JPH036188Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a pruning machine, and particularly to an opening/closing structure of a frame of a main body part that is set to surround a standing tree.

(Summary of the invention) As a pruning machine, the main body is set on a standing tree,
It is known that the machine includes a cutting section attached to the main body, and the cutting section cuts branches protruding from the tree while ascending the tree by itself. This type of main body consists of multiple frames in the vertical direction that surround the tree, and lifts the tree in a spiral or vertical manner by driving the lifting wheels by an engine. When the process is completed, the frame must be opened and closed as appropriate to set the main body on the tree or remove it from the tree.

The purpose of the present invention is to provide a pruning machine that can quickly and easily perform the work of setting the main body part onto a standing tree and the subsequent work of removing it, and can also maintain the state of firmly setting the main part onto a standing tree. . To this end, the present invention provides a pruning machine that includes a main body having a plurality of frames in the vertical direction surrounding a standing tree, and a cutting part attached to the main body. One end of each frame piece is rotatably connected to each other by a hinge part, and the other ends are removably connected to a locking part provided at each other end. In order to engage with the locking bodies to be mated, each of the locking bodies is connected to the same rotating shaft, biased by a spring material in the direction of engagement with each of the locking parts, and each of the locking bodies is It is equipped with a rotating operation section for the stopper. With this structure, each of the locking bodies can be rotated at the same time and can be easily attached to and removed from each locking part, so that the main body can be quickly and easily set on a tree or removed from it. , by firmly engaging each locking body with each locking part by the spring force of the spring material,
This prevents each frame from being unnecessarily opened when the frame is set on a tree, and allows the frame to be securely maintained when set on a tree.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 shows a pruning machine A according to the present invention, which includes a main body part B that is set on a standing tree T, and a main body part B that is detachably or integrally attached to the main body part B. It consists of a cut section C.

The main body part B includes a plurality of annular frames F1, F2, F3 in the vertical direction that are set surrounding the tree T.
It is constructed by attaching lifting wheels 1 etc. to each frame F1 to F3, and each frame F1 to F3 is equipped with a lifting wheel 1 etc.
F3 is connected by connecting rod 2. Each of the frames F1 to F3 is a semicircular frame piece F.
1a, F1b, F2a, F2b, F3a, F3b
It consists of Each of the frame pieces F1a to F3b is a hollow tube, and its cross-sectional shape is rectangular.
Frame pieces F1a and F1b and frame piece F
2a and F2b and frame pieces F3a and F
One end portions of 3b are hinged portions 3, 3,
3, and the other ends of each of the frame pieces F1a to F3b are detachably connected to each other by engagement means, which will be described in detail below.

In Figure 2, 4, 4, 4 are each frame piece F
This is a pin-shaped locking portion that protrudes from the upper surface of the other end of 1a, F2a, and F3a. Reference numerals 5, 5, and 5 are seat plates fixed to the upper surfaces of the other ends of the frame pieces F1b, F2b, and F3b with one end thereof protruding inward from each of the frame pieces F1b to F3b (see also Figure 3). ), a vertical rotating shaft 6 is rotatably inserted into each seat plate 5, 5, 5. Reference numerals 7, 7, and 7 are plate-shaped locking bodies, which are connected to the seat plates 5, 7, and 7 of the rotating shaft 6, respectively.
It is attached to the top of 5,5. That is, the locking bodies 7, 7, 7 are connected to each other via the rotating shaft 6, and rotate simultaneously in the same direction using the rotating shaft 6 as the same rotating shaft. The outer surfaces of the distal ends of the locking bodies 7, 7, 7 are tapered surfaces 7a, 7a, 7a, and are connected to the tapered surfaces 7a, 7a, 7a so that they can be attached to and removed from the locking parts 4, 4, 4. Engagement part 7 that engages freely
b, 7b, 7b are recessed. Reference numerals 8 and 8 refer to biasing spring members attached to the rotating shaft 6, one end of which is attached to pins 9, 9 erected on the uppermost and lowest seat plates 5, 5; Rotating shaft 6 and locking bodies 7, 7, 7 attached to the rotating shaft 6
counterclockwise a, that is, the engaging portions 7b, 7b,
7b is biased in the direction of engagement with the locking portions 4, 4, 4. Reference numerals 10 and 10 designate stoppers that define the limit of rotation of the locking bodies 7, 7, 7 in the counterclockwise direction a. Reference numeral 11 denotes a rotation operation part for the locking bodies 7, 7, 7 attached to the rotating shaft 6, and the operation part 11 is held in the hand and rotated clockwise against the spring force of the spring members 8, 8. When rotated to b, each locking body 7, 7,
7 also rotates in the same direction at the same time, and the engaging portions 7b, 7
b, 7b are released from the locking bodies 4, 4, 4 (second
(See the dashed line in the figure).

Reference numeral 12 denotes a tapered displacement prevention member protruding from the end of each of the frame pieces F1a to F3a, and both side surfaces thereof are tapered surfaces 12a. With the locking bodies 7, 7, 7 engaged with the locking parts 4, 4, 4 and the frame pieces F1a to F3b closed, each member 1
2 is fitted into the fitting portion 13 of each of the frame pieces F1b to F3b to prevent the frame pieces F1a to F3a and the frame pieces F1b to F3b from shifting or shaking. Further, the member 12 includes frame pieces F1a~
It also serves as a guide member for joining the end faces of F3a and frame pieces F1b to F3b without positional deviation. Note that this member 12 is a frame piece F1.
b, F2b, F3b side, frame piece F1
You may make it fit into the fitting part of a, F2a, F3a side.

The cutting section C includes a cutting machine 16 to which a saw chain 15 is attached, an engine 17, a drive box 18, and the like. Note that detailed explanations of matters that are not directly related to the present invention, such as the detailed structure of the cutting portion C and the drive means for the lifting wheels 1, will be omitted.

Menker cutting machine A has the above-mentioned configuration, and its handling will be explained next.

When setting the main body part B onto the standing tree T,
After releasing each locking body 7, 7, 7 from each locking portion 4, 4, 4, each frame piece F1a and F1
b, F2a and F2b, F3a and F3b are rotated in the expansion direction around each hinge part 3, 3, 3 to open them, and each frame piece F1a is passed through a standing tree T.
~Close F3b. Figure 5 a and b are such standing trees T
This shows a simple setup process. Figure 6a,
In this way, each frame piece F1a to F3
It shows how each locking body 7, 7, 7 automatically engages each locking part 4, 4, 4 when closing b. That is, when closing each frame piece F1a to F3b, the tapered surfaces 7a, 7a, 7a at the tip of each locking body 7, 7, 7 hit each locking part 4, 4, 4 (see Fig. 6a). ), each locking body 7, 7, 7 gradually rotates in the clockwise direction b against the spring force of the spring members 8, 8, and when each frame piece F1a to F3b is completely closed, each engaging portion 7b, 7b, 7b are each locking portion 4,
4, 4 (see b in the same figure). In this state, each locking body 7, 7, 7 is biased in the counterclockwise direction a by the spring members 8, 8, so each locking body 7, 7, 7
is firmly engaged with each locking part 4, 4, 4, and each member 12 is fitted into each fitting part 13, so that
The frame pieces F1a to F3b do not shift or shake. In this way, according to the present apparatus, the frame pieces F1a to F3b are reliably connected, and the main body part B is firmly set on the tree T.

When the main body part B is removed from the tree T after the pruning work is completed, the operating part 11 is rotated in the clockwise direction b against the spring force of the spring members 8, 8. Then, each locking body 7, 7, 7 moves in the same direction b as the rotating shaft 6.
, and the engaging portions 7b, 7b, 7b are disengaged from the locking portions 4, 4, 4, so that each frame piece F1a to F3b can be expanded and removed from the tree T. As described above, according to the present device, the main body B can be easily and quickly set on and removed from the standing tree T.

The present invention is not limited to the above embodiments,
Various design changes are possible; for example, in the above embodiment, there are three frames F1 to F3, but it may be two or more, and in the present invention, the main body can rise as soon as it climbs over a standing tree. However, the present invention can also be applied to a type of pruning machine in which the cutting section rotates along an annular frame surrounding a tree provided in the main body to cut branches.

(Effects of the invention) As explained above, the present invention is a branch consisting of a main body part B that surrounds a tree T and is provided with a plurality of frames F1 to F3 in the vertical direction, and a cutting part C that is attached to the main body part B. In the striking machine A, each of the above frames F1
~F3, respectively, a plurality of frame pieces F1a~F
3b, one end of each of the frame pieces F1a to F3b is rotatably connected to each other by a hinge part 3, and the other ends are connected to a locking part 4 provided at each other end. In addition to engaging with the locking body 7 which is detachably engaged with the portion 4,
Each of the locking bodies is connected to the same rotating shaft 6, biased by a spring member 8 in the engagement direction a with each of the locking parts 4, and the rotation operation part 1 of each of the locking bodies 7 is
1, multiple frames F1 to F3
The main body part B consisting of the main body part B can be easily and quickly set on and removed from the tree T, and the set state with respect to the tree T can be firmly maintained.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the pruning machine, the second figure is a partial perspective view, and the third figure is a perspective view of the pruning machine.
The figure is a sectional view, Figure 4 is a partial perspective view, Figures 5 a and b
6a and 6b are plan views during handling. A... Branching machine, B... Main body part, C... Cutting part,
F1, F2, F3...Frame, F1a, F2
a, F3a, F1b, F2b, F1... Lifting wheel, T... Standing tree, 3... Hinge part, 3b... Frame piece, 4... Locking part, 6... Rotating shaft, 7... Locking Body, 8... Spring material, 11... Rotation operation section.

Claims (1)

[Scope of utility model registration request] In a pruning machine comprising a main body having a plurality of frames in the vertical direction surrounding a standing tree, and a cutting section attached to the main body, each frame is formed from a plurality of frame pieces, and each frame is One ends of the pieces are rotatably connected to each other by a hinge part, and the other ends are connected to a locking part provided at each other end and a locking body removably engaged with the locking part. In addition to connecting each of the locking bodies to the same rotating shaft, a spring member urges the locking bodies in the direction of engagement with each of the locking parts, and the rotation operation part of each of the locking bodies is rotated. A pruning machine characterized by the following: