 Thickness dimension of laminated window section

Claims

1. An anti-theft locking device that combines a fixed hook and a latch rod in a closed ring shape to form a locking space, and allows the locking space to be released by sliding the latch rod, This anti-theft locking device comprises a base body and a locking unit that is slidably mounted to the base body. The base body is integrally provided with the fixing hook, The lock unit is characterized in that the latch rod is integrally formed with 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 allowed to slide, and in this allowed state, the latch rod, which is integral 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 these clamp recess and 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 facing the base is formed to be narrower than the thickness reference dimension of the base, which is configured to slide freely with respect to the base body.

5. The unit casing that constitutes the outer shape of the lock unit houses an alignment dial on the inside, with dial operation openings on both sides, and an alignment window for visually viewing the unlocking PIN is opened at the top of the unit casing. The anti-theft locking device according to claim 4, characterized in that the thickness dimension of the operating part in the dial operating opening is formed to be smaller than the standard thickness dimension, and the thickness dimension of the laminated window in the laminated 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 base body is provided with a lock rail having at least two lock grooves, The locking unit is provided with a locking pin that elastically fits into the locking groove, and an unlocking slider that is allowed to slide when all the combination dials are set to the unlocking PIN. The anti-theft locking device according to claim 1 or 2, characterized in that when the unlocking slider is in the locked state, the lock shift projection of the unlocking slider contacts the lock pin, maintaining a forced engagement state in which the lock pin is seated in the lock groove, and when the unlocking state is unlocked, the lock pin faces the free step of the unlocking slider, 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, characterized in that, when the lock space is closed or fully open, the locking unit conceals the clamping bolt located on the opposite side of the lock space from the two clamping bolts, thereby preventing the operation of screwing into the clamping bolt.

10. The anti-theft locking device according to claim 9, 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 the clamp bolt, while allowing screwing into the clamp bolt from above when the locking unit is in an intermediate open position.

11. 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.

12. The anti-theft locking device according to claim 11, 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 interlocking state.

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