trimmer

Abstract

Devices, systems, and methods for nail trimming, such as animal nail trimming, include a nail trimmer including a body for grasping by a user's hand. The body can define a trimming space for receiving a nail of a subject for trimming. The trimmer can include at least one blade coupled with the body to move between a retracted position retracted from the trimming space and a trimming position extended into the trimming space for trimming.

Description

[0001] Cross-reference to related applications

[0002] This invention claims the benefit and priority of U.S. Provisional Patent Application No. 63 / 233,687, filed August 16, 2021, and incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to apparatus, systems, and methods for trimming. More specifically, this disclosure relates to apparatus, systems, and methods for trimming nails.

[0004] Regardless of the subject's temperament, grooming, such as grooming animals, can be challenging. However, many subjects may experience stress and / or anxiety during grooming activities. Stress and / or anxiety can increase agitation and / or activity. Additionally, even without excessive stress, subjects may be very active during grooming. Grooming activities can be challenging and / or physically demanding for the groomer.

[0005] Reducing the challenge to the subject and / or esthetician can enhance the beauty process and / or outcome. Nail trimming can be particularly challenging for sensitive subjects. Nail trimming may involve sharp tools and requires delicate handling. Carefully trimming a subject's nails can be challenging, taking into account their temperament. Summary of the Invention

[0006] This application discloses one or more features and / or the following features recited in the appended claims, which may individually or in any combination comprise patentable subject matter.

[0007] According to one aspect of this disclosure, a trimmer may include: a body for a user's hand to grip, the body defining a trimming space for receiving a subject's nail for trimming; and a trimming system including at least one blade coupled to the body for movement between a retracted position from the trimming space and a trimming position extending into the trimming space for trimming. In some embodiments, the at least one blade may include a trimming edge having a V-shaped arrangement.

[0008] In some embodiments, the trimming edge may be defined by a beveled portion of the at least one blade. In some embodiments, the trimming edge may include at least two opposing portions. At least one of the at least two portions may be formed by the beveled portion of the at least one blade.

[0009] According to another aspect of this disclosure, a nail trimmer may include: a body for a user's hand to grip, the body defining a trimming space for receiving a subject's nails for trimming; and at least one blade coupled to the body to move between a retracted position from the trimming space and a trimming position extending into the trimming space for trimming.

[0010] In some embodiments, the nail trimmer may further include a trimming control system. The trimming control system may include a sensor system for detecting non-shell material on the subject's nails within the trimming space. The trimming control system may be configured to prevent the at least one blade from moving between the retracted position and the trimming position in response to the detection of non-shell material within the trimming space.

[0011] In some embodiments, the trimming control system may be configured to prevent the at least one blade from moving between the retracted position and the trimming position in response to detecting no material within the trimming space. The trimming control system may also be configured to allow the at least one blade to move between the retracted position and the trimming position in response to detecting only shell material within the trimming space. Configuration for allowing the at least one blade to move between the retracted position and the trimming position may include enabling the operation of an actuator to drive the at least one blade out of the retracted position. Enabling the actuator may include activating an activation button to cause the actuator to activate, thereby driving the at least one blade out of the retracted position in response to a user activating the activation button.

[0012] In some embodiments, the configuration for detecting non-shell material within the trimming space may include observing a predetermined threshold characteristic within the trimming space. The predetermined threshold characteristic includes a molar decay coefficient ε. In some embodiments, the configuration for detecting non-shell material may include observing a molar decay coefficient ε greater than about 0.7M. -1 cm -1 The configuration for detecting the absence of material within the trimming space may include observing a predetermined threshold characteristic of the absence of material within the trimming space. This predetermined threshold characteristic of the absence of material may include a molar decay coefficient ε.

[0013] In some implementations, detecting configurations without shell material may include observing a molar decay coefficient ε less than about 0.1M. -1 cm -1 The configuration for detecting shell-only material within the trimming space may include observing a predetermined threshold characteristic of the shell-only material within the trimming space. The predetermined threshold characteristic of the shell-only material may include a molar decay coefficient ε. The configuration for detecting shell-only material may include observing the molar decay coefficient ε at approximately 0.1 M...-1 cm -1 To approximately 0.7M -1 cm -1 Within the range.

[0014] In some embodiments, the configuration for detecting at least one of non-shell material, no material, and shell-only material within the trimming space may include sensing infrared light propagating through the trimming space. The configuration for detecting at least one of non-shell material, no material, and shell-only material within the trimming space may include sensing infrared light propagating through the trimming space in the range of about 880 nm to about 940 nm. The predetermined threshold can be detected based on a voltage output. The voltage output may be generated by one or more photodiodes of the trimming control system based on the infrared light propagating through the trimming space.

[0015] In some embodiments, the trimming control system may be configured to prevent the at least one blade from moving between the retracted position and the trimming position in response to the detection of at least one of living cells, blood, and nerves within the trimming space. The trimming control system may be configured to prevent the at least one blade from moving between the retracted position and the trimming position in response to the detection that no object is present within the trimming space. The trimming control system may be configured to detect the presence of only shell material within the trimming space. In response to the detection of only shell material, the trimming control system may be configured to activate a trimming indicator to indicate that trimming is acceptable.

[0016] In some embodiments, the trimming indicator may include a light indicator that illuminates to signal that trimming is acceptable. Illumination for signaling trimming may include changing the color of the light indicator to invite trimming. Illumination for signaling trimming may include projecting a target line onto the shell material within the trimming space to signal that trimming is acceptable.

[0017] In some embodiments, the target line can be projected along a target path onto the shell material within the trimming space so that at least one blade at the trimming position can trim it. The trimming control system includes at least one light for projecting the target line. Projecting the target line may include lighting a lamp as a light source, such as one or more light-emitting diodes.

[0018] In some embodiments, the trimming control system may include a stabilization system for stabilizing at least one blade relative to the subject's nail. The stabilization system may include an actuator coupled to the at least one blade and configured to gently squeeze the subject's nail to stabilize the at least one blade relative to the subject's nail. The actuator may be arranged to actuate to move the at least one blade between the retracted position and the trimming position. The trimming control system may be configured to operate the actuator to position the blade to gently squeeze the subject's nail by moving it to a squeezing position located between the retracted position and the trimming position.

[0019] In some embodiments, the trimming control system may be configured to determine and move the at least one blade to a squeezing position by operating the actuator to gently move it between the retracted position and the trimming position until a predetermined threshold event is achieved. The predetermined threshold event may include a predetermined threshold reaction force on the at least one blade, the predetermined threshold reaction force indicating that the subject's nail is being gently squeezed by the at least one blade. In some embodiments, the reaction force may be measured by a sensor and / or by the operating conditions of the actuator (e.g., power, current, voltage). The actuator may be operable to position the at least one blade in the squeezing position in response to initial actuation of an actuation button for squeezing. In some embodiments, when the at least one blade is in the squeezing position, the trimming control system may be configured to operate the actuator to move the blade to the trimming position in response to actuation of an actuation button for trimming.

[0020] In some embodiments, a trimming control system configuration for preventing at least one blade from moving between a retracted position and a trimming position in response to the detection of non-shell material within the trimming space may include a configuration for preventing at least one blade from moving out of the retracted position in response to the detection of non-shell material within the trimming space. A trimming control system configuration for preventing at least one blade from moving between a retracted position and a trimming position in response to the detection of no material within the trimming space may include a configuration for preventing at least one blade from moving out of the retracted position in response to the detection of no material within the trimming space. A configuration for preventing at least one blade from moving out of the retracted position may include blocking the supply of power to the actuator for moving at least one blade. A configuration for preventing at least one blade from moving out of the retracted position may include blocking communication of an activation button for activating the actuator to move at least one blade. A configuration for preventing at least one blade from moving out of the retracted position may include rejecting and / or affirmatively transmitting a rejection of actuator operation for moving at least one blade. A configuration for preventing at least one blade from moving out of the retracted position may include a locking member engaging at least one blade to prevent movement.

[0021] According to another aspect of this disclosure, a nail trimmer may include: a body for a user's hand to grip, the body defining a trimming space for receiving a subject's nails for trimming; at least one blade coupled to the body for movement between a retracted position from the trimming space and a trimming position extending into the trimming space for trimming; and a trimming control system including a sensor system for detecting non-shell material of the subject's nails within the trimming space. In some embodiments, the trimming control system may include an activation button for actuating at least one blade between the retracted position and the trimming position.

[0022] In some embodiments, the trimming control system can be configured to prevent at least one blade from moving between a retracted position and a trimming position in response to the detection of non-shell material within the trimming space. Configurations for preventing movement of at least one blade may include a configuration for disabling an actuation button. The nail trimmer may also include an actuator that engages with at least one blade to drive at least one blade between the retracted position and the trimming position. The actuator may be an electric actuator. The electric actuator may be configured to use electricity to drive at least one blade. In some embodiments, the actuator is a linear actuator.

[0023] In some implementations, in response to a user activating an activation button, the trimming control system can be configured to control an actuator to drive at least one blade to move between a retracted position and a trimming position. The trimming control system can also be configured to prevent at least one blade from moving out of the retracted position in response to the detection of non-shell material within the trimming space.

[0024] In some embodiments, in response to the detection of non-shell material within the trimming space, the trimming control system can be configured to prevent at least one blade from moving out of the retracted position even if the user activates the activation button. Configurations for preventing at least one blade from moving out of the retracted position may include blocking power supply to the actuator. Configurations for preventing at least one blade from moving out of the retracted position may include disabling the activation button and arranging a lock in a locked position to prevent at least one blade from moving out of the retracted position.

[0025] In some embodiments, the trimming control system may be configured to activate actuator operation to drive at least one blade out of a retracted position in response to the absence of non-shell material detected within the trimming space. In some embodiments, the trimming control system may include an indicator. The control system may be configured to operate the indicator to warn the user that no non-shell material is present in the trimming space.

[0026] In some embodiments, the trimming control system may include an indicator, and the control system may be configured to activate the indicator to warn the user of the presence of non-shell material in the trimming space in response to the sensor system detecting non-shell material in the subject's nail within the trimming space.

[0027] In some embodiments, the nail trimmer may further include a guide disposed at the trimming space. The guide may be formed of an elastic material for providing elastic contact with the subject's nail to position it within the trimming space. The guide may define an insertion space corresponding to the trimming space to receive the subject's nail through the insertion space and insert it into the trimming space. In some embodiments, the guide may be formed as an annular member defining the insertion space therein.

[0028] In some embodiments, the body may include a frame defining at least a portion of the trimming space. The frame may be formed as a rigid member to hold the subject's nail in place for trimming with at least one blade. The frame may be arranged adjacent to at least one blade. The frame may include an annular member defining at least a portion of the trimming space. In some embodiments, the at least one blade may be arranged to cut along the trimming space with the annular member as it moves between a retracted position and a trimming position.

[0029] In some embodiments, the sensor may be positioned on the side of the frame opposite to at least one blade. The sensor may be positioned on one side of the frame, from which the subject's fingernail is inserted into the trimming space. In some embodiments, the sensor may be positioned on the same side of the frame as at least one blade. The sensor may be positioned on one side of the frame, from which the subject's fingernail is inserted into the trimming space.

[0030] In some embodiments, the at least one blade may include a blade tip defining a trimming surface. The trimming surface may include a bevel. The trimming surface may be defined with curvature. The trimming surface may be formed as concave. In some embodiments, the trimming surface may be formed as convex.

[0031] In some embodiments, the body may extend to define a handle for a user's hand to grip. The trimming space may be defined by an extension of the handle from one end of the body. In some embodiments, the activation button may be attached to the body on a side oriented parallel to the direction in which the subject's fingernail is inserted into the trimming space.

[0032] In some embodiments, the sensor can be configured to generate a magnetic field. The sensor can be configured to sense threshold interference of the magnetic field to detect the presence of non-shell material within the trimming space. In some embodiments, the sensor can be configured to detect the blood cell density and / or width of a subject's fingernail.

[0033] In some embodiments, the non-shell material of the subject's nails may be limited to include the subject's live flesh. In some embodiments, the nail trimmer may be an animal nail trimmer. The nail trimmer may be a pet nail trimmer.

[0034] Additional features may be incorporated, alone or in combination with any other features (including those listed above and those listed in the claims), into patentable subject matter and will become apparent to those skilled in the art upon consideration of the following detailed description of illustrative embodiments illustrating the best mode of carrying out the invention as now understood. Attached Figure Description

[0035] For a detailed description, please refer to the attached diagram, in which:

[0036] Figure 1 This is a perspective view of a nail trimmer, showing that the trimmer includes a body for the user's hand to grip, the body defining a trimming space for receiving the subject's nails;

[0037] Figure 2 yes Figure 1 Exploded perspective view of the various parts of a nail clipper;

[0038] Figure 3 yes Figure 1 and Figure 2 A top view of a nail clipper, showing the trimmer blades arranged in the retracted position;

[0039] Figure 4 yes Figures 1 to 3 A top view of a nail clipper, showing the trimming blades arranged in the trimming position;

[0040] Figure 5 yes Figures 1 to 4 A bottom view of a nail clipper, showing the trimmer blades in the retracted position;

[0041] Figure 6 yes Figures 1 to 5 A bottom view of a nail clipper, showing the trimming blades arranged in the trimming position;

[0042] Figure 7 yes Figures 1 to 5 A perspective view of the trimming blades of a nail clipper;

[0043] Figure 8 yes Figures 1 to 6 A top view of the trimming blades of a nail clipper;

[0044] Figure 9 yes Figures 1 to 7 A left-side front view of a nail clipper;

[0045] Figure 10 yes Figures 1 to 7 and Figure 9 A front view of the right side of a nail clipper;

[0046] Figure 11 yes Figures 1 to 7 , Figure 9 and Figure 10 A schematic view of the control system of a nail trimmer;

[0047] Figure 12 yes Figures 1 to 6 A perspective view of another embodiment of the nail clipper's trimming blade and frame, showing the trimming blade in the retracted position and an actuator connected to the trimming blade for actuation;

[0048] Figure 13 yes Figure 12 A perspective view of the nail clipper's trimming blade and frame, showing the actuator having moved the trimming blade to the trimming position; and

[0049] Figure 14 yes Figure 12 and Figure 13 Exploded perspective view of the trimming blade and frame;

[0050] Figure 15 yes Figures 12 to 14 The rear perspective of the frame;

[0051] Figure 16 yes Figures 1 to 12 A front perspective view of another embodiment of the guide for a nail clipper;

[0052] Figure 17 yes Figure 16 The rear perspective view of the guide component; and

[0053] Figure 18 yes Figures 1 to 6 A top view of a nail trimmer, which includes a trimming blade system defining a parallelogram cutting edge. Detailed Implementation

[0054] For the purpose of promoting an understanding of the principles of this disclosure, reference will now be made to several illustrative embodiments shown in the accompanying drawings, and these embodiments will be described using specific language.

[0055] Nail trimming can be a particularly challenging part of grooming. For example, in animal nail trimming, such as trimming a dog's nails, it may be necessary to keep the subject's nails stable while using relatively sharp tools for fine control. At least partially, the subject's appendages (hands, feet, paws) must be controlled (restricted) to prevent unintended movement during trimming. Many subjects may experience stress and / or anxiety under such restrictions, potentially leading to tension and / or excitement, thus exacerbating the challenge. Furthermore, safely controlling such delicate work, even without excessive stress, is very challenging for large and / or robust subjects.

[0056] In addition, special care must be taken when trimming nails. Many subjects, including dogs (and even humans), have nails, which include the nail bed, often referred to as the "nucleus." The nucleus is typically part of the soft tissue beneath the harder nail plate or shell material (e.g., beneath a shell composed of keratin) and may include the vascularized core of the nail. In humans, the nucleus is located beneath the nail plate or shell, while in dogs and other animals, the nucleus may be enclosed within the nail shell or nail plate.

[0057] While it is safe to trim the nail cuticle (e.g., keratin) itself, care should be taken not to trim the flesh itself, or even too close to the flesh, as this could result in injury and / or bleeding. Therefore, it is important to consult a suitable physician before trimming. However, it is understandable that properly trimming a subject's nails is challenging and may involve challenges such as those mentioned above. The groomer may need to forcibly hold the subject's appendage in place while meticulously trimming the nail cuticle in that position. Maintaining this contrast in strength between restraint and the delicate work of proper trimming can be very challenging. Additionally, some subjects (e.g., infants, patients with conditions that predispose them to nail trimming) may be particularly sensitive to improper trimming, such as accidentally trimming the flesh. Therefore, properly trimming nails can be challenging.

[0058] refer to Figure 1 The nail trimming system is illustratively represented as a nail trimmer 12. The nail trimmer 12 includes a body 14 formed for a user's hand to grip. The body 14 includes a handle 16 and a head 18, the head protruding from the handle 16 at one end of the body 14. The handle 16 is illustratively shaped as an elongated portion of the body 14 for comfortable gripping by the user's hand. The head 18 defines a trimming space 22 for receiving a subject's nail insertion for trimming.

[0059] The trimming space 22 is formed as an area defined by the body 14 for receiving the subject's fingernails. In such a way... Figure 1In the illustrated embodiment, the trimming space 22 is defined by the annular interior of the head 18 of the body 14. The trimming space 22 is completely surrounded by the body 14, but in some embodiments, it may only be partially surrounded. In some embodiments, the body 14 may define a trimming space 22 adjacent to it, the trimming space having trimming blades or related components extending from the body 14 to support trimming within the trimming space 22, as discussed in further detail herein.

[0060] The trimming blade 24 is arranged within the trimming space 22 for trimming operations. As discussed in further detail herein, the trimming blade 24 is coupled to the body 14 to perform trimming operations as follows: Figure 1 The nail trimmer 12 moves between the retracted position and the extended trimming position for trimming the subject's nails located within the trimming space 22. The nail trimmer 12 can provide detection of the subject's live flesh within the trimming space 22 to reduce the risk of accidental damage to the subject's live flesh, as discussed in further detail herein.

[0061] Now for reference Figure 2 For ease of description, the nail trimmer 12 is shown partially exploded. The body 14 illustratively includes a rear portion 26, a central portion 28, and a front portion 30. When assembled, the rear portion 26 abuts the central portion 28 at its rear, and the front portion abuts the central portion 28 at its front, such that the central portion 28 is located between the front portion 26 and the rear portion 30. In the illustrative embodiment, the rear portion 26, the central portion 28, and the front portion 30 together define the handle 16 and the head 18 of the body 14. In some embodiments, the body 14 may be formed from any suitable number of portions, for example, but not limited to, only two portions including a front and a rear portion adjacent to each other. The body portions 26, 28, and 30 together define an internal space for receiving other components, as discussed in detail herein.

[0062] The central portion 28 includes a base 32 forming a rigid portion of the main body 14. The base 32 is illustratively described as an annular member that separates the front portion 26 and the rear portion 30 and defines an open interior 34 for other components. The central portion 28 includes an indicator 36.

[0063] Indicator 36 is illustratively represented as an LED light fixed to the exterior of base 32. Indicator 36 can communicate when the user is performing trimming operations, as discussed in detail elsewhere herein. As an LED light, indicator 36 illustratively surrounds base 32 and thus surrounds the longitudinal (circumferential) exterior of body 14 during assembly.

[0064] Still referencing Figure 2The nail trimmer 12 includes an activation button 38 for the user to activate in order to perform trimming. The activation button 38 is arranged to extend from the front portion 30 of the body 14 (extending through the front portion). In an illustrative embodiment, the user can select the activation button 38 to initiate trimming by pressing the button 38.

[0065] Now for reference Figure 3 The nail trimmer 12 is shown with blade 24 in the retracted position. In the illustrative embodiment, the retracted position is the default position of blade 24. Figure 4 In the middle, blade 24 has been moved to the trimming position. In the trimming position, blade 24 has extended through the trimming space 22 to trim the subject's nails. Figure 5 In the image, the nail clipper 12 is again shown with the blade 24 in the retracted position, similar to... Figure 3 However, this will be shown in the subsequent view. Figure 6 In the image, the nail trimmer 12 is shown with the blade 24 in the trimming position, which is similar to... Figure 4 However, the view will be shown later.

[0066] Return to Figure 2 The nail trimmer 12 includes a sensor system comprising a sensor 40 for detecting the presence of materials other than the nail shell (e.g., non-keratinous materials) within the trimming space 22. The sensor 40 is illustratively represented as a magnetic field sensor configured to generate and detect changes in a magnetic field. For example, introducing an object into the magnetic field can interfere with it, and this interference can be detected by the sensor 40. In some embodiments, the detection of non-shell (e.g., non-keratinous) materials (more specifically, the subject's live flesh) can be provided by any suitable means, including but not limited to light, sound, electrical, and / or magnetic sensors.

[0067] Sensor 40 is configured to determine whether any non-shell material (and specifically, whether any live flesh of the subject) is present within the trimming space 22. For example, sensor 40 can detect the density and / or thickness of the material within the trimming space 22 such that trimming can only be performed when only the subject's nail shell (not live flesh) is present in the trimming space 22, and when the subject's live flesh is present in the trimming space 22, sensor 40 can detect a difference in density (and / or thickness) corresponding to the live flesh relative to the individual nail shell to avoid trimming when the subject's live flesh is present in the trimming space 22. The nail trimmer 12 can thus determine whether the subject's live flesh is present in the trimming space 22 to avoid accidental trimming that could damage the subject's live flesh.

[0068] In response to the detection of non-shell material, such as live meat of a subject, within the trimming space 22, indicator 36 can communicate to warn the user of the presence of non-shell material. Indicator 36 is illustratively represented as an LED light configured to emit light to indicate the presence of non-shell material within the trimming space 22. In an illustrative embodiment, indicator 36 is configured to emit red light to indicate the presence of non-shell material within the trimming space 22, thus warning the user that trimming should not be performed. In an illustrative embodiment, indicator 36 emits green light when no non-shell material is present in the trimming space 22 and trimming is permitted based on sensor 40. When trimming is permitted, the user can actuate activation button 38 to operate blade 24 to perform trimming within the trimming space 22.

[0069] In some implementations, indicator 36 may be configured to remain non-illuminating when no non-shell material is present in trimming space 22, and to illuminate (e.g., red light) based on sensor 40 to indicate the presence of non-shell material in trimming space 22; or it may be configured to illuminate (e.g., green light) when no non-shell material is present in trimming space 22, and to remain non-illuminating based on sensor 40 to indicate the presence of non-shell material in trimming space 22, thereby warning the user that trimming should not be performed.

[0070] Still referencing Figure 2 The main body 14 includes a frame 42 formed as a rigid member for holding the subject's fingernails in place for trimming by the blade 24. The frame 42 includes a base 44 fixed to the handle 16 and a head 46 extending from the connection to the base 44.

[0071] The head 46 of frame 42 defines an opening 48 that forms at least a portion of the trimming space 22. The head 46 illustratively includes an edge 50 defining the opening 48. The edge 50 is illustratively formed circumferentially around the opening 48. Although the edge 50 is illustratively configured to completely surround the opening 48, in some embodiments, it may only partially surround the opening 48.

[0072] In the illustrative embodiment, the frame 42 remains stationary relative to the blade 24 during the movement of the blade 24 between the retracted and trimming positions. The frame 42 is positioned adjacent to the blade 24. The frame 42 is so close to the blade 24 that the blade 24 is arranged to cut along the trimming space 22 and edge 50 as it moves between the retracted and trimming positions. The cutting between the blade 24 and the frame 42 can be aided by the frame 42 maintaining the position of the subject's nail (e.g., as a stop for reaction force) while the blade 24 is trimming. In some embodiments, the reaction force for trimming can be provided by using more than one blade. Although the blade 24 is arranged to cut together with the frame 42, in some embodiments, the blade 24 may be arranged with strict tolerances relative to the frame 42 without making specific contact with the frame for trimming.

[0073] refer to Figure 7 and Figure 8 The blade 24 includes a base 52 and a head 54 extending from the base 52. The base 52 is generally arranged within the body 14, with the head 54 close to the trimming space 22 (e.g., Figure 1 (As shown). The head 54 is illustratively topographically formed with a tapered outer edge 56.

[0074] Blade 24 includes a blade tip 58 formed on head 54. Blade tip 58 defines a trimming surface 60 for trimming. Trimming surface 60 includes a bevel. Trimming surface 60 is illustratively defined with curvature. The curvature of trimming surface 60 is formed as concave. The concave curvature of trimming surface 60 can assist trimming by promoting an inward force toward the focal point, which can help reduce movement of the subject's nail during trimming.

[0075] Figure 9 and Figure 10 The left and right sides of the nail trimmer 12 are shown. In the illustrative embodiment, the nail trimmer 12 extends along... Figure 9 and Figure 10 The horizontal direction is roughly symmetrical. Various aspects of the circular curvature of the main body 14 can be observed to achieve smooth and comfortable operation.

[0076] Now for reference Figure 11 The control system 62 of the nail trimmer 12 can control the operation of the nail trimmer 12. The control system 62 includes a processor 64 for executing instructions stored in a memory 66, and communication circuitry 68 for transmitting signals according to instructions from the processor 64. An activation button 38 is illustratively configured as part of the control system 62. An indicator 36 and / or optional lock 74 may each be formed as part of the control system, but in some embodiments, they may be formed separately and arranged to communicate with the control system 62.

[0077] Sensor 40 is illustratively incorporated as part of the communication between the control system 62 and the sensor to provide a signal indicating the presence (or absence) of non-shell material (such as the subject's live flesh) within the trimming space 22. In the illustrative embodiment, sensor 40 transmits a signal indicating information about objects within the trimming space 22. The control system 62 determines the presence of non-shell material within the trimming space 22 based on the information from sensor 40 regarding objects within the trimming space 22.

[0078] In response to determining the presence of non-shell material within the trimming space 22, the control system 62 prevents actuation of the actuator 70. The actuator 70 is arranged to be mounted within the body 14 and to communicate with the control system 62. The nail trimmer 12 includes a power source 72 mounted within the body 14, the power source being embodied as a battery. The communication circuitry 68 of the control system 62 illustratively includes power control circuitry including power circuitry (e.g., a battery management system) for operating the actuator 70. The actuator 70 is illustratively embodied as a linear actuator coupled to the blade 24 for driving the blade 24 to move between a retracted position and a trimming position. The illustrative actuator 70 is configured to provide approximately three pounds of driving force to drive the blade 24 for trimming. In some embodiments, the actuator 70 may include actuators of any suitable type, such as, but not limited to, rotary actuators.

[0079] In an illustrative embodiment, when there is no non-shell material (i.e., no live meat) in the trimming space 22, the control system 62 can activate the actuator 70 to move the blade 24. When the control system 62 determines, based on information from the sensor 40, that there is no non-shell material in the trimming space 22, it activates the actuator 70 to actuate via the activation button 38. In response to determining that no non-shell material is present in the trimming space 22, the control system 62 can communicate with the indicator 36 to signal to the user, for example, by emitting a green light as described above, that trimming can be performed.

[0080] Conversely, when the control system 62 determines, based on information from the sensor 40, that non-shell material (i.e., live meat) is within the trimming space 22, the control system 62 prevents the activation of the actuator 70 to prevent the blade 24 from moving out of the retracted position. In response to determining that non-shell material is within the trimming space 22, the control system 62 may communicate with the indicator 36 to convey to the user, for example, by emitting red light as described above, that trimming cannot be performed.

[0081] In an illustrative embodiment, the control system 62 can prevent the blade 24 from moving by disabling the actuator 70. For example, the control system 62 can refuse power supply from the power control circuitry to activate the actuator 70 to leave the retracted position. In some embodiments, any suitable means of preventing the blade 24 from moving can be applied, such as, but not limited to, refusing communication from the activation button 38 to activate the actuator 70.

[0082] In some embodiments, the nail trimmer 12 may include an optional lock 74 operable between an unlocked position that allows movement of the blade 24 and a locked position that prevents the blade 24 from moving out of the retracted position. The lock 74 is illustratively configured as part of a control system 62 that operates according to the control system 62 to prevent the blade 24 from moving out of the retracted position in response to determining that non-shell material is within the trimming space 22. The lock 74 is illustratively represented as including a solenoid selectively operable to engage or disengage with the blade 24. In some embodiments, the lock 74 may include a physical locking device of any suitable manner for selectively preventing the blade 24 from moving out of the retracted position.

[0083] exist Figure 11 In this embodiment, power control of the control system 62 is represented by a switch 65 for switching the power on and off. The switch 65 is illustratively mounted on the main body 14, as shown below. Figure 1 As shown. The user can operate switch 65 between the off position (power off) and the on position (power on) of trimmer 12. In some embodiments, switch 65 may have any suitable form for switching power, including but not limited to a button.

[0084] exist Figure 11 In this design, trimmer 12 includes a power port 67 embodied as a Universal Serial Bus Type-C (USB-C) port. Power port 67 is configured to receive an external power cable for directly powering trimmer 12 and / or for charging power supply 72. Power port 67 is illustratively mounted on the side of body 14 opposite to activation button 38, as shown below. Figure 5 and Figure 6 As shown.

[0085] exist Figure 11 In this embodiment, the control system 62 may include a trimming prevention system for preventing trimming. In an illustrative embodiment, the trimming prevention system includes a blade 24 configured as a sensor. The control system 62 is arranged to be electrically connected to the blade 24 via power supplies 80, 82, which collectively define an electrical path for current flow. A small amount of current flows through the electrical path through the blade 24, and the control system 62 actively monitors for disturbances in the electrical path. In an illustrative embodiment, the processor 64 may operate communication circuitry 68 to provide and monitor the current flowing through the electrical path including the blade 24.

[0086] When a non-shell material comes into contact with the blade 24, the current through the blade 24 is interfered with. For example, although a fingernail shell itself may be partially conductive, skin and / or live flesh have greater conductivity and can interfere with the electrical path (e.g., voltage and / or current) through the blade 24 to a detectable degree. Therefore, contact between a fingernail shell and the blade 24 can be distinguished from contact between live flesh and the blade 24. In an illustrative embodiment, the processor 64 receives an indication of interference with the electrical path from the communication circuit 68 and determines whether a non-shell material has come into contact with the blade 24.

[0087] In response to determining that non-shell material (e.g., the subject's live flesh) has come into contact with blade 24, control system 62 can prevent trimming. In an illustrative embodiment, control system 62 prevents actuator 70 by ceasing to supply actuating power to the actuator in response to determining that non-shell material has come into contact with blade 24. In some embodiments, control system 62 can prevent trimming by electrically activating actuator 70 to drive blade 24 to a retracted position. In some embodiments, control system 62 can prevent trimming by activating a stop actuator (e.g., lock 74) to prevent further movement of blade 24 toward the trimming position. In such embodiments, the stop actuator and / or actuator 70 can be configured to act with a rapid response time (e.g., less than 0.25 seconds) to prevent trimming by blade 24. Thus, trimming can be prevented when the subject's live flesh comes into contact with blade 24 to prevent further and / or wider engagement of blade 24 with non-shell material (such as live flesh of an appendage or finger) that could otherwise lead to injury.

[0088] In response to determining that non-shell material has contacted blade 24, control system 62 may operate indicator 36 to indicate that no trimming is available. For example, indicator 36 may be non-illuminating or emit a red light. In some embodiments, control system 62 may operate indicator 36 to indicate trimming is blocked by a clear warning, such as by flashing three times.

[0089] Simply return to Figure 2 Sensor 40 is illustratively located behind frame 42. Sensor 40 is arranged on the side of frame 42 opposite to blade 24. Because sensor 40 is opposite blade 24, it is arranged to detect the presence of live meat just at the opening of trimming space 22, preventing live meat from entering trimming space 22 without detection. In some embodiments, sensor 40 may be arranged at any suitable location for detecting the presence of non-shell material within trimming space 22, for example, but not limited to, on the same side of frame as blade.

[0090] Return to Figure 1The nail trimmer 12 includes a guide 76. The guide 76 is illustratively positioned in the trimming space 22 to guide the subject's nails into place for trimming. The guide 76 is illustratively formed of an elastic material, such as foam and / or rubber, to provide elastic contact with the subject's nails.

[0091] The guide 76 is illustratively described as a ring-shaped member. The guide 76 defines an opening 78 aligned with the trimming space 22. The opening 78 forms an insertion space corresponding to the trimming space 22. The insertion space is configured to receive a subject's fingernail, which is inserted through the insertion space and into the trimming space 22. When located within the trimming space 22, the subject's fingernail engages within the guide 76 to provide resilient support to help maintain stable position within the trimming space 22.

[0092] refer to Figure 3 The subject's fingernail can be inserted into the trimming space 22. The subject's fingernail is illustratively positioned from the rear (from...) Figure 3 The nail trimmer 12 is inserted into the trimming space 22, so that the subject's appendage is positioned behind the nail trimmer 12. The control system 62 initially detects only the shell material from the distal tip of the subject's nail and can accordingly operate the indicator 36, while simultaneously allowing trimming via the activation button 38. As the subject's nail is further inserted into the trimming space 22, the control system 62 can detect the presence of live tissue within the trimming space 22 and can operate the indicator 36 to signal to the beautician that no trimming is possible, while simultaneously disabling the trimming operation. Therefore, the safety of nail trimming can be improved.

[0093] Furthermore, the ease with which a beautician performs nail trimming can be improved, whether for self-care or for another subject. By detecting the live tissue within the trimming space 22, the beautician can perform the trimming with greater confidence. Electric trimming reduces pressure on the beautician's hands, which must also stabilize the subject's appendages and / or fingers during trimming. This reduction in force and / or pressure on either the beautician or the subject can also be reflected in the other, thus reducing the difficulty of nail trimming.

[0094] Now for reference Figure 12 This illustrates another embodiment of the blade 224 and frame 242 of the nail trimmer 12. The blade 224 and frame 242 are similar to blade 24 and frame 42, respectively, and the disclosures of blade 24 and frame 42 apply equally to blade 224 and frame 242, respectively, except where they conflict with the specific disclosures of blade 224 and frame 242. Blade 224 in Figure 12The blade 224 is shown in the retracted position. The blade 224 is coupled to the actuator 70 to receive force for movement between the retracted and trimming positions. Figure 13 In the image, blade 224 is shown in the trimming position, and the blade has been driven by actuator 70 for trimming.

[0095] refer to Figure 14 The frame 224 is formed as a rigid member to hold the nail in place for trimming by the blade 224. The frame 242 includes a base 244 fixed to the handle 16 of the body 14 and a head 246 extending from the connection with the base 244. The frame 224 includes a bracket 226 defining a blade housing 228. The bracket 226 includes a cover 230 and legs 232 extending between the base 244 and the cover 230. The blade housing 228 is defined between the base 244 and the cover 230 of the bracket 226. The blade housing 228 is formed open so that the blade 224 and the actuator 70 extend into opposite ends of the blade housing 228.

[0096] Frame 224 includes a bracket 234 defined at an end opposite to head 246. Bracket 234 is illustratively defined to engage actuator 70 to maintain alignment of actuator 70 and frame 224 to facilitate movement of blade 224. Bracket 234 is illustratively configured as an annular member connected on the axial side to an end of base 244. Bracket 234 is illustratively connected to an end of bracket 226.

[0097] The head 246 of the frame 242 defines an opening 248 that forms at least a portion of the trimming space 22 of the nail trimmer 12. The head 246 illustratively includes an edge 250 defining the opening 248. The edge 250 is illustratively formed circumferentially around the opening 248. Although the edge 250 is illustratively configured to completely surround the opening 248, in some embodiments, it may only partially surround the opening 248.

[0098] In the illustrative embodiment, during the movement of the blade 224 between the retracted position and the trimming position, the frame 242 remains stationary relative to the blade 224, such as Figure 12 and Figure 13As shown, frame 242 is positioned adjacent to blade 224. Frame 242 is so close to blade 224 that blade 224 is arranged to cut along opening 248 (along the trimming space 22) and edge 250 as it moves between a retracted position and a trimming position. The cutting between blade 224 and frame 242 can be aided by frame 242 maintaining the position of the subject's nail (e.g., as a stop for reaction force) while blade 224 is trimming. In some embodiments, reaction force for trimming can be provided by using more than one blade. Although blade 224 is arranged to cut together with frame 242, in some embodiments, blade 224 may be arranged with strict tolerances relative to frame 242 without specific contact with the frame for trimming.

[0099] refer to Figure 14 The blade 224 includes a base 252 and a head 254 extending from the base 252. The base 252 is generally arranged within the blade housing 228 (within the body 14), with the head 254 close to the opening 228 (and therefore close to the trimming space 22), as... Figure 12 and Figure 13 As shown.

[0100] Blade 224 includes a blade tip 258 formed on head 254. Blade tip 258 defines a trimming surface 260 for trimming. Trimming surface 260 includes a bevel and a trimming edge 262. Trimming surface 260 is illustratively defined with curvature. The curvature of trimming surface 260 is formed to be convex. The convex curvature of trimming surface 60 can assist trimming by concentrating the pointing force toward the initial contact point on the subject's nail, which can help achieve a threshold trimming force, thereby reducing the force required by actuator 70.

[0101] Now for reference Figure 15 The frame 242 includes a bevel 264 at the opening 248. The bevel 264 includes an inner edge 266 defining the opening 248 of the head 246. The bevel 264 is illustratively formed circumferentially around the opening 248. The bevel 264 and the resulting edge 266 can provide (relatively) sharp edges to aid in trimming in conjunction with the blade 224. The bevel 264 may also define a recessed area for complementary engagement of the guide 276, as discussed in further detail below.

[0102] refer to Figure 16The nail trimmer 12 may include a guide 276. Guide 276 is similar to guide 76, and the disclosure of guide 76 applies equally to guide 276 except where it conflicts with the specific disclosure of guide 276. Like guide 76, guide 276 can be positioned at the trimming space 22 to guide the subject's nail into place for trimming assistance. Guide 276 is illustratively formed of an elastic material such as foam and / or rubber to provide elastic contact with the subject's nail. Guide 276 is illustratively shaped as a ring member. Guide 276 defines an opening 278 for alignment with the trimming space 22. Opening 278 forms an insertion space corresponding to the trimming space 22. The insertion space is configured to receive the subject's nail, which is inserted through the insertion space and into the trimming space 22. When the subject's nail is within the trimming space 22, it engages within guide 276 to provide elastic support to help maintain the nail's positional stability within the trimming space 22.

[0103] The guide 276 includes a base 280 and a central platform 282 projecting from the base 280 on an axial side of the base. The central platform 282 illustratively defines a width w (illustratively a diameter) corresponding to a width defined by a portion of the ramp 264 of the frame 242, and a tapered circumferential surface 284 corresponding to the ramp 284 of the frame 242, such that the central platform 282 is received by the ramp 264 to complementarily engage with the ramp 264.

[0104] refer to Figure 17 The guide 276 illustratively includes a convex surface 286. The convex surface 286 is arranged on the axial side of the blade 280 opposite to the central platform 282. The convex surface 286 is arranged in a funnel shape toward the opening 278 to assist the subject's fingernail in insertion into the opening 278 and the trimming space 22.

[0105] This disclosure includes apparatus, systems, and methods for nail trimming. Nail trimming can be improved by detecting non-shell material within the space for blade movement. In response to the detection of non-shell material, movement of the trimming blade can be stopped. An instruction to allow trimming can be transmitted to the user to enhance confidence in proper trimming.

[0106] Within this disclosure, nail care apparatuses, systems, and methods may include safe operation, including preventing unintended blade movement. For example, apparatuses, systems, and methods within this disclosure may include configurations for preventing blade movement (e.g., preventing the blade from retracting from a retracted position) in response to a non-shell material and / or no material arrangement within the trimming space. A suitable non-limiting example of apparatuses, systems, and methods that may include desired safety features may include Safescan, sold by SafetyPawz LLC of Oakton, Virginia.TM technology.

[0107] Now for reference Figure 18 The trimmer 12 includes a trimming system 310. The trimmer 12 within the trimming system 310 is illustratively operated using a control system 62 similar to the arrangement described above, and the description of the previous arrangement also applies to the trimmer 12 having the trimming system 310, except where it conflicts with the specific disclosure of the trimming system 310 (e.g., the shape and / or arrangement of the blades 324, 330 discussed below). The trimming system 310 illustratively includes a trimming blade 324, which can be in a retracted position (e.g., when retracted from the trimming space 22) Figure 18 (As shown) operates between the trimming position extending into the trimming space 22 for trimming. The trimming blade 324 illustratively defines an angled trimming edge 326 for engaging with the subject's nail for trimming.

[0108] The trimming edge 326 illustratively defines a groove 328 with a V-shaped arrangement for assisting trimming. The groove 328 illustratively includes two portions angled toward each other to define a apex of the groove. These two portions are arranged to be inclined toward each other and / or wedged in to induce the subject's nail toward the apex of the groove as the trimming blade 324 moves toward the trimming position.

[0109] In the illustrative embodiment, the pruning blade 324 is arranged along, as shown in the figure Figure 18 The vertical direction indicated by the orientation moves between the retracted position and the trimming position. The trimming system 310 illustratively includes another blade 330 arranged opposite to the blade 324 to assist in trimming. The blade 330 is illustratively shown to remain stationary while the trimming blade 324 moves.

[0110] Blade 330 is coupled to body 14 to remain stationary as trimming blade 324 moves. Blade 330 illustratively includes a V-shaped arrangement for assisting trimming. Blade 330 includes a groove illustratively defined between two portions angled towards each other to define the apex of the groove. In the illustrative embodiment, although the groove of blade 330 is equivalent to and opposite to the groove 328 of blade 324, in some embodiments the groove of blade 330 may differ from the groove 328 of blade 324, for example, its angled portion defining an angle different from the angle of blade 324.

[0111] In the illustrative embodiment, when the blade 324 is positioned in the retracted position, the cutting edges 326 and 332 of the blades 324 and 330 together define a parallelogram-shaped cutting tool, such as... Figure 18 As shown. In the trimming position, blade 324 (along...) Figure 18The blade 324 is moved upwards (by orientation) to create a cutting effect with the blade 330 and reduce the space defined between the blades 324 and 330 to trim the subject's nails arranged within the trimming space 22. In an illustrative embodiment, in the trimming position, the blade 324 is arranged to extend within the trimming space 22 such that the trimming edge 328 completely overlaps within the blade 330, leaving no opening between the blades 324 and 330. However, in some embodiments, some space may be left between the blades 324 and 330 in the trimming position.

[0112] Although the collective parallelogram cutting tool of blades 324 and 330 is illustratively defined as rhomboid in shape, and more specifically as square, in some embodiments, any suitable parallelogram arrangement between blades 324 and 330 may be applied.

[0113] In the illustrative embodiment, the blade 324 includes a bevel on each of its two portions, the bevel defining a trimming edge 326. Even in addition to each portion of the trimming edge 326 being angled toward each other, the bevels are also arranged to be inclined toward each other. Thus, the bevels illustratively define the entry... Figure 18 The pages are inclined toward each other in the z-direction. Although blade 324 is illustratively flat on the side opposite to that shown (i.e., from the inside of the page facing blade 324), it may have additional bevels in some embodiments. Although in the illustrative embodiment the bevels of blade 324 are identical and opposite to each other, in some embodiments the bevels of each portion may be different from each other.

[0114] In the illustrative embodiment, the blade 330 is flat on the side facing outwards from the page, as... Figure 18 As shown. On the opposite side of the blade 330 (i.e., from the inside of the page towards the blade 330), the blade 330 illustratively includes a bevel on each of its two portions, the bevel defining a trimming edge 332. Even in addition to each portion of the trimming edge 332 being angled toward each other, the bevels are also arranged to be inclined toward each other. Thus, the bevels illustratively enter... Figure 18 The bevels on the page are inclined toward each other in the z-direction. Although in the illustrative embodiment, the bevels of blade 330 are identical and opposite to each other, in some embodiments, the bevels of each portion may be different from each other. Although in the illustrative embodiment, the bevels of blades 324 and 330 are equal in slope, in some embodiments, the bevels of each blade 324 and 330 may be different from each other.

[0115] The trimmer 12, including the trimming system 310, can provide improved trimming, such as improved trimming accuracy and speed, reduced trimming noise, and improved ease of use and / or stability of trimming.

[0116] Although certain illustrative embodiments have been described in detail above, variations and modifications exist within the scope and spirit of this disclosure as described and defined in the appended claims.

Claims

1. A nail trimming device, comprising: A main body for a user's hand to grip, the main body defining a trimming space for receiving the subject's fingernails for trimming; as well as A trimming system comprising at least one trimming blade coupled to the body for movement between a retracted position and a trimming position; In the retracted position, the at least one trimming blade retracts from the trimming space; At the trimming position, the at least one trimming blade extends into the trimming space for trimming; The trimming blade is coupled to the body to move between the retracted position and the trimming position, and the nail trimming device includes a trimming control system that includes a sensor system in a frame within the trimming space to provide detection of the presence of non-shell material within the trimming space to reduce the risk of accidental damage to the non-shell material. The sensor system is configured to generate a magnetic field such that a threshold disturbance of the magnetic field indicates the presence of non-shell material in the trimming space, and the trimming control system then controls an actuator to prevent the trimming blade from moving out of the retracted position in response to the detection of non-shell material in the trimming space.

2. The nail trimming device according to claim 1, wherein the at least one trimming blade includes a trimming edge having a V-shaped arrangement.

3. The nail trimming device according to claim 2, wherein the trimming edge is defined by the beveled portion of the at least one trimming blade.

4. The nail trimming device of claim 3, wherein the trimming edge comprises at least two opposing portions, wherein at least one of the at least two opposing portions is formed by the beveled portion of the at least one trimming blade.

5. The nail trimming device according to claim 1, wherein the nail trimming device includes a central portion, the central portion including a base forming a rigid portion of the body, wherein the central portion includes an indicator.

6. The nail trimming device of claim 5, wherein the indicator includes an LED light fixed to the outside of the base, wherein the indicator is capable of communication when the user is able to perform a trimming operation.

7. The nail trimming device of claim 1, wherein the nail trimming device includes an activation button for a user to activate for trimming.

8. The nail trimming device of claim 1, wherein the trimming blade in the retracted position is the default position of the trimming blade.

9. The nail trimming device according to claim 1, wherein the nail trimming device includes a sensor system, the sensor system including a sensor for detecting the presence of non-shell material within the trimming space.

10. The nail trimming device according to claim 9, wherein the non-shell material is a non-keratin material.

11. The nail trimming device of claim 9, wherein the sensor is a magnetic field sensor configured to generate a magnetic field and detect changes in the magnetic field.

12. The nail trimming device of claim 11, wherein introducing material into the magnetic field causes interference with the magnetic field, the interference being detectable by the magnetic field sensor.

13. The nail trimming device of claim 9, wherein the detection of non-shell materials will alert the user via sound, electrical and / or magnetic sensors.

14. The nail trimming device of claim 9, wherein the sensor is capable of detecting the density and / or thickness of the material within the trimming space, wherein only the detection of the subject's nail shell within the trimming space results in the execution of trimming.

15. The nail trimming device of claim 9, wherein when the non-shell material is within the trimming space, detection of the non-shell material within the trimming space causes trimming to be discontinued, wherein the detection is performed by the sensor measuring the density and / or thickness of the non-shell material relative to the nail shell.

16. The nail trimming device of claim 1, wherein the sensor system is capable of determining whether the non-shell material is within the trimming space to avoid damage to the non-shell material due to accidental trimming.

17. The nail trimming device of claim 16, wherein the detection of non-shell material by the sensor system within the trimming space causes an indicator to warn the user of the presence of non-shell material.

18. The nail trimming device of claim 17, wherein the indicator comprises an LED light configured to emit light to indicate the presence of a non-shell material within the trimming space.

19. The nail trimming device of claim 7, wherein when trimming is permitted, the user is able to actuate the activation button to operate the trimming blade to trim in the trimming space.

20. The nail trimming device according to claim 9, wherein, The pruning control system includes a processor for executing instructions stored in a memory and a communication circuit for transmitting signals according to the instructions of the processor.

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