TWM654738U - Adjustment structure of the size of the connecting rod type labor-saving garden shears - Google Patents

Abstract

The invention discloses a structure for adjusting the size of a connecting rod type labor-saving garden shears, comprising: a first handle, a second handle, a second blade, a connecting rod, an elastic member and a control unit. A first blade is arranged at one end of the first handle, a through-notch is arranged near the first blade, the second handle is pivotally connected to the first blade, a set hole and a first sleeve portion are arranged on the second handle, the second blade is inserted into the through-notch of the first handle and pivotally connected to the first blade The second blade body is connected with a second sleeve portion, the connecting rod is pivotally connected between the second handle and the second blade body, the elastic member is sleeved between the first sleeve portion and the second sleeve portion for elastic resistance, the control unit includes a shaft and an operating portion, the shaft is passed through the assembly hole of the second handle, and a slot is provided around the shaft; thereby, the opening angle of the first blade body and the second blade body can be easily adjusted and set, which has the benefits of labor saving, convenience and improved cutting efficiency.

Description

Adjustment structure of the size of the connecting rod type labor-saving garden shears

This invention relates to a gardening shears structure, in particular to a structure for adjusting the size of a connecting rod type labor-saving gardening shears.

Gardening shears are tools frequently used in gardening work. Generally, gardening shears have two handles and two blades. The front ends of the two handles are assembled with the two blades. The two blades are stacked alternately. The middle section is provided with corresponding hinge holes for bolts to pass through and nuts to lock the two blades. The two blades are hinged to each other. When in use, the two handles are used to link the two blades to cut flowers, plants and branches.

The current garden shears further have a compression spring installed between the two grips to provide an opening spring force when the grips are released. However, the configuration of the compression spring also has the problem of laborious operation, which increases the force and load of the hands gripping the two grips, causing the hands to feel tired in a short time. In order to make the operation of the garden shears labor-saving and comfortable, a labor-saving garden shear as shown in the new patent case No. 574844 has appeared on the market, which can reduce and share the resistance of the hand gripping and use, so that it can still feel comfortable and labor-saving when used for a long time.

However, the conventional labor-saving gardening shears can only be held and cut at a fixed opening angle for the user, and cannot be adjusted according to the diameter of the flowers, plants, and branches to be pruned and the size of the user's hands. As a result, ineffective strokes are easily generated during the cutting operation, resulting in a waste of time in the operation, low cutting efficiency, and an inability of the user to hold and apply force smoothly. The convenience and comfort of use are poor, so there is indeed a need for improvement.

The author of this invention, in view of the above-mentioned shortcomings of known labor-saving garden shears, came up with the idea of creating this invention. After much discussion and trial production of samples, as well as many revisions and improvements, this invention was finally launched.

The invention provides a structure for adjusting the size of a connecting rod type labor-saving garden shears, comprising: a first handle, a first blade body is arranged at one end, a through slot is arranged adjacent to the first blade body, a first axial hole is arranged on the first blade body, and a first pivot hole is arranged on one side of the first axial hole; a second handle, a second pivot hole is arranged at one end, the second pivot hole is pivotally connected to the first pivot hole, an assembly hole is arranged adjacent to the second pivot hole, and a first sleeve portion is arranged on the side of the second handle facing the first handle; a second blade body is penetrated through the through slot of the first handle, a second axial hole is arranged on the second blade body, the second axial hole is pivotally connected to the first axial hole, and a first sleeve portion is arranged on one end of the second blade body There is a second sleeve portion opposite to the first sleeve portion; a connecting rod pivotally connected between the second handle and the second blade body; an elastic member sleeved between the first sleeve portion and the second sleeve portion for elastic abutment; and a control unit, including a shaft rod and an operating portion, the shaft rod is passed through the assembly hole of the second handle, a notch is provided on the periphery of the shaft rod, the operating portion is provided at one end of the shaft rod, and the operating portion can be turned to drive the shaft rod to rotate, switching the periphery of the shaft rod or the notch toward the connecting rod, so that when the first blade body and the second blade body are opened, the periphery of the shaft rod or the notch is clamped against the connecting rod to control the opening angle of the first blade body and the second blade body, thereby achieving the purpose of adjusting the size of the opening.

The main purpose of the adjustable size structure of the creative connecting rod type labor-saving garden shears is to reduce the resistance of hand gripping and shearing, and the opening angle of the first blade body and the second blade body can be easily adjusted and set according to the size of the user's hand, so as to achieve labor-saving and convenient shearing work.

Another purpose of the adjustable opening structure of the creative connecting rod type labor-saving garden shears is that the opening angle of the first blade body and the second blade body can be adjusted according to the size of the shearing object so as to avoid ineffective stroke during shearing and improve shearing efficiency.

The following is a further description of the present invention in conjunction with the drawings of the preferred embodiments, in the hope that those familiar with the relevant technologies of the present invention can implement the invention according to the description in this manual.

First, please refer to the first to fifth figures, which show a connecting rod type labor-saving garden shears size adjustment structure, including: a first handle 10, a second handle 20, a second blade 30, a connecting rod 40, an elastic member 50 and a control unit 60.

A first blade body 11 is disposed at one end of the first handle 10, a penetration notch 12 and a coupling groove 13 are disposed adjacent to the first blade body 11, a pivotable clamping member 14 is pivoted in the coupling groove 13, a first axial hole 111 is disposed on the first blade body 11, the first axial hole 111 simultaneously penetrates the first handle 10, and a first pivot hole 112 is disposed on one side of the first axial hole 111 of the first blade body 11.

A second pivot hole 21 and a third pivot hole 22 are provided at one end of the second handle 20, and the second pivot hole 21 is pivotally connected to the first pivot hole 112 of the first blade body 11. An assembly hole 23 is provided near the second pivot hole 21, and the assembly hole 23 is provided between the second pivot hole 21 and the third pivot hole 22. A positioning groove 24 is provided on one side of the second handle 20 corresponding to the assembly hole 23, and a first sleeve portion 25 is provided on the side of the second handle 20 facing the first handle 10.

The second blade body 30 is inserted into the insertion slot 12 of the first handle 10. A second axial hole 31 is provided on the second blade body 30, and the second axial hole 31 is pivotally connected to the first axial hole 111 of the first blade body 11. A second sleeve portion 32 opposite to the first sleeve portion 25 is provided at one end of the second blade body 30, and a fourth pivot hole 33 is provided between the second axial hole 31 and the second sleeve portion 32.

The connecting rod 40 is pivoted between the second handle 20 and the second blade 30. The two ends of the connecting rod 40 are respectively provided with a first connecting hole 41 and a second connecting hole 42. The first connecting hole 41 is pivoted with the third pivot hole 22 of the second handle 20, and the second connecting hole 42 is pivoted with the fourth pivot hole 33 of the second blade 30.

The elastic member 50 is elastically mounted between the first sleeve portion 25 and the second sleeve portion 32. In this embodiment, the elastic member 50 is a compression spring.

The control unit 60 includes a shaft 61, an operating portion 62 and a docking member 63. The shaft 61 is inserted into the assembly hole 23 of the second handle 20 and is fixedly connected with the docking member 63. A notch 611 is provided around the shaft 61. The operating portion 62 is integrally formed at one end of the shaft 61. The operating portion 62 can be turned to drive the shaft 61 to rotate. The operating portion 62 is sleeved in the positioning groove 24 and is restricted by the positioning groove 24 when turned.

When the creative garden shears are used, as shown in the sixth and seventh figures, the operating part 62 of the control unit 60 is turned to drive the shaft 61 to rotate, and the operating part 62 is used to clamp against one side of the positioning groove 24 to form a positioning, so that the notch 611 of the shaft 61 faces the connecting rod 40, so that in the normal state, the clamping member 14 on the first handle 10 is opened, and the elastic force of the elastic member 50 cooperates with the linkage of the connecting rod 40 to make the first blade body 11 and the second blade body 30 open, and the notch 611 of the shaft 61 is clamped against the connecting rod 40, so that the first blade body 11 and the second blade body 30 are opened to form a maximum opening angle θ1, so as to provide a larger hand size and use when shearing larger objects.

When performing shearing operations, the second handle 20 is pulled toward the first handle 10 to drive the connecting rod 40 to pivot and compress the elastic member 50, so that the connecting rod 40 shares the responsibility of overcoming the elastic force of the elastic member 50, thereby reducing the resistance of closing the first handle 10 and the second handle 20, making the operation more comfortable and labor-saving.

When the creative garden shears are folded, as shown in FIG. 8 , the first handle 10 and the second handle 20 are pressed together to control the first blade body 11 and the second blade body 30 to close, and then the clamping member 14 on the first handle 10 is closed, so that the clamping member 14 can be clamped against the second blade body 30 to complete the locking of the first blade body 11 and the second blade body 30 in a closed state, thereby achieving the effect of safe storage.

In addition, as shown in Figures 9 and 10, the operating portion 62 of the control unit 60 is turned to drive the shaft 61 to rotate in the opposite direction, and the operating portion 62 is used to clamp against the other side of the positioning groove 24 to form a positioning, so that the periphery of the shaft 61 faces the connecting rod 40. When the periphery of the shaft 61 is clamped against the connecting rod 40, the first blade 11 and the second blade 30 are opened to form a smaller opening angle θ2, so as to provide use for people with smaller hands and when cutting smaller objects.

The structure of the above specific embodiment can obtain the following benefits:

1. The adjustable opening structure of the connecting rod type labor-saving garden shears of the invention can reduce the resistance of hand gripping and shearing, and the opening angle of the first blade body 11 and the second blade body 30 can be adjusted and set simply by the control unit 60 according to the size of the user's hand, so as to achieve labor-saving and convenient shearing work.

2. The opening size adjustment structure of the connecting rod type labor-saving garden shears of the invention can adjust the opening angle of the first blade body 11 and the second blade body 30 according to the size of the shearing object, so as to achieve the appropriate opening angle for shearing without producing invalid stroke, and has better operating convenience and can improve shearing efficiency.

10: First handle 11: First blade 111: First axial hole 112: First pivot hole 12: Through slot 13: Joint slot 14: Clamp 20: Second handle 21: Second pivot hole 22: Third pivot hole 23: Assembly hole 24: Positioning groove 25: First sleeve 30: Second blade 31: Second axial hole 32: Second sleeve 33: Fourth pivot hole 40: Connecting rod 41: First connecting hole 42: Second connecting hole 50: Elastic member 60: Control unit 61: Axis rod 611: Slot 62: Operation unit 63: Docking member θ1: Maximum opening angle θ2: Smaller opening angle

The first figure is a three-dimensional diagram of this creation. The second figure is a three-dimensional exploded diagram of this creation. The third figure is a three-dimensional diagram of the control unit of this creation. The fourth figure is a cross-sectional diagram of this creation. The fifth figure is an enlarged view of the A1 part of the fourth figure. The sixth figure is a cross-sectional diagram of the maximum opening angle of the first and second blade bodies of this creation. The seventh figure is an enlarged view of the A2 part of the sixth figure. The eighth figure is a schematic diagram of the action of locking and adjusting the control unit in the closed state of this creation. The ninth figure is a cross-sectional diagram of the first and second blade bodies of this creation with a reduced opening angle. The tenth figure is an enlarged view of the A3 part of the ninth figure.

10: First grip

11: First blade body

111: First shaft hole

112: First hinge

12: Drilling notches

13: Binding slot

14: Card parts

20: Second handle

21: Second hinge

22: The third hinge

23: Assembly hole

24: Positioning groove

25: First socket part

30: Second blade body

31: Second shaft hole

32: Second socket connection part

33: The fourth hinge

40: Connecting rod

41: First connection hole

42: Second connection hole

50: Elastic parts

60: Control unit

61: Shaft

611: Missing slot

62: Operation Department

63: Docking parts

Claims (8)

A structure for adjusting the size of a connecting rod type labor-saving garden shears, comprising: A first handle, a first blade body is arranged at one end, a through slot is arranged near the first blade body, a first axial hole is arranged on the first blade body, and a first pivot hole is arranged on one side of the first axial hole; A second handle, a second pivot hole is arranged at one end, the second pivot hole is pivotally connected with the first pivot hole, an assembly hole is arranged near the second pivot hole, and a first sleeve portion is arranged on the side of the second handle facing the first handle; A second blade body is arranged through the through slot of the first handle, a second axial hole is arranged on the second blade body, the second axial hole is pivotally connected with the first axial hole, and a second sleeve portion opposite to the first sleeve portion is arranged at one end of the second blade body; A connecting rod pivotally connected between the second handle and the second blade; an elastic member sleeved between the first sleeve portion and the second sleeve portion for elastic resistance; and a control unit, including a shaft rod and an operating portion, the shaft rod is passed through the assembly hole of the second handle, the shaft rod is provided with a slot around the shaft rod, the operating portion is provided at one end of the shaft rod, and the operating portion can be turned to drive the shaft rod to rotate, switching the shaft rod's periphery or slot toward the connecting rod, so that when the first blade body and the second blade body are opened, the shaft rod's periphery or slot is clamped against the connecting rod to control the opening angle of the first blade body and the second blade body, thereby achieving the purpose of adjusting the size of the opening. As described in claim 1, the adjustment structure of the size of the connecting rod type labor-saving garden shears, wherein the control unit further includes a docking piece, the shaft is penetrated through the assembly hole penetrated through the second handle, and is fixedly docked with the docking piece. As described in claim 1, the size adjustment structure of the connecting rod type labor-saving garden shears, wherein a positioning groove is provided on one side of the second handle corresponding to the assembly hole, and the operating part of the control unit is sleeved in the positioning groove and is restricted and positioned by the positioning groove when turned. The size adjustment structure of the connecting rod type labor-saving garden shears as described in claim 1, wherein the first handle is provided with a coupling groove adjacent to the first blade body, and a rotatable clamping piece is pivoted in the coupling groove. The size adjustment structure of the connecting rod type labor-saving garden shears as described in claim 1, wherein the first axial hole also passes through the first handle. The size adjustment structure of the connecting rod type labor-saving garden shears as described in claim 1, wherein a third pivot hole is set at one end of the second handle, the assembly hole is set between the second pivot hole and the third pivot hole, the second blade body is provided with a fourth pivot hole between the second axial hole and the second sleeve portion, and a first connecting hole and a second connecting hole are respectively provided at both ends of the connecting rod, the first connecting hole is pivotally connected to the third pivot hole of the second handle, and the second connecting hole is pivotally connected to the fourth pivot hole of the second blade body. The size adjustment structure of the connecting rod type labor-saving garden shears as described in claim 1, wherein the elastic member is a compression spring. The adjusting opening size structure of the connecting rod type labor-saving garden shears as described in claim 1, wherein the operating part is integrally formed and arranged at one end of the shaft.

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