Patent Application
20210401145
The present disclosure is generally directed to grooming tools for animals and more specifically to nail trimmers for an animal having one or more claws.
Domesticated animals having one or more claws may have difficulty maintaining the claws at a comfortable length. As such, in some instances, an owner of the domesticated animal may provide a device to the animal that the animal can use to naturally maintain their claws. For example, for a feline, the owner may provide a scratch post such that the feline can naturally wear the claw length down to a comfortable length through use of the scratch post.
In other instances, the owner may become actively involved in maintaining a length of the domesticated animal's claws. For example, the owner may cut the claws using a pair of trimming shears. While cutting the claws using shears, the owner may accidentally harm the animal if proper care is not exercised. For example, cutting a claw too short may cause physical pain to the domesticated animal and potentially result in bleeding (also referred to as cutting the quick).
As such, some shears are capable of detecting and indicating a safe cutting length such that the owner does not cut the quick of the domesticated animal. However, the domesticated animal may struggle during the claw trimming process and the owner may still cut the claw too short accidentally. As such, some shears may include a physical stop that prevents the claw from being cut too short. However, given variability amongst the claws of domesticated animals and/or the frequency of cutting the claws, the physical stop may not be equally effective for all domesticated animals (e.g., a user may still cut the quick of their domesticated animal accidentally).
An example of trimming shears for cutting one or more claws of an animal may include a body defining a first handle, a second handle, a guide, a blade, and an indexer. The second handle may be pivotally coupled to the body, wherein the second handle pivots relative to the first handle in a handle plane. The guide may extend from the body and define an aperture for receiving a respective one of the one or more claws of the animal. The blade may extend within a blade plane and be configured to be urged within the blade plane along a blade path between a pre-cut position and a cut position in response to pivotal movement of the second handle relative to the first handle, wherein the blade plane extends transverse to the handle plane. The indexer may be configured to adjust the pre-cut position of the blade relative to the aperture such that a maximum insertion distance of the respective claw within the aperture is at least partially defined by the pre-cut position of the blade.
Another example of trimming shears for cutting one or more claws of an animal may include a body defining a first handle, a second handle, a guide, a blade, and an indexer. The second handle may be pivotally coupled to the body, wherein the second handle pivots relative to the first handle in a handle plane. The guide may extend from the body and define an aperture for receiving a respective one of the one or more claws of the animal, the aperture having a circular shape. The blade may extend within a blade plane and define a cutting edge having an arcuate shape, the blade may be configured to be urged within the blade plane along a blade path between a pre-cut position and a cut position in response to pivotal movement of the second handle relative to the first handle, wherein the blade plane extends perpendicular to the handle plane. The indexer may be configured to adjust the pre-cut position of the blade relative to the aperture such that a maximum insertion distance of the respective claw within the aperture is at least partially defined by the pre-cut position of the blade, the indexer including an indicator configured to provide an indication of an effective opening area of the aperture.
Another example of trimming shears for cutting one or more claws of an animal may include a first body, a second body, and a guide. The first body may have a first handle portion and a first cutting portion. The second body may have a second handle portion and a second cutting portion. A cutting region may be defined between the first and second cutting portions. The second body may be pivotally coupled to the first body such that the first handle portion, the first cutting portion, the second handle portion, and the second cutting portion pivot in a common plane. The guide may be slidably coupled to the first body and configured to slide linearly along a sliding axis that extends substantially parallel to the common plane. The guide may include a receiving surface that is substantially parallel to the common plane, a blade facing surface that is opposite the receiving surface and substantially parallel to the common plane, and a plurality of apertures. The plurality of apertures may extend from the receiving surface and through the blade facing surface. The plurality of apertures may be configured to receive a respective one of the one or more claws.
These and other features and advantages will be better understood by reading the following detailed description, taken together with the drawings, wherein:
The present disclosure is generally directed to trimming shears for cutting (or trimming) a claw of a domesticated animal. The trimming shears include a first handle, a second handle, and at least one blade. Pivotal movement of the first handle relative to the second handle urges the blade between a pre-cut position and a cut position. The transition from the pre-cut position to the cut position being configured to cut a claw positioned in the blade path. The trimming shears may further include a guide for receiving a respective claw and guiding the claw to be positioned within the blade path. In one example, the guide may include a single aperture, wherein an effective opening area of the aperture is adjustable to accommodate a respective claw. In another example, the guide may include a plurality of apertures, each sized for receiving a respective claw size. As such, the guide may generally be described as reducing a risk of accidentally cutting the quick when cutting the claw.
When in the pre-cut position, the blade 108 is positioned along the guide 110 such that a claw received within the aperture 114 is not in cutting contact with the blade 108 (e.g., the blade 108 may be in contact with the claw but has not penetrated the claw). In some instances, when the blade 108 is in the pre-cut position, the blade 108 may partially obscure the aperture 114 (e.g., as shown in
The trimming shears 100 may include an indexer 116 configured to adjust the pre-cut position of the blade 108 relative to the aperture 114. For example, the indexer 116 can be configured to adjust the pre-cut position of the blade 108 such that the blade 108 partially obscures the aperture 114 when in the pre-cut position. As such, the indexer 116 can generally be described as adjusting a maximum insertion distance of a claw within the aperture 114. In other words, a maximum insertion distance of the claw within the aperture 114 is at least partially defined by the pre-cut position of the blade 108. In some instances, the indexer 116 may include an indicator 117 that is configured to provide an indication of the maximum insertion distance for a respective pre-cut position. For example, the indicator 117 may be configured to provide an indication of the effective opening area of the aperture 114 for a respective pre-cut position of the blade 108. In other words, the indicator 117 may provide an indication of an amount of overlap between the blade 108 and the aperture 114 for a respective pre-cut position (e.g., using a numerical scale). In some instances, the indexer 116 can be configured to adjust the blade 108 between two or more predetermined pre-cut positions. For example, the indexer 116 can be configured to adjust the blade 108 between at least four predetermined pre-cut positions (see, e.g.,
In some instances, the indexer 116 can be configured to be rotated by a user. Rotation of the indexer 116 may cause the blade 108 to move relative to the guide 110 and along the blade path 112 such that the pre-cut position is adjusted. In other words, rotation of the indexer 116 may cause a corresponding linear movement of the blade 108, adjusting the pre-cut position of the blade 108. For example, the indexer 116 may include a gear configured to engage a corresponding rack coupled to or defined by the blade 108 such that rotation of the indexer 116 causes a corresponding linear movement of the blade 108. By way of further example, the indexer 116 may include a cam configured to engage (directly or indirectly) a portion of the blade 108 such that rotation of the indexer 116 causes a corresponding linear movement of the blade 108. Additionally, or alternatively, the pre-cut position may be adjusted through the pivotal movement of the second handle 106 relative to the first handle 104. For example, when the blade 108 is at the desired pre-cut position after the pivotal movement, the indexer 116 can be actuated such that the pre-cut position is adjusted to the current position of the blade 108. In this example, the indexer 116 can be configured to be depressed and actuate a blade lock. Actuation of the blade lock adjusts the pre-cut position to the current position of the blade 108.
As shown, the blade 108 defines a cutting edge 118 having an arcuate shape (e.g., a semi-circular or semi-elliptical shape). The arcuate shape may generally correspond to the shape of a claw. As such, when the pre-cut position of the blade 108 is adjusted, the exposed area of the aperture 114 has a generally arcuate shape (e.g., a circular or elliptical shape). This may allow for an improved adjustment of the maximum insertion distance of a respective claw when compared to a configuration where the cutting edge 118 has a linear shape.
As shown, the aperture 114 may have a circular shape. A circular shape may allow for a greater variability of claw sizes to be received within the aperture 114 when the pre-cut position of the blade 108 is adjustable (e.g., when compared to an example where the aperture 114 has an elliptical shape). However, the aperture 114 may have any shape including, for example, an elliptical shape.
The trimming shears 500 include a guide 520 having a receiving (or top) surface 529, a blade facing (or bottom) surface opposite the receiving surface 529, and a plurality of apertures 522 extending from the receiving surface 529 and through the blade facing surface. The blade facing surface and the receiving surface 529 are substantially parallel to (e.g., within 5°, 4°, 3°, 2°, or 1° of parallel) the common plane 511.
The apertures 522 are configured to receive a claw of an animal therein. For example, the guide 520 may include at least four apertures 522. The guide 520 may be configured to be transitioned between a storage position (e.g., as shown in
The guide 520 is slidably coupled to one of the first or second bodies 502 or 504 such that a position of the guide 520, relative to the cutting region 518, can be adjusted. For example, the guide 520 can be slid along the first or second bodies 502 or 504 such that an aperture 522 having a size that corresponds to a claw of an animal to be trimmed is aligned with the cutting region 518. As shown, the guide 520 is configured to slide parallel to a sliding axis 524. The sliding axis 524 can extend substantially parallel to the common plane 511. For example, the guide 520 can be configured to slide along the sliding axis 524 and along (e.g., substantially parallel to) a top surface 521 or 523 of a respective one of the first or second bodies 502 or 504. The top surfaces 521 and 523 of the first and second bodies 502 and 504 may generally be described as the surface of the first and second bodies 502 and 504 that face an animal when inserting a claw into the aperture 522. The sliding axis 524 extends between the first and second handle portions 506 and 510, through a pivot point 525 of the first and second bodies 502 and 504, and between the first and second cutting portions 508 and 512.
The guide 520 is configured to slide linearly along the sliding axis 524. For example, the first body 502 may include a plurality of rails 526 configured to slidably receive the guide 520 therein. In other words, the guide 520 is slidably coupled to the first body 502 using the rails 526. The guide 520 can be configured to form an interference fit with the rails 526 such that movement of the guide 520 within the rails 526 requires exertion of a predetermined amount of force. Additionally, or alternatively, the trimming shears 500 may include an indexer 528 coupled to the first body 502 or the second body 504 and configured to releasably engage a portion of the guide 520. The indexer 528 is configured to retain the guide 520 at a predetermined position. For example, the indexer 528 may include a cam configured to exert a clamping force on the guide 520 such that the guide 520 is retained in a desired position. By way of further example, the indexer 528 may include one or more teeth configured to engage corresponding recesses in the guide 520 such that the guide 520 is retained in a desired position. In some instances, the indexer 528 may include a gear configured to engage a corresponding rack coupled to or defined by the guide 520 such that rotational movement of the gear causes a corresponding linear movement of the guide 520.
In some instances, the guide 520 may be removable from the rails 526. Removal of the guide 520 from the rails 526 allows the guide 520 to be inserted into the rails 526 in a reverse orientation. For example, for a guide 520 having four apertures 522 arranged by size, in a first orientation the smallest two apertures 522 may be capable of being aligned with the cutting region 518 and, when the orientation is reversed to a second orientation, the largest two apertures 522 may be capable of being aligned with the cutting region 518. Such a configuration may allow an overall longitudinal length of the guide 520 to be shortened.
As shown, the first handle portion 806, the first cutting portion 808, the second handle portion 810, and the second cutting portion 812 pivot in a common plane 811. The first and second cutting portions 808 and 812 each define corresponding cutting edges 814 and 816. The cutting edges 814 and 816 may have an arcuate shape. A cutting region 818 is defined between the first and second cutting edges 814 and 816. In other words, the cutting region 818 can generally be described as being defined between the first and second cutting portions 808 and 812. The cutting region 818 is configured to receive a claw therein. When a claw is received within the cutting region 818, the cutting edges 814 and 816 are configured to cut the claw in response to the pivotal movement of the first and second handle portions 806 and 810. In other words, a claw positioned within the cutting region 818 is cut in response to the trimming shears 800 being transitioned from the pre-cut position to the cut position.
The trimming shears 800 include a guide 820 slidably coupled to the first body 802 or the second body 804. The guide 820 has a receiving (or top) surface 821, a blade facing (or bottom) surface 823 opposite the receiving surface 821, and a plurality of apertures 822 extending from the receiving surface 821 and through the blade facing surface 823. The blade facing surface and the receiving surface 821 and 823 are substantially parallel to (e.g., within 5°, 4°, 3°, 2°, or 1° of parallel) the common plane 811.
The apertures 822 are configured to receive a claw of an animal therein. For example, the guide 820 may include at least four apertures 822, each aperture 822 having a different opening size (e.g., diameter). In some instances, the apertures 822 may be arranged according to opening size (e.g., from smallest to largest). Each opening size can correspond to a maximum insertion distance of a claw received therein. For example, a diameter of each of the apertures 822 may measure in range of 0.5 millimeter (mm) to 6.5 mm. By way of further example, a first aperture 822 may have a diameter measuring 2 mm, a second aperture 822 may have a diameter measuring 2.5 mm, a third aperture 822 may have a diameter measuring 3 mm, and a fourth aperture 822 may have a diameter measuring 3.5 mm. By way of still further example, a first aperture 822 may have a diameter measuring 4 mm, a second aperture 822 may have a diameter measuring 4.5 mm, a third aperture 822 may have a diameter measuring 5 mm, and a fourth aperture 822 may have a diameter measuring 5.5 mm. By way of still further example, a first aperture 822 may have a diameter measuring 1.5 mm, a second aperture 822 may have a diameter measuring 2 mm, a third aperture 822 may have a diameter measuring 2.5 mm, and a fourth aperture 822 may have a diameter measuring 3 mm.
In some instances, a measure of a difference in diameter between immediately adjacent apertures 822 may be at least 0.5 mm. For example, a first aperture 822 may have a diameter that measures 1.5 mm and a second, immediately adjacent, aperture 822 may have a diameter that measures 2 mm. While the guide 820 is shown as having four apertures 822, the guide 820 may have any number of apertures 822. For example, the guide 820 may have at least two apertures 822, at least three apertures 822, or any other number of apertures 822.
The guide 820 is configured to be slidable relative to the cutting region 818 such that a respective aperture 822 may be aligned (e.g., centrally aligned) with the cutting region 818. For example, the guide 820 can be configured to slide linearly along a sliding axis 825 that extends substantially parallel to the common plane 811.
In some instances, the guide 820 can be configured to be slidably coupled to the first handle portion 806 of the first body 802. For example, the guide 820 can be slidably received within the first handle portion 806. As shown, an actuator 824 extends from a slot 826 extending along the first handle portion 806, wherein movement of the actuator 824 relative to the slot 826 causes a corresponding movement of the guide 820 relative to the cutting region 818.
As shown, the indexer 1104 is configured to engage with a respective one of a plurality of recesses 1106 defined in the guide 820. The indexer 1104 includes a spring arm 1108 configured to move between a retention position and an adjusting position. As such, in some instances, the indexer 1104 may be spring (e.g., a torsion spring). When in the retention position, at least a portion of the spring arm 1108 is received within a respective recess 1106 defined within the guide 820. The spring arm 1108 is urged towards an adjusting position in response to the actuator 824 urging the guide 820 to slide within the track 1102. When in the adjusting position, the spring arm 1108 is out of engagement with a respective recess 1106 and slidably engages a transition surface 1110 of the guide 820 that extends from the respective recess 1106 (e.g., extends between immediately adjacent recesses 1106).
The spring arm 1108 can include an engagement region 1112 that is configured to be received within the recesses 1106. The engagement region may have a shape that generally corresponds to a shape of the recesses 1106. The shape of the engagement region 1112 and the recesses 1106 may be configured to cooperate such that the spring arm 1108 can be caused to transition from the retention position to the adjusting position in response to the actuator 824 being exposed to a predetermined force exerted along an axis that extends generally along the track 1102. For example, the engagement region 1112 and recesses 1106 may have a triangular shape, an arcuate shape, and/or any other shape configured such that the spring arm 1108 is transitioned from the retention position to the adjusting position in response to the actuator 824 being exposed to a predetermined force exerted along an axis that extends generally along the track 1102.
As shown, the guide 820 includes at least four recesses 1106 and at least four apertures 822, wherein each recess 1106 corresponds to a respective aperture 822 such that, when the engagement region 1112 is received within a corresponding recess 1106, the respective aperture 822 is aligned with the cutting region 818. While the guide 820 is shown as having four recesses 1106, the guide 820 may have any number of recesses 1106. For example, the guide 820 may have at least two recesses 1106, at least three recesses 1106, or any other number of recesses 1106.
While particular embodiments of the present disclosure have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the disclosure. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this disclosure.
