JP2015096038A - Small-branch/leaves pruner for high position - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-branch/leaves pruner for high position in which cutting off rather thick, small branch and leaves is facilitated, a branch and leaves hardly twine around a saw blade, and trimming labor at high position can be reduced.SOLUTION: To the small-branch/leaves pruner for high position, a rotation part for circular saw blade 1 is provided by motive power to a tip part of a long operation pole, in which a side surface of a part of the saw blade 1 is bonded to a projection of a cover, and a supporting pole for supporting an operation pole is provided such that the supporting contact part is slidable.

Description

The present invention relates to an altitude twig leaf cutter for cutting an alpine twig leaf of a tree.

  Traditionally, twig cutting operations in high places such as street trees, garden trees, fences, etc., use scaffolds such as stepladders, and pruning work with pruning shears or hand sawing, etc. There is a case where you work with a scissors, etc., you also use a motorized branch-and-leaf cutter (hedge trimmer), etc. As a prior art of a cutting machine, there is also a configuration in which a circular saw blade is rotated by power to perform a branch cutting operation. In this product, there is a part of the outer periphery of the circular saw blade cover with branch receiving projections on both sides, so that this projection prevents branch escape due to rotation of the circular saw blade and allows efficient work. (For example, refer to Patent Document 1).

However, in this power type, a U-shaped guide is provided on the center of the operation rod to form a branch opening, so that the cut leaves are easily dropped near the operator. In addition, when the tip of the branch that is about to be dropped hangs down, it is difficult to entangle the saw blade and entangle the chips. is there.

JP-A-1-46583

  In view of the above-mentioned drawbacks, the present invention solves the problem of entanglement of thick twigs and the twigs of the twigs, and easily adjusts the length of the operation rod in order to easily cut high places, and The purpose is to provide an altitude twig cutting machine by reducing the work by providing a support rod to support this machine.

  In order to achieve the above object, the present invention combines the advantages of the circular saw blade described above with the advantages of the hedge trimmer (hair clipper blade) to make it easier to cut thick twigs that are difficult to cut. The cutting edge of the circular saw blade has been improved to a shape that makes it easier to cut branches and leaves, and it has a structure that prevents tangles of branches and leaves from being entangled. .

  In addition, as a device that can cut twigs at high places smoothly, a circular saw blade cover opening (twig leaf cut opening) is provided in the diagonally upper part, and a small part that extends upward from the top of the fence or the like. As a means for cutting branches and leaves, it is easy to cut twigs by adopting a structure in which the upper end of the operating rod can be inclined at an angle.

  As a configuration for easily cutting twigs and leaves, it is necessary to make the shape of the circular saw blade so that the twigs can be cut and the leaves can be cut. It is necessary to make a blade shape that cannot be retracted (the blade bites in strongly), and a fine blade for twig cutting is formed at the tip of this blade shape (the outer periphery of the circular saw blade). By providing a large number on the outer peripheral surface of the saw, twig leaves can be easily cut. In addition, a structure that prevents twigs and their chips from getting entangled is provided with a protrusion at one end of the opening of the cover of the circular saw blade (twig leaf cut site) and in close contact with the side surface (cover side) of the circular saw blade Set a circular seat on the blade surface axis side (to prevent the circular saw blade from lifting up), prevent the twigs from biting into the cut part, and also provide a part of the saw blade cover with a scrape entangled with the saw blade.

  As a configuration that allows smooth work in high and middle places, the rotational force of the power machine provided at the lower end of the operating rod is connected to the rotation conversion gear for rotating the circular saw blade at the upper end. As a means, a combination of thick and thin pipes is used for the shaft, and a thick and thin pipe shaft (expandable tube) is provided with irregularities that form grooves in the length direction, so that it becomes a stretchable shaft and circular saw Rotate the blade. In addition, the operation rod is also made of a combination of thick and thin pipes (expandable tubes), and is configured to be telescopic at the same time as the shaft. The expansion and contraction of the operation rod is fine with the operation rod slide joint fastener. Adjust the length according to several holes in the pipe 棹 (tip 棹). This combination method may be an existing method.

  In addition, when similar cutting work such as high fences continues, this machine support rod is provided with this machine support rod in order to reduce the work. A slide member for supporting this machine was provided so that the height could be changed. The slide member consists of a slide stoper material composed of several plates with a ring-shaped hole surrounding the operation rod (pipe rod) at the upper end of the slide member. One side is provided with a tension spring and set below the sliding member on the fulcrum side. Several plates with ring-shaped holes connected to the slide member are tilted by the action of the pull spring and the slide stops, and the operation of the stoper is to change the action of the pull spring provided on the fulcrum side A pull string is provided, and the operation rod can be slid freely by pulling the string. In addition, the slide member provided with this machine support rod mounting member, this mounting member has a shape that allows the angle between the support rod and the operation rod to be wide (between the ground contact part of the support rod and the operation rod), and the operation rod and the support rod. The position where it is easy to work can be provided. In addition, the attachment / detachment of the support rod can be easily done with a screw type etc., and it can be done without a support rod depending on the work contents, and in the case of branch cutting work, it is efficient by replacing the circular saw blade (for branch cutting) Work can be done.

  As described above, the high position twig cutting machine according to the present invention can freely cut twigs from the high place to the middle, and the chips are not easily entangled, so that the length of the operation rod can be easily adjusted. The load of the operator can be reduced by the support rod that supports the machine, the movement can be made small, and the work can be stably and efficiently performed by downsizing the power machine.

Overall schematic diagram for carrying out the present invention Front and back view of the shape of the circular saw blade at the tip of the body, circular saw blade cover, gear section Schematic of the cross section showing the contact between the rotation conversion gear, the circular saw blade and the circular saw blade cover Enlarged partial view showing a circular saw blade and circular saw blade cover Enlarged partial view showing the shape of a circular saw blade Support rod mounting slide member that supports the operation rod Slide stopper material and operation rod Side view and front view showing angle change part at upper part of operation rod Schematic diagram of universal joints with different-diameter combined shafts representing rotational power transmission Perspective view showing different diameter combination shaft (extension)

  FIG. 1 shows an operation rod angle changing unit 2 (universal joint unit) connected to a thick pipe operation rod 4 via a power coupling 10 and a thin pipe operation rod 5 via an operation rod joint fastener 11. Connected to the rotation conversion gear section 9 and connected to the combination pipe shaft (expandable shaft) of different diameter inserted in the operation rod through the rotation conversion gear, and the circular saw blade 1 was provided in the rotation section. High altitude twig leaf cutter is configured.

  FIG. 2 is a front view and a rear view of the saw blade rotating unit. FIG. 3 is a schematic cross-sectional view. A deformed blade type circle that is set and rotated by a gear (bevel gear) rotating unit in the rotation converting unit 9 connected to the operation rod 5. The saw blade 1 and the circular saw blade 1A have an angle for cutting leaves, and this blade shape is a blade shape that avoids digging into the twig strongly, and a cutting blade for twig cutting is provided at the tip of the blade shape ( (See schematic diagrams in FIGS. 2, 4, and 5) The saw blade cover 6 and the saw blade cover are provided with 6A, 6B, 6C, and 6D and parts for cutting twigs, and 6A is in close contact with the saw blade (gap). 6B is a circular saw blade against 6A and prevents twigs from getting entangled, 6D is a chip discharge port, and 6C is a twig leaf insertion port, The circular saw blade 1 is set with a circular saw blade shake prevention reinforcing material 1B, and the rotation of power is rotated through a pipe shaft. 9 to rotate (no internal view display) circular saw blade.

  6 and 7 show a slide member 3 for operating the slide and stopper to raise and lower the operation rod with a rod for supporting the operation rod. The machine support rods 7 and 7A are provided, and the slide member 3 includes a slide stopper material 3A, Pulling the pull string 14 and the string pulling material 15 provided on the stopper support member 3B, which is composed of the stopper support member 3B, the pulling spring 3C, and the fulcrum 3D, pulls the spring and the stopper is turned off so that the pipe operating rod 5 can be raised and lowered. The support rod can be used for a short period of time or for simple work, so that it can be used separately (screws, other existing methods, no figure shown).

      FIG. 8 shows a universal joint 2 for changing the angle of a circular saw blade in order to cut an upward twig, which is composed of an angle support member 2A, an angle change support member 2B, and a bellows member 2C and is connected to an operation rod 5. Further, the inside of the angle support member is connected to the pipe shaft by the universal joint 2. FIG. 9 shows a circular saw provided on a connecting gear portion to a rotational conversion gear portion 9 (bevel gear) via shafts 12 and 13 (extension shaft) and a universal joint 2 for power of a small power machine (electric drill or the like) 8 as a power transmission member. Rotate the blade. FIG. 10 is a perspective view of a combination of projections and recesses on the pipe telescopic shafts 12A and 13A. Bearings (not shown) are provided at several places on the shaft.

The altitude twig leaf cutter of the present invention can be used in a wide range of landscaping, fences, garden trees and the like.

1 Saw blade (1A, 1B)
2 Universal joint (2A, 2B, 2C)
3 This machine support slide member (3A, 3B, 3C, 3D)
4 Thick pipe rod (telescopic shaft)
5 Thin pipe rod (extensible shaft)
6 Saw blade cover (6A, 6B, 6C, 6D)
7 Machine support rod (7A)
8 Motor 9 Rotation conversion gear (Bevel gear)
10 Power coupling 11 Operation rod Slide joint fastener 12 Thick pipe shaft (telescopic shaft) (12A)
13 Fine pipe shaft (extensible shaft) (13A)
14 Pull string 15 String pull material 1A Twig leaf cut deformed saw blade edge, 1B Saw blade reinforcement 2A Angle support material, 2B Angle change support material, 2C Bellows material 3A Slide stopper material, 3B Stopper material support material, 3C Pull spring,
3D Stopper material fulcrum 6A Twig leaf cut support saw blade contact material, 6B Saw blade anti-blur material, 6C Twig leaf insertion port 6D Leaf waste discharge port 7A This machine support rod mounting material

Claims (3)

Connect the power source provided at the base end side of the operation rod with the telescopic scale by connection to the telescopic connection shaft inserted into the operation rod, and the head angle adjustment unit provided at the tip side of the operation rod Connected to the rotation conversion gear via a universal joint, a circular saw blade cover is set in the rotation conversion section, a deformable circular saw blade is set on the gear shaft in the cover, and this machine support rod that can be moved up and down on the operation rod side An altitude twig leaf cutter characterized by the fact that it is equipped with. The circular saw blade is a shape that doubles as a blade type that cuts leaves and a blade type that cuts twigs, and the blade type that cuts leaves is a shape that is deeply cut and does not bite into the twigs, and traces the twigs at the tip of the blade type A blade type with several fine blades for twig cutting is arranged on the outer peripheral surface of the circular saw blade, and the saw blade cover with a close balance between the circular saw blade and the saw blade cover, and a projection 2. The high altitude twig leaf cutter according to claim 1, wherein the high altitude twig leaf is cut. The machine support rod provided on the operation rod is capable of instantaneously moving the operation rod up and down, and the operation rod and support rod can be expanded and narrowed to support the machine. The structure comprising a stopper support member, a tension spring, and a fulcrum, and by operating the stopper member with a string or the like, the stopper is turned off and the operation rod can be moved up and down. High altitude twig leaf cutter.

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