Electronic safety device for lead line for pets

The electronic pet leash uses a control board to manage leash length and speed, automatically locking and alerting the user to maintain a safe distance, addressing inconsistent locking in conventional leashes.

WO2025150674A1PCT designated stage expired Publication Date: 2025-07-17SHIN DONG YEUL
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Patent Information

Application Number
PCT/KR2024/016825
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-09
Filing Date
2024-10-30
Publication Date
2025-07-17

AI Technical Summary

Technical Problem

Conventional pet leashes with automatic locking mechanisms fail to consistently prevent pets from straying due to varying shock levels from sudden movements, leading to reduced accident prevention efficacy.

Method used

An electronic pet leash with a control board that calculates and compares leash withdrawal length and speed, using sensors and a motor unit to automatically lock the reel when necessary, accompanied by alerts for user notification.

Benefits of technology

Effectively maintains a safe distance from pets by automatically locking the leash during sudden movements and providing user notifications, enhancing safety by preventing accidents.

✦ Generated by Eureka AI based on patent content.

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    Figure KR2024016825_17072025_PF_FP_ABST
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Abstract

The present invention discloses an electronic safety device for a lead line for pets, the safety device comprising: a case unit (110) including a case (112) having a handle (111), a rope hole (113) penetrating the front end of the case (112) to guide a lead line (100) in being pulled out or retracted, a reel (114) around which the lead line (100) is wound, a torsion spring (115) coupled to the reel (114) to elastically retract the lead line (100), and a locking module for restraining the rotation of the reel (114); a switch (120), provided on the side of the case (112), for setting the length by which the lead line (100) is to be pulled out or retracted; a sensor (130) for sensing the reel (115) rotating or the lead line (100) being pulled out or retracted; a motor unit (140) for pressing on or releasing the locking module so as to restrain the rotation of the reel (114); and a control board (150) for calculating the length pulled out or retracted on the basis of the rotational speed or degree of rotation or the pulling or retraction speed, and by comparing the length pulled out or retracted with the set length for same, controlling the motor unit (140) in accordance with the set length to be pulled out or retracted to restrain the rotation of the reel (114) or control the motor unit (140) on the basis of speed and lock the rotation of the reel (114).
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Description

Electronic pet leash safety device

[0001] The present invention relates to an electronic pet leash safety device that allows the leash length to be easily set and the pet's unexpected behavior to be controlled.

[0002] As you know, the number of households with pets is increasing, and as a result, there are many cases of taking pets out. At these times, a leash that can be worn around the pet's neck and the owner can hold the leash to limit the pet's range of movement.

[0003] Meanwhile, as illustrated in Fig. 1, a conventional general pet traction device (10) automatically pulls out a lead (30) wound on a reel (20) according to the pet's activities through a spiral spring method, and restricts the pulling out of the lead through a button-type locking device (40).

[0004] In the case of this type of spiral spring method, the user must observe carefully from time to time, and the locking device (40) is controlled by pressing the button of the locking device (40) to brake the leash (30) connected to the pet.

[0005] However, when the user is not talking to others or watching the pet's movements, there are cases where the user is unaware that the pet may move far away, and the pet may stray beyond the user's protection range and bite a nearby person or cause a traffic accident.

[0006] Accordingly, to solve this problem, automatic locking technology has been disclosed, but it protects the pet by automatically locking the leash when the pet suddenly runs away and the leash is suddenly pulled out. However, since the amount of the pulling shock varies depending on the type of pet and the situation, there are frequent cases where stable locking does not occur, and there is a problem that the accident prevention effect is reduced.

[0007] The technical problem to be achieved by the present invention is to provide an electronic pet leash safety device that can easily set the leash extension length and control the pet's unexpected behavior.

[0008] In order to achieve the above-described object, an embodiment of the present invention comprises a case comprising a case having a handle formed at a rear end, a rope hole formed through a front end of the case to guide a pet leash to be drawn out or withdrawn, a reel on which the leash is wound, a torsion spring coupled to the reel to elastically withdraw the leash, and a locking module for controlling rotation of the reel; a switch formed on a side of the case to set a pull-out length of the leash; a sensor for detecting rotation of the reel or withdrawal of the leash; a motor unit for pressing or releasing the locking module so that the locking module controls rotation of the reel; The present invention provides an electronic pet leash safety device, including a control board that calculates the withdrawal length from the rotation speed and rotation amount or withdrawal speed detected by the sensor, compares the withdrawal length with the withdrawal set length, and controls the motor unit according to the withdrawal set length to control the rotation of the reel, or controls the motor unit according to the speed to lock the rotation of the reel.

[0009] Here, the locking module may be configured with a rotating plate coupled to both sides of the reel and having hooks protruding from the outer surface at regular intervals, a fastening plate coupled to the case through a hinge axis to rotate hingedly and having a hook formed thereon that is fastened to the hooks, and a return spring that contacts the upper end of the fastening plate and elastically pushes the upper end of the fastening plate so that the hook is released from the hooks.

[0010]

[0011] In addition, the switch is configured with a slide bar that sets the pull-out setting length to free, 3 m, 2 m, and 1 m, respectively, and a slide switch that generates a contact signal according to the elevation of the slide bar, so that an electric signal by the slide switch can be transmitted to the control board.

[0012]

[0013] In addition, the sensor can detect the pull-out length by detecting the rotation of the roller according to the pull-out of the lead line, including a roller placed in the rope hole.

[0014]

[0015] In addition, the motor part is composed of an oval cam that contacts the lower rear surface of the fastening plate, a motor that rotates the oval cam, a battery that supplies power to the motor, and a battery holder that fixes the battery, and the hook can be fastened to or released from the catch by contacting or releasing the fastening plate according to the rotation of the oval cam.

[0016]

[0017] Additionally, the control board can control the motor unit to lock the rotation of the reel when the withdrawal speed of the lead line exceeds a preset reference speed.

[0018]

[0019] In addition, an LED and a speaker buzzer are formed in the case, a vibration motor is formed in the handle, and the control board can set the light emission cycle of the LED, the sound effect by the speaker buzzer, and the vibration cycle of the vibration motor differently for each step of the pull-out length.

[0020] According to the present invention, when a pet dog suddenly runs out due to an impulsive action, the device detects the rapid withdrawal of the leash and automatically locks the leash, thereby preventing safety accidents caused by the pet in advance, detects the amount of leash withdrawal and notifies the user of the amount of leash withdrawal through text, sound, and vibration, thereby allowing the user to determine the distance from the pet without having to see the pet, thereby enabling the user to perform appropriate leash braking according to the situation, and sets the length of the leash withdrawal so that the leash is not withdrawn, thereby maintaining the desired distance between the pet and the user, thereby preventing the pet from carelessly running away, thereby enhancing safety.

[0021] Figure 1 illustrates an example of a general pet traction device according to prior art.

[0022] Figure 2 illustrates an electronic pet leash safety device according to an embodiment of the present invention.

[0023] Figure 3 illustrates an exploded view of the electronic pet leash safety device of Figure 2.

[0024] Figures 4 and 5 illustrate the internal structure of the electronic pet leash safety device of Figure 2, respectively.

[0025] Fig. 6 is an exploded view of a portion of the electronic pet leash safety device of Fig. 3.

[0026] Fig. 7 illustrates the operation of the electronic pet leash safety device of Fig. 6.

[0027] Hereinafter, an embodiment of the present invention having the above-described features will be described in more detail with reference to the attached drawings.

[0028]

[0029] An electronic pet leash safety device according to an embodiment of the present invention comprises a case (110) having a handle (111), a rope hole (113) formed through the front end of the case (112) to guide the leash (100) to be drawn out or withdrawn, a reel (114) on which the leash (100) is wound, a torsion spring (115) coupled to the reel (114) to elastically withdraw the leash (100), and a locking module that controls the rotation of the reel (114), a switch (120) formed on the side of the case (112) to set the pull-out length of the leash (100), a sensor (130) that detects the rotation of the reel (114) or the withdrawal of the leash (100), and a locking module that controls the rotation of the reel (114) by pressing or releasing the locking module. The purpose of this invention is to easily set the lead length and control the pet's sudden actions by including a control board (150) that calculates the lead length from the rotation speed and rotation amount or the lead speed detected by the motor unit (140) and the sensor (130), compares the lead length with the lead setting length, and controls the motor unit (140) according to the lead setting length to control the rotation of the reel (114), or controls the motor unit (140) according to the speed to lock the rotation of the reel (114).

[0030] Hereinafter, with reference to FIGS. 2 to 7, the electronic pet leash safety device of the above-described configuration will be described in detail as follows.

[0031]

[0032] First, the case part (110), with reference to FIGS. 2 to 5, is composed of a case (112) having a handle (111) formed at the rear end and a pair of opposing covers, a rope hole (113) formed through the front end of the case (112) to guide the lead line (100) to be withdrawn or recovered, a reel (114) on which the lead line (100) is wound, a torsion spring (115) coupled to the inside of the reel (114) to elastically recover the lead line (100) through the rope hole (113), and a locking module that controls the rotation of the reel (114).

[0033] Here, the locking module may be configured with a rotating plate (116b) that is integrally coupled to both sides of the reel (114) and rotates in conjunction with the reel (114), and has asymmetrical catches (116a) protruding at regular intervals on the outer surface and arranged on the circumference, a hinge plate (116e) that is coupled to the case (112) through a hinge shaft (116c) to rotate hingedly and has a hook (116d) formed that is fastened to the catches (116a), and a return spring (116f) that contacts the upper end of the locking plate (116e) and elastically pushes the upper end of the locking plate (116e) so that the hook (116d) is released from the catches (116a).

[0034] In addition, referring to FIGS. 3 to 5, a push-type fixing button (117) is formed on the upper part of the case (112), and a fixing member (116g) formed laterally extending to the rotating plate (116b) is physically pressed through a pressure member (117a) formed on the lower part of the fixing button (117), so that the hook (116d) is fastened to the catch (116a), thereby allowing an emergency stop of the withdrawal of the lead line (100).

[0035] Next, the switch (120), as shown in FIGS. 2 to 4, is formed to be exposed on one side of the case (112) to set the pull-out length of the lead line (100). Specifically, the switch (120) is configured with a slide bar (121) that sets the pull-out length to free, 3 m, 2 m, and 1 m, respectively, and a slide switch (122) that generates a contact signal according to the elevation of the slide bar (121), so that an electric signal by the slide switch (122) can be transmitted to the control board (150) (see FIG. 6).

[0036] Alternatively, the switch (120) can be configured to set the withdrawal setting length in multiple stages by a dial, push button, or touch method in addition to the sliding method.

[0037]

[0038] Next, the sensor (130), referring to FIGS. 3 and 4, is composed of a Hall sensor or an optical sensor, detects the rotation of the reel (114) or the withdrawal of the lead line (100) and transmits it to the control board (150). It can be arranged adjacent to the outside of the reel (114) to detect the forward and reverse rotation of the reel (114), respectively.

[0039] For example, the sensor (130) can detect the rotation of the reel (114) itself to identify the pull-out length, or can detect the pull-out and pull-in of the lead line (100) to identify the pull-out length, and although not shown, when detecting the pull-out length of the lead line (100), the sensor can detect the rotation amount of a roller (not shown) placed in the rope hole (113) or identify the scale engraved on the lead line (100) to identify the pull-out length.

[0040] Next, the motor unit (140) pressurizes or releases the locking module so that the locking module controls the rotation of the reel (114). Specifically, referring to FIGS. 5 to 7, the motor unit (140) is composed of an oval cam (141) that contacts the lower rear surface of the fastening plate (116e), a motor (142) that rotates the oval cam (141), a battery (143) that supplies power to the motor (142), and a battery holder (144) that secures the battery (143). The oval cam (141) is rotated to contact or release the fastening plate (116e), thereby causing the hook (116d) to be fastened or released from the hook (116a), thereby electronically setting the pull-out length of the lead line (100) and electronically locking the lead line (100).

[0041]

[0042] Next, the control board (150) calculates the pull-out length of the lead line (100) from the rotation speed and rotation amount or the pull-out speed and pull-out amount detected by the sensor (130), compares the actual pull-out length with the pull-out set length set by the switch (120), and controls the motor unit (140) according to the pull-out set length to control the rotation of the reel (114), or controls the motor unit (140) according to the rotation speed to lock the rotation of the reel (114).

[0043] Accordingly, the lead rope (100) can be pulled out to the full length of the lead rope (100) and 3 m, 2 m, and 1 m, respectively.

[0044] In addition, the control board (150) can detect a rapid speed due to an unexpected action, such as a pet suddenly running away, and automatically lock the reel (114) by controlling the motor (140) to lock the rotation when the withdrawal speed of the leash (100) exceeds a preset reference speed, thereby preventing a safety accident.

[0045] Meanwhile, referring to FIG. 5, a display panel (not shown), an LED (not shown), and a speaker buzzer (160) are formed in the case (112), a vibration motor (170) is formed in the handle (111), and the control board (150) can provide the user with withdrawal information by setting the text of the display panel, the light cycle of the LED, the sound effect by the speaker buzzer (160), and the vibration cycle of the vibration motor (170) differently for each step of the withdrawal length, for example, when the withdrawal length is 1 m, 2 m, or 3 m.

[0046] Accordingly, it is possible to prevent safety accidents to pets by making it easy to determine the withdrawal length even when the user's gaze is diverted from the pet.

[0047]

[0048] Accordingly, by configuring the electronic pet leash safety device as described above, when a pet dog suddenly runs out due to an unexpected action, the device detects the rapid withdrawal of the leash and automatically locks the leash, thereby preventing safety accidents caused by the pet in advance. In addition, the amount of leash withdrawal is detected and the amount of leash withdrawal is notified to the user through text, sound, and vibration, so that the user can determine the distance from the pet without having to see the pet, thereby performing appropriate leash braking according to the situation. In addition, by setting the length of the leash to prevent the leash from being withdrawn, the distance between the pet and the user is maintained at a desired distance, thereby preventing the pet from carelessly falling far away, thereby enhancing safety.

[0049]

[0050] The embodiments described in this specification and the configurations illustrated in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

Claims

1. A case portion comprising a case having a handle formed at the rear end, a rope hole formed through the front end of the case to guide a pet leash to be pulled out or retrieved, a reel on which the leash is wound, a torsion spring coupled to the reel to elastically retrieve the leash, and a locking module that controls rotation of the reel; A switch formed on the side of the case to set the pull-out length of the lead line; A sensor detecting the rotation of the reel or the withdrawal of the lead line; A motor unit that pressurizes or releases the locking module to cause the locking module to control the rotation of the reel; and An electronic pet leash safety device, comprising: a control board for calculating the withdrawal length from the rotation speed and rotation amount or withdrawal speed detected by the sensor, comparing the withdrawal length with the withdrawal setting length, and controlling the motor unit according to the withdrawal setting length to control the rotation of the reel, or controlling the motor unit according to the speed to lock the rotation of the reel.

2. In paragraph 1, An electronic pet leash safety device, characterized in that the locking module comprises: a rotating plate coupled to both sides of the reel and having engaging protrusions protruding from an outer surface at regular intervals; a fastening plate coupled to the case via a hinge axis so as to hinge-rotate and having a hook formed thereon to be fastened to the engaging protrusions; and a return spring that contacts the upper end of the fastening plate and elastically pushes the upper end of the fastening plate so that the hook is released from the engaging protrusions.

3. In paragraph 1, An electronic pet leash safety device characterized in that the switch comprises a slide bar for setting the withdrawal length to free, 3 m, 2 m, and 1 m, respectively, and a slide switch for generating a contact signal according to the raising and lowering of the slide bar, and transmits an electric signal by the slide switch to the control board.

4. In paragraph 1, An electronic pet leash safety device, characterized in that the sensor detects the pull-out length by detecting the rotation of the roller according to the pull-out of the leash, including a roller arranged in the rope hole.

5. In paragraph 2, The above motor part, An electronic pet leash safety device comprising: an oval cam that contacts the lower rear surface of the above-mentioned fastening plate; a motor that rotates the oval cam; a battery that supplies power to the motor; and a battery holder that secures the battery, wherein the hook is connected to or released from the catch by making contact with or releasing from the fastening plate according to the rotation of the oval cam.

6. In paragraph 1, An electronic pet leash safety device, characterized in that the control board controls the motor unit to lock the rotation of the reel when the withdrawal speed of the leash exceeds a preset reference speed.

7. In paragraph 1, An LED and a speaker buzzer are formed in the case above, and a vibration motor is formed in the handle. An electronic pet leash safety device, characterized in that the control board sets the light-emitting cycle of the LED, the sound effect by the speaker buzzer, and the vibration cycle of the vibration motor differently for each step of the extraction length.

Citation Information

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