TWI533985B - One-handed scissors - Google Patents

Description

One-handed scissors

The present invention primarily discloses a pair of scissors, and more particularly a pair of scissors that can be manipulated to change between a locked position and a released position with one hand.

Please refer to the "Multiple purpose Compound Action snips" patent of U.S. Patent No. 6,189,219, which discloses a pair of scissors including a pair of handles connected by a handle pivot, a pair of cutting blades The cutting blades are respectively attached to the distal portions of the pair of handles by two bolts, and one latch is attached to one of the two bolts and can be engaged with the other bolt. When the latch is clamped to the bolt, the scissors are in a closed position, and the pair of grips cannot pivot to each other with the grip pivot as an axis; conversely, when the latch is disengaged from the bolt, the scissors are located In the open position, the pair of grips can pivot to each other with the grip pivot as an axis to drive the cutting of the cutting edge.

However, when the scissors are used, the user must hold the pair of handles in one hand while the other hand snaps the latches to the bolts so that the scissors are in the closed position. Therefore, the above-mentioned scissors must be operated by both hands in order to change the scissors between the open position and the closed position, thereby causing inconvenience to the user.

In view of the above problems of the prior art, which cannot be effectively solved and overcome, the present applicant has filed this patent application to solve the aforementioned problems.

The technical problem to be solved by the present invention is that conventional scissors cannot be changed between a locked position and a released position using a one-handed operation.

To this end, the present invention provides a one-handed scissors comprising a first handle member, a second handle member, a pivoting device, a pair of cutting members, a limiting member and a latching member. . The first handle member includes a first end and a first grip end, and the first end and the first grip end are respectively located at opposite ends of the first grip member. The second handle member includes a second end, a second grip end and a through hole. The through hole is located between the second end and the second grip end, and the opposite ends of the through hole respectively have a first end The segment is coupled to a second segment that is interconnected with the second segment, the first segment being remote from the second end. The pivoting device is disposed at a first end of the first grip member and a second end of the second grip member such that the first grip member and the second grip member are pivotally connected to each other. Each of the cutting members includes a set end and a blade end, the set end and the blade end are respectively located at opposite ends of each cutting member, and the two sets of the pair of cutting members are respectively connected to the first handle a first end of the piece and a second end of the second grip member. The limiting member is threaded through the first grip member. The latch member is pivotally disposed on the second handle member and is disposed through the through hole. The latch member is pivotable relative to the second handle member to change between a locked position and a released position, and the latch member includes a convex portion And a hook portion, the protrusion portion and the hook portion are respectively located at opposite ends of the latch member, the protrusion portion is exposed to the through hole and selectively moves between the first portion and the second portion, The hook portion is selectively engaged with the restricting member. When the latch member is in the locked position, the convex portion is located in the first section of the through hole, the hook portion is clamped to the restricting member, and the first grip member and the second grip member cannot pivot to each other; The latch is in a release position, the convex portion In the second section of the perforation, the hook portion is disengaged from the restricting member, and the first grip member and the second grip member are pivotable to each other and drive the pair of cutting members to perform a cutting operation.

The one-handed scissors of the present invention further includes a positioning device disposed on the latch member and including a positioning button and a biasing member slidably coupled to the convex portion of the latch member, the biasing member It is disposed between the positioning button and the latch.

The latch further includes a body portion between the convex portion and the hook portion, the convex portion having a first length along the length direction, the body portion having a second length along the length direction, the body portion The second length is greater than the first length.

The body of the latch has at least one abutting surface adjacent to one end of the protrusion, the positioning button includes a pressing portion, a bottom portion and a sleeve hole, and the pressing portion and the bottom portion are respectively formed opposite to the positioning button The two ends of the pressing portion are opposite to the one end of the bottom portion for the user to press, so that the positioning button slides longitudinally relative to the latching member, and the sleeve hole is formed at an end surface of the bottom portion and extends toward the pressing portion. The receiving hole is sleeved on the convex portion of the latching member, and the biasing member is sleeved on the convex portion of the latching member, and the opposite ends of the biasing member respectively abut against the end surface of the bottom portion and the body portion surface.

The positioning button further includes a positioning portion disposed between the pressing portion and the bottom portion, the first portion of the through hole having a first width along a width direction, the width direction being perpendicular to the length direction, The second section of the perforation has a second width in the width direction, the second width being smaller than the first width, and when the latch is in the locking position, the positioning portion of the positioning button is located in the first section of the perforation The latch is in a release position, the pressing portion of the positioning button being located in the second section of the perforation.

The positioning portion of the positioning button has a third width along the width direction, the third width is equal to the first width of the first segment, and the pressing portion of the positioning button has a fourth width along the width direction, the fourth The width is equal to the second width of the second segment.

The convex portion and the body portion of the latch member respectively have a rectangular cross section along the width direction, and the pressing portion, the bottom portion, the sleeve hole and the positioning portion of the positioning button respectively have a rectangular cross section along the width direction, and the biasing member There is a rectangular cross section along the width direction and corresponds to the convex portion of the latch.

The latching member further includes a through hole disposed between the convex portion and the body portion, and a shaft member sequentially passes through the second handle member, a spring and a through hole of the latch member, so that the latch member The latch member is pivotally mounted to the second grip member.

The pair of cutting members are pivotally connected to each other by a pivoting member, and a return spring is disposed between the two ends of the pair of cutting members.

The two ends of the pair of cutting members are respectively connected to the first end of the first grip member and the second end of the second grip member by two screws and two nuts.

The main technical effect of the present invention is that the user can simultaneously hold the first grip end of the first grip member and the second grip end of the second grip member with one hand, and the user can use one hand. Pressing the pressing portion of the positioning button opposite to the one end surface of the positioning portion, so that the positioning button slides longitudinally relative to the convex portion of the latching member, the bottom of the positioning button is close to the two abutting faces of the protruding portion, and The biasing member is compressed by the end surface of the bottom portion and the abutting surface of the body portion. At this time, the pressing portion of the positioning button corresponds to and is located in the first section of the through hole, and The fourth width is equal to the second width of the second section, allowing the user to push the positioning button along the length direction to cause the pressing portion to enter the second section, while the latch member pivots relative to the second grip member And causing the latch to be changed from the locked position to the release position, the pressing portion of the positioning button is located in the second section of the through hole, and the hook portion of the latch is disengaged from the restricting member. The return spring is elastically reset such that the first grip member and the second grip member are away from each other, and the first grip member and the second grip member are arbitrarily pivotable between an open position and a closed position. The pendulum is driven to cut the pair of cutting members.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

10‧‧‧First grip

101‧‧‧ first end

102‧‧‧First holding end

20‧‧‧Second grip

201‧‧‧ second end

202‧‧‧Second grip

21‧‧‧Perforation

211‧‧‧ first section

212‧‧‧Second section

30‧‧‧ pivoting device

31‧‧‧ screws

32‧‧‧ nuts

40‧‧‧Cut parts

401‧‧‧ group connection

402‧‧‧ blade end

41‧‧‧ pivot parts

42‧‧‧Return spring

43‧‧‧Spiral firmware

44‧‧‧ nuts

50‧‧‧Restrictions

60‧‧‧Latch

61‧‧‧ convex

62‧‧‧Hook

63‧‧‧ Body

631‧‧‧Abutment

64‧‧‧through hole

65‧‧‧ shaft parts

66‧‧‧ Spring

70‧‧‧ Positioning device

71‧‧‧ positioning button

711‧‧‧ Pressing Department

712‧‧‧ bottom

713‧‧‧ sockets

714‧‧‧ Positioning Department

72‧‧‧ biasing parts

Figure 1 is a perspective view of a scissors that can be operated by one hand according to the present invention.

Figure 2 is a partial exploded perspective view of Figure 1.

Figure 3: is a partial top view of Figure 1.

Figure 4 is a schematic cross-sectional view showing the use of the one-handed scissors of the present invention, showing the latch in the locked position.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.

Figure 6 is a continuation of Figure 4 showing the positioning button slipping relative to the latch.

Figure 7 is a continuation of Figure 6 showing the latch member pivoting relative to the second grip member and transitioning from the locked position to the released position.

Figure 8 is a continuation of Figure 7 showing the first and second grip members in an open position.

The technology, the means and the efficiencies of the present invention are described in detail with reference to the accompanying drawings.

1 to 8 are a perspective view, an exploded perspective view, and a cross-sectional view of a scissors that can be operated by one hand according to the present invention. The one-handed scissors of the present invention includes a first grip member 10, a second grip member 20, a pivoting device 30, a pair of cutting members 40, a restraining member 50, and a latch member 60. With a positioning device 70. The first handle member 10 and the second handle member 20 are pivotally connected to each other via the pivoting device 30 to be switchable between an open position and a closed position, and the pair of cutting members 40 are respectively connected to the first handle member. 10 and the second handle member 20, the restricting member 50 is disposed on the first handle member 10. The latch member 60 is pivotally disposed on the second handle member 20, and the latch member 60 can be used by a user. The hand is toggled to pivot relative to the second handle member 20 such that the latch member 60 changes between a locked position and a released position. When the latch member 60 is in the locked position, the latch member 60 is latched to the restricting member 50. The first handle member 10 and the second handle member 20 cannot pivot to each other. When the latch member 60 is in the release position, the latch member 60 is disengaged from the restricting member 50. The first grip member 10 and the first member The two grip members 20 can pivot and slide the pair of cutting members 40, and the positioning device 70 is disposed on the latch member 60 such that the latch member 60 cannot be pivotally pivoted relative to the second grip member 20 .

The first handle member 10 includes a first end 101 and a first grip end 102. The first end 101 and the first grip end 102 are respectively located at opposite ends of the first grip member 10.

The second handle member 20 includes a second end 201, a second grip end 202 and a through hole 21. The through hole 21 is located between the second end 201 and the second grip end 202. Each of the opposite ends has a first section 211 and a second section 212. The first section 211 and the second section 212 are interconnected, and the first section 211 is away from the second end. 201, the first section 211 of the through hole 21 has a first width W1 in a width direction, the width direction is perpendicular to the length direction, and the second section 212 of the through hole 21 has a second width W2 along the width direction. The second width W2 is smaller than the first width W1.

The pivoting device 30 is disposed through the first end 101 of the first grip member 10 and the second end 201 of the second grip member 20 such that the first grip member 10 and the second grip member 20 Connected to each other. In the embodiment, the pivoting device 30 includes a screw 31 and a nut 32. The screw 31 and the nut 32 can be screwed to each other.

The pair of cutting members 40 are pivotally connected to each other by a pivot member 41. Each of the cutting members 40 includes a connecting end 401 and a blade end 402. The set of connecting ends 401 and the blade end 402 are respectively located along each cutting member 40. The two ends 401 of the pair of cutting members 40 are respectively connected to the first end 101 of the first handle member 10 and the second handle by two screws 43 and two nuts 44. A second end 102 of the member 20, and a return spring 42 disposed between the two sets of ends 401 of the pair of cutting members 40, such that the first grip member 10 and the second grip are located when the latch member 60 is in the release position The holder 20 is normally in an open position, and when the user grips the first grip end 102 of the first grip member 10 and the second grip end 202 of the second grip member 20, the first grip The first holding end 102 of the piece 10 and the second holding end 202 of the second grip member 20 are changed from the open position to the closed position and the two end ends 402 of the pair of cutting members 40 are brought close to each other to be able to cut one. article.

The restricting member 50 is disposed through the first grip member 10, and the restricting member 50 can be a member capable of penetrating the first grip member 10 such as a shaft, a pin, a screw, or the like.

The latch member 60 is pivotally disposed on the second handle member 20 and extends through the through hole 21 along the length direction. The latch member 60 is pivotable relative to the second handle member 20 between the locked position and the released position. The latch member 60 includes a convex portion 61, a hook portion 62, a body portion 63 and a through hole 64. The convex portion 61 and the hook portion 62 are respectively located at opposite ends of the latch member 60, and the convex portion is convex. The portion 61 is exposed to the through hole 21 and is selectively movable between the first section 211 and the second section 212 due to the pivoting of the latch 60 relative to the second handle member 20, the hook portion 62 is selectively engaged with the restricting member 50. The body portion 63 is located between the convex portion 61 and the hook portion 62. The convex portion 61 has a first length L1 along the length direction, and the body portion 63 is along the length The length direction has a second length L2 that is greater than the first length L1. The body portion 63 has at least one abutting surface 631 adjacent to one end of the convex portion 61. In the present embodiment, the convex portion 61 is located at the center of the body portion 63, so the body portion 63 has two abutting faces 631. They are located on both sides of the convex portion 61.

The latching member 60 further includes a through hole 64 formed between the convex portion 61 and the body portion 63. A shaft member 65 sequentially passes through the second handle member 20, a spring 66 and the same. The through hole 64 of the latch member 60 is such that the latch member 60 is pivotally disposed on the second handle member 20, and one end of the spring 66 is hooked on the body portion 63.

When the latching member 60 is in the locked position, the convex portion 61 is located in the first section 211 of the through hole 21, the hook portion 62 is locked to the limiting member 50, the first handle member 10 and the second handle member 20 can't pivot each other. When the latch member 60 is in the release position, the convex portion 61 is located in the second portion 212 of the through hole 21, and the hook portion 62 is disengaged from the restricting member 50, and the first grip member 10 and the second grip member 20 can The pair of cutting members 40 are pivoted and driven to perform a cutting operation.

The positioning device 70 is disposed on the latch member 60 and includes a positioning button 71 and a biasing member 72. The positioning button 71 is slidably coupled to the convex portion 61 of the latch member 60. The biasing member 72 is disposed at the positioning. Between the button 71 and the latch 60. In the embodiment, the biasing member 72 is a coil spring.

The positioning button 71 includes a pressing portion 711, a bottom portion 712, a sleeve hole 713 and a positioning portion 714. The pressing portion 711 and the bottom portion 712 are respectively formed at opposite ends of the positioning button 71. The pressing portion 711 Conversely, one end of the bottom portion 712 is pressed by the user, so that the positioning button 71 is longitudinally slid relative to the convex portion 61 of the latch member 60. The sleeve hole 713 is formed at an end surface of the bottom portion 712 and faces the pressing portion 711. The sleeve 713 is sleeved on the protrusion 61 of the latch 60. The positioning portion 714 is disposed between the pressing portion 711 and the bottom portion 712. When the latch member 60 is in the locking position, the positioning portion 714 is located. The first section 211 of the perforation 21 is located in the second section 212 of the perforation 21 when the latch 60 is in the release position. The biasing member 72 is sleeved on the convex portion 61 of the latching member 60, and the opposite ends of the biasing member 72 abut against the end faces of the bottom portion 712 and the abutting faces 631 of the body portion 63, respectively. More preferably, the positioning portion 714 of the positioning button 71 has a third width W3 along the width direction, and the third width W3 is equal to the first region. The first width W1 of the segment 211, the pressing portion 711 of the positioning button 71 has a fourth width W4 along the width direction, and the fourth width W4 is equal to the second width W2 of the second segment 212.

In this embodiment, the convex portion 61 and the body portion 63 of the latch member 60 respectively have a rectangular cross section along the width direction, and the pressing portion 711, the bottom portion 712, the sleeve hole 713 and the positioning portion 714 of the positioning button 71 are along the positioning portion 714. The width direction has a rectangular cross section, respectively, and the biasing member 72 has a rectangular cross section along the width direction and corresponds to the convex portion 61 of the latch member 60.

When the latch 60 is in the locked position, the first grip end 102 of the first grip member 10 and the second grip end 202 of the second grip member 20 are close to each other and in the closed position, and the pair of cutting members The return spring 42 between the 40 is compressed by the two screws 43. The positioning portion 714 of the positioning button 71 is located in the first section 211 of the through hole 21, since the second width W2 of the second section 212 is smaller than the first The first width W1 of the segment 211 and the third width W3 of the positioning portion 714, the positioning portion 714 of the positioning button 71 can only be positioned in the first segment 211 of the through hole 21 and cannot move to the second segment. 212, such that the latch 60 cannot be pivoted arbitrarily relative to the second handle member 20, that is, the positioning button 71 is positioned in the first section 211 of the through hole 21.

The user can simultaneously hold the first grip end 102 of the first grip member 10 and the second grip end 202 of the second grip member 20 with one hand, and the user can press the thumb with one hand The pressing portion 711 of the positioning button 71 is opposite to an end surface of the positioning portion 714 such that the positioning button 71 is longitudinally slid relative to the convex portion 61 of the latching member 60, and the bottom portion 712 of the positioning button 71 is close to the two of the convex portion 63. The abutting surface 631, and the biasing member 72 is compressed by the end surface of the bottom portion 712 and the abutting surface 631 of the body portion 63. At this time, the pressing portion 711 of the positioning button 71 corresponds to and is located in the through hole 21 The first section 211, and because the fourth width W4 of the pressing portion 711 is equal to the second width W2 of the second section 212, allows the user to push the positioning button 71 along the length direction, so that the pressing portion 711 Entering the second section 212 while the latch 60 pivots relative to the second handle member 20, causing the latch member 60 to be shifted from the locked position to the release position, the pressing portion 711 of the positioning button 71 being located The second section 212 of the through hole 21 and the hook portion 62 of the latch 60 are disengaged from the restricting member 50. The return spring 42 is elastically reset such that the first handle member 10 and the second handle member 20 are away from each other, and the first handle member 10 and the second handle member 20 are capable of being in an open position and a closed position. They are arbitrarily pivoted to each other to drive the pair of cutting members 40 to perform a cutting operation.

In summary, the one-handed scissors of the present invention are not found in the prior art, so they have the novelty and advancement of patents, and the use value of the industry; the applicants are in accordance with the provisions of the Patent Law. The bureau filed an application for an invention patent.

10‧‧‧First grip

101‧‧‧ first end

20‧‧‧Second grip

201‧‧‧ second end

21‧‧‧Perforation

211‧‧‧ first section

212‧‧‧Second section

30‧‧‧ pivoting device

31‧‧‧ screws

32‧‧‧ nuts

40‧‧‧Cut parts

401‧‧‧ group connection

402‧‧‧ blade end

41‧‧‧ pivot parts

42‧‧‧Return spring

43‧‧‧Spiral firmware

44‧‧‧ nuts

50‧‧‧Restrictions

60‧‧‧Latch

61‧‧‧ convex

62‧‧‧Hook

63‧‧‧ Body

631‧‧‧Abutment

64‧‧‧through hole

65‧‧‧ shaft parts

66‧‧‧ Spring

70‧‧‧ Positioning device

71‧‧‧ positioning button

711‧‧‧ Pressing Department

712‧‧‧ bottom

713‧‧‧ sockets

714‧‧‧ Positioning Department

72‧‧‧ biasing parts

Claims (10)

A single-handed scissors includes: a first handle member including a first end and a first grip end, the first end and the first grip end being respectively located in the first grip An opposite end of the handle; a second handle member including a second end, a second grip end and a perforation between the second end and the second grip end, the perforation The opposite ends respectively have a first section and a second section, the first section and the second section are interconnected, the first section is away from the second end; a pivoting device is worn a first end of the first handle member and a second end of the second handle member, such that the first handle member and the second handle member are pivotally connected to each other; a pair of cutting members, each cutting The assembly includes a set end and a blade end, the set end and the blade end are respectively located at opposite ends of each cutting member, and the two sets of the pair of cutting members are respectively connected to the first grip member An end and a second end of the second grip member; a restricting member penetrating the first grip member And a latch member pivotally disposed on the second handle member and passing through the through hole, the latch member being pivotable relative to the second handle member for changing between a locked position and a released position, the latch member including a convex portion and a hook portion respectively located at opposite ends of the latch member, the convex portion being exposed to the through hole and selectively between the first portion and the second portion Moving, the hook portion is selectively engaged with the restricting member; when the latch member is in the locking position, the convex portion is located in the first portion of the through hole, and the hook portion is clamped to the restricting member, the first grip The handle member and the second grip member are not pivotable to each other; When the latch is in the release position, the projection is located in the second section of the perforation, the hook is disengaged from the restricting member, and the first grip member and the second grip member are pivotable to each other. The one-handed scissors according to claim 1, further comprising a positioning device disposed on the latch and including a positioning button and a biasing member slidably coupled to the latch a convex portion of the member, the biasing member is disposed between the positioning button and the latch member. The one-handed scissors according to claim 2, wherein the latch further comprises a body portion between the convex portion and the hook portion, the convex portion having a first length along the length direction The body has a second length along the length direction, the second length being greater than the first length. The one-handed scissors according to claim 3, wherein the body of the latch has at least one abutting surface adjacent to one end of the protrusion, the positioning button including a pressing portion, a bottom portion and a sleeve hole The pressing portion and the bottom portion are respectively formed at opposite ends of the positioning button, and the sleeve hole is formed at an end surface of the bottom portion and extends toward the pressing portion, and the sleeve hole is sleeved on the convex portion of the latching member. The biasing member is sleeved on the convex portion of the latch member and abuts against the abutting surface of the bottom end surface and the body portion. The one-handed scissors according to claim 4, wherein the positioning button further comprises a positioning portion disposed between the pressing portion and the bottom portion, the first portion of the perforation having a width direction a first width, the width direction being perpendicular to the length direction, the second section of the perforation having a second width along the width direction, the second width being less than the first width, when the latch is in the locked position, The positioning portion of the positioning button is located in the first section of the perforation, and when the latch is in the release position, the pressing portion of the positioning button is located in the second section of the perforation. The one-handed scissors according to claim 5, wherein the positioning portion of the positioning button has a third width along the width direction, the third width being equal to the first width of the first segment, the positioning The pressing portion of the button has a fourth width in the width direction, the fourth width being equal to the second width of the second segment. The one-handed scissors according to claim 5 or 6, wherein the convex portion and the body of the latch have a rectangular cross section in the width direction, and the pressing portion, the bottom portion, the sleeve hole of the positioning button are The positioning portions respectively have a rectangular cross section along the width direction, and the biasing member has a rectangular cross section along the width direction and corresponds to the convex portion of the latch member. The one-handed scissors according to claim 5 or 6, wherein the latch further comprises a through hole disposed between the convex portion and the body, and a shaft member sequentially passes the first portion Two handle members, a spring and a through hole of the latch member, such that the latch member is pivotally disposed on the second handle member. The one-handed scissors according to any one of claims 1 to 5, wherein the pair of cutting members are pivotally connected to each other by a pivot member, and a return spring is disposed between the two ends of the pair of cutting members. . The one-handed scissors according to claim 9, wherein the two ends of the pair of cutting members are respectively connected to the first end of the first grip member and the second grip by two screws and two nuts. The second end of the handle.