JP3211343U - Telescopic high branch cutting shears - Google Patents

Abstract

Provided is a stretchable high-branch ridge that can be accurately aligned with a branch to be pruned and that has a stretching function. A retractable high-branch scissor includes a telescopic scissor, a blade, a driving member, and a control handle. The drive member 30 includes a hollow tubular first casing 31 inserted into the telescopic casing 10, and a second casing 32 inserted into the first casing 31 and extending rearward from the first casing 31. The third casing 33 is connected to the front end of the first casing 31 in abutment, and the fourth casing 34 is connected to the third casing 33 via the engagement device 35. The telescopic rod 10 has an outer tube 11, an intermediate tube 12, and an inner tube 13, and the outer tube 11, the intermediate tube 12, and the inner tube 13 are sequentially fitted. When the expansion / contraction length of the inner tube 12 is adjusted in the outer tube 11 and the inner tube 13 is adjusted in the inner tube 12, the total length of the high branch cutting rod changes. A first positioning assembly 14 is attached to the front end of the outer tube 11. A second positioning assembly 15 is attached to the front end of the middle tube 12. [Selection] Figure 2

Description

  The present invention relates to a stretchable high-branch shear, and more particularly, to a stretchable high-branch shear that can be accurately aligned with a branch to be pruned and that has a stretching function.

  Conventional stretchable high-branch shears, such as agricultural stretchable shears, have the disadvantage that the outer periphery of the tube member of the base must be covered with a tubular spacer. In addition, when the middle tube and the inner tube expand and contract between the tubular spacer and the base end portion of the base, the power for pressing the operating portion is reliably transmitted by accurately aligning and engaging the middle tube and the inner tube. In addition, a spring is disposed. However, the tubular spacer attached to the annular member and covering the outer periphery complicates the entire structure, and there is a risk that the difficulty of assembly is greatly increased.

  Therefore, the main problem of the present invention is to accurately position each member without sequentially inserting and removing the above-described inner tube and the above-described middle tube, and to remove the outer periphery of the first casing without taking time and effort. It is another object of the present invention to provide a stretchable high-branch scissor that does not need to be covered with a tubular spacer, has a simple overall structure, and can be easily assembled.

Therefore, as a result of intensive studies to solve the problems of the present invention, the inventor can solve the above problems by combining a position restricting member and a position restricting elongated hole in the above-mentioned high branch cutting scissors. Based on this knowledge, the inventors came up with the present invention.
Thus, the gist of the present invention is as described in the following (1) to (9).

(1) An extendable high branch cutting scissor equipped with an extendable scissors, a blade, a drive member, and a control handle,
The drive member includes a hollow tubular first housing inserted into the telescopic housing, a second housing inserted into the first housing and extending rearward from the first housing, A third housing that is connected to the front end of the first housing, and a fourth housing that is connected to the third housing via an engagement device;
The telescopic rod has an outer tube, an intermediate tube, and an inner tube, and the outer tube, the intermediate tube, and the inner tube are sequentially fitted, the intermediate tube is in the outer tube, and the inner tube is in the middle tube When the telescopic length is adjusted, the total length of the high branch cutting rod changes, a first positioning assembly is attached to the front end of the outer tube, and a second positioning assembly is attached to the front end of the middle tube. When the first positioning assembly and the second positioning assembly are pressed and released, the expansion and contraction of the middle tube and the inner tube is adjusted and fixed, and the rear portion of the middle tube has a position constraint. A long hole is formed, the blade is fixed to the front end of the inner tube, and has a movable blade and a fixed blade pivoted to each other, and a recovery spring is hooked on the movable blade, A connection section to which the fourth housing is connected is provided;
An enlarged support portion is provided at a predetermined position on the outer periphery of the first casing, a tapered guide surface and an annular groove are sequentially provided from the rear to the front, and the second casing is provided at the front end. Since it has an enlarged stopper portion and a male screw provided at the rear end, and the stopper portion is used as a stopper, the second housing is inserted through and extends rearward from the first housing. At least one front engagement groove and at least one rear engagement groove are provided at the leading edge of the fourth casing, and the drive member is in the telescopic casing. The position restricting member is combined with the support portion, the position restricting member extends toward the position restricting elongated hole of the middle tube, and the engagement device is provided with the second positioning assembly of the middle tube. Aligned with the second In a normal state under which the inner pipe by operating the positioning assembly regressed, the engagement device is positioned by being engaged in the front engaging groove,
The control handle is fixed to a rear end of the outer tube and has a movable handle and a fixed handle pivoted to each other, and is screwed onto the male screw of the second casing on the movable handle. And a locking block that is pushed outward by the spring, and the locking block is guided by the tapered guide surface under the condition that the telescopic rod is retracted by the middle tube, A stretchable high-branching scissor that is smoothly engaged in the annular groove of the first housing and that the pressing power is transmitted through the first housing by the operation of the movable handle.
(2) The outer tube, the middle tube, and the inner tube are provided with positioning protrusions and positioning grooves that are opposed to each other, and when the positioning protrusions are engaged with the positioning grooves, The stretchable high-branched scissors according to (1), wherein members are prevented from being fitted and rotated with respect to each other.
(3) The support portion is composed of two semicircular disc bodies, the two semicircular disc bodies are abutted and fitted onto the first casing,
The stretchable high-branched scissors according to (1), wherein the support portion is interlocked with the first housing.
(4) The extendable high-branched scissors according to (1), wherein the support portion is formed by welding a disk on the first housing.
(5) The support portion includes a sleeve extending in the direction of the tapered guide surface of the first casing,
An engagement groove is formed in the rear part of the middle tube,
The sleeve is fitted with an elastic member,
One end of the elastic member is in contact with the support portion, the other end is engaged with the engagement groove, and an auxiliary restoring force is obtained by the elastic member when the first casing and the support portion are displaced. The stretchable high branch cutting scissors as described in (1) above.
(6) The third casing is abutted and connected to the first casing by a screwing method, and fine adjustment of the third casing is performed by changing a screwing depth. The stretchable high branch cutting shears according to 1).
(7) The fourth casing has a main body part and an extension part connected to each other, and the blade is fixed through the extension part. Takaeda-cut rice cake.
(8) The stretchable high branch cutting scissors according to (1), wherein the position restricting member is a pin inserted into the support portion.
(9) The stretchable high-branched scissors according to (1), wherein the position restricting member is a screw that is screwed into the support portion.

The present invention has the above-described configuration and solves the above problems. That is, the high branch cutting scissors according to the present invention can position the inner tube accurately between the members without sequentially taking in and out the inner tube by combining the position restricting member and the position restricting elongated hole. In addition, since it is not necessary to cover the outer periphery of the first housing with a tubular spacer, the overall structure is simplified, and the assembly work can be easily performed.

FIG. 1 is a perspective view showing a stretchable high branch cutting scissor according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a stretchable high branch cutting scissor according to an embodiment of the present invention. FIG. 3 is a diagram illustrating details of a drive member of a stretchable high-branch scissor according to an embodiment of the present invention. FIG. 4 is an assembly plan view showing a stretchable high branch cutting scissor according to an embodiment of the present invention. FIG. 5 is an explanatory diagram showing a retracted state of a retractable high-branch cutter according to an embodiment of the present invention. FIG. 6 is an explanatory view showing a state in which the inner tube of the extendable / branching high branch cutting rod according to one embodiment of the present invention is extended. FIG. 7 is an explanatory view showing a state in which the inner tube and the middle tube of the extendable high branch cutter according to one embodiment of the present invention are extended.

  First, reference will be made to FIGS. As shown in FIGS. 1 to 4, the stretchable high-branch scissors according to an embodiment of the present invention is composed of at least a telescopic scissor 10, a blade 20, a drive member 30, and a control handle 40. The drive member 30 has a hollow tubular first casing 31 inserted into the telescopic casing 10 and a second casing 32 inserted into the first casing 31 and extending rearward from the first casing 31. And a third casing 33 that is connected to the front end of the first casing 31 described above, and a fourth casing 34 that is connected to the third casing 33 described above via the engagement device 35. . The telescopic rod 10 includes an outer tube 11, an intermediate tube 12, and an inner tube 13. The outer tube 11, the middle tube 12, and the inner tube 13 are sequentially fitted, and the length of the inner tube 12 is adjusted in the outer tube 11 described above, and the length of the inner tube 13 is adjusted in the inner tube 12 described above. Then, the total length of the above-mentioned Takaeda cutting shears changes. A first positioning assembly 14 is attached to the front end of the outer tube 11 described above, and a second positioning assembly 15 is attached to the front end of the middle tube 12 described above, and the first positioning assembly 14 and the second positioning assembly 14 are attached. When the positioning assembly 15 is pressed and then released, the expansion and contraction of the above-described middle tube 12 and the above-described inner tube 13 are adjusted and fixed, and a position restraining long hole 121 is formed in the rear portion of the middle tube 12. The blade 20 includes a movable blade 21 and a fixed blade 22 that are fixed to the front end of the inner tube 13 and pivoted to each other. The movable blade 21 is provided with a connection section 211 to which the recovery spring 23 is hooked and to which the above-described fourth casing 34 is connected. An enlarged support portion 311 is provided at a predetermined location on the outer periphery of the first casing 31, and a tapered guide surface 312 and an annular groove 313 are sequentially provided from the rear to the front. The second housing 32 has an enlarged stopper portion 321 provided at the front end and a male screw 322 provided at the rear end. Since the stopper portion 321 is used as a stopper, the above-described second housing 32 is Even if it is inserted and extends rearward from the first casing 31 described above, it can be prevented from coming off from the first casing 31 directly. At the front end edge of the fourth housing 34, at least one front engagement groove 341 and at least one rear engagement groove 342 are provided. The drive member 30 described above is inserted into the telescopic rod 10 described above, the position restricting member 36 is combined with the support portion 311 described above, and the position restricting member 36 extends toward the position restricting long hole 121 of the intermediate tube 12 described above. The above-described engaging device 35 is aligned with the second positioning assembly 15 of the intermediate tube 12, and in the normal state where the inner tube 13 is retracted by operating the above-described second positioning assembly 15, The device 35 is engaged and positioned in the front engagement groove 341. The control handle 40 is fixed to the rear end of the outer tube 11 described above, and has a movable handle 41 and a fixed handle 42 pivoted to each other. On the above-described movable handle 41, there are provided a linkage 43 that is screwed onto the above-described male screw 322 of the second casing 32, and a locking block 44 that is pushed outward by a spring. Under the state where the telescopic rod 10 is retracted by the middle tube 12, the above-described locking block 44 is guided by the tapered guide surface 312 and smoothly engaged into the annular groove 313 of the above-mentioned first housing 31; The pressing power is transmitted through the first casing 31 by the operation of the movable handle 41 described above.

  The outer tube 11, the middle tube 12 and the inner tube 13 of the stretchable high branch cutting rod of the present embodiment are provided with positioning protrusions and positioning grooves facing each other, and the positioning protrusions become positioning grooves. When engaged, the members are fitted and prevented from rotating with each other.

The support part 311 of the stretchable high-branch shear of this embodiment is composed of two semicircular disk bodies, and the two semicircular disk bodies are abutted and fitted onto the first casing 31 described above. The support portion 311 described above is interlocked with the first casing 31 described above.

The above-described support portion 311 of the stretchable high-branch scissors according to this embodiment is formed by welding a disk on the above-described first housing 31.

The stretchable high-branch scissor support 311 of this embodiment has a sleeve 3111 extending in the direction of the tapered guide surface 312 of the first housing 31. An engagement groove 122 is formed in the rear portion of the middle tube 12 described above. The sleeve 3111 is fitted with an elastic member 37. When the elastic member 37 described above has one end abutted on the support portion 311 and the other end engaged with the engagement groove 122 described above, and the first casing 31 and the support portion 311 described above are displaced, the above-described elastic member 37 is provided. An auxiliary restoring force is obtained by the member 37.

The third casing 33 of the stretchable high-branch cutter according to the present embodiment is connected to the first casing 31 by being abutted with each other by a screwing method, and the depth of the third casing 33 is changed by changing the screwing depth. Make adjustments.

The fourth casing 34 of the stretchable high-branch cutter of this embodiment has a main body part 340 and an extension part 3400 that are connected to each other, and the above-described blade 20 is fixed thereto via the extension part 3400.

The position control member 36 of the extendable high branch cutting rod of the present embodiment is a pin that is inserted into the support portion 311.

The position control member 36 of the stretchable high-branch scissors of this embodiment is a screw that is screwed into the support portion 311.

When the movable handle 41 is pressed and the locking block 44 is engaged with the first casing 31 in a state where the telescopic casing 10 is completely retracted, the third casing 33 and the first casing 33 fixed to the first casing 31 and the second Power is transmitted by the housing 4 of the 4 and the opening and closing of the movable blade 21 of the blade 20 is controlled, so that the cutting can be performed smoothly (see also FIG. 5). The inner pipe 13 is sequentially fitted, and one of the above-described middle pipe 12 and inner pipe 13 is extended, or the middle pipe 12 and the inner pipe 13 are both extended and used. After extending the inner pipe 13 (refer also to FIG. 6), when the engaging device 35 is again engaged with the rear engaging groove 342 of the fourth casing 34, the third casing 33 is connected to the fourth casing 34. When the locking block 44 is turned smoothly and the locking block 44 is rotated, the locking block 44 described above is disengaged from the annular groove 313 described above, and the above-described inner tube 12 extends smoothly (see also FIG. 7). When the pipe 12 extends and presses the movable handle 41, the linkage 43 again drives the second casing 32 backward, and the enlarged stopper portion 321 of the second casing 32 is engaged with the first casing 31. In the process of moving the second casing 32 rearward, the first casing 31 is interlocked with the second casing 32, and the position restricting member 36 described above protrudes from the position restricting elongated hole 121. The housing 31 and the support portion 311 are positioned restraint long holes 1. It is possible to perform a limited translation within the range set by one. In addition to being able to engage and position the engaging device 35 in the front engaging groove 341 or the rear engaging groove 342 without sequentially inserting and removing the inner tube 13 and the intermediate tube 12 described above, When the above-described middle tube 12 is retracted, when the above-described locking block 44 is engaged with the above-described annular groove 313 and the support portion 311 is installed, the above-described driving member 30 can be held in a suitable horizontal position. it can.

As can be seen from the above, the retractable high branch cutting rod of the present invention combines the position restricting member 36 and the position restricting long hole 121 to sequentially put in and out the inner tube 13 and the middle tube 12 described above. Even if not, it is not necessary to position each member accurately and to cover the outer periphery of the first casing 31 with a tubular spacer separately over time and effort. Therefore, the entire structure is simplified and can be easily assembled. Has advantages.

10 telescopic rod 11 outer tube 12 middle tube 13 inner tube 14 first positioning assembly 15 second positioning assembly 20 blade 21 movable blade 22 fixed blade 23 spring 30 drive member 31 first housing 32 second housing 33 third Enclosure 34 Fourth engagement element 35 Engagement device 36 Position restricting member 37 Elastic member 40 Control handle 41 Movable handle 42 Fixed handle 43 Linkage 44 Locking block 121 Position restriction slot 122 Engaging groove 211 Connection section 311 Supporting part 312 Tapered guide surface 313 Annular groove 321 Stopper part 322 Male thread 340 Main body part 341 Front engagement groove 342 Rear engagement groove 3111 Sleeve 3400 Extending part

Claims (9)

A telescopic high branch cutting scissor equipped with a telescopic scissors, blade, drive member and control handle,
The drive member includes a hollow tubular first housing inserted into the telescopic housing, a second housing inserted into the first housing and extending rearward from the first housing, A third housing that is connected to the front end of the first housing, and a fourth housing that is connected to the third housing via an engagement device;
The telescopic rod has an outer tube, an intermediate tube, and an inner tube, and the outer tube, the intermediate tube, and the inner tube are sequentially fitted, the intermediate tube is in the outer tube, and the inner tube is in the middle tube When the telescopic length is adjusted, the total length of the high branch cutting rod changes, a first positioning assembly is attached to the front end of the outer tube, and a second positioning assembly is attached to the front end of the middle tube. When the first positioning assembly and the second positioning assembly are pressed and released, the expansion and contraction of the middle tube and the inner tube is adjusted and fixed, and the rear portion of the middle tube has a position constraint. A long hole is formed, the blade is fixed to the front end of the inner tube, and has a movable blade and a fixed blade pivoted to each other, and a recovery spring is hooked on the movable blade, A connection section to which the fourth housing is connected is provided;
An enlarged support portion is provided at a predetermined position on the outer periphery of the first casing, a tapered guide surface and an annular groove are sequentially provided from the rear to the front, and the second casing is provided at the front end. Since it has an enlarged stopper portion and a male screw provided at the rear end, and the stopper portion is used as a stopper, the second housing is inserted through and extends rearward from the first housing. At least one front engagement groove and at least one rear engagement groove are provided at the leading edge of the fourth casing, and the drive member is in the telescopic casing. The position restricting member is combined with the support portion, the position restricting member extends toward the position restricting elongated hole of the middle tube, and the engagement device is provided with the second positioning assembly of the middle tube. Aligned with the second In a normal state under which the inner pipe by operating the positioning assembly regressed, the engagement device is positioned by being engaged in the front engaging groove,
The control handle is fixed to a rear end of the outer tube and has a movable handle and a fixed handle pivoted to each other, and is screwed onto the male screw of the second casing on the movable handle. And a locking block that is pushed outward by the spring, and the locking block is guided by the tapered guide surface under the condition that the telescopic rod is retracted by the middle tube, A stretchable high-branching scissor that is smoothly engaged in the annular groove of the first housing and that the pressing power is transmitted through the first housing by the operation of the movable handle.   The outer tube, the middle tube, and the inner tube are provided with positioning protrusions and positioning grooves facing each other, and when the positioning protrusions are inserted into the positioning grooves, the respective members are fitted. The stretchable high-branched scissors according to claim 1, which are combined to prevent rotation with each other. The support portion is constituted by two semicircular disc bodies, the two semicircular disc bodies are abutted and fitted onto the first casing,
The stretchable high-branched scissors according to claim 1, wherein the support portion is interlocked with the first housing.   The stretchable high-branched scissors according to claim 1, wherein the support portion is formed by welding a disk on the first housing. The support portion has a sleeve extending in the direction of the tapered guide surface of the first casing,
An engagement groove is formed in the rear part of the middle tube,
The sleeve is fitted with an elastic member,
One end of the elastic member is in contact with the support portion, the other end is engaged with the engagement groove, and an auxiliary restoring force is obtained by the elastic member when the first casing and the support portion are displaced. The stretchable high branch cutting scissors according to claim 1. The said 3rd housing | casing is faced | matched and connected with the said 1st housing | casing by the screwing system, The fine adjustment of the said 3rd housing | casing is performed by changing the screwing depth. Stretchable high branch cutting shears. The stretchable high-branched scissors according to claim 1, wherein the fourth housing includes a main body portion and an extending portion connected to each other, and the blade is fixed through the extending portion.   The stretchable high-branched scissors according to claim 1, wherein the position restricting member is a pin inserted into the support portion. The stretchable high-branched scissor according to claim 1, wherein the position restricting member is a screw that is screwed into the support portion.

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