Mechanical locking device for pocket knives and multitools

The integrated mechanical locking device secures the knife blade and components, ensuring authorized use and preventing unauthorized access and theft, addressing the need for secure transport and compliance with legal definitions.

DE202024002295U1Active Publication Date: 2025-06-12STADLER THOMAS
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Patent Information

Application Number
DE202024002295
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-06-12
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing knives lack a secure locking mechanism that prevents unauthorized use and theft, especially in compliance with evolving legal definitions of carrying weapons, and do not allow safe transport without additional containers.

Method used

A mechanical locking device integrated into the knife, which secures the blade and other components, requiring authorized use and can be locked to a stable object, preventing unauthorized access and theft.

Benefits of technology

The integrated locking mechanism ensures the knife cannot be used as a weapon within three seconds or three movements, enhancing security and compliance with legal definitions, while preventing loss or theft.

✦ Generated by Eureka AI based on patent content.

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Abstract

Mechanical locking device on the knife, in particular for knives which are intended to be available for use on the go in a wide variety of situations, essentially consisting of a knife handle which fixes the knife blade and is intended to put it into the state of use or into the storage or transport state by means of a folding, sliding, spinning or rotating movement, characterized in that tools such as blades or also saws, files, screwdrivers, eels, scissors can be locked with this mechanical locking device.
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Description

The inventionThe invention relates to a mechanical shut-off device integrated on knives or multitools with and / or without a lockable blade.In the following, all types of knives are always designated as knives, which can usually also be carried along in the pants pocket. Designs such as Swiss pocket knives, multitools, single-hand knives, fall knives, spring knives, butterfly knives, razors, tree knives, carpet knives, camping cutlery, survival knives, electrician knives, menssel knives, with blade or else other tools.Various suitable designs of separate commercially available key-coded or number-lock-coded locks, such as, for example, padlocks or suitcase locks with metal brackets or wire brackets, can be used. Or also a lock integrated in the knife housing.Prior ArtThere are already cases for knives which can be shut off for transport, but the advantage of a shut-off device directly on a pocket knife is that the knife can be shut off without a separate container such as box, suitcase, backpack... Transport containers such as planar hand bags, back bags, jacket or pant bags are usually not lockable.Advantage of the InventionThe eye mark is primarily directed at the blade of the knife. Other knife components, such as e.g. saw, file or screwdriver, can of course also be secured by means of a corresponding shut-off device. This component is then secured against unauthorized removal by the shut-off. The knife blade can be put into operating condition only by the authorized user when used as intended. Moreover, if secured with a padlock, the knife can be additionally secured to a button hole, belt strap or other suitable object with or without the aid of a chain against loss or unwanted waste.According to the latest German weapon law of October 2024, the term "weapons" has been extended by "weapons and knives".The guidance of a weapon in the sense of the weapon law is given when the actual force is exerted outside of the home, business rooms, the home fried home or a shooting site.A thumb rule indicates: a weapon is guiding who can put the weapon into its intended use state in less than three seconds and with less than three handles.Intended use in knives are cutting, lancing, raising, and action. These can be carried out with the knife closed not by more than three handles and only by more than 3 seconds of preparation.However, since the definition "guiding a knife" is not explicitly defined by the legislator and can also be changed at any time, this advantage should be applied only with caution. Moreover, the country-specific and regional laws must always be taken into account here.Finally, a closed knife also serves for safety. Since it cannot be used as a weapon against ownership or third party in the case of a misappropriation.Explanations on the SketchesFIG. 1 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. 5 Pivot point of the return spring detent No. 6 Bore for placing the striker. The hooked-in lock striker blocks the blade catch. Unlocking and folding out of the knife blade is thus not possible. No. 7 Locking point of the blade to the catch No. 8 Hoop lock / padlock / suitcase lock FIG. 1.1 shows knives viewed from above (top view) FIG. 1.2 shows knives viewed from the front (front view) FIG. 2 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. S pivot point of the return spring detent No. 6 bore for placing the striker. The hooked-in lock striker retains the knife blade in the folded-in state in the knife handle. The padlock encloses the knife handle. It is thus not possible to fold out the knife blade. No. 7 Locking point of the blade to the catch (optional) No. 8 Hoop lock / padlock / suitcase lock FIG. 3 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. 5 Pivot point of the return spring detent No. 6 Bore for placing the striker. The hooked-in lock striker blocks the blade shaft opening. It is thus not possible to fold out the knife blade. No. 7 Locking point of the blade to the catch (optional) No. 8 Hoop lock / padlock / suitcase lock FIG. 4 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. 5 Pivot point of the return spring detent No. 6 Bore for placing the striker. The hooked-in lock striker blocks the knife blade. It is thus not possible to fold out the knife blade. No. 7 Locking point of the blade to the catch (optional) No. 8 Hoop lock / padlock / suitcase lock FIG. 5 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. 5 Return spring detent pivot point No. 6 Detent The detent blocks the blade detent. Unlocking the knife blade is not possible. It is thus not possible to fold out the knife blade. No. 7 Locking point of the blade on the catch No. 8 Number lock integrated in the knife handle FIG. 5.1 shows knives viewed from above (top view) FIG. 5.2 shows knives viewed from the front (front view) FIG. 6 shows the knife in the unlocked state The locking latch No. 6 has released the knife locking, this can be actuated and the locking point No. 7 is released. The knife can be folded out. FIG. 7 shows the knives in the opened and locked state FIG. 8 No. 1 Knife blade in closed position No. 2 Knife blade in use position No. 3 Knife handle / frame / housing No. 4 Locking device for fixing the knife blade in closed or also open state. No. 5 Return spring detent pivot point No. 6 Detent The detent blocks the blade detent. Unlocking the knife blade is not possible. It is thus not possible to fold out the knife blade. No. 7 Locking point of the blade on the lock No. 8 Key lock integrated in the knife handle FIG. 8.1 shows knives viewed from above (top view) FIG. 8.2 shows knives viewed from the front (front view) FIG. 9 shows the knife in the unlocked state The locking latch No. 6 has released the knife locking, this can be actuated and the locking point No. 7 is released. The knife can be folded out. FIG. 10 shows the knives in the opened and locked state FIG. 11 No. 1 Knife blade in closed position No. 2 Locking cap The locking cap is rotated via the folded-in knife blade. No. 3 Knife handle / frame / housing No. 4 Detent for fixing the knife blade in the open state. No. 5 Pivot point of the locking with restoring spring No. 6 Padlock / padlock / suitcase lock A padlock prevents the blocking cap from turning away. It is thus not possible to fold out the knife blade. No. 7 Two rings for hooking the padlock. One of the two rings is fixed to the knife handle, the second ring is fixed to the blocking cap. FIG. 11.1 shows the knives viewed from above (top view) The blocking cap No. 2 prevents access to the knife blade lying underneath. FIG. 12 shows the padlock removed. The blocking cap can now be rotated in its longitudinal axis by 180° onto the underside of the knife. FIG. 12.1 shows the knife viewed from the front (front view). The cap still covers the knife blade here. FIG. 13 shows the blocking cap turned onto the underside of the knife, the knife can be folded out. FIG. 13.1 shows knives viewed from the front (front view). The cap on the underside of the knife. FIG. 14 No. 1 Knife blade in the closed position No. 2 Hoop lock / padlock / suitcase lock The suspended lock hoop prevents the two handle parts from being folded apart. Folding out the knife blade is thus not possible. No. 3 Knife handle / frame / housing No. 4 Two rings for mounting the padlock. FIG. 15 No. 1 Knife blade unfolded in the use position No. 3 Knife handle / frame / housing No. 4 Two rings for hooking in the padlock. FIG. 16 No. 1 Knife blade in the closed position No. 2 Hoop lock / padlock / suitcase lock The suspended lock hoop blocks the blade shaft opening Retraction of the knife blade is thus not possible. No. 3 Knife handle / frame / housing No. 4 Bore for mounting the padlock. FIG. 17 No. 1 Knife blade in the use position No. 3 Knife handle / frame / housing No. 4 Bore for mounting the padlock. FIG. 18 No. 1 Knife blade in the closed position No. 2 Hoop lock / padlock / suitcase lock The suspended lock hoop blocks the blade in the handle. It is thus not possible to extend the knife blade. No. 3 Knife handle / frame / housing No. 4 Bore for mounting the padlock. FIG. 19 No. 1 Knife blade in the use position No. 3 Knife handle / frame / housing No. 4 Bore for mounting the padlock.

Claims

Mechanical shut-off device on the knife, in particular for knives which are intended to be available for use in a wide variety of situations on the way as intended, essentially consisting of a knife handle which fixes the knife blade and is intended to put it into the use state or else into the storage or transport state by folding, sliding, centrifuging or rotational movement, characterized in that tools such as blades or else saw, file, screwdriver, aale, scissors can be closed off with this mechanical shut-off device.Shut-off bore (FIG. 1 No. 6) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 1 No. 8) blocks the tool lock (FIG. 1 No. 4) and unlocking and folding out of the tool (FIG. 1 No. 1) is not possible.Shut-off bore (FIG. 2 No. 6) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 2 No. 8) retains the tool (FIG. 2 No. 1) in the folded-in state in the knife handle and folding out of the tool is not possible.Shut-off bore (FIG. 3 No. 6) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 3 No. 8) blocks the tool (FIG. 3 No. 1) in the folded-in state the tool shaft opening and folding out of the tool is not possible.Shut-off bore (FIG. 4 No. 6) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 4 No. 8) blocks the tool (FIG. 4 No. 1) in the folded-in state in the knife handle and folding out of the tool is not possible.The locking bolt (FIG. 5 No. 6) on the knife according to claim 1, characterized in that a number lock (FIG. 5 No. 8) integrated in the knife handle blocks the tool locking (FIG. 5 No. 4) and unlocking and folding out of the tool (FIG. 5 No. 1) is not possible.The locking bolt (FIG. 8 No. 6) on the knife according to claim 1, characterized in that a key lock (FIG. 8 No. 8) integrated in the knife handle blocks the tool locking (FIG. 8 No. 4) and unlocking and folding out of the tool (FIG. 8 No. 1) is not possible.Shut-off rings (FIG. 11 No. 7) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 11 No. 6) locks a blocking cap which blocks the tool (FIG. 11 No. 1) in the folded-in state in the knife handle and it is not possible for the tool to be folded out.Shut-off rings (FIG. 14 No. 4) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 14 No. 2) prevents the two grip parts (FIG. 14 No. 3) from being deployed, whereby the tool (FIG. 14 No. 1) is locked in the knife grip in the retracted state and it is not possible for the tool to be deployed.Shut-off bore (FIG. 16 No. 4) on the knife according to claim 1, characterised in that a hooked hoop lock (FIG. 16 No. 2) blocks the tool shaft opening and thus blocks the tool (FIG. 16 No. 1) in the inserted state in the knife handle (FIG. 16 No. 3). It is not possible to move out the tool.Shut-off bore (Fig. 18 No. 4) on the knife according to claim 1, characterised in that a hooked hoop lock (Fig. 18 No. 2) blocks the tool in the knife handle (Fig. 18 No. 3) and thus it is not possible to extend the tool.

Citation Information

Patent Citations

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