TW201526786A - Gardening shear capable of switching operation mode - Google Patents

Abstract

A gardening shear comprises a first shear blade, an actuation arm pivoted to the first shear blade, a second shear blade pivoted to the first shear blade, and a linking arm pivoted between the actuation arm and the second shear blade. The second shear blade has a bottom end provided with a sliding slot and a plurality of engaging slots communicated with the sliding slot. A switch device is installed in the actuation arm. As the switch device is located at a first usage place, one end of the linking arm is embedded in one engaging slot that is adjacent to a top end of the sliding slot so as to stop the linking arm from upward-downward sliding along the slide slot, thus enable the shear to perform a primary shearing operation on leaves of twigs. As the switch device is located at a second usage place, one end of the linking arm is allowed to slide both in upward and downward directions and be embedded in one of the engaging slots optionally, thereby changing the fulcrum of applied force to perform a stage cutting operation on leaves of stubby branches.

Description

Gardening shears with switchable operation mode

The invention relates to garden shears, and more particularly to a garden shear that can switch modes of operation.

In the case of the current gardening shears, it can be roughly divided into two aspects, one of which is to directly drive the two blades to pivot relatively by the force applied by the user to the two grips to achieve the cutting of the branches and leaves. Purpose, but this direct shearing design is more suitable for cutting fine branches and leaves. If the branches and leaves with thicker diameter are encountered, the user will not be able to cut the thick branches and leaves at one time because the reaction force is too large during the operation. Broken, often need to be repeated several times in order to successfully complete the cutting operation, resulting in a very laborious situation in use.

Another aspect is to install some special structures and design them into a segmentable shearing operation 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. In the case of cutting the thick branches, but if you use this one-stage cutting design to trim the fine branches, you also need to follow the above-mentioned segmentation action to complete the cutting operation, which will take a lot of time to increase. Many inconveniences.

However, since current gardening shears do not have the design of integrating the two structural aspects mentioned above, for cost considerations, users usually only choose one of the gardening shears to use, but no matter which design is used, use Will inevitably encounter the various operational problems mentioned above. The efficiency of the work.

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 foregoing object, the garden shear of the present invention comprises a first cutting edge, an actuating arm, two grips, a second cutting edge, a linking arm, an elastic member, and a switching device. The top end of the actuating arm is pivotally disposed on the first cutting edge; the top ends of the two grips are respectively fixed to the bottom end of the first cutting edge and the bottom end of the operating arm; the second cutting edge is pivoted on the first The cutting edge has a sliding slot, and the slot wall of the sliding slot is provided with a plurality of card slots arranged side by side; the linking arm has a stopping slot, a first pivoting end, and a second pivoting end, the first The second pivoting end is pivotally disposed on the second cutting member by a second shaft member, and the second pivoting member is pivotally disposed on the second cutting member. Slidably disposed in the sliding slot of the second cutting edge and optionally engaged in the slot of the second cutting edge; the elastic member is coupled to the first pivoting of the operating arm and the linking arm Between the ends, the elastic force is applied to the linkage arm to move the second shaft member of the linkage arm toward the top end of the sliding slot of the second cutting edge; the switching device has a control bolt, a movable panel, and a blocking gear a stop bolt, the control plug is vertically displaceably disposed in the outer guide groove of the actuating arm, the movable plate is disposed on the actuating arm and is connected to the control plug, and the stop bolt is disposed in the live The top plate.

With the above design, when the movable panel is driven by the control plug and is in a first use position, the linkage arm is pulled by the actuator arm during the relative deployment of the two grips to make the second shaft Inserting a clip on the top end of the chute until the stop bolt abuts against the first pivot end of the linkage arm, During the process of the two grips being in abutment, the linkage arm forces the second shaft member to be engaged in a slot adjacent to the top end of the chute for pushing the second cutting edge to cut Until the twigs are cut 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 stop bolt during the relative deployment of the two grips. Forcing the second shaft member to slide down along the sliding slot, and the linking arm will engage the second shaft member in one of the slots during the relative abutment of the two grips. The second cutting edge is used for shearing, and the repeated operation can change the fulcrum and perform the segmental shearing action on the coarse branches.

10‧‧‧Garden shears

11‧‧‧First shaft

12‧‧‧Second shaft parts

13‧‧‧ Third shaft

14‧‧‧4th shaft

15‧‧‧5th shaft

20‧‧‧First cutting edge

22‧‧‧ first blade

24‧‧‧Chopping board

30‧‧‧Betting arm

31, 32‧‧‧ splint

33‧‧‧outer channel

34‧‧‧First pivot

40‧‧‧Handle

50‧‧‧second cutting edge

51‧‧‧Second pivot

52‧‧‧second blade

53‧‧‧Chute

54‧‧‧ card slot

60‧‧‧ linkage board

70‧‧‧ linkage arm

71‧‧‧First pivot end

72‧‧‧Second pivotal end

73‧‧‧stop groove

80‧‧‧Flexible parts

90‧‧‧Switching device

91‧‧‧First fixed plate

911‧‧‧First upper guide

912‧‧‧First inner guide

913‧‧‧First lower guide channel

92‧‧‧Second fixed plate

921‧‧‧Second upper guide

922‧‧‧Second inner guide

923‧‧‧Second lower guide channel

93‧‧‧Control bolt

932‧‧‧Bolts

934‧‧‧ button

936‧‧‧Sleeve

938‧‧‧ Limit end

94‧‧‧ activity board

942‧‧‧Hook

944‧‧‧ third upper guide

95‧‧‧stop bolt

96‧‧‧Limited board

962‧‧‧3rd lower guide channel

964‧‧‧Limited slot

966‧‧‧Limited convex

97‧‧‧ Guide pin

P1‧‧‧First use location

P2‧‧‧Second use position

P3‧‧‧ third use position

P4‧‧‧Location

P5‧‧‧ pressed position

98‧‧‧Reset elastic parts

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.

Fig. 4 is similar to Fig. 3 and mainly shows the state in which the control pin is in the pressed position.

Figure 5 is a front 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 elevational view of the present invention, primarily showing the manner in which the first cutting edge and the second cutting edge are mutually deployed when the movable panel is in the first use position.

Figure 7 is a front view of the present invention, mainly showing the manner 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 view of the present invention, mainly showing when the movable panel is located in the second When the position is used, the first cutting edge is opposite to the second cutting edge.

Figure 9 is a front view of the present invention, mainly showing the state in which the stopper pin is engaged with the stopper groove of the interlocking arm when the movable plate is in the second use position.

Figure 10 is a front view of the present invention, mainly showing the state in which the movable panel is in the third use position.

Referring to Figures 1, 2 and 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 linkage arm 70. An elastic member 80 and a switching device 90.

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 actuator arm 30 is clamped to the first blade portion 22 of the first cutting edge 20 by two opposing clamping plates 31, 32, and the top ends of the two clamping plates 31, 32 are separated from the first cutting edge by a first pivot 34 20 forms a pivotal connection. 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 connected to the center of the first cutting edge 20 by a second pivot 51. In addition, 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, and the bottom end of the second cutting edge 50 has a sliding groove 53 and a chute. The wall of the groove 53 is provided with a plurality of card slots 54 which are juxtaposed to each other.

One end of the linking plate 60 extends into the two clamping plates 31, 32 of the operating arm 30 and is formed by the first pivot 34 and the first cutting edge 20 and the operating arm 30. The other end of the interlocking plate 60 is pivotally connected to the first cutting edge 20 and the second cutting edge 50 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 between the two clamping plates 31, 32 of the operating arm 30 and is A 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 is passed through a second shaft member 12 that is disposed in the sliding slot 53. Forming 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, and the center of the linking arm 70 is worn. A third shaft member 13 is provided.

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 pivot of the linking arm 70. The end 71 is configured to move the second shaft member 12 toward the top 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 blocking bolt 95, a limiting plate 96, and a reset. Elastic member 98, wherein:

The first and second fixing plates 91, 92 are fixed between the two clamping plates 31, 32 of the operating arm 30 by 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 plate 91 has a first inner guiding groove 912. The first inner guiding groove 912 corresponds to the outer guiding groove 33 of the moving arm 30. The bottom end of the fixing plate 91 has a first lower guiding groove 913. Further, the top end of the second fixing plate 92 has a second upper guiding groove 921 (as 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, the second A second inner guiding groove 922 is defined in the center of the fixing plate 92. The second inner guiding groove 922 corresponds to the first inner guiding groove 912 of the first fixing plate 91. The bottom end of the second fixing plate 92 has a second lower guiding groove 923. The second lower guiding slot 923 corresponds to the first lower guiding slot 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 912 of the first fixing plate 91 and the first inner guiding slot 912 of the first fixing plate 91. The tip end of the latching member 932 extends out as the movable arm 30. In addition, a push button 934 is connected, and a bolt sleeve 936 is screwed to the end of the bolt 932, and the bolt sleeve 936 has a limiting end portion 938. Thereby, the control pin 93 can move in the axial direction of itself in addition to the vertical movement when it is subjected to the action of the 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. When assembled, the fifth shaft member 15 is disposed on the first and second fixing portions. 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 bored 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 to one 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 half of the limiting plate 96 has a limiting slot 964, and the limiting slot 964 corresponds to the second inner guiding slot 922 of the second fixing plate 92. The limiting end 938 of the sleeve 936 is sleeved, and the groove wall of the limiting slot 964 protrudes inwardly from the pair of limiting protrusions 966. As shown in Figures 3 and 4, each pair of limiting protrusions The distance between the portions 966 is less than the outer diameter of the limit end 938 of the boss 936. 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 bolt 936 is located in the limiting slot 964 of the limiting plate 96 and is limited. The two limiting protrusions 966 of the plate 96 are 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 limit of the sleeve 936 is limited. The end portion 938 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 operating arm 30 and the pressing 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, at which time the sleeve 936 of the control pin 93 is controlled. The limiting end portion 938 protrudes from the limiting protrusion 966 of the limiting plate 96 and protrudes into the second inner guiding groove 922 of the second fixing plate 92, and then drives the movable plate 94 by the bolt 936 of the control pin 93. After moving down to the first use position P1 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 shown in FIG. 3 by the return elastic member 98. P4, at this time, the two grips 40 can be started to drive the first and second cutting edges 20, 50 to be relatively unfolded. During the relative unfolding of the two grips 40, the actuating arm 30 continues to pull the linking 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 cutting edge 50 Pivoting away from the first cutting edge 20 until the blocking bolt 95 abuts against the first pivoting end 71 of the linking arm 70, the first and second cutting edges 20, 50 are located at the maximum deployed position. As shown in Fig. 6, the two grips 40 can be operated again to drive the first and second cutting edges 20, 50 relatively closed. During the process of the two grips 40 abutting, the actuating arm 30 pushes the linking arm. 70, moving 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 continuously applying force to the two grips 40, The linkage arm 70 pushes the second cutting edge 50 by the engagement relationship between the second shaft member 12 and the slot 54 to force the second cutting edge 50 to pivot in the direction of the first cutting edge 20 until the second shear When the second blade portion 52 of the blade 50 abuts against the anvil plate 24 of the first cutting edge 20, the thin branches can be sheared at one time.

If rough branches are encountered, the user needs to select the segmentation mode of operation to achieve the goal of labor saving. In detail, first, the control pin 93 is pressed to the pressing position P5 as shown in FIG. 4, and then the movable plate 94 is moved upward by the bolt 936 of the control pin 93 to the one shown in FIG. After the position P2 is used, the pressure applied to the control pin 93 is released, and the control pin 93 is returned to the positioning position P4 as shown in FIG. 3. Then, the first and second scissors can be driven by operating the two handles 40. The blades 20, 50 are relatively unfolded. 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 while pushing the second cutting edge. 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, such as the eighth As shown, the two grips 40 can be operated again to drive the first and second cutting edges 20, 50 relatively closed, during the process of the two grips 40 being relatively close together. The actuating arm 30 pushes the linking arm 70 to engage the second shaft member 12 in the one of the slots 54 from the sliding slot 53. When the two grips 40 are continuously urged, the linking arm 70 passes the second shaft member. The engagement relationship between the 12 and the slot 54 pushes the second cutting edge 50 so that the second blade 52 of the second cutting edge 50 can cut the thick blade into a certain depth but has not been cut until the stop pin 95 is engaged. When the stopping groove 73 of the arm 70 is connected, as shown in FIG. 9, the user will not be able to continue to apply force to the two grips 40. At this time, the user needs to release the force applied to the two grips 40 and at the same time The two handles 40 are unfolded, and the second shaft member 12 is moved up and down along the sliding slot 53 and snapped into the other slot 54. Finally, the two grips 40 are repeatedly biased, released, and reapplied. Force the action 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 is used by The hook portion 942 is hooked on 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 operation modes for different thickness of the branches by the design of the switching device 90, in order to meet the elastic requirements of the shearing operation and improve the cutting. The efficiency of the work.

10‧‧‧Garden shears

20‧‧‧First cutting edge

30‧‧‧Betting arm

40‧‧‧Handle

50‧‧‧second cutting edge

60‧‧‧ linkage board

70‧‧‧ linkage arm

93‧‧‧Control bolt

Claims (7)

The utility model relates to 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; and two grips, wherein one of the grips The top end is fixed to the bottom end of the first cutting edge, and the top end of the other handle is fixed to the bottom end of the working arm; a second cutting edge is pivoted on the first cutting edge and has a chute and a plurality of cards a slot, the card slots are disposed side by side in the slot wall of the slot; a linkage arm has a first pivot end, a second pivot end, and a stop slot, the first pivot end borrows The second shaft member is pivotally disposed on the second cutting edge by a second shaft member, and the second shaft member is slidably disposed on the second cutting edge The slot of the blade is selectively engaged with the one of the second cutting edges, the stopping groove is between the first and second pivoting ends and adjacent to the first pivoting end; An elastic member disposed between the working arm and the first pivoting end of the linking arm; and a switching device having a control bolt, a movable plate, and a stop bolt, the control bolt Displaceably disposed in the outer guide groove of the actuating arm, the movable plate is disposed on the actuating arm and connected to the control pin, the stop pin is disposed at a top end of the movable plate and can be pivoted by the pivoting of the actuating arm Connected to the first pivoting end of the linkage arm or embedded in the stopping groove of the linkage arm. The gardening shear of the switchable operation mode according to claim 1, wherein the switching device further has a first fixing plate and a second fixing plate, the first and second The fixing plate is disposed in the working arm and is located on opposite sides of the movable plate. The first fixing plate has a first inner guiding groove, and the first inner guiding groove corresponds to an outer guiding groove of the moving arm, and the second fixing The plate has a second inner guiding groove, the second inner guiding groove corresponding to the first inner guiding groove, the control pin has a bolt and a sleeve, and the bolt is arranged to be vertically displaced to the outside of the working arm The sleeve and the first inner guiding groove of the first fixing plate are disposed in the second inner guiding groove so as to be vertically displaceable. The gardening shear of the switchable operation mode of claim 2, wherein 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, the stopping bolt The first and second upper guide grooves are vertically displaceable. The gardening shear of the switchable operation mode of claim 2, wherein 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 The limiting slot corresponds to the second inner guiding slot of the second fixing plate, and the two limiting convex portions protrude from the slot wall of the limiting slot, and the locking sleeve has a limiting end portion. The outer diameter of the limiting end portion is greater than the distance between the second limiting protrusions. When the control plug is located at a positioning position, the limiting end of the locking sleeve is located in the limiting slot of the limiting plate and resists The second limiting portion of the limiting plate is disposed at the second position of the limiting plate. When the control pin is located at a pressing position, the limiting end of the locking sleeve is disengaged from the limiting slot of the limiting plate and is disposed at the second position The second inner guide groove of the fixing plate. The gardening shear of the switchable operation mode according to claim 4, wherein the control plug has a push button connected to the head end of the bolt and exposed outside the actuating arm, and the switching device has a reset Elastic member, the return elastic member The sleeve is sleeved between the actuating arm and the push button to hold the control pin in the positioning position. The garden shear of the switchable operation mode of claim 4, wherein the bottom end of the first fixing plate has a first lower guiding groove, and the bottom end of the second fixing plate has a second lower guiding groove, the limit The bottom end of the position plate has a third lower guiding groove, and the bottom end of the movable plate is provided with a guiding bolt, and the guiding pin is vertically displaceably disposed in the first, second and third lower guiding grooves. The gardening shear of the switchable operation mode according to claim 1, wherein a center of the linkage arm is provided with a third shaft member, and one side of the movable panel has a hook portion, and the hook portion is supported by the movable panel Move to hook or disengage the third shaft.