TW201322916A - Lopper with controllable clip - Google Patents

Abstract

A lopper with a controllable clip includes a shell seat unit, a shear unit and an electrically controlled driving unit. The shear unit includes a fixed blade and a rotatable blade. The electrically controlled driving unit installed in the shell seat unit includes a swing arm that is configured to drive the rotatable blade of the shear unit and a power source that is configured to drive the swing arm, in which the swing arm is driven to drive the rotatable blade of the shear unit to move between a closed position where is next to the fixed blade of the shear unit and an opening position where is away from the fixed blade of the shear unit. Accordingly, opening and closing operations of the shear unit can be electrically controlled through the above-describe design, and therefore operational convenience and labor saving effect in use can be achieved.

Description

High branch shears that can control the cut

The present invention relates to a high branch shear, and more particularly to a high branch shear for controlling the cut of a branch.

In order to prevent the branches and leaves of the trees from spreading, it is necessary to trim them at the right time to prevent the branches from falling and hurting people, or to block the line of sight and obstruct the cityscape. However, the branches and leaves of the tall trees are mostly suspended in the air, making it difficult to use a saw to cut the saw. It is convenient to cut the high branch shears by shearing. In the past, high-cutting shear structures, such as Taiwan Patent No. M393982, mostly use mechanical structures such as springs, spiral arms and drawstrings to drive the blades, so they are more laborious and inconvenient to use, and cannot produce strong shearing force. In addition, since the branches are thin and thick, the size of the cuts that can be opened by the high-twig shears is fixed, and the thick branches cannot be cut when used, so the applicability is poor, and the existing high-twig shear structure still needs to be improved.

Accordingly, it is an object of the present invention to provide a high branch shear that can be electrically controlled to open and close for ease of use.

Thus, the present invention can control the high branch shear of the cut, comprising a housing unit, a scissor unit, and an electronically controlled drive unit. The housing unit defines a housing space and an opening that is communicated to one side by the housing space. The scissor unit is mounted to the housing unit and extends out of the opening, and includes a fixed blade and a rotary blade that can be pivoted and opened relative to the fixed blade. The electronically controlled driving unit is mounted in the housing space of the housing unit, and includes a swing arm that drives the rotating blade, and a power source that drives the swing arm to swing, the swing arm is driven to drive the rotating blade relative to The stationary blade is moved between a closed position adjacent to the stationary blade and an open position away from the stationary blade.

The utility model has the advantages that: the design of the electronically controlled driving unit can electrically control the opening and closing of the scissors unit, so as to achieve convenient labor saving and strong shearing force.

Another object of the present invention is to provide a tall branch shear that can control the size of the cut splice.

The present invention can control the high branch shear of the cut, and further comprises a mode switching unit installed in the housing space of the housing unit, the mode switching unit including a trigger mounted on the swing arm and moving with the swing arm a closing sensing member and a small opening sensing member spaced apart from each other on the moving path of the trigger member, and the trigger member is also moved to the swing arm when the rotating blade is moved to the closed position Closing the sensing member, the closing sensing member detects the power source to stop, and in the mode in which the small opening sensing member is turned on, and the rotating blade moves to the open position, the trigger member follows The swing arm is moved to the small opening sensing member, and the small opening sensing member detects the power source and stops the power source.

The mode switching unit further includes a large opening sensing member located on the moving path of the triggering member and away from the closing sensing member, in the mode in which the large opening sensing member is turned on, and the rotation When the blade is moved to the open position, the trigger member is moved to the large opening sensing member along with the swing arm, and the large opening sensing member detects the power source to stop.

The effect of the invention is that by the design of the mode switching unit, the size of the cut-out can be switched to have better usability.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figures 1, 2 and 3, a preferred embodiment of the high branch shear of the present invention comprises a housing unit 1, a scissor unit 2, an electronically controlled drive unit 3, and a mode switching unit 4.

The housing unit 1 includes a plurality of housing sheets 11 that are correspondingly fitted and interlocked, and the housing sheets 11 collectively define a receiving space 12 and an opening 13 that is communicated to one side by the receiving space 12. The housing unit 1 further includes a mounting seat 14 mounted in the housing space 12 adjacent to the opening 13.

The scissors unit 2 is mounted on the mounting seat 14 of the housing unit 1 and extends outwardly from the opening 13 and includes a fixed blade 21 fixed to the mounting seat 14 and a swingable relative to the fixed blade 21 The rotary blade 22 of the mount 14 is attached to the opening and closing. The stationary blade 21 has a fixed edge 211 adjacent to the rotating blade 22. The rotary blade 22 has a rotary cutting edge 221 adjacent to the stationary blade 21. A cutting edge 23 is formed between the rotating cutting edge 221 and the fixed cutting edge 211 to open and close to cut the branches.

The electronically controlled driving unit 3 is located in the receiving space 12 of the housing unit 1, and includes a swing arm 31 that engages the rotating blade 22 to drive the rotating blade 22 to rotate together, and a power source that drives the swing arm 31 to swing. 32, and a push button 33 that controls the activation of the power source 32. The swing arm 31 is a tooth plate having a plurality of first latching teeth 311 formed on the periphery thereof, and is mounted on the mounting seat 14. Of course, the swing arm 31 can also be integrally formed with the rotary blade 22.

The power source 32 is a motor that is electrically connected to a power source (not shown). Pressing the button 33 activates the power source 32 to control the opening 23 to open and close. The electronically controlled drive unit 3 further includes a gear 34 mounted between the power source 32 and the swing arm 31 and driven by the power source 32 to engage the swing arm 31. The gear 34 has a plurality of gears 34 formed thereon. a second latch 341 that is circumferentially engaged with the first latch 311 of the swing arm 31. Of course, between the power source 32 and the gear 34, there are some helical gears, face gears or the like for transmitting power. Other transmission members, but they are not the focus of the present invention, so they will not be described in detail herein.

The mode switching unit 4 is mounted in the housing space 12 of the housing unit 1 and includes a circuit board 41 adjacent to the swing arm 31 and electrically connecting the power source and the power source 32, and a circuit board 41 mounted on the swing arm 31. A triggering member 42 that moves with the swing arm 31, a closing sensing member 43 disposed at a distance from each other on the circuit board 41, a small opening sensing member 44, a large opening sensing member 45 and a safety sensing member 46 And a changeover switch 47 mounted to the housing unit 1 and electrically connected to the circuit board 41.

The closing sensing member 43, the small opening sensing member 44, the large opening sensing member 45 and the safety sensing member 46 are sequentially located on the moving path of the triggering member 42, and the large opening sensing member 45 is compared. The small opening sensing member 44 is away from the closing sensing member 43 , and the safety sensing member 46 is away from the closing sensing member 43 than the large opening sensing member 45 . The triggering member 42 is a magnet, and the closing sensing member 43, the small opening sensing member 44, the large opening sensing member 45 and the safety sensing member 46 are both a reed switch, and the reed switch is turned on. In the mode, when the magnet moves to the reed switch, the reed switch will be induced to open, but in the state where the reed switch is disconnected, the reed switch will not be induced to be turned on by the magnet, of course, the closure sensing is implemented. The small opening sensing member 44, the large opening sensing member 45 and the safety sensing member 46 can also be other proximity switches, and the triggering member 42 is the starting member for opening the proximity switch, and will not be described here. .

It should be noted that the closing sensing member 43 and the safety sensing member 46 are constantly turned on and connected with the power supply connecting circuit board 41, and the switching switch 47 is configured to switch between the small opening sensing member 44 and the large opening sensing. One of the members 45, in the mode in which the small opening sensing member 44 is turned on, the large opening sensing member 45 is disconnected, and in the mode in which the large opening sensing member 45 is turned on, the small opening sensing member 44 is Open circuit. In addition, since the circuit control design of the mode switching unit 4 is not the focus of the present invention, it will not be described here.

In use, the power source 32 is turned on and the button 33 is pressed to drive the gear 34 to engage the swing arm 31, and the rotary blade 22 is interlocked with respect to the fixed blade 21 to be closed adjacent to the fixed blade 21 The closed position of the cut-out 23 (see Fig. 4), and an open position (see Figs. 3, 5) that leaves the fixed blade 21 to open the cut-off 23 (see Figs. 3, 5). However, in the embodiment, by the setting of the mode switching unit 4, when the switch control is moved to the open position, the scissors unit 2 opens the angle to form the cuts 23 of different sizes, and the following describes the control use thereof. the way.

In the mode in which the small opening sensing member 44 is turned on, the large opening sensing member 45 is disconnected, and when the rotating blade 22 is moved to the open position, the triggering member 42 is also driven by the swing arm 31 to move correspondingly. When the small opening sensing member 44 is opened, the small opening sensing member 44 senses the sensing and stops the power source 32, so that the rotating blade 22 is temporarily at the open position, and then the branches and leaves can be placed. Cut in the mouth 23.

When the blade is to be cut, the power source 32 is activated again by pressing the button 33, so that the swing arm 31 moves the rotary blade 22 to the closed position as shown in FIG. 4, and the trigger member 42 also follows the same. The swing arm 31 is moved to the closing sensing member 43, and the closing sensing member 43 senses to stop the power source 32, and the rotating blade 22 is temporarily rested in the closed position to cut the cutting edge. Branches and leaves in 23. Then, the power source 32 is automatically restarted, so that the swing arm 31 drives the rotary blade 22 to move to the open position as shown in FIG. 3, so that the trigger member 42 and the small opening sensing member 44 magnetically act. The small opening sensing member 44 is caused to drive the power source 32 to stop to open the cutting opening 23 for the next cutting operation.

Referring to FIG. 5, when the size of the cut-out 23 is to be adjusted to cut the thicker branches, the switch 47 can be pressed to switch to the mode in which the wide-opening sensing member 45 is turned on, and the small-open sensing member is turned on. When the power source 32 drives the swing arm 31 to swing, until the trigger member 42 moves to the large opening sensing member 45 along with the swing arm 31, the large opening sensing member 45 senses and powers the sensing member 45. The source 32 is stopped, and the rotary blade 22 is also moved to the open position at this time, so that the angle at which the cut opening 23 is opened is larger than the angle at which the sensing member 44 is turned on.

Referring to FIG. 6, it is worth mentioning that if the switch 47 is damaged, or the small opening sensing member 44 and the large opening sensing member 45 fail and are not turned on, the rotating blade 22 is moved to the open position. Thereafter, since the triggering member 42 passes through the small opening sensing member 44 and the large opening sensing member 45, the power source 32 is not detected, so the swing arm 31 continues to swing until the triggering The piece 42 is moved to the corresponding safety sensing member 46, and the safety sensing member 46 is detected to stop the power source 32, and the power source 32 is prevented from continuing to operate to further improve the safety of use.

In summary, the design of the electronically controlled driving unit 3 of the present invention can electrically control the opening and closing of the scissors unit 2 by using the power source 32, which can achieve the effect of being convenient and convenient to use, and can be generated more when used. Strong shearing force, 俾 can quickly and reliably cut the branches and leaves, and further, by the design of the mode switching unit 4, the size of the switching slit 23 can be easily adjusted to facilitate cutting the branches and leaves of different thicknesses, The invention is preferably used, so that the object of the invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

1. . . Housing unit

11. . . Shell wall

12. . . Included space

13. . . Opening

14. . . Mount

2. . . Scissor unit

twenty one. . . Fixed blade

211. . . Fixed edge

twenty two. . . Rotating blade

221. . . Rotating edge

twenty three. . . Cut

3. . . Electronically controlled drive unit

31. . . Swing arm

311. . . First card tooth

32. . . Power source

33. . . Button

34. . . gear

341. . . Second card tooth

4. . . Mode switching unit

41. . . Circuit board

42. . . Trigger

43. . . Closed sensing

44. . . Small open sensing

45. . . Large open sensing unit

46. . . Safety sensor

47. . . Toggle switch

1 is a perspective view of a preferred embodiment of a high branch shear capable of controlling a cut according to the present invention, illustrating a state in which one side of the shell is removed;

Figure 2 is an exploded perspective view of the preferred embodiment;

3 is a side elevational view of a portion of the preferred embodiment, illustrating a trigger member moved to a small opening sensing member;

Figure 4 is a partial view similar to Figure 3, illustrating the trigger member moved to a closed sensing member;

Figure 5 is a partial view similar to Figure 3, illustrating the trigger member moved to a large opening sensing member;

Figure 6 is a partial view similar to Figure 3 illustrating the trigger member moved to a safety sensing member.

1. . . Housing unit

11. . . Shell wall

12. . . Included space

13. . . Opening

14. . . Mount

2. . . Scissor unit

twenty one. . . Fixed blade

211. . . Fixed edge

twenty two. . . Rotating blade

221. . . Rotating edge

3. . . Electronically controlled drive unit

31. . . Swing arm

311. . . First card tooth

32. . . Power source

33. . . Button

34. . . gear

341. . . Second card tooth

4. . . Mode switching unit

41. . . Circuit board

42. . . Trigger

43. . . Closed sensing

44. . . Small open sensing

45. . . Large open sensing unit

46. . . Safety sensor

47. . . Toggle switch

Claims (8)

A high branch shear capable of controlling a cut, comprising: a shell unit defining a receiving space and an opening connected to the one side by the receiving space; a scissor unit mounted on the housing unit and extending The opening includes a fixed blade and a rotary blade rotatably openable relative to the fixed blade; and an electronically controlled driving unit mounted in the housing space of the housing unit and including a driving rotation a swing arm of the blade, and a power source for driving the swing arm to be driven, the swing arm being driven to drive the rotary blade relative to the fixed blade in a closed position adjacent to the fixed blade, and a leaving the fixed blade Move between open positions. The high-cutting shear capable of controlling the cut according to claim 1 of the patent application scope, further comprising a mode switching unit installed in the housing space of the housing unit, the mode switching unit including a swing arm mounted on the swing arm a triggering member for moving the swing arm, and a closing sensing member and a small opening sensing member spaced apart from each other on the moving path of the triggering member, when the rotating blade is moved to the closed position, the triggering member is also As the swing arm moves to the closed sensing member, the closing sensing member detects the power source, and in the mode in which the small opening sensing member is turned on, and the rotating blade moves to the open position When the trigger member is moved to the small opening sensing member along with the swing arm, the small opening sensing member detects the power source and stops the power source. The high-scissors of the controllable cut according to the second aspect of the patent application, wherein the mode switching unit further comprises a moving path on the trigger member and away from the closed sensing member than the small open sensing member. a large opening sensing member, in the mode in which the large opening sensing member is turned on, and the rotating blade is moved to the open position, the triggering member is moved along with the swing arm to the large opening sensing member, and the large opening sensing member is Will detect and stop the power source. According to the high-cutting shear of the controllable cut-out according to the third aspect of the patent application, the mode switching unit further includes a switch mounted on the base unit, the switch is configured to switch the small open sensing component And one of the large opening sensing members, the large opening sensing member is disconnected in a mode in which the small opening sensing member is turned on, and in the mode in which the large opening sensing member is turned on, the small opening sensing member is Open circuit. The high-cutting shear capable of controlling the cut according to claim 4, wherein the mode switching unit further comprises a moving path on the trigger member and away from the closed sensing member. The safety sensing member is moved to the safety sensing member along with the swing arm, and the safety sensing member detects the power source to stop. The high-scissor capable of controlling the cut according to claim 5, wherein the trigger member is a magnet, the closing sensing member, the small opening sensing member, the large opening sensing member and the safety sensing Each piece is a reed switch. The high-scissors of the controllable cut according to claim 1, wherein the swing arm is a tooth plate, and the electronically controlled drive unit further comprises a gear driven by the power source to engage the swing arm. . The high-cutting shear capable of controlling the cut according to the first aspect of the patent application, wherein the power source is a motor.