WO2015109424A1

WO2015109424A1 - Horticulture shears having switchable operation mode

Info

Publication number: WO2015109424A1
Application number: PCT/CN2014/000251
Authority: WO
Inventors: 林有堂
Original assignee: 林有堂
Priority date: 2014-01-27
Filing date: 2014-03-11
Publication date: 2015-07-30
Also published as: CN203761919U; DE112014006266T5; DE112014006266B4

Abstract

Horticulture shears (10), comprising a first shear blade (20), an actuation arm (30) and a second shear blade (50) pivotally connected to the first shear blade (20), and a linkage arm (70) pivotally connected between the actuation arm (30) and the second shear blade (50); the bottom end of the second shear blade (50) is provided with a slide groove (53) and a plurality of fixing grooves (54) communicating with the slide groove; a switching device (90) is installed in the actuation arm (30); when the switching device (90) is located at the first use position, one end of the linkage arm (70) is fit in one fixing groove (54) adjacent to the top end of the slide groove (53), and cannot slide up and down along the slide groove (53), for shearing twigs; and when the switching device (90) is located at a second use position, one end of the linkage arm (70) slides up and down along the slide groove (53) and is optionally fit in one of the fixing grooves (54), thus switching to another force application pivot to cut bigger branches into pieces.

Description

Gardening shears with switchable operating modes

The invention relates to garden shears, and in particular to a garden shear that can switch modes of operation. current technology

In the case of the current gardening shears, it can be roughly divided into two forms, one of which is to directly drive the two blades to pivot relatively by the force applied by the user to the two grips, so as to achieve the purpose of cutting the leaves. However, this direct shearing design is more suitable for cutting fine branches and leaves. If a large diameter branch is encountered, the user may not be able to cut the coarse branches at a time because the reaction force is too large during the operation. It is often necessary to repeat the operation several times in order to successfully complete the cutting operation, resulting in a rather laborious situation in use.

Another form is to add some special structures and design it into a segmentable cutting mode. In operation, it must be cut according to the segmentation action such as force application, loose release, and re-force, so that it can save effort. Under the condition that the thick branches are cut, but if the design of the segmentation shear is used to trim the fine branches, the same segmentation action is required to complete the cutting operation, which in turn takes a lot of time and increases a lot. inconvenient.

However, since current gardening shears do not have a design that integrates the two structural forms described above, for cost reasons, the user usually only selects one of the gardening shears to use, but no matter which design is used, The user is bound to encounter various operational problems mentioned above and affect the efficiency of the work. Summary of the invention

It is a primary object of the present invention to provide a gardening shear that can switch between two different modes of operation to meet the elastic requirements of the shearing operation.

In order to achieve the above object, the present invention adopts the following technical solutions: a gardening shear capable of switching operation modes, comprising: a first cutting edge; an actuating arm pivotally disposed at the top end of the first cutting edge And having an outer guiding groove; two handles, one of the top ends of the handle is fixed to the bottom end of the first cutting edge, and the other end of the handle is fixed to the bottom end of the working arm; a second cutting edge is pivotally disposed on the first cutting edge and has a sliding slot and a plurality of card slots, wherein the plurality of card slots are disposed side by side on the groove wall of the sliding slot; Having a first pivot end, a second pivot end, and a stop groove, The first pivoting end is pivotally disposed on the actuating arm by a first shaft member, and the second pivoting end is pivotally disposed on the second cutting edge by a second shaft member, and the second shaft member can Slidably disposed in the sliding slot of the second cutting edge and selectively engaged in a card slot of the second cutting edge, the blocking groove being interposed between the first and second Between the pivoting ends and the first pivoting end; an elastic member disposed between the operating arm and the first pivoting end of the linking arm; a switching device having a control pin, a movable plate, and a stop bolt, wherein the control pin is disposed up and down in the outer guide groove of the actuating arm, the movable plate is disposed on the actuating arm and connected to the control plug, a stop bolt is attached to the top end of the movable plate and can be abutted against the first pivot end of the linkage arm or the stop groove of the linkage arm by the pivoting of the actuating arm Inside.

In the above technical solution of the present invention, the switching device further has a first fixing plate and a second fixing plate, wherein the first and second fixing plates are disposed in the operating arm and located on the movable plate. The first fixing plate has a first inner guiding groove, the first inner guiding groove corresponds to the outer guiding groove of the working arm, and the second fixing plate has a second inner guiding groove. The second inner guiding groove corresponds to the first inner guiding groove, and the control plug has a bolt and a sleeve, and the bolt can be vertically displaced to the outer guiding groove of the working arm. The first inner guiding groove of the first fixing plate is disposed in the second inner guiding groove so as to be vertically displaceable.

The top end of the first fixing plate has a first upper guiding groove, and the top end of the second fixing plate has a second upper guiding groove, and the stopping bolt can be disposed on the first and second positions Inside the upper guide groove.

The switching device further has a limiting plate, the limiting plate is disposed on the second fixing plate and has a limiting slot and at least two limiting protrusions, wherein the limiting slot corresponds to the second fixing plate The second inner guiding groove, the two limiting convex portions protrude from the groove wall of the limiting groove relatively, the sleeve has a limiting end portion, and the outer diameter of the limiting end portion a distance greater than the distance between the two limiting protrusions. When the control pin is located at a positioning position, the limiting end of the sleeve is located in the limiting slot of the limiting plate and resists the The second limiting protrusion of the limiting plate, when the control pin is located at a pressing position, the limiting end of the sleeve is disengaged from the limiting slot of the limiting plate and can be disposed up and down The second inner guide groove of the second fixing plate.

The control plug has a push button, the push button is connected to the head end of the bolt and is exposed outside the actuating arm, and the switching device further has a return elastic member, and the reset elastic member is sleeved And the bolt is abutted between the actuating arm and the push button to maintain the control pin in the positioning position.

The bottom end of the first fixing plate has a first lower guiding groove, the bottom end of the second fixing plate has a second lower guiding groove, and the bottom end of the limiting plate has a third lower guiding groove. The bottom end of the movable plate is provided with a guiding bolt, and the guiding pin can be disposed in the first, second and third lower guiding grooves. a third shaft member is disposed at a center of the linkage arm, and a side of the movable panel has a hook portion, and the hook portion can be hooked or detached from the third shaft by moving up and down of the movable panel Pieces.

Advantages of the Invention: With the above design, when the movable plate is driven by the control bolt and is in a first use position, the linkage arm is pulled by the boom during the relative deployment of the two handles to make the second shaft member Engraved at the top end of the chute until the stop bolt abuts against the first pivot end of the linkage arm, and in the process of the two grips being relatively close together, the linkage arm forces the second shaft member to be engaged In a card slot adjacent to the top end of the chute, the second cutting edge is pushed to shear until the twig leaves are sheared once. On the other hand, when the movable panel is driven by the control plug and is in a second use position, the first pivotal end of the linkage arm is pushed by the stopper bolt during the relative deployment of the two grips to force the second The shaft member slides down along the sliding slot, and the linking arm drives the second shaft member to engage in one of the slots during the process of the two grips abutting to push the second cutting edge to cut In this way, the fulcrum can be changed and the coarse branches and leaves can be segmented and sheared. Thus, the present invention can provide the user with two different modes of operation for different thickness of the foliage to meet the elastic requirements of the shearing operation and to increase the efficiency of the shearing operation.

The present invention is suitable for horticultural work, and not only meets the elastic requirements of shearing work in horticultural operations, but also improves the efficiency of shearing operations. DRAWINGS

Figure 1 is a perspective view of the present invention;

Figure 2 is a partial exploded perspective view of the present invention;

Figure 3 is a partial cross-sectional view of the present invention, mainly showing the state in which the control pin is located at the positioning position; Figure 4 is similar to Figure 3, mainly showing the state in which the control pin is in the pressed position;

Figure 5 is a front elevational view of the present invention, mainly showing the state in which the movable panel is in the first use position; Figure 6 is a front view of the present invention, mainly showing the first cutting edge and the second shearing when the movable panel is in the first use position The form in which the blades are mutually extended;

Figure 7 is a front elevational view of the present invention, mainly showing a configuration in which the first cutting edge and the second cutting edge abut each other when the movable plate is in the first use position;

Figure 8 is a front elevational view of the present invention, mainly showing a configuration in which the first cutting edge and the second cutting edge are relatively unfolded when the movable plate is in the second use position;

Figure 9 is a front elevational view of the present invention, mainly showing a state in which the stopper pin is engaged with the stopper groove of the linkage arm when the movable panel is in the second use position;

Figure 10 is a front elevational view of the present invention, mainly showing the state in which the movable panel is in the third use position. Best mode for carrying out the invention

In order to explain the structure, features and effects of the present invention in detail, the following preferred embodiments are described below in conjunction with the accompanying drawings.

As shown in FIG. 1, FIG. 2 and FIG. 5, the garden shear 10 of the present invention comprises a first cutting edge 20, an operating arm 30, two grips 40, a second cutting edge 50, a linkage plate 60, and a The interlocking arm 70, an elastic member 80, and a switching device 90 are attached.

The top end of the first cutting edge 20 has a first blade portion 22, and the first blade portion 22 is provided with a cutting block 24.

The actuating arm 30 is clamped to the first blade portion 22 of the first cutting edge 20 by two opposite clamping plates 31, 32, and the top ends of the two clamping plates 31, 32 are formed by a first pivot 34 and the first cutting edge 20. Pivot. Further, one of the splints 31 has an outer guide groove 33.

The top end of one of the grips 40 is fixed to the bottom end of the first cutting edge 20, and the top end of the other grip 40 is fixed to the bottom end of the actuating arm 30.

The center of the second cutting edge 50 is pivotally coupled to the center of the first cutting edge 20 by a second pivot 51. In addition, the top end of the second cutting edge 50 has a second cutting edge portion 52. The second cutting edge portion 52 abuts the cutting edge 24 of the first cutting edge 20. The bottom end of the second cutting edge 50 has a sliding groove 53 and a chute. The groove wall of 53 is provided with a plurality of card slots 54 which are arranged side by side.

One end of the linking plate 60 extends into the two clamping plates 31, 32 of the operating arm 30 and is pivotally connected with the first cutting edge 20 and the operating arm 30 through the first pivot 34. The other end of the linking plate 60 is connected. The first cutting edge 20 and the second cutting edge 50 are pivotally connected by the second pivot 51.

The linking arm 70 has a first pivoting end 71 and a second pivoting end 72. The first pivoting end 71 of the linking arm 70 extends into the space between the two clamping plates 31, 32 of the operating arm 30 and passes through The first shaft member 11 is pivotally connected to the actuating arm 30. The second pivoting end 72 of the linking arm 70 is clamped to the bottom end of the second cutting edge 50 and passes through a second shaft that is disposed in the sliding slot 53. The piece 12 forms a pivotal connection with the second cutting edge 50. In addition, the linkage arm 70 further has a stopping groove 73. The stopping groove 73 is interposed between the first and second pivoting ends 71, 72 and adjacent to the first pivoting end 71. Moreover, the interlocking arm 70 is A third shaft member 13 is disposed in the center.

As shown in FIG. 5, one end of the elastic member 80 is hooked on a fourth shaft member 14, the fourth shaft member 14 is locked to the actuating arm 30, and the other end of the elastic member 80 is hooked on the first end of the linking arm 70. The pivot end 71 moves the second shaft member 12 toward the tip end of the chute 53 of the second cutting edge 50.

As shown in FIG. 2, the switching device 90 has a first fixing plate 91, a second fixing plate 92, a control plug 93, a movable plate 94, a stopper plug 95, a limiting plate 96, and a reset elasticity. Piece 98, its Medium:

The first and second fixing plates 91, 92 are fixed between the second plates 31, 32 of the actuating arm 30 via the first and fourth shaft members 11, 14. The first fixing plate 91 has a first upper guiding groove 911 at the top end of the first fixing plate 91. The first inner guiding groove 912 has a first inner guiding groove 912. The first inner guiding groove 912 corresponds to the outer guiding groove 33 of the movable arm 30. The bottom end of a fixing plate 91 has a first lower guiding groove 913. In addition, the top end of the second fixing plate 92 has a second upper guiding groove 921 (shown in FIG. 5), and the second upper guiding groove 921 corresponds to the first. The first upper guiding groove 911 of the fixing plate 91 has a second inner guiding groove 922 at the center of the second fixing plate 92, and the second inner guiding groove 922 corresponds to the first inner guiding groove 912 of the first fixing plate 91, and the second fixing The bottom end of the plate 92 has a second lower guiding groove 923, and the second lower guiding groove 923 corresponds to the first lower guiding groove 913 of the first fixing plate 91.

The control pin 93 has a latching member 932. The latching member 932 is disposed between the outer guiding slot 33 of the actuating arm 30 and the first inner guiding slot 912 of the first fixing plate 91. The head end of the latching member 932 is extended. The outer side of the arm 30 is connected to a push button 934. The end of the bolt 932 is screwed with a sleeve 936. The sleeve 936 has a limiting end 938. Thereby, the control pin 93 can move in the axial direction itself when subjected to a pressure, in addition to being able to move up and down when subjected to a thrust.

The movable plate 94 has a hook portion 942 on one side of the linking arm 70. The top end of the movable plate 94 has a third upper guiding groove 944, which is assembled to the first and second fixings by a fifth shaft member 15 during assembly. Between the plates 91 and 92, the fifth shaft member 15 is locked to the operating arm 30 and passes through the first and second fixing plates 91 and 92. In addition, the center of the movable plate 94 is sleeved on the sleeve 936 of the control pin 93. The bottom end of the movable plate 94 is sleeved on a guiding pin 97. The two ends of the guiding pin 97 are respectively engaged with the first fixing plate 91. The first lower guiding groove 913 and the second lower guiding groove 923 of the second fixing plate 92. Thereby, the movable panel 94 can move up and down in synchronization with the control pin 93.

The stopper pin 95 is threaded and fixed to the top end of the movable plate 94 so that the stopper pin 95 can move up and down with the movable plate 94.

The limiting plate 96 is fixed on a side of the second fixing plate 92 toward the movable plate 94. The lower half of the limiting plate 96 has a third lower guiding groove 962, and the third lower guiding groove 962 is inserted by the guiding pin 97. The upper end of the limiting plate 96 has a limiting slot 964. The limiting slot 964 corresponds to the second inner guiding slot 922 of the second fixing plate 92 and is sleeved on the limiting end 938 of the sleeve 936. The groove wall of the bit groove 964 protrudes inwardly from the pair of limiting protrusions 966. As shown in FIG. 3 and FIG. 4, the distance between each pair of the limiting protrusions 966 is smaller than the limiting end 938 of the sleeve 936. The outer diameter. Therefore, when the control pin 93 is not pressed by the external force and is located at a positioning position P4, as shown in FIG. 3, the limiting end portion 938 of the sleeve 936 is located in the limiting slot 964 of the limiting plate 96 and is supported by the limiting plate. The second limiting protrusion 966 of 96 is blocked, so that the control pin 93 cannot move up and down. When the control pin 93 is pressed by an external force and is located at a pressing position P5, as shown in FIG. 4, the limiting end 938 of the sleeve 936 is shown. meeting It is disengaged from the limiting slot 964 of the limiting plate 96 and extends into the second inner guiding slot 922 of the second fixing plate 92, so that the control pin 93 can move up and down.

The rest elastic member 98 is sleeved between the bolt 932 of the control pin 93 and abuts between the clamping plate 31 of the actuating arm 30 and the push button 934 of the control pin 93 for holding the control pin 93 as shown in FIG. Position position P4.

When the user wants to cut the twigs, the button 934 of the control pin 93 is first applied to move the control pin 93 to the pressing position P5 as shown in FIG. 4, and the limit of the sleeve 936 of the control pin 93 is controlled. The end portion 938 can be released from the second inner guiding groove 922 of the second fixing plate 92 by the blocking of the limiting protrusion 966 of the limiting plate 96, and then the movable plate 94 is driven downward by the sleeve 936 of the control pin 93. After moving to a first use position P1 as shown in FIG. 5, the pressure applied to the control pin 93 is released, and the control pin 93 is returned to the positioning position P4 shown in FIG. 3 by the return elastic member 98. The two grips 40 are initially operated to drive the first and second cutting edges 20, 50 to expand relative to each other. During the relative deployment of the two grips 40, the actuator arm 30 continues to pull the linkage arm 70, moving the second shaft member 12 to the top end of the chute 53 and pulling the bottom end of the second cutting edge 50, forcing the second The cutting edge 50 pivots away from the first cutting edge 20 until the stop pin 95 abuts against the first pivot end 71 of the linkage arm 70, between the first and second cutting edges 20, 50. The maximum deployed position, as shown in FIG. 6, can then operate the two grips 40 to drive the first and second cutting edges 20, 50 relatively closed. During the process of the two grips 40 abutting, the operating arm 30 The linkage arm 70 is pushed to move the second shaft member 12 from the top end of the sliding groove 53 into a card slot 54 adjacent to the top end of the sliding groove 53, as shown in FIG. 7, and then continues to the two grips 40. When the force is applied, the linkage arm 70 pushes the second cutting edge 50 through the engagement relationship between the second shaft member 12 and the slot 54 to force the second cutting edge 50 to pivot toward the first cutting edge 20. The fine branches can be sheared at a time until the second blade portion 52 of the second cutting edge 50 abuts against the anvil plate 24 of the first cutting edge 20.

In the case of coarse foliage, the user needs to select the segmentation mode of operation to achieve the purpose of labor saving. In detail, the control pin 93 is first pressed to the pressing position P5 as shown in FIG. 4, and then the movable plate 94 is moved upward by the boss 936 of the control pin 93 to a second use position as shown in FIG. After P2, the pressure applied to the control pin 93 is released, the control pin 93 is returned to the positioning position P4 as shown in FIG. 3, and then the first and second cutting edges 20, 50 are driven by operating the two grips 40. Expand. During the relative deployment of the two grips 40, the stop pin 95 continues to push the first pivot end 71 of the linkage arm 70, causing the second shaft member 12 to slide down the chute 53 and simultaneously push the second shear. The blade 50 pivots away from the first cutting edge 20 until the second shaft member 12 slides to the bottom end of the sliding groove 53, the first and second cutting edges 20, 50 are located at the maximum deployed position, as shown in the figure. 8, then you can operate the two handles 40 to drive the first 1. The second cutting edges 20, 50 are relatively closed. During the process of the two grips 40 abutting, the actuating arm 30 pushes the linking arm 70, so that the second shaft member 12 is engaged with one of the sliding grooves 53. In the slot 54 , when the two grips 40 are continuously urged, the linkage arm 70 pushes the second cutting edge 50 through the engagement relationship between the second shaft member 12 and the slot 54 to make the second cutting edge The second blade portion 52 of the 50 can cut the thick blade into a certain depth but has not been cut until the stop pin 95 is engaged with the stop groove 73 of the linkage arm 70. As shown in FIG. 9, the user cannot continue to the two. The handle 40 is biased, and the user needs to release the force applied to the two grips 40 and simultaneously unfold the two grips 40, so that the second shaft member 12 is moved up and down along the chute 53 and snapped. In the other card slot 54, finally, the two grips 40 are repeatedly urged, released, re-energized, etc. until the coarse branches are completely cut.

On the other hand, in order to avoid the situation of the user or the third person being injured due to accidental unfolding between the first and second cutting edges 20, 50, after the gardening shear 10 is used, the user can After the control pin 93 is operated to the pressing position P5 as shown in FIG. 4, the movable plate 94 is moved up to a third use position P3 by the sleeve 936 of the control pin 93, and the movable plate 94 at this time passes through the hook portion 942. The hook is applied to the third shaft member 13, as shown in Fig. 10, so that the movement of the two grips 40 can be effectively restricted to improve the safety during storage.

In summary, the gardening shear 10 of the present invention can provide the user with two different operating modes for different thickness of the branches by the design of the switching device 90, in order to meet the elastic requirements of the cutting operation and improve the cutting operation. s efficiency. Industrial applicability

The gardening shear provided by the invention can provide the user with two different operation modes for different thickness of the branches and leaves, which not only meets the elasticity requirement of the shearing operation in the gardening operation, but also improves the efficiency of the shearing operation, and thus has a broad Industrial application prospects.

Claims

Rights request

1. A garden shear with switchable operating modes, characterized by containing:

a first scissor blade;

An actuating arm has its top end pivoted on the first cutting edge and has an outer guide groove;

Two handles, the top end of one of which is fixed to the bottom end of the first scissor blade, and the top end of the other handle is fixed to the bottom end of the actuating arm;

A second scissor blade is pivotally mounted on the first scissor blade and has a chute and a plurality of clamping slots, and the plurality of clamping slots are arranged side by side on the groove wall of the chute;

A linkage arm has a first pivot end, a second pivot end, and a stop groove, the first pivot end is pivoted to the actuating arm through a first shaft member, the The second pivot end is pivoted to the second shearing blade through a second shaft. The second shaft is slidably disposed in the slide groove of the second shearing blade and can selectively engage with the second shearing blade. In one of the blocking grooves of the second cutting blade, the blocking groove is between the first and second pivot ends and adjacent to the first pivot end;

An elastic member is provided between the first pivot end of the actuating arm and the linking arm;

A switching device has a control bolt, a movable plate, and a stop bolt. The control bolt is disposed up and down in the outer guide groove of the actuating arm. The movable plate is provided on the actuating arm. And connected to the control bolt, the stop bolt is provided at the top of the movable plate and can abut the first pivot end of the linkage arm through the pivot of the actuating arm or be embedded in the In the blocking groove of the linkage arm.

2. The garden shear with switchable operating modes as claimed in claim 1, characterized in that: the switching device further has a first fixed plate and a second fixed plate, and the first and second fixed plates are arranged on Inside the actuating arm and located on two opposite sides of the movable plate, the first fixed plate has a first inner guide groove, and the first inner guide groove corresponds to the outer guide groove of the actuating arm, so The second fixed plate has a second inner guide groove, the second inner guide groove corresponds to the first inner guide groove, the control bolt has a bolt and a bolt sleeve, and the bolt can move up and down. It is disposed in the outer guide groove of the actuating arm and the first inner guide groove of the first fixed plate, and the bolt sleeve is disposed in the second inner guide groove so as to be displaceable up and down.

3. The garden shears with switchable operating modes according to claim 2, characterized in that: the top of the first fixed plate has a first upper guide groove, and the top of the second fixed plate has a second upper guide groove. Guide groove, the stop bolt is disposed in the first and second upper guide grooves so as to be able to move up and down.

4. The garden shear with switchable operating modes according to claim 2, characterized in that: the switching device further has a limiting plate, and the limiting plate is provided on the second fixed plate and has a limiting plate. Groove with at least Two limiting protrusions, the limiting groove corresponds to the second inner guide groove of the second fixing plate, the two limiting protrusions protrude relatively from the groove wall of the limiting groove, the The bolt sleeve has a limiting end, and the outer diameter of the limiting end is greater than the distance between the two limiting protrusions. When the control bolt is in a positioning position, the limiting end of the bolt sleeve is located in the limiting groove of the limiting plate and resists the two limiting protrusions of the limiting plate. When the control bolt is in a pressing position, the limiting end of the bolt sleeve It is separated from the limiting groove of the limiting plate and is disposed in the second inner guide groove of the second fixing plate so as to be displaceable up and down.

5. The garden shears with switchable operating modes as claimed in claim 4, characterized in that: the control bolt further has a pressing button, and the pressing button is connected to the head end of the bolt and exposed to the actuator. Outside the arm, the switching device further has a return elastic member. The return elastic member is sleeved on the bolt member and abuts between the actuating arm and the pressure button to retain the control bolt. at the position.

6. The garden shear with switchable operating modes according to claim 4, characterized in that: the bottom end of the first fixed plate has a first lower guide groove, and the bottom end of the second fixed plate has a first lower guide groove. Two lower guide grooves, the bottom end of the limiting plate has a third lower guide groove, the bottom end of the movable plate is provided with a guide bolt, the guide bolt can be displaceable up and down on the first and second lower guide grooves. In the second and third lower guide grooves.

7. The garden shears with switchable operating modes as claimed in claim 1, characterized in that: a third shaft is provided in the center of the linkage arm, and a hook is provided on one side of the movable plate, The hook portion can hook or disengage from the third shaft member by moving the movable plate up and down.