cuff lock

Abstract

A shackle comprising a body and a collar lockable to the body. The collar comprises a metal tube having a cavity extending in the longitudinal direction of the tube. A reinforcing filler is located in the cavity. At least one collar end comprises a locking formation for locking engagement with a locking device of the body. The locking formation is formed on the outside of the tube without forming an opening to the cavity of the tube.

Description

Technical Field

[0001] The present invention relates to a clamp lock, particularly for two-wheeled vehicles, such as bicycles or motorcycles, the clamp lock comprising a lock body and a ring clamp, wherein the ring clamp is selectively movable into an open position or a closed position, and in the closed position the ring clamp is lockable onto the lock body. Background Technology

[0002] Such clamp locks are used, for example, to secure two-wheeled vehicles to prevent any unauthorized departure, as the clamp passes through the spokes of the two-wheeled vehicle. Alternatively or additionally, such clamp locks can be used to secure two-wheeled vehicles to fixed objects, such as lampposts. Typically, such clamp locks are used to secure objects to prevent unauthorized use or access, where the clamp is brought into the locked position and locked. However, an authorized user can selectively bring the clamp to the open position, in which the clamp is open relative to the lock body, or the clamp is completely released from the lock body. Such clamp locks with mechanical lock cylinders are known according to DE10026701A1. Such clamp locks with electrically driven locking devices are known from DE102018111302A1.

[0003] The hoop may be generally U-shaped, as commonly known from DE29903865U1, US5417092A, US5488845A, WO94 / 10414A1, DE102018116434A1 or EU design EM002113266-0002 (but not the tapered or pointed ring end shown in some of these documents). Alternatively, the clamp discussed herein may also have a linear shape, for example, for padlocks generally known from WO2006 / 109299A2 or EP2333204A1, or for brake disc locks generally known from DE102005043926A1, or for frame locks generally known from DE10358300A1 or DE102004052463A1, or for scaffold locks for scaffolding as generally known as WO 2015 / 185380A1. Furthermore, the clamp discussed herein may also consist of multiple parts, particularly having multiple components pivotally connected to each other, for example, folding locks generally known from EP 0638473B1, EP 0675995B1 or EP0689987B1.

[0004] Such a clamp should be designed to be as secure as possible against breakage, particularly against attacks by sawing (i.e., cutting through with a geometrically specified cutting edge) or clamping the clamp. In recent years, attacks caused by battery-operated cutting saws (also known as angle grinders or flex devices) have been increasing (i.e., cutting with geometrically unspecified cutting edges). Summary of the Invention

[0005] The purpose of this invention is to provide a clamp that can be as secure as possible to prevent breakage.

[0006] This objective is achieved by a clamp having the features of claim 1.

[0007] The clamp lock includes a lock body and a clamp. Specifically, the lock body includes at least one inlet opening on its outer side leading to an inlet channel. The lock body also includes a locking device. The clamp can selectively enter an open or closed position relative to the lock body. The clamp includes at least one clamp end that, in the closed position, protrudes through a corresponding inlet opening into a corresponding inlet channel of the lock body. In the closed position, the clamp can be locked to the lock body by the locking device. The clamp includes a metal tube having a cavity extending in the longitudinal direction of the tube. A reinforcing filler is located within the cavity, the reinforcing filler comprising granules embedded in an adhesive material. In the closed position, the reinforcing filler extends at least to the height of the corresponding inlet opening of the lock body. One or more clamp ends include at least one corresponding locking structure for locking engagement with the locking device of the lock body. The corresponding locking structure is formed on the outer side of the tube, without forming an opening to the cavity of the tube.

[0008] In other words, the clamp lock includes a clamp with one or more ends that can selectively engage in the lock body. In this closed position, the clamp can be locked by a locking device disposed within the lock body, thereby preventing unauthorized opening or complete detachment from the lock body. Thus, the clamp and lock body can form, for example, a closed loop. The clamp can be unlocked and subsequently opened or released from the lock body by authorized operation of the locking device, such as via a physical identification device or code.

[0009] The clamp includes a tube having a cavity extending generally in the longitudinal direction of the tube. In particular, the cavity may extend continuously along the entire length of the clamp; however, interruptions may also be provided therein, particularly in the central portion of the clamp.

[0010] Within the cavity of the clamp or tube, there is a reinforcing filler comprising: particles, i.e., particles of a plurality of first materials; and an adhesive, i.e., a second material that holds the particles in place. The reinforcing filler does not need to fill the entire cavity of the tube, but may recede relative to one or more ends of the tube and / or have individual gaps (however, these gaps are preferably smaller than the inner diameter of the tube). At least one end of the clamp includes at least one corresponding locking structure (e.g., a recess) configured to selectively engage with a portion or element of a locking device of a lock body to lock the clamp to the lock body.

[0011] The corresponding locking structure is formed on the outside of the tube of the clamp and may include, for example, a circular shape (e.g., a spherical portion) or an elongated shape (e.g., a transverse slit or web). The corresponding locking structure may include a locking recess, or a locking protrusion (e.g., a thickened portion), or a combination of a locking recess and a locking protrusion. The corresponding locking structure may extend only along a portion of the circumference of the tube or along the entire circumference of the tube (e.g., as an annular groove or an annular flange). The corresponding locking structure may be introduced into the tube by machining (e.g., by milling) or without machining (e.g., by stamping). However, the wall thickness of the tube and the corresponding locking structure (particularly, in the case of the locking recess, the depth of the tube and the corresponding locking structure) are matched such that the locking structure does not form an opening to the cavity of the tube, i.e., there is no passage to the interior of the tube; instead, the corresponding locking structure has a closed design. Thus, the tube is also circumferentially closed at the height of the corresponding locking structure.

[0012] This type of clamp lock is characterized by its high level of security against breakage relative to the force that can be applied to the clamp. The tube of the clamp is made of metal, such as steel, and thus exhibits the characteristic toughness of metallic materials. Therefore, the clamp has high tensile strength. This makes attacks more difficult, especially attacks such as forced separation or clamping. If an attempt is made to tear the ring clamp from the lock body using a separating tool acting parallel to the U-shaped leg, for example in the case of a U-shaped ring clamp, high tension is transmitted to the locking device that engages with the locking structure of the clamp in the lock body. However, this interface between the clamp and the lock body has high stability because the corresponding locking structure on the outside of the tube of the clamp is designed as a closed structure, i.e., in the case of the locking recess, it is designed as a pure recess (blind hole type) without forming an opening to the cavity of the tube (i.e., through hole type). Due to this uninterrupted design of the tube at the corresponding locking structure, in the case of an attempt to break the tube, in the area where particularly high tension is applied to the tube, weakening of the tube is prevented or at least minimized.

[0013] Inside the tube, a reinforcing filler containing granules provides an additional level of protection against sawing and grinding because the granules used to form them differ from the tube's metal, exhibiting greater brittleness but also higher hardness. This makes attacks by sawing or grinding, such as those performed by a cutting grinder, particularly difficult. As a result of the reinforcing filler, this additional protection against sawing and grinding occurs at least in the portion of the clamp exposed in the closed position, i.e., without extending into the lock body. That is, in the closed position of the clamp, the reinforcing filler extending from the exposed portion of the clamp extends at least to the height of one or more inlet openings in the lock body. The tube closure design of the clamp in the locking structure region, as described herein, offers further advantages. During the manufacturing process of the clamp, when the reinforcing filler is filled into the tube cavity, the reinforcing filler cannot actually escape unintentionally from the side of the tube through the openings, whereas unintentional escape of the aforementioned reinforcing filler would occur if the one or more locking structures were formed as one or more channels between the outer side of the tube and the cavity.

[0014] In some embodiments, the reinforcing filler in the tube cavity may extend from the exposed portion of the clamp in the closed position to at least the height of one locking structure of the clamp or tube. This may contribute to greater stability of the clamp. In particular, the reinforcing filler may also extend beyond the corresponding locking structure. However, the reinforcing filler need not extend to the corresponding end of the clamp in the tube, such as the end flush with the tube end. This is because within the lock body, there is no need to ensure protection against sawing and grinding through the reinforcing filler.

[0015] If the lock body includes several inlet openings for the clamp, in some embodiments, when the clamp is in the closed position, the reinforcing filler in the tube cavity can extend continuously between the inlet openings of the lock body. Thus, complete protection against sawing and grinding is achieved due to the reinforcing filler.

[0016] In some embodiments, the corresponding clamp end with the locking structure can be formed at the height of the locking structure, without any additional reinforcing elements in the tube cavity, i.e., without inserts, etc. Thus, the manufacturing of the clamp is simplified. Since the tube has high tensile stability due to the closed design of one or more locking structures, such reinforcing elements are unnecessary. However, a cap can be provided at the corresponding clamp end; the cap does not perform a reinforcing function but rather serves, for example, to prevent dirt from seeping into the tube cavity, eliminate the risk of injury at the edge of the tube end, or serve a decorative function. However, in alternative embodiments, such additional reinforcing elements can be arranged in the tube cavity at the height of the corresponding locking structure.

[0017] In some embodiments, the clamped tube can be formed from hardened steel or self-hardening steel. As a result, exceptionally high hardness and strength are achieved.

[0018] In some embodiments, the tube of the hoop may have a circular, elliptical, or polygonal cross-section, particularly a square, hexagonal, or elongated rectangular cross-section.

[0019] As described above, the wall thickness of the clamped tube is chosen such that the corresponding locking structure does not form any opening through the tube's cavity. However, the tube's cavity should have a certain diameter (net width) such that the reinforcing filler comprises a sufficient number of particles and a sufficient degree of granular particle coverage. For this purpose, in some embodiments, the wall thickness of the clamped tube is set to be at least one-quarter of the tube's outer diameter, particularly at least one-third of the tube's outer diameter. These specifications refer to the minimum outer diameter of the tube in the case of a non-circular cross-section, for example, the edge length of the square in the case of a square cross-section (rather than, for example, the diagonal). Therefore, in some embodiments, the value of the tube's inner diameter may be at most half or at most one-third of the tube's outer diameter.

[0020] In some embodiments, the lumen of the tube may extend to at least one ring end of the clamp. This simplifies tube manufacturing and facilitates the filling of reinforcing filler into the lumen of the tube. Optionally or additionally, the lumen of the tube may extend along the entire length of the clamp.

[0021] In some embodiments, the clamped tube may have a constant outer diameter and / or a constant wall thickness and / or a constant inner diameter along the entire length of the clamp. As a result, manufacturing is simplified because, for example, annular tubes can be used as semi-finished products, and only one or more locking structures need to be joined. Additionally, expansion of the tube diameter that could lead to tube weakening is avoided. Furthermore, shrinkage of the tube lumen, which would make it difficult to insert reinforcing fillers, is avoided.

[0022] In some embodiments, the outer diameter of the clamped tube may be in the range of 12 mm to 18 mm (e.g., about 16 mm) in the case of a circular cross-section, or in the case of a square cross-section, the outer diameter of the clamped tube may be in the range of 10 mm to 16 mm (e.g., about 13 mm). However, other outer diameters and geometries are also possible.

[0023] In some embodiments, the granular material used to reinforce the filler may include hard metal particles (e.g., tungsten carbide, titanium carbide, or titanium nitride) and / or ceramic particles (e.g., alumina or silicon nitride). This provides a high level of protection against sawing and grinding.

[0024] In some embodiments, the granules may be formed non-uniformly and / or have sharp edges. For example, the granules may be fragment-shaped. The granules may be arranged and oriented in a co-fluid (i.e., non-systematically) manner within the reinforcing filler. In particular, the granules may be sized and formed such that multiple overlapping granules are arranged substantially continuously along all possible viewing axes within the lumen of the tube. Due to one or more of these features, particularly effective protection against sawing and grinding is achieved, especially against attacks by abrasive cutters.

[0025] In some embodiments, the particle size of the granules can be in the range of 0.5 mm to 5 mm, particularly in the range of 1.5 mm to 2.5 mm, and this value is preferably selected according to the inner diameter of the clamp.

[0026] In some implementations, the inner diameter of the tube can be 2-3 times larger than the particle size of the granules. This allows for a degree of coverage of the granules, ensuring a high level of protection against sawing and grinding without making individual particles too small relative to the net width of the tube, allowing the saw blade to pass through due to lateral deflection.

[0027] In some embodiments, the bonding material for the reinforcing filler may include solder, particularly metallic solder. As a result, in the standby state of the hoop, the granular form of the reinforcing filler (specifically, multiple particles forming granules and embedded in the solder) can be effectively fixed. In particular, material bonds (at the atomic or molecular level) can be formed. However, due to a certain degree of ductility (compared to, for example, adhesives), solder simplifies the manufacture of the U-shaped hoop, for example, in its formation. Furthermore, in the case of attack by an abrasive cutter, the metallic solder can easily dissipate the heat generated throughout the hoop (particularly the metal tube), thereby preventing the solder from melting due to heat dissipation and thus maintaining the stable fixation of the granular form of the reinforcing filler. In particular, metallic-bonded soft solder, hard solder, or pure metals (e.g., copper, aluminum, or tin) can be used as the solder.

[0028] In some embodiments, the inner boundary surface of the tube lumen, at least in the region of the reinforcing filler, may have a roughened or drawn surface. A roughened or drawn surface has the advantage of increasing the total surface area, thereby allowing the reinforcing filler to bond better with the tube.

[0029] In some embodiments, the locking device of the lock body may include at least one movable latch, wherein the clamp in the closed position can be locked onto the lock body by moving the corresponding latch to the locked position, in which the latch engages with the corresponding locking structure of the tube.

[0030] The locking device can be constructed purely mechanically, for example, with a key-operated lock cylinder. In some embodiments, the locking device can be configured electromechanically, for example by an electronic lock cylinder, electric motor, or electromagnet that drives one or more latches.

[0031] In some embodiments, the hoop may be configured as a U-shaped hoop, wherein the tube of the hoop is substantially U-shaped. Such a U-shaped hoop can have various shapes, as known from the literature mentioned in the introduction. For example, such a U-shaped hoop may have two legs, particularly which can be connected to each other via a connecting portion. A rounded transition may be provided between the two legs of the U-shape; however, an angular transition is also generally possible. The two legs of the U-shape may be parallel to each other or oriented at an acute angle. The two legs of the U-shape may form two hoop ends, wherein the two hoop ends are preferably oriented parallel to each other so that the two hoop ends can be inserted into the corresponding access channels of the lock body. If only one of the two hoop ends includes one or more locking structures, the other hoop end may, for example, include a hook-in portion for hooking the U-shaped hoop to the lock body, as known from the literature mentioned in the introduction (e.g., WO94 / 10414A1).

[0032] In some embodiments, the lock body of the clamp may have an elongated shape, such as a circular, elliptical, or rectangular cross-section. In particular, the elongated shape may be oriented perpendicular to the longitudinal axis of the U-shaped clamp.

[0033] As an alternative to the U-shape, the clamp and tubes can be configured to be at least generally linear, as known from the literature mentioned in the introduction. In some embodiments, a locking structure can be provided at one end of such a linear clamp, and, for example, a thickened portion can be provided at the other end to restrict the clamp's mobility. Additionally, the clamp can be composed of several parts, as known from the literature mentioned in the introduction, in which a corresponding number of tubes with reinforcing padding can be provided, for example in the case of a folding lock. Curved clamps are also possible, such as the C-shaped swivel clamps of padlocks or two-wheeled vehicle frame locks. In some embodiments, one end of the clamp can be permanently fixed to the lock body (specifically, rotatably or pivotally fixed to the lock body).

[0034] In some embodiments, at least one locking structure of the hoop or tube may be formed by a locking recess that is closed as described above.

[0035] The present invention also generally relates to a clamp lock, particularly a clamp lock for two-wheeled vehicles, having a lock body and a clamp, wherein the clamp is selectively movable into an open or closed position, wherein in the open position the clamp is open or disengaged from the lock body, and in the closed position the clamp is lockable onto the lock body, wherein the lock body includes a locking device for locking the clamp, wherein the clamp includes a tube formed of metal and having a cavity extending in the longitudinal direction of the tube, wherein a reinforcing filler is disposed in the cavity, wherein the reinforcing filler includes granules embedded in an adhesive material, wherein at least one end of the clamp includes at least one locking structure for engaging the locking device, wherein the locking structure is formed on the outside of the tube without forming an opening to the cavity of the tube.

[0036] High protection against breakage is achieved by using a tube made of metal and a ferrule containing granules (high tensile strength of the metal tube; a closed locking structure that does not weaken the tube due to the radial through-hole locking opening; and protection against sawing and grinding due to the reinforced filler).

[0037] The aforementioned features and embodiments related to the clamp lock can also be used in this clamp lock. Specifically, in the closed position of the clamp, the reinforcing filler may extend at least to the height of the lead-in opening of the lock body, at which the clamp end engages with the lock body. The locking device of the lock body may include at least one movable latch, wherein in the closed position, the clamp can be locked onto the lock body by moving the corresponding latch to the locked position, in which the latch engages with the associated locking structure of the tube. Specifically, the locking structure of the tube may include a locking recess.

[0038] The hoop may have a linear or curved shape. In some embodiments, the hoop may have two ends, with at least one locking structure provided at both ends, or at least one locking structure provided at only one end, while the other end is permanently supported to the lock body (specifically, rotatably or pivotally supported to the lock body, for example, depending on the type of padlock).

[0039] The present invention also relates to a method for manufacturing a hoop for a lock, particularly a hoop according to one of the above embodiments, wherein the method comprises at least the following steps, preferably in the order described:

[0040] A metal tube is provided, the metal tube including a cavity extending in the longitudinal direction of the tube;

[0041] At least at one end of the tube, at least one locking structure is formed on the outside of the tube, without forming an opening to the cavity of the tube;

[0042] The cavity is filled with a reinforced filler comprising a mixture of loosely granular material and a binding material;

[0043] The adhesive material is heated and then cooled to first melt it and then solidify it, thereby embedding the granules firmly into the adhesive material.

[0044] The reinforcing filler, loosely packed into the cavity, can be a homogeneous mixture of granules and binder material. For this purpose, the binder material can be in the form of granules, particularly spherical particles.

[0045] The present invention also relates to a method for manufacturing a hoop for use in a lock, particularly a hoop according to one of the above embodiments, wherein the method comprises at least the following steps, preferably in the order described:

[0046] A metal tube is provided, the metal tube including a cavity extending in the longitudinal direction of the tube;

[0047] At least at one end of the tube, at least one locking structure is formed on the outside of the tube, without forming an opening to the cavity of the tube;

[0048] Fill the cavity with solid but loosely packed reinforcing granules;

[0049] The cavity is filled with heated adhesive material (especially molten solder) in liquid form;

[0050] The adhesive material is then cooled to cure it, thereby permanently embedding the reinforcing particles into the adhesive material.

[0051] The present invention also relates to a method for manufacturing a hoop for use in a lock, particularly a hoop according to one of the above embodiments, wherein the method comprises at least the following steps, preferably in the order described:

[0052] A metal tube is provided, the metal tube including a cavity extending in the longitudinal direction of the tube;

[0053] At least at one end of the tube, at least one locking structure is formed on the outside of the tube, without forming an opening to the cavity of the tube;

[0054] The cavity is filled with solid but loosely packed reinforcing granules.

[0055] A blocker (tight or with a channel) comprising an adhesive material (particularly a metal solder) is applied to at least one end of the tube to close the cavity at that end.

[0056] The heating tube heats the blocker of the adhesive material, causing the adhesive material to melt and flow into the reinforcing granules inside the tube cavity;

[0057] The cooling tube then cools and thus cools the adhesive material to cure it, thereby permanently embedding the reinforcing particles into the adhesive material.

[0058] Therefore, the hoop can be manufactured in a simple and cost-effective manner. The features and embodiments described in conjunction with the hoop lock according to the invention can also be incorporated into the manufacturing process. For example, the reinforcing granules may further comprise a plurality of particles with high hardness, and in particular, the bonding material may comprise solder.

[0059] After the bonding material is melted and cured, it can be in any shape or structure to hold the granules in place. In particular, the bonding material can form a material bond with the granules and the tube, thus securing the entire reinforcing filler to the interior of the tube.

[0060] The cavity can be filled from at least one end of the tube, especially in the case of a U-shape, from both ends.

[0061] In some embodiments, the heating and subsequent cooling of the bonding material can be performed to simultaneously harden the metal of the tube. Suitable heating and quenching temperatures and durations can be used for this purpose.

[0062] In the case of a U-lock, the method may also include bending the tube substantially into a U-shape. The bending step can be performed before filling with the reinforcing filler. A reverse sequence is also possible, in which case, in particular, the adhesive material used here can be brought to a high-viscosity state by appropriate heating.

[0063] After the bonding material is heated and cooled, the hoop can be adjusted (bent or straightened) and / or finished (e.g., coated or painted). Attached Figure Description

[0064] The invention will now be explained by way of example only with reference to the accompanying drawings.

[0065] Figure 1 A schematic cross-sectional view of the clamp is shown.

[0066] Figure 2 It shows crossing according to Figure 1 The U-shaped hoop leg of the hoop lock is shown in a sectional view taken along plane II-II. Detailed Implementation

[0067] Figure 1 The illustrated lock includes an elongated lock body 11 and a clamp, which in the illustrated embodiment is formed as a U-shaped clamp 31. The lock body 11 includes two access openings 13 on its outer side, leading to two access channels 15 on the inner side of the lock body 11. A locking device 17 is located within the lock body 11. In the illustrated embodiment, the locking device 17 includes a lock cylinder 19 and two latches 21, which can be selectively moved through the lock cylinder 19 to… Figure 1 The lock position is shown.

[0068] The U-shaped hoop 31 includes two hoop ends 33, in Figure 1 The U-shaped clamp 31 is shown in its closed position, with the two clamp ends 33 protruding through the introduction opening 13 of the lock body 11 into the introduction channel 15 of the lock body 11. The U-shaped clamp 31 comprises a generally U-shaped tube 35 made of hardened steel. In the exemplary embodiment shown here, the tube 35 has a circular cross-section and is formed as a cylinder and hollow. Therefore, the tube 35 includes a continuous cavity 37 extending along its entire longitudinal length. The tube 35 includes a substantially constant outer diameter and a substantially constant wall thickness along its entire longitudinal length. The wall thickness of the tube 35 is approximately one-quarter of the outer diameter of the tube 35, such as... Figure 2 As shown.

[0069] The cavity 37 of the tube 35 contains a reinforcing filler 51, which includes granular material 53 embedded in a bonding material 55. The granular material 53 includes multiple non-uniformly shaped particles, particularly particles with a hardness higher than that of the tube 35, such as particles of hard metal or ceramic. The bonding material 55 includes solder, such as metallic solder.

[0070] The U-shaped clamp 31 includes a corresponding locking structure at each of its two clamp ends 33, which takes the form of a locking recess 39 formed on the outside of the tube 35. In the illustrated embodiment, the reinforcing filler 51 extends approximately to the height of the locking recess 39. The locking recess 39 is formed as a closed recess, i.e., the locking recess does not form a through-hole to the cavity 37 of the tube 35.

[0071] In the unlocked position (not shown) of the latch 21, the U-shaped clamp 31 can be removed from the lock body 11 (open position). Conversely, if the U-shaped clamp 31 is in the closed position and the latch 21 of the locking device 17 is in the... Figure 1 When the corresponding locking position is shown, the U-shaped clamp 31 is locked to the lock body 11. For this purpose, the latch 21 engages in the corresponding locking recess 39 of the U-shaped clamp 31 or the tube 35, and thus locks the U-shaped clamp 31 to prevent it from being removed from the lock body 11.

[0072] The illustrated clamp is characterized by its high level of security against breakage. Because the tube 35 of the U-shaped clamp 31 is made of metal, the U-shaped clamp 31 possesses high tensile strength. In the illustrated U-shaped clamp 31, since the locking recess 39 does not form a through-hole opening but is entirely formed within the wall of the tube 35, this tensile strength is not significantly weakened by the locking recess 39 of the tube 35. Simultaneously, the reinforcing filler 51 in the cavity 37 of the tube 35 ensures a high degree of protection against sawing and grinding due to the granular material 53 contained therein.

[0073] In the illustrated embodiment, it should be noted that the locking recess 39 may also be formed as an annular groove. Instead of the locking recess 39, a locking protrusion (e.g., a web) or a combination of the locking recess 39 and the locking protrusion may also be provided. The locking protrusion may be formed, for example, by stamping. When the locking protrusion is applied by stamping, the tube 35 (e.g., wall thickness) and the stamping process (e.g., tool, insertion depth, direction, force) are matched such that the locking protrusion in its vicinity does not form any opening to the cavity 37 of the tube 35.

[0074] Instead of the U-shaped hoop 31, different curved or straight hoops can be provided, and / or the hoop can be configured in several parts, as is generally known from the literature mentioned in the introduction. In such an embodiment, the geometry of the hoop end 33, the locking structure or locking recess 39, and the latch 21 interacting therewith can be similar to that according to Figure 1 Region A is formed.

[0075] Explanation of reference numerals in the attached figures

[0076] 11 Lock body

[0077] 13. Introduce an opening

[0078] 15. Introduction Channel

[0079] 17 Locking device

[0080] 19 Lock Cylinder

[0081] 21. Latch

[0082] 31 U-shaped hoop

[0083] 33 hoop end

[0084] 35 tubes

[0085] 37 cavities

[0086] 39 Locking recess

[0087] 51 Reinforcing Filler

[0088] 53. Granular matter

[0089] 55 Adhesive materials

Claims

1. A clamp lock having a lock body (11) and a clamp (31). in, The lock body (11) includes at least one inlet opening (13) leading to an inlet channel (15), and the lock body (11) also includes a locking device (17). The clamp (31) is selectively movable into an open or closed position relative to the lock body (11). The clamp (31) includes at least one clamp end (33). In the closed position, the at least one clamp end (33) protrudes through the inlet opening (13) into the inlet channel (15) of the lock body (11). In the closed position, the clamp (31) is lockable to the lock body (11) by the locking device (17). The clamp (31) includes a tube (35) formed of metal and having a cavity (37) extending in the longitudinal direction of the tube (35), wherein a reinforcing filler (51) is disposed in the cavity (37), wherein the reinforcing filler (51) includes granules (53) embedded in a bonding material (55). In the closed position of the clamp (31), the reinforcing filler (51) extends at least to the height of the inlet opening (13) of the lock body (11). The at least one clamp end (33) includes at least one locking structure (39) for locking engagement with the locking device (17), wherein the locking structure is in the form of a locking recess (39) extending to the outside of the wall portion of the tube (35), not forming an opening to the cavity (37) of the tube (35), and not protruding into the cavity (37); the wall portion circumferentially surrounds the cavity (37).

2. The clamp lock according to claim 1, wherein, The reinforcing filler (51) extends from the center portion of the hoop (31) to at least the height of the at least one locking structure (39).

3. The clamp lock according to claim 1, wherein, The at least one clamp end (33) at the height of the locking structure (39) does not have an additional reinforcing element in the cavity (37) of the tube (35).

4. The clamp lock according to claim 1, wherein, The tube (35) of the hoop (31) is formed of hardened steel or self-hardening steel.

5. The clamp lock according to claim 1, wherein, The tube (35) of the hoop (31) has a circular cross-section, an elliptical cross-section, or a polygonal cross-section.

6. The clamp lock according to claim 1, wherein, The wall thickness of the tube (35) of the hoop (31) is at least one-quarter of the outer diameter of the tube (35).

7. The clamp lock according to claim 1, wherein, The cavity (37) of the tube (35) extends to the at least one end (33) of the clamp (31).

8. The clamp lock according to claim 1, wherein, The cavity (37) of the tube (35) extends over the entire length of the clamp (31).

9. The clamp lock according to claim 1, wherein, The tube (35) of the hoop (31) has at least one of the following along its entire length: constant outer diameter, or Constant wall thickness, or Constant inner diameter.

10. The clamp lock according to claim 1, wherein, The granular material (53) of the reinforcing filler (51) includes at least one of hard metal particles or ceramic particles, wherein the particles have an irregular shape.

11. The clamp lock according to claim 1, wherein, The particle size of the granular material (53) of the reinforcing filler (51) is in the range of 0.5 mm to 5 mm.

12. The clamp lock according to claim 1, wherein, The inner diameter of the tube (35) is 2-3 times larger than the particle size of the granules (53).

13. The clamp lock according to claim 1, wherein, The bonding material (55) includes solder.

14. The clamp lock according to claim 1, wherein, The boundary surface of the cavity (37) of the tube (35) has a roughened or drawn surface at least in the region of the reinforcing filler (51).

15. The clamp lock according to claim 1, wherein, The locking device (17) includes at least one movable latch (21), wherein, in the locked position, the clamp (31) is lockable at the lock body (11), wherein the at least one latch (21) moves to the locked position, wherein, in the locked position, the at least one latch (21) engages with at least one locking structure (39) of the clamp (31).

16. The clamp lock according to claim 1, wherein, The hoop (31) is formed as a U-shaped hoop (31), wherein the tube (35) is approximately U-shaped.

17. A method for manufacturing the clamp according to claim 1, comprising the following steps: A tube (35) is provided, the tube (35) being formed of metal and having a cavity (37) extending in the longitudinal direction of the tube (35). At least one locking structure (39) is formed on the outside of the tube (35) at one end of the tube (35) without forming an opening to the cavity (37) of the tube (35); The cavity (37) is filled with a reinforcing filler (51), the cavity (37) comprising a mixture of loosely granular material (53) and a binding material (55); The adhesive material (55) is heated and then cooled to initially liquefy and then solidify the adhesive material (55), so that the granules (53) are fixedly embedded in the adhesive material (55).

18. A method for manufacturing the clamp according to claim 1, comprising the following steps: A tube (35) is provided, the tube (35) being formed of metal and having a cavity (37) extending in the longitudinal direction of the tube (35). At least one locking structure (39) is formed on the outside of the tube (35) at one end of the tube (35) without forming an opening to the cavity (37) of the tube (35); The reinforcing granules (53) are filled into the cavity (37) in a solid but loose form; The heated adhesive material (55) is filled into the cavity (37) in liquid form; The adhesive material (55) is then cooled to solidify it, so that the reinforcing particles (53) are fixedly embedded in the adhesive material (55).

19. A method for manufacturing the clamp according to claim 1, comprising the following steps: A tube (35) is provided, the tube (35) being formed of metal and having a cavity (37) extending in the longitudinal direction of the tube (35). At least one locking structure (39) is formed on the outside of the tube (35) at one end of the tube (35) without forming an opening to the cavity (37) of the tube (35); The reinforcing granules (53) are filled into the cavity (37) in a solid but loose form; A blocker comprising an adhesive material (55) is applied to at least one end of the tube (35) to close the cavity (37) at the at least one end. Heating the tube (35) thereby heating the blocker of the adhesive material (55) causes the adhesive material (55) to melt and flow into the reinforcing granules (53); The tube (35) is then cooled, thereby cooling the adhesive material (55) to cure the adhesive material (55) and thus fix the reinforcing particles (53) into the adhesive material (55).

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