TWM503083U - Gardening shears for enhancing shearing efficiency - Google Patents

Description

Gardening shears that improve cutting efficiency

This creation is related to garden shears, especially a garden shear that improves shear efficiency.

Generally, the common gardening shears mainly have two mutually pivoting cutting edges, and a bottom end of each cutting edge is provided with a grip, and the two grips are simultaneously biased by both hands, so that the two grips are close to each other. In the process, the two cutting edges can be simultaneously driven to cut the branches and leaves.

However, after completing a cut, the user needs to pull the two grips outward at the same time to drive the two cutting edges outward, and then the next cutting action can be performed, that is, if the two cutting edges are to be cut once. In the cutting action, the user must perform the unfolding and folding action on the two grips. Such an operation mode is quite laborious under long-term use, and the efficiency is also to be improved.

The main purpose of this creation is to provide a gardening shear which is simple in structure and labor-saving, and can improve the cutting efficiency.

In order to achieve the above object, the garden shear of the present invention comprises two grips, a linkage rod, a first cutting edge, a second cutting edge, and a control unit. The bottom end of the linkage rod is connected to the top end of one of the handles; the first cutting edge has a first blade portion, a linkage portion, and a cantilever portion, and the bottom end of the first blade portion is pivotally connected to the linkage rod a top end of the first blade portion extending from the bottom end of the first blade portion and connected to the top end of the other handle portion, the cantilever portion extending from the inner periphery of the linking portion toward the connecting rod; The second cutting edge has a second blade portion and a receiving portion. The bottom end of the second blade portion is coaxially pivotally connected to the top end of the linking rod and the bottom end of the first cutting edge portion of the first cutting edge. a portion extending from the bottom end of the second blade portion toward the cantilever portion of the first cutting edge and having a groove; the control unit has an arc guiding member and a guiding wheel, the arc guiding One end of the member is fixed to the linkage rod, and the guide wheel is pivotally disposed at an end of the cantilever portion of the first cutting edge and is rotatably disposed on the curved guiding member, the guiding wheel is facing one side of the second cutting edge The guide protrusion is slidably embedded in the groove of the abutting portion of the second cutting edge. Thereby, during the process of the full grip to the full deployment of the two grips, the guide wheel will roll along the curved guide on the one hand, and move along the groove of the second cutting edge on the other hand. And pushing the groove wall of the groove during the moving process, forcing the second cutting edge to perform two shearing operations with respect to the first cutting edge, thereby achieving the purpose of saving labor and improving efficiency.

In the first embodiment of the present invention, the length of the groove of the second cutting edge is greater than half the length of the abutting portion of the second cutting edge, and the curved guiding member has a tooth portion, the guiding wheel has a gear and a wheel cover, the gear is pivotally disposed at an end of the cantilever portion of the first cutting edge and is engaged with a tooth portion of the curved guiding member, the wheel cover is coupled to one side of the gear and has an extension portion The guiding protrusion is provided at an end of the extending portion. Thereby, during the rolling of the gear along the tooth portion of the curved guiding member, the wheel cover synchronously generates a pivot and the groove of the abutting portion of the second cutting edge is pushed by the guiding convex portion The groove enables the first and second cutting edges to perform a shearing action.

In the second embodiment of the present invention, the length of the groove of the second cutting edge is less than half the length of the abutting portion of the second cutting edge, and the top edge of the curved guiding member has a tooth portion. The guide wheel has a gear and a wheel cover. The gear is pivotally disposed at an end of the cantilever portion of the first cutting edge and is engaged with a tooth portion of the curved guiding member. The wheel cover is coupled to one side of the gear and has The guiding protrusion. Thereby, during the rolling of the gear along the tooth portion of the curved guiding member, the wheel cover synchronously generates a pivot and the groove of the abutting portion of the second cutting edge is pushed by the guiding convex portion The groove enables the first and second cutting edges to perform a shearing action.

Please refer to the first and second figures. The garden shear 10 of the first embodiment of the present invention includes two grips 20, a linkage rod 30, a first cutting edge 40, a second cutting edge 50, and a control unit 60. .

The bottom end of the linkage rod 30 is fixed to the top end of one of the grips 20.

The first cutting edge 40 has a first blade portion 41, a linking portion 42, and a cantilever portion 43. The bottom end of the first blade portion 41 is pivotally connected to the top end of the linkage rod 30 by a pivot shaft 44. The linkage portion 42 extends from the bottom end of the first blade portion 41 and is connected to the top end of the other handle 20, and the cantilever The portion 43 extends from the inner periphery of the interlocking portion 42 in the direction of the interlocking lever 30.

The second cutting edge 50 has a second blade portion 51 and an abutting portion 52. The bottom end of the second blade portion 51 is pivotally connected to the top end of the linkage rod 30 and the bottom end of the first blade portion 41 of the first cutting edge 40 by the pivot 44, and the receiving portion 52 is from the bottom end of the second blade portion 51. Extending in the direction of the cantilever portion 43 of the first cutting edge 40 and having a groove 53, the length of the groove 53 is greater than half the length of the abutting portion 52 of the second cutting edge 50 in this embodiment.

The control unit 60 has an arcuate guide 61 and a guide wheel 63. One end of the curved guiding member 61 is fixed to the linkage rod 30, the other end of the curved guiding member 61 extends toward the first cutting edge 40, and the top edge of the curved guiding member 61 has a tooth portion 62; The guide wheel 63 has a gear 64 and a wheel cover 65. The gear 64 is pivotally disposed at the end of the cantilever portion 43 of the first cutting edge 40 and is engaged with the tooth portion 62 of the curved guide member 61. The wheel cover 65 is coaxially coupled to the gear portion. 64 is toward one side of the second cutting edge 50 and has an extending portion 66 and a guiding convex portion 67. The guiding convex portion 67 is disposed at the end of the extending portion 66 and is embedded in the receiving portion 52 of the second cutting edge 50. Inside the groove 53.

It can be seen from the above structure that when the two grips 20 are pulled outward from an initial position P1 toward a deployed position P2, the first cutting edge 40 first drives the gear 64 along the curved guiding member 61 by the cantilever portion 43. Moving away from the direction of the linkage rod 30, as shown in Fig. 2, during the rolling of the gear 64, the wheel cover 65 is simultaneously pivoted, so that the guiding protrusion 67 of the wheel cover 65 simultaneously pushes the second cutting edge 50. The right side groove wall of the groove 53 slides upward along the groove 53 of the second cutting edge 50, whereby the second blade portion 51 of the second cutting edge 50 gradually moves away from the first cutting edge 40. The direction of the first blade portion 41 is pivoted to gradually open between the first blade portion 41 of the first cutting edge 40. When the gear 64 is rolled to the center of the curved guide 61, as shown in Fig. 2, the guiding projection 67 of the wheel cover 65 is also located at the center of the groove 53 of the second cutting edge 50, at this time A maximum opening angle is formed between the first blade portion 41 of the cutting edge 40 and the second blade portion 51 of the second cutting edge 50. When the two grips 20 are continuously pulled outward, the gear 64 continues to move away. The direction of the linkage rod 30 rolls, and the wheel cover 65 continues to pivot with the gear 64. At this time, the wheel cover 65 pushes the left groove of the groove 53 of the second cutting edge 50 by the guiding protrusion 67. The wall slides up the groove 53 so that the second edge portion 51 of the second cutting edge 50 gradually pivots toward the first edge portion 41 of the first cutting edge 40 once the gear 64 rolls to the arc When the end of the guide member 61 is shaped, as shown in FIG. 3, the guiding protrusion 67 of the wheel cover 65 is located at the top end of the groove 53 of the second cutting edge 50, and the two grips 20 at this time are in the deployed position. P2, at this time, the first blade portion 41 of the first cutting edge 40 and the second blade portion 51 of the second cutting edge 50 abut each other to complete the first shearing action.

After completing a shearing action, the two grips 20 are then pushed inwardly from the deployed position P2 toward the initial position P1. During the pushing process, the first cutting edge 40 first drives the gear 64 along the curved guide. The member 61 rolls toward the linkage rod 30. During the rolling of the gear 64, the guiding protrusion 67 of the wheel cover 65 simultaneously pushes the right groove wall of the groove 53 of the second cutting edge 50 and along the second The groove 53 of the cutting edge 50 slides downward to gradually open between the second blade portion 51 of the second cutting edge 50 and the first blade portion 41 of the first cutting edge 40, when the gear 64 rolls to the curved guide At the center of the lead member 61 (as shown in Fig. 2), a maximum opening angle is formed between the first blade portion 41 of the first cutting edge 40 and the second blade portion 51 of the second cutting edge 50, and then The two grips 20 are continuously pushed inwardly, so that the guiding convex portion 67 of the wheel cover 65 continuously pushes the left side groove wall of the groove 53 of the second cutting edge 50 and slides down along the groove 53. The second blade portion 51 of the second cutting edge 50 gradually approaches the first blade portion 41 of the first cutting edge 40. When the two grips 20 are at the initial position P1 as shown in Fig. 1, the first cutting edge 40 is One blade 41 and second It will be completed together by the second shearing operation again between the second edge portion 51 of the blade 50.

As can be seen from the above, the garden shears 10 of the present invention will drive the first and second cutting edges 40, 50 to perform a shearing action when the two grips 20 are pivoted from the initial position P1 to the deployed position P2, and return from the deployed position P2. When the initial position P1 is reached, the first and second cutting edges 40, 50 are again driven to perform a shearing operation, that is, in the process of performing the unfolding and folding of the two grips 20, the first one is driven. The second cutting edge 40, 50 performs two shearing operations, so that compared with the conventional technique, the gardening shear 10 of the present invention is more labor-saving, and the working efficiency can be obviously improved, thereby achieving the present. The purpose of creation.

On the other hand, the present invention may have different variations in structure. As shown in Figures 4 and 5, the length of the groove 73 of the second cutting edge 70 is shortened to be smaller than the second cutting edge 70 in the second embodiment. The half length of the abutting portion 72, and in order to match the length of the groove 73, the wheel cover 83 is structurally omitted from the design of the extension portion, and the guiding convex portion 84 of the wheel cover 83 is directly disposed on the wheel cover 83 toward the second shearing One side of the blade 70, whereby the guiding protrusion 84 of the wheel cover 83 is shortened by half the movement stroke during the rolling of the gear 82 along the curved guiding member 80, thereby reducing the first edge of the first cutting edge The opening angle between the portion 41 and the second blade portion 71 of the second cutting edge 70 further satisfies different usage requirements.

"First Embodiment"
10‧‧‧Garden shears
20‧‧‧Handle
30‧‧‧ linkage rod
40‧‧‧First cutting edge
41‧‧‧ first blade
42‧‧‧ linkage department
43‧‧‧Cantilever
44‧‧‧ pivot
50‧‧‧second cutting edge
51‧‧‧second blade
52‧‧‧Attendance
53‧‧‧ trench
60‧‧‧Control unit
61‧‧‧ Curved guides
62‧‧‧ teeth
63‧‧‧guide wheel
64‧‧‧ Gears
65‧‧‧ wheel cover
66‧‧‧Extension
67‧‧‧Guided convex
P1‧‧‧ initial position
P2‧‧‧Location "2nd embodiment"
70‧‧‧Second cutting edge
71‧‧‧second blade
72‧‧‧Attendance
73‧‧‧ trench
80‧‧‧ curved guides
82‧‧‧ Gears
83‧‧‧ wheel cover
84‧‧‧Guided convex

Fig. 1 is a plan view showing the structure of the first embodiment of the present invention. The second figure is similar to the first figure, and mainly shows a state in which the first opening angle between the first and second cutting edges is maximized. The third figure is similar to the second figure, and mainly shows the state in which the first and second cutting edges abut each other when the two grips are in the deployed position. Figure 4 is a plan view showing the structure of the second embodiment of the present invention. Figure 5 is similar to Figure 4 and mainly shows the state in which the first and second cutting edges abut each other when the two grips are in the deployed position.

20‧‧‧Handle

40‧‧‧First cutting edge

41‧‧‧ first blade

43‧‧‧Cantilever

50‧‧‧second cutting edge

51‧‧‧second blade

52‧‧‧Attendance

53‧‧‧ trench

60‧‧‧Control unit

61‧‧‧ Curved guides

62‧‧‧ teeth

63‧‧‧guide wheel

64‧‧‧ Gears

65‧‧‧ wheel cover

67‧‧‧Guided convex

Claims (5)

A garden shear capable of improving shear efficiency, comprising: two grips; a linkage rod having a bottom end connected to a top end of one of the grips; a first cutting edge having a first edge portion, a linkage portion, and a cantilever portion, the bottom end of the first blade portion is pivotally connected to the top end of the linkage rod, and the linkage portion extends from the bottom end of the first blade portion and is connected to another handle a top end, the cantilever portion extends from the inner periphery of the linking portion toward the linking rod; a second cutting edge has a second blade portion and an abutting portion, and the bottom end of the second blade portion is coaxially pivoted Connected to the top end of the linkage rod and the bottom end of the first blade portion of the first cutting edge, the abutting portion extends from the bottom end of the second blade portion toward the cantilever portion of the first cutting edge and And a control unit having an arc-shaped guide member and a guide wheel, one end of the arc-shaped guide member is fixed to the linkage rod, and the guide wheel is pivotally disposed on the cantilever portion of the first cutting edge The end is slidably disposed on the curved guiding member, and the guiding wheel has a guiding protrusion toward a side of the second cutting edge. The guide protrusion is slidably embedded in the trench by the contact portion of the second cutting blade. The garden shear according to claim 1, wherein the top edge of the curved guide has a toothed portion, the guide wheel has a gear and a wheel cover, and the gear is pivoted to the first shear The end of the cantilever portion of the blade is engaged with the tooth portion of the curved guiding member, and the wheel cover is coupled to one side of the gear and has an extending portion, and the guiding convex portion is disposed at an end of the extending portion. The garden shear of claim 2, wherein the length of the groove of the second cutting edge is greater than half the length of the abutting portion of the second cutting edge. The garden shear according to claim 1, wherein the top edge of the curved guide has a toothed portion, the guide wheel has a gear and a wheel cover, and the gear is pivoted to the first shear The end of the cantilever portion of the blade is engaged with the tooth portion of the curved guide member, and the wheel cover is coupled to one side of the gear and has the guiding protrusion. A garden shear according to claim 4, wherein the length of the groove of the second cutting edge is less than half the length of the abutting portion of the second cutting edge.