Retractable lacing

Abstract

The utility model relates to a retractable lacing. The retractable pet tether is provided with an integrated spring door control clamping mechanism which can be operated by one hand. The device includes a housing containing a spring-biased retractable lace reel and a handle having a swing door. The swing door includes a torsion spring mechanism and has a convex outer surface to reduce friction during attachment. More serving as a temporary anchor allows the pet opener to maintain control of its pet without hand. The door automatically opens and closes about the object when pressed against the object to secure the lace without manual operation of the gripping mechanism. The present application includes interlocking lips on the door and handle that create a smooth surface against hooking when closed. The locking mechanism allows the lace to be secured at a desired length. This design enables single-hand attachment to various objects, including fence posts, bars, chair legs and tables, allowing a pet owner to temporarily secure its pet while maintaining a reliable restraint. Various embodiments include variations in door placement and handle configuration.

Description

Technical Field

[0001] This application relates to retractable straps. Background Technology

[0002] Traditional retractable leashes require users to maintain a constant grip on the handle, limiting their ability to perform other tasks while keeping their pets leashed. Pet owners often need temporary ways to secure their leashes to objects such as fence posts, poles, or chair legs, but existing solutions lack integrated attachment mechanisms that enable hands-free operation.

[0003] Therefore, there is a need for a retractable leash that includes a secure and easy-to-use attachment mechanism, allowing pet owners to fasten the leash to various surfaces while ensuring their pets are reliably tethered. Utility Model Content

[0004] This application provides a clip-on retractable leash that integrates a spring-gated clamping mechanism into the leash handle. This feature allows the leash to be securely fastened to fences, poles, chairs, tables, and other objects, enabling hands-free operation while keeping the pet leashed.

[0005] This application combines the functionality of a standard retractable leash with an integrated spring-locked attachment mechanism, thereby improving usability and convenience. The attachment mechanism is spring-loaded and designed for one-handed operation, allowing pet owners to easily engage and disengage the leash as needed.

[0006] To address the aforementioned problems in the existing technology, this application provides a retractable tie, the retractable tie comprising:

[0007] - Housing, which houses a spring-biased reel for retracting the flexible lacing member;

[0008] - A handle, which is attached to the housing;

[0009] - The handle includes a gripping portion that bends away from the housing to form an open space;

[0010] - Spring door clamping mechanism, the spring door clamping mechanism comprising:

[0011] - Pivot door components;

[0012] - Torsion spring mechanism;

[0013] - At least one interlocking lip structure

[0014] The door automatically opens and closes when pressed against an object to secure the object within the handle.

[0015] The above-described solution in this application has the following advantages:

[0016] 1. Hands-free operation: Users can attach the strap to an object, allowing them to perform other tasks without holding the strap.

[0017] 2. Automatic clamping attachment: The spring-loaded gate mechanism allows the strap to be attached to an object without the need for manual operation.

[0018] 3. Versatile attachment: The clamping design allows for secure fastening to a variety of surfaces, including both round and straight objects.

[0019] 4. Compact and integrated design: The clamp is built directly into the retractable tethered handle, ensuring a seamless and ergonomic user experience.

[0020] 5. Safe and reliable: The spring-loaded door control mechanism prevents accidental detachment, keeping your pet safely tethered.

[0021] 6. Friction-reducing door design: The convex outer surface allows for smooth sliding onto and off objects, thus reducing resistance and ensuring easy operation.

[0022] 7. Retractable leash with locking mechanism: The leash can be locked at a fixed length to prevent accidental extension and improve control of the pet.

[0023] 8. Sturdy and durable door material: The door is not covered by soft-covered molding, which ensures better wear resistance and prevents compression under load. Attached Figure Description

[0024] Figure 1 A perspective view showing the left-facing fastening device of the spring door in its closed position is shown.

[0025] Figure 2 A close-up 3D view of a spring-loaded door in the open position is shown.

[0026] Figure 3 A right-facing side view of the tethering device with the spring door in its closed position is shown.

[0027] Figure 4 A right-facing side view of the tethering device with the spring door in the open position is shown.

[0028] Figure 5 A top cross-sectional view is shown of the fastening post in the handle opening of the spring-loaded door, where the fastening device and handle opening are located. Detailed Implementation

[0029] The tether housing is made of high-impact plastic and has an elliptical configuration, in which mating sidewalls are connected by peripheral walls. Inside the housing, a spring-biased reel holds the flexible tether member, allowing the tether to extend and automatically retract when tension is released.

[0030] The extendable mechanism includes a locking feature, allowing the user to secure the leash length in the desired position. This prevents accidental stretching and provides better control over the pet's movement.

[0031] Integrated spring-loaded gate clamping mechanism

[0032] The spring-loaded door clamping mechanism is directly integrated into the bottom section of the strap handle and serves as the primary attachment point. The door is pivotally attached to the handle at a reinforced hinge point, secured with metal pins or rivets to ensure smooth, durable pivoting movement. The door is located at the bottom of the handle to allow for attachment and disengagement while gripping the handle.

[0033] The preferred spring mechanism used is a torsion spring coiled around the hinge point. Other spring types can also serve this function. This coiled torsion spring is preferred because it provides rotational restoring force, thus ensuring that the door automatically returns to the closed position when no external force is applied.

[0034] Spring force and consistency

[0035] The torsion spring is designed to apply a force of approximately 2 to 5 Newtons, providing a consistent closing force while allowing for easy manual or automatic opening. Due to the linear relationship between the angle of rotation and the restoring force of the torsion spring, this force remains approximately constant, ensuring smooth and predictable door movement without excessive resistance.

[0036] Attachment and detachment processes

[0037] Attach the handle to the object

[0038] 1. Users align the spring-loaded door clamps with an anchoring object they wish to attach to, such as a fence post, pole, chair leg, or table leg. The door is designed to work with both round and straight objects.

[0039] 2. When the user presses the handle against an object, the spring force holding the door closed is overcome and the door opens. The convex outer edge of the door facilitates further automatic opening by smoothly sliding against an object, thereby reducing friction and resistance.

[0040] 3. Once an object passes through the open door, the torsion spring automatically closes the door, thus securely latching the handle onto the object.

[0041] 4. The nesting feature in the handle matches the lip on the corresponding end of the door and the handle, ensuring that the door seat is flush when closed, thereby preventing accidental snagging or accidental detachment.

[0042] Disconnect the handle from the object

[0043] 1. Users push or pull the door open with their fingers.

[0044] 2. The user then pushes the strap handle toward and past the object to which it is secured; the object can slide against the door, keeping the door open.

[0045] 3. As an object moves past the bottom end of the door, the pivot point, the torsion spring returns the door to its closed position—the retractable strap is now released from its temporary anchor.

[0046] This design allows for quick, one-handed attachment and disassembly, making it very convenient for users.

[0047] Detailed description of the attached figures

[0048] Figure 1 A retractable leash 12 is shown, with a spring-loaded door 112 attached to a spring-loaded hinge 132 in its closed position. When a pet attached to the device via the retractable leash 230 and clamp 240 is taken for a walk, the handle 110 is held by the user. The retractable leash 230 is wound around a leash module 220 (not shown) housed within the device. The leash can be locked in a selected extended position by pressing a locking button 260. When the unlock button 250 is pressed, the lock is released, and a spring mechanism in the leash module rewinds the leash 230 back into the module.

[0049] Figure 2 The diagram shows a door 112 in the open position, with a gap created at the bottom of a strap handle 110. When moved by spring action, the door 112 automatically closes, lips 212 and 210 contact, allowing a post, such as a chair leg or table leg, to pass through the gap and temporarily lock into the handle. A drooping lip 210 is provided at the bottom end of the strap handle 110. An overhanging lip 212 is provided at the distal end of the door 112. Lips 212 and 210 interlock to form a substantially smooth surface that does not snag on the anchor post. The proximal end of the door 112 is pivotally attached to a hinge 132, and the hinge 132 provides a spring mechanism that advances the distal end of the door 132 toward the bottom end of the handle 110.

[0050] Figure 3 and Figure 4 The side view stereoscopically shows the relationship with Figure 1 and Figure 2 Same characteristics.

[0051] In an alternative embodiment, the spring door 112 is mounted in the reverse position such that the hinge 132 is located at the end of the handle 110, and the door opens directly close to the body of the retractable strap 12.

[0052] In some alternative implementations, the spring door mechanism is located at the midpoint or near the top of the handle.

[0053] In another embodiment, the handle is ring-shaped and is attached to the body of the retractable strap at a single point, and the spring door mechanism is built into the ring handle without being connected to the strap housing.

[0054] Figure 5 A cross-section of the anchor post 372 within the handle area of ​​the retractable strap 12 is shown. Post 372 is an example of an object to which the retractable strap can be attached. Once the post has been inserted, the handle, which allows the door 112 to open and then close, can fit approximately a maximum size of a square with a side length of about 36 mm and a diagonal of 50 mm.

[0055] Secure the strap handle to the object as follows. Refer to [reference needed]. Figure 5 With door 112 in the closed position, the user pushes the outer edge of door 112 against anchor post 372. The force exerted by the user exceeds the force of the spring that keeps door 112 closed, and the door opens. Continuing to push the outer edge of door 112 against post 372 causes the rod to slide into the holding area of ​​the handle. As the user continues to push, the post moves past the end of the open door 112 and is biased by the force of the spring, automatically closing the door and locking the handle around the post. The user no longer needs to hold the leash to prevent the pet from escaping, as the leash is held by the anchor post within the closing handle.

Claims

1. A retractable strap, characterized in that, The retractable strap includes: - Housing, which houses a spring-biased reel for retracting the flexible lacing member; - A handle, which is attached to the housing; - The handle includes a gripping portion that bends away from the housing to form an open space; - Spring door clamping mechanism, the spring door clamping mechanism comprising: - Pivot door components; - Torsion spring mechanism; - At least one interlocking lip structure The door automatically opens and closes when pressed against an object to secure the object within the handle.

2. The retractable strap according to claim 1, characterized in that, The torsion spring mechanism provides a closing force between 2 and 5 Newtons.

3. The retractable strap according to claim 1, characterized in that, The door component includes: - A convex outer surface, which is used to reduce friction during attachment; - An extended lip, which interlocks with a drooping lip on the handle.

4. The retractable strap according to claim 1, characterized in that, The retractable strap also includes: - A locking mechanism for securing the strap length; - Unlock button, which is used to release the locking mechanism.

5. The retractable strap according to claim 1, characterized in that, The handle is configured to accommodate a square object with a side length of up to 36 mm and a diagonal of 50 mm.

6. The retractable strap according to claim 1, characterized in that, The spring door clamping mechanism is positioned at one of the following: -The bottom of the handle, -The midpoint of the handle, - Near the top of the handle.

7. The retractable strap according to claim 1, characterized in that, The handle forms a complete loop attached to the housing at a single point.

8. The retractable strap according to claim 1, characterized in that, The housing is made of high-impact plastic and includes: - Matching sidewalls; - Peripheral wall, the peripheral wall being connected to the side wall; - An inner cavity that accommodates the spring-biased reel.

9. The retractable strap according to claim 1, characterized in that, The spring door clamping mechanism includes a metal hinge pin that secures the door to the handle.

10. The retractable strap according to claim 1, characterized in that, The retractable strap also includes safety features to prevent the door from accidentally detaching under load.

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