Safety device for thinning shears

Abstract

To provide a safety tool for thinning scissors which can be easily retrofitted without applying processing to existing thinning scissors.SOLUTION: A safety tool for thinning scissors comprises: a fitting object part 8 which can be fit to an intersecting pivotal attachment part 7 of thinning scissors B; a handle locking part 10 which protrudes from the fitting object part 8 and is locked to a handle part 9 of the thinning scissors B; and a comb part 11 which protrudes from the fitting object part 8 toward the opposite side of the handle locking part 10 and is provided along a blade edge 2 or a thinning blade edge 4 of the thinning scissors B. The fitting object part 8 comprises: a one-side cover part 12 which is arranged on the outer side of one end part of a pivotal shaft 6 of the intersecting pivotal attachment part 7 of the thinning scissors B; and an other-side cover part 13 which is arranged on the outer side of the other end part of the pivotal shaft 6. A shaft support part 14 which supports the one end part of the pivotal shaft 6 is provided on the one-side cover part 12, and a fastening screw 15 which is brought into pressure-contact with the other end part of the pivotal shaft 6 with a screwing operation is provided on the other-side cover part 13.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention is used by being attached to a comb, and particularly relates to a safety device for a comb that is useful when combing the hair of animals such as dogs and cats.

Background Art

[0002] A general comb includes a first comb body having a finger insertion hole at one end and a linear or gently curved blade edge at the other end, and a second comb body having a finger insertion hole at one end and a comb-like blade edge at the other end, which are cross-axis attached by a pivot shaft.

[0003] This comb has conventionally been used for the purpose of combing the hair of pet animals such as dogs and cats. However, since the skin of dogs and cats is weaker than that of humans, the skin is easily sandwiched between the blade edge and the comb blade edge. In addition, pet animals do not remain stationary during the cutting operation, so the operator (trimmer) has to take great care to perform this cutting operation without damaging the skin of the pet animal, which is not an easy task.

[0004] Therefore, the inventor of the present invention has developed a product to make it possible to easily and safely cut the hair of animals using such a comb. Japanese Utility Model Registration No. 3227299 (Patent Document 1) has been proposed, which can comb the hair while preventing the skin from being sandwiched between the comb blade edges.

[0005] Briefly explaining the animal comb of this Patent Document 1, a comb member having comb teeth is provided on the blade edge side facing the comb blade edge. By cutting the hair while arranging this comb member on the animal's body (skin) side, the animal's skin is suppressed from entering between the blade edge and the comb blade edge, and it is configured to be difficult to damage the animal's skin.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] The present invention was developed with the same objective as the above-mentioned Patent Document 1, and provides a highly practical safety device for thinning shears that allows for the easy addition of a comb section for safety without modifying existing thinning shears. [Means for solving the problem]

[0008] The gist of the present invention will be explained with reference to the attached drawings.

[0009] A safety device A for thinning shears that can be attached to thinning shears B, which consists of a first scissor body 3 having a finger hole 1 on one end and a blade edge 2 on the other end, and a second scissor body 5 having a finger hole 1 on one end and a thinning blade edge 4 on the other end, which are intersected by a pivot shaft 6, It consists of a fitting portion 8 that can be fitted onto the intersecting pivot portion 7 of the thinning shears B, a handle locking portion 10 that protrudes from the fitting portion 8 and locks onto the handle portion 9 of the first scissor body 3 or the second scissor body 5, and a comb portion 11 that protrudes from the fitting portion 8 toward the opposite side of the handle locking portion 10 and is aligned along the blade edge 2 of the first scissor body 3 or the thinning blade edge 4 of the second scissor body 5. The fitted portion 8 comprises a one-sided cover portion 12 disposed on the outside of one end of the pivot shaft 6 of the intersecting pivot attachment portion 7 of the thinning shears B, and a other-sided cover portion 13 disposed on the outside of the other end of the pivot shaft 6. The one-sided cover portion 12 is provided with a shaft support portion 14 capable of supporting one end of the pivot shaft 6, and the other-sided cover portion 13 is provided with a tightening screw 15 that presses against the other end of the pivot shaft 6 by screwing it in. The present invention relates to a safety device for thinning shears, characterized in that the handle locking portion 10 is locked to the handle portion 9 of the first or second scissor body 5 of the thinning shears B, the fitting portion 8 is fitted onto the intersecting shaft attachment portion 7, one end of the pivot shaft 6 is supported by the shaft support portion 14, and the tightening screw 15 is screwed in to press against the other end of the pivot shaft 6, thereby enabling attachment to the thinning shears B.

[0010] Furthermore, the present invention relates to the safety device for thinning shears according to claim 1, characterized in that the comb portion 11 is attached along the blade edge 2 of the first scissor body 3 by locking the handle locking portion 10 to the handle portion 9 of the first scissor body 3 of the thinning shears B, fitting the receiving portion 8 onto the intersecting shaft attachment portion 7, supporting one end of the pivot shaft 6 with the shaft support portion 14, and screwing the tightening screw 15 into contact with the other end of the pivot shaft 6.

[0011] Furthermore, the safety device for thinning shears according to claim 1 is characterized in that the tightening screw 15 is provided with a knob 16 that can be manually screwed in.

[0012] Furthermore, the handle locking portion 10 is configured as a U-shaped locking portion that can lock onto the handle portion 9 of the first scissor body 3 or the second scissor body 5, and thus relates to the safety device for thinning shears according to claim 1. [Effects of the Invention]

[0013] As described above, this invention can be easily attached (retrofitted) to existing thinning shears without any modifications. When cutting pet animal hair with thinning shears fitted with this safety device, the animal's skin is prevented from getting caught between the blade edge and the thinning blade edge by being blocked by the comb portion, thus preventing injury to the pet animal's skin. This makes it an extremely practical safety device for thinning shears.

[0014] Furthermore, the invention described in claim 2 provides a safety device for thinning shears that is even more practical, as it can be reliably attached (retrofitted) to existing thinning shears and provides added safety.

[0015] Furthermore, the invention described in claim 3 provides a safety device for thinning shears that is even more practical, as it can be attached (retrofitted) to existing thinning shears with simple manual operation without the need for tools.

[0016] In addition, in the invention described in claim 4, a handle locking portion that can be easily locked to the handle portion of an existing saw in a state where it is not easily displaced is provided with a simple structure, making it possible to easily achieve design realization and providing a more excellent practical saw safety device with a simple structure.

Brief Description of the Drawings

[0017] [Figure 1] It is a perspective view showing this embodiment. [Figure 2] It is a perspective view showing the usage state of this embodiment. [Figure 3] It is an explanatory enlarged side view with a part cut out showing the attachment structure of this embodiment to the saw. [Figure 4] It is a front view showing this embodiment. [Figure 5] It is a rear view showing this embodiment.

Mode for Carrying Out the Invention

[0018] The optimal embodiment of the present invention will be briefly described based on the drawings to show the operation of the present invention.

[0019] The saw safety device A of the present invention includes a fitting portion 8 that can be fitted to the intersecting shaft mounting portion 7 of the saw B, a handle locking portion 10 that projects from this fitting portion 8 and is locked to the handle portion 9 of the first saw body 3 or the second saw body 5 of the saw B, and a comb portion 11 that projects from the fitting portion 8 toward the opposite side of the handle locking portion 10 and is provided along the blade edge 2 of the first saw body 3 or the saw blade edge 4 of the second saw body 5 of the saw B. The fitting portion 8 includes a one-side covering portion 12 disposed outside one end portion of the pivot shaft 6 of the intersecting shaft mounting portion 7 of the saw B, and a other-side covering portion 13 disposed outside the other end portion of the pivot shaft 6. The one-side covering portion is provided with a shaft support portion 14 for supporting one end portion of the pivot shaft 6, and the other-side covering portion is provided with a tightening screw 15 that presses against the other end portion of the pivot shaft 6 by screwing operation.

[0020] This sickle safety device A locks the handle locking part 10 to the handle part 9 of the sickle B (the first sickle body 3 or the second sickle body 5), fits the fitting part 8 into the cross-axis attachment part 7 of the sickle B, supports one end part of the pivot shaft 6 on the shaft support part 14, and is attached (retroactively attached) to the sickle B by screwing the tightening screw 15 and pressing this tightening screw 15 against the other end part of the pivot shaft 6. In this attached state, the comb part 11 is provided along the cutting edge 2 of the first sickle body 3 or the sickle cutting edge 4 of the second sickle body 5.

[0021] That is, there is no need to perform any processing on the sickle B. After locking the handle locking part 10 to the handle part 9 of the sickle B, the sickle safety device A of the present invention can be attached (retroactively attached) to the sickle B by a simple operation of fitting and tightening the fitting part 8 onto the pivot shaft 6 of the cross-axis attachment part 7 of the sickle B.

[0022] When a finger is inserted into the finger hole 1 of the sickle B to which the sickle safety device A of the present invention is attached and a cutting operation is performed, the handle locking part 10 is locked to the handle part 9 of the first sickle body 3 or the second sickle body 5 of the sickle B, so that the sickle safety device A of the present invention moves together with the handle part 9 of the first sickle body 3 or the second sickle body 5, and the comb part 11 protruding toward the opposite side of the handle locking part 10 also moves together with the cutting edge 2 or the sickle cutting edge 4 while being provided along the cutting edge 2 of the first sickle body 3 or the sickle cutting edge 4 of the second sickle body 5.

[0023] The sickle B to which the sickle safety device A of the present invention is attached can be used, for example, to cut the hair of a pet animal. At this time, when the comb part 11 is arranged on the side of the body (skin) of the pet animal and the hair cutting operation is performed, the skin of the animal is prevented from being blocked by the comb part 11 and entering between the cutting edge 2 and the sickle cutting edge 4 during cutting, and the hair of the pet animal can be combed without damaging the skin of the pet animal.

Embodiment

[0024] Specific embodiments of the present invention will be described based on the drawings.

[0025] First, let's describe the thinning shears B shown in the diagram. As shown in Figure 2, the first metal shear body 3, which has a finger hole 1 at one end and a blade edge 2 at the other end, and the second metal shear body 5, which has a finger hole 1 at one end and a thinning edge 4 at the other end, are connected by a pivot shaft 6. The first and second shear bodies 3 and 5 are integrally molded in a shape where one end has a thin rod-shaped handle 9 with the finger hole 1 connected to the tip of the handle 9, and the other end has a strip-shaped blade plate 24. The blade edge 2 is formed on the inner edge of the blade plate 24 of the first shear body 3 (the edge facing the blade plate 24 of the second shear body 5), and the thinning edge 4 is formed on the inner edge of the blade plate 24 of the second shear body 5 (the edge facing the blade plate 24 of the first shear body 3).

[0026] Next, the safety device A for thinning shears in this embodiment will be described. As shown in Figure 1, it consists of a fitting portion 8 that can be fitted onto the intersecting pivot portion 7 of the thinning shears B, a handle locking portion 10 that protrudes from the fitting portion 8 and locks onto the handle portion 9 of the first scissor body 3, and a comb portion 11 that protrudes from the fitting portion 8 toward the opposite side of the handle locking portion 10 and runs along the blade edge 2 of the first scissor body 3.

[0027] Specifically, the fitted portion 8 comprises a one-sided cover portion 12 disposed on the outside of one end of the pivot shaft 6 of the intersecting pivot attachment portion 7 of the thinning shears B, a other-sided cover portion 13 disposed at a distance from the one-sided cover portion 12 and substantially parallel to it, and disposed on the outside of the other end of the pivot shaft 6, and a middle plate portion 17 disposed between the one-sided cover portion 12 and the other-sided cover portion 13, and connected to the one-sided cover portion 12 and the other-sided cover portion 13 at substantially right angles.

[0028] More specifically, the fitted portion 8 is constructed, for example, by bending a metal plate into a roughly U-shape. The intermediate plate portion of this fitted portion 8 is configured as the middle plate portion 17, which has a plate surface parallel to the axial direction of the pivot shaft 6 when the fitted portion 8 is fitted onto the intersecting pivot attachment portion 7 of the thinning shears B. The plate portion that bends and protrudes at roughly right angles from one end of the middle plate portion 17 is configured as the one-side cover portion 12, and the plate portion that bends and protrudes at roughly right angles from the other end of the middle plate portion 17 is configured as the other-side cover portion 13.

[0029] Furthermore, the one-sided cover portion 12 is provided with a shaft support portion 14 capable of supporting one end of the pivot shaft 6, and the other-sided cover portion 13 is provided with a tightening screw 15 that presses against the other end of the pivot shaft 6 by a screwing operation.

[0030] The shaft support portion 14 is described as a through hole into which one end of the pivot shaft 6 of the thinning shears B can be inserted and supported. Furthermore, the thinning shears B is described in more detail here, and the pivot shaft 6 of the crossed shaft attachment portion 7 is made up of shaft components in which both ends are hemispherical, and the hemispherical end of this pivot shaft 6 is inserted into and supported by the shaft support portion 14 (see Figure 3).

[0031] The tightening screw 15 is screwed into a screw hole (female thread) 18 formed through the other side cover portion 13 (see Figure 3(b)).

[0032] Furthermore, the tightening screw 15 is configured with a disc-shaped knob 16 fitted and fixed to one end, which allows the tightening screw 15 to be manually screwed in. The tip of the tightening screw 15 (the end opposite the knob 16) is screwed into the screw hole 18 from the outside of the other side cover 13, and the tip of the tightening screw 15 moves toward and away from the one side cover 13 (the shaft support 14) by rotating (screwing) the knob 16 in the forward and reverse directions (see Figure 3).

[0033] Furthermore, the tip of the tightening screw 15 is provided with a disc-shaped synthetic resin bearing portion 31, which is configured to press against the other end of the pivot shaft 6 without damaging the other hemispherical end of the pivot shaft 6.

[0034] Specifically, the handle locking portion 10 is locked to the handle portion 9 of the first scissor body 3 of the thinning shears B, the fitted portion 8 is fitted onto the cross-axis mounting portion 7, and one end of the pivot shaft 6 is supported by the shaft support portion 14 (see Figure 3(a)). At the same time, the knob portion 16 is screwed in the tightening direction (arrow direction in Figure 3(b)) to press the shaft contact portion 31 at the tip of the tightening screw 15 against the other end of the pivot shaft 6, thereby clamping the fitted portion 8 onto the cross-axis mounting portion 7 (pivot shaft 6) of the thinning shears B (see Figure 3(b)), and the thinning shear safety device A is attached to the thinning shears B. Furthermore, by screwing the knob portion 16 in the loosening direction from this attached state, the clamping state of the fitted portion 8 onto the cross-axis mounting portion 7 is released, and the thinning shear safety device A can be separated from the thinning shears B.

[0035] The handle locking portion 10 of this embodiment will be described as follows: The plate material constituting the one-sided cover portion 12 of the fitted portion 8 has a strip portion 19 integrally projecting outward from one end adjacent to the middle plate portion 17. The protruding tip of this strip portion 19 is formed in a bifurcated U-shaped frame that protrudes toward the other-sided cover portion 13, and this U-shaped tip is configured as the handle locking portion 10 that can lock onto the handle portion 9 of the first scissor body 3 by sandwiching it. When the thinning shear safety device A is brought close to the thinning shears B from the axial outside of the pivot shaft 6, the handle locking portion 10 is configured to lock onto the handle portion 9 of the first scissor body 3 by sandwiching it (see Figure 2).

[0036] Although not shown in the diagram, it is also possible to attach the safety device A for the thinning shears to the thinning shears B by locking the handle locking part 10 to the handle part 9 of the second scissor body 5.

[0037] The comb portion 11 of this embodiment is configured such that a large number of thin, rod-shaped comb teeth 21 are arranged in parallel along the length of the rod-shaped base 20, in a direction perpendicular to the length of the rod-shaped base 20.

[0038] Furthermore, the comb portion 11 has numerous comb teeth 21 arranged in parallel from one end to the middle of the rod-shaped base 20, and the other end of the rod-shaped base 20 without the comb teeth 21 is attached to the one-sided cover portion 12 of the fitted portion 8.

[0039] To explain in more detail the attachment structure of the comb portion 11 to the one-side cover portion 12, an extension plate portion 22 is integrally provided protruding outward from the end of the one-side cover portion 12 opposite to the strip plate portion 19 (the other end of the one-side cover portion 12 adjacent to the middle plate portion 17). This extension plate portion 22 is provided with an attachment cylinder portion 23 that is arranged on the outside of the blade plate portion 24 of the blade edge 2 of the first scissor body 3, approximately parallel to the blade plate portion 24, when the fitting portion 8 is fitted onto the thinning scissor B while the handle locking portion 10 is locked onto the handle portion 9 of the first scissor body 3 of the thinning scissor B. The other end of the rod-shaped base 20 of the comb portion 11 is inserted and attached to this attachment cylinder portion 23, thereby attaching the comb portion 11 to the one-side cover portion 12.

[0040] Furthermore, the mounting cylinder portion 23 is provided such that its length coincides with the length of the safety device A for the thinning shears, and the comb portion 11 (in which the rod-shaped base 20 is inserted and attached) is mounted in the mounting cylinder portion 23 such that the rod-shaped base 20 is positioned outside the blade plate portion 24 of the first scissor body 3, approximately parallel to the blade plate portion 24, and the comb teeth 21 are positioned opposite the thinning blade edge 4 of the second scissor body 5.

[0041] Furthermore, each comb tooth 21 of the comb section 11 is configured to have a length such that its tip protrudes outward from the outer edge of the blade section 24 of the second scissor section 5 when the first scissor section 3 and the second scissor section 5 (the blade section 24 of the second scissor section) are closed (see Figure 4).

[0042] Furthermore, in this embodiment, the safety device A for thinning shears is provided such that the comb portion 11 (the other end of the rod-shaped base 20) can be detachably attached to (inserted into) the mounting cylinder portion 23 (provided on the extension plate portion 22 of the one-sided covering portion 12) of the fitting portion 8.

[0043] Specifically, the extension plate portion 22 is bent at the connection point with the one-side cover portion 12 and positioned further outward from the other-side cover portion 13 than the one-side cover portion 12. A mounting base plate 25 made of a thin metal plate is fixed to the plate surface of the extension plate portion 22 on the other-side cover portion 13 side by welding or other appropriate fixing means. Furthermore, a cylindrical component plate 26 made of a thin metal plate with a U-shaped cross-section and having a length equal to the extension length of the extension plate portion 22 is fixed to the lower part of the mounting base plate 25 by welding or other appropriate fixing means. The lower part of the mounting base plate 25 and the cylindrical component plate 26 form a cylindrical portion with a square cross-section, and this square cylindrical portion constitutes the mounting cylindrical portion 23.

[0044] Furthermore, the extension plate portion 22 has a notch cut out in the middle in the extension direction to form a notched window 27 with an open bottom (see Figure 5), while the portion of the mounting base plate 25 corresponding to the notched window 27 is cut out in the shape of a vertically elongated strip, and the cut-out tip of this cut-out piece 28 is bent into a U-shaped cross-section that surrounds the cylindrical component plate 26, and the bent tip of this cut-out piece 28 is configured as a push-operation piece portion 29.

[0045] Furthermore, a small pressure-contacting projection 30 is formed on the portion of the cut-out piece 28 that constitutes the mounting cylinder portion 23 (the surface facing the cylinder component plate 26), and under normal conditions, this pressure-contacting projection 30 is configured to press against the outer circumferential surface of the rod-shaped base 20 of the comb portion 11 that is inserted into the mounting cylinder portion 23. This pressure contact of the pressure-contacting projection 30 is configured to position the rod-shaped base 20 (comb portion 11) in a state where it cannot slide relative to the mounting cylinder portion 23. Furthermore, while the comb portion 11 is positioned by the pressure contact of the pressure contact projection 30, if the push operation piece 29 is pushed with a finger in the direction of the arrow in Figure 3(a), the cutting piece 28 elastically deforms, causing the pressure contact projection 30 to separate from the outer surface of the rod-shaped base 20. This releases the pressure contact positioning state of the rod-shaped base 20, allowing the comb portion 11 to slide relative to the mounting cylinder portion 23 in the direction of the arrow in Figure 4 to adjust its position relative to the fitted portion 8 (for example, as shown, the position of the comb portion 11 is adjusted so that the position of the outermost comb tooth 21 of the comb portion 11 aligns with the tip position of the blade plate portion 24 of the first scissor body 3). The comb portion 11 can also be removed from the mounting cylinder portion 23 (fitted portion 8) for maintenance or replacement.

[0046] In this embodiment, the handle locking portion 10 is locked to the handle portion 9 of the first scissor body 3 of the thinning shears B, the fitted portion 8 is fitted onto the intersecting shaft attachment portion 7, one end of the pivot shaft 6 is supported by the shaft support portion 14, and the tightening screw 15 is screwed in to press the shaft contact portion 31 at the tip of the tightening screw 15 against the other end of the pivot shaft 6, thereby attaching the comb portion 11 to the thinning shears B in a state where it is along the blade edge 2 (blade plate portion 24) of the first scissor body 3 and the comb teeth 21 of the comb portion 11 are facing the thinning blade edge 4 of the second scissor body 5.

[0047] When the thinning shears B to which the thinning shears safety device A is attached are used, inserting a finger into the finger hole 1 and performing a cutting operation, the handle locking part 10 is locked to the handle part 9 of the first scissor body 3 of the thinning shears B, causing the thinning shears safety device A to move together with the handle part 9 of the first scissor body 3. The comb part 11, which is projecting toward the opposite side of the handle locking part 10, also moves together with the blade edge 2 of the first scissor body 3 while remaining aligned with the blade edge 2.

[0048] This thinning shears B, to which the safety device A for thinning shears is attached, can be used to cut the hair of pet animals. When doing so, by positioning the comb portion 11 on the side of the pet animal's body (skin) and performing the hair cutting work, the animal's skin is prevented from getting caught between the blade edge 2 and the thinning blade edge 4 by being blocked by the comb portion 11, and the pet animal's hair can be thinned without damaging the pet animal's skin.

[0049] Furthermore, the present invention is not limited to this embodiment, and the specific configuration of each constituent element can be designed as appropriate. [Explanation of symbols]

[0050] 1 Finger hole 2 Edge 3 First scissor body 4. Thinned edge 5 Second scissor body 6 Pivot axis 7 Cross shaft attachment part 8 Fitted part 9 Handle 10 Handle locking part 11 Comb part 12 One side cover 13 Other side covering part 14 Shaft support part 15 Tightening screws 16. Thumb part A Safety Comb B. Thinning shears

Claims

1. A safety device for thinning shears that can be attached to thinning shears, comprising a first scissor body having a finger hole on one end and a cutting edge on the other end, and a second scissor body having a finger hole on one end and a thinning edge on the other end, which are intersected by a pivot shaft, It consists of a fitting portion that can be fitted onto the intersecting pivot portion of the thinning shears, a handle locking portion that protrudes from the fitting portion and engages with the handle portion of the first or second shear body, and a comb portion that protrudes from the fitting portion toward the opposite side of the handle locking portion and is positioned along the blade edge of the first shear body or the thinning blade edge of the second shear body. The fitted portion comprises a one-sided cover portion disposed on the outside of one end of the pivot shaft of the cross-axis attachment portion of the thinning shears, and a other-sided cover portion disposed on the outside of the other end of the pivot shaft, wherein the one-sided cover portion is provided with a shaft support portion capable of supporting one end of the pivot shaft, and the other-sided cover portion is provided with a tightening screw that presses against the other end of the pivot shaft by screwing operation. A safety device for thinning shears, characterized in that the handle locking portion is locked to the handle portion of the first or second scissors body of the thinning shears, the fitting portion is fitted onto the cross-axis attachment portion, one end of the pivot shaft is supported by the shaft support portion, and the tightening screw is screwed in to press against the other end of the pivot shaft, thereby enabling attachment to the thinning shears.

2. The safety device for thinning shears according to claim 1, characterized in that the handle locking portion is locked to the handle portion of the first scissor body of the thinning shears, the fitted portion is fitted onto the intersecting shaft attachment portion, one end of the pivot shaft is supported by the shaft support portion, and the tightening screw is screwed in to press against the other end of the pivot shaft, thereby enabling the comb portion to be attached along the blade edge of the first scissor body.

3. The safety device for thinning shears according to claim 1, characterized in that the tightening screw is provided with a knob that can be manually screwed in.

4. The safety device for thinning shears according to claim 1, characterized in that the handle locking portion is configured as a U-shaped locking portion that can lock onto the handle portion of the first or second scissor body.

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